243
Issue 5/2014 System examples 2014 Floorstanding boilers from 80 kW including functions, hydraulics, components and electrics Combined heat and power units A3

Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

  • Upload
    others

  • View
    2

  • Download
    0

Embed Size (px)

Citation preview

Page 1: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Issue 5/2014

System examples 2014 Floorstanding boilers from 80 kW including functions, hydraulics, components and electrics Combined heat and power units

A3

Page 2: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Rated heatingoutput

Products

Boiler ≤ 20000 kW Vitogas 200 Chapter 2, page 7Vitoplex 200Vitoplex 300Vitoradial 300-TVitorond 200Vitomax 100-LWVitomax 200-LWVitomax 200-WSVitomax 300-LT

Gas condensing boiler ≤ 1000 kW Vitocrossal 200 Chapter 3, page 95Vitocrossal 300

Boiler ≤ 2000 kWin multi boilersystems – con-ventional andcondensingboilers

Vitocrossal 200 Chapter 4, page 123Vitocrossal 300Vitoplex 200Vitoplex 300Vitoradial 300-T

Flue gas/waterheat exchanger

Vitotrans 300 Chapter 5, page 173

DHW heating with cylinderloading system

Vitocell 100-L with Vitotrans 222 Chapter 6, page 183

Combined heat and powerunit (CHP unit)

Vitobloc 200 Chapter 7, page 187 Vitobloc 200 with Vitotrans 200 AC

Table of contents

System examples VIESMANN 5

5822

471

GB

1

Page 3: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Numbering of the technical components and the electrical connections

2/52M2

2/28

2/5

2/5Sol26/S2

2/1

X2

2/52M1

2/21qE

3

4

1

eE rR

qQ

qR

qW

8

9

qE

21 28 50 20M

152

M1

52M

2(5

Sol)

(6)

40 145

20M

2,24 1 5

2M1

2M2

2

M M

21 28 50 20M

1

2M1

40 145

20M

2,24 1 5

2/5qQ

2/21

2

NoteA CO limiter is available for the safety shutdown of the boiler if carbonmonoxide escapes (see Viessmann pricelist). Installation according tothe relevant installation instructions.

Table of contents (cont.)

6 VIESMANN System examples

1

5822

471

GB

Page 4: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

2.1 Overview of system examplesVitogas with one heating circuit with mixer, distribution pump and lowpressure distributor

Boiler with boiler circuit pump, low loss header and 3-way mixing valvefor return temperature raising

See page 9

ID: 4605378_1404_04

See page 36

ID: 4605386_1404_04Vitogas with one heating circuit with mixer and shunt pump for returntemperature raising

Boilers with Therm-Control

See page 13

ID: 4605377_1404_04

See page 41

ID: 4605069_1404_07Boiler with Therm-Control Boilers with a shunt pump for every boiler for return temperature rais-

ingSee page 17

ID: 4605066_1404_07

See page 48

ID: 4605070_1404_07Boiler with shunt pump for return temperature raising Boilers with a common shunt pump for return temperature raisingSee page 23

ID: 4605067_1404_07

See page 55

ID: 4605071_1404_07Boiler with shunt pump and 3-way mixing valve for return temperatureraising

Boilers with distribution pump and low pressure distributor

See page 30

ID: 4605068_1404_07

See page 63

ID: 4605072_1404_07

Boiler, ≤ 20,000 kW

System examples VIESMANN 7

5822

471

GB

2

Page 5: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Boilers with distribution pump and injection control Boilers with boiler circuit pump, low loss header and 3-way mixingvalve for return temperature raising

See page 71

ID: 4605073_1404_07

See page 87

ID: 4605075_1404_07Boilers with boiler circuit pump and 3-way mixing valve for return tem-perature raising

See page 79

ID: 4605074_1404_07

Boiler, ≤ 20,000 kW (cont.)

8 VIESMANN System examples

2

5822

471

GB

Page 6: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

2.2 Single boiler system: Vitogas with one heating circuit with mixer, distribution pumpand low pressure distributor

ID: 4605378_1404_04

ApplicationsHeating system and DHW heating■ One heating circuit with 3-way mixer

Main components■ Vitogas 200-F (from 72 kW)■ Vitotronic 200, type KO2B■ Distribution pump and low pressure distributor■ DHW cylinder

Function descriptionHeating circuit tP and DHW cylinder qP are regulated by boiler heat-ing circuit controller 1. The heating circuit and the DHW cylinder aresupplied by their individual circulation pumps tR and qE.Temperature sensor T1 qR reduces or completely closes mixer tT ifthe actual temperature falls below the required minimum return tem-perature.

Size distribution pump 4 to 110 % of the total heating system flowrate.Observe the corresponding pressure drops of the respective heat gen-erators when sizing pumps.

DHW heatingIf the temperature falls below the DHW temperature set at control unit2, the burner of boiler 1 starts and circulation pump qE of DHWcylinder qP runs.Within the periods selected at control unit 2, DHW is heated with orwithout priority control.In the case of absolute priority control, heating circuit pump tR of theheating circuit is switched off and mixer tT is closed. With modulatingpriority control of the heating circuit with mixer, heating circuit pumptR remains on, and mixer tT closes far enough to enable the set boilerwater temperature for cylinder heating to be reached. In this case,DHW cylinder qP and heating circuit with mixer tP are heated simul-taneously.

Heating modeThe boiler heating circuit controller regulates the boiler water temper-ature in weather-compensated mode (= flow temperature of the heat-ing circuit without mixer) and the temperature level of the heating circuitwith mixer via an extension kit for one heating circuit with mixer.

NoteThis scheme is a general system example. Refer to the relevanttechnical guides when designing for specific applications.

Required codes

ID: 4605378_1404_04Group Code Function"General" "00:3"

orSystems with one heating circuit with mixer, without DHW heatingqP

"00:4" Systems with one heating circuit with mixer, with DHW heating qP"Boiler" "02:1"

(set by the boiler coding card)Two-stage burner operation

Boiler, ≤ 20,000 kW (cont.)

System examples VIESMANN 9

5822

471

GB

2

Page 7: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Hydraulic installation scheme ID: 4605378_1404_04

--2/5--

KW

WW

--2/28--12

2

1

3

--23

0V--

--20

--

--21

----

28--

--5-

-

--K

M B

US

--

13--2/21--

10

--2/

1--

--1-

---

96--

9

--2/

3--

--3-

---

15--

50

54

52

55

--51/20--

--51/52--

53

--51/2--

51

--2-

---

52--

--20

----

KM

BU

S--

--23

0V--

--51/20--

M2

4

14

--51

/20-

-

--51/2--

11

KO2B

Note: This scheme is a general example without shut-off valves or safety equipment. This does not replace the need for on-site engineering.

Equipment required

ID: 4605378_1404_04Pos. Title Part no.1 Boiler with See Viessmann pricelist2 Control unit Standard delivery pos. 1 – Vitogas 200-F with Vitotronic 200, type KO2B 3 Outside temperature sensor ATS Standard delivery pos. 24 Distribution pump On site9 Boiler water temperature sensor KTS Standard delivery pos. 2qR Temperature controller T1 Z001 886qZ Contactor relay 7814 681 DHW heating by the boiler qP DHW cylinder See Viessmann pricelistqQ Cylinder temperature sensor STS Standard delivery pos. 2qW DHW circulation pump ZP See Vitoset pricelistqE Circulation pump for cylinder heating UPSB See Viessmann pricelist

Boiler, ≤ 20,000 kW (cont.)

10 VIESMANN System examples

2

5822

471

GB

Page 8: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

ID: 4605378_1404_04Pos. Title Part no.tP Heating circuit tQ Extension kit for one heating circuit with mixer M2

Components:7301 063

tW Flow temperature sensor M2 (contact temperature sensor)and

tT Mixer PCB with mixer motoror

tQ Extension kit for one heating circuit with mixer M2Components:

7301 062

tW Mixer PCB and flow temperature sensor (contact temperature sensor)tT Mixer motor M2 See Viessmann pricelisttE Temperature limiter for underfloor heating circuit 7151 728 or 7151 729tR Heating circuit pump M2

and 3-way mixerorDivicon

See Viessmann pricelist

Accessories (optional) 5 Two-stage/modulating burner extension Standard delivery pos. 26 Flue gas temperature sensor AGS 7452 5317 EA1 extension 7452 091wI Resistor 825 Ω On sitezW Central fault message (requires EA1 extension) On sitezE External hook-up: (requires EA1 extension)

– External blocking– External demand– External operating program changeover

On site

zR External set value 0 to 10 V (requires EA1 extension) On sitezT Vitotrol 200A Z008 341zZ Vitotrol 300A Z008 342 Alternative to hardwired Vitotrol 200A and 300A remote control q-P Wireless base station Z011 413q-Q Vitotrol 200 RF Z011 219q-W Vitotrol 300 RF with table-top dock Z011 410q-E Vitotrol 300 RF with wall mounting bracket Z011 412q-R Wireless outside temperature sensor 7455 213q-T Wireless repeater 7456 538zU Radio clock receiver 7450 563zI KM BUS distributor, for several KM BUS subscribers 7415 028 KM BUS subscribers:

– EA1 extension 7– Vitotrol 200A zT– Vitotrol 300A zZ– Wireless base station q-P

See Viessmann pricelist

zO Vitocom 100, type GSM2 Z011 396 / Z011 388uP Vitocom 100, type LAN1 with communication module Z011 224uQ Vitocom 200, type LAN2 with communication module Z011 390iP External extension H5 7199 249iQ Motorised flue gas damper See Viessmann pricelist

Boiler, ≤ 20,000 kW (cont.)

System examples VIESMANN 11

5822

471

GB

2

Page 9: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Electrical installation scheme

230 V/50 Hz

230

V/5

0 H

z

40

96

Low

vol

tage

STS

KM BUS145

145

5

40

20

21 UPSBM1~

ZPM1~28

LON2

ATS

145

1

KTS3

EA1

191

9

15

90

AGS

40

40A

145 34

20

52

2 12

40A

2

M2

N

L

M2M1~

M1~ VP

417 41

150

X12 47X12 2

41

M

7

4

123

1212

12

12

12

12

3

VTS M2

825Ω

T11

2 3

34

HK M2

KM BUS distributor

145 12

L

NKO2B

145

145

/

L

N40

40A

157

0-10V

145

12

56DE3

34DE2

DE1

EA1

34

96

40 M2

S

/ / / /

L

N

1

32

L

NL

NL

N

NM1~

L

N

N

L1

1

32

1

32

L

N

S

12

12

2

80

7

81

13

12

5

6

11

9

67

3

70 71

68

65 66

7

2

51

62

64

63

51

7

16

4

53

54

55

5228

14

69 66 100

63

63

ID: 4605378_1404_04

Boiler, ≤ 20,000 kW (cont.)

12 VIESMANN System examples

2

5822

471

GB

Page 10: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

2.3 Single boiler system: Vitogas with one heating circuit with mixer and shunt pump forreturn temperature raising

ID: 4605377_1404_04

ApplicationsHeating system and DHW heating■ One heating circuit with 3-way mixer

Main components■ Vitogas 200-F (from 72 kW)■ Vitotronic 200, type KO2B■ Shunt pump■ DHW cylinder

Function descriptionHeating circuit tP and DHW cylinder qP are regulated by boiler heat-ing circuit controller 1. The heating circuit and the DHW cylinder aresupplied by their individual circulation pumps tR and qE.Temperature controller T2 qT starts the shunt pump if the actual tem-perature falls below the required minimum return temperature. Theflow rate must be reduced by at least 50 % via temperature controllerT1 qR if the minimum return temperature is not achieved, even if thereturn temperature is raised.

Size shunt pump 4 to approx. 30 % of the total boiler flow rate.

DHW heatingIf the temperature falls below the DHW temperature set at control unit2, the burner of boiler 1 starts and circulation pump qE of DHWcylinder qP runs.Within the periods selected at control unit 2, DHW is heated with orwithout priority control.In the case of absolute priority control, heating circuit pump tR of theheating circuit is switched off and mixer tT is closed. With modulatingpriority control of the heating circuit with mixer, heating circuit pumptR remains on, and mixer tT closes far enough to enable the set boilerwater temperature for cylinder heating to be reached. In this case,DHW cylinder qP and heating circuit with mixer tP are heated simul-taneously.

Heating modeThe boiler heating circuit controller regulates the boiler water temper-ature in weather-compensated mode (= flow temperature of the heat-ing circuit without mixer) and the temperature level of the heating circuitwith mixer via an extension kit for one heating circuit with mixer.

NoteThis scheme is a general system example. Refer to the relevanttechnical guides when designing for specific applications.

Required codes

ID: 4605377_1404_04Group Code Function"General" "00:3"

orSystems with one heating circuit with mixer, without DHW heatingqP

"00:4" Systems with one heating circuit with mixer, with DHW heating qP"Boiler" "02:1"

(set by the boiler coding card)Two-stage burner operation

Boiler, ≤ 20,000 kW (cont.)

System examples VIESMANN 13

5822

471

GB

2

Page 11: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Hydraulic installation scheme ID: 4605377_1404_04

--2/5--

KW

WW

--2/28--12

2

1

3

--23

0V--

--20

--

--21

----

28--

--5-

-

--K

M B

US

--

13--2/21--

10

--2/

1--

--1-

---

96--

9

--2/

3--

--3-

---

15--

50

54

52

55

--51/20--

--51/52--

53

--51/2--

51

--2-

---

52--

--20

----

KM

BU

S--

--23

0V--

--51/20--

M2

4

15

14

--51

/20-

-

--51/20--

--51/2--

11

KO2B

Note: This scheme is a general example without shut-off valves or safety equipment. This does not replace the need for on-site engineering.

Equipment required

ID: 4605377_1404_04Pos. Title Part no.1 Boiler with See Viessmann pricelist2 Control unit Standard delivery pos. 1 – Vitogas 200-F with Vitotronic 200, type KO2B 3 Outside temperature sensor ATS Standard delivery pos. 24 Shunt pump On site9 Boiler water temperature sensor KTS Standard delivery pos. 2qR Temperature controller T1 Z001 886qT Temperature controller T2 Z001 886qZ Contactor relay 7814 681 DHW heating by the boiler qP DHW cylinder See Viessmann pricelistqQ Cylinder temperature sensor STS Standard delivery pos. 2qW DHW circulation pump ZP See Vitoset pricelistqE Circulation pump for cylinder heating UPSB See Viessmann pricelist

Boiler, ≤ 20,000 kW (cont.)

14 VIESMANN System examples

2

5822

471

GB

Page 12: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

ID: 4605377_1404_04Pos. Title Part no.tP Heating circuit tQ Extension kit for one heating circuit with mixer M2

Components:7301 063

tW Flow temperature sensor M2 (contact temperature sensor)and

tT Mixer PCB with mixer motoror

tQ Extension kit for one heating circuit with mixer M2Components:

7301 062

tW Mixer PCB and flow temperature sensor (contact temperature sensor)tT Mixer motor M2 See Viessmann pricelisttE Temperature limiter for underfloor heating circuit 7151 728 or 7151 729tR Heating circuit pump M2

and 3-way mixerorDivicon

See Viessmann pricelist

Accessories (optional) 5 Two-stage/modulating burner extension Standard delivery pos. 26 Flue gas temperature sensor AGS 7452 5317 EA1 extension 7452 091wI Resistor 825 Ω On sitezW Central fault message (requires EA1 extension) On sitezE External hook-up: (requires EA1 extension)

– External blocking– External demand– External operating program changeover

On site

zR External set value 0 to 10 V (requires EA1 extension) On sitezT Vitotrol 200A Z008 341zZ Vitotrol 300A Z008 342 Alternative to hardwired Vitotrol 200A and 300A remote control q-P Wireless base station Z011 413q-Q Vitotrol 200 RF Z011 219q-W Vitotrol 300 RF with table-top dock Z011 410q-E Vitotrol 300 RF with wall mounting bracket Z011 412q-R Wireless outside temperature sensor 7455 213q-T Wireless repeater 7456 538zU Radio clock receiver 7450 563zI KM BUS distributor, for several KM BUS subscribers 7415 028 KM BUS subscribers:

– EA1 extension 7– Vitotrol 200A zT– Vitotrol 300A zZ– Wireless base station q-P

See Viessmann pricelist

uP Vitocom 100, type GSM2 Z011 396 / Z011 388uQ Vitocom 100, type LAN1 with communication module Z011 224uW Vitocom 200, type LAN2 with communication module Z011 390iP External extension H5 7199 249iQ Motorised flue gas damper See Viessmann pricelist

Boiler, ≤ 20,000 kW (cont.)

System examples VIESMANN 15

5822

471

GB

2

Page 13: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Electrical installation scheme

M2

M2M1~

M1~ BP

T2

VTS M2

825Ω

T11

2 3

230 V/50 Hz

230

V/5

0 H

z

40

96

Low

vol

tage

STS

KM BUS145

145

5

40

20

21 UPSBM1~

ZPM1~28

LON2

ATS

145

145

1

KTS3

EA1

191

9

15

90

AGS

40

40A

145 34

20

52

2 12

2

N

L

417 41

150

X12 47X12 2

41

M

7

4

123

1212

12

12

12

12

3

34

HK M2

KM BUS distributor

145 12

L

N

KO2B

40A

145

/

L

N40

40A

157

0-10V

145

12

56DE3

34DE2

DE1

EA1

34

96

40 M2

S

/

/ / /

M1~

L

N

1

32

L

N

L

N

L

N

NL

N

N

L1

1

32

1

32

L

N

S

12

12

2

7

80

81

13

12

5

6

11

9

67

3

68

69

65 66

7

51

16

7

4

15

54

53

55

5228

14

2

51

62

64

63

71 72

70 100

63

63

ID: 4605377_1404_04

Boiler, ≤ 20,000 kW (cont.)

16 VIESMANN System examples

2

5822

471

GB

Page 14: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

2.4 Single boiler system: Boiler with Therm-Control

ID: 4605066_1404_07

ApplicationsHeating systems with distributor installed close to the boiler.The boiler water flow rate must be able to be reduced.

Main components

Single boiler system with:■ Vitoplex 200 (up to 560 kW)

orVitoplex 300orVitoradial 300-TorVitorond 200 (125 to 270 kW)

■ Vitotronic 300, type GW2B■ Therm-Control for operating boilers without return temperature rais-

ing facility

Function descriptionIf the actual temperature falls below the factory-set temperatures atTherm-Control temperature sensor 5, Therm-Control will regulateheating circuit control units qP and qR or heating circuit pumps qW andqZ. In the start-up phase (e.g. during commissioning or after a nightor weekend shutdown), the boiler water flow rate must be reduced byat least 50 %.

If it is not possible to reduce the boiler water flow rate, e.g. in oldersystems, we recommend the system examples with shunt pump and3-way mixing valve, or with boiler circuit pump and 3-way mixing valve,or with boiler circuit pump, low loss header and 3-way mixing valve asa single boiler system.A minimum return temperature does not need to be maintained in con-junction with Therm-Control. Shunt pumps and/or boiler circuit pumpsor costly mixing valves for raising the return boiler water temperatureare not required.

DHW heatingThe DHW is heated up when the actual temperature falls below theset DHW temperature selected at cylinder temperature sensor 8,subject to cylinder heating being enabled by the time switch. The boilerwater temperature is raised to the set DHW temperature +20 K andthe circulation pump for cylinder heating is started, if the boiler watertemperature is 7 K above the actual DHW temperature.If the heating circuits are regulated via the Vitotronic, heating circuitpumps M2 qW and M3 qZ are switched off and mixers M2 qE and M3qU are closed, subject to absolute priority being enabled. Subject tomodulating priority, heating circuit pumps M2 and M3 remain switchedon, and mixers M2 and M3 are closed far enough for the set boilerwater temperature for cylinder heating to be achieved. In that case, theDHW cylinder and heating circuits will be heated simultaneously.

Heating modeDepending on the control unit used, the flow temperature of the heatingcircuits can be operated in modulating mode, subject to the outsidetemperature. The boiler water temperature is regulated 8 K higher thanthe set flow temperature.

NoteThis scheme is a general system example. Refer to the relevanttechnical guides when designing for specific applications.

Required codes

ID: 4605066_1404_07Group Code Function"General" "00:8" Two heating circuits with mixer M2 (heating circuit 2) and M3 (heating

circuit 3) with DHW heating"Boiler" "02:1"

or "02:2"

Two-stage burner (delivered condition)

Modulating burner

Boiler, ≤ 20,000 kW (cont.)

System examples VIESMANN 17

5822

471

GB

2

Page 15: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Hydraulic installation scheme ID: 4605066_1404_07

KW

WW

6

7

9

10

11

12

13

14

15

16

17

--2/2M2--

--2/20M2--

--2/52M2--

--2/2M3--

--2/20M3--

8--2/21--

--2/28--

4

1

3

--2/

3/2-

-

--2/

1--

2

--23

0V--

--21

----

28--

--52

M2-

---

20M

2--

--52

M3-

---

20M

3--

--2M

3--

--2M

2--

--5A

----

1--

--K

M-B

us--

--2/52M3--

--17

A--

--3/

2--

5

--2/

17A

--

--2/5A--

GW2B

Note: This scheme is a general example without shut-off valves or safety equipment. This does not replace the need for on-site engineering.

Equipment required

ID: 4605066_1404_07Pos. Title Part no.1 Boiler See Viessmann pricelist2 Vitotronic 300, type GW2B Standard delivery pos. 13 Outside temperature sensor ATS Standard delivery pos. 24 Boiler water temperature sensor KTS Standard delivery pos. 25 Therm-Control temperature sensor Standard delivery pos. 1rR ON/OFF switch On site6 DHW cylinder See Viessmann pricelist7 Cylinder temperature sensor STS Vitotronic standard delivery8 Circulation pump for cylinder heating UPSB See Viessmann pricelist9 DHW circulation pump ZP See Vitoset pricelist

Boiler, ≤ 20,000 kW (cont.)

18 VIESMANN System examples

2

5822

471

GB

Page 16: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

ID: 4605066_1404_07Pos. Title Part no.qP Heating circuit I On siteqW Heating circuit pump M2 (heating circuit I) On site Extension kit for one heating circuit with mixer comprising 7441 998qQ Flow temperature sensor M2 (heating circuit I)

and

qE Mixer motor M2 (heating circuit I) or qQ – Contact temperature sensor

or7426 463

– Immersion temperature sensorSensor well R½ x 100Sensor well R½ x 150

7438 7027816 0357817 326

and qE Mixer motor for flanged mixer M2 (heating circuit I) See Viessmann pricelistqR Heating circuit II On siteqZ Heating circuit pump M3 (heating circuit II) On site Extension kit for one heating circuit with mixer comprising 7441 998qT Flow temperature sensor M3 (heating circuit II)

and

qU Mixer motor M3 (heating circuit II) or qT – Contact temperature sensor

or7426 463

– Immersion temperature sensorSensor well R½ x 100Sensor well R½ x 150

7438 7027816 0357817 326

and qU Mixer motor for flanged mixer M3 (heating circuit II) See Viessmann pricelist Accessories (optional) qI Plug-in adaptor for external safety equipment 7164 404qO Minimum pressure switch or limiter SDB 7438 030wP Maximum pressure limiter SDB 7438 025wQ Water level limiter (low water indicator) WB See Viessmann pricelistwW Central fault message system S On sitewE Flue gas temperature sensor AGS 7452 531wR Vitotrol 200A

orZ008 341

Vitotrol 300A Z008 342 As an alternative to hardwired remote control units, the following wireless accessory may be usedq-P Wireless base station Z011 413q-Q Vitotrol 200 RF Z011 219q-W Vitotrol 300 RF with table-top dock Z011 410q-E Vitotrol 300 RF with wall mounting bracket Z011 412q-R Wireless outside temperature sensor 7455 213q-T Wireless repeater 7456 538wT Radio clock receiver 7450 563wZ Contactor relay 7814 681

Boiler, ≤ 20,000 kW (cont.)

System examples VIESMANN 19

5822

471

GB

2

Page 17: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

ID: 4605066_1404_07Pos. Title Part no.wU Downstream heating circuit controller, contact closed: Signal for mixer "CLOSE" On siteePeQ

eW

eE

EA1 extension:1 analogue input (0 to 10 V)– Specifying the set boiler water temperature3 digital inputs– External changeover of the operating status for heating circuits 1 to 3, may be switched individually

(with weather-compensated control unit)– External blocking with central fault message– Fault messages– Brief operation of DHW circulation pump (with weather-compensated control unit)1 switching output (floating changeover contact)– Switching a feed pump to a substation– Signalling reduced mode for a heating circuit

7452 091

eReTeZeU

External hook-ups for weather-compensated control units– External demand– External changeover of stepped/modulating burners– External blocking/mixer close– External operating program changeover/mixer open

On site

rP KM BUS distributor, for several KM BUS subscribers 7415 028 KM BUS subscribers:

– EA1 extension– Vitotrol 200A, 300A– Wireless base station

See Viessmann pricelist

rQ LON communication module for communication with the following components:Vitotronic 200-H (for regulating additional heating circuits)

7172 173

rW Vitocom 100, type GSM2 Z011 396 / Z011 388rE Vitocom 100, type LAN1 with communication module Z011 224rR Vitocom 200, type LAN2 with communication module Z011 390rZ Vitocom 300, type LAN3 with LON communication module Z011 399

Wiring diagramWiring of the Therm-Control in heating systems with heating circuitcontrol units that are not connected to the boiler control unit via theLON.Required code:Change "4C "to "2" – use plug-in connection sÖ A1 for closing down-stream mixers. Change "0D" to "1" – Therm-Control influences themixers of the downstream heating circuits (for Vitotronic 300, deliveredcondition).

20

A1

LN

K

1 2 ... n

ID: 4605066_1404_07

Boiler, ≤ 20,000 kW (cont.)

20 VIESMANN System examples

2

5822

471

GB

Page 18: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Electrical installation scheme

Main PCB 230 V

ZP

230

V/ 5

0 H

z

2

9

151

90

41

150

156

156

40

50

29

20 A1

52 A1

21

28

UPSB 8

184

4

4

SDB

SDB

WB

90

414

7

145

2

2

230 V/ 50 Hz

S

719

20

21

22

40

145

44

30

40

PCB ME

Main PCB

GW2B

N

L

L

N

L

N

L

N

L

N

N

L

N

L

NM1~

L

N

M1~

1

32

P

P

ID: 4605066_1404_07

Boiler, ≤ 20,000 kW (cont.)

System examples VIESMANN 21

5822

471

GB

2

Page 19: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Main PCB LV connections

Low

vol

tage

STS

1

146

143

15 12

145

145

LON

AGS

349

T1

3/2 12

KTS

5B

5A

17B

17A

145

ATS

145

145

40

40A

157

0-10V

145

L

N

34

DE3

145

DE2

DE1

156

1234

Main PCB

EA1

KM BUS distributor

12

VTS M22 M2

12

VTS M32 M3

20 M2

20 M3

52 M2

52 M3

M2

M3

156

230

V/5

0 H

z

HKP M2

HCP M3

40

PCB ME

GW2B

KM BUS

/ /

/ /

1

32

1

32

1

32

1

32

L

N

S

12

12

12

1234

1234

L

N

L

N

N

N

M1~

M1~

M1~

M1~

N

L

12

1

32

1

32

2

3435

23

5

7

4

25

3

18

41 43 44

11

15

12

16

13

17

2

40

30

2

33

31

32

24 42 100

3637

46

32

32

ID: 4605066_1404_07

Boiler, ≤ 20,000 kW (cont.)

22 VIESMANN System examples

2

5822

471

GB

Page 20: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

2.5 Single boiler system: Boiler with shunt pump for return temperature raising

ID: 4605067_1404_07

ApplicationsHeating systems with distributor installed close to the boiler. The boilerwater flow rate must be able to be reduced.

Main components

Single boiler system with:■ Vitoplex 200 or 300

orVitoradial 300-TorVitorond 200orVitomax 100-LW, 200-LW or 300-LT

■ Vitotronic 300, type GW2B■ Shunt pump

Function descriptionTemperature sensor T2 6 starts shunt pump 5 if the actual tem-perature falls below the required minimum return temperature. Reducethe flow rate by at least 50 % via temperature sensor T1 7 if theminimum return temperature is not achieved, even if the return tem-perature is raised.

Size shunt pump 5 to approx. 30 % of the total boiler flow rate.If it is not possible to reduce the boiler water flow rate, e.g. in oldersystems, we recommend the sample applications with shunt pump and3-way mixing valve, or with boiler circuit pump and 3-way mixing valve,or with boiler circuit pump, low loss header and 3-way mixing valve asa single boiler system.No boiler circuit pump or costly mixing valve for raising the return tem-perature is required.

DHW heatingThe DHW is heated up when the actual temperature falls below theDHW temperature selected at the cylinder temperature sensor, subjectto cylinder heating being enabled by the time switch. The boiler watertemperature is raised to the set DHW temperature +20 K and the cir-culation pump for cylinder heating qP is started if the boiler water tem-perature is 7 K above the DHW temperature.If the heating circuits are regulated via the Vitotronic, heating circuitpumps M2 qR and M3 qI are switched off and mixers M2 qT and M3qO are closed, subject to absolute priority being enabled. Subject tomodulating priority, heating circuit pumps M2 and M3 remain switchedon, and mixers M2 and M3 are closed far enough for the set boilerwater temperature for cylinder heating to be achieved. In that case, theDHW cylinder and heating circuits will be heated simultaneously.

Heating modeDepending on the control unit used, the flow temperature of the heatingcircuits can be operated in modulating mode, subject to the outsidetemperature. The boiler water temperature is regulated 8 K higher thanthe set flow temperature.

NoteThis scheme is a general system example. Refer to the relevanttechnical guides when designing for specific applications.

Required codes

ID: 4605067_1404_07Group Code Function"General" "00:8" Two heating circuits with mixer M2 (heating circuit 2) and M3 (heating

circuit 3) with DHW heating"Boiler" "02:1"

or "02:2"

Two-stage burner (delivered condition)

Modulating burner

Boiler, ≤ 20,000 kW (cont.)

System examples VIESMANN 23

5822

471

GB

2

Page 21: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Hydraulic installation scheme ID: 4605067_1404_07

KW

WW

--3/5A--

8

9

11

12

13

14

15

16

17

18

19

--3/2M2--

--3/20M2--

--3/52M2--

--3/2M3--

--3/20M3--

10--3/21--

--3/28--

72

1

4--3/17A--

--3/

3/2-

-

--3/

1--

3

--23

0V--

--21

----

28--

--52

M2-

---

20M

2--

--52

M3-

---

20M

3--

--2M

3--

--2M

2--

--5A

----

1--

--K

M-B

us--

--3/52M3--

--3/

29--

5

--3/17B--6

--17

A--

--3/

2--

--17

B--

--29

--

GW2B

Note: This scheme is a general example without shut-off valves or safety equipment. This does not replace the need for on-site engineering.

Boiler, ≤ 20,000 kW (cont.)

24 VIESMANN System examples

2

5822

471

GB

Page 22: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Equipment required

ID: 4605067_1404_07Pos. Title Part no.1 Boiler See Viessmann pricelist2 Boiler water temperature sensor KTS Standard delivery pos. 33 Vitotronic, type GW2B Standard delivery pos. 14 Outside temperature sensor ATS Standard delivery pos. 35 Shunt pump BP On site6 Return temperature BMP – Contact temperature sensor

or7426 463

– Immersion temperature sensorSensor well R½ x 100Sensor well R½ x 150

7438 7027816 0357817 326

7 Return temperature sensor, heating circuits – Contact temperature sensor

or7426 463

– Immersion temperature sensorSensor well R½ x 100Sensor well R½ x 150

7438 7027816 0357817 326

rR ON/OFF switch On site8 DHW cylinder See Viessmann pricelist9 Cylinder temperature sensor STS Standard delivery of

Vitotronic 200 and 300or7438 702 for the Vitotronic100

qP Circulation pump for cylinder heating UPSB See Viessmann pricelistqQ DHW circulation pump ZP See Vitoset pricelistqW Heating circuit I (only for Vitotronic 300, type GW2B) On siteqR Heating circuit pump M2 (heating circuit I) On site Extension kit for one heating circuit with mixer comprising 7441 998qE Flow temperature sensor M2 (heating circuit I)

and

qT Mixer motor M2 (heating circuit I) or qE – Contact temperature sensor

or7426 463

– Immersion temperature sensorSensor well R½ x 100Sensor well R½ x 150(see pricelist for further heating circuit control units)

7438 7027816 0357817 326

and qT Mixer motor for flanged mixer M2 (heating circuit I) See Viessmann pricelistqZ Heating circuit II (only for Vitotronic 300, type GW2B) On siteqI Heating circuit pump M3 (heating circuit II) On site Extension kit for one heating circuit with mixer comprising 7441 998qU Flow temperature sensor M3 (heating circuit II)

and

qO Mixer motor M3 (heating circuit II) or qU – Contact temperature sensor

or7426 463

– Immersion temperature sensorSensor well R½ x 100Sensor well R½ x 150(see pricelist for further heating circuit control units)

7438 7027816 0357817 326

and qO Mixer motor for flanged mixer M3 (heating circuit II) See Viessmann pricelist

Boiler, ≤ 20,000 kW (cont.)

System examples VIESMANN 25

5822

471

GB

2

Page 23: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

ID: 4605067_1404_07Pos. Title Part no. Accessories (optional) wP Plug-in adaptor for external safety equipment 7164 404wQ Minimum pressure switch or limiter SDB 7438 030wW Maximum pressure limiter SDB 7438 025wE Water level limiter (low water indicator) WB See Viessmann pricelistwR Central fault message system S On sitewT Flue gas temperature sensor AGS 7452 531wZ Vitotrol 200A

orZ008 341

Vitotrol 300A Z008 342 As an alternative to hardwired remote control units, the following wireless accessory may be usedq-P Wireless base station Z011 413q-Q Vitotrol 200 RF Z011 219q-W Vitotrol 300 RF with table-top dock Z011 410q-E Vitotrol 300 RF with wall mounting bracket Z011 412q-R Wireless outside temperature sensor 7455 213q-T Wireless repeater 7456 538wU Radio clock receiver 7450 563wI Contactor relay 7814 681ePeQ

eW

eE

EA1 extension:1 analogue input (0 to 10 V)– Specifying the set boiler water temperature3 digital inputs– External changeover of the operating status for heating circuits 1 to 3, may be switched individually

(with weather-compensated control unit)– External blocking with central fault message– Fault messages– Brief operation of DHW circulation pump (with weather-compensated control unit)1 switching output (floating changeover contact)– Switching a feed pump to a substation– Signalling reduced mode for a heating circuit

7452 091

eReTeZeU

External hook-ups for weather-compensated control units– External demand– External changeover of stepped/modulating burners– External blocking/mixer close– External operating program changeover/mixer open

On site

rP KM BUS distributor, for several KM BUS subscribers 7415 028 KM BUS subscribers:

– EA1 extension– Vitotrol 200A, 300A– Wireless base station

See Viessmann pricelist

rQ LON communication module for communication with the following components:Vitotronic 200-H (for regulating additional heating circuits)

7172 173

rW Vitocom 100, type GSM2 Z011 396 / Z011 388rE Vitocom 100, type LAN1 with communication module Z011 224rR Vitocom 200, type LAN2 with communication module Z011 390rZ Vitocom 300, type LAN3 with LON communication module Z011 399

Temperature sensor T1 7For the Vitoplex (not type SX2 from 535 kW) and the Vitorond 200 (125 to 270 kW), the immersion temperature sensor supplied as standardcan be used. Remove the sensor well from the boiler. Seal the port with a plug.

Boiler, ≤ 20,000 kW (cont.)

26 VIESMANN System examples

2

5822

471

GB

Page 24: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Electrical installation scheme

Main PCB 230 V

ZP

230

V/ 5

0 H

z

11

151

90

41

150

156

156

40

50

29

20 A1

52 A1

21

28

UPSB 10

204

4

4

SDB

SDB

WB

90

414

7

145

3

3

230 V/ 50 Hz

S

721

22

23

24

BP 5

40

145

44

30

40

PCB ME

Main PCB

3 GW2B

N

L

L

N

L

N

L

N

L

N

N

L

N

L

NM1~

L

N

M1~

1

32

P

P

M1~

ID: 4605067_1404_07

Boiler, ≤ 20,000 kW (cont.)

System examples VIESMANN 27

5822

471

GB

2

Page 25: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Main PCB LV connections

Low

vol

tage

STS

1

146

143

15 12

145

145

LON

AGS

349

T1

3/2 12

KTS

5B

5A

17B

17A

145

ATS

145

145

40

40A

157

0-10V

145

L

N

34

DE3

145

DE2

DE1

156

1234

Main PCB

EA1

KM BUS distributor

12

VTS M22 M2

12

VTS M32 M3

20 M2

20 M3

52 M2

52 M3

M2

M3

156

230

V/5

0 H

z

HKP M2

HCP M3

40

PCB ME

GW2B

KM BUS

/ /

/ /

T2

1

32

1

32

1

32

1

32

L

N

S

12

12

12

1234

1234

L

N

L

N

N

N

M1~

M1~

M1~

M1~

N

L

12

1

32

1

32

2

3435

25

7

9

2

27

4

20

41 43 44

13

17

14

18

15

19

3

40

30

3

33

31

32

24 42 100

3637

46

32

32

6

ID: 4605067_1404_07

Wiring diagramWiring for closing a mixer installed downstream via temperature sensor T1 in heating systems with heating circuit control units that are notconnected to the boiler control unit via LON.Required code:Change "4C "to "2" – use plug-in connection sÖ A1 for closing downstream mixers. Change "0D" to "1" – Therm-Control influences the mixersof the downstream heating circuits (for Vitotronic 300, delivered condition).

Boiler, ≤ 20,000 kW (cont.)

28 VIESMANN System examples

2

5822

471

GB

Page 26: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

20

A1

LN

K

1 2 ... n

wI

wO

cl. cl. cl.

ID: 4605067_1404_07

Boiler, ≤ 20,000 kW (cont.)

System examples VIESMANN 29

5822

471

GB

2

Page 27: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

2.6 Single boiler system: Boiler with shunt pump and 3-way mixing valve for return tem-perature raising

ID: 4605068_1404_07

ApplicationsHeating systems where downstream heating circuits cannot be con-trolled, e.g. older heating systems or commercial nurseries.

Main components

Single boiler system with:■ Vitoplex 200 or 300

orVitoradial 300-TorVitorond 200orVitomax 100-LW, 200-LW or 300-LT

■ Vitotronic 300, type GW2B■ Shunt pump■ 3-way mixer

Function descriptionTemperature sensor T2 7 starts shunt pump 5 if the actual tem-perature falls below the required minimum return temperature. If thisdoes not achieve the required minimum return temperature, tempera-ture sensor T1 8 proportionally closes 3-way mixer 6, thereby safe-guarding the minimum return temperature.

Proportional return temperature raising to protect the boiler. A boilercircuit pump is not required.Boilers are protected against return temperatures that are too low,independently of the downstream heating circuits.

DHW heatingThe DHW is heated up when the actual temperature falls below theset DHW temperature at cylinder temperature sensor qP, subject tocylinder heating being enabled by the time switch. The boiler watertemperature is raised to the set DHW temperature +20 K and the cir-culation pump for cylinder heating qQ is started if the boiler water tem-perature is 7 K above the DHW temperature.If the heating circuits are regulated via the Vitotronic 3, heating circuitpumps M2 qT and M3 qO are switched off and mixers M2 qZ and M3wP are closed, subject to absolute priority being enabled. Subject tomodulating priority, heating circuit pumps M2 and M3 remain switchedon, and mixers M2 and M3 are closed far enough for the set boilerwater temperature for cylinder heating to be achieved. In that case, theDHW cylinder and heating circuits will be heated simultaneously.

Heating modeDepending on the control unit used, the flow temperature of the heatingcircuits can be operated in modulating mode, subject to the outsidetemperature. The boiler water temperature is regulated 8 K higher thanthe set flow temperature.

NoteThis scheme is a general system example. Refer to the relevanttechnical guides when designing for specific applications.

Required codes

ID: 4605068_1404_07Group Code Function"General" "00:8" Two heating circuits with mixer M2 (heating circuit 2) and M3 (heating

circuit 3) with DHW heating"Boiler" "02:1"

or "02:2"

Two-stage burner (delivered condition)

Modulating burner"Boiler" "0C:1" Constant return temperature control

Boiler, ≤ 20,000 kW (cont.)

30 VIESMANN System examples

2

5822

471

GB

Page 28: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Hydraulic installation scheme ID: 4605068_1404_07

KW

WW

9

10

12

13

14

15

16

17

18

19

20

--3/2M2--

--3/20M2--

--3/52M2--

--3/2M3--

--3/20M3--

11--3/21--

--3/28--

82

1

4--3/17A--

--3/

3/2-

-

--4/

1--

3

--23

0V--

--21

----

28--

--52

M2-

---

20M

2--

--52

M3-

---

20M

3--

--2M

3--

--2M

2--

--5A

----

1--

--K

M-B

us--

--3/

52A

1--

6

--3/52M3--

--3/

29--

5

--3/17B--7

--17

A--

--3/

2--

--17

B--

--52

A1-

---

29--

--3/5A--

GW2B

Note: This scheme is a general example without shut-off valves or safety equipment. This does not replace the need for on-site engineering.

Boiler, ≤ 20,000 kW (cont.)

System examples VIESMANN 31

5822

471

GB

2

Page 29: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Equipment required

ID: 4605068_1404_07Pos. Title Part no.1 Boiler See Viessmann pricelist2 Boiler water temperature sensor KTS Standard delivery pos. 33 Vitotronic 300, type GW2B Standard delivery pos. 14 Outside temperature sensor ATS Standard delivery pos. 35 Shunt pump BP On site6 3-way mixing valve On site7 Return temperature sensor BMP – Contact temperature sensor

or7426 463

– Immersion temperature sensorSensor well R½ x 100Sensor well R½ x 150

7438 7027816 0357817 326

8 Return temperature sensor, heating circuits – Contact temperature sensor

or7426 463

– Immersion temperature sensorSensor well R½ x 100Sensor well R½ x 150

7438 7027816 0357817 326

rR ON/OFF switch On site9 DHW cylinder See Viessmann pricelistqP Cylinder temperature sensor STS Standard delivery of

Vitotronic 200 and 300or7438 702 for the Vitotronic100

qQ Circulation pump for cylinder heating UPSB See Viessmann pricelistqW DHW circulation pump ZP See Vitoset pricelistqE Heating circuit I (only for Vitotronic 300, type GW2B) On siteqT Heating circuit pump M2 (heating circuit I) On site Extension kit for one heating circuit with mixer comprising 7441 998qR Flow temperature sensor M2 (heating circuit I)

and

qZ Mixer motor M2 (heating circuit I) or qR – Contact temperature sensor

or7426 463

– Immersion temperature sensorSensor well R½ x 100Sensor well R½ x 150(see pricelist for further heating circuit control units)

7438 7027816 0357817 326

and qZ Mixer motor for flanged mixer M2 (heating circuit I) See Viessmann pricelistqU Heating circuit II (only for Vitotronic 300, type GW2B) On siteqO Heating circuit pump M3 (heating circuit II) On site Extension kit for one heating circuit with mixer comprising 7441 998qI Flow temperature sensor M3 (heating circuit II)

and

wP Mixer motor M3 (heating circuit II) or qI – Contact temperature sensor

or7426 463

– Immersion temperature sensorSensor well R½ x 100Sensor well R½ x 150(see pricelist for further heating circuit control units)

7438 7027816 0357817 326

and wP Mixer motor for flanged mixer M3 (heating circuit II) See Viessmann pricelist

Boiler, ≤ 20,000 kW (cont.)

32 VIESMANN System examples

2

5822

471

GB

Page 30: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

ID: 4605068_1404_07Pos. Title Part no. Accessories (optional) wQ Plug-in adaptor for external safety equipment 7164 404wW Minimum pressure switch or limiter SDB 7438 030wE Maximum pressure limiter SDB 7438 025wR Water level limiter (low water indicator) WB See Viessmann pricelistwT Central fault message system S On sitewZ Flue gas temperature sensor AGS 7452 531wU Vitotrol 200A

orZ008 341

Vitotrol 300A Z008 342 As an alternative to hardwired remote control units, the following wireless accessory may be usedq-P Wireless base station Z011 413q-Q Vitotrol 200 RF Z011 219q-W Vitotrol 300 RF with table-top dock Z011 410q-E Vitotrol 300 RF with wall mounting bracket Z011 412q-R Wireless outside temperature sensor 7455 213q-T Wireless repeater 7456 538wI Radio clock receiver 7450 563ePeQ

eW

eE

EA1 extension:1 analogue input (0 to 10 V)– Specifying the set boiler water temperature3 digital inputs– External changeover of the operating status for heating circuits 1 to 3, may be switched individually

(with weather-compensated control unit)– External blocking with central fault message– Fault messages– Brief operation of DHW circulation pump (with weather-compensated control unit)1 switching output (floating changeover contact)– Switching a feed pump to a substation– Signalling reduced mode for a heating circuit

7452 091

eReTeZeU

External hook-ups for weather-compensated control units– External demand– External changeover of stepped/modulating burners– External blocking/mixer close– External operating program changeover/mixer open

On site

rP KM BUS distributor, for several KM BUS subscribers 7415 028 KM BUS subscribers:

– EA1 extension– Vitotrol 200A, 300A– Wireless base station

See Viessmann pricelist

rQ LON communication module for communication with the following components:Vitotronic 200-H (for regulating additional heating circuits)

7172 173

rW Vitocom 100, type GSM2 Z011 396 / Z011 388rE Vitocom 100, type LAN1 with communication module Z011 224rR Vitocom 200, type LAN2 with communication module Z011 390rZ Vitocom 300, type LAN3 with LON communication module Z011 399

Boiler, ≤ 20,000 kW (cont.)

System examples VIESMANN 33

5822

471

GB

2

Page 31: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Electrical installation scheme

Main PCB 230 V

ZP

230

V/ 5

0 H

z

12

151

90

41

150

156

156

40

50

29

20 A1

52 A1

21

28

UPSB 11

214

4

4

SDB

SDB

WB

90

414

7

145

3

3

230 V/ 50 Hz

S

722

23

24

25

BP 5

40

145

44

30

40

PCB ME

Main PCB

A1 6

3 GW2B

N

L

L

N

L

N

L

N

L

N

N

L

N

L

NM1~

L

N

M1~

1

32

P

P

M1~

M1~

ID: 4605068_1404_07

Boiler, ≤ 20,000 kW (cont.)

34 VIESMANN System examples

2

5822

471

GB

Page 32: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Main PCB LV connections

Low

vol

tage

STS

1

146

143

15 12

145

145

LON

AGS

349

T1

3/2 12

KTS

5B

5A

17B

17A

145

ATS

145

145

40

40A

157

0-10V

145

L

N

34

DE3

145

DE2

DE1

156

1234

Main PCB

EA1

KM BUS distributor

12

VTS M22 M2

12

VTS M32 M3

20 M2

20 M3

52 M2

52 M3

M2

M3

156

230

V/5

0 H

z

HKP M2

HCP M3

40

PCB ME

GW2B

KM BUS

/ /

/ /

T2

1

32

1

32

1

32

1

32

L

N

S

12

12

12

1234

1234

L

N

L

N

N

N

M1~

M1~

M1~

M1~

N

L

12

1

32

1

32

3

3435

26

8

10

2

28

4

21

41 43 44

14

18

15

19

16

20

3

40

30

3

33

31

32

27 42 100

3637

46

32

32

7

ID: 4605068_1404_07

Boiler, ≤ 20,000 kW (cont.)

System examples VIESMANN 35

5822

471

GB

2

Page 33: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

2.7 Boiler with boiler circuit pump, low loss header and 3-way mixing valve for returntemperature raising

ID: 4605386_1404_04

ApplicationsFor example an older system or systems in commercial nurseries, aswell as systems where the hydraulic conditions cannot be clearlydefined and/or systems where downstream heating circuits cannot becontrolled.

Main components

Boiler system with:■ Vitoplex 200 or 300

orVitorond 200orVitomax 100-LW, 200-LW or 300-LT

■ Vitotronic 300, type GW2B■ 3-way mixing valve for raising the return temperature■ Low loss header

Function descriptionReturn temperature sensor T1 9 proportionally closes 3-way mixingvalve 8 in the primary circuit return to safeguard the boiler protectionif the actual temperature falls below the required minimum return tem-perature.

The flow temperature is controlled by temperature sensor 7 in lowloss header 6.Boiler and downstream heating circuits are hydraulically linked.The boiler is protected by a proportional raising of the return temper-ature.The boiler is protected against return temperatures that are too low,independently of downstream heating circuits.

NoteSize boiler circuit pump qP for the boiler so that its flow rate is at leastequal to the max. total heating circuit flow rate.Recommendation: 110 %Observe the corresponding pressure drops of the respective heat gen-erators when sizing pumps.

DHW heatingThe DHW is heated up when the actual temperature falls below theset DHW temperature at cylinder temperature sensor qI, subject tocylinder heating being enabled by the time switch. The boiler watertemperature is raised to the set cylinder temperature +20 K and thecirculation pump for cylinder heating wP is started if the boiler watertemperature is 7 K above the cylinder temperature.If the heating circuits are regulated via the Vitotronic 2, heating circuitpumps M2 and M3 wU and eQ are switched off and mixers M2 and M3wI and eW are closed, subject to priority being enabled.

Heating modeThe flow temperature of heating circuits wT and wO can be operatedin modulating mode subject to the outside temperature, depending onthe heating curve set in control unit 2. The boiler water temperatureis regulated 8 K higher than the set flow temperature.

NoteThis scheme is a general system example. Refer to the relevanttechnical guides when designing for specific applications.

Required codes

ID: 4605386_1404_04Group Code Function"General" "00:8" Two heating circuits with mixer M2 (heating circuit 2) and M3 (heating

circuit 3) with DHW heating"General" "4d:2" Boiler circuit pump"General" "52:1" With flow temperature sensor for low loss header (automatic recogni-

tion)"Boiler" "02:1"

or "02:2"

Two-stage burner (delivered condition)

Modulating burner"Boiler" "0C:1" Constant return temperature control

Boiler, ≤ 20,000 kW (cont.)

36 VIESMANN System examples

2

5822

471

GB

Page 34: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Hydraulic installation scheme ID: 4605386_1404_04

6

KW

WW

--2/5A--

17

18

19

25

26

27

28

29

30

31

32

--2/2M2--

--2/20M2--

--2/52M2--

7--2/9--

20--2/21--

--2/28--

8

9

10

5

--2/29--

--2/52A1--

--2/17A--

--2/

1--

2--

230V

----

21--

--28

--

--52

M2-

---

20M

2--

--52

M3-

---

20M

3--

--2M

3--

--2M

2--

--5A

--

--3/

2--

--1-

-

--K

M B

US

--

--29

----

17A

--

1

--52

A1-

-

--2/2M3--

--2/20M3--

--2/52M3--

--2/

2/3-

-

--9-

-

4

GW2B

Note: This scheme is a general example without shut-off valves or safety equipment. This does not replace the need for on-site engineering.

Equipment required

ID: 4605386_1404_04Pos. Title Part no.1 Boiler I See Viessmann pricelist2 Vitotronic 300, type GW2B Standard delivery pos. 14 Boiler water temperature sensor KTS Standard delivery pos. 25 Outside temperature sensor ATS Standard delivery pos. 26 Low loss header See Vitoset pricelist7 Flow temperature sensor for low loss header 7438 7028 3-way mixing valve On site9 Return temperature sensor – Contact temperature sensor

or7426 463

– Immersion temperature sensorSensor well R1/2 x 100Sensor well R1/2 x 150

7438 7027816 0357817 326

qP Boiler circuit pump On siteqU DHW cylinder See Viessmann pricelistqI Cylinder temperature sensor STS Standard delivery pos. 2qO DHW circulation pump ZP See Vitoset pricelistwP Circulation pump for cylinder heating UPSB See Viessmann pricelist

Boiler, ≤ 20,000 kW (cont.)

System examples VIESMANN 37

5822

471

GB

2

Page 35: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

ID: 4605386_1404_04Pos. Title Part no.wT Heating circuit II wU Heating circuit pump M2 (heating circuit II) On sitewZ Contact temperature sensor

or7426 463

Immersion temperature sensor (incl. sensor well)–Sensor well R1/2 x 100–Sensor well R1/2 x 150and

7438 7027816 0357817 326

wI Mixer motor M2 for flanged mixer and plugandMixer

See Viessmann pricelist

wO Heating circuit III eQ Heating circuit pump M3 (heating circuit III) On siteeP Contact temperature sensor

or7426 463

Immersion temperature sensor (incl. sensor well)–Sensor well R1/2 x 100–Sensor well R1/2 x 150and

7438 7027816 0357817 326

eW Mixer motor M3 for flanged mixer and plugandMixer

See Viessmann pricelist

Accessories boiler I wQ Plug-in adaptor for external safety equipment 7164 404wW Minimum pressure limiter SDB 7438 030wE Maximum pressure limiter SDB 7438 025wR Water level limiter (low water indicator) WB See Viessmann pricelisteU Flue gas temperature sensor AGS 7452 531 Accessories eO Central fault message facility On siterP KM BUS distributor, for several KM BUS subscribers

– EA1 extension– Vitotrol 200A, 300A– Wireless base station

7415 028

rQ Vitotrol 200Aor

Z008 341

Vitotrol 300A Z008 342 As an alternative to hardwired remote control units, the following wireless accessory may be usedq-P Wireless base station Z011 413q-Q Vitotrol 200 RF Z011 219q-W Vitotrol 300 RF with table-top dock Z011 410q-E Vitotrol 300 RF with wall mounting bracket Z011 412q-R Wireless outside temperature sensor 7455 213q-T Wireless repeater 7456 538tP EA1 extension 7452 091tQ Switching output (floating changeover contact)

– Switching a feed pump to a substation – Signalling reduced mode for a heating circuit

tW 1 analogue input (0 to 10 V)– Specifying the set boiler water temperature

tE 3 digital inputs– External changeover of the operating status for heating circuits 1 to 3, may be switched individually(with weather-compensated control unit)– External blocking with central fault message– fault message– Brief operation of the DHW circulation pump

tRtTtZtU

External hook-ups for weather-compensated control units– External demand– External changeover of stepped/modulating burners– External blocking/mixer close– External operating program changeover/mixer open

On site

eI Radio clock receiver 7450 563tI LON communication module for communication with the following components:

Vitotronic 200-H (for regulating additional heating circuits)7172 173

uP Vitocom 100, type GSM2 Z011 396 / Z011 388uQ Vitocom 100, type LAN1 with communication module Z011 224uW Vitocom 200, type LAN2 with communication module Z011 390uR Vitocom 300, type LAN3 with LON communication module Z011 399

Boiler, ≤ 20,000 kW (cont.)

38 VIESMANN System examples

2

5822

471

GB

Page 36: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Electrical installation scheme

ZP

230

V/ 5

0 H

z

19

151

90

41

150

156

156

40

50

29

20 A1

52 A1

21

28

UPSB 20

230 V/ 50 Hz

KKP 10

45

Main PCB A3

8

214

4

4

SDB

SDB

WB145

2

722

23

2414550

40

90

41

7

S 39

4

2 GW2B

N

L

L

N

L

N

L

N

L

N

N

L

N

L

NM1~

L

N

M1~

M1~

M1~

1

32

P

P

ID: 4605386_1404_04

Boiler, ≤ 20,000 kW (cont.)

System examples VIESMANN 39

5822

471

GB

2

Page 37: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Low

vol

tage

STS

1

146

143

15 12

145

145

LON

AGS

349

T1

3/2 12

KTS

5B

5A

17B

17A

145

ATS

145

145

40

40A

157

0-10V

145

L

N

34

DE3

145

DE2

DE1

156

1234

Main PCB

EA1

KM BUS distributor

12

VTS22 M2

12

VTS32 M3

20 M2

20 M3

52 M2

52 M3

M2

M3

230

V/5

0 H

z

HKP2

HKP3

40

PCB ME

GW2B

KM BUS

/ /

/ /

VTS

1

32

1

32

1

32

1

32

L

N

S

12

12

12

1234

1234

L

N

L

N

N

N

M1~

M1~

M1~

M1~

N

L

12

1

32

1

32

2

5455

37

9

18

4

38

5

21

58 71 72

26

30

27

31

28

32

40

50

2

51

52

53

41 70 100

5657

74

53

53

7

ID: 4605386_1404_04

Boiler, ≤ 20,000 kW (cont.)

40 VIESMANN System examples

2

5822

471

GB

Page 38: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

2.8 Multi boiler system: Boilers with Therm-Control

ID: 4605069_1404_07

ApplicationsHeating systems with distributor installed close to the boiler. The boilerwater flow rate will be reduced via the motorised control valve.

Main components

Multi boiler system with:■ Vitoplex 200 (up to 560 kW)

orVitoplex 300orVitoradial 300-TorVitorond 200 (125 to 270 kW)

■ Vitotronic 200-Hand– Vitotronic 100, type GC1B, for each boiler in a multi boiler system

andVitotronic 300-K, type MW1B; one required for the multi boiler sys-temor

– Vitotronic 100, type GC1B, for each boiler in a multi boiler systemandVitocontrol control panel with integral weather-compensated con-trol unit Vitotronic 300-K, type MW1B

■ Therm-Control for operating boilers without return temperature rais-ing facility

Function descriptionIf the actual temperature falls below the factory-set temperatures atTherm-Control temperature sensors 2 and qP, Therm-Control willregulate motorised butterfly valves 4 and qW or heating circuit controlunit(s) eP. In the start-up phase (e.g. during commissioning or after anight or weekend shutdown), the boiler water flow rate is proportionallyreduced.When using the Vitotronic 300-K (type MW1B) 7 or controlling theheating circuits via the Vitotronic 200-H eP connected to the boilercontrol unit, the flow rate should be reduced via heating circuit mixerswQ, wT and wO. No additional protective measures are required onsite.A minimum return temperature does not need to be maintained in con-junction with Therm-Control.Shunt pumps and/or boiler circuit pumps or costly mixing valves forraising the return boiler water temperature are not required.When using the Vitoradial 300-T in multi boiler systems, the circulationpump for the downstream flue gas heat exchanger is connected atplug-in connection 20 A1 of the Vitotronic 100 (type GC1B).

DHW heatingThe DHW is heated up when the actual temperature falls below theset DHW temperature at cylinder temperature sensor qT, subject tocylinder heating being enabled by the time switch. The boiler watertemperature is raised to the set cylinder temperature +20 K and thecirculation pump for cylinder heating qZ is started if the boiler watertemperature is 7 K above the cylinder temperature.If the heating circuits are regulated via the Vitotronic, heating circuitpumps M2 and M3 are switched off, and mixers M2 and M3 are closed,subject to priority being enabled.

Heating modeDepending on the control unit used, the flow temperature of the heatingcircuits can be operated in modulating mode, subject to the outsidetemperature. The boiler water temperature is regulated 8 K higher thanthe set flow temperature.

NoteThis scheme is a general system example. Refer to the relevanttechnical guides when designing for specific applications.

Required codes

ID: 4605069_1404_07Service address Vitotronic 300-K, type MW1B / pos. 7Group Code Function"General" "00:8" Two heating circuits with mixer M2 (heating circuit 2) and M3 (heating

circuit 3) with DHW heating"Cascade" "35:2" Number of connected heat generators"Cascade" "38:1" Changeover of lead boiler (monthly)Service address Vitotronic 100, type GC1B / pos. 8"Boiler" "01:2" Multi boiler system with cascade control via LON"Boiler" "02:1"

or "02:2"

Two-stage burner (delivered condition)

Modulating burnerService address Vitotronic 100, type GC1B / pos. qE"General" "77:2" LON subscriber number"Boiler" "01:2" Multi boiler system with cascade control via LON"Boiler" "02:1"

or "02:2"

Two-stage burner (delivered condition)

Modulating burner"Boiler" "07:2" Consecutive boiler number in multi boiler systemsService address Vitotronic 200-H, type HK1B / pos. eP"General" "81:3" Control unit receives the time"General" "97:1" Control unit receives outside temperature

Boiler, ≤ 20,000 kW (cont.)

System examples VIESMANN 41

5822

471

GB

2

Page 39: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Hydraulic installation scheme ID: 4605069_1404_07

KW

WW

--7/5A--

14

15

17

30

18

19

20

21

22

23

24

25

26

27

28

29

--7/2M2--

--7/20M2--

--7/52M2--

--7/2M3--

--7/20M3--

-30/3/2M1-

-30/20M1-

-30/52M1-

--23

0V--

--52

M1-

---

20M

1--

--3/

2M1-

-

16--7/21--

--7/28--

3

1 9

6 --8/

3/2-

-

--7/

1--

--LO

N--

7--

230V

----

21--

--28

----

52M

2--

--20

M2-

---

52M

3--

--20

M3-

-

--2M

3--

--2M

2--

--5A

----

3/2-

---

1--

--K

M-B

us--

--LO

N--

13

--23

0V--

--52

A1-

-

--LO

N--

--LO

N--

--17

A--

--3/

2--

--7/3/2-- 5

--7/52M3--

2

--8/

17A

--

11--13

/3/2

--

10

--13

/17A

--

--3/

52A

1--

--8/

52A

1--

--13

/52A

1--

4 12

HK1BMW1B

GC1B8

--23

0V--

--52

A1-

-

--LO

N--

--LO

N--

--17

A--

--3/

2--

GC1B

Note: This scheme is a general example without shut-off valves or safety equipment. This does not replace the need for on-site engineering.

Equipment required

ID: 4605069_1404_07Pos. Title Part no.1 Boiler I See Viessmann pricelist2 Therm-Control temperature sensor Standard delivery pos. 13 Boiler water temperature sensor KTS Standard delivery pos. 84 Motorised butterfly valve See Vitoset pricelist5 Flow temperature sensor Standard delivery pos. 76 Outside temperature sensor ATS Standard delivery pos. 77 Vitotronic 300-K, type MW1B Standard delivery pos. 18 Vitotronic 100, type GC1B Standard delivery pos. 1

Boiler, ≤ 20,000 kW (cont.)

42 VIESMANN System examples

2

5822

471

GB

Page 40: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

ID: 4605069_1404_07Pos. Title Part no.9 Boiler II See Viessmann pricelistqP Therm-Control temperature sensor Standard delivery pos. 9qQ Boiler water temperature sensor KTS Standard delivery pos. 13qW Motorised butterfly valve See Vitoset pricelistqE Vitotronic 100, type GC1B Standard delivery pos. 9qR DHW cylinder See Viessmann pricelistqT Cylinder temperature sensor STS Standard delivery pos. 7qZ Circulation pump for cylinder heating UPSB See Viessmann pricelistqU DHW circulation pump ZP See Vitoset pricelistqI Heating circuit I On sitewP Heating circuit pump M2 (heating circuit I) On site Extension kit for one heating circuit with mixer comprising 7441 998qO Flow temperature sensor M2 (heating circuit I)

and

wQ Mixer motor M2 (heating circuit I) or qO – Contact temperature sensor

or7426 463

– Immersion temperature sensor(see pricelist for further heating circuit control units)

7438 702

and wQ Mixer motor for flanged mixer M2 (heating circuit I) See Viessmann pricelistwW Heating circuit II On sitewR Heating circuit pump M3 (heating circuit II) On site Extension kit for one heating circuit with mixer comprising 7441 998wE Flow temperature sensor M3 (heating circuit II)

and

wT Mixer motor M3 (heating circuit II) or wE – Contact temperature sensor

or7426 463

– Immersion temperature sensor(see pricelist for further heating circuit control units)

7438 702

and wT Mixer motor for flanged mixer M3 (heating circuit II) See Viessmann pricelistwZ Heating circuit III On sitewI Heating circuit pump M1 (heating circuit III) On site Extension kit for one heating circuit with mixer comprising 7441 998wU Flow temperature sensor M1 (heating circuit III)

and

wO Mixer motor M1 (heating circuit III) or wU – Contact temperature sensor

or7426 463

– Immersion temperature sensor(see pricelist for further heating circuit control units)

7438 702

and wO Mixer motor for flanged mixer M1 (heating circuit III) See Viessmann pricelisteP Vitotronic 200-H, type HK1B

andZ009 462

uP LON communication module for pos. 30and

7172 173

LON cable 7143 495eQ Outside temperature sensor ATS (ATS value can be accepted by the Vitotronic 300-K) Standard delivery pos. 30 Boiler accessories eR Plug-in adaptor for external safety equipment 7164 404eT Minimum pressure limiter SDB 7438 030eZ Maximum pressure switch or limiter SDB 7438 025eU Water level limiter (low water indicator) WB See Viessmann pricelisteO Flue gas temperature sensor AGS 7452 531zR - External changeover of stepped/modulating burners zI - External blocking/boiler zO - Start boiler as the last one in the sequence

Boiler, ≤ 20,000 kW (cont.)

System examples VIESMANN 43

5822

471

GB

2

Page 41: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

ID: 4605069_1404_07Pos. Title Part no. Accessories eE Vitotrol 200A

orZ008 341

Vitotrol 300A Z008 342 As an alternative to hardwired remote control units, the following wireless accessory may be usedq-P Wireless base station Z011 413q-Q Vitotrol 200 RF Z011 219q-W Vitotrol 300 RF with table-top dock Z011 410q-E Vitotrol 300 RF with wall mounting bracket Z011 412q-R Wireless outside temperature sensor 7455 213q-T Wireless repeater 7456 538eI Central fault message system S On siterP ON/OFF switch On siterU Radio clock receiver 7450 563tP KM BUS distributor, for several KM BUS subscribers

– EA1 extension– Vitotrol 200A, 300A– Wireless base station

7415 028

zP EA1 extension 7452 091zQ 1 switching output (floating changeover contact)

- Switching a feed pump to a substation- Signalling reduced mode for one heating circuit

zW 1 analogue input (0 – 10 V)- Set flow temperature default

zE 3 digital inputs- External changeover of operating state for heating circuits 1 to 3, may be switched individually - External blocking with central fault message facility- Fault messages- Brief operation of the DHW circulation pump

External hook-ups On sitezT - External blocking/mixer close zZ - External demand zU - External operating program changeover/mixer open uP LON communication module (part of standard delivery for Vitotronic 300-K) 7172 173uQ Vitocom 300, type LAN3 Z011 555

Boiler, ≤ 20,000 kW (cont.)

44 VIESMANN System examples

2

5822

471

GB

Page 42: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Electrical installation scheme

LP A2

1

146

143

145

145

LON

3/2 12

5B

5A

17B

17A 1234

Low

vol

tage

12 M3

1M22

2 M3

M2

LP A1

2

STS

VTS

ATS

Low

vol

tage

ZP

230

V/5

0 H

z

156

40

50

29

20 A1

52 A1

21

28

UPSB

230 V/50 Hz

LP A3

S

40

M3

M2

M3

M220

52

52

20 M3

M2

M3

M2

230

V/5

0 H

z40 156

145

145

40

40A

157

0-10V

145

34

DE3

145

DE2

DE1

EA1

KM BUS distributor

230 V/50 Hz

N

L

MW1B MW1B

KM BUS

LON / / /

/

1

32

1

32

1

32

1234

1234

L

N

L

N

L

N

L

N

N

L

N

L

NM1~

M1~

L

N

N

M1~

M1~

NM1~

L

N

M1~

1

32

L

N

S

12

12

12

N

L

N

L

1

32

1

32

12

7

7 40

38

16

17

66

6567

15

5

47

6

708 13

7

60

50

33

63

62

61

40

7

25

21

24

20

23

19

30 71

63

63

100

ID: 4605069_1404_07

Boiler, ≤ 20,000 kW (cont.)

System examples VIESMANN 45

5822

471

GB

2

Page 43: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

230

V/5

0 H

z

151

90

41

150

156

156

40

50

29

20 A1

52 A1

21

28

230 V/50 Hz

LP A3

M1~

4

4

4

SDB

SDB

WB145

7145

90

41

7

S

LP A2

Low

vol

tage T1

KTS

AGS

1

146

143

15 12

145

145

LON

3/2 12

5B

5A

17B

17A 1234

4

/

/

/

/

/ GC1B

145

LON / / / /

L

N

L

N

L

N

L

N

N

L

N

L

N

L

N

1

32

P

P

1

32

1

32

1

32

1234

1234

N

L

8 13

34

8 13

40

35

36

37

38

4 12

64

6968

39

2 10

3 11

34

7 870

13 30 71

ID: 4605069_1404_07

Boiler, ≤ 20,000 kW (cont.)

46 VIESMANN System examples

2

5822

471

GB

Page 44: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

230

V/5

0 H

z

156

40

50

29

20 M1

52 M1

21

28

230 V/50 Hz

LP A3

M1M1~

S

LP A2

Low

vol

tage

M1

1

146

143

145

145

LON

3/2 12

5B

5A

17B

17A 1234

M1

ATS

HK1B

LON

145 /

/ / /

L

N

L

N

L

N

L

N

N

L

N

L

N

1

32

1

32

1

32

1234

1234

M1~

N

L

30

40

38

28

29

27

31

33

7 8

100

7013 71

ID: 4605069_1404_07

Boiler, ≤ 20,000 kW (cont.)

System examples VIESMANN 47

5822

471

GB

2

Page 45: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

2.9 Multi boiler system: Boilers with a shunt pump for every boiler for return temperatureraising

ID: 4605070_1404_07

ApplicationsHeating systems with distributor installed close to the boiler. The boilerwater flow rate is reduced via the motorised butterfly valves.

Main components

Multi boiler system with:■ Vitoplex 200 or 300

orVitorond 200orVitomax 100-LW, 200-LW or 300-LT

■ Vitotronic 200-Hand– Vitotronic 100, type GC1B, for each boiler in a multi boiler system

andVitotronic 300-K, type MW1B; one required for the multi boiler sys-temor

– Vitotronic 100, type GC1B, for each boiler in a multi boiler systemandVitocontrol control panel with integral weather-compensated con-trol unit Vitotronic 300-K, type MW1B

■ Shunt pumps

Function descriptionTemperature sensors T2 8 and qT start shunt pumps 9 and qZ ifthe actual temperature falls below the required minimum return tem-perature. If this does not achieve the required minimum return tem-perature, the flow rate is proportionally reduced via temperature sen-sors T1 qP and qU, via butterfly valves 7 and qR or via heating circuitcontrol units 4 and eR.Size shunt pumps 9 and qZ to approx. 30 % of the total boiler flowrate.When using the Vitotronic 300-K 4 or controlling the heating circuitsvia the Vitotronic 200-H eR connected to the boiler control unit, theflow rate should be reduced via the heating circuit mixers. No additionalprotective measures are required on site.No boiler circuit pump or costly mixing valve for raising the return tem-perature is required.

DHW heatingThe DHW is heated up when the actual temperature falls below theset DHW temperature at cylinder temperature sensor qO, subject tocylinder heating being enabled by the time switch. The boiler watertemperature is raised to the set cylinder temperature +20 K and thecirculation pump for cylinder heating wQ is started if the boiler watertemperature is 7 K above the cylinder temperature.If the heating circuits are regulated via the Vitotronic, heating circuitpumps M2 and M3 are switched off, and mixers M2 and M3 are closed,subject to priority being enabled.

Heating modeDepending on the control unit used, the flow temperature of the heatingcircuits can be operated in modulating mode, subject to the outsidetemperature. The boiler water temperature is regulated 8 K higher thanthe set flow temperature.

NoteThis scheme is a general system example. Refer to the relevanttechnical guides when designing for specific applications.

Required codes

ID: 4605070_1404_07Service address Vitotronic 300-K, type MW1B / pos. 4Group Code Function"General" "00:8" Two heating circuits with mixer M2 (heating circuit 2) and M3 (heating

circuit 3) with DHW heating"Cascade" "35:2" Number of connected heat generators"Cascade" "38:1" Changeover of lead boiler (monthly)Service address Vitotronic 100, type GC1B / pos. 3"Boiler" "01:2" Multi boiler system with cascade control via LON"Boiler" "02:1"

or "02:2"

Two-stage burner (delivered condition)

Modulating burnerService address Vitotronic 100, type GC1B / pos. qE"General" "77:2" LON subscriber number"Boiler" "01:2" Multi boiler system with cascade control via LON"Boiler" "02:1"

or "02:2"

Two-stage burner (delivered condition)

Modulating burner"Boiler" "07:2" Consecutive boiler number in multi boiler systemsService address Vitotronic 200-H, type HK1B / pos. eR"General" "81:3" Control unit receives the time"General" "97:1" Control unit receives outside temperature

Boiler, ≤ 20,000 kW (cont.)

48 VIESMANN System examples

2

5822

471

GB

Page 46: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Hydraulic installation scheme ID: 4605070_1404_07

KW

WW

--4/5A--

18

19

20

34

22

23

24

25

26

27

28

29

30

31

32

33

--4/2M2--

--4/20M2--

--4/52M2--

--4/2M3--

--4/20M3--

-34/3/2M1-

-34/20M1-

-34/52M1-

--23

0V--

--52

M1-

---

20M

1--

--3/

2M1-

-

21--4/21--

--4/28--

102 1712

11

5

--3/17A--

--3/

3/2-

-

--4/

1--

--13/17A--

--13

/3/2

--

--LO

N--

4

--23

0V--

--21

----

28--

--52

M2-

---

20M

2--

--52

M3-

---

20M

3--

--2M

3--

--2M

2--

--5A

----

3/2-

---

1--

--K

M-B

us--

--LO

N--

13

--23

0V--

--52

A1-

-

--LO

N--

--LO

N--

--17

A--

--3/

2--

--4/3/2-- 6

--3/

52A

1--

--13

/52A

1--

7 14

--4/52M3--

--3/

29--

9

--3/17B--8

--29

--

--13/17B--15

--17

B--

--13

/29-

-

16

GC1B

1

3

--23

0V--

--52

A1-

-

--LO

N--

--LO

N--

--17

A--

--3/

2--

--29

----

17B

--

GC1B

HK1BMW1B

Note: This scheme is a general example without shut-off valves or safety equipment. This does not replace the need for on-site engineering.

Boiler, ≤ 20,000 kW (cont.)

System examples VIESMANN 49

5822

471

GB

2

Page 47: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Equipment required

ID: 4605070_1404_07Pos. Title Part no.1 Boiler I See Viessmann pricelist2 Boiler water temperature sensor KTS Standard delivery pos. 33 Vitotronic 100, type GC1B Standard delivery pos. 14 Vitotronic 300-K, type MW1B Standard delivery pos. 15 Outside temperature sensor ATS Standard delivery pos. 46 Flow temperature sensor – Contact temperature sensor

or7426 463

– Immersion temperature sensor 7438 7027 Motorised butterfly valve See Vitoset pricelist8 Temperature sensor T2 in conjunction with the Vitotronic 100, type GC1B – Contact temperature sensor

or7426 463

– Immersion temperature sensor 7438 7029 Shunt pump On siteqP Temperature sensor T1 in conjunction with the Vitotronic 100, type GC1B – Contact temperature sensor

or7426 463

– Immersion temperature sensor 7438 702qQ Boiler II See Viessmann pricelistqW Boiler water temperature sensor KTS Standard delivery pos. 13qE Vitotronic 100, type GC1B Standard delivery pos. 11qR Motorised butterfly valve See Vitoset pricelistqT Temperature sensor T2 in conjunction with the Vitotronic 100, type GC1B – Contact temperature sensor

or7426 463

– Immersion temperature sensor 7438 702qZ Shunt pump On siteqU Temperature sensor T1 in conjunction with the Vitotronic 100, type GC1B – Contact temperature sensor

or7426 463

– Immersion temperature sensor 7438 702qI DHW cylinder See Viessmann pricelistqO Cylinder temperature sensor STS Standard delivery pos. 4wP DHW circulation pump ZP See Vitoset pricelistwQ Circulation pump for cylinder heating UPSB See Viessmann pricelistwW Heating circuit I wR Heating circuit pump M2 (heating circuit I) On site Extension kit for one heating circuit with mixer M2 (heating circuit I)

Components:7441 998

wE – Flow temperature sensor M2 (contact temperature sensor)and

wT – Mixer motor or wE Contact temperature sensor

or7426 463

Immersion temperature sensor and

7438 702

wT Mixer motor M2 for flanged mixer and plugandMixer

See Viessmann pricelist

wZ Heating circuit II wI Heating circuit pump M3 (heating circuit II) On site Extension kit for one heating circuit with mixer M2 (heating circuit II)

Components:7441 998

wU – Flow temperature sensor M2 (contact temperature sensor)and

wO – Mixer motor or wU Contact temperature sensor

or7426 463

Immersion temperature sensor and

7438 702

wO Mixer motor M2 for flanged mixer and plugandMixer

See Viessmann pricelist

Boiler, ≤ 20,000 kW (cont.)

50 VIESMANN System examples

2

5822

471

GB

Page 48: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

ID: 4605070_1404_07Pos. Title Part no.eP Heating circuit III eW Heating circuit pump M1 (heating circuit III) On site

Extension kit for one heating circuit with mixer comprising 7441 998eQ Flow temperature sensor M1 (heating circuit III)

and

eE Mixer motor M1 (heating circuit III) or

eQ– Contact temperature sensor

or7426 463

– Immersion temperature sensor(see pricelist for further heating circuit control units)

7438 702

and eE Mixer motor for flanged mixer M1 (heating circuit III) See Viessmann pricelisteR Vitotronic 200-H, type HK1B

andZ009 462

uP LON communication module for pos. 34and

7172 173

LON cable 7143 495eT Outside temperature sensor ATS (ATS value can be accepted by the Vitotronic 300-K) Standard delivery pos. 34 Boiler accessories eZ Plug-in adaptor for external safety equipment 7164 404eU Minimum pressure limiter SDB 7438 030eI Maximum pressure limiter SDB 7438 025eO Water level limiter (low water indicator) WB See Viessmann pricelistrQ Flue gas temperature sensor AGS 7452 531zR - External changeover of stepped/modulating burners zI - External blocking/boiler zO - Start boiler as the last one in the sequence System accessories rP ON/OFF switch On siterO Central fault message facility On sitetP Vitotrol 200A

orZ008 341

Vitotrol 300A Z008 342 As an alternative to hardwired remote control units, the following wireless accessory may be usedq-P Wireless base station Z011 413q-Q Vitotrol 200 RF Z011 219q-W Vitotrol 300 RF with table-top dock Z011 410q-E Vitotrol 300 RF with wall mounting bracket Z011 412q-R Wireless outside temperature sensor 7455 213q-T Wireless repeater 7456 538tQ Radio clock receiver 7450 563tE KM BUS distributor, for several KM BUS subscribers

– EA1 extension– Vitotrol 200A, 300A– Wireless base station

7415 028

zP EA1 extension 7452 091zQ 1 switching output (floating changeover contact)

- Switching a feed pump to a substation- Signalling reduced mode for one heating circuit

zW 1 analogue input (0 – 10 V)- Set flow temperature default

zE 3 digital inputs- External changeover of operating state for heating circuits 1 to 3, may be switched individually - External blocking with central fault message facility- Fault messages- Brief operation of the DHW circulation pump

External hook-ups On sitezT - External blocking/mixer close zZ - External demand zU - External operating program changeover/mixer open uP LON communication module (part of standard delivery for Vitotronic 300-K) 7172 173uQ Vitocom 300, type LAN3 Z011 555

Boiler, ≤ 20,000 kW (cont.)

System examples VIESMANN 51

5822

471

GB

2

Page 49: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Electrical installation scheme

LP A2

1

146

143

145

145

LON

3/2 12

5B

5A

17B

17A 1234

Low

vol

tage

12 M3

1M22

2 M3

M2

LP A1

2

STS

VTS

ATS

Low

vol

tage

ZP

230

V/5

0 H

z

156

40

50

29

20 A1

52 A1

21

28

UPSB

230 V/50 Hz

LP A3

S

40

M3

M2

M3

M220

52

52

20 M3

M2

M3

M2

230

V/5

0 H

z40 156

KM BUS145

145

40

40A

157

0-10V

145

34

DE3

145

DE2

DE1

EA1

KM BUS distributor

230 V/50 Hz

MW1B MW1B

LON / / /

/

1

32

1

32

1

32

1234

1234

L

N

L

N

L

N

L

N

N

L

N

L

NM1~

M1~

L

N

N

M1~

M1~

NM1~

L

N

M1~

1

32

L

N

S

12

12

12

N

L

N

L

N

L

1

32

1

32

12

4

4 40

49

21

20

66

6567

19

6

51

5

703 13

53

60

4

23

27

24

28

25

29

4

40

61

62

63

50 100

34 71

63

63

ID: 4605070_1404_07

Boiler, ≤ 20,000 kW (cont.)

52 VIESMANN System examples

2

5822

471

GB

Page 50: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

230

V/5

0 H

z

151

90

41

150

156

156

40

50

29

20 A1

52 A1

21

28

LP A3

M1~

4

4

4

SDB

SDB

WB145

7145

90

41

7

S

LP A1

Low

vol

tage T1

KTS

AGS

1

146

143

15 12

145

145

LON

3/2 12

5B

5A

17B

17A 1234

4

/

/

/

T2 /

BP /

230 V/50 Hz

GC1B

145

LON

/

/

/ / / /

L

N

L

N

L

N

L

N

N

L

N

L

N

L

N

1

32

P

P

1

32

1

32

1

32

1234

1234

M1~

N

L

3 13

36

37

38

393 13

40

49

9 16

7 14

64

6968

41

8 15

10

2

36

4370

17

12

13 34 71

ID: 4605070_1404_07

Boiler, ≤ 20,000 kW (cont.)

System examples VIESMANN 53

5822

471

GB

2

Page 51: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

230

V/5

0 H

z

156

40

50

29

20 M1

52 M1

21

28

LP A3

M1M1~

S

LP A2

Low

vol

tage

M1

1

146

143

145

145

LON

3/2 12

5B

5A

17B

17A 1234

M1

230 V/50 Hz

ATS

HK1B

LON /

145 /

/ /

L

N

L

N

L

N

L

N

N

L

N

L

N

1

32

1

32

1

32

1234

1234

M1~

N

L

34

40

49

32

33

31

35

50

3 4

100

7013 71

ID: 4605070_1404_07

Boiler, ≤ 20,000 kW (cont.)

54 VIESMANN System examples

2

5822

471

GB

Page 52: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

2.10 Multi boiler system: Boilers with a common shunt pump for return temperature rais-ing

ID: 4605071_1404_07

ApplicationsHeating systems with distributor installed close to the boiler. The boilerwater flow rate must be able to be reduced via the heating circuits.

Main components

Multi boiler system with:■ Vitoplex 200 or 300

orVitomax 100-LW, 200-LW or 300-LT

■ Vitotronic 200-Hand– Vitotronic 100, type GC1B, for each boiler in a multi boiler system

andVitotronic 300-K, type MW1B; one required for the multi boiler sys-temor

– Vitotronic 100, type GC1B, for each boiler in a multi boiler systemandVitocontrol control panel with integral weather-compensated con-trol unit Vitotronic 300-K, type MW1B

■ Shunt pump

Function descriptionTemperature sensor T2 qT starts shunt pump qR if the actual tem-perature falls below the required minimum return temperature. If thisdoes not achieve the required minimum return temperature, the flowrate is reduced via temperature sensors T1 8 and qE, and via heatingcircuit control units 4 and eW.

Size shunt pump qR to approx. 30 % of the total boiler flow rate.The boiler is optimally protected when using the Vitotronic 300-K (typeMW1B) 4 or controlling the heating circuits via the Vitotronic 200-HeW connected to the boiler control unit. No additional protective meas-ures are required on site.If it is not possible to reduce the boiler water flow rate, e.g. in oldersystems, we recommend the sample applications with shunt pump forevery boiler, or with boiler circuit pump and 3-way mixing valve, or withboiler circuit pump, low loss header and 3-way mixing valve.No boiler circuit pump or costly mixing valve for raising the return tem-perature is required.

DHW heatingThe DHW is heated up when the actual temperature falls below theset DHW temperature at cylinder temperature sensor qU, subject tocylinder heating being enabled by the time switch. The boiler watertemperature is raised to the set cylinder temperature +20 K and thecirculation pump for cylinder heating qO is started if the boiler watertemperature is 7 K above the cylinder temperature.If the heating circuits are regulated via the Vitotronic, heating circuitpumps M2 and M3 are switched off, and mixers M2 and M3 are closed,subject to priority being enabled.

Heating modeDepending on the control unit used, the flow temperature of the heatingcircuits can be operated in modulating mode, subject to the outsidetemperature. The boiler water temperature is regulated 8 K higher thanthe set flow temperature.

NoteThis scheme is a general system example. Refer to the relevanttechnical guides when designing for specific applications.

Boiler, ≤ 20,000 kW (cont.)

System examples VIESMANN 55

5822

471

GB

2

Page 53: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Required codes

ID: 4605071_1404_07Service address Vitotronic 300-K, type MW1B / pos. 4Group Code Function"General" "00:8" Two heating circuits with mixer M2 (heating circuit 2) and M3 (heating

circuit 3) with DHW heating"Cascade" "35:2" Number of connected heat generators"Cascade" "38:1" Changeover of lead boiler (monthly)Service address Vitotronic 100, type GC1B / pos. 3"Boiler" "01:2" Multi boiler system with cascade control via LON"Boiler" "02:1"

or "02:2"

Two-stage burner (delivered condition)

Modulating burnerService address Vitotronic 100, type GC1B / pos. qQ"General" "77:2" LON subscriber number"Boiler" "01:2" Multi boiler system with cascade control via LON"Boiler" "02:1"

or "02:2"

Two-stage burner (delivered condition)

Modulating burner"Boiler" "07:2" Consecutive boiler number in multi boiler systemsService address Vitotronic 200-H, type HK1B / pos. eW"General" "81:3" Control unit receives the time"General" "97:1" Control unit receives outside temperature

Boiler, ≤ 20,000 kW (cont.)

56 VIESMANN System examples

2

5822

471

GB

Page 54: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Hydraulic installation scheme ID: 4605071_1404_07

KW

WW

--4/5A--

16

17

18

32

20

21

22

23

24

25

26

27

28

29

30

31

--4/2M2--

--4/20M2--

--4/52M2--

--4/2M3--

--4/20M3--

-32/3/2M1-

-32/20M1-

-32/52M1-

--23

0V--

--52

M1-

---

20M

1--

--3/

2M1-

-

19--4/21--

--4/28--

82 1310

9

5

--3/17A--

--3/

3/2-

-

--4/

1--

--11/17A--

--11

/3/2

--

--LO

N--

4

--23

0V--

--21

----

28--

--52

M2-

---

20M

2--

--52

M3-

---

20M

3--

--2M

3--

--2M

2--

--5A

----

3/2-

---

1--

--K

M B

US

----

LON

--

11

--23

0V--

--52

A1-

-

--LO

N--

--LO

N--

--17

A--

--3/

2--

--4/3/2-- 6

--4/29--14

--29

--

--3/

52A

1--

--11

/52A

1--

7 12

--4/52M3--

15--4/17B--

--17

B--

--

GC1B

1

3

--23

0V--

--52

A1-

-

--LO

N--

--LO

N--

--17

A--

--3/

2--

GC1B

HK1BMW1B

Note: This scheme is a general example without shut-off valves or safety equipment. This does not replace the need for on-site engineering.

Boiler, ≤ 20,000 kW (cont.)

System examples VIESMANN 57

5822

471

GB

2

Page 55: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Equipment required

ID: 4605071_1404_07Pos. Title Part no.1 Boiler I See Viessmann pricelist2 Boiler water temperature sensor KTS Standard delivery pos. 33 Vitotronic 100, type GC1B Standard delivery pos. 14 Vitotronic 300-K Standard delivery pos. 15 Outside temperature sensor ATS Standard delivery pos. 46 Flow temperature sensor – Contact temperature sensor

or7426 463

– Immersion temperature sensor 7438 7027 Motorised butterfly valve See Vitoset pricelist8 Temperature sensor T1 in conjunction with the Vitotronic 100, type GC1B – Contact temperature sensor

or7426 463

– Immersion temperature sensor 7438 7029 Boiler II See Viessmann pricelistqP Boiler water temperature sensor KTS Standard delivery pos. 13qQ Vitotronic 100, type GC1B Standard delivery pos. 11qW Motorised butterfly valve See Vitoset pricelistqE Temperature sensor T1 in conjunction with the Vitotronic 100, type GC1B – Contact temperature sensor

or7426 463

– Immersion temperature sensor 7438 7021+9 Boilers I + II qR Shunt pump BP On siteqT Temperature sensor T2 in conjunction with the Vitotronic 100, type GC1B – Contact temperature sensor

or7426 463

– Immersion temperature sensor 7438 702qZ DHW cylinder See Viessmann pricelistqU Cylinder temperature sensor STS Standard delivery pos. 4qI DHW circulation pump ZP See Vitoset pricelistqO Circulation pump for cylinder heating UPSB See Vitoset pricelistwP Heating circuit I wW Heating circuit pump M2 (heating circuit I) On site Extension kit for one heating circuit with mixer M2 (heating circuit I)

Components:7441 998

wQ – Flow temperature sensor M2 (contact temperature sensor)and

wE – Mixer motor or wQ Contact temperature sensor

or7426 463

Immersion temperature sensor and

7438 702

wE Mixer motor M2 for flanged mixer and plugandMixer

See Viessmann pricelist

wR Heating circuit II wZ Heating circuit pump M3 (heating circuit II) On site Extension kit for one heating circuit with mixer M2 (heating circuit II)

Components:7441 998

wT – Flow temperature sensor M2 (contact temperature sensor)and

wU – Mixer motor or wT Contact temperature sensor

or7426 463

Immersion temperature sensor and

7438 702

wU Mixer motor M2 for flanged mixer and plugandMixer

See Viessmann pricelist

Boiler, ≤ 20,000 kW (cont.)

58 VIESMANN System examples

2

5822

471

GB

Page 56: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

ID: 4605071_1404_07Pos. Title Part no.wI Heating circuit III eP Heating circuit pump M1 (heating circuit III) On site

Extension kit for one heating circuit with mixer comprising 7441 998wO Flow temperature sensor M1 (heating circuit III)

and

eQ Mixer motor M1 (heating circuit III) or – Contact temperature sensor

or7426 463

wO – Immersion temperature sensor 7438 702 and eQ Mixer motor for flanged mixer M1 (heating circuit III) See Viessmann pricelisteW Vitotronic 200-H, type HK1B

andZ009 462

LON communication module for pos. 32and

7172 173

LON cable 7143 495eE Outside temperature sensor ATS (ATS value can be accepted by the Vitotronic 300-K) Standard delivery pos. 32 Boiler accessories eR Plug-in adaptor for external safety equipment 7164 404eT Minimum pressure limiter SDB 7438 030eZ Maximum pressure limiter SDB 7438 025eU Water level limiter (low water indicator) WB See Viessmann pricelisteI Flue gas temperature sensor AGS 7452 531zR - External changeover of stepped/modulating burners zI - External blocking/boiler zO - Start boiler as the last one in the sequence Accessories rP ON/OFF switch On siterT Central fault message facility On siterZ Vitotrol 200A

orZ008 341

Vitotrol 300A Z008 342 As an alternative to hardwired remote control units, the following wireless accessory may be used q-P Wireless base station Z011 413q-Q Vitotrol 200 RF Z011 219q-W Vitotrol 300 RF with table-top dock Z011 410q-E Vitotrol 300 RF with wall mounting bracket Z011 412q-R Wireless outside temperature sensor 7455 213q-T Wireless repeater 7456 538rU Radio clock receiver 7450 563rI Contactor relay 7814 681tP Power supply 230V/50 Hz On sitetE KM BUS distributor, for several KM BUS subscribers

– EA1 extension– Vitotrol 200A, 300A– Wireless base station

7415 028

zP EA1 extension 7452 091zQ 1 switching output (floating changeover contact)

- Switching a feed pump to a substation- Signalling reduced mode for one heating circuit

zW 1 analogue input (0 – 10 V)- Set flow temperature default

zE 3 digital inputs- External changeover of operating state for heating circuits 1 to 3, may be switched individually - External blocking with central fault message facility- Fault messages- Brief operation of the DHW circulation pump

External hook-ups On sitezT - External blocking/mixer close zZ - External demand zU - External operating program changeover/mixer open uP Vitocom 300, type LAN3 Z011 555

Boiler, ≤ 20,000 kW (cont.)

System examples VIESMANN 59

5822

471

GB

2

Page 57: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Electrical installation scheme

LP A2

1

146

143

145

145

LON

3/2 12

5B

5A

17B

17A 1234

Low

vol

tage

12 M3 25

1M2 212

2 M3

M2

LP A1

2

STS 17

VTS 6

5ATS

47

Low

vol

tage

ZP

230

V/5

0 H

z

4

18

156

40

50

29

20 A1

52 A1

21

28

UPSB 19

230 V/50 Hz

LP A3

S 45

4

40

4

M3 26

M2 23

M3 27

M2 2220

52

52

20 M3

M2

M3

M2

230

V/5

0 H

z

40 4156

3LON KM BUS

53

145

145

46

60

40

40A

157

0-10V 62

63

145

34

DE3

145

63DE2

63DE1

EA1

KM BUS distributor

61

BP 14

T2 15

40

65

66

67

70

230 V/50 Hz

40

MW1B MW1B

100

1

32

1

32

1

32

1234

1234

L

N

L

N

L

N

L

N

N

L

N

L

NM1~

M1~

L

N

N

M1~

M1~

NM1~

L

N

M1~

1

32

L

N

S

12

12

12

1

32

M1~

N

L

N

L

N

L

12

1

32

ID: 4605071_1404_07

Boiler, ≤ 20,000 kW (cont.)

60 VIESMANN System examples

2

5822

471

GB

Page 58: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

230

V/ 5

0 H

z

3

151

90

41

150

156

156

40

50

29

20 A1

52 A1

21

28

LP A3

M1~ 12

344

4

4

SDB

SDB

WB145

7145

90

41

7

S

LP A1

Low

vol

tage T1 13

KTS 10

AGS 44

1

146

143

1512

145

145

LON

3/2 12

5 B

5 A

17 B

17 A 1234

11

3 11

4

35

36

37

7

45

8

2

38

34145

LON 4 3 11 32

/

/

/

/

/ / /

/

/

230 V/ 50 Hz

40

69

64

68

GC1B

L

N

L

N

L

N

L

N

N

L

N

L

N

L

N

1

32

P

P

1

32

1

32

1

32

1234

1234

N

L

ID: 4605071_1404_07

Boiler, ≤ 20,000 kW (cont.)

System examples VIESMANN 61

5822

471

GB

2

Page 59: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

230

V/5

0 H

z

156

40

50

29

20 M1

52 M1

21

28

LP A3

M1M1~

S

LP A2

Low

vol

tage

M1

1

146

143

145

145

LON

3/2 12

5B

5A

17B

17A 1234

M1

LON

230 V/50 Hz

ATS

HK1B

145 /

/ / /

L

N

L

N

L

N

L

N

N

L

N

L

N

1

32

1

32

1

32

1234

1234

M1~

N

L

32

40

45

30

31

29

33

46

3 4

100

11 70

ID: 4605071_1404_07

Wiring diagramWiring for reducing the flow rate via temperature sensor T1 (9/qR) in heating systems with heating circuit control units that are not connectedto the boiler control unit via the LON BUS.

K3

K1 K2

L1NPE

1 2 ... n

A1 A1

K1

N L1

K2

N L1

ID: 4605071_1404_07

The cylinder temperature controller must be connected to the external control unit if an external cascade control unit is used.

Boiler, ≤ 20,000 kW (cont.)

62 VIESMANN System examples

2

5822

471

GB

Page 60: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

2.11 Multi boiler system: Boilers with distribution pump and low pressure distributor

ID: 4605072_1404_07

ApplicationsIf the distributor is located in a remote substation (> 20 m). The heattransfer to the heating circuits must be able to be reduced.

Main components

Multi boiler system with:■ Vitoplex 200 or 300

orVitorond 200orVitomax 100-LW, 200-LW or 300-LT

■ Vitotronic 200-Hand– Vitotronic 100, type GC1B, for each boiler in a multi boiler system

andVitotronic 300-K, type MW1B; one required for the multi boiler sys-temor

– Vitotronic 100, type GC1B, for each boiler in a multi boiler systemandVitocontrol control panel with integral weather-compensated con-trol unit Vitotronic 300-K, type MW1B

■ Distribution pump■ Low pressure distributor

Function descriptionTemperature sensors T1 9 and qR reduce or completely close mixerswW, wZ and eP if the actual temperature falls below the required min-imum return temperature.

Size distribution pump 6 to 110 % of the total heating system flowrate.Observe the corresponding pressure drops of the respective heat gen-erators when sizing pumps.When using the Vitotronic 300-K 4 or controlling the heating circuitsvia the Vitotronic 200-H eQ connected to the boiler control unit, theflow rate should be regulated via the heating circuit mixers. No addi-tional protective measures are required on site.If it is not possible to reduce the heat transfer to the heating circuits,e.g. in older systems, we recommend connecting the boilers in accord-ance with the sample applications with a shunt pump for every boiler,or with boiler circuit pump and 3-way mixing valve, or with boiler circuitpump, low loss header and 3-way mixing valve.No costly mixing valves for raising the return temperature arerequired.

DHW heatingThe DHW is heated up when the actual temperature falls below theset DHW temperature at cylinder temperature sensor qZ, subject tocylinder heating being enabled by the time switch. The boiler watertemperature is raised to the set cylinder temperature +20 K and thecirculation pump for cylinder heating qI is started if the boiler watertemperature is 7 K above the cylinder temperature.Heating circuit pumps M2 and M3 are switched off and mixers M2 andM3 are closed, subject to priority being enabled, if the heating circuitsare regulated via Vitotronic 4 and eQ.

Heating modeDepending on the control unit used, the flow temperature of the heatingcircuits can be operated in modulating mode, subject to the outsidetemperature. The boiler water temperature is regulated 8 K higher thanthe set flow temperature.

NoteThis scheme is a general system example. Refer to the relevanttechnical guides when designing for specific applications.

Boiler, ≤ 20,000 kW (cont.)

System examples VIESMANN 63

5822

471

GB

2

Page 61: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Required codes

ID: 4605072_1404_07Service address Vitotronic 300-K, type MW1B / pos. 4Group Code Function"General" "00:8" Two heating circuits with mixer M2 (heating circuit 2) and M3 (heating

circuit 3) with DHW heating"General" "4d:0" Distribution pump"Cascade" "35:2" Number of connected heat generators"Cascade" "38:1" Changeover of lead boiler (monthly)Service address Vitotronic 100, type GC1B / pos. 3"Boiler" "01:2" Multi boiler system with cascade control via LON"Boiler" "02:1"

or "02:2"

Two-stage burner (delivered condition)

Modulating burnerService address Vitotronic 100, type GC1B / pos. qW"General" "77:2" LON subscriber number"Boiler" "01:2" Multi boiler system with cascade control via LON"Boiler" "02:1"

or "02:2"

Two-stage burner (delivered condition)

Modulating burner"Boiler" "07:2" Consecutive boiler number in multi boiler systemsService address Vitotronic 200-H, type HK1B / pos. eQ"General" "81:3" Control unit receives the time"General" "97:1" Control unit receives outside temperature

Boiler, ≤ 20,000 kW (cont.)

64 VIESMANN System examples

2

5822

471

GB

Page 62: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Hydraulic installation scheme ID: 4605072_1404_07

KW

WW

--4/5A--

15

16

17

31

19

20

21

22

23

24

25

26

27

28

29

30

--4/2M2--

--4/20M2--

--4/52M2--

--4/2M3--

--4/20M3--

-31/3/2M1-

-31/20M1-

-31/52M1-

--23

0V--

--52

M1-

---

20M

1--

--3/

2M1-

-

18--4/21--

--4/28--

92 1411

10

5

--3/17A--

--3/

3/2-

-

--4/

1--

--12/17A--

--12

/3/2

--

--LO

N--

4

--23

0V--

--21

----

28--

--52

M2-

---

20M

2--

--52

M3-

---

20M

3--

--2M

3--

--2M

2--

--5A

----

3/2-

---

1--

--K

M-B

us--

--LO

N--

12

--23

0V--

--52

A1-

-

--LO

N--

--LO

N--

--17

A--

--3/

2--

--4/3/2--7--4/29--

6

--29

----

3/52

A1-

-

--12

/52A

1--

8 13

--4/52M3--

HK1BMW1B

GC1B

1

3

--23

0V--

--52

A1-

-

--LO

N--

--LO

N--

--17

A--

--3/

2--

GC1B

Note: This scheme is a general example without shut-off valves or safety equipment. This does not replace the need for on-site engineering.

Boiler, ≤ 20,000 kW (cont.)

System examples VIESMANN 65

5822

471

GB

2

Page 63: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Equipment required

ID: 4605072_1404_07Pos. Title Part no.1 Boiler I See Viessmann pricelist2 Boiler water temperature sensor KTS Standard delivery pos. 33 Vitotronic 100, type GC1B Standard delivery pos. 14 Vitotronic 300-K, type MW1B Standard delivery pos. 15 Outside temperature sensor ATS Standard delivery pos. 46 Distribution pump On site7 Flow temperature sensor – Contact temperature sensor

or7426 463

– Immersion temperature sensor 7438 7028 Motorised butterfly valve See Vitoset pricelist9 Temperature sensor T1 in conjunction with the Vitotronic 100, type GC1B – Contact temperature sensor

or7426 463

– Immersion temperature sensor 7438 702qP Boiler II See Viessmann pricelistqQ Boiler water temperature sensor KTS Standard delivery pos. 12qW Vitotronic 100, type GC1B Standard delivery pos. 10qE Motorised butterfly valve See Vitoset pricelistqR Temperature sensor T1 in conjunction with the Vitotronic 100, type GC1B – Contact temperature sensor

or7426 463

– Immersion temperature sensor 7438 702qT DHW cylinder See Viessmann pricelistqZ Cylinder temperature sensor STS Standard delivery pos. 4qU DHW circulation pump ZP See Vitoset pricelistqI Circulation pump for cylinder heating UPSB See Viessmann pricelistqO Heating circuit I wQ Heating circuit pump M2 (heating circuit I) On site Extension kit for one heating circuit with mixer M2 (heating circuit I)

Components:7441 998

wP – Flow temperature sensor M2 (contact temperature sensor)and

wW – Mixer motor or wP Contact temperature sensor

or7426 463

Immersion temperature sensor and

7438 702

wW Mixer motor M2 for flanged mixer and plugandMixer

See Viessmann pricelist

wE Heating circuit II wT Heating circuit pump M3 (heating circuit II) On site Extension kit for one heating circuit with mixer M2 (heating circuit II)

Components:7441 998

wR – Flow temperature sensor M2 (contact temperature sensor)and

wZ – Mixer motor or wR Contact temperature sensor

or7426 463

Immersion temperature sensor and

7438 702

wZ Mixer motor M2 for flanged mixer and plugandMixer

See Viessmann pricelist

Boiler, ≤ 20,000 kW (cont.)

66 VIESMANN System examples

2

5822

471

GB

Page 64: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

ID: 4605072_1404_07Pos. Title Part no.wU Heating circuit III wO Heating circuit pump M1 (heating circuit III) On site

Extension kit for one heating circuit with mixer comprising 7441 998wI Flow temperature sensor M1 (heating circuit III)

and

eP Mixer motor M1 (heating circuit III) or wI – Contact temperature sensor

or7426 463

– Immersion temperature sensor 7438 702 and eP Mixer motor for flanged mixer M1 (heating circuit III) See Viessmann pricelisteQ Vitotronic 200-H, type HK1B

andSee Viessmann pricelist

LON communication module for pos. 31and

7172 173

LON cable 7143 495eW Outside temperature sensor ATS (ATS value can be accepted by the Vitotronic 300-K) Standard delivery pos. 31 Boiler accessories eE Plug-in adaptor for external safety equipment 7164 404eR Minimum pressure limiter SDB 7438 030eT Maximum pressure limiter SDB 7438 025eZ Water level limiter (low water indicator) WB See Viessmann pricelisteI Flue gas temperature sensor AGS 7452 531zR - External changeover of stepped/modulating burners zI - External blocking/boiler zO - Start boiler as the last one in the sequence Accessories rP ON/OFF switch On siterZ Central fault message facility On siterU Vitotrol 200A

orZ008 341

Vitotrol 300A Z008 342 As an alternative to hardwired remote control units, the following wireless accessory may be used q-P Wireless base station Z011 413q-Q Vitotrol 200 RF Z011 219q-W Vitotrol 300 RF with table-top dock Z011 410q-E Vitotrol 300 RF with wall mounting bracket Z011 412q-R Wireless outside temperature sensor 7455 213q-T Wireless repeater 7456 538rI Contactor relay 7814 681tP Power supply 230 V/50 Hz On sitetQ Radio clock receiver 7450 563tE KM BUS distributor, for several KM BUS subscribers

– EA1 extension– Vitotrol 200A, 300A– Wireless base station

7415 028

zP EA1 extension 7452 091zQ 1 switching output (floating changeover contact)

- Switching a feed pump to a substation- Signalling reduced mode for one heating circuit

zW 1 analogue input (0 – 10 V)- Set flow temperature default

zE 3 digital inputs- External changeover of operating state for heating circuits 1 to 3, may be switched individually - External blocking with central fault message facility- Fault messages- Brief operation of the DHW circulation pump

External hook-ups On sitezT - External blocking/mixer close zZ - External demand zU - External operating program changeover/mixer open uP Vitocom 300, type LAN3 Z011 555

Boiler, ≤ 20,000 kW (cont.)

System examples VIESMANN 67

5822

471

GB

2

Page 65: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Electrical installation scheme

LP A2

1

146

143

145

145

LON

3/2 12

5B

5A

17B

17A 1234

Low

vol

tage

12 M3 24

1M2 202

2 M3

M2

LP A1

2

STS 16

VTS 7

5ATS

51

Low

vol

tage

ZP

230

V/5

0 H

z

4

17

156

40

50

29

20 A1

52 A1

21

28

UPSB 18

LP A3

S 46

4

40

4

M3 25

M2 22

M3 26

M2 2120

52

52

20 M3

M2

M3

M2

230

V/5

0 H

z

40 4156

3LONKM BUS

53

145

145

47

60

40

40A

157

0-10V 62

63

145

34

DE3

145

63DE2

63DE1

EA1

KM BUS distributor

61

VP 6

230 V/50 Hz

65

66

67

40

70

230 V/50 Hz

40

100

MW1B MW1B

1

32

1

32

1

32

1234

1234

L

N

L

N

L

N

L

N

N

L

N

L

NM1~

M1~

L

N

N

M1~

M1~

NM1~

L

N

M1~

1

32

L

N

S

12

12

12

1

32

M1~

N

L

N

L

N

L

12

1

32

ID: 4605072_1404_07

Boiler, ≤ 20,000 kW (cont.)

68 VIESMANN System examples

2

5822

471

GB

Page 66: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

230

V/ 5

0 H

z

3

151

90

41

150

156

156

40

50

29

20 A1

52 A1

21

28

LP A3

M1~ 13

334

4

4

SDB

SDB

WB145

7145

90

41

7

S

LP A2

Low

vol

tage T1 14

KTS 11

AGS 45

1

146

143

15 12

145

145

LON

3/2 12

5 B

5 A

17 B

17 A 1234

12

3 12

4

34

35

36

8

46

9

2

38

33145

LON 4 3 12 31

/

/

/

/

/ / /

/

/

230 V/ 50 Hz

40

69

64

68

GC1B

L

N

L

N

L

N

L

N

N

L

N

L

N

L

N

1

32

P

P

1

32

1

32

1

32

1234

1234

N

L

ID: 4605072_1404_07

Boiler, ≤ 20,000 kW (cont.)

System examples VIESMANN 69

5822

471

GB

2

Page 67: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

230

V/5

0 H

z

156

40

50

29

20 M1

52 M1

21

28

M1M1~

S

Low

vol

tage

M1

1

146

143

145

145

LON

3/2 12

5B

5A

17B

17A 1234

M1

LON

230 V/50 Hz

LP A3

LP A2

ATS

HK1B

145 /

/ / /

L

N

L

N

L

N

L

N

N

L

N

L

N

1

32

1

32

1

32

1234

1234

M1~

N

L

31

40

46

29

30

28

31

47

3 4

100

11 70

ID: 4605072_1404_07

Wiring diagramWiring for reducing the flow rate via temperature sensor T1 (9/qR) in heating systems with heating circuit control units that are not connectedto the boiler control unit via the LON BUS.

K3

K1 K2

L1NPE

1 2 ... n

A1 A1

K1

N L1

K2

N L1

ID: 4605072_1404_07

The cylinder temperature controller and distribution pump (6) must be connected to the external control unit if an external cascade control unitis used.

Boiler, ≤ 20,000 kW (cont.)

70 VIESMANN System examples

2

5822

471

GB

Page 68: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

2.12 Multi boiler system: Boilers with distribution pump and injection control

ID: 4605073_1404_07

ApplicationsIf the distributor is located in a remote substation (> 20 m) and theheating circuits require heat immediately on demand, e.g. fan heaters.The heat transfer to the heating circuits must be able to be reduced.

Main components

Multi boiler system with:■ Vitoplex 200 or 300

orVitorond 200orVitomax 100-LW, 200-LW or 300-LT

■ Vitotronic 200-Hand– Vitotronic 100, type GC1B, for each boiler in a multi boiler system

andVitotronic 300-K, type MW1B; one required for the multi boiler sys-temor

– Vitotronic 100, type GC1B, for each boiler in a multi boiler systemandVitocontrol control panel with integral weather-compensated con-trol unit Vitotronic 300-K, type MW1B

■ Distribution pump■ Injection control

Function descriptionTemperature sensors T1 9 and qR proportionally reduce or com-pletely close mixers wE, wI and eE if the actual temperature falls belowthe required minimum return temperature.

Size distribution pump 6 to 110 % of the total heating system flowrate.Observe the corresponding pressure drops of the respective heat gen-erators when sizing pumps.Upon demand, the injection control provides consumers with heatimmediately. For this purpose, 3-way mixers wE, wI and eE are regu-lated.If the heat transfer to the heating circuits cannot be reduced, e.g. inolder systems, we recommend connecting the boilers in accordancewith the sample application with boiler circuit pump and 3-way mixingvalve (pressurised distributor).No shunt pump or costly mixing valve for raising the return temperatureare required.The boiler is optimally protected when using the Vitotronic 300-K (typeMW1B) 4 or controlling the heating circuits via the Vitotronic 200-HeR connected to the boiler control unit. No additional protective meas-ures are required on site.

DHW heatingThe DHW is heated up when the actual temperature falls below theset DHW temperature at cylinder temperature sensor qZ, subject tocylinder heating being enabled by the time switch. The boiler watertemperature is raised to the set cylinder temperature +20 K and thecirculation pump for cylinder heating qI is started if the boiler watertemperature is 7 K above the cylinder temperature.Heating circuit pumps M2 and M3 are switched off and mixers M2 andM3 are closed, subject to priority being enabled, if the heating circuitsare regulated via Vitotronic 4 and eR.

Heating modeDepending on the control unit used, the flow temperature of heatingcircuits qO, wR and wO can be operated in modulating mode subjectto the outside temperature. The boiler water temperature is regulated8 K higher than the set flow temperature.

NoteThis scheme is a general system example. Refer to the relevanttechnical guides when designing for specific applications.

Boiler, ≤ 20,000 kW (cont.)

System examples VIESMANN 71

5822

471

GB

2

Page 69: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Required codes

ID: 4605073_1404_07Service address Vitotronic 300-K, type MW1B / pos. 4Group Code Function"General" "00:8" Two heating circuits with mixer M2 (heating circuit 2) and M3 (heating

circuit 3) with DHW heating"General" "4d:0" Distribution pump"Cascade" "35:2" Number of connected heat generators"Cascade" "38:1" Changeover of lead boiler (monthly)Service address Vitotronic 100, type GC1B / pos. 3"Boiler" "01:2" Multi boiler system with cascade control via LON"Boiler" "02:1"

or "02:2"

Two-stage burner (delivered condition)

Modulating burnerService address Vitotronic 100, type GC1B / pos. qW"General" "77:2" LON subscriber number"Boiler" "01:2" Multi boiler system with cascade control via LON"Boiler" "02:1"

or "02:2"

Two-stage burner (delivered condition)

Modulating burner"Boiler" "07:2" Consecutive boiler number in multi boiler systemsService address Vitotronic 200-H, type HK1B / pos. eR"General" "81:3" Control unit receives the time"General" "97:1" Control unit receives outside temperature

Boiler, ≤ 20,000 kW (cont.)

72 VIESMANN System examples

2

5822

471

GB

Page 70: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Hydraulic installation scheme ID: 4605073_1404_07

KW

WW

--4/5A--

15

16

17

34

19

20

21

22

24

25

26

27

29

30

31

32

--4/2M2--

--4/20M2--

--4/52M2--

--4/2M3--

--4/20M3--

-34/3/2M1-

-34/20M1-

-34/

52M

1-

--23

0V--

--52

M1-

---

20M

1--

--3/

2M1-

-

18--4/21--

--4/28--

92 1411

5

--3/17A--

--3/

3/2-

-

--4/

1--

--12/17A--

--12

/3/2

--

--LO

N--

4

--23

0V--

--21

----

28--

--52

M2-

---

20M

2--

--52

M3-

---

20M

3--

--2M

3--

--2M

2--

--5A

----

3/2-

---

1--

--K

M-B

us--

--LO

N--

12

--23

0V--

--52

A1-

-

--LO

N--

--LO

N--

--17

A--

--3/

2--

--4/3/2--7--4/29--

6

--29

--

--3/

52A

1--

--12

/52A

1--

8 13

23--4/52M3--28 33

10

HK1B

GC1B3

--23

0V--

--52

A1-

-

--LO

N--

--LO

N--

--17

A--

--3/

2--

1

GC1B

MW1B

Note: This scheme is a general example without shut-off valves or safety equipment. This does not replace the need for on-site engineering.

Boiler, ≤ 20,000 kW (cont.)

System examples VIESMANN 73

5822

471

GB

2

Page 71: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Equipment required

ID: 4605073_1404_07Pos. Title Part no.1 Boiler I See Viessmann pricelist2 Boiler water temperature sensor KTS Standard delivery pos. 33 Vitotronic 100, type GC1B Standard delivery pos. 14 Vitotronic 300-K, type MW1B Standard delivery pos. 15 Outside temperature sensor ATS Standard delivery pos. 46 Distribution pump On site7 Flow temperature sensor – Contact temperature sensor

or7426 463

– Immersion temperature sensor 7438 7028 Motorised butterfly valve See Vitoset pricelist9 Temperature sensor T1 in conjunction with the Vitotronic 100, type GC1B – Contact temperature sensor

or7426 463

– Immersion temperature sensor 7438 702qP Boiler II See Viessmann pricelistqQ Boiler water temperature sensor KTS Standard delivery pos. 12qW Vitotronic 100, type GC1B Standard delivery pos. 10qE Motorised butterfly valve See Vitoset pricelistqR Temperature sensor T1 in conjunction with the Vitotronic 100, type GC1B – Contact temperature sensor

or7426 463

– Immersion temperature sensor 7438 702qT DHW cylinder See Viessmann pricelistqZ Cylinder temperature sensor STS Standard delivery pos. 4qU DHW circulation pump ZP See Vitoset pricelistqI Circulation pump for cylinder heating UPSB See Viessmann pricelistqO Heating circuit I wQ Heating circuit pump M2 (heating circuit I) On sitewW Injection control On site Extension kit for one heating circuit with mixer M2 (heating circuit I)

Components:7441 998

wP – Flow temperature sensor M2 (contact temperature sensor)and

wE – Mixer motor or wP Contact temperature sensor

or7426 463

Immersion temperature sensor and

7438 702

wE Mixer motor M2 for flanged mixer and plugandMixer

See Viessmann pricelist

wR Heating circuit II wZ Heating circuit pump M3 (heating circuit II) On sitewU Injection control On site Extension kit for one heating circuit with mixer M2 (heating circuit II)

Components:7441 998

wT – Flow temperature sensor M2 (contact temperature sensor)and

wI – Mixer motor or wT Contact temperature sensor

or7426 463

Immersion temperature sensor and

7438 702

wI Mixer motor M2 for flanged mixer and plugandMixer

See Viessmann pricelist

Boiler, ≤ 20,000 kW (cont.)

74 VIESMANN System examples

2

5822

471

GB

Page 72: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

ID: 4605073_1404_07Pos. Title Part no.wO Heating circuit III eQ Heating circuit pump M1 (heating circuit III) On siteeW Injection control On site Extension kit for one heating circuit with mixer comprising 7441 998eP Flow temperature sensor M1 (heating circuit III)

and

eE Mixer motor M1 (heating circuit III) or

eP – Contact temperature sensoror

7426 463

– Immersion temperature sensor 7438 702 and eE Mixer motor for flanged mixer M1 (heating circuit III) See Viessmann pricelisteR Vitotronic 200-H, type HK1B

andZ009 462

LON communication module for pos. 34and

7172 173

LON cable 7143 495eT Outside temperature sensor ATS (ATS value can be accepted by the Vitotronic 300-K) Standard delivery pos. 34 Boiler accessories eZ Plug-in adaptor for external safety equipment 7164 404eU Minimum pressure limiter SDB 7438 030eI Maximum pressure limiter SDB 7438 025eO Water level limiter (low water indicator) WB See Viessmann pricelistrQ Flue gas temperature sensor AGS 7452 531zR - External changeover of stepped/modulating burners zI - External blocking/boiler zO - Start boiler as the last one in the sequence Accessories rP ON/OFF switch On siterO Central fault message facility On sitetP Vitotrol 200A

orZ008 341

Vitotrol 300A Z008 342 As an alternative to hardwired remote control units, the following wireless accessory may be used q-P Wireless base station Z011 413q-Q Vitotrol 200 RF Z011 219q-W Vitotrol 300 RF with table-top dock Z011 410q-E Vitotrol 300 RF with wall mounting bracket Z011 412q-R Wireless outside temperature sensor 7455 213q-T Wireless repeater 7456 538tQ Contactor relay 7814 681tE Power supply 230 V/50 Hz On sitetR Radio clock receiver 7450 563tZ KM BUS distributor, for several KM BUS subscribers

– EA1 extension– Vitotrol 200A, 300A– Wireless base station

7415 028

zP EA1 extension 7452 091zQ 1 switching output (floating changeover contact)

- Switching a feed pump to a substation- Signalling reduced mode for one heating circuit

zW 1 analogue input (0 – 10 V)- Set flow temperature default

zE 3 digital inputs- External changeover of operating state for heating circuits 1 to 3, may be switched individually - External blocking with central fault message facility- Fault messages- Brief operation of the DHW circulation pump

External hook-ups On sitezT - External blocking/mixer close zZ - External demand zU - External operating program changeover/mixer open uP Vitocom 300, type LAN3 Z011 555

Boiler, ≤ 20,000 kW (cont.)

System examples VIESMANN 75

5822

471

GB

2

Page 73: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Electrical installation scheme

LP A2

1

146

143

145

145

LON

3/2 12

5B

5A

17B

17A 1234

Low

vol

tage

12 M3 25

1M2 202

2 M3

M2

LP A1

2

STS 16

VTS 7

5ATS

54

Low

vol

tage

ZP

230

V/5

0 H

z

4

17

156

40

50

29

20 A1

52 A1

21

28

UPSB 18

LP A3

S 49

4

40

4

M3 26

M2 23

M3 28

M2 2120

52

52

20 M3

M2

M3

M2

230

V/5

0 H

z

404

156

3LON

56

145

145

60

40

40A

157

0-10V 62

63

145

34

DE3

145

63DE2

63DE1

EA1

KM BUS distributor

61

VP 6

230 V/50 Hz

40

65

66

67

70

230 V/50 Hz

40

KM BUS 50 100

MW1B MW1B

1

32

1

32

1

32

1234

1234

L

N

L

N

L

N

L

N

N

L

N

L

NM1~

M1~

L

N

N

M1~

M1~

NM1~

L

N

M1~

1

32

L

N

S

12

12

12

1

32

M1~

N

L

N

L

N

L

12

1

32

ID: 4605073_1404_07

Boiler, ≤ 20,000 kW (cont.)

76 VIESMANN System examples

2

5822

471

GB

Page 74: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

230

V/ 5

0 H

z

3

151

90

41

150

156

156

40

50

29

20 A1

52 A1

21

28

LP A3

M1~ 13

364

4

4

SDB

SDB

WB145

7145

90

41

7

S

LP A1

Low

vol

tage T1 14

KTS 11

AGS 48

1

146

143

15 12

145

145

LON

3/2 12

5 B

5 A

17 B

17 A 1234

12

3 12

4

37

38

39

8

49

9

2

41

36145

LON 4 3 12 34

/

/

/

/

/ / /

/

/

230 V/ 50 Hz

69

64

68

40

GC1B

L

N

L

N

L

N

L

N

N

L

N

L

N

L

N

1

32

P

P

1

32

1

32

1

32

1234

1234

N

L

ID: 4605073_1404_07

Boiler, ≤ 20,000 kW (cont.)

System examples VIESMANN 77

5822

471

GB

2

Page 75: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

230

V/5

0 H

z

156

40

50

29

20 M1

52 M1

21

28

230 V/50 Hz

M1M1~

S

Low

vol

tage

M1

1

146

143

145

145

LON

3/2 12

5B

5A

17B

17A 1234

M1

LON

230 V/50 Hz

LP A3

LP A2

ATS

HK1B

145 /

/ / /

L

N

L

N

L

N

L

N

N

L

N

L

N

1

32

1

32

1

32

1234

1234

M1~

N

L

34

40

49

31

33

30

35

50

3 4

100

12 70

ID: 4605073_1404_07

Wiring diagramWiring for reducing the flow rate via temperature sensor T1 9/qR in heating systems with heating circuit control units that are not connectedto the boiler control unit via the LON BUS.

K3

K1 K2

L1NPE

1 2 ... n

A1sÖ A1sÖ

K1

N L1

K2

N L1

tQ

tE

tW

tQ

tQ

ID: 4605073_1404_07

The cylinder temperature controller and distribution pump 6 must be connected to the external control unit if an external cascade control unitis used.

Boiler, ≤ 20,000 kW (cont.)

78 VIESMANN System examples

2

5822

471

GB

Page 76: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

2.13 Multi boiler system: Boilers with boiler circuit pump and 3-way mixing valve for returntemperature raising

ID: 4605074_1404_07

ApplicationsFor example, older systems or systems in commercial nurseries, aswell as systems where downstream heating circuits cannot be con-trolled.

Main components

Multi boiler system with:■ Vitoplex 200 or 300

orVitorond 200orVitomax 100-LW, 200-LW or 300-LT

■ Vitotronic 200-Hand– Vitotronic 100, type GC1B, for each boiler in a multi boiler system

andVitotronic 300-K, type MW1B; one required for the multi boiler sys-temor

– Vitotronic 100, type GC1B, for each boiler in a multi boiler systemandVitocontrol control panel with integral weather-compensated con-trol unit Vitotronic 300-K, type MW1B

■ 3-way mixing valve for raising the return temperature.

Function descriptionTemperature sensors T1 8 and qR proportionally close 3-way mixingvalves 7 and qE at the boilers, thereby safeguarding boiler protectionif the actual temperature falls below the required minimum return tem-perature.

Boiler and downstream heating circuits are hydraulically linked.The flow temperature is controlled by common temperature sensor6.Proportional return temperature raising to protect the boiler.Boilers are protected against return temperatures that are too low,independently of the downstream heating circuits.

NoteSize boiler circuit pumps 9 and qT for each boiler so that their flowrate is at least equal to the maximum total heating circuit flow rate.Recommendation: 110 %Observe the corresponding pressure drops of the respective heat gen-erators when sizing pumps.

DHW heatingThe DHW is heated up when the actual temperature falls below theset DHW temperature at cylinder temperature sensor qU, subject tocylinder heating being enabled by the time switch. The boiler watertemperature is raised to the set cylinder temperature +20 K and thecirculation pump for cylinder heating qO is started if the boiler watertemperature is 7 K above the cylinder temperature.If the heating circuits are regulated via the Vitotronic 4 and eW, heat-ing circuit pumps M2 and M3 wW, wZ and eP are switched off andmixers M2 and M3 wE, wU and eQ are closed, subject to priority beingenabled.

Heating modeDepending on the control unit used, the flow temperature of heatingcircuits wP, wR and wI can be operated in modulating mode subjectto the outside temperature. The boiler water temperature is regulated8 K higher than the set flow temperature.

NoteThis scheme is a general system example. Refer to the relevanttechnical guides when designing for specific applications.

Boiler, ≤ 20,000 kW (cont.)

System examples VIESMANN 79

5822

471

GB

2

Page 77: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Required codes

ID: 4605074_1404_07Service address Vitotronic 300-K, type MW1B / pos. 4Group Code Function"General" "00:8" Two heating circuits with mixer M2 (heating circuit 2) and M3 (heating

circuit 3) with DHW heating"Cascade" "35:2" Number of connected heat generators"Cascade" "38:1" Changeover of lead boiler (monthly)Service address Vitotronic 100, type GC1B / pos. 3"General" "4d:2" Boiler circuit pump"General" "4E:1" Motor for 3-way mixer for return temperature raising facility"Boiler" "01:2" Multi boiler system with cascade control via LON"Boiler" "02:1"

or "02:2"

Two-stage burner (delivered condition)

Modulating burner"Boiler" "0C:1" Constant return temperature controlService address Vitotronic 100, type GC1B / pos. qW"General" "4d:2" Boiler circuit pump"General" "4E:1" Motor for 3-way mixer for return temperature raising facility"General" "77:2" LON subscriber number"Boiler" "01:2" Multi boiler system with cascade control via LON"Boiler" "02:1"

or "02:2"

Two-stage burner (delivered condition)

Modulating burner"Boiler" "07:2" Consecutive boiler number in multi boiler systems"Boiler" "0C:1" Constant return temperature controlService address Vitotronic 200-H, type HK1B / pos. eW"General" "81:3" Control unit receives the time"General" "97:1" Control unit receives outside temperature

Boiler, ≤ 20,000 kW (cont.)

80 VIESMANN System examples

2

5822

471

GB

Page 78: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Hydraulic installation scheme ID: 4605074_1404_07

KW

WW

--4/5A--

16

17

18

32

20

21

22

23

24

25

26

27

28

29

30

31

--4/2M2--

--4/20M2--

--4/52M2--

--4/2M3--

--4/20M3--

--4/52M3--

-32/3/2M1-

-32/20M1-

-32/52M1-

--23

0V--

--52

M1-

---

20M

1--

--3/

2M1-

-

19--4/21--

--4/28-- 7

82

913

1411

15

5

--3/29--

--3/52A1--

--3/17A--

--3/

3/2-

-

--4/

1--

--12/29--

--12/52A1--

--12/17A--

--12

/3/2

--

--LO

N--

4

--23

0V--

--21

----

28--

--52

M2-

---

20M

2--

--52

M3-

---

20M

3--

--2M

3--

--2M

2--

--5A

----

3/2-

---

1--

--K

M-B

us--

--LO

N--

12

--23

0V--

--52

A1-

---

29--

--LO

N--

--LO

N--

--17

A--

--3/

2--

--4/3/2--6

10

HK1BMW1B

GC1B3

--23

0V--

--52

A1-

---

29--

--LO

N--

--LO

N--

--17

A--

--3/

2--

1

GC1B

Note: This scheme is a general example without shut-off valves or safety equipment. This does not replace the need for on-site engineering.

Boiler, ≤ 20,000 kW (cont.)

System examples VIESMANN 81

5822

471

GB

2

Page 79: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Equipment required

ID: 4605074_1404_07Pos. Title Part no.1 Boiler I See Viessmann pricelist2 Boiler water temperature sensor KTS Standard delivery pos. 33 Vitotronic 100, type GC1B Standard delivery pos. 14 Vitotronic 300-K, type MW1B Standard delivery pos. 15 Outside temperature sensor ATS Standard delivery pos. 46 Flow temperature sensor – Contact temperature sensor

or7426 463

– Immersion temperature sensor 7438 7027 3-way mixing valve On site8 Temperature sensor T1 in conjunction with the Vitotronic 100, type GC1B – Contact temperature sensor

or7426 463

– Immersion temperature sensor 7438 7029 Boiler circuit pump On siteqP Boiler II See Viessmann pricelistqQ Boiler water temperature sensor KTS Standard delivery pos. 12qW Vitotronic 100, type GC1B Standard delivery pos. 10qE 3-way mixing valve On siteqR Temperature sensor T1 in conjunction with the Vitotronic 100, type GC1B – Contact temperature sensor

or7426 463

– Immersion temperature sensor 7438 702qT Boiler circuit pump On siteqZ DHW cylinder See Viessmann pricelistqU Cylinder temperature sensor STS Standard delivery pos. 4qI DHW circulation pump ZP See Vitoset pricelistqO Circulation pump for cylinder heating UPSB See Viessmann pricelistwP Heating circuit I wW Heating circuit pump M2 (heating circuit I) On site Extension kit for one heating circuit with mixer M2 (heating circuit I)

Components:7441 998

wQ – Flow temperature sensor M2 (contact temperature sensor)and

wE – Mixer motor or wQ Contact temperature sensor

or7426 463

Immersion temperature sensor and

7438 702

wE Mixer motor M2 for flanged mixer and plugandMixer

See Viessmann pricelist

wR Heating circuit II wZ Heating circuit pump M3 (heating circuit II) On site Extension kit for one heating circuit with mixer M2 (heating circuit II)

Components:7441 998

wT – Flow temperature sensor M2 (contact temperature sensor)and

wU – Mixer motor or wT Contact temperature sensor

or7426 463

Immersion temperature sensor and

7438 702

wU Mixer motor M2 for flanged mixer and plugandMixer

See Viessmann pricelist

Boiler, ≤ 20,000 kW (cont.)

82 VIESMANN System examples

2

5822

471

GB

Page 80: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

ID: 4605074_1404_07Pos. Title Part no.wI Heating circuit III eP Heating circuit pump M1 (heating circuit III) On site Extension kit for one heating circuit with mixer comprising 7441 998wO Flow temperature sensor M1 (heating circuit III)

and

eQ Mixer motor M1 (heating circuit III) or wO – Contact temperature sensor

or7426 463

– Immersion temperature sensor 7438 702 and eQ Mixer motor for flanged mixer M1 (heating circuit III) See Viessmann pricelisteW Vitotronic 200-H, type HK1B

andZ009 462

uP LON communication module for pos. 32and

7172 173

LON cable 7143 495eE Outside temperature sensor ATS (ATS value can be accepted by the Vitotronic 300-K) Standard delivery pos. 32 Boiler accessories eR Plug-in adaptor for external safety equipment 7164 404eT Minimum pressure limiter SDB 7438 030eZ Maximum pressure limiter SDB 7438 025eU Water level limiter (low water indicator) WB See Viessmann pricelisteO Flue gas temperature sensor AGS 7452 531zR - External changeover of stepped/modulating burners zI - External blocking/boiler zO - Start boiler as the last one in the sequence Accessories rP ON/OFF switch On siterU Central fault message facility On siterI Vitotrol 200A

orZ008 341

Vitotrol 300A Z008 342 As an alternative to hardwired remote control units, the following wireless accessory may be used q-P Wireless base station Z011 413q-Q Vitotrol 200 RF Z011 219q-W Vitotrol 300 RF with table-top dock Z011 410q-E Vitotrol 300 RF with wall mounting bracket Z011 412q-R Wireless outside temperature sensor 7455 213q-T Wireless repeater 7456 538rO Radio clock receiver 7450 563tE KM BUS distributor, for several KM BUS subscribers

– EA1 extension– Vitotrol 200A, 300A– Wireless base station

7415 028

zP EA1 extension 7452 091zQ 1 switching output (floating changeover contact)

- Switching a feed pump to a substation- Signalling reduced mode for one heating circuit

zW 1 analogue input (0 – 10 V)- Set flow temperature default

zE 3 digital inputs- External changeover of operating state for heating circuits 1 to 3, may be switched individually - External blocking with central fault message facility- Fault messages- Brief operation of the DHW circulation pump

External hook-ups On sitezT - External blocking/mixer close zZ - External demand zU - External operating program changeover/mixer open uP LON communication module (part of standard delivery for Vitotronic 300-K) 7172 173uQ Vitocom 300, type LAN3 Z011 555

Boiler, ≤ 20,000 kW (cont.)

System examples VIESMANN 83

5822

471

GB

2

Page 81: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Electrical installation scheme

LP A2

1

146

143

145

145

LON

3/2 12

5B

5A

17B

17A 1234

Low

vol

tage

12 M3

1M22

2 M3

M2

LP A1

2

STS

VTS

ATS

Low

vol

tage

ZP

230

V/5

0 H

z

156

40

50

29

20 A1

52 A1

21

28

UPSB

LP A3

S

40

M3

M2

M3M1~

M220

52

52

20 M3

M2

M3

M2

230

V/5

0 H

z

40 156

230 V/50 Hz

KM BUS145

145

40

40A

157

0-10V

145

34

DE3

145

DE2

DE1

EA1

KM BUS distributor

230 V/50 Hz

MW1B MW1B

LON / / / /

1

32

1

32

1

32

1234

1234

L

N

L

N

L

N

N

L

N

L

NM1~

M1~

L

N

N

M1~

M1~

N

L

N

M1~

L

N

N

L

N

L

1

32

L

N

S

12

12

12

1

32

N

L

12

1

32

4

4 40

47

19

18

66

6567

17

6

49

5

703 12

53

60

4

21

25

22

26

23

27

4

40

61

62

63

48 10032 71

63

63

ID: 4605074_1404_07

Boiler, ≤ 20,000 kW (cont.)

84 VIESMANN System examples

2

5822

471

GB

Page 82: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

230

V/5

0 H

z

151

90

41

150

156

156

40

50

29

20 A1

52 A1

21

28

LP A3

M1~

4

4

4

SDB

SDB

WB145

7145

90

41

7

S

LP A1

Low

vol

tage T1

KTS

AGS

1

146

143

15 12

145

145

LON

3/2 12

5B

5A

17B

17A 1234

4

/

/

KKP /

230 V/50 Hz

GC1B

145

LON

/

/

/

/ / / /

L

N

L

N

L

N

L

N

N

L

N

L

N

L

N

1

32

P

P

1

32

1

32

1

32

1234

1234

M1~

N

L

3 12

3 12

40

34

35

36

37

47

9 15

64

6968

39

34

70

7 13

8 14

2 11

3 4 12 32 71

ID: 4605074_1404_07

Boiler, ≤ 20,000 kW (cont.)

System examples VIESMANN 85

5822

471

GB

2

Page 83: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

230

V/5

0 H

z

156

40

50

29

20 M1

52 M1

21

28

LP A3

M1M1~

S

LP A2

Low

vol

tage

M1

1

146

143

145

145

LON

3/2 12

5B

5A

17B

17A 1234

M1

230 V/50 Hz

ATS

HK1B

LON

145 /

/ / /

L

N

L

N

L

N

L

N

N

L

N

L

N

1

32

1

32

1

32

1234

1234

M1~

N

L

32

40

47

30

31

29

33

48 100

470

3 12 71

ID: 4605074_1404_07

Boiler, ≤ 20,000 kW (cont.)

86 VIESMANN System examples

2

5822

471

GB

Page 84: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

2.14 Multi boiler system: Boilers with boiler circuit pump, low loss header and 3-way mix-ing valve for return temperature raising

ID: 4605075_1404_07

ApplicationsFor example, older system or systems in commercial nurseries, as wellas systems where the hydraulic conditions cannot be clearly definedand/or systems where downstream heating circuits cannot be control-led.

Main components

Multi boiler system with:■ Vitoplex 200 or 300

orVitorond 200orVitomax 100-LW, 200-LW or 300-LT

■ Vitotronic 200-Hand– Vitotronic 100, type GC1B, for each boiler in a multi boiler system

andVitotronic 300-K, type MW1B; one required for the multi boiler sys-temor

– Vitotronic 100, type GC1B, for each boiler in a multi boiler systemandVitocontrol control panel with integral weather-compensated con-trol unit Vitotronic 300-K, type MW1B

■ 3-way mixing valve for raising the return temperature■ Low loss header

Function descriptionTemperature sensors T1 9 and qT proportionally close 3-way mixingvalves 8 and qR at the boilers, thereby safeguarding boiler protectionif the actual temperature falls below the required minimum return tem-perature.The flow temperature is controlled by temperature sensor 7 in lowloss header 6.Boiler and downstream heating circuits are hydraulically linked.Proportional return temperature raising to protect the boiler.Boilers are protected against return temperatures that are too low,independently of the downstream heating circuits.

NoteSize boiler circuit pumps qP and qZ for each boiler so that their flowrate is at least equal to the maximum total heating circuit flow rate.Recommendation: 110 %Observe the corresponding pressure drops of the respective heat gen-erators when sizing pumps.

DHW heatingThe DHW is heated up when the actual temperature falls below theset DHW temperature at cylinder temperature sensor qI, subject tocylinder heating being enabled by the time switch. The boiler watertemperature is raised to the set cylinder temperature +20 K and thecirculation pump for cylinder heating wP is started if the boiler watertemperature is 7 K above the cylinder temperature.If the heating circuits are regulated via the Vitotronic 4 and eE, heat-ing circuit pumps M2 and M3 wE, wU and eQ are switched off andmixers M2 and M3 wR, wI and eW are closed, subject to priority beingenabled.

Heating modeDepending on the control unit used, the flow temperature of heatingcircuits wQ, wT and wO can be operated in modulating mode subjectto the outside temperature. The boiler water temperature is regulated8 K higher than the set flow temperature.

NoteThis scheme is a general system example. Refer to the relevanttechnical guides when designing for specific applications.

Required codes

ID: 4605075_1404_07Service address Vitotronic 300-K, type MW1B / pos. 4Group Code Function"General" "00:8" Two heating circuits with mixer M2 (heating circuit 2) and M3 (heating

circuit 3) with DHW heating"Cascade" "35:2" Number of connected heat generators"Cascade" "38:1" Changeover of lead boiler (monthly)Service address Vitotronic 100, type GC1B / pos. 3"General" "4d:2" Boiler circuit pump"General" "4E:1" Motor for 3-way mixer for return temperature raising facility"Boiler" "01:2" Multi boiler system with cascade control via LON"Boiler" "02:1"

or "02:2"

Two-stage burner (delivered condition)

Modulating burner"Boiler" "0C:1" Constant return temperature control

Boiler, ≤ 20,000 kW (cont.)

System examples VIESMANN 87

5822

471

GB

2

Page 85: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

ID: 4605075_1404_07Service address Vitotronic 300-K, type MW1B / pos. 4Group Code FunctionService address Vitotronic 100, type GC1B / pos. qE"General" "4d:2" Boiler circuit pump"General" "4E:1" Motor for 3-way mixer for return temperature raising facility"General" "77:2" LON subscriber number"Boiler" "01:2" Multi boiler system with cascade control via LON"Boiler" "02:1"

or "02:2"

Two-stage burner (delivered condition)

Modulating burner"Boiler" "07:2" Consecutive boiler number in multi boiler systems"Boiler" "0C:1" Constant return temperature controlService address Vitotronic 200-H, type HK1B / pos. eE"General" "81:3" Control unit receives the time"General" "97:1" Control unit receives outside temperature

Boiler, ≤ 20,000 kW (cont.)

88 VIESMANN System examples

2

5822

471

GB

Page 86: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Hydraulic installation scheme ID: 4605075_1404_07

6

KW

WW

--4/5A--

17

18

19

33

21

22

23

24

25

26

27

28

29

30

31

32

--4/2M2--

--4/20M2--

--4/52M2--

--4/2M3--

--4/20M3--

--4/52M3--

-33/3/2M1-

-33/20M1-

-33/52M1-

--23

0V--

--52

M1-

---

20M

1--

--3/

2M1-

-

7--4/3/2--

20--4/21--

--4/28-- 8

92

10 14

1512

16

5

--3/29--

--3/52A1--

--3/17A--

--3/

3/2-

-

--4/

1--

--13/29--

--13/52A1--

--13/17A--

--13

/3/2

--

--LO

N--

4

--23

0V--

--21

----

28--

--52

M2-

---

20M

2--

--52

M3-

---

20M

3--

--2M

3--

--2M

2--

--5A

----

3/2-

---

1--

--K

M-B

us--

--LO

N--

13

--23

0V--

--52

A1-

---

29--

--LO

N--

--LO

N--

--17

A--

--3/

2--

11

GC1B3

--23

0V--

--52

A1-

---

29--

--LO

N--

--LO

N--

--17

A--

--3/

2--

1

GC1B

MW1B HK1B

Note: This scheme is a general example without shut-off valves or safety equipment. This does not replace the need for on-site engineering.

Boiler, ≤ 20,000 kW (cont.)

System examples VIESMANN 89

5822

471

GB

2

Page 87: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Equipment required

ID: 4605075_1404_07Pos. Title Part no.1 Boiler I See Viessmann pricelist2 Boiler water temperature sensor KTS Standard delivery pos. 33 Vitotronic 100, type GC1B Standard delivery pos. 14 Vitotronic 300-K, type MW1B Standard delivery pos. 15 Outside temperature sensor ATS Standard delivery pos. 46 Low loss header See Vitoset pricelist7 Flow temperature sensor – Contact temperature sensor

or7426 463

– Immersion temperature sensor 7438 7028 3-way mixing valve On site9 Temperature sensor T1 in conjunction with the Vitotronic 100, type GC1B – Contact temperature sensor

or7426 463

– Immersion temperature sensor 7438 702qP Boiler circuit pump On siteqQ Boiler II See Viessmann pricelistqW Boiler water temperature sensor KTS Standard delivery pos. 13qE Vitotronic 100, type GC1B Standard delivery pos. 11qR 3-way mixing valve On siteqT Temperature sensor T1 in conjunction with the Vitotronic 100, type GC1B – Contact temperature sensor

or7426 463

– Immersion temperature sensor 7438 702qZ Boiler circuit pump On siteqU DHW cylinder See Viessmann pricelistqI Cylinder temperature sensor STS Standard delivery pos. 4qO DHW circulation pump ZP See Vitoset pricelistwP Circulation pump for cylinder heating UPSB See Viessmann pricelistwQ Heating circuit I wE Heating circuit pump M2 (heating circuit I) On site Extension kit for one heating circuit with mixer M2 (heating circuit I)

Components:7441 998

wW – Flow temperature sensor M2 (contact temperature sensor)and

wR – Mixer motor or wW Contact temperature sensor

or7426 463

Immersion temperature sensor and

7438 702

wR Mixer motor M2 for flanged mixer and plugandMixer

See Viessmann pricelist

wT Heating circuit II wU Heating circuit pump M3 (heating circuit II) On site Extension kit for one heating circuit with mixer M2 (heating circuit II)

Components:7441 998

wZ – Flow temperature sensor M2 (contact temperature sensor)and

wI – Mixer motor or wZ Contact temperature sensor

or7426 463

Immersion temperature sensor and

7438 702

wI Mixer motor M2 for flanged mixer and plugandMixer

See Viessmann pricelist

Boiler, ≤ 20,000 kW (cont.)

90 VIESMANN System examples

2

5822

471

GB

Page 88: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

ID: 4605075_1404_07Pos. Title Part no.wO Heating circuit III eQ Heating circuit pump M1 (heating circuit III) On site Extension kit for one heating circuit with mixer comprising 7441 998eP Flow temperature sensor M1 (heating circuit III)

and

eW Mixer motor M1 (heating circuit III) or eP – Contact temperature sensor

or7426 463

– Immersion temperature sensor 7438 702 and eW Mixer motor for flanged mixer M1 (heating circuit III) See Viessmann pricelisteE Vitotronic 200-H, type HK1B

andZ009 462

LON communication module for pos. 33and

7172 173

LON cable 7143 495eR Outside temperature sensor ATS (ATS value can be accepted by the Vitotronic 300-K) Standard delivery pos. 33 Boiler accessories eT Plug-in adaptor for external safety equipment 7164 404eZ Minimum pressure limiter SDB 7438 030eU Maximum pressure limiter SDB 7438 025eI Water level limiter (low water indicator) WB See Viessmann pricelisteO Flue gas temperature sensor AGS 7452 531zR - External changeover of stepped/modulating burners zI - External blocking/boiler zO - Start boiler as the last one in the sequence Accessories rP ON/OFF switch On siterI Central fault message facility On siterO Vitotrol 200A

orZ008 341

Vitotrol 300A Z008 342 The following wireless accessories are available as an alternative to hardwired remote control units: q-P Wireless base station Z011 413q-Q Vitotrol 200 RF Z011 219q-W Vitotrol 300 RF with table-top dock Z011 410q-E Vitotrol 300 RF with wall mounting bracket Z011 412q-R Wireless outside temperature sensor 7455 213q-T Wireless repeater 7456 538tP Radio clock receiver 7450 563tE KM BUS distributor, for several KM BUS subscribers

– EA1 extension– Vitotrol 200A, 300A– Wireless base station

7415 028

zP EA1 extension 7452 091zQ 1 switching output (floating changeover contact)

- Switching a feed pump to a substation- Signalling reduced mode for one heating circuit

zW 1 analogue input (0 – 10 V)- Set flow temperature default

zE 3 digital inputs- External changeover of operating state for heating circuits 1 to 3, may be switched individually- External blocking with central fault message facility- Fault messages- Brief operation of the DHW circulation pump

External hook-ups On sitezT - External blocking/mixer close zZ - External demand zU - External operating program changeover/mixer open uP Vitocom 300, type LAN3 Z011 555

Boiler, ≤ 20,000 kW (cont.)

System examples VIESMANN 91

5822

471

GB

2

Page 89: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Electrical installation scheme

LP A2

1

146

143

145

145

LON

3/2 12

5B

5A

17B

17A 1234

Low

vol

tage

12 M3 26

1M2 222

2 M3

M2

LP A1

2

STS 18

VTS 7

5ATS

50

Low

vol

tage

ZP

230

V/5

0 H

z

4

19

156

40

50

29

20 A1

52 A1

21

28

UPSB 20

LP A3

S 48

4

40

4

M3 27

M2 24

M3 28

M2 2320

52

52

20 M3

M2

M3

M2

230

V/5

0 H

z

40 4156

3LON

230 V/50 Hz

40

65

66

67

70KM BUS

53

145

145

49

60

40

40A

157

0-10V 62

63

145

34

DE3

145

63DE2

63DE1

EA1

KM BUS distributor

61

230 V/50 Hz

40

100

MW1B MW1B

1

32

1

32

1

32

1234

1234

L

N

L

N

L

N

L

N

N

L

N

L

NM1~

M1~

L

N

N

M1~

M1~

NM1~

L

N

M1~

N

L

N

L

1

32

L

N

S

12

12

12

1

32

N

L

12

1

32

ID: 4605075_1404_07

Boiler, ≤ 20,000 kW (cont.)

92 VIESMANN System examples

2

5822

471

GB

Page 90: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

230

V/ 5

0 H

z

3

151

90

41

150

156

156

40

50

29

20 A1

52 A1

21

28

LP A3

M1~ 14

354

4

4

SDB

SDB

WB145

7145

90

41

7

S

LP A2

Low

vol

tage T1 15

KTS 12

AGS 47

1

146

143

15 12

145

145

LON

3/2 12

5 B

5 A

17 B

17 A 1234

13

3 13

4

36

37

38

8

48

9

2

39

35145

LON 4 3 13 33

/

/

/

/

/ / /

/

/

KKP 1610 /

230 V/ 50 Hz

40

69

64

68

GC1B

L

N

L

N

L

N

L

N

N

L

N

L

N

L

N

1

32

P

P

1

32

1

32

1

32

1234

1234

M1~

N

L

ID: 4605075_1404_07

Boiler, ≤ 20,000 kW (cont.)

System examples VIESMANN 93

5822

471

GB

2

Page 91: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

230

V/5

0 H

z

156

40

50

29

20 M1

52 M1

21

28

LP A3

M1M1~

S

LP A2

Low

vol

tage

M1

1

146

143

145

145

LON

3/2 12

5B

5A

17B

17A 1234

M1

LON

230 V/50 Hz

ATS

HK1B

/ / /

L

N

L

N

L

N

L

N

N

L

N

L

N

1

32

1

32

1

32

1234

1234

M1~

N

L

33

40

48

31

32

30

34

3 4 13 70

ID: 4605075_1404_07

Boiler, ≤ 20,000 kW (cont.)

94 VIESMANN System examples

2

5822

471

GB

Page 92: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

3.1 Overview of sample applications

Vitocrossal 200/300 GW2B/MW1B with GC1B

Single boiler system with Vitocrossal Vitocrossal with several heating circuits and a low temperature heatingcircuit

See page 96

ID: 4605076_1404_07

See page 102

ID: 4605077_1404_07

Vitocrossal 200 with GW4B/MW1B with GC4B

Single boiler system with Vitocrossal Multi boiler system: Vitocrossal with several heating circuitsSee page 110

ID: 4605528_1404_02

See page 116

ID: 4605529_1404_02

Gas condensing boiler, ≤ 1000 kW

System examples VIESMANN 95

5822

471

GB

3

Page 93: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

3.2 Single boiler system with Vitocrossal

ID: 4605076_1404_07

ApplicationsHeating system with distributor installed close to the boiler.The boiler control unit regulates the downstream heating circuits thatcan be operated with various temperatures.

Main components■ Vitocrossal 200 (87 to 311 kW)

orVitocrossal 300 (87 to 1400 kW)

■ Vitotronic 300, type GW2B

Function descriptionThe Vitocrossal 1 is operated via a weather-compensated boilercontrol unit 2 with modulating boiler water temperature – two-stageor modulating burners are controlled. During heating operation, theboiler water temperature is raised to a level that is higher, by an adjust-able differential, than the highest heating circuit flow temperature.

Vitotronic 300 (type GW2B) 2 has two connected heating circuitsqP and qR, which are controlled without any major installation effort.A remote control unit can be connected to each heating circuit.

DHW heatingThe DHW is heated up when the actual temperature falls below theset DHW temperature selected at cylinder temperature sensor 7,subject to cylinder heating being enabled by the time switch. The boilerwater temperature is raised to the set DHW temperature +20 K, andcirculation pump for cylinder heating 8 starts if the boiler water tem-perature is 7 K above the DHW cylinder temperature. If the heating circuits are regulated via the Vitotronic 2, heating circuitpumps M2 qW and M3 qZ are switched off and mixers M2 qE and M3qU are closed, subject to absolute priority being enabled.Subject to modulating priority, heating circuit pumps M2 qW and M3qZ remain on, and mixers M2 qE and M3 qU are closed far enoughfor the set boiler water temperature for cylinder heating to be reached.In this case, DHW cylinder 6 and heating circuits qP and qR areheated simultaneously.

Heating modeDepending on the control unit used, the flow temperature of heatingcircuits qP and qR is operated in modulating mode subject to the out-side temperature. The boiler water temperature is regulated 8 K higherthan the set flow temperature.

NoteThis scheme is a general system example. Refer to the relevanttechnical guides when designing for specific applications.

Required codes

ID: 4605076_1404_07"General" "00:8" Two heating circuits with mixer M2 (heating circuit 2) and M3 (heating

circuit 3) with DHW heating"Boiler" "02:1"

or "02:2"

Two-stage burner (delivered condition)

Modulating burner"Boiler" "0d:0" Without Therm-Control

Gas condensing boiler, ≤ 1000 kW (cont.)

96 VIESMANN System examples

3

5822

471

GB

Page 94: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Hydraulic installation scheme ID: 4605076_1404_07

KW

WW

6

7

9

10

11

12

13

14

15

16

17

--2/2M2--

--2/20M2--

--2/52M2--

--2/2M3--

--2/20M3--

--2/52M3--

8--2/21--

--2/28--

43 --

2/3/

2--

--2/

1--

2

--23

0V--

--21

----

28--

--52

M2-

---

20M

2--

--52

M3-

---

20M

3--

--2M

3--

--2M

2--

--5A

----

1--

--K

M-B

us--

--3/

2--

1

5

--2/5A--

GW2B

Note: This scheme is a general example without shut-off valves or safety equipment. This does not replace the need for on-site engineering.

Equipment required

ID: 4605076_1404_07Pos. Title Part no.1 Boiler See Viessmann pricelist2 Vitotronic 300, type GW2B Standard delivery pos. 13 Outside temperature sensor ATS Standard delivery pos. 24 Boiler water temperature sensor KTS Standard delivery pos. 25 Neutralising system See Viessmann pricelistrR ON/OFF switch On site6 DHW cylinder See Viessmann pricelist7 Cylinder temperature sensor STS Standard delivery of

Vitotronic 200 and 300or7438 702 for the Vitotronic100

8 Circulation pump for cylinder heating UPSB See Viessmann pricelist9 DHW circulation pump ZP See Vitoset pricelist

Gas condensing boiler, ≤ 1000 kW (cont.)

System examples VIESMANN 97

5822

471

GB

3

Page 95: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

ID: 4605076_1404_07Pos. Title Part no.qP Heating circuit I On siteqW Heating circuit pump M2 (heating circuit I) On site Extension kit for one heating circuit with mixer comprising 7441 998qQ Flow temperature sensor M2 (heating circuit I)

and

qE Mixer motor M2 (heating circuit I) or qQ – Contact temperature sensor

or7426 463

– Immersion temperature sensorSensor well R½ x 100Sensor well R½ x 150

7438 7027816 0357817 326

and qE Mixer motor for flanged mixer M2 (heating circuit I) See Viessmann pricelistqR Heating circuit II On siteqZ Heating circuit pump M3 (heating circuit II) On site Extension kit for one heating circuit with mixer comprising 7441 998qT Flow temperature sensor M3 (heating circuit II)

and

qU Mixer motor M3 (heating circuit II) or qT – Contact temperature sensor

or7426 463

– Immersion temperature sensorSensor well R½ x 100Sensor well R½ x 150

7438 7027816 0357817 326

and qU Mixer motor for flanged mixer M3 (heating circuit II) See Viessmann pricelist

Gas condensing boiler, ≤ 1000 kW (cont.)

98 VIESMANN System examples

3

5822

471

GB

Page 96: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

ID: 4605076_1404_07Pos. Title Part no. Accessories qI Plug-in adaptor for external safety equipment 7164 404qO Minimum pressure switch or limiter SDB 7438 030wP Maximum pressure limiter SDB 7438 025wQ Water level limiter (low water indicator) WB See Viessmann pricelistwW Central fault message system S On sitewE Flue gas temperature sensor AGS 7452 531wR Vitotrol 200A

orZ008 341

Vitotrol 300A Z008 342 As an alternative to hardwired remote control units, the following wireless accessory may be used q-P Wireless base station Z011 413q-Q Vitotrol 200 RF Z011 219q-W Vitotrol 300 RF with table-top dock Z011 410q-E Vitotrol 300 RF with wall mounting bracket Z011 412q-R Wireless outside temperature sensor 7455 213q-T Wireless repeater 7456 538wT Radio clock receiver 7450 563ePeQ

eW

eE

EA1 extension:1 analogue input (0 to 10 V)– Specifying the set boiler water temperature3 digital inputs– External changeover of the operating status for heating circuits 1 to 3, may be switched individually

(with weather-compensated control unit)– External blocking with central fault message– Fault messages– Brief operation of DHW circulation pump (with weather-compensated control unit)1 switching output (floating changeover contact)– Switching a feed pump to a substation– Signalling reduced mode for a heating circuit

7452 091

eReTeZeU

External hook-ups– External demand– External changeover of stepped/modulating burners– External blocking/mixer close– External operating program changeover/mixer open

On site

rP KM BUS distributor, for several KM BUS subscribers 7415 028 KM BUS subscribers:

– EA1 extension– Vitotrol 200A, 300A– Wireless base station

See Viessmann pricelist

rQ LON communication module for communication with the following components: 7172 173 Vitotronic 200-H (for regulating additional heating circuits) rW Vitocom 100, type GSM2 Z011 396 / Z011 388rE Vitocom 100, type LAN1 with communication module Z011 224rR Vitocom 200, type LAN2 with communication module Z011 390rZ Vitocom 300, type LAN3 with LON communication module Z011 399

Gas condensing boiler, ≤ 1000 kW (cont.)

System examples VIESMANN 99

5822

471

GB

3

Page 97: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Electrical installation scheme

Main PCB 230 V

ZP

230

V/ 5

0 H

z

9

151

90

41

150

156

156

40

50

29

20 A1

52 A1

21

28

UPSB 8

184

4

4

SDB

SDB

WB

90

414

7

145

2

2

230 V/ 50 Hz

S

719

20

21

22

40

145

44

30

40

PCB ME

Main PCB

2 GW2B

N

L

L

N

L

N

L

N

L

N

N

L

N

L

NM1~

L

N

M1~

1

32

P

P

ID: 4605076_1404_07

Gas condensing boiler, ≤ 1000 kW (cont.)

100 VIESMANN System examples

3

5822

471

GB

Page 98: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Main PCB LV connections

Low

vol

tage

STS

1

146

143

15 12

145

145

LON

AGS

349

3/2 12

KTS

5B

5A

17B

17A

145

ATS KM BUS145

145

40

40A

157

0-10V

145

34

DE3

145

DE2

DE1

156

1234

Main PCB

EA1

KM BUS distributor

L

N

GW2B

12

VTS M22 M2

12

VTS M32 M3

20 M2

20 M3

52 M2

52 M3

M2

M3

156

230

V/5

0 H

z

HKP M2

HCP M3

40

PCB ME

Main PCB

/ /

/ /

1

32

1

32

1

32

1

32

L

N

S

12

12

12

1234

1234 1

32

12

1

32

L

N

L

N

N

N

M1~

M1~

M1~

M1~

N

L

2

3435

3637

23

7

4

25

3

18

41 43 44

11

15

12

16

13

17

2

30

40

24 42

32

33

2

100

46

31

32

32

ID: 4605076_1404_07

Gas condensing boiler, ≤ 1000 kW (cont.)

System examples VIESMANN 101

5822

471

GB

3

Page 99: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

3.3 Multi boiler system: Vitocrossal with several heating circuits and a low temperatureheating circuit

ID: 4605077_1404_07

ApplicationsHeating system with distributor located near the boiler, as multi boilersystem with two condensing boilers switched in parallel.The boiler control unit regulates the boiler sequence control and down-stream heating circuits.Use, for example, in the living space with low temperature and under-floor heating systems, in swimming pools and clinics/spa centres.

Main components■ Vitocrossal 300 (from 87 kW)■ Vitotronic 100 (type GC1B) for each boiler in the multi boiler system

and one Vitotronic 300-K (type MW1B) per multi boiler systemorVitotronic 100 (type GC1B) for each boiler in a multi boiler systemwith a Vitocontrol control panel and weather-compensated controlunit

■ Vitotronic 200-H

Function descriptionThe Vitocrossal boilers are operated via a weather-compensatedboiler control unit with modulating boiler water temperature – two-stage or modulating burners are controlled. The Vitocrossal 200 boilers are equipped with a single return con-nector. Heating circuits with higher and lower return temperatures areconnected to the return connector via a return collector.

The Vitocrossal 300 1 and qP are equipped with two return con-nectors. Heating circuits wP and wR with a higher return temperatureare connected to return connector "KR 2", and heating circuit wI withlower temperatures is connected to return connector "KR 1". Note:Connect at least 15 % of the rated heating output to return connector"KR 1".Because of the separate return connections for heating circuits withhigh and low return temperatures, the Vitocrossal 300 can achievehigh levels of efficiency, even if the larger proportion of consumers isoperated with low temperatures. The heating circuits connected toVitotronic 300-K 7 or 200-H eT are controlled without any majorinstallation effort. A remote control unit can be connected to eachheating circuit.During heating operation, the boiler water temperature is raised to alevel that is higher, by an adjustable differential, than the highest heat-ing circuit flow temperature.

DHW heatingThe DHW is heated up when the actual temperature falls below theset DHW temperature selected at cylinder temperature sensor qU,subject to cylinder heating being enabled by the time switch. The boilerwater temperature is raised to the set cylinder temperature +20 K, andcirculation pump for cylinder heating qI starts if the boiler water tem-perature is 7 K above the cylinder temperature. If the heating circuits are regulated via Vitotronic 300-K 7, heatingcircuit pumps M2 wW and M3 wZ are switched off and mixers M2 wEand M3 wU are closed, subject to priority being enabled.

Heating modeDepending on the control unit used, the flow temperature of heatingcircuits wP,wR and wI is operated in modulating mode subject to theoutside temperature. The boiler water temperature is regulated 8 Khigher than the set flow temperature.

NoteThis scheme is a general system example. Refer to the relevanttechnical guides when designing for specific applications.

Required codes

ID: 4605077_1404_07Service address Vitotronic 300-K, type MW1B / pos. 7Group Code Function"General" "00:8" Two heating circuits with mixer M2 (heating circuit 2) and M3 (heating

circuit 3) with DHW heating"Cascade" "35:2" Number of connected heat generators"Cascade" "38:1" Changeover of lead boiler (monthly)Service address Vitotronic 100, type GC1B / pos. 8"Boiler" "01:2" Multi boiler system with cascade control via LON"Boiler" "02:1"

or "02:2"

Two-stage burner (delivered condition)

Modulating burner"Boiler" "0d:0" Without Therm-ControlService address Vitotronic 100, type GC1B / pos. qR"General" "77:2" LON subscriber number"Boiler" "01:2" Multi boiler system with cascade control via LON"Boiler" "02:1"

or "02:2"

Two-stage burner (delivered condition)

Modulating burner"Boiler" "07:2" Consecutive boiler number in multi boiler systems"Boiler" "0d:0" Without Therm-ControlService address Vitotronic 200-H, type HK1B / pos. eT"General" "81:3" Control unit receives the time"General" "97:1" Control unit receives outside temperature

Gas condensing boiler, ≤ 1000 kW (cont.)

102 VIESMANN System examples

3

5822

471

GB

Page 100: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Hydraulic installation scheme ID: 4605077_1404_07

KW

WW

--7/

5A--

16

17

19

35

20

21

22

23

24

25

26

27

28

30

31

33

--7/

2M2-

-

--7/

20M

2--

--7/

52M

2--

--7/

2M3-

-

--7/

20M

3--

--7/

52M

3--

--35

/20M

1--

--35

/52M

1--

--230V----52M1----20M1----3/2--

18 --7/

21--

--7/

28--

413

6

--8/3/2--

--7/1--

--14/3/2--

--LON--

7

--230V----21----28--

--52M2----20M2----52M3----20M3--

--2M3----2M2----5A----3/2----1----KM-Bus----LON--

14

--230V----52A1--

--LON----LON----3/2--

10

5--

7/3/

2-- 9

29

33

34

oder

29--

35/3

/2--

--8/52A1--

3

--14/52A1-- 12

2

15

32

34

11

--8/52A1--

--14/52A1--

28

--35

/20M

1--

--35

/20M

1--

--35

/3/2

--

--35

/20M

1--

--35

/52M

1--

11

--14/52A1--

HK

1B

GC

1B8

--230V----52A1--

--LON----LON----3/2--

1 GC

1B

MW

1B

Note: This scheme is a general example without shut-off valves or safety equipment. This does not replace the need for on-site engineering.

Gas condensing boiler, ≤ 1000 kW (cont.)

System examples VIESMANN 103

5822

471

GB

3

Page 101: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Equipment required

ID: 4605077_1404_07Pos. Title Part no.1 Boiler I See Viessmann pricelist2 Motorised butterfly valve (for low temperature heating circuit) See Vitoset pricelist3 Motorised butterfly valve (for boiler I) See Vitoset pricelist4 Boiler water temperature sensor KTS Standard delivery pos. 85 Flow temperature sensor Standard delivery pos. 76 Outside temperature sensor ATS Standard delivery pos. 77 Vitotronic 300-K, type MW1B Standard delivery pos. 18 Vitotronic 100, type GC1B Standard delivery pos. 19 Neutralising system See Viessmann pricelistqP Boiler II See Viessmann pricelistqQ Motorised butterfly valve (for low temperature heating circuit return) See Vitoset pricelistqW Motorised butterfly valve (for boiler II) See Vitoset pricelistqE Boiler water temperature sensor KTS Standard delivery pos. 14qR Vitotronic 100, type GC1B Standard delivery pos. 10qT Neutralising system See Viessmann pricelistqZ DHW cylinder See Viessmann pricelistqU Cylinder temperature sensor STS Standard delivery pos. 7qI Circulation pump for cylinder heating UPSB See Viessmann pricelistqO DHW circulation pump ZP See Vitoset pricelistwP Heating circuit I On sitewW Heating circuit pump M2 (heating circuit I) On site Extension kit for one heating circuit with mixer comprising 7441 998wQ Flow temperature sensor M2 (heating circuit I)

and

wE Mixer motor M2 (heating circuit I) or wQ – Contact temperature sensor

or7426 463

– Immersion temperature sensorSensor well R½ x 100Sensor well R½ x 150

7438 7027816 0357817 326

and wE Mixer motor for flanged mixer M2 (heating circuit I) See Viessmann pricelistwR Heating circuit II On sitewZ Heating circuit pump M3 (heating circuit II) On site Extension kit for one heating circuit with mixer comprising 7441 998wT Flow temperature sensor M3 (heating circuit II)

and

wU Mixer motor M3 (heating circuit II) or wT – Contact temperature sensor

or7426 463

– Immersion temperature sensor 7438 702 and wU Mixer motor for flanged mixer M3 (heating circuit II) See Viessmann pricelistwI Heating circuit III (low temperature heating circuit) On siteeE Heating circuit pump M1 (heating circuit III) On site Extension kit for one heating circuit with mixer comprising 7441 998wO Flow temperature sensor M1 (heating circuit III)

and

eR Mixer motor M1 (heating circuit III) or wO – Contact temperature sensor

or7426 463

– Immersion temperature sensor 7438 702 and eR Mixer motor for flanged mixer M1 (heating circuit III) See Viessmann pricelisteT Vitotronic 200-H, type HK1B

andZ009 462

LON communication module for pos. 35and

7172 173

LON cable 7143 495eZ Outside temperature sensor ATS (ATS value can be accepted by the Vitotronic 300-K) Standard delivery pos. 35

Gas condensing boiler, ≤ 1000 kW (cont.)

104 VIESMANN System examples

3

5822

471

GB

Page 102: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

ID: 4605077_1404_07Pos. Title Part no. or wI Heating circuit III (underfloor heating circuit) On sitewO Flow temperature sensor M1 (heating circuit III) Standard delivery pos. 35eR Mixer motor M1 (heating circuit III) Standard delivery pos. 35 or wO – Contact temperature sensor

or7426 463

– Immersion temperature sensor 7438 702 and eR Mixer motor for flanged mixer M1 (heating circuit III) See Viessmann pricelisteT Vitotronic 200-H, type HK1B

andZ009 462

LON communication moduleand

7172 173

LON cable 7143 495eZ Outside temperature sensor ATS (ATS value can be accepted by the Vitotronic 300-K) Standard delivery pos. 35eP Temperature limiter for limiting the maximum temperature of underfloor heating systems – Immersion thermostat

or7151 728

– Contact thermostat 7151 729eQ Heating circuit pump M1 (secondary) On siteeW Vitotrans 100 See Viessmann pricelisteE Heating circuit pump M1 (primary) On siterI Contactor relay 7814 681 Boiler accessories eI Plug-in adaptor for external safety equipment 7164 404eO Maximum pressure limiter SDB 7438 025rP Minimum pressure switch or limiter SDB 7438 030rQ Water level limiter (low water indicator) WB See Viessmann pricelistrE Flue gas temperature sensor AGS 7452 531zR - External changeover of stepped/modulating burners zI - External blocking/boiler zO - Start boiler as the last one in the sequence Accessories rT ON/OFF switch On sitetP Central fault message system S On sitetW Vitotrol 200A

orZ008 341

Vitotrol 300A Z008 342 As an alternative to hardwired remote control units, the following wireless accessory may be used q-P Wireless base station Z011 413q-Q Vitotrol 200 RF Z011 219q-W Vitotrol 300 RF with table-top dock Z011 410q-E Vitotrol 300 RF with wall mounting bracket Z011 412q-R Wireless outside temperature sensor 7455 213q-T Wireless repeater 7456 538tE KM BUS distributor, for several KM BUS subscribers

– EA1 extension– Vitotrol 200A, 300A– Wireless base station

7415 028

tR Radio clock receiver 7450 563tZ Contactor relay 7814 681zP EA1 extension 7452 091zQ 1 switching output (floating changeover contact)

- Switching a feed pump to a substation- Signalling reduced mode for one heating circuit

zW 1 analogue input (0 – 10 V)- Set flow temperature default

zE 3 digital inputs- External changeover of operating state for heating circuits 1 to 3, may be switched individually - External blocking with central fault message facility- Fault messages- Brief operation of the DHW circulation pump

External hook-ups On sitezT - External blocking/mixer close zZ - External demand zU - External operating program changeover/mixer open uQ Vitocom 300, type LAN3 Z011 555

Gas condensing boiler, ≤ 1000 kW (cont.)

System examples VIESMANN 105

5822

471

GB

3

Page 103: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Electrical installation scheme

LP A2

1

146

143

145

145

LON

3/2 12

5B

5A

17B

17A 1234

Low

vol

tage

12 M3

1M22

2 M3

M2

LP A1

2

STS

VTS

ATS

Low

vol

tage

ZP

230

V/5

0 H

z

156

40

50

29

20 A1

52 A1

21

28

UPSB

LP A3

S

40

M3

M2

M3

M220

52

52

20 M3

M2

M3

M2

230

V/5

0 H

z

40 156

LON

230 V/50 Hz

MW1B MW1B

230 V/50 Hz

45

/ / /

L

N40

40A

157

0-10V

145

12

56DE3

34DE2

DE1

EA1

34

KM BUS145

145

145

KM BUS distributor

/

1

32

1

32

1

32

1234

1234

L

N

L

N

L

N

L

N

N

L

N

L

NM1~

M1~

L

N

N

M1~

M1~

NM1~

L

N

M1~

N

L

N

L

7

7 45

50

16

19

66

6567

17

5

54

6

708 14

7

21

25

22

26

23

27

7

35 71

L

N

S

12

12

1

32

1

32

1

32

53

52 100

63

62

63

63

61

60

ID: 4605077_1404_07

Gas condensing boiler, ≤ 1000 kW (cont.)

106 VIESMANN System examples

3

5822

471

GB

Page 104: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

230

V/ 5

0 H

z

8

151

90

41

150

156

156

40

50

29

20 A1

52 A1

21

28

LP A3

M1~

384

4

4

SDB

SDB

WB145

7145

90

41

7

S

LP A2

Low

vol

tage

KTS 13

AGS

1

146

143

15 12

145

145

LON

3/2 12

5 B

5 A

17 B

17 A 1234

14

8 14

4

39

40

41

2

50

4

43

38145

LON 7 8 14 35

/

/ / /

/

/

3

230 V/ 50 Hz

45

69

64

68

/ 11 12//2X

GC1B

L

N

L

N

L

N

L

N

N

L

N

L

N

L

N

1

32

P

P

1

32

1

32

1

32

1234

1234

N

L

ID: 4605077_1404_07

Gas condensing boiler, ≤ 1000 kW (cont.)

System examples VIESMANN 107

5822

471

GB

3

Page 105: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

230

V/5

0 H

z

156

40

50

29

20 M1

52 M1

21

28

LP A3

M1M1~

S

LP A2

Low

vol

tage

M1

1

146

143

145

145

LON

3/2 12

5B

5A

17B

17A 1234

LON

230 V/50 Hz

ATS

HK1B

/ / /

N

L

M1~

14

13A1

A2 24

23

M1~

230 V/50 Hz

M1

M1

L

N

L

N

L

N

N

L

N

L

N

1

32

1

32

1

32

1234

1234

N

L

35

45

50

34

29

36

7 870

14 71

30

31

33

48

ID: 4605077_1404_07

Gas condensing boiler, ≤ 1000 kW (cont.)

108 VIESMANN System examples

3

5822

471

GB

Page 106: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Wiring diagram for the connection of motorised butterfly valvesfor Vitocrossal 300

?

156156

N N

L N52

N

52

ID: 4605077_1404_07

| Open~ Close

gS Plug on the Vitotronic 100aBH Plug on the Vitotronic 100

Gas condensing boiler, ≤ 1000 kW (cont.)

System examples VIESMANN 109

5822

471

GB

3

Page 107: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

3.4 Single boiler system with Vitocrossal

ID: 4605528_1404_02

ApplicationsHeating system with distributor installed close to the boiler.The boiler control unit regulates the downstream heating circuits thatcan be operated with various temperatures.

Main components■ Vitocrossal 200 (CM2 400 - 620 kW)■ Vitotronic 300, type GW4B

Function descriptionThe Vitocrossal 1 is operated via a weather-compensated boilercontrol unit 2 with modulating boiler water temperature – modulatingburners are controlled. During heating operation, the boiler water tem-perature is raised to a level that is higher, by an adjustable differential,than the highest heating circuit flow temperature.Vitotronic 300 (type GW4B) 2 has two connected heating circuitsqP and qR, which are controlled without any major installation effort.A remote control unit can be connected to each heating circuit.

DHW heatingThe DHW is heated up when the actual temperature falls below theset DHW temperature selected at cylinder temperature sensor 7,subject to cylinder heating being enabled by the time switch. The boilerwater temperature is raised to the set DHW temperature +20 K, andcirculation pump for cylinder heating 8 starts if the boiler water tem-perature is 7 K above the DHW cylinder temperature. If the heating circuits are regulated via the Vitotronic 2, heating circuitpumps M2 qW and M3 qZ are switched off and mixers M2 qE and M3qU are closed, subject to absolute priority being enabled.Subject to modulating priority, heating circuit pumps M2 qW and M3qZ remain on, and mixers M2 qE and M3 qU are closed far enoughfor the set boiler water temperature for cylinder heating to be reached.In this case, DHW cylinder 6 and heating circuits qP and qR areheated simultaneously.

Heating modeDepending on the control unit used, the flow temperature of heatingcircuits qP and qR is operated in modulating mode subject to the out-side temperature. The boiler water temperature is regulated 8 K higherthan the set flow temperature.

NoteThis scheme is a general system example. Refer to the relevanttechnical guides when designing for specific applications.

Required codes

ID: 4605528_1404_02"General" "00:8" Two heating circuits with mixer M2 (heating circuit 2) and M3 (heating

circuit 3) with DHW heating

Gas condensing boiler, ≤ 1000 kW (cont.)

110 VIESMANN System examples

3

5822

471

GB

Page 108: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Hydraulic installation scheme ID: 4605528_1404_02

KW

WW

--2/2M2--

--2/20M2--

--2/52M2--

--2/2M3--

--2/20M3--

--2/52M3--

--2/21--

--2/28--

--2/

1--

--2/5A--

GW4B2

--2M

3--

--2M

2--

--5A-

---1

----K

M B

US-

-

--20M

3--

--52M

3--

--20M

2--

--52M

2--

--28-

---2

1--

--230

V--

16

5

7

34

9

8

qQ qT

qP qR

qW

qE

qZ

qU

Note: This scheme is a general example without shut-off valves or safety equipment. This does not replace the need for on-site engineering.

Equipment required

ID: 4605528_1404_02Pos. Title Part no.1 Boiler See Viessmann pricelist2 Vitotronic 300, type GW4B Standard delivery pos. 13 Outside temperature sensor ATS Standard delivery pos. 24 Boiler water temperature sensor KTS (connection at burner control unit) Standard delivery pos. 15 Neutralising system See Viessmann pricelistrR ON/OFF switch On site6 DHW cylinder See Viessmann pricelist7 Cylinder temperature sensor STS Vitotronic 300 standard de-

livery8 Circulation pump for cylinder heating UPSB See Viessmann pricelist9 DHW circulation pump ZP See Vitoset pricelist

Gas condensing boiler, ≤ 1000 kW (cont.)

System examples VIESMANN 111

5822

471

GB

3

Page 109: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

ID: 4605528_1404_02Pos. Title Part no.qP Heating circuit I On siteqW Heating circuit pump M2 (heating circuit I) On site Extension kit for one heating circuit with mixer comprising 7441 998qQ Flow temperature sensor M2 (heating circuit I)

and

qE Mixer motor M2 (heating circuit I) or qQ – Contact temperature sensor

or7426 463

– Immersion temperature sensorSensor well R½ x 100Sensor well R½ x 150

7438 7027816 0357817 326

and qE Mixer motor for flanged mixer M2 (heating circuit I) See Viessmann pricelistqR Heating circuit II On siteqZ Heating circuit pump M3 (heating circuit II) On site Extension kit for one heating circuit with mixer comprising 7441 998qT Flow temperature sensor M3 (heating circuit II)

and

qU Mixer motor M3 (heating circuit II) or qT – Contact temperature sensor

or7426 463

– Immersion temperature sensorSensor well R½ x 100Sensor well R½ x 150

7438 7027816 0357817 326

and qU Mixer motor for flanged mixer M3 (heating circuit II) See Viessmann pricelist Accessories qI Plug-in adaptor for external safety equipment 7164 404qO Minimum pressure switch or limiter SDB 7438 030wP Maximum pressure limiter SDB 7438 025wQ Water level limiter (low water indicator) WB See Viessmann pricelistwW Central fault message system S On sitewR Vitotrol 200A

orZ008 341

Vitotrol 300A Z008 342 As an alternative to hardwired remote control units, the following wireless accessory may be used q-P Wireless base station Z011 413q-Q Vitotrol 200 RF Z011 219q-W Vitotrol 300 RF with table-top dock Z011 410q-E Vitotrol 300 RF with wall mounting bracket Z011 412q-R Wireless outside temperature sensor 7455 213q-T Wireless repeater 7456 538wT Radio clock receiver 7450 563

Gas condensing boiler, ≤ 1000 kW (cont.)

112 VIESMANN System examples

3

5822

471

GB

Page 110: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

ID: 4605528_1404_02Pos. Title Part no.ePeQ

eW

eE

EA1 extension:1 analogue input (0 to 10 V)– Specifying the set boiler water temperature3 digital inputs– External changeover of the operating status for heating circuits 1 to 3, may be switched individually

(with weather-compensated control unit)– External blocking with central fault message– Fault messages– Brief operation of DHW circulation pump (with weather-compensated control unit)1 switching output (floating changeover contact)– Switching a feed pump to a substation– Signalling reduced mode for a heating circuit

7452 091

eReZeU

External hook-ups– External demand– External blocking/mixer close– External operating program changeover/mixer open

On site

rP KM BUS distributor, for several KM BUS subscribers 7415 028 KM BUS subscribers:

– EA1 extension– Vitotrol 200A, 300A– Wireless base station

See Viessmann pricelist

rQ LON communication module for communication with the following components: 7172 173rW Vitotronic 200-H (for regulating additional heating circuits) rE Vitocom 100, type LAN1 with LON communication module Z011 224rT Vitocom 300, type LAN3 with LON communication module Z011 399rU Vitocom 100, type GSM2 Z011 396 / Z011 388rI Vitocom 200, type LAN2 with communication module Z011 390

Gas condensing boiler, ≤ 1000 kW (cont.)

System examples VIESMANN 113

5822

471

GB

3

Page 111: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Electrical installation scheme

Main PCB 230 V

ZP

230

V/5

0 H

z

9

151

90

41

150

156

156

40

50

29

20 A1

52 A1

21

28

UPSB 8

184

4

4

SDB

SDB

WB

41

7

145

2

2

230 V/50 Hz

S

719

20

21

22

40

145

44

30

40

PCB ME

Main PCB

2 GW4B

N

L

L

N

L

N

L

N

L

N

N

L

N

L

NM1~

L

N

M1~

1

32

P

P

ID: 4605528_1404_02

Gas condensing boiler, ≤ 1000 kW (cont.)

114 VIESMANN System examples

3

5822

471

GB

Page 112: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Main PCB LV connections

Low

vol

tage

STS

1

146

143

15 12

145

145

LON

349

3/2 12

5B

5A

17B

17A

145

ATS

1234

Main PCB

GW2B

12

VTS M22 M2

12

VTS M32 M3

20 M2

20 M3

52 M2

52 M3

M2

M3

156

230

V/5

0 H

z

HKP M2

HCP M3

40

PCB ME/ /

L

N40

40A

157

0-10V

145

12

56DE3

34DE2

DE1

EA1

34

KM BUS145

145

145

KM BUS distributor

/ /

/

156

1

32

1

32

1

32

1234

1234

L

N

L

N

N

N

M1~

M1~

M1~

M1~

N

L

2

34

3637

7

25

3

18

41 42 43

11

15

12

16

13

17

2

45

L

N

S

12

12

1

32

1

32

1

32

40

24 47

32

31

32

32

33

2

30

48

100

ID: 4605528_1404_02

Gas condensing boiler, ≤ 1000 kW (cont.)

System examples VIESMANN 115

5822

471

GB

3

Page 113: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

3.5 Multi boiler system: Vitocrossal with several heating circuits

ID: 4605529_1404_02

ApplicationsHeating system with distributor located near the boiler, as multi boilersystem with two condensing boilers switched in parallel.The boiler control unit regulates the boiler sequence control and down-stream heating circuits.Use, for example, in the living space with low temperature and under-floor heating systems, in swimming pools and clinics/spa centres.

Main components■ Vitocrossal 200 (CM2 400 - 620 kW)■ Vitotronic 100 (type GC4B) for each boiler in the multi boiler system

and one Vitotronic 300-K (type MW1B) per multi boiler systemorVitotronic 100 (type GC4B) for each boiler in a multi boiler systemwith a Vitocontrol control panel and weather-compensated controlunit

■ Vitotronic 200-H

Function descriptionThe Vitocrossal boilers are operated via a weather-compensatedboiler control unit with modulating boiler water temperature – two-stage or modulating burners are controlled. The heating circuits connected to Vitotronic 300-K 7 or 200-H eT arecontrolled without any major installation effort. A remote control unitcan be connected to each heating circuit.During heating operation, the boiler water temperature is raised to alevel that is higher, by an adjustable differential, than the highest heat-ing circuit flow temperature.

DHW heatingThe DHW is heated up when the actual temperature falls below theset DHW temperature selected at cylinder temperature sensor qU,subject to cylinder heating being enabled by the time switch. The boilerwater temperature is raised to the set cylinder temperature +20 K, andcirculation pump for cylinder heating qI starts if the boiler water tem-perature is 7 K above the cylinder temperature. If the heating circuits are regulated via Vitotronic 300-K 7, heatingcircuit pumps M2 wW and M3 wZ are switched off and mixers M2 wEand M3 wU are closed, subject to priority being enabled.

Heating modeDepending on the control unit used, the flow temperature of heatingcircuits wP,wR and wI is operated in modulating mode subject to theoutside temperature. The boiler water temperature is regulated 8 Khigher than the set flow temperature.

NoteThis scheme is a general system example. Refer to the relevanttechnical guides when designing for specific applications.

Required codes

ID: 4605529_1404_02Service address Vitotronic 300-K, type MW1B / pos. 7Group Code Function"General" "00:8" Two heating circuits with mixer M2 (heating circuit 2) and M3 (heating

circuit 3) with DHW heating"Cascade" "35:2" Number of connected heat generators"Cascade" "38:1" Changeover of lead boiler (monthly)Service address Vitotronic 100, type GC4B / pos. 8"Boiler" "01:2" Multi boiler system with cascade control via LONService address Vitotronic 100, type GC4B / pos. qR"General" "77:2" LON subscriber number"Boiler" "01:2" Multi boiler system with cascade control via LON"Boiler" "07:2" Consecutive boiler number in multi boiler systemsService address Vitotronic 200-H, type HK1B / pos. eT"General" "81:3" Control unit receives the time"General" "97:1" Control unit receives outside temperature

Gas condensing boiler, ≤ 1000 kW (cont.)

116 VIESMANN System examples

3

5822

471

GB

Page 114: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Hydraulic installation scheme ID: 4605529_1404_02

KW

WW

--7/5A--

--7/2M2--

--7/20M2--

--7/52M2--

--7/2M3--

--7/20M3--

--7/52M3--

--35/20M1--

--35/52M1--

--7/21----7/28--

--7/

1--

--7/3/2--

--35/3/2--

--8/

52A

1--

--14

/52A

1--

--35/20M1--

--35/20M1--

HK1B

GC4B

MW1B

--LO

N--

--LO

N--

--52A

1--

--230

V--

GC4B

--LO

N--

--LO

N--

--52A

1--

--230

V--

--LO

N--

--145

----1

----3

/2--

--5A-

---2

M2-

---2

M3-

-

--230

V--

--21-

---2

8--

--52M

2--

--20M

2--

--52M

3--

--20M

3--

--20M

1--

--52M

1--

--230

V--

--LO

N--

--3/2

--

67

20

21

22

23

24

25

26

27

35

2928

31

32

3334

30

5

1819

3

4

12

13

159 1 10

148

16

Note: This scheme is a general example without shut-off valves or safety equipment. This does not replace the need for on-site engineering.

Equipment required

ID: 4605529_1404_02Pos. Title Part no.1 Boiler I See Viessmann pricelist3 Motorised butterfly valve (for boiler I) See Vitoset pricelist4 Boiler water temperature sensor KTS (connection at burner control unit) Standard delivery pos. 15 Flow temperature sensor Standard delivery pos. 76 Outside temperature sensor ATS Standard delivery pos. 77 Vitotronic 300-K, type MW1B Standard delivery pos. 18 Vitotronic 100, type GC4B Standard delivery pos. 19 Neutralising system See Viessmann pricelist

Gas condensing boiler, ≤ 1000 kW (cont.)

System examples VIESMANN 117

5822

471

GB

3

Page 115: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

ID: 4605529_1404_02Pos. Title Part no.qP Boiler II See Viessmann pricelistqW Motorised butterfly valve (for boiler II) See Vitoset pricelistqE Boiler water temperature sensor KTS Standard delivery pos. 10qR Vitotronic 100, type GC4B Standard delivery pos. 10qT Neutralising system See Viessmann pricelistqZ DHW cylinder See Viessmann pricelistqU Cylinder temperature sensor STS Standard delivery pos. 7qI Circulation pump for cylinder heating UPSB See Viessmann pricelistqO DHW circulation pump ZP See Vitoset pricelistwP Heating circuit I On sitewW Heating circuit pump M2 (heating circuit I) On site Extension kit for one heating circuit with mixer comprising 7441 998wQ Flow temperature sensor M2 (heating circuit I)

and

wE Mixer motor M2 (heating circuit I) or wQ – Contact temperature sensor

or7426 463

– Immersion temperature sensorSensor well R½ x 100Sensor well R½ x 150

7438 7027816 0357817 326

and wE Mixer motor for flanged mixer M2 (heating circuit I) See Viessmann pricelistwR Heating circuit II On sitewZ Heating circuit pump M3 (heating circuit II) On site Extension kit for one heating circuit with mixer comprising 7441 998wT Flow temperature sensor M3 (heating circuit II)

and

wU Mixer motor M3 (heating circuit II) or wT – Contact temperature sensor

or7426 463

– Immersion temperature sensor 7438 702 and wU Mixer motor for flanged mixer M3 (heating circuit II) See Viessmann pricelistwI Heating circuit III (low temperature heating circuit) On siteeE Heating circuit pump M1 (heating circuit III) On site Extension kit for one heating circuit with mixer comprising 7441 998wO Flow temperature sensor M1 (heating circuit III)

and

eR Mixer motor M1 (heating circuit III) or wO – Contact temperature sensor

or7426 463

– Immersion temperature sensor 7438 702 and eR Mixer motor for flanged mixer M1 (heating circuit III) See Viessmann pricelisteT Vitotronic 200-H, type HK1B

andZ009 462

LON communication module for pos. 35and

7172 173

LON cable 7143 495eZ Outside temperature sensor ATS (ATS value can be accepted by the Vitotronic 300-K) Standard delivery pos. 35

Gas condensing boiler, ≤ 1000 kW (cont.)

118 VIESMANN System examples

3

5822

471

GB

Page 116: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

ID: 4605529_1404_02Pos. Title Part no. or wI Heating circuit III (underfloor heating circuit) On sitewO Flow temperature sensor M1 (heating circuit III) Standard delivery pos. 35eR Mixer motor M1 (heating circuit III) Standard delivery pos. 35 or wO – Contact temperature sensor

or7426 463

– Immersion temperature sensor 7438 702 and eR Mixer motor for flanged mixer M1 (heating circuit III) See Viessmann pricelisteT Vitotronic 200-H, type HK1B

andZ009 462

uP LON communication moduleand

7172 173

LON cable 7143 495eZ Outside temperature sensor ATS (ATS value can be accepted by the Vitotronic 300-K) Standard delivery pos. 35eP Temperature limiter for limiting the maximum temperature of underfloor heating systems – Immersion thermostat

or7151 728

– Contact thermostat 7151 729eQ Heating circuit pump M1 (secondary) On siteeW Vitotrans 100 See Viessmann pricelisteE Heating circuit pump M1 (primary) On siterI Contactor relay 7814 681 Boiler accessories eI Plug-in adaptor for external safety equipment 7164 404eO Maximum pressure limiter SDB 7438 025rP Minimum pressure switch or limiter SDB 7438 030rQ Water level limiter (low water indicator) WB See Viessmann pricelistzI - External blocking/boiler zO - Start boiler as the last one in the sequence Accessories rT ON/OFF switch On sitetP Central fault message system S On sitetW Vitotrol 200A

orZ008 341

Vitotrol 300A Z008 342 As an alternative to hardwired remote control units, the following wireless accessory may be used q-P Wireless base station Z011 413q-Q Vitotrol 200 RF Z011 219q-W Vitotrol 300 RF with table-top dock Z011 410q-E Vitotrol 300 RF with wall mounting bracket Z011 412q-R Wireless outside temperature sensor 7455 213q-T Wireless repeater 7456 538tE KM BUS distributor, for several KM BUS subscribers

– EA1 extension– Vitotrol 200A, 300A– Wireless base station

7415 028

tR Radio clock receiver 7450 563zP EA1 extension 7452 091zQ 1 switching output (floating changeover contact)

- Switching a feed pump to a substation- Signalling reduced mode for one heating circuit

zW 1 analogue input (0 – 10 V)- Set flow temperature default

zE 3 digital inputs- External changeover of operating state for heating circuits 1 to 3, may be switched individually - External blocking with central fault message facility- Fault messages- Brief operation of the DHW circulation pump

External hook-ups On sitezT - External blocking/mixer close zZ - External demand zU - External operating program changeover/mixer open uP LON communication module (part of standard delivery for Vitotronic 300-K) 7172 173uQ Vitocom 300, type LAN3 Z011 555

Gas condensing boiler, ≤ 1000 kW (cont.)

System examples VIESMANN 119

5822

471

GB

3

Page 117: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Electrical installation scheme

LP A2

1

146

143

145

145

LON

3/2 12

5B

5A

17B

17A 1234

Low

vol

tage

12 M3

1M22

2 M3

M2

LP A1

2

STS

VTS

ATS

Low

vol

tage

ZP

230

V/5

0 H

z

156

40

50

29

20 A1

52 A1

21

28

UPSB

LP A3

S

40

M3

M2

M3

M220

52

52

20 M3

M2

M3

M2

230

V/5

0 H

z

40 156

LON

230 V/50 Hz

MW1B MW1B

230 V/50 Hz

45

/ / /

L

N40

40A

157

0-10V

145

12

56DE3

34DE2

DE1

EA1

34

KM BUS145

145

145

KM BUS distributor

/

1

32

1

32

1

32

1234

1234

L

N

L

N

L

N

L

N

N

L

N

L

NM1~

M1~

L

N

N

M1~

M1~

NM1~

L

N

M1~

N

L

N

L

7

7 45

50

16

19

66

6567

17

5

54

6

708 14

7

21

25

22

26

23

27

7

35 71

L

N

S

12

12

1

32

1

32

1

32

53

52 100

63

62

63

63

61

60

ID: 4605529_1404_02

Gas condensing boiler, ≤ 1000 kW (cont.)

120 VIESMANN System examples

3

5822

471

GB

Page 118: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

230

V/5

0 H

z

151

90

41

150

156

156

40

50

29

20 A1

52 A1

21

28

LP A3

M1~

4

4

4

SDB

SDB

WB145

7145

41

7

S

LP A2

Low

vol

tage

1

146

143

15 12

145

145

LON

3/2 12

5B

5A

17B

17A 1234

145

LON /

/

/

230 V/50 Hz

/

GC4B

/ / /

L

N

L

N

L

N

L

N

N

L

N

L

N

L

N

1

32

P

P

1

32

1

32

1

32

1234

1234

N

L

8 14

8 14

45

38

39

40

41

50

3 12

6968

38

707 8 14 35 71

ID: 4605529_1404_02

Gas condensing boiler, ≤ 1000 kW (cont.)

System examples VIESMANN 121

5822

471

GB

3

Page 119: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

230

V/5

0 H

z

156

40

50

29

20 M1

52 M1

21

28

LP A3

M1M1~

S

LP A2

Low

vol

tage

M1

1

146

143

145

145

LON

3/2 12

5B

5A

17B

17A 1234

LON

230 V/50 Hz

ATS

HK1B

/ / /

N

L

M1~

14

13A1

A2 24

23

M1~

230 V/50 Hz

M1

M1

L

N

L

N

L

N

N

L

N

L

N

1

32

1

32

1

32

1234

1234

N

L

35

45

50

34

29

36

7 870

14 71

30

31

33

48

ID: 4605529_1404_02

Gas condensing boiler, ≤ 1000 kW (cont.)

122 VIESMANN System examples

3

5822

471

GB

Page 120: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

4.1 Overview of system examples

Vitocrossal 200/300 with MW1B/GC1B

Vitocrossal and low temperature boiler with Therm-Control with severalheating circuits and one low temperature heating circuit

Vitocrossal and low temperature boiler with 3-way mixing valve andseveral heating circuits plus one low temperature heating circuit

See page 124

ID: 4605079_1404_08

See page 140

ID: 4605081_1404_07Vitocrossal and low temperature boiler with several heating circuits andone low temperature heating circuit – low temperature boiler with shuntpump

See page 132

ID: 4605080_1404_08

Vitocrossal 200 with MW1B/GC4B

Vitocrossal and low temperature boiler with Therm-Control with severalheating circuits and one low temperature heating circuit

Vitocrossal and low temperature boiler with 3-way mixing valve andseveral heating circuits plus one low temperature heating circuit

See page 148

ID: 4605530_1404_02

See page 164

ID: 4605532_1404_02Vitocrossal and low temperature boiler with several heating circuits andone low temperature heating circuit – low temperature boiler with shuntpump

See page 156

ID: 4605531_1404_03

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers

System examples VIESMANN 123

5822

471

GB

4

Page 121: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

4.2 Multi boiler system: Vitocrossal and low temperature boiler with Therm-Control withseveral heating circuits and one low temperature heating circuit

ID: 4605079_1404_08

ApplicationsMulti boiler system, comprising condensing and low temperature boil-ers for use in heating and DHW heating systems as well as in air han-dling systems. The condensing boiler for covering the base load andthe low temperature boiler as a peak load boiler are hydraulically con-nected in parallel according to the Tichelmann principle.

Main components■ Vitocrossal 200/300

andVitoplex 200/300 or Vitoradial 300-T or Vitorond 200

■ Vitotronic 100 (type GC1B) for each boiler in the multi boiler systemand one Vitotronic 300-K (type MW1B) per multi boiler systemorVitotronic 100 (type GC1B) for each boiler in a multi boiler systemwith a Vitocontrol control panel and weather-compensated controlunit

■ Therm-Control for operating the Vitoplex and Vitorond boilers with-out return temperature raising facility

■ Vitotronic 200-H

Function descriptionVitocrossal (lead boiler) 1 and downstream low temperature boilers8 are operated via a weather-compensated control system with mod-ulating boiler water temperature and load-dependent sequence control– two-stage or modulating burners are controlled. The control systemthat is connected via the LON BUS regulates a boiler water tempera-ture that is higher than the highest heating circuit flow temperature byan adjustable differential. The heating system can be operated accord-ing to a separate heating curve.The Vitocrossal 200 boilers are equipped with a single return con-nector. Heating circuits with higher and lower return temperatures areconnected to the return connector via a return collector.Vitocrossal 300 boilers 1 are equipped with two return connectors.Heating circuits qU and wQ with a higher return temperature are con-nected to return connector "KR 2", and heating circuits wT with lowertemperatures are connected to return connector "KR 1". Note: Connectat least 15 % of the rated heating output to return connector "KR 1".

Because of the separate return connections for heating circuits withhigh and low return temperatures, the Vitocrossal 300 can achievehigh levels of efficiency, even if the larger proportion of consumers isoperated with low temperatures.For the Vitotronic control system, Vitotronic 100 boiler control units6 and 9 are interconnected with weather-compensatedVitotronic 300-K cascade control unit 5 and Vitotronic 200-H heatingcircuit control unit wO via a LON BUS. This regulates various controlassemblies without additional installation effort.The Therm-Control of the low temperature boiler regulates motorisedbutterfly valve qQ and must reduce the boiler water flow rate of theVitoplex in the start-up phase (e.g. during commissioning or afternight or weekend shutdown).Equip boilers without Therm-Control with a return temperature raisingfacility according to prevailing operating conditions.By adjusting Vitotronic 300-K 5, the condensing boiler can always beselected as the lead boiler. This ensures high efficiency at all times.When using the Vitoradial 300-T, the circulation pump for the down-stream flue gas heat exchanger is connected as per the Vitotrans 300.See system example "Boiler with Vitotrans 300 flue gas/water heatexchanger".

DHW heatingThe DHW is heated up when the actual temperature falls below theset DHW temperature selected at cylinder temperature sensor qR,subject to cylinder heating being enabled by the time switch. The boilerwater temperature is raised to the set cylinder temperature +20 K, andcirculation pump for cylinder heating qT starts if the boiler water tem-perature is 7 K above the cylinder temperature. If the heating circuits are regulated via the Vitotronic 5, heating circuitpumps M2 qO and M3 wE are switched off and mixers M2 wP and M3wR are closed, subject to priority being enabled.

Heating modeDepending on the control unit used, the flow temperature of heatingcircuits qU,wQ and wT is operated in modulating mode subject to theoutside temperature. The boiler water temperature is regulated 8 Khigher than the set flow temperature.

NoteThis scheme is a general system example. Refer to the relevanttechnical guides when designing for specific applications.

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

124 VIESMANN System examples

4

5822

471

GB

Page 122: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Required codes

ID: 4605079_1404_08Service address Vitotronic 300-K, type MW1B / pos. 5Group Code Function"General" "00:8" Two heating circuits with mixer M2 (heating circuit 2) and M3 (heating

circuit 3) with DHW heating"Cascade" "35:2" Number of connected heat generators"Cascade" "39:1" Permanent lead boiler is boiler 1"Cascade" "3A:2" Permanent last boiler is boiler 2Service address Vitotronic 100, type GC1B / pos. 6"Boiler" "01:2" Multi boiler system with cascade control via LON"Boiler" "02:1"

or "02:2"

Two-stage burner (delivered condition)

Modulating burner"Boiler" "0d:0" Without Therm-ControlService address Vitotronic 100, type GC1B / pos. 9"General" "77:2" LON subscriber number"Boiler" "01:2" Multi boiler system with cascade control via LON"Boiler" "02:1"

or "02:2"

Two-stage burner (delivered condition)

Modulating burner"Boiler" "07:2" Consecutive boiler number in multi boiler systemsService address Vitotronic 200-H, type HK1B / pos. wO"General" "81:3" Control unit receives the time"General" "97:1" Control unit receives outside temperature

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

System examples VIESMANN 125

5822

471

GB

4

Page 123: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Hydraulic installation scheme ID: 4605079_1404_08

KW

WW

--5/5A--

13

14

16

29

17

18

19

20

21

22

23

24

25

26

27

28

--5/2M2--

--5/20M2--

--5/52M2--

--5/2M3--

--5/20M3--

--5/52M3--

--29/3/2M1--

--29/20M1--

--29/52M1--

--23

0V--

--52

M1-

---

20M

1--

--3/

2M1-

-

15--5/21--

--5/28--

2

1012

4

--6/

3/2-

-

--5/

1--

--9/

17A

--

--9/

3/2-

-

--LO

N--

5

--23

0V--

--21

----

28--

--52

M2-

---

20M

2--

--52

M3-

---

20M

3--

--2M

3--

--2M

2--

--5A

----

3/2-

---

1--

--K

M-B

us--

--LO

N--

9

--23

0V--

--52

A1-

-

--LO

N--

--LO

N--

--17

A--

--3/

2--

8

3--5/3/2--

7

--9/52A1--

11

HK1BMW1B

GC1B6

--23

0V--

--LO

N--

--LO

N--

--3/

2--

1

GC1B

Note: This scheme is a general example without shut-off valves or safety equipment. This does not replace the need for on-site engineering.

Equipment required

ID: 4605079_1404_08Pos. Title Part no.1 Boiler I See Viessmann pricelist2 Boiler water temperature sensor KTS Standard delivery pos. 63 Flow temperature sensor VTS Standard delivery pos. 54 Outside temperature sensor ATS Standard delivery pos. 55 Vitotronic 300-K, type MW1B Standard delivery pos. 16 Vitotronic 100, type GC1B Standard delivery pos. 17 Neutralising system See Viessmann pricelist8 Boiler II See Viessmann pricelist9 Vitotronic 100, type GC1B Standard delivery pos. 8qP Therm-Control temperature sensor Standard delivery pos. 8qQ Motorised butterfly valve (for boiler II) See Vitoset pricelistqW Boiler water temperature sensor KTS Standard delivery pos. 9

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

126 VIESMANN System examples

4

5822

471

GB

Page 124: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

ID: 4605079_1404_08Pos. Title Part no.qE DHW cylinder See Viessmann pricelistqR Cylinder temperature sensor STS Standard delivery pos. 5qT Circulation pump for cylinder heating UPSB See Viessmann pricelistqZ DHW circulation pump ZP See Vitoset pricelistqU Heating circuit I On siteqO Heating circuit pump M2 (heating circuit I) On site Extension kit for one heating circuit with mixer comprising 7441 998qI Flow temperature sensor M2 (heating circuit I)

and

wP Mixer motor M2 (heating circuit I) or qI – Contact temperature sensor

or7426 463

– Immersion temperature sensorSensor well R½ x 100Sensor well R½ x 150

7438 7027816 0357817 326

and wP Mixer motor for flanged mixer M2 (heating circuit I) See Viessmann pricelistwQ Heating circuit II On sitewE Heating circuit pump M3 (heating circuit II) On site Extension kit for one heating circuit with mixer comprising 7441 998wW Flow temperature sensor M3 (heating circuit II)

and

wR Mixer motor M3 (heating circuit II) or wW – Contact temperature sensor

or7426 463

– Immersion temperature sensorSensor well R½ x 100Sensor well R½ x 150

7438 7027816 0357817 326

and wR Mixer motor for flanged mixer M3 (heating circuit II) See Viessmann pricelistwT Heating circuit III (low temperature heating circuit) On sitewU Heating circuit pump M1 (heating circuit III) On site Extension kit for one heating circuit with mixer comprising 7441 998wZ Flow temperature sensor M1 (heating circuit III)

and

wI Mixer motor M1 (heating circuit III) or wZ – Contact temperature sensor

or7426 463

– Immersion temperature sensorSensor well R½ x 100Sensor well R½ x 150

7438 7027816 0357817 326

and wI Mixer motor for flanged mixer M1 (heating circuit III) See Viessmann pricelistwO Vitotronic 200-H, type HK1B

andSee Viessmann pricelist

uP LON communication module for pos. 29and

7172 173

LON cable 7143 495eP Outside temperature sensor ATS (ATS value can be accepted by the Vitotronic 300-K) Standard delivery pos. 29 Boiler accessories eW Plug-in adaptor for external safety equipment 7164 404eE Maximum pressure limiter SDB 7438 025eR Minimum pressure switch or limiter SDB 7438 030eT Water level limiter (low water indicator) WB See Viessmann pricelisteU Flue gas temperature sensor AGS 7452 531zR - External changeover of stepped/modulating burners zI - External blocking/boiler zO - Start boiler as the last one in the sequence

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

System examples VIESMANN 127

5822

471

GB

4

Page 125: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

ID: 4605079_1404_08Pos. Title Part no. Accessories eQ Vitotrol 200A

orZ008 341

Vitotrol 300A Z008 342 As an alternative to hardwired remote control units, the following wireless accessory may be used q-P Wireless base station Z011 413q-Q Vitotrol 200 RF Z011 219q-W Vitotrol 300 RF with table-top dock Z011 410q-E Vitotrol 300 RF with wall mounting bracket Z011 412q-R Wireless outside temperature sensor 7455 213q-T Wireless repeater 7456 538rP ON/OFF switch On siterR Central fault message system S On siterU Radio clock receiver 7450 563tE KM BUS distributor, for several KM BUS subscribers

– EA1 extension– Vitotrol 200A, 300A– Wireless base station

7415 028

zP EA1 extension 7452 091zQ 1 switching output (floating changeover contact)

- Switching a feed pump to a substation- Signalling reduced mode for one heating circuit

zW 1 analogue input (0 – 10 V)- Set flow temperature default

zE 3 digital inputs- External changeover of operating state for heating circuits 1 to 3, may be switched individually- External blocking with central fault message facility- Fault messages- Brief operation of the DHW circulation pump

External hook-ups On sitezT - External blocking/mixer close zZ - External demand zU - External operating program changeover/mixer open uP LON communication module (part of standard delivery for Vitotronic 300-K) 7172 173uQ Vitocom 300, type LAN3 Z011 555

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

128 VIESMANN System examples

4

5822

471

GB

Page 126: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Electrical installation scheme

230 V/50 Hz

40LP A2

LON

12

1234

Low

vol

tage

STS

VTS

ATS

ZP

230

V/5

0 H

z

A1

A1

UPSB

LP A3

S

LON

230 V/50 Hz

MW1B

//

40

28

21

52

20

29

50

40

156

17A

17B

5A

5B

3/2

145

145

143

146

1

12 M3

1M2

M3

M2

LP A1

2

Low

vol

tage

M3

M2

M3

M2

M3

M2

M3

M2

230

V/5

0 H

z

MW1B

15640

20

52

52

20

2

2

L

N40

40A

157

0-10V

145

12

56DE3

34DE2

DE1

EA1

34

KM BUS145

145

145

KM BUS distributor

/

/

1

32

1

32

1

32

1234

1234

L

N

L

N

L

N

L

N

N

L

N

L

NM1~

M1~

N

L

5

5 40

44

15

16

66

6567

14

3

47

4

706 9 29

L

N

N

M1~

M1~

NM1~

L

N

M1~

N

L

5

18

22

19

23

20

24

4

L

N

S

12

12

1

32

1

32

1

32

53

31 100

63

62

63

63

61

71

60

ID: 4605079_1404_08

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

System examples VIESMANN 129

5822

471

GB

4

Page 127: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

230

V/5

0 H

z

151

90

41

150

156

156

40

50

29

20 A1

52 A1

21

28

LP A3

M1~

4

4

4

SDB

SDB

WB145

7145

90

41

7

S

LP A2

Low

vol

tage T1

KTS

AGS

1

146

143

15 12

145

145

LON

3/2 12

5B

5A

17B

17A 1234

4

44

/

/

/

only for

only for

230 V/50 Hz

GC1B

145

LON / / / /

L

N

L

N

L

N

L

N

N

L

N

L

N

L

N

1

32

P

P

1

32

1

32

1

32

1234

1234

N

L

6 9

6 9

40

32

33

34

35

11 9

64

6968

37

10 9

2 12

32

5 670

9 29 71

ID: 4605079_1404_08

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

130 VIESMANN System examples

4

5822

471

GB

Page 128: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

230

V/5

0 H

z

M1

M1

LP A3

M1M1~

S

LP A2

Low

vol

tage

M1

LON

12

1234

LON

230 V/50 Hz

M1M1~

ATS

HK1B

///

17A

17B

5A

5B

3/2

145

145

143

146

1

28

21

52

20

29

50

40

156

/

L

N

L

N

L

N

N

L

N

L

N

1

32

1

32

1

32

1234

1234

N

L

29

40

44

27

28

26

30

5 670

9 71

L

N

31 100

ID: 4605079_1404_08

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

System examples VIESMANN 131

5822

471

GB

4

Page 129: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

4.3 Multi boiler system: Vitocrossal and low temperature boiler with several heating cir-cuits and one low temperature heating circuit – low temperature boiler with shunt pump

ID: 4605080_1404_08

ApplicationsMulti boiler system, comprising condensing and low temperature boil-ers for use in heating and DHW heating systems as well as in air han-dling systems. The condensing boiler for covering the base load andthe low temperature boiler as a peak load boiler are hydraulically con-nected in parallel according to the Tichelmann principle.

Main components■ Vitocrossal 200/300

andVitoplex 200/300

■ Vitotronic 100 (type GC1B) for each boiler in the multi boiler systemand one Vitotronic 300-K (type MW1B) per multi boiler systemorVitotronic 100 (type GC1B) for each boiler in a multi boiler systemwith a Vitocontrol control panel and weather-compensated controlunit

■ Shunt pumps and motorised butterfly valves■ Vitotronic 200-H.

Function descriptionThe Vitocrossal 1 (lead boiler) and downstream Vitoplex 2 areoperated via the weather-compensated control system with modulat-ing boiler water temperature and load-dependent sequence control –two-stage or modulating burners are controlled. The control systemthat is connected via the LON BUS regulates a boiler water tempera-ture that is higher than the highest heating circuit flow temperature byan adjustable differential. The heating system can be operated accord-ing to a separate heating curve.The Vitocrossal 200 boilers are equipped with a single return con-nector. Heating circuits with higher and lower return temperatures areconnected to the return connector via a return collector.

Vitocrossal 300 boilers 1 are equipped with two return connectors.Heating circuits qO and wE with a higher return temperature are con-nected to return connector "KR 2", and heating circuit wU with lowertemperatures is connected to return connector "KR 1". Note: Connectat least 15 % of the rated heating output to return connector "KR 1".Because of the separate return connections for heating circuits withhigh and low return temperatures, the Vitocrossal 300 1 can achievehigh levels of efficiency if most of the consumers are operated with lowtemperatures.For the Vitotronic control system, Vitotronic 100 boiler control units6 and 9 are interconnected with weather-compensatedVitotronic 300-K cascade control unit 5 and Vitotronic 200-H heatingcircuit control unit eQ via a LON BUS. This regulates various controlassemblies without additional installation effort. The return temperature raising facility for the Vitoplex low temperatureboilers is available as an accessory or must be provided on site. Thereturn temperature is raised through a shunt pump and by closing but-terfly valve qE. Temperature sensor T1 qP influences the butterflyvalve. Temperature sensor T2 qQ switches shunt pump qW.By adjusting Vitotronic 300-K 5, the condensing boiler can always beselected as the lead boiler. This ensures high efficiency at all times.

DHW heatingThe DHW is heated up when the actual temperature falls below theset DHW temperature selected at cylinder temperature sensor qZ,subject to cylinder heating being enabled by the time switch. The boilerwater temperature is raised to the set cylinder temperature +20 K, andcirculation pump for cylinder heating qU starts if the boiler water tem-perature is 7 K above the cylinder temperature. If the heating circuits are regulated via the Vitotronic 5, heating circuitpumps M2 wQ and M3 wT are switched off and mixers M2 wW and M3wZ are closed, subject to priority being enabled.

Heating modeDepending on the control unit used, the flow temperature of heatingcircuits qO,wE and wU is operated in modulating mode subject to theoutside temperature. The boiler water temperature is regulated 8 Khigher than the set flow temperature.

NoteThis scheme is a general system example. Refer to the relevanttechnical guides when designing for specific applications.

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

132 VIESMANN System examples

4

5822

471

GB

Page 130: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Required codes

ID: 4605080_1404_08Service address Vitotronic 300-K, type MW1B / pos. 5Group Code Function"General" "00:8" Two heating circuits with mixer M2 (heating circuit 2) and M3 (heating

circuit 3) with DHW heating"Cascade" "35:2" Number of connected heat generators"Cascade" "39:1" Permanent lead boiler is boiler 1"Cascade" "3A:2" Permanent last boiler is boiler 2Service address Vitotronic 100, type GC1B / pos. 6"Boiler" "01:2" Multi boiler system with cascade control via LON"Boiler" "02:1"

or "02:2"

Two-stage burner (delivered condition)

Modulating burner"Boiler" "0d:0" Without Therm-ControlService address Vitotronic 100, type GC1B / pos. 9"General" "77:2" LON subscriber number"Boiler" "01:2" Multi boiler system with cascade control via LON"Boiler" "02:1"

or "02:2"

Two-stage burner (delivered condition)

Modulating burner"Boiler" "07:2" Consecutive boiler number in multi boiler systemsService address Vitotronic 200-H, type HK1B / pos. eQ"General" "81:3" Control unit receives the time"General" "97:1" Control unit receives outside temperature

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

System examples VIESMANN 133

5822

471

GB

4

Page 131: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Hydraulic installation scheme ID: 4605080_1404_08

KW

WW

--5/5A--

15

16

18

31

19

20

21

22

23

24

25

26

27

28

29

30

--5/2M2--

--5/20M2--

--5/52M2--

--5/2M3--

--5/20M3--

--5/52M3--

--31/3/2M1--

--31/20M1--

--31/52M1--

--23

0V--

--52

M1-

---

20M

1--

--3/

2M1-

-

17--5/21--

--5/28--

210

14

4

--6/

3/2-

-

--5/

1--

--9/17A----9/

3/2-

-

--LO

N--

5

--23

0V--

--21

----

28--

--52

M2-

---

20M

2--

--52

M3-

---

20M

3--

--2M

3--

--2M

2--

--5A

----

3/2-

---

1--

--K

M-B

us--

--LO

N--

9

--23

0V--

--52

A1-

---

29--

--LO

N--

--LO

N--

--17

A--

--3/

2--

8

3--5/3/2--

7

11--9/17B--

--9/

29--

12

--9/52A1--

13

--17

B--

GC1B6

--23

0V--

--LO

N--

--LO

N--

--3/

2--

1

GC1B

HK1BMW1B

Note: This scheme is a general example without shut-off valves or safety equipment. This does not replace the need for on-site engineering.

Equipment required

ID: 4605080_1404_08Pos. Title Part no.1 Boiler I See Viessmann pricelist2 Boiler water temperature sensor KTS Standard delivery pos. 63 Flow temperature sensor VTS Standard delivery pos. 54 Outside temperature sensor ATS Standard delivery pos. 55 Vitotronic 300-K, type MW1B Standard delivery pos. 16 Vitotronic 100, type GC1B Standard delivery pos. 17 Neutralising system See Viessmann pricelist

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

134 VIESMANN System examples

4

5822

471

GB

Page 132: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

ID: 4605080_1404_08Pos. Title Part no.8 Boiler II See Viessmann pricelist9 Vitotronic 100, type GC1B Standard delivery pos. 8qP Return temperature sensor, butterfly valve – Contact temperature sensor

or7426 463

– Immersion temperature sensor (incl. sensor well) 7438 702qQ Return temperature sensor BMP – Contact temperature sensor

or7426 463

– Immersion temperature sensor (incl. sensor well) 7438 702qW Shunt pump BP On siteqE Motorised butterfly valve (for boiler II) See Vitoset pricelistqR Boiler water temperature sensor KTS Standard delivery pos. 9qT DHW cylinder See Viessmann pricelistqZ Cylinder temperature sensor STS Standard delivery pos. 5qU Circulation pump for cylinder heating UPSB See Viessmann pricelistqI DHW circulation pump ZP See Vitoset pricelistqO Heating circuit I On sitewQ Heating circuit pump M2 (heating circuit I) On site Extension kit for one heating circuit with mixer comprising 7441 998wP Flow temperature sensor M2 (heating circuit I)

and

wW Mixer motor M2 (heating circuit I) or wP – Contact temperature sensor

or7426 463

– Immersion temperature sensorSensor well R½ x 100Sensor well R½ x 150

7438 7027816 0357817 326

and wW Mixer motor for flanged mixer M2 (heating circuit I) See Viessmann pricelistwE Heating circuit II On sitewT Heating circuit pump M3 (heating circuit II) On site Extension kit for one heating circuit with mixer comprising 7441 998wR Flow temperature sensor M3 (heating circuit II)

and

wZ Mixer motor M3 (heating circuit II) or wR – Contact temperature sensor

or7426 463

– Immersion temperature sensorSensor well R½ x 100Sensor well R½ x 150

7438 7027816 0357817 326

and wZ Mixer motor for flanged mixer M3 (heating circuit II) See Viessmann pricelistwU Heating circuit III (low temperature heating circuit) On sitewO Heating circuit pump M1 (heating circuit III) On site Extension kit for one heating circuit with mixer comprising 7441 998wI Flow temperature sensor M1 (heating circuit III)

and

eP Mixer motor M1 (heating circuit III) or wI – Contact temperature sensor

or7426 463

– Immersion temperature sensorSensor well R½ x 100Sensor well R½ x 150

7438 7027816 0357817 326

and eP Mixer motor for flanged mixer M1 (heating circuit III) See Viessmann pricelisteQ Vitotronic 200-H, type HK1B

andSee Viessmann pricelist

LON communication module for pos. 31and

7172 173

LON cable 7143 495eW Outside temperature sensor ATS (ATS value can be accepted by the Vitotronic 300-K) Standard delivery pos. 31

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

System examples VIESMANN 135

5822

471

GB

4

Page 133: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

ID: 4605080_1404_08Pos. Title Part no. Boiler accessories eR Plug-in adaptor for external safety equipment 7164 404eT Maximum pressure limiter SDB 7438 025eZ Minimum pressure switch or limiter SDB 7438 030eU Water level limiter (low water indicator) WB See Viessmann pricelisteO Flue gas temperature sensor AGS 7452 531zR - External changeover of stepped/modulating burners zI - External blocking/boiler zO - External demand / start boiler as the last one in the boiler sequence Accessories eE Vitotrol 200A

orZ008 341

Vitotrol 300A Z008 342 As an alternative to hardwired remote control units, the following wireless accessory may be used q-P Wireless base station Z011 413q-Q Vitotrol 200 RF Z011 219q-W Vitotrol 300 RF with table-top dock Z011 410q-E Vitotrol 300 RF with wall mounting bracket Z011 412q-R Wireless outside temperature sensor 7455 213q-T Wireless repeater 7456 538rP ON/OFF switch On siterZ Central fault message system S On siterO Radio clock receiver 7450 563tE KM BUS distributor, for several KM BUS subscribers

– EA1 extension– Vitotrol 200A, 300A– Wireless base station

7415 028

zP EA1 extension 7452 091zQ 1 switching output (floating changeover contact)

- Switching a feed pump to a substation- Signalling reduced mode for one heating circuit

zW 1 analogue input (0 – 10 V)- Set flow temperature default

zE 3 digital inputs- External changeover of operating state for heating circuits 1 to 3, may be switched individually - External blocking with central fault message facility- Fault messages- Brief operation of the DHW circulation pump

External hook-ups On sitezT - External blocking/mixer close zZ - External demand zU - External operating program changeover/mixer open uQ Vitocom 300, type LAN3 Z011 555

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

136 VIESMANN System examples

4

5822

471

GB

Page 134: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Electrical installation scheme

LP A2

1

146

143

145

145

LON

3/2 12

5B

5A

17B

17A 1234

Low

vol

tage

12 M3 24

1M2 202

2 M3

M2

LP A1

2

STS 16

VTS 3

4ATS

49

Low

vol

tage

ZP

230

V/5

0 H

z

5

18

156

40

50

29

20 A1

52 A1

21

28

UPSB 17

LP A3

S 46

5

40

5

M3 25

M2 22

M3 26

M2 2120

52

52

20 M3

M2

M3

M2

230

V/5

0 H

z

40 5156

6LON

230 V/50 Hz

40

65

66

67

70

KM BUS

53

145

145

33

60

40

40A

157

0-10V 62

63

145

34

DE3

145

63DE2

63DE1

EA1

KM BUS distributor

61

230 V/50 Hz

40

100

MW1B MW1B

1

32

1

32

1

32

1234

1234

L

N

L

N

L

N

L

N

N

L

N

L

NM1~

M1~

L

N

N

M1~

M1~

NM1~

L

N

M1~

N

L

N

L

1

32

L

N

S

12

12

12

1

32

N

L

12

1

32

ID: 4605080_1404_08

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

System examples VIESMANN 137

5822

471

GB

4

Page 135: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

230

V /

50 H

z

6

151

90

41

150

156

156

40

50

29

20 A1

52 A1

21

28

LP A3

M1~

344

4

4

SDB

SDB

WB145

7145

90

41

7

S

LP A2

Low

vol

tage T1

KTS 14

AGS 45

1

146

143

15 12

145

145

LON

3/2 12

5 B

5 A

17 B

17 A 1234

9

6 9

4

35

36

37

13

46

10

2

39

34145

LON 5 6 9 31

/

/

/ / /

/

/

only for 9

only for 9

T2 11 only for 9

BP 12 only for 9

230 V/ 50 Hz

40

69

64

68

GC1B

L

N

L

N

L

N

L

N

N

L

N

L

N

L

N

1

32

P

P

1

32

1

32

1

32

1234

1234

M1~

N

L

ID: 4605080_1404_08

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

138 VIESMANN System examples

4

5822

471

GB

Page 136: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

230

V/5

0 H

z

M1

M1

LP A3

M1M1~

S

LP A2

Low

vol

tage

M1

LON

12

1234

LON

230 V/50 Hz

M1M1~

ATS

HK1B

///

17A

17B

5A

5B

3/2

145

145

143

146

1

28

21

52

20

29

50

40

156

/

L

N

L

N

L

N

N

L

N

L

N

1

32

1

32

1

32

1234

1234

N

L

31

40

46

29

30

28

32

5 670

9 71

L

N

33 100

ID: 4605080_1404_08

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

System examples VIESMANN 139

5822

471

GB

4

Page 137: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

4.4 Multi boiler system: Vitocrossal and low temperature boiler with 3-way mixing valveand several heating circuits plus one low temperature heating circuit

ID: 4605081_1404_07

ApplicationsMulti boiler system, comprising condensing and low temperature boil-ers for use in heating and DHW heating systems as well as in air han-dling systems. The condensing boiler for covering the base load andthe low temperature boiler as a peak load boiler are hydraulically con-nected in series. The boiler circuit pump of the lag boiler delivers theentire system flow rate.

Main components■ Vitocrossal 200/300

andVitoplex 200/300 or Vitorond 200

■ Vitotronic 100 (type GC1B) once for each boiler in the multi boilersystem and one Vitotronic 300-K (type MW1B) per multi boiler sys-temorVitotronic 100 (type GC1B) for each boiler in a multi boiler systemwith a Vitocontrol control panel and weather-compensated controlunit

■ 3-way mixing valve for raising the return temperature■ Vitotronic 200-H.Possible applications: For heating circuits with temperature differen-tials > 20 K.

Function descriptionThe Vitocrossal 1 (lead boiler) and downstream Vitoplex 8 areoperated via the weather-compensated control system with modulat-ing boiler water temperature and load-dependent sequence control –two-stage or modulating burners are controlled. The control systemthat is connected via the LON BUS regulates a boiler water tempera-ture that is higher than the highest heating circuit flow temperature byan adjustable differential. The heating system can be operated accord-ing to a separate heating curve.The Vitocrossal 200 boilers are equipped with a single return con-nector. Heating circuits with higher and lower return temperatures areconnected to the return connector via a return collector.

The Vitocrossal 300 boilers are equipped with two return connectors.Heating circuits qI and wW with a higher return temperature are con-nected to return connector "KR 2", and heating circuit wZ with lowertemperatures is connected to return connector "KR 1". Note: Connectat least 15 % of the rated heating output to return connector "KR 1".Because of the separate return connections for heating circuits withhigh and low return temperatures, the Vitocrossal 300 1 can achievehigh levels of efficiency if most of the consumers are operated with lowtemperatures.For the Vitotronic control system, Vitotronic 100 boiler control units6 and 9 are interconnected with weather-compensatedVitotronic 300-K cascade control unit 5 and Vitotronic 200-H heatingcircuit control unit eP via a LON BUS. This regulates various controlassemblies without additional installation effort.Upon demand, the preheated heating water from the Vitocrossal 1is pumped from boiler circuit pump qW via the 3-way mixing valve intothe Vitoplex 8. There, it will be reheated and reintroduced into theflow line. The boiler circuit pump delivers the water volume of the entiresystem, corresponding to the temperature differential for the designpoint. The boiler circuit pump head equals the pressure drop on thewater side from the flow connection via the Vitoplex to the re-entry atthe system flow.Temperature sensor T1 qP captures the return temperature. The boilercontrol unit regulates 3-way mixing valve qQ to ensure that the actualtemperature never falls below the minimum return temperature.By adjusting the Vitotronic 300-K 5, condensing boiler 1 can alwaysbe selected as the lead boiler. This ensures high efficiency at alltimes.

DHW heatingThe DHW is heated up when the actual temperature falls below theset DHW temperature selected at cylinder temperature sensor qT,subject to cylinder heating being enabled by the time switch. The boilerwater temperature is raised to the set cylinder temperature +20 K, andcirculation pump for cylinder heating qZ starts if the boiler water tem-perature is 7 K above the cylinder temperature. If the heating circuits are regulated via the Vitotronic 5, heating circuitpumps M2 wP and M3 wR are switched off and mixers M2 wQ and M3wT are closed, subject to priority being enabled.

Heating modeDepending on the control unit used, the flow temperature of heatingcircuits qI,wW and wZ is operated in modulating mode subject to theoutside temperature. The boiler water temperature is regulated 8 Khigher than the set flow temperature.

NoteThis scheme is a general system example. Refer to the relevanttechnical guides when designing for specific applications.

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

140 VIESMANN System examples

4

5822

471

GB

Page 138: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Required codes

ID: 4605081_1404_07Service address Vitotronic 300-K, type MW1B / pos. 5Group Code Function"General" "00:8" Two heating circuits with mixer M2 (heating circuit 2) and M3 (heating

circuit 3) with DHW heating"Cascade" "35:2" Number of connected heat generators"Cascade" "39:1" Permanent lead boiler is boiler 1"Cascade" "3A:2" Permanent last boiler is boiler 2"Cascade" "36:3" Standalone control, boiler connected in series with flow temperature

sensorService address Vitotronic 100, type GC1B / pos. 6"Boiler" "01:2" Multi boiler system with cascade control via LON"Boiler" "02:1"

or "02:2"

Two-stage burner (delivered condition)

Modulating burner"Boiler" "0d:0" Without Therm-ControlService address Vitotronic 100, type GC1B / pos. 9"General" "77:2" LON subscriber number"General" "4d:2" Boiler circuit pump"General" "4E:1" Motor for 3-way mixer for return temperature control"Boiler" "01:2" Multi boiler system with cascade control via LON"Boiler" "02:1"

or "02:2"

Two-stage burner (delivered condition)

Modulating burner"Boiler" "07:2" Consecutive boiler number in multi boiler systems"Boiler" "0C:1" Constant return temperature controlService address Vitotronic 200-H, type HK1B / pos. eP"General" "81:3" Control unit receives the time"General" "97:1" Control unit receives outside temperature

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

System examples VIESMANN 141

5822

471

GB

4

Page 139: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Hydraulic installation scheme ID: 4605081_1404_07

KW

WW

--5/5A--

14

15

17

30

18

19

20

21

22

23

24

25

26

27

28

29

--5/2M2--

--5/20M2--

--5/52M2--

--5/2M3--

--5/20M3--

--5/52M3--

-30/3/2M1-

-30/20M1-

-30/52M1-

--23

0V-

--52

M1-

---

20M

1-- --3/2M1--

16--5/21--

--5/28--

2

11

1013

12

4 --6/

3/2-

-

--5/

1--

--9/29--

--9/52A1--

--9/17A--

--9/

3/2-

-

--LON--

5 6

--23

0V--

--21

----

28--

--52

M2-

---

20M

2--

--52

M3-

---

20M

3--

--2M

3--

--2M

2--

--5A

----

3/2-

---

1--

--K

M-B

us--

--LO

N--

--23

0V--

--LO

N--

--LO

N--

--3/

2--

9

--23

0V--

--52

A1-

---

29--

--LO

N--

--LO

N--

--17

A--

--3/

2--

1 8

3-5/3/2-

7

Note: This scheme is a general example without shut-off valves or safety equipment. This does not replace the need for on-site engineering.

Equipment required

ID: 4605081_1404_07Pos. Title Part no.1 Boiler I See Viessmann pricelist2 Boiler water temperature sensor KTS Standard delivery pos. 63 Flow temperature sensor VTS Standard delivery pos. 54 Outside temperature sensor ATS Standard delivery pos. 55 Vitotronic 300-K, type MW1B Standard delivery pos. 16 Vitotronic 100, type GC1B Standard delivery pos. 17 Neutralising system See Viessmann pricelist

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

142 VIESMANN System examples

4

5822

471

GB

Page 140: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

ID: 4605081_1404_07Pos. Title Part no.8 Boiler II See Viessmann pricelist9 Vitotronic 100, type GC1B Standard delivery pos. 8qP Temperature sensor T1 – Contact temperature sensor

or7426 463

– Immersion temperature sensorSensor well R½ x 100Sensor well R½ x 150

7438 7027816 0357817 326

qQ 3-way mixing valve See Vitoset pricelistqW Boiler circuit pump On siteqE Boiler water temperature sensor KTS Standard delivery pos. 9qR DHW cylinder See Viessmann pricelistqT Cylinder temperature sensor STS Standard delivery pos. 5qZ Circulation pump for cylinder heating UPSB See Viessmann pricelistqU DHW circulation pump ZP See Vitoset pricelistqI Heating circuit I On sitewP Heating circuit pump M2 (heating circuit I) On site Extension kit for one heating circuit with mixer comprising 7441 998qO Flow temperature sensor M2 (heating circuit I)

and

wQ Mixer motor M2 (heating circuit I) or qO – Contact temperature sensor

or7426 463

– Immersion temperature sensorSensor well R½ x 100Sensor well R½ x 150

7438 7027816 0357817 326

and wQ Mixer motor for flanged mixer M2 (heating circuit I) See Viessmann pricelistwW Heating circuit II On sitewR Heating circuit pump M3 (heating circuit II) On site Extension kit for one heating circuit with mixer comprising 7441 998wE Flow temperature sensor M3 (heating circuit II)

and

wT Mixer motor M3 (heating circuit II) or wE – Contact temperature sensor

or7426 463

– Immersion temperature sensorSensor well R½ x 100Sensor well R½ x 150

7438 7027816 0357817 326

and wT Mixer motor for flanged mixer M3 (heating circuit II) See Viessmann pricelistwZ Heating circuit III (low temperature heating circuit) On sitewI Heating circuit pump M1 (heating circuit III) On site Extension kit for one heating circuit with mixer comprising 7441 998wU Flow temperature sensor M1 (heating circuit III)

and

wO Mixer motor M1 (heating circuit III) or wU – Contact temperature sensor

or7426 463

– Immersion temperature sensorSensor well R½ x 100Sensor well R½ x 150

7438 7027816 0357817 326

and wO Mixer motor for flanged mixer M1 (heating circuit III) See Viessmann pricelisteP Vitotronic 200-H, type HK1B

andSee Viessmann pricelist

uP LON communication module for pos. 30and

7172 173

LON cable 7143 495eQ Outside temperature sensor ATS (ATS value can be accepted by the Vitotronic 300-K) Standard delivery pos. 30

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

System examples VIESMANN 143

5822

471

GB

4

Page 141: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

ID: 4605081_1404_07Pos. Title Part no. Boiler accessories eE Plug-in adaptor for external safety equipment 7164 404eR Maximum pressure limiter SDB 7438 025eT Minimum pressure switch or limiter SDB 7438 030eZ Water level limiter (low water indicator) WB See Viessmann pricelisteI Flue gas temperature sensor AGS 7452 531zR - External changeover of stepped/modulating burners zI - External blocking/boiler zO - Start boiler as the last one in the sequence Accessories eW Vitotrol 200A

orZ008 341

Vitotrol 300A Z008 342 As an alternative to hardwired remote control units, the following wireless accessory may be used q-P Wireless base station Z011 413q-Q Vitotrol 200 RF Z011 219q-W Vitotrol 300 RF with table-top dock Z011 410q-E Vitotrol 300 RF with wall mounting bracket Z011 412q-R Wireless outside temperature sensor 7455 213q-T Wireless repeater 7456 538rP ON/OFF switch On siterT Central fault message system S On siterO Radio clock receiver 7450 563tE KM BUS distributor, for several KM BUS subscribers

– EA1 extension– Vitotrol 200A, 300A– Wireless base station

7415 028

zP EA1 extension 7452 091zQ 1 switching output (floating changeover contact)

- Switching a feed pump to a substation- Signalling reduced mode for one heating circuit

zW 1 analogue input (0 – 10 V)- Set flow temperature default

zE 3 digital inputs- External changeover of operating state for heating circuits 1 to 3, may be switched individually- External blocking with central fault message facility- Fault messages- Brief operation of the DHW circulation pump

External hook-ups On sitezT - External blocking/mixer close zZ - External demand zU - External operating program changeover/mixer open uP LON communication module (part of standard delivery for Vitotronic 300-K) 7172 173uQ Vitocom 300, type LAN3 Z011 555

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

144 VIESMANN System examples

4

5822

471

GB

Page 142: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Electrical installation scheme

230 V/50 Hz

40LP A2

LON

12

1234

Low

vol

tage

STS

VTS

ATS

ZP

230

V/5

0 H

z

A1

A1

UPSB

LP A3

S

LON

230 V/50 Hz

MW1B

///

40

28

21

52

20

29

50

40

156

17A

17B

5A

5B

3/2

145

145

143

146

1

12 M3

1M2

M3

M2

LP A1

2

Low

vol

tage

M3

M2

M3

M2

M3

M2

M3

M2

230

V/5

0 H

z

MW1B

15640

20

52

52

20

2

2

L

N40

40A

157

0-10V

145

12

56DE3

34DE2

DE1

EA1

34

KM BUS145

145

145

KM BUS distributor

/

1

32

1

32

1

32

1234

1234

L

N

L

N

L

N

L

N

N

L

N

L

NM1~

M1~

N

L

5

5 40

45

16

17

66

6567

15

3

49

4

706 9 30 71

L

N

N

M1~

M1~

NM1~

L

N

M1~

N

L

5

19

23

20

24

21

25

5

L

N

S

12

12

1

32

1

32

1

32

53

32 100

63

62

63

63

61

60

ID: 4605081_1404_07

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

System examples VIESMANN 145

5822

471

GB

4

Page 143: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

KKP only for

230

V/5

0 H

z

151

90

41

150

156

156

40

50

29

20 A1

52 A1

21

28

LP A3

M1~

4

4

4

SDB

SDB

WB145

7145

90

41

7

S

LP A2

Low

vol

tage T1

KTS

AGS

1

146

143

15 12

145

145

LON

3/2 12

5B

5A

17B

17A 1234

4

/

/

/

only for

only for

230 V/50 Hz

GC1B

145

LON / / / /

M1~

L

N

L

N

L

N

L

N

N

L

N

L

N

L

N

1

32

P

P

1

32

1

32

1

32

1234

1234

N

L

6 9

6 9

40

33

34

35

36

11 9

64

6968

38

10 9

2 13

33

5 670

9 30 71

45

12 9

ID: 4605081_1404_07

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

146 VIESMANN System examples

4

5822

471

GB

Page 144: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

230

V/5

0 H

z

M1

M1

LP A3

M1M1~

S

LP A2

Low

vol

tage

M1

LON

12

1234

LON

230 V/50 Hz

M1M1~

ATS

HK1B

///

17A

17B

5A

5B

3/2

145

145

143

146

1

28

21

52

20

29

50

40

156

/

L

N

L

N

L

N

N

L

N

L

N

1

32

1

32

1

32

1234

1234

N

L

30

40

45

28

29

27

31

5 670

9 71

L

N

32 100

ID: 4605081_1404_07

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

System examples VIESMANN 147

5822

471

GB

4

Page 145: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

4.5 Multi boiler system: Vitocrossal and low temperature boiler with Therm-Control withseveral heating circuits and one low temperature heating circuit

ID: 4605530_1404_02

ApplicationsMulti boiler system, comprising condensing and low temperature boil-ers for use in heating and DHW heating systems as well as in air han-dling systems. The condensing boiler for covering the base load andthe low temperature boiler as a peak load boiler are hydraulically con-nected in parallel according to the Tichelmann principle.

Main components■ Vitocrossal 200, type CM2 (400 - 620 kW) with Vitotronic 100, type

GC4BandVitoplex 200 / 300 or Vitoradial 300-T or Vitorond 200 with Vitotronic100, type GC1B

■ Vitotronic 300-K (type MW1B), for controlling the multi boiler sys-temorVitotronic 100 (type GC1B or GC4B) for each boiler in a multi boilersystem with a Vitocontrol control panel and weather-compensatedcontrol unit

■ Therm-Control for operating the Vitoplex and Vitorond boilers with-out return temperature raising facility

■ Vitotronic 200-H

Function descriptionVitocrossal (lead boiler) 1 and downstream low temperature boilers8 are operated via a weather-compensated control system with mod-ulating boiler water temperature and load-dependent sequence control– two-stage or modulating burners are controlled. The control systemthat is connected via the LON BUS regulates a boiler water tempera-ture that is higher than the highest heating circuit flow temperature byan adjustable differential. The heating system can be operated accord-ing to a separate heating curve.

For the Vitotronic control system, Vitotronic 100 boiler control units6 and 9 are interconnected with weather-compensatedVitotronic 300-K cascade control unit 5 and Vitotronic 200-H heatingcircuit control unit wO via a LON BUS. This regulates various controlassemblies without additional installation effort.The Therm-Control of the low temperature boiler regulates motorisedbutterfly valve qQ and must reduce the boiler water flow rate of theVitoplex in the start-up phase (e.g. during commissioning or afternight or weekend shutdown).Equip boilers without Therm-Control with a return temperature raisingfacility according to prevailing operating conditions.By adjusting Vitotronic 300-K 5, the condensing boiler can always beselected as the lead boiler. This ensures high efficiency at all times.When using the Vitoradial 300-T, the circulation pump for the down-stream flue gas heat exchanger is connected as per the Vitotrans 300.See system example "Boiler with Vitotrans 300 flue gas/water heatexchanger".

DHW heatingThe DHW is heated up when the actual temperature falls below theset DHW temperature selected at cylinder temperature sensor qR,subject to cylinder heating being enabled by the time switch. The boilerwater temperature is raised to the set cylinder temperature +20 K, andcirculation pump for cylinder heating qT starts if the boiler water tem-perature is 7 K above the cylinder temperature. If the heating circuits are regulated via the Vitotronic 5, heating circuitpumps M2 qO and M3 wE are switched off and mixers M2 wP and M3wR are closed, subject to priority being enabled.

Heating modeDepending on the control unit used, the flow temperature of heatingcircuits qU,wQ and wT is operated in modulating mode subject to theoutside temperature. The boiler water temperature is regulated 8 Khigher than the set flow temperature.

NoteThis scheme is a general system example. Refer to the relevanttechnical guides when designing for specific applications.

Required codes

ID: 4605530_1404_02Service address Vitotronic 300-K, type MW1B / pos. 5Group Code Function"General" "00:8" Two heating circuits with mixer M2 (heating circuit 2) and M3 (heating

circuit 3) with DHW heating"Cascade" "35:2" Number of connected heat generators"Cascade" "39:1" Permanent lead boiler is boiler 1"Cascade" "3A:2" Permanent last boiler is boiler 2Service address Vitotronic 100, type GC4B / pos. 6"Boiler" "01:2" Multi boiler system with cascade control via LONService address Vitotronic 100, type GC1B / pos. 9"General" "77:2" LON subscriber number"Boiler" "01:2" Multi boiler system with cascade control via LON"Boiler" "07:2" Consecutive boiler number in multi boiler systemsService address Vitotronic 200-H, type HK1B / pos. wO"General" "81:3" Control unit receives the time"General" "97:1" Control unit receives outside temperature

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

148 VIESMANN System examples

4

5822

471

GB

Page 146: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Hydraulic installation scheme ID: 4605530_1404_02

KW

WW

--5/5A--

--5/2M2--

--5/20M2--

--5/52M2--

--5/2M3--

--5/20M3--

--5/52M3--

--29/3/2M1--

--29/20M1--

--29/52M1--

--5/21--

--5/28--

--5/

1--

--9/

17A

--

--9/

3/2-

-

--5/3/2--

--9/52A1--

--LO

N--

--LO

N--

--230

V--

--LO

N--

--LO

N--

--17A

----3

/2--

--230

V--

--52A

1--

GC1B9

1 8qE

qR

7

qZ

qT

3

2

qW qP

qQ

--2M

2--

--2M

3--

--5A-

---3

/2--

--1--

--KM

BU

S--

--LO

N--

--230

V--

--21-

---2

8--

--52M

2--

--20M

2--

--52M

3--

--20M

3--

MW1B54 --L

ON

----3

/2M

1--

--230

V--

--52M

1--

--20M

1--

HK1B

qI

qO

wP

qU

wW

wE

wR

wQ

wZ

wU

wI

wT

wO

GC4B6

Note: This scheme is a general example without shut-off valves or safety equipment. This does not replace the need for on-site engineering.

Equipment required

ID: 4605530_1404_02Pos. Title Part no.1 Boiler I See Viessmann pricelist2 Boiler water temperature sensor KTS (connection at burner control unit) Standard delivery pos. 13 Flow temperature sensor VTS Standard delivery pos. 54 Outside temperature sensor ATS Standard delivery pos. 55 Vitotronic 300-K, type MW1B Standard delivery pos. 16 Vitotronic 100, type GC4B Standard delivery pos. 17 Neutralising system See Viessmann pricelist8 Boiler II See Viessmann pricelist9 Vitotronic 100, type GC1B Standard delivery pos. 8qP Therm-Control temperature sensor Standard delivery pos. 8qQ Motorised butterfly valve (for boiler II) See Vitoset pricelistqW Boiler water temperature sensor KTS Standard delivery pos. 9

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

System examples VIESMANN 149

5822

471

GB

4

Page 147: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

ID: 4605530_1404_02Pos. Title Part no.qE DHW cylinder See Viessmann pricelistqR Cylinder temperature sensor STS Standard delivery pos. 5qT Circulation pump for cylinder heating UPSB See Viessmann pricelistqZ DHW circulation pump ZP See Vitoset pricelistqU Heating circuit I On siteqO Heating circuit pump M2 (heating circuit I) On site Extension kit for one heating circuit with mixer comprising 7441 998qI Flow temperature sensor M2 (heating circuit I)

and

wP Mixer motor M2 (heating circuit I) or qI – Contact temperature sensor

or7426 463

– Immersion temperature sensorSensor well R½ x 100Sensor well R½ x 150

7438 7027816 0357817 326

and wP Mixer motor for flanged mixer M2 (heating circuit I) See Viessmann pricelistwQ Heating circuit II On sitewE Heating circuit pump M3 (heating circuit II) On site Extension kit for one heating circuit with mixer comprising 7441 998wW Flow temperature sensor M3 (heating circuit II)

and

wR Mixer motor M3 (heating circuit II) or wW – Contact temperature sensor

or7426 463

– Immersion temperature sensorSensor well R½ x 100Sensor well R½ x 150

7438 7027816 0357817 326

and wR Mixer motor for flanged mixer M3 (heating circuit II) See Viessmann pricelistwT Heating circuit III (low temperature heating circuit) On sitewU Heating circuit pump M1 (heating circuit III) On site Extension kit for one heating circuit with mixer comprising 7441 998wZ Flow temperature sensor M1 (heating circuit III)

and

wI Mixer motor M1 (heating circuit III) or wZ – Contact temperature sensor

or7426 463

– Immersion temperature sensorSensor well R½ x 100Sensor well R½ x 150

7438 7027816 0357817 326

and wI Mixer motor for flanged mixer M1 (heating circuit III) See Viessmann pricelistwO Vitotronic 200-H, type HK1B

andSee Viessmann pricelist

uP LON communication module for pos. 29and

7172 173

LON cable 7143 495eP Outside temperature sensor ATS (ATS value can be accepted by the Vitotronic 300-K) Standard delivery pos. 29 Boiler accessories eW Plug-in adaptor for external safety equipment 7164 404eE Maximum pressure limiter SDB 7438 025eR Minimum pressure switch or limiter SDB 7438 030eT Water level limiter (low water indicator) WB See Viessmann pricelisteU Flue gas temperature sensor AGS (only for low temperature boiler) 7452 531zR - External changeover of stepped/modulating burners zI - External blocking/boiler zO - Start boiler as the last one in the sequence

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

150 VIESMANN System examples

4

5822

471

GB

Page 148: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

ID: 4605530_1404_02Pos. Title Part no. Accessories eQ Vitotrol 200A

orZ008 341

Vitotrol 300A Z008 342 As an alternative to hardwired remote control units, the following wireless accessory may be used q-P Wireless base station Z011 413q-Q Vitotrol 200 RF Z011 219q-W Vitotrol 300 RF with table-top dock Z011 410q-E Vitotrol 300 RF with wall mounting bracket Z011 412q-R Wireless outside temperature sensor 7455 213q-T Wireless repeater 7456 538rP ON/OFF switch On siterR Central fault message system S On siterU Radio clock receiver 7450 563tE KM BUS distributor, for several KM BUS subscribers

– EA1 extension– Vitotrol 200A, 300A– Wireless base station

7415 028

zP EA1 extension 7452 091zQ 1 switching output (floating changeover contact)

- Switching a feed pump to a substation- Signalling reduced mode for one heating circuit

zW 1 analogue input (0 – 10 V)- Set flow temperature default

zE 3 digital inputs- External changeover of operating state for heating circuits 1 to 3, may be switched individually- External blocking with central fault message facility- Fault messages- Brief operation of the DHW circulation pump

External hook-ups On sitezT - External blocking/mixer close zZ - External demand zU - External operating program changeover/mixer open uP LON communication module (part of standard delivery for Vitotronic 300-K) 7172 173uQ Vitocom 300, type LAN3 Z011 555

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

System examples VIESMANN 151

5822

471

GB

4

Page 149: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Electrical installation scheme

230 V/50 Hz

40LP A2

LON

12

1234

Low

vol

tage

STS

VTS

ATS

ZP

230

V/5

0 H

z

A1

A1

UPSB

LP A3

S

LON

230 V/50 Hz

MW1B

///

40

28

21

52

20

29

50

40

156

17A

17B

5A

5B

3/2

145

145

143

146

1

12 M3

1M2

M3

M2

LP A1

2

Low

vol

tage

M3

M2

M3

M2

M3

M2

M3

M2

230

V/5

0 H

z

MW1B

15640

20

52

52

20

2

2

L

N40

40A

157

0-10V

145

12

56DE3

34DE2

DE1

EA1

34

KM BUS145

145

145

KM BUS distributor

/

1

32

1

32

1

32

1234

1234

L

N

L

N

L

N

L

N

N

L

N

L

NM1~

M1~

N

L

5

5 40

44

15

16

66

6567

14

3

47

4

706 9 29 71

L

N

N

M1~

M1~

NM1~

L

N

M1~

N

L

5

18

22

19

23

20

24

4

L

N

S

12

12

1

32

1

32

1

32

53

31 100

63

62

63

63

61

60

ID: 4605530_1404_02

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

152 VIESMANN System examples

4

5822

471

GB

Page 150: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

230

V/5

0 H

z

151

90

41

150

156

156

40

50

29

20 A1

52 A1

21

28

LP A3

4

4

4

SDB

SDB

WB145

7145

41

7

S

LP A2

Low

vol

tage

1

146

143

15 12

145

145

LON

3/2 12

5B

5A

17B

17A 1234

44

230 V/50 Hz

GC4B

145

LON / / /

L

N

L

N

L

N

L

N

N

L

N

L

N

L

N

1

32

P

P

1

32

1

32

1

32

1234

1234

N

L

6

6

40

32

33

34

35

6968

32

5 970

29 71

ID: 4605530_1404_02

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

System examples VIESMANN 153

5822

471

GB

4

Page 151: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

230

V/5

0 H

z

151

90

41

150

156

156

40

50

29

20 A1

52 A1

21

28

LP A3

M1~

4

4

4

SDB

SDB

WB145

7145

90

41

7

S

LP A2

Low

vol

tage T1

KTS

AGS

1

146

143

15 12

145

145

LON

3/2 12

5B

5A

17B

17A 1234

4

44

230 V/50 Hz

GC1B

145

LON / / /

L

N

L

N

L

N

L

N

N

L

N

L

N

L

N

1

32

P

P

1

32

1

32

1

32

1234

1234

N

L

9

9

40

32

33

34

35

11

64

6968

37

10

12

32

5 670

29 71

ID: 4605530_1404_02

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

154 VIESMANN System examples

4

5822

471

GB

Page 152: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

230

V/5

0 H

z

M1

M1

LP A3

M1M1~

S

LP A2

Low

vol

tage

M1

LON

12

1234

LON

230 V/50 Hz

M1M1~

ATS

HK1B

///

17A

17B

5A

5B

3/2

145

145

143

146

1

28

21

52

20

29

50

40

156

/

L

N

L

N

L

N

N

L

N

L

N

1

32

1

32

1

32

1234

1234

N

L

29

40

44

27

28

26

30

5 670

9 71

L

N

31 100

ID: 4605530_1404_02

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

System examples VIESMANN 155

5822

471

GB

4

Page 153: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

4.6 Multi boiler system: Vitocrossal and low temperature boiler with several heating cir-cuits and one low temperature heating circuit – low temperature boiler with shunt pump

ID: 4605531_1404_03

ApplicationsMulti boiler system, comprising condensing and low temperature boil-ers for use in heating and DHW heating systems as well as in air han-dling systems. The condensing boiler for covering the base load andthe low temperature boiler as a peak load boiler are hydraulically con-nected in parallel according to the Tichelmann principle.

Main components■ Vitocrossal 200, type CM2 (400 - 620 kW) with Vitotronic 100, type

GC4BandVitoplex 200/300 with Vitotronic 100, type GC1B

■ Vitotronic 300-K (type MW1B) for controlling the multi boiler systemorVitotronic 100 (type GC1B or GC4B) for each boiler in a multi boilersystem with a Vitocontrol control panel and weather-compensatedcontrol unit

■ Shunt pumps and motorised butterfly valves■ Vitotronic 200-H.

Function descriptionThe Vitocrossal 1 (lead boiler) and downstream Vitoplex 2 areoperated via the weather-compensated control system with modulat-ing boiler water temperature and load-dependent sequence control –two-stage or modulating burners are controlled. The control systemthat is connected via the LON BUS regulates a boiler water tempera-ture that is higher than the highest heating circuit flow temperature byan adjustable differential. The heating system can be operated accord-ing to a separate heating curve.

For the Vitotronic control system, Vitotronic 100 boiler control units6 and 9 are interconnected with weather-compensatedVitotronic 300-K cascade control unit 5 and Vitotronic 200-H heatingcircuit control unit eQ via a LON BUS. This regulates various controlassemblies without additional installation effort. The return temperature raising facility for the Vitoplex low temperatureboilers is available as an accessory or must be provided on site. Thereturn temperature is raised through a shunt pump and by closing but-terfly valve qE. Temperature sensor T1 qP influences the butterflyvalve. Temperature sensor T2 qQ switches shunt pump qW.By adjusting Vitotronic 300-K 5, the condensing boiler can always beselected as the lead boiler. This ensures high efficiency at all times.

DHW heatingThe DHW is heated up when the actual temperature falls below theset DHW temperature selected at cylinder temperature sensor qZ,subject to cylinder heating being enabled by the time switch. The boilerwater temperature is raised to the set cylinder temperature +20 K, andcirculation pump for cylinder heating qU starts if the boiler water tem-perature is 7 K above the cylinder temperature. If the heating circuits are regulated via the Vitotronic 5, heating circuitpumps M2 wQ and M3 wT are switched off and mixers M2 wW and M3wZ are closed, subject to priority being enabled.

Heating modeDepending on the control unit used, the flow temperature of heatingcircuits qO,wE and wU is operated in modulating mode subject to theoutside temperature. The boiler water temperature is regulated 8 Khigher than the set flow temperature.

NoteThis scheme is a general system example. Refer to the relevanttechnical guides when designing for specific applications.

Required codes

ID: 4605531_1404_03Service address Vitotronic 300-K, type MW1B / pos. 5Group Code Function"General" "00:8" Two heating circuits with mixer M2 (heating circuit 2) and M3 (heating

circuit 3) with DHW heating"Cascade" "35:2" Number of connected heat generators"Cascade" "39:1" Permanent lead boiler is boiler 1"Cascade" "3A:2" Permanent last boiler is boiler 2Service address Vitotronic 100, type GC4B / pos. 6"Boiler" "01:2" Multi boiler system with cascade control via LONService address Vitotronic 100, type GC1B / pos. 9"General" "77:2" LON subscriber number"Boiler" "01:2" Multi boiler system with cascade control via LON"Boiler" "02:1"

or "02:2"

Two-stage burner (delivered condition)

Modulating burner"Boiler" "07:2" Consecutive boiler number in multi boiler systemsService address Vitotronic 200-H, type HK1B / pos. eQ"General" "81:3" Control unit receives the time"General" "97:1" Control unit receives outside temperature

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

156 VIESMANN System examples

4

5822

471

GB

Page 154: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Hydraulic installation scheme ID: 4605531_1404_03

KW

WW

--5/5A--

--5/2M2--

--5/20M2--

--5/52M2--

--5/2M3--

--5/20M3--

--5/52M3--

--31/3/2M1--

--31/20M1--

--31/52M1--

--5/21--

--5/28--

--9/17A----9/

3/2-

-

--5/3/2--

--9/17B--

--9/

29----9/52A1--

--5/

1--

--2M

2--

--2M

3--

--5A-

---3

/2--

--1--

--KM

BU

S--

--LO

N--

--230

V--

--21-

---2

8--

--52M

2--

--20M

2--

--52M

3--

--20M

3--

MW1B54 --L

ON

----3

/2M

1--

--230

V--

--52M

1--

--20M

1--

HK1BeQ

--LO

N--

--LO

N--

--230

V--

--LO

N--

--LO

N--

--17A

----1

7B--

--3/2

--

--230

V--

--52A

1--

--29-

-

GC1B9

1 8

7

GC4B6

wP

wQ

wW

qO

wR

wT

wZ

wE

wI

wO

eP

wU

qZ

qI

qU

3

qT

2

qE

qQ

qW

qP

qR

Note: This scheme is a general example without shut-off valves or safety equipment. This does not replace the need for on-site engineering.

Equipment required

ID: 4605531_1404_03Pos. Title Part no.1 Boiler I See Viessmann pricelist2 Boiler water temperature sensor KTS (connection at burner control unit) Standard delivery pos. 13 Flow temperature sensor VTS Standard delivery pos. 54 Outside temperature sensor ATS Standard delivery pos. 55 Vitotronic 300-K, type MW1B Standard delivery pos. 16 Vitotronic 100, type GC4B Standard delivery pos. 17 Neutralising system See Viessmann pricelist

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

System examples VIESMANN 157

5822

471

GB

4

Page 155: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

ID: 4605531_1404_03Pos. Title Part no.8 Boiler II See Viessmann pricelist9 Vitotronic 100, type GC1B Standard delivery pos. 8qP Return temperature sensor, butterfly valve – Contact temperature sensor

or7426 463

– Immersion temperature sensor (incl. sensor well) 7438 702qQ Return temperature sensor BMP – Contact temperature sensor

or7426 463

– Immersion temperature sensor (incl. sensor well) 7438 702qW Shunt pump BP On siteqE Motorised butterfly valve (for boiler II) See Vitoset pricelistqR Boiler water temperature sensor KTS Standard delivery pos. 9qT DHW cylinder See Viessmann pricelistqZ Cylinder temperature sensor STS Standard delivery pos. 5qU Circulation pump for cylinder heating UPSB See Viessmann pricelistqI DHW circulation pump ZP See Vitoset pricelistqO Heating circuit I On sitewQ Heating circuit pump M2 (heating circuit I) On site Extension kit for one heating circuit with mixer comprising 7441 998wP Flow temperature sensor M2 (heating circuit I)

and

wW Mixer motor M2 (heating circuit I) or wP – Contact temperature sensor

or7426 463

– Immersion temperature sensorSensor well R½ x 100Sensor well R½ x 150

7438 7027816 0357817 326

and wW Mixer motor for flanged mixer M2 (heating circuit I) See Viessmann pricelistwE Heating circuit II On sitewT Heating circuit pump M3 (heating circuit II) On site Extension kit for one heating circuit with mixer comprising 7441 998wR Flow temperature sensor M3 (heating circuit II)

and

wZ Mixer motor M3 (heating circuit II) or wR – Contact temperature sensor

or7426 463

– Immersion temperature sensorSensor well R½ x 100Sensor well R½ x 150

7438 7027816 0357817 326

and wZ Mixer motor for flanged mixer M3 (heating circuit II) See Viessmann pricelistwU Heating circuit III (low temperature heating circuit) On sitewO Heating circuit pump M1 (heating circuit III) On site Extension kit for one heating circuit with mixer comprising 7441 998wI Flow temperature sensor M1 (heating circuit III)

and

eP Mixer motor M1 (heating circuit III) or wI – Contact temperature sensor

or7426 463

– Immersion temperature sensorSensor well R½ x 100Sensor well R½ x 150

7438 7027816 0357817 326

and eP Mixer motor for flanged mixer M1 (heating circuit III) See Viessmann pricelisteQ Vitotronic 200-H, type HK1B

andSee Viessmann pricelist

uP LON communication module for pos. 31and

7172 173

LON cable 7143 495eW Outside temperature sensor ATS (ATS value can be accepted by the Vitotronic 300-K) Standard delivery pos. 31

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

158 VIESMANN System examples

4

5822

471

GB

Page 156: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

ID: 4605531_1404_03Pos. Title Part no. Boiler accessories eR Plug-in adaptor for external safety equipment 7164 404eT Maximum pressure limiter SDB 7438 025eZ Minimum pressure switch or limiter SDB 7438 030eU Water level limiter (low water indicator) WB See Viessmann pricelisteO Flue gas temperature sensor AGS (only for low temperature boiler) 7452 531zR - External changeover of stepped/modulating burners zI - External blocking/boiler zO - External demand / start boiler as the last one in the boiler sequence Accessories eE Vitotrol 200A

orZ008 341

Vitotrol 300A Z008 342 As an alternative to hardwired remote control units, the following wireless accessory may be used q-P Wireless base station Z011 413q-Q Vitotrol 200 RF Z011 219q-W Vitotrol 300 RF with table-top dock Z011 410q-E Vitotrol 300 RF with wall mounting bracket Z011 412q-R Wireless outside temperature sensor 7455 213q-T Wireless repeater 7456 538rP ON/OFF switch On siterZ Central fault message system S On siterO Radio clock receiver 7450 563tE KM BUS distributor, for several KM BUS subscribers

– EA1 extension– Vitotrol 200A, 300A– Wireless base station

7415 028

zP EA1 extension 7452 091zQ 1 switching output (floating changeover contact)

- Switching a feed pump to a substation- Signalling reduced mode for one heating circuit

zW 1 analogue input (0 – 10 V)- Set flow temperature default

zE 3 digital inputs- External changeover of operating state for heating circuits 1 to 3, may be switched individually - External blocking with central fault message facility- Fault messages- Brief operation of the DHW circulation pump

External hook-ups On sitezT - External blocking/mixer close zZ - External demand zU - External operating program changeover/mixer open uP LON communication module (part of standard delivery for Vitotronic 300-K) 7172 173uQ Vitocom 300, type LAN3 Z011 555

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

System examples VIESMANN 159

5822

471

GB

4

Page 157: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Electrical installation scheme

LP A2

LON

12

1234

Low

vol

tage

STS

VTS

ATS

ZP

230

V/5

0 H

z

A1

A1

UPSB

LP A3

S

LON

230 V/50 Hz

MW1B

///

40

28

21

52

20

29

50

40

156

17A

17B

5A

5B

3/2

145

145

143

146

1

12 M3

1M2

M3

M2

LP A1

2

Low

vol

tage

M3

M2

M3

M2

M3

M2

M3

M2

230

V/5

0 H

z

MW1B

15640

20

52

52

20

2

2

L

N40

40A

157

0-10V

145

12

56DE3

34DE2

DE1

EA1

34

KM BUS145

145

145

KM BUS distributor

/

230 V/50 Hz

1

32

1

32

1

32

1234

1234

L

N

L

N

L

N

L

N

N

L

N

L

NM1~

M1~

N

L

5

5 40

46

17

18

66

6567

16

3

49

4

706 9 31 71

L

N

N

M1~

M1~

NM1~

L

N

M1~

N

L

5

20

24

21

25

22

26

5

L

N

S

12

12

1

32

1

32

1

32

53

33

63

62

63

63

61

60

100

40

ID: 4605531_1404_03

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

160 VIESMANN System examples

4

5822

471

GB

Page 158: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

230

V/5

0 H

z

6

151

90

41

150

156

156

40

50

29

20 A1

52 A1

21

28

LP A3

344

4

4

SDB

SDB

WB145

7145

41

7

S

LP A2

Low

vol

tage

1

146

143

15 12

145

145

LON

3/2 12

5B

5A

17B

17A 1234

6

35

36

37

46

230 V/50 Hz

40

6968

GC4B

34145

LON 5 9 31 71/ / /70

L

N

L

N

L

N

L

N

N

L

N

L

N

L

N

1

32

P

P

1

32

1

32

1

32

1234

1234

N

L

ID: 4605531_1404_03

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

System examples VIESMANN 161

5822

471

GB

4

Page 159: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

230

V/5

0 H

z

151

90

41

150

156

156

40

50

29

20 A1

52 A1

21

28

LP A3

M1~

4

4

4

SDB

SDB

WB145

7145

90

41

7

S

LP A2

Low

vol

tage T1

KTS

AGS

1

146

143

15 12

145

145

LON

3/2 12

5B

5A

17B

17A 1234

4

T2

BP

230 V/50 Hz

GC1B

145

LON /

70

/ /

L

N

L

N

L

N

L

N

N

L

N

L

N

L

N

1

32

P

P

1

32

1

32

1

32

1234

1234

M1~

N

L

9

9

40

34

35

36

37

46

12

13

64

6968

39

11

10

14

34

5 6 31 71

ID: 4605531_1404_03

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

162 VIESMANN System examples

4

5822

471

GB

Page 160: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

230

V/5

0 H

z

M1

M1

LP A3

M1M1~

S

LP A2

Low

vol

tage

M1

LON

12

1234

LON

230 V/50 Hz

M1M1~

ATS

HK1B

///

17A

17B

5A

5B

3/2

145

145

143

146

1

28

21

52

20

29

50

40

156

/

L

N

L

N

L

N

N

L

N

L

N

1

32

1

32

1

32

1234

1234

N

L

31

40

46

29

30

28

32

5 670

9 71

L

N

33 100

ID: 4605531_1404_03

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

System examples VIESMANN 163

5822

471

GB

4

Page 161: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

4.7 Multi boiler system: Vitocrossal and low temperature boiler with 3-way mixing valveand several heating circuits plus one low temperature heating circuit

ID: 4605532_1404_02

ApplicationsMulti boiler system, comprising condensing and low temperature boil-ers for use in heating and DHW heating systems as well as in air han-dling systems. The condensing boiler for covering the base load andthe low temperature boiler as a peak load boiler are hydraulically con-nected in series. The boiler circuit pump of the lag boiler delivers theentire system flow rate.

Main components■ Vitocrossal 200, type CM2 (400 - 620 kW) with Vitotronic 100, type

GC4BandVitoplex 200/300 or Vitorond 200 with Vitotronic 100, type GC1B

■ Vitotronic 300-K (type MW1B) for controlling the multi boiler sys-temorVitotronic 100 (type GC1B or GC4B) for each boiler in a multi boilersystem with a Vitocontrol control panel and weather-compensatedcontrol unit

■ 3-way mixing valve for raising the return temperature■ Vitotronic 200-H.Possible applications: For heating circuits with temperature differen-tials > 20 K.

Function descriptionThe Vitocrossal 1 (lead boiler) and downstream Vitoplex 8 areoperated via the weather-compensated control system with modulat-ing boiler water temperature and load-dependent sequence control –two-stage or modulating burners are controlled. The control systemthat is connected via the LON BUS regulates a boiler water tempera-ture that is higher than the highest heating circuit flow temperature byan adjustable differential. The heating system can be operated accord-ing to a separate heating curve.

For the Vitotronic control system, Vitotronic 100 boiler control units6 and 9 are interconnected with weather-compensatedVitotronic 300-K cascade control unit 5 and Vitotronic 200-H heatingcircuit control unit eP via a LON BUS. This regulates various controlassemblies without additional installation effort.Upon demand, the preheated heating water from the Vitocrossal 1is pumped from boiler circuit pump qW via the 3-way mixing valve intothe Vitoplex 8. There, it will be reheated and reintroduced into theflow line. The boiler circuit pump delivers the water volume of the entiresystem, corresponding to the temperature differential for the designpoint. The boiler circuit pump head equals the pressure drop on thewater side from the flow connection via the Vitoplex to the re-entry atthe system flow.Temperature sensor T1 qP captures the return temperature. The boilercontrol unit regulates 3-way mixing valve qQ to ensure that the actualtemperature never falls below the minimum return temperature.By adjusting the Vitotronic 300-K 5, condensing boiler 1 can alwaysbe selected as the lead boiler. This ensures high efficiency at alltimes.

System-specific codeAt the Vitotronic 300-K, change "3B" to "3" – boilers connected in serieswith flow temperature sensor. At the Vitotronic 100 of the Vitoplex,change "4D" to "2" – plug-in connection sL for boiler circuit pump;change "0C" to "1" – boilers with constant return temperature raising.

DHW heatingThe DHW is heated up when the actual temperature falls below theset DHW temperature selected at cylinder temperature sensor qT,subject to cylinder heating being enabled by the time switch. The boilerwater temperature is raised to the set cylinder temperature +20 K, andcirculation pump for cylinder heating qZ starts if the boiler water tem-perature is 7 K above the cylinder temperature. If the heating circuits are regulated via the Vitotronic 5, heating circuitpumps M2 wP and M3 wR are switched off and mixers M2 wQ and M3wT are closed, subject to priority being enabled.

Heating modeDepending on the control unit used, the flow temperature of heatingcircuits qI,wW and wZ is operated in modulating mode subject to theoutside temperature. The boiler water temperature is regulated 8 Khigher than the set flow temperature.

NoteThis scheme is a general system example. Refer to the relevanttechnical guides when designing for specific applications.

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

164 VIESMANN System examples

4

5822

471

GB

Page 162: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Required codes

ID: 4605532_1404_02Service address Vitotronic 300-K, type MW1B / pos. 5Group Code Function"General" "00:8" Two heating circuits with mixer M2 (heating circuit 2) and M3 (heating

circuit 3) with DHW heating"Cascade" "35:2" Number of connected heat generators"Cascade" "39:1" Permanent lead boiler is boiler 1"Cascade" "3A:2" Permanent last boiler is boiler 2Service address Vitotronic 100, type GC4B / pos. 6"Boiler" "01:2" Multi boiler system with cascade control via LONService address Vitotronic 100, type GC1B / pos. 9"General" "77:2" LON subscriber number"General" "4d:2" Boiler circuit pump"General" "4E:1" Motor for 3-way mixer for return temperature control"Boiler" "01:2" Multi boiler system with cascade control via LON"Boiler" "02:1"

or "02:2"

Two-stage burner (delivered condition)

Modulating burner"Boiler" "07:2" Consecutive boiler number in multi boiler systems"Boiler" "0C:1" Constant return temperature controlService address Vitotronic 200-H, type HK1B / pos. eP"General" "81:3" Control unit receives the time"General" "97:1" Control unit receives outside temperature

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

System examples VIESMANN 165

5822

471

GB

4

Page 163: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Hydraulic installation scheme ID: 4605532_1404_02

KW

WW

--5/5A--

--5/2M2--

--5/20M2--

--5/52M2--

--5/2M3--

--5/20M3--

--5/52M3--

--30/3/2M1--

--30/20M1--

--30/52M1--

--5/21--

--5/28----9/29--

--9/52A1--

--9/17A--

--9/

3/2-

-

-5/3/2-

--LO

N--

--LO

N--

--230

V--

--LO

N--

--LO

N--

--17A

----3

/2--

--230

V--

--52A

1--

--29-

-

GC1B9

1 8

GC4B6

--5/

1--

--2M

2--

--2M

3--

--5A-

---3

/2--

--1--

--KM

BU

S--

--LO

N--

--230

V--

--21-

---2

8--

--52M

2--

--20M

2--

--52M

3--

--20M

3--

MW1B54 --L

ON

----3

/2M

1--

--230

V--

--52M

1--

--20M

1--

HK1BeP

qO

wP

wQ

qI

wE

wR

wT

wW

wU

wI

wO

wZ

qW

qQ

qP

qE

7

qT

qU

qZ

3

qR

2

Note: This scheme is a general example without shut-off valves or safety equipment. This does not replace the need for on-site engineering.

Equipment required

ID: 4605532_1404_02Pos. Title Part no.1 Boiler I See Viessmann pricelist2 Boiler water temperature sensor KTS (connection at burner control unit) Standard delivery pos. 13 Flow temperature sensor VTS Standard delivery pos. 54 Outside temperature sensor ATS Standard delivery pos. 55 Vitotronic 300-K, type MW1B Standard delivery pos. 16 Vitotronic 100, type GC4B Standard delivery pos. 17 Neutralising system See Viessmann pricelist

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

166 VIESMANN System examples

4

5822

471

GB

Page 164: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

ID: 4605532_1404_02Pos. Title Part no.8 Boiler II See Viessmann pricelist9 Vitotronic 100, type GC1B Standard delivery pos. 8qP Temperature sensor T1 – Contact temperature sensor

or7426 463

– Immersion temperature sensorSensor well R½ x 100Sensor well R½ x 150

7438 7027816 0357817 326

qQ 3-way mixing valve See Vitoset pricelistqW Boiler circuit pump On siteqE Boiler water temperature sensor KTS Standard delivery pos. 9qR DHW cylinder See Viessmann pricelistqT Cylinder temperature sensor STS Standard delivery pos. 5qZ Circulation pump for cylinder heating UPSB See Viessmann pricelistqU DHW circulation pump ZP See Vitoset pricelistqI Heating circuit I On sitewP Heating circuit pump M2 (heating circuit I) On site Extension kit for one heating circuit with mixer comprising 7441 998qO Flow temperature sensor M2 (heating circuit I)

and

wQ Mixer motor M2 (heating circuit I) or qO – Contact temperature sensor

or7426 463

– Immersion temperature sensorSensor well R½ x 100Sensor well R½ x 150

7438 7027816 0357817 326

and wQ Mixer motor for flanged mixer M2 (heating circuit I) See Viessmann pricelistwW Heating circuit II On sitewR Heating circuit pump M3 (heating circuit II) On site Extension kit for one heating circuit with mixer comprising 7441 998wE Flow temperature sensor M3 (heating circuit II)

and

wT Mixer motor M3 (heating circuit II) or wE – Contact temperature sensor

or7426 463

– Immersion temperature sensorSensor well R½ x 100Sensor well R½ x 150

7438 7027816 0357817 326

and wT Mixer motor for flanged mixer M3 (heating circuit II) See Viessmann pricelistwZ Heating circuit III (low temperature heating circuit) On sitewI Heating circuit pump M1 (heating circuit III) On site Extension kit for one heating circuit with mixer comprising 7441 998wU Flow temperature sensor M1 (heating circuit III)

and

wO Mixer motor M1 (heating circuit III) or wU – Contact temperature sensor

or7426 463

– Immersion temperature sensorSensor well R½ x 100Sensor well R½ x 150

7438 7027816 0357817 326

and wO Mixer motor for flanged mixer M1 (heating circuit III) See Viessmann pricelisteP Vitotronic 200-H, type HK1B

andSee Viessmann pricelist

uP LON communication module for pos. 30and

7172 173

LON cable 7143 495eQ Outside temperature sensor ATS (ATS value can be accepted by the Vitotronic 300-K) Standard delivery pos. 30

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

System examples VIESMANN 167

5822

471

GB

4

Page 165: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

ID: 4605532_1404_02Pos. Title Part no. Boiler accessories eE Plug-in adaptor for external safety equipment 7164 404eR Maximum pressure limiter SDB 7438 025eT Minimum pressure switch or limiter SDB 7438 030eZ Water level limiter (low water indicator) WB See Viessmann pricelisteI Flue gas temperature sensor AGS (only for low temperature boiler) 7452 531zR - External changeover of stepped/modulating burners zI - External blocking/boiler zO - Start boiler as the last one in the sequence Accessories eW Vitotrol 200A

orZ008 341

Vitotrol 300A Z008 342 As an alternative to hardwired remote control units, the following wireless accessory may be used q-P Wireless base station Z011 413q-Q Vitotrol 200 RF Z011 219q-W Vitotrol 300 RF with table-top dock Z011 410q-E Vitotrol 300 RF with wall mounting bracket Z011 412q-R Wireless outside temperature sensor 7455 213q-T Wireless repeater 7456 538rP ON/OFF switch On siterT Central fault message system S On siterO Radio clock receiver 7450 563tE KM BUS distributor, for several KM BUS subscribers

– EA1 extension– Vitotrol 200A, 300A– Wireless base station

7415 028

zP EA1 extension 7452 091zQ 1 switching output (floating changeover contact)

- Switching a feed pump to a substation- Signalling reduced mode for one heating circuit

zW 1 analogue input (0 – 10 V)- Set flow temperature default

zE 3 digital inputs- External changeover of operating state for heating circuits 1 to 3, may be switched individually- External blocking with central fault message facility- Fault messages- Brief operation of the DHW circulation pump

External hook-ups On sitezT - External blocking/mixer close zZ - External demand zU - External operating program changeover/mixer open uP LON communication module (part of standard delivery for Vitotronic 300-K) 7172 173uQ Vitocom 300, type LAN3 Z011 555

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

168 VIESMANN System examples

4

5822

471

GB

Page 166: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Electrical installation scheme

230 V/50 Hz

LP A2

LON

12

1234

Low

vol

tage

STS

VTS

ATS

ZP

230

V/5

0 H

z

A1

A1

UPSB

LP A3

S

LON

230 V/50 Hz

MW1B

///

40

28

21

52

20

29

50

40

156

17A

17B

5A

5B

3/2

145

145

143

146

1

12 M3

1M2

M3

M2

LP A1

2

Low

vol

tage

M3

M2

M3

M2

M3

M2

M3

M2

230

V/5

0 H

z

MW1B

15640

20

52

52

20

2

2

L

N40

40A

157

0-10V

145

12

56DE3

34DE2

DE1

EA1

34

KM BUS145

145

145

KM BUS distributor

/

1

32

1

32

1

32

1234

1234

L

N

L

N

L

N

L

N

N

L

N

L

NM1~

M1~

N

L

5

5 40

45

16

17

66

6567

15

3

49

4

706 9 30 71

L

N

N

M1~

M1~

NM1~

L

N

M1~

N

L

5

19

23

20

24

21

25

5

L

N

S

12

12

1

32

1

32

1

32

53

32 100

63

62

63

63

61

6040

ID: 4605532_1404_02

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

System examples VIESMANN 169

5822

471

GB

4

Page 167: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

230

V/5

0 H

z

151

90

41

150

156

156

40

50

29

20 A1

52 A1

21

28

LP A3

4

4

4

SDB

SDB

WB145

7145

41

7

S

LP A2

Low

vol

tage

1

146

143

15 12

145

145

LON

3/2 12

5B

5A

17B

17A 1234

230 V/50 Hz

GC4B

145

LON /

70

/ /

L

N

L

N

L

N

L

N

N

L

N

L

N

L

N

1

32

P

P

1

32

1

32

1

32

1234

1234

N

L

6

6

40

33

34

35

36

45

6968

33

5 9 30 71

ID: 4605532_1404_02

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

170 VIESMANN System examples

4

5822

471

GB

Page 168: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

230

V/5

0 H

z

151

90

41

150

156

156

40

50

29

20 A1

52 A1

21

28

LP A3

M1~

4

4

4

SDB

SDB

WB145

7145

90

41

7

S

LP A2

Low

vol

tage T1

KTS

AGS

1

146

143

15 12

145

145

LON

3/2 12

5B

5A

17B

17A 1234

4

BP

230 V/50 Hz

GC1B

145

LON /

70

/ /

L

N

L

N

L

N

L

N

N

L

N

L

N

L

N

1

32

P

P

1

32

1

32

1

32

1234

1234

M1~

N

L

9

9

40

33

34

35

36

45

12

11

64

6968

38

10

13

33

5 6 30 71

ID: 4605532_1404_02

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

System examples VIESMANN 171

5822

471

GB

4

Page 169: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

230

V/5

0 H

z

M1

M1

LP A3

M1M1~

S

LP A2

Low

vol

tage

M1

LON

12

1234

LON

230 V/50 Hz

M1M1~

ATS

HK1B

///

17A

17B

5A

5B

3/2

145

145

143

146

1

28

21

52

20

29

50

40

156

/

L

N

L

N

L

N

N

L

N

L

N

1

32

1

32

1

32

1234

1234

N

L

30

40

45

28

29

27

31

5 670

9 71

L

N

32 100

ID: 4605532_1404_02

Boiler, ≤ 2000 kW, in multi boiler systems, conventional and condensing boilers (cont.)

172 VIESMANN System examples

4

5822

471

GB

Page 170: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

5.1 Overview of system examplesBoiler with Vitotrans 300 flue gas/water heat exchanger Boiler with Vitotrans 300 flue gas/water heat exchanger in low tem-

perature heating circuits with boiler circuit pumpSee page 174

ID: 4605082_1404_07

See page 180

ID: 4605084_1404_07Boiler with Vitotrans 300 flue gas/water heat exchanger in low temper-ature heating circuits with shunt pump

See page 177

ID: 4605083_1404_07

Flue gas/water heat exchangers for the utilisation of condensing technology

System examples VIESMANN 173

5822

471

GB

5

Page 171: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

5.2 Single boiler system: Boilers with Vitotrans 300 flue gas/water heat exchanger

ID: 4605082_1404_07

ApplicationsHeating system with favourably low return temperatures for the uti-lisation of condensing technology.Utilisation of condensing technology for gas and oil combustion up to6000 kW rated boiler heating output is feasible.

NoteSee overall system scheme 4605067, chapter 2.

Main components■ Vitoplex, Vitorond or Vitomax■ Shunt pump for raising the return temperature■ Vitotrans 300■ Circulation pump for Vitotrans 300 (only required when the pressure

drop is excessive for the heating circuit pumps).or

■ Vitoradial 300-T, comprising boiler 1 with downstream flue gas/water heat exchanger 3 and pipe assembly with circulation pump4.

For control equipment, see the technical guide for the relevant boiler.

Function descriptionConnect Vitotrans 300 3 hydraulically in series with the boiler 1.The system throughput can be channelled wholly or partially via theVitotrans 300.

NoteThis scheme is a general system example. Refer to the relevanttechnical guides when designing for specific applications.

Required codes

ID: 4605082_1404_07Service address Vitotronic 100, 200, 300Group Code Function"General" "4C:3" Flue gas/water heat exchanger circulation pump at plug sÖ A1.Service address, alternative when using AM1 extension"Boiler" "33:3" Circulation pump, neutralising system or flue gas/water heat exchang-

er

Flue gas/water heat exchangers for the utilisation of condensing technology (cont.)

174 VIESMANN System examples

5

5822

471

GB

Page 172: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Hydraulic installation scheme ID: 4605082_1404_07

2

1 3

4

6

Note: This scheme is a general example without shut-off valves or safety equipment. This does not replace the need for on-site engineering.

Equipment required

ID: 4605082_1404_07Pos. Title Part no.1 Boiler See Viessmann pricelist2 Shunt pump BP On site3 Vitotrans 300 See Viessmann pricelist4 Circulation pump (if required) On site5 Contactor relay 7814 6816 Neutralising system and accessories See Viessmann pricelist

Flue gas/water heat exchangers for the utilisation of condensing technology (cont.)

System examples VIESMANN 175

5822

471

GB

5

Page 173: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Wiring diagramFor connecting the circulation pump of the Vitotrans 300 flue gas/waterheat exchanger

M1~

20

N L

N L20 A1

K6

ID: 4605082_1404_07

sÖ Plug A1 at the Vitotronic 100, Vitotronic 200 or Vitotronic 300

With this type of wiring at plug sÖ A1, implement alternative, optionalfunctions on site.Shunt pump 2 is connected at the boiler control unit.Alternatively, pump 4 can be connected via AM1 extension.

Flue gas/water heat exchangers for the utilisation of condensing technology (cont.)

176 VIESMANN System examples

5

5822

471

GB

Page 174: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

5.3 Multi boiler system: Boilers with Vitotrans 300 flue gas/water heat exchanger in lowtemperature heating circuits with shunt pump

ID: 4605083_1404_07

ApplicationsHeating system with favourably low return temperatures for the uti-lisation of condensing technology.Utilisation of condensing technology for gas and oil combustion up to6000 kW rated boiler heating output is feasible.

Main components■ Vitoplex, Vitorond or Vitomax■ Shunt pump for raising the return temperature of each boiler■ Vitotrans 300■ Circulation pump for Vitotrans 300.For control equipment, see the technical guide for the relevant boiler.

Function descriptionThe Vitotrans 300 4/qP is hydraulically connected to low temperatureheating circuit qE. This enables an optimum utilisation of condensingtechnology. The flow rate of the connected boilers can be channelledwholly or partially via the Vitotrans 300.

NoteThis scheme is a general system example. Refer to the relevanttechnical guides when designing for specific applications.

Required codes

ID: 4605083_1404_07Service address Vitotronic 100, 200, 300Group Code Function"General" "4C:3" Flue gas/water heat exchanger circulation pump at plug sÖ A1.Service address, alternative when using AM1 extension"Boiler" "33:3" Circulation pump, neutralising system or flue gas/water heat exchang-

er

Flue gas/water heat exchangers for the utilisation of condensing technology (cont.)

System examples VIESMANN 177

5822

471

GB

5

Page 175: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Hydraulic installation scheme ID: 4605083_1404_07

KW

WW

12

118

9

5

3

2

6

13

1 4 7 1015 15

Note: This scheme is a general example without shut-off valves or safety equipment. This does not replace the need for on-site engineering.

Equipment required

ID: 4605083_1404_07Pos. Title Part no.1 Boiler I See Viessmann pricelist2 Shunt pump BP On site3 Motorised boiler shut-off damper See Viessmann pricelist4 Vitotrans 300 I See Viessmann pricelist5 Circulation pump for the Vitotrans 300 (if required) On site6 Motorised shut-off damper of the Vitotrans 300 See Vitoset pricelist7 Boiler II See Viessmann pricelist8 Shunt pump BP On site9 Motorised boiler shut-off damper See Vitoset pricelistqP Vitotrans 300 II See Viessmann pricelistqQ Circulation pump for the Vitotrans 300 (if required) On siteqW Motorised shut-off damper of the Vitotrans 300 See Vitoset pricelistqE Low temperature heating circuit On siteqR Contactor relay 7814 681qT Neutralising system and accessories See Viessmann pricelist

Flue gas/water heat exchangers for the utilisation of condensing technology (cont.)

178 VIESMANN System examples

5

5822

471

GB

Page 176: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Wiring diagramFor connecting the circulation pump and the motorised shut-offdamper of the Vitotrans 300 flue gas/water heat exchanger.

L1 N

qR

5 qQ

M1~

M1~

20 A120

K6

/ 6 qW/

N L

ID: 4605083_1404_07

sÖ Plug A1 at the Vitotronic 100

With this type of wiring at plug sÖ A1, implement alternative, optionalfunctions on site.Shunt pumps 2 and 8 and motorised shut-off dampers 3 and9 are connected at the relevant boiler control unit.Alternatively, pump 5 with shut-off damper 6 or pump 11 with shut-offdamper 12 can be connected at AM1 extension.

Flue gas/water heat exchangers for the utilisation of condensing technology (cont.)

System examples VIESMANN 179

5822

471

GB

5

Page 177: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

5.4 Multi boiler system: Boilers with Vitotrans 300 flue gas/water heat exchanger in lowtemperature heating circuits with boiler circuit pump

ID: 4605084_1404_07

ApplicationsHeating system with favourably low return temperatures for the uti-lisation of condensing technology.Utilisation of condensing technology for gas and oil combustion up to6000 kW rated boiler heating output is feasible.

Main components■ Vitoplex, Vitorond or Vitomax■ 3-way mixing valve for raising the return temperature of each boiler■ Vitotrans 300■ Circulation pump for Vitotrans 300.For control equipment, see the technical guide for the relevant boiler.

Function descriptionThe Vitotrans 300 4/qP is hydraulically connected to low temperatureheating circuit qE. This enables an optimum utilisation of condensingtechnology. The flow rate of the connected boiler can be channelledwholly or partially via the Vitotrans 300.

NoteThis scheme is a general system example. Refer to the relevanttechnical guides when designing for specific applications.

Required codes

ID: 4605084_1404_07Service address Vitotronic 100, 200, 300Group Code Function"General" "4C:3" Flue gas/water heat exchanger circulation pump at plug sÖ A1.Service address, alternative when using AM1 extension"Boiler" "33:3" Circulation pump, neutralising system or flue gas/water heat exchang-

er

Flue gas/water heat exchangers for the utilisation of condensing technology (cont.)

180 VIESMANN System examples

5

5822

471

GB

Page 178: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Hydraulic installation scheme ID: 4605084_1404_07

13

3

2

9

8

1 74 10

5

6

11

12

KW

WW

Note: This scheme is a general example without shut-off valves or safety equipment. This does not replace the need for on-site engineering.

Equipment required

ID: 4605084_1404_07Pos. Title Part no.1 Boiler I See Viessmann pricelist2 Boiler circuit pump On site3 3-way motorised valve See Vitoset pricelist4 Vitotrans 300 I See Viessmann pricelist5 Circulation pump for the Vitotrans 300 (if required) On site6 Motorised shut-off damper of the Vitotrans 300 See Vitoset pricelist7 Boiler II See Viessmann pricelist8 Boiler circuit pump On site9 3-way motorised valve See Vitoset pricelistqP Vitotrans 300 II See Viessmann pricelistqQ Circulation pump for the Vitotrans 300 (if required) On siteqW Motorised shut-off damper of the Vitotrans 300 See Vitoset pricelistqE Low temperature heating circuit On siteqR Contactor relay 7814 681 Further system components in the Vitocrossal sample applications

Wiring diagramFor connecting the circulation pump of the Vitotrans 300 flue gas/waterheat exchanger

Flue gas/water heat exchangers for the utilisation of condensing technology (cont.)

System examples VIESMANN 181

5822

471

GB

5

Page 179: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

L1 N

qR

5 qQ

M1~

M1~

20 A120

K6

/ 6 qW/

N L

ID: 4605084_1404_07

sÖ Plug A1 at the Vitotronic 100

With this type of wiring at plug sÖ A1, implement alternative, optionalfunctions on site.Boiler circuit pumps 2 and 8 and motorised 3-way valves 3 and9 are connected at the relevant boiler control unit.Alternatively, pump 5 with shut-off damper 6 or pump 11 with shut-offdamper 12 can be connected at AM1 extension.

Flue gas/water heat exchangers for the utilisation of condensing technology (cont.)

182 VIESMANN System examples

5

5822

471

GB

Page 180: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

6.1 Overview of system examplesDHW heating with cylinder loading system See page 184

ID: 4605085_1404_07

DHW heating with cylinder loading system

System examples VIESMANN 183

5822

471

GB

6

Page 181: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

6.2 DHW heating with cylinder loading system

ID: 4605085_1404_07

The Viessmann cylinder loading system is a combination of a Vitocell100-L DHW cylinder 8 and a Vitotrans 222 heat exchanger set 3.The cylinder loading system for DHW heating is a preferred choicefor:■ Large cylinder capacities with offset heating and draw-off times, e.g.

water is drawn off in bursts at schools, sports centres, hospitals,army barracks, communal buildings, etc.

■ Heating circuits requiring low return temperatures or those where thereturn temperatures are limited, e.g. for district heating or condens-ing boilers. The wide DHW spread leads to a low return temperatureon the heating water side; this brings advantages through high con-densation rates when utilising condensing technology.

■ Short-term peak loads, i.e. high draw-off rates and various re-heattimes, e.g. DHW heating in swimming pools, sport facilities, industrialcompanies, etc.

■ Limited space as the cylinder loading system can transfer a highoutput.

Only the following control units 2 can regulate the cylinder loadingsystem:■ Vitotronic 100, type GC1B, GC4B■ Vitotronic 200, type GW1B■ Vitotronic 300, type GW2B, GW4B■ Vitotronic 300-K, type MW1B, MW2Bor■ Vitotronic 200-H, type HK1B, HK3B

NoteThis scheme is a general system example. Refer to the relevanttechnical guides when designing for specific applications.

Required codes

ID: 4605085_1404_07Service address Vitotronic 100, 200, 300, 300-K or 200-HGroup Code Function"General" "4C:1" Primary pump, cylinder loading system"General" "4E:2" Connection at plug gS A1."DHW" "55:3" Cylinder temperature control, cylinder loading systemIn addition for the Vitotrans 222 with 240 kW"DHW" "6A:113" For heat exchanger set Vitotrans 222 (240 kW), select runtime 113 s

DHW heating with cylinder loading system (cont.)

184 VIESMANN System examples

658

22 4

71 G

B

Page 182: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Hydraulic installation scheme ID: 4605085_1404_07

KW

WW

8

10

11

2

1

9

3

4

5

6

7

Note: This scheme is a general example without shut-off valves or safety equipment. This does not replace the need for on-site engineering.

Equipment required

ID: 4605085_1404_07Pos. Title Part no.1 Boiler See Viessmann pricelist2 Vitotronic Standard delivery pos. 1,

see Viessmann pricelist forthe Vitotronic 200-H

3 Vitotrans 222 (heat exchanger set) See Viessmann pricelist4 Mixer assembly (for Vitotrans 222) See Viessmann pricelist5 Primary pump in the cylinder loading system Standard delivery pos. 36 Secondary pump in the cylinder loading system Standard delivery pos. 37 Temperature sensor Vitotrans 222 Standard delivery pos. 48 DHW cylinder Vitocell 100-L See Viessmann pricelist9 Cylinder temperature sensor STS, bottom Standard delivery of

Vitotronic 200, 300 and300-Kor7438 702 for the Vitotronic100/200-H

qP Cylinder temperature sensor STS, top Standard delivery pos. 4qQ DHW circulation pump ZP On siteqW Outside temperature sensor ATS (connect only for the Vitotronic 200-H) Further system components: see the system examples for the respective boiler

NoteThis version can only be operated with the following types of control unit: Vitotronic 100, type GC1B, type GC4B; Vitotronic 200, type GW1B;Vitotronic 300, type GW2B, type GW4B; Vitotronic 300-K, type MW1B, MW2B or Vitotronic 200-H, type HK1B, HK3B.Pos. 4 and 7 are not required when operating with a constant flow temperature.

DHW heating with cylinder loading system (cont.)

System examples VIESMANN 185

5822

471

GB

6

Page 183: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Electrical installation scheme

ZP

230

V/ 5

0 H

z

2

11

40

50

29

20 A1

52 A1

21

28

UPSB 6

230 V/ 50 Hz

5

4

Low

vol

tage

1

146

143

15 12

145

145

349

3/2 12

5B

5A

17B

17A 1234

Main PCB

STS 9

7

STS 10

12ATS

N

L

L

N

L

N

L

N

N

L

N

L

NM1~

M1~

M1~

M1~

1

32

1

32

1

32

1234

1234

ID: 4605085_1404_07

NoteThe cylinder loading system can be regulated by the Vitotronic 100, 200, 300 or 300-K.If these control units are not available or if there are several cylinder loading systems, control can also be achieved via a mixer control of theVitotronic 200-H, type HK1B or HK3B.Order an additional cylinder temperature sensor if the cylinder loading system is controlled by a Vitotronic 100, type GC1B, type GC4B orVitotronic 200-H, type HK1B or HK3B. In multi boiler systems, the cylinder loading system is controlled by the Vitotronic 300-K, type MW1B or MW2B.

DHW heating with cylinder loading system (cont.)

186 VIESMANN System examples

658

22 4

71 G

B

Page 184: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

7.1 Overview of system examplesVitobloc 200, type EM-6/13 / EM-9/15 / EM-20/39 (CHP unit utilisinginternal condensing technology) with two heating circuits with mixer,heating water buffer cylinder, multi boiler system and DHW heating

Vitobloc 200 from type EM-50/81 with two heating circuits with mixer,heating water buffer cylinder, boiler with shunt pump and DHW heat-ing

See page 188

ID: 4605447_1404_01

See page 221

ID: 4605112_1404_06Vitobloc 200, type EM-6/13 / EM-9/15 / EM-20/39 (CHP unit utilisinginternal condensing technology) with two heating circuits with mixer,heating water buffer cylinder, condensing boiler and DHW heating

Vitobloc 200, from type EM-50/81 with two heating circuits with mixer,heating water buffer cylinder, condensing boiler and DHW heating

See page 197

ID: 4605544_1404_02

See page 229

ID: 4605113_1404_06Vitobloc 200, type EM-6/13 / EM-9/15 / EM-20/39 (CHP unit utilisinginternal condensing technology) with two heating circuits with mixer,heating water buffer cylinder, boiler (with Therm-Control) and DHWheating

Vitobloc 200 from type EM-50/81 with two heating circuits with mixer,heating water buffer cylinder, multi boiler system (low temperatureboiler, condensing boiler) and DHW heating

See page 205

ID: 4605109_1404_06

See page 236

ID: 4605115_1404_08Vitobloc 200 from type EM-50/81 with two heating circuits with mixer,heating water buffer cylinder, condensing boiler and DHW heating

See page 213

ID: 4605110_1404_06

Combined heat and power unit (CHP) Vitobloc 200

System examples VIESMANN 187

5822

471

GB

7

Page 185: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

7.2 Vitobloc 200, type EM-6/13 / EM-9/15 / EM-20/39 (CHP unit utilising internal condensingtechnology) with two heating circuits with mixer, heating water buffer cylinder, multi boilersystem and DHW heating

ID: 4605447_1404_01

ApplicationsThe CHP unit and the lag boilers must be matched to the entire system.See CHP unit technical guides.■ For the base load: CHP unit Vitobloc 200 with low return tempera-

ture■ For the peak load: multi boiler system (Vitodens)

Main components■ Vitobloc 200, type EM-6/13 / EM-9/15 / EM-20/39 (CHP unit utilising

internal condensing technology)■ Multi boiler system Vitodens 200-W, 45 to 150 kW with

– Hydraulic cascade and low loss header– Vitotronic 100, HC1B for every boiler– Vitotronic 300-K, MW2B– Connection accessories

■ Vitotronic 200-HK1B (optional)■ Variable speed pump (CHP)■ Heating water buffer cylinder (recommendation: see technical guide)■ Cylinder level control (CHP) for the heating water buffer cylinder■ DHW cylinder

Function descriptionVariable speed pump 5 delivers the total flow rate of CHP unit 1 ata constant flow temperature to heating water buffer cylinder tP. Therespective speed of pump 5 is regulated by control unit 2 of CHPunit 1. Heating water buffer cylinder tP is integrated in the systemreturn.CHP unit 1 is started and stopped via cylinder level controller SFR7. If the actual temperature falls below the selected temperature attemperature sensor T1 tE (recommendation 70 °C),CHP unit 1 isstarted. If the selected temperature at temperature sensor T2 tR (rec-ommendation 65 °C) is exceeded,CHP unit 1 is stopped.

For utilising condensing technology with CHP unit 1, there is noreturn temperature raising. The flow rate is regulated by a variablespeed pump 5. A condensate drain is required for utilising condens-ing technology of CHP unit 1. No neutralising system is required.Multi boiler system eP is started in modulating mode for CHP unit1 with load-dependent operation. Circulation pumps rW/rE integra-ted into the connection accessories supply the boiler circuit up to thelow loss header.

Heating up the heating water buffer cylinder and heating modeIf the actual temperatures fall below the set temperatures at both tem-perature sensors tE and tR in heating water buffer cylinder tP, thenCHP unit 1 is started via cylinder level controller SFR 7.CHP unit 1 heats up heating water buffer cylinder tP until the tem-perature at both temperature sensors tE and tR in heating water buf-fer cylinder tP is above the selected set temperature.Heating water buffer cylinder pump tW is started when the selectedtemperature at temperature sensor tE is exceeded and stops whenthe temperature falls below the selected temperature at temperaturesensor tE.Heating water buffer cylinder pump tW is sized on site, and the pumprate must be ≥ the maximum pump rate of variable speed pump 5.If the temperature at the flow temperature sensor in the low loss headerrQ falls below the selected set temperature, multi boiler system eP isswitched to load-dependent operation.

DHW heating by the boilerDHW cylinder wP is heated via multi boiler system eP and is regulatedvia control unit eZ. If the actual temperature falls below the set DHWtemperature selected at control unit eZ, the circulation pump for cyl-inder heating UPSB wW supplies DHW cylinder wP. The heat in thebuffer cylinder is utilised.

NoteThis scheme is a general system example. Refer to the relevanttechnical guides when designing for specific applications.

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

188 VIESMANN System examples

7

5822

471

GB

Page 186: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Required codes

ID: 4605447_1404_01Service address Vitotronic 300-K, type MW2B / pos. eZGroup Code Function"General" "00:8" Two heating circuits with mixer M2 (heating circuit 2) and M3 (heating

circuit 3) with DHW heating"General" "7E: !" Matching to existing flue system"Cascade" "35:2" Number of connected heat generators"Cascade" "38:1" Changeover of lead boiler (monthly)Service address Vitotronic 100, type HC1B / pos. eQ"Boiler" "01:2" Multi boiler system with cascade control"Boiler" "07:1" Consecutive boiler number in multi boiler systems"General" "7E: !" Matching to existing flue systemService address Vitotronic 100, type HC1B / pos. eW"Boiler" "01:2" Multi boiler system with cascade control"Boiler" "07:2" Consecutive boiler number in multi boiler systems"General" "7E: !" Matching to existing flue systemService address Vitotronic 200-H, type HK1B / pos. iR"General" "81:3" Control unit receives the time"General" "97:1" Control unit receives outside temperature

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

System examples VIESMANN 189

5822

471

GB

7

Page 187: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Hydraulic installation scheme ID: 4605447_1404_01

KW

WW

--36

/5A

--

--36/2M2--

-36/

20M

2-

--PT1----PT4--

--36

/21-

-

--2/X5/2;N--

--P

T1--

--P

T4--

--2/X5/1;N----2/X5/5;6----2/X5/2;N----2/X5/1;N--

--2/X5/5;6--

--400V--

--24V----ST44--

--400V--

--40--

--145--

--17B----20M1----52M1--

--36/2M3--

-36/

20M

3-

--36/52M3--

--36/28--

--LON--

--230V----230V--

--28--

--145----20--

--145----21--

--36/

3/2-

-

--36/

1--

--52M2--

--52M3----20M3--

--3/2--

--LON----1----5A--

--230V----145--

--20--

--32/

20--

--31/

20--

--2M3----2M2--

-

--84/17B--

-84/

20M

1-

--84/52M1--

--36/52M2--

--20M2--

HK

1B

HC

1BH

C1B

MW

2BC

HP

unit

SFR

----

--

--

--

20

21

2330

35

4243

3231

362

113

6

3

5

40

4122

63

62

61

6070

71

72

73

80

81

82

83

84

7

50

5453

52

34

51

Note: This scheme is a general example without shut-off valves or safety equipment. This does not replace the need for on-site engineering.

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

190 VIESMANN System examples

7

5822

471

GB

Page 188: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Equipment required

ID: 4605447_1404_01Pos. Title Part no.1 CHP unit Vitobloc 200, type EM-6/13 / EM-9/15 / EM-20/39 See Viessmann pricelist2 CHP control unit Standard delivery pos. 13 Flexible connection Standard delivery pos. 14 Auxiliary temperature sensor Standard delivery pos. 15 Variable speed pump with 0 to 10 V switching module On site6 Diaphragm expansion vessel On site7 Cylinder level controller SFR 3000 7511 6888 Power supply On siteqE Gas meter On sitewP DHW cylinder See Viessmann pricelistwQ Cylinder temperature sensor STS Standard delivery pos. 11wW Circulation pump for cylinder heating UPSB See Viessmann pricelistwE DHW circulation pump ZP See Vitoset pricelisteP Multi boiler system with 2, 3 or 4 Vitodens 200-W, hydraulic cascade and low loss header and

connection accessories withSee Viessmann pricelist

eQ Constant temperature control unit HC1B Multi boiler systemstandard delivery

eW Constant temperature control unit HC1B Multi boiler systemstandard delivery

eE LON communication module 7172 174eR Extension for heating circuits 2 and 3 with mixer 7164 403eT Outside temperature sensor ATS Multi boiler system

standard deliveryeZ Vitotronic 300-K, MW2B Multi boiler system

standard deliveryrP Low loss header Hydraulic cascade

standard deliveryrQ Flow temperature sensor for low loss header Hydraulic cascade

standard deliveryrW Circulation pump Hydraulic cascade

standard deliveryrE Circulation pump Hydraulic cascade

standard deliverytP Heating water buffer cylinder On sitetQ Check valve On sitetW Heating water buffer cylinder discharge pump On sitetE Buffer temperature sensor T1 (top) Standard delivery pos. 7tR Buffer temperature sensor T2 (bottom) Standard delivery pos. 7zP Heating circuit I zQ Flow temperature sensor M2 (heating circuit I) Standard delivery pos. 64zW Heating circuit pump M2 (heating circuit I) On sitezE 3-way mixer M2 (heating circuit I) See Viessmann pricelistzR Extension kit for heating circuit with mixer (mixer motor and flow temperature sensor) 7441 998uP Heating circuit II uQ Flow temperature sensor M3 (heating circuit II) Standard delivery pos. 74uW Heating circuit pump M3 (heating circuit II) On siteuE 3-way mixer M3 (heating circuit II) See Viessmann pricelistuR Extension kit for heating circuit with mixer (mixer motor and flow temperature sensor) 7441 998iP Heating circuit III (optional)iQ Flow temperature sensor M1 (heating circuit III) Standard delivery pos. 85iW Heating circuit pump M1 (heating circuit III) On siteiE 3-way mixer M1 (heating circuit III) See Viessmann pricelistiR Vitotronic 200-H, type HK1B Z009 462iT Extension kit for heating circuit with mixer (mixer motor and flow temperature sensor) 7441 998iZ LON communication module 7172 173iU LON connecting cable 7143 495

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

System examples VIESMANN 191

5822

471

GB

7

Page 189: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

ID: 4605447_1404_01Pos. Title Part no. Accessoriesq-P EA1 extension 7452 091q-Q 1 switching output (floating changeover contact)

– Switching a feed pump to a substation– Signalling reduced mode for a heating circuit

q-W 1 analogue input 0-10 V– Set flow temperature default

q-E 3 digital inputs– External changeover of operating state for heating circuits 1 to 3, may be switched individually– External blocking with central fault message– Fault messages– Brief operation of the DHW circulation pump

q-R Central fault message On siteq-T Vitotrol 200A (KM BUS subscriber) Z008 341q-Z Vitotrol 300A (KM BUS subscriber) Z008 342 Alternative to hardwired Vitotrol 200A and 300A remote control qXE Wireless base station Z011 413qXR Vitotrol 200 RF Z011 219qXT Vitotrol 300 RF with table-top dock Z011 410qXZ Vitotrol 300 RF with wall mounting bracket Z011 412qXU Wireless outside temperature sensor 7455 213qXI Wireless repeater 7456 538qXO Radio clock receiver 7450 563q-I KM BUS distributor, for several KM BUS subscribers 7415 028 KM BUS subscribers:

– Vitotronic 300-K, MW2B– Vitotrol 200A– Vitotrol 300A

See Viessmann pricelist

q-O Vitocom 200, type LAN2 with LON communication module Z011 816 Vitocom 300, type LAN3 with LON communication module Z011 819 External hook-ups qYP External blocking/mixer CLOSE qYQ - External demand qYW External operating program changeover/mixer OPEN For the power supply 8

(oQ to oR only for mains substitution mode)On site

oP Mains feed connection 400 V oQ Actual mains voltage 400 V/2 A from the mains isolator oW Feedback, mains isolator is "ON" oE Feedback, mains isolator is "OFF" oR Switching mains isolator "ON/OFF" For the CHP control unit 2 oT Message: "Module ready" (floating contact) oZ Message: "Module operating" (floating contact) oU Message "Warning" (floating contact) oI Message "Service due" (floating contact) oO Message: "Central fault" (floating contact) qR External "emergency stop pushbutton" qYE External set value signal for modulating operation 0 - 20 mA/ 50 - 100 % output qYR External selection "heating mode" 100 % output qYT External selection "power mode" 50 - 100 % modulating operation qYZ High limit safety cut-out, flue gas, for plastic systems qYU External fault input "external fault 2" (for free allocation) qYI External fault input "external fault 3" (for free allocation) qYO External fault input "external fault 4" (for free allocation) qXP External demand heat generator qXQ Power supply 24 VDC for optional return control valve qXW 0 - 10 V signal for optional return control valve or set value signal for variable speed heating water

pump

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

192 VIESMANN System examples

7

5822

471

GB

Page 190: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Electrical installation scheme CHP module

L3

L1

N

L2X1400V

9

7

N

8X1400V

14

12

15

13X124 V DC

78

X5zero volt

1011

X124 V DC

1617

X1

3132

X1

3536

X1

CHP unit

3940

X1

4142

X1

4344

X1

4546

X1

2N

X5230V

1N

X5230V

34

X5

56

X50 - 10V

CAN

PT3

PT4

PT2

PT1

1314

25 K5

25 K6

25 K7

25 K8

1314

1314

1314

M1~

SFR 3000

PTSO

PLP

M1~ PELP

PTSU

1314

26 K7

LON

24 V DC

ST44

4

CAN CLCH0V24V

16151413

1211

1425 K10

2 8

90

91

92

93

94

14

52

5

95

96

97

98

99

7

53

54

113

114

115

117

118

119

121

122

120

116

ID: 4605447_1404_01

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

System examples VIESMANN 193

5822

471

GB

7

Page 191: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Electrical installation scheme, boiler and heating circuit control

LP A2

1

146

143

145

145

LON

3/2 12

5B

5A

17B

17A 1234

Low

vol

tage

12 M3 71

1M2 612

2 M3

M2

LP A12

STS 21

VTS 41

35ATS

31

Low

vol

tage

ZP

230

V/5

0 H

z

36

23

156

40

50

29

20 A1

52 A1

21

28 M1~

UPSB 22

LP A3

S

36

40

36

M3 72

M2 63

M3 73

L

N

20

52

52

20 M3

M2

M3

M2

230

V/5

0 H

z

4036

156

145

LON

KM BUS145

145

40

40A

157

0-10V

145

34

DE3

145

DE2

DE1

EA1

KM BUS distributor

36

145

230 V/50 Hz

33

230 V/50 Hz

145

34LP A1

LP A3

104

111

107

108 108

109105 / 106

110

112

M2 62

84

100

101

102

103

103

103

MW2B MW2B

/ / 116

1

32

1

32

1

32

1234

1234

L

N

L

N

L

N

L

N

N

L

N

L

N

M1~

L

N

N

M1~

M1~

NM1~

1

32

L

N

S

12

12

12

1

32

N

L

N

L

N

L

M1~

1

32

12

ID: 4605447_1404_01

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

194 VIESMANN System examples

7

5822

471

GB

Page 192: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

LP A2

1

146

143

145

145

LON

3/2 12

5B

5A

17B

17A 1234

1234

Low

vol

tage

35ATS

230

V/5

0 H

z

84

156

40

50

29

20 M1

52 M1

21

28

230 V/50 Hz

LP A3

S

1

40

LON

86

LP1 82

M1 83

VTS/M1 81

N

L

104

107

36

KM BUS 108

HK1B

1

32

1

32

1

32

1234

L

N

L

N

L

N

L

N

N

L

N

L

N

M1~

M1~

ID: 4605447_1404_01

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

System examples VIESMANN 195

5822

471

GB

7

Page 193: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

230 V/50 Hz

230

V/5

0 H

zLo

w v

olta

ge

20 42

KMK2

KMK1

230 V/50 Hz

230

V/5

0 H

zLo

w v

olta

ge

43

36

145

96

35

12341

2

12

5 12

111

40

100

20

KMK2

KMK1

96

35

12341

2

12

5 12

111

40

100

32 HC1B

31 HC1B

L

NM1~

M1~

L

N

L

N

L

N

1234

L

NL

N

L

N

L

N

1234

N

L

N

L

ID: 4605447_1404_01

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

196 VIESMANN System examples

7

5822

471

GB

Page 194: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

7.3 Vitobloc 200, type EM-6/13 / EM-9/15 / EM-20/39 (CHP unit utilising internal condensingtechnology) with two heating circuits with mixer, heating water buffer cylinder, condens-ing boiler and DHW heating

ID: 4605544_1404_02

ApplicationsThe CHP unit and lag boiler must be matched to the entire system.See CHP unit technical guides.■ For the base load: Vitobloc 200 with low return temperature of 35°

to 45 °C■ For the peak load: Vitocrossal 200/300 condensing boiler

Main components■ Vitobloc EM-6/13 / EM-9/15 / EM-20/39 (CHP unit utilising internal

condensing technology)■ Vitocrossal 200

orVitocrossal 300

■ Vitotronic 300, type GW2B or GW4B■ Vitotronic 200-H (option)■ Variable speed pump (CHP) for heating the heating water buffer cyl-

inder■ Heating water buffer cylinder (recommendation: see technical guide)■ Cylinder level control (CHP) for the heating water buffer cylinder■ DHW cylinder

Function descriptionVariable speed pump 5 delivers the total flow rate of CHP unit 1 ata constant flow temperature to heating water buffer cylinder qT. Therespective speed of pump 5 is regulated by control unit 2 of CHPunit 1. Heating water buffer cylinder qT is integrated in the systemflow and return.CHP unit 1 is started and stopped via cylinder level controller SFR3000 3.The start and stop points can be freely defined via buffer temperaturesensors 7/8/9/qP.

When the heating water buffer temperature at the selected top buffertemperature sensor falls below its set value, CHP module 1 starts.When heating water buffer cylinder qT has reached its set value at theselected bottom buffer temperature sensor, CHP module 1 stopsagain.When the top buffer temperature sensor reaches its set value, bufferdischarge pump 6 starts and the heating water is delivered from buf-fer cylinder qT to the system flow.For utilising condensing technology with CHP unit 1, there is noreturn temperature raising. The flow rate is regulated by a variablespeed pump 5. A condensate drain is required for utilising condens-ing technology of CHP unit 1. No neutralising system is required.

Condensing boiler in heating modeAs long as flow temperature sensor wZ receives sufficient heatingwater from heating water buffer cylinder qT, system mixer wE remainsclosed.When the system flow rate exceeds the flow rate of buffer dischargepump 6, the temperature at flow temperature sensor wZ drops andsystem mixer wE opens.This draws excess system return water through the condensingboiler.The condensing boiler generates the missing heat and regulates thesystem flow to its set value via mixer wE.

DHW heating by the boilerDHW cylinder eP is heated via condensing boiler wP and is regulatedvia boiler control unit wQ. If the actual temperature falls below the setDHW temperature selected at boiler control unit wQ, 3-way mixingvalve wE fully changes its throughput over from the condensing boilertowards DHW cylinder eP, and circulation pump for cylinder heatingUPSB eW supplies DHW cylinder eP.

NoteThe switching times and heating curve from mixer circuit wE must bematched to heating circuit rP and to the heating circuits of theVitotronic 200-H.The flow resistance via the heating water buffer cylinder must be higherthan that via the boiler.

NoteThis scheme is a general system example. Refer to the relevanttechnical guides when designing for specific applications.

Required codes

ID: 4605544_1404_02Coding address Vitotronic 300, type GW2B / pos. wQGroup Code Function"General" "00:8" Two heating circuits with mixer M2 (heating circuit 2) and M3 (heating

circuit 3) with DHW heating"General" "9A:2" External "mixer open" heating circuit with mixer M2 (heating circuit 2)"Boiler" "02:1"

or "02:2"

Two-stage burner (delivered condition)

Modulating burnerCoding address Vitotronic 200-H, type HK1B / pos. tT"General" "81:3" Control unit receives the time"General" "97:1" Control unit receives outside temperature

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

System examples VIESMANN 197

5822

471

GB

7

Page 195: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Hydraulic installation scheme ID: 4605544_1404_02

KW

WW

--21/5A--

-21/2M3-

-21/20M3-

-21/52M3-

--21

/1--

--21/21--

--2/

X5.

2;N

--

--LO

N--

--5A

----

1--

--2M

2--

--2M

3--

--2/

X5.

1;N

----

2/X

5.5;

6--

--21/2M2--

--21/52M2--

---

--40

----

20M

1--

--52

M1-

-

--2-

---

LON

----

145-

-

-55/

3/2-

-55/20M1-

-55/

52M

1-

--21/28--

--28

----

21--

--52

M3-

---

20M

3--

--52

M2-

---

40--

GW2B/GW4B

HK1B

--3/PT1--

--3/PT2--

--3/PT3--

--3/PT4--

--C

AN

----

PT1

----

PT2

----

PT3

----

PT4

--

--24

V--

SFR 3000CHP unit

--CAN

----X

5.5;

6--

--400

V--

--24V

----X

5.1;

N--

--X5.

2;N

--

-------

33

31

30

21

20

22

12

23

2632

16

2

111

12

4

5

3

15

10

9

8

7

6

44

43

42

40

55

50

52

53

54

Note: This scheme is a general example without shut-off valves or safety equipment. This does not replace the need for on-site engineering.

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

198 VIESMANN System examples

7

5822

471

GB

Page 196: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Equipment required

ID: 4605544_1404_02Pos. Title Part no.1 CHP unit Vitobloc 200, type EM-6/13 / EM-9/15 / EM-20/39 See Viessmann pricelist2 CHP control unit Standard delivery pos. 13 Cylinder level controller SFR 3000 7511 6884 Flexible connection Standard delivery pos. 15 Variable speed pump with 0 to 10 V switching module for heating the heating water buffer cylinder On site6 Circulation pump for buffer discharge On site7 Top buffer temperature sensor PTSO Standard delivery pos. 28 Buffer temperature sensor PTS Standard delivery pos. 29 Buffer temperature sensor PTS Standard delivery pos. 2qP Bottom buffer temperature sensor PTSU Standard delivery pos. 2qQ Gas meter On siteqW Expansion vessel See Vitoset pricelistqE Power supply On siteqT Heating water buffer cylinder On siteqZ Check valve On sitewP Vitocrossal 200/300 boiler See Viessmann pricelistwQ Boiler control unit Vitotronic 300, type GW2B or GW4B Standard delivery pos. 20wW Outside temperature sensor ATS Standard delivery pos. 21wE 3-way mixing valve/mixer (switched by pos. 21) See Viessmann pricelistwZ Flow temperature sensor

– Contact temperature sensoror

– Immersion temperature sensorSensor well 100 mm / 150 mm long

7426 463

7438 7027816 035 / 7817 326

wI Boiler water temperature sensor KTS Standard delivery pos. 21wO Flue gas temperature sensor AGS 7452 531eP DHW cylinder See Viessmann pricelisteW Circulation pump for cylinder heating UPSB See Viessmann pricelisteQ Cylinder temperature sensor STS Standard delivery pos. 21eE DHW circulation pump ZP See Vitoset pricelistrP Heating circuit I M3 rE Heating circuit pump M3 (heating circuit I) On siterQ Extension kit for one heating circuit with mixer comprising: 7441 998rW – Flow temperature sensor M3 (heating circuit I)

and

rR – Mixer motor M3 (heating circuit I)or

rW – Contact temperature sensoror

7426 463

– Immersion temperature sensorSensor well 100 mm / 150 mm long

and

7438 7027816 035 / 7817 326

rR Mixer motor M3 for flanged mixer and plug See Viessmann pricelisttP Heating circuit II M1 tE Heating circuit pump M1 (heating circuit II) On sitetQ Extension kit for one heating circuit with mixer comprising 7141 998tW Flow temperature sensor M1 (heating circuit II)

and

tR Mixer motor M1 (heating circuit II) or tW – Contact temperature sensor

or7426 463

– Immersion temperature sensorSensor well 100 mm / 150 mm long(see pricelist for further heating circuit control units)

7438 7027816 035 / 7817 326

and tR Mixer motor for flanged mixer M1 (heating circuit II) See Viessmann pricelisttT Vitotronic 200-H, type HK1B

andZ009 462

qO LON communication module for pos. 55and

7172 173

LON cable 7143 495tZ Outside temperature sensor ATS (ATS value can be accepted by Vitotronic 300, type GW2B or

GW4B)Standard delivery pos. 55

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

System examples VIESMANN 199

5822

471

GB

7

Page 197: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

ID: 4605544_1404_02Pos. Title Part no. Boiler accessorieswI Boiler water temperature sensor KTS Standard delivery pos. 21wO Flue gas temperature sensor AGS 7452 531uO Plug-in adaptor for external safety equipment 7164 404iP Minimum pressure switch or limiter SDB 7438 030iQ Maximum pressure limiter SDB 7438 025iW Water level limiter (low water indicator) WB 9529 050 System accessories qI KM BUS distributor, for when there are several KM BUS subscribers

– EA1 extension uT– Vitotrol 200A, 300A iZ– Vitocom 100, type GSM2 iO– Wireless base station q-E

7415 028

qO LON communication module for communication with the following:- Vitotronic 200-H- Vitocom 200/300

7172 173See Viessmann pricelistSee Viessmann pricelist

uP Contactor relay 7814 681uT EA1 extension 7452 091uZ 1 switching output (floating changeover contact)

- Switching a feed pump to a substation- Signalling reduced mode for one heating circuit

uI 3 digital inputs- External changeover of operating state for heating circuits 1 to 3, may be switched individually - External blocking with central fault message facility- Fault messages- Brief operation of the DHW circulation pump

iE Central fault message system S On siteiZ Vitotrol 200A

Vitotrol 300AZ008 341Z008 342

The following wireless accessories are available as an alternative to hardwired remote control units: q-E Wireless base station Z011 413q-P Vitotrol 200 RF Z011 219q-Q Vitotrol 300 RF with table-top dock Z011 410q-W Vitotrol 300 RF with wall mounting bracket Z011 412q-R Wireless outside temperature sensor 7455 213q-T Wireless repeater 7456 538iU Radio clock receiver 7450 563uUiRiI

Vitocom 100, type GSM2Vitocom 200, type LAN2 with communication module and SIM cardVitocom 300, type LAN3 with LON communication module and SIM card

Z011 396 / Z011 388Z011 390Z011 399

For the power supply qE(oQ to oR only for mains substitution mode)

On site

rT ON/OFF switch oP Mains feed connection 400 V oQ Actual mains voltage 400 V/2 A from the mains isolator oW Feedback, mains isolator is "ON" oE Feedback, mains isolator is "OFF" oR Switching mains isolator "ON/OFF" For the CHP control unit 2 oT Message: "Module ready" (floating contact) oZ Message: "Module operating" (floating contact) oU Message: "Warning" (floating contact) oI Message: "Service due" (floating contact) oO Message: "Central fault" (floating contact) qR External "emergency stop pushbutton" q-Z External set value signal for modulating operation 0 - 20 mA/ 50 - 100 % output q-U External selection "heating mode" 100 % output q-I External selection "power mode" 50 - 100 % modulating operation q-O High limit safety cut-out, flue gas, for plastic systems qYP External fault input "external fault 2" (for free allocation) qYQ External fault input "external fault 3" (for free allocation) qYW External fault input "external fault 4" (for free allocation) qYE External demand heat generator qYR Power supply 24 VDC for optional return control valve qYT 0 - 10 V signal for optional return control valve or set value signal for variable speed heating water

pump

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

200 VIESMANN System examples

7

5822

471

GB

Page 198: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Electrical installation scheme CHP module

L3

L1

N

L2X1400V

9

7

N

8X1400V

14

12

15

13X124V DC

78

X5zero volt

1011

X124 V DC

1617

X1

3132

X1

3536

X1

CHP unit

3940

X1

4142

X1

4344

X1

4546

X1

2N

X5230V

1N

X5230V

34

X5

56

X50 - 10V

CAN

PT3

PT4

PT2

PT1

1314

25 K5

25 K6

25 K7

25 K8

1314

1314

1314

M1~

SFR 3000

PTSO

PTS

PTS

PLP

M1~ PELP

PTSU

1314

26 K7

LON

24 V DC

/ /

ST44

4

CAN CLCH0V24V

16151413

1211

1425 K10

2 13

90

91

92

93

94

14

6

5

84

95

96

97

98

99

3

7

8

9

10

106

107

108

110

111

112

114

115

113

85 88

109

ID: 4605544_1404_02

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

System examples VIESMANN 201

5822

471

GB

7

Page 199: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Electrical installation scheme, boiler and heating circuit control

230

V/5

0 H

z

151

90

41

150

156

156

40

50

29

20 A1

52 A1

21

28

LP A3

7

40

90

41

7

S

230 V/50 Hz

LP A1

N

L

GW2B / GW4B

ZP

UPSB

143

K1

4

4

4

SDB

SDB

WB145

145

L

N

L

N

L

N

L

N

N

L

N

L

N

L

N

M1~

M1~

1

32

P

P

21

21

21 45

83

70

32

21

33

79

80

81

82

ID: 4605544_1404_02

lÖ Only for GW2B

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

202 VIESMANN System examples

7

5822

471

GB

Page 200: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

KM BUS145

145

KM BUS distributor

145

L

N40

40A

157

0-10V

145

12

56DE3

34DE2

DE1

EA1

34Lo

w v

olta

ge

1

146

143

15 12

145

145

LON

349

3/2 12

KTS

5B

5A

17B

17A

ATS

1234

LP A2

AGS

145

230

V/5

0 H

z

HKP3

M2

LP A1

M3

12 VTS3

12 VTS2

20

52

52

20

2

2 M3

M2

M3

M2

M3

M2

LON

40 156 LP A3

GW2B / GW4B

K1

230 V/50 Hz

STS

/ /

1

32

1

32

1

32

L

N

S

12

12

1

32

1

32

1

32

1234

1234

L

N

N

M1~

M1~

NM1~

L

N

N

L

21

70

29

31

28

87

22

79

19 55 84 88

26

42

43

23

44

21

75 45

18

77 86 87

78

78

78

76

103

ID: 4605544_1404_02

wI KTS / wO AGS Only for GW2B

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

System examples VIESMANN 203

5822

471

GB

7

Page 201: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

LP A2

1

146

143

145

145

LON

3/2 12

5B

5A

17B

17A 1234

Low

vol

tage

230

V/5

0 H

z

156

40

L

N

50

29

20 M1

52 M1

21

28

230 V/50 Hz

LP A3

S

LON

M1

N

L

HK1B

M1

M1

ATS

/

//

/

1

32

1

32

1

32

1234

1234

L

N

L

N

N

L

N

L

N

M1~

L

NM1~

55

83

53

54

52

56

19

86 87

21 84 88

103

ID: 4605544_1404_02

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

204 VIESMANN System examples

7

5822

471

GB

Page 202: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

7.4 Vitobloc 200, type EM-6/13 / EM-9/15 / EM-20/39 (CHP unit utilising internal condensingtechnology) with two heating circuits with mixer, heating water buffer cylinder, boiler (withTherm-Control) and DHW heating

ID: 4605109_1404_06

ApplicationsThe CHP unit and lag boiler must be matched to the entire system.See CHP unit technical guides.■ For the base load: CHP unit Vitobloc 200 with low return tempera-

ture■ For the peak load: Low temperature boiler (Vitoplex / Vitorond)

Main components■ Vitobloc 200, type EM-6/13 / EM-9/15 / EM-20/39 (CHP unit utilising

internal condensing technology)■ Vitoplex 200 (up to 560 kW)

orVitoplex 300orVitorond 200 (125 to 270 kW)

■ Vitotronic 300, type GW2B■ Vitotronic 200-H (option)■ Variable speed pump (CHP) for heating the heating water buffer cyl-

inder■ Heating water buffer cylinder (recommendation: see technical guide)■ Cylinder level control (CHP) for the heating water buffer cylinder■ DHW cylinder

Function descriptionVariable speed pump 5 delivers the total flow rate of CHP unit 1 ata constant flow temperature to heating water buffer cylinder tP. Therespective speed of pump 5 is regulated by control unit 2 of CHPunit 1. Heating water buffer cylinder tP is integrated in the systemreturn.CHP unit 1 is started and stopped via cylinder level controller SFR7.The start or stop points can be freely defined via buffer temperaturesensors tE/tR/tT/tZ.

When the heating water buffer temperature at the selected top buffertemperature sensor falls below its set value, CHP module 1 starts.When heating water buffer cylinder tP has reached its set value at theselected bottom buffer temperature sensor, CHP module 1 stopsagain.When the top buffer temperature sensor reaches its set value, bufferdischarge pump tW starts and the heating water is delivered from buf-fer cylinder tP to the system return.For utilising condensing technology with CHP unit 1, there is noreturn temperature raising. The flow rate is regulated by a variablespeed pump 5. A condensate drain is required for utilising condens-ing technology of CHP unit 1. No neutralising system is required.Boiler qP is started in modulating mode for CHP unit 1 with load-dependent operation. Vitoplex or Vitorond boilers qP are protected viaTherm-Control.

Low temperature boiler in heating modeAs long as flow temperature sensor qR receives sufficient temperateheating water from heating water buffer cylinder tP, system mixerqW remains closed.When the system flow rate exceeds the flow rate of buffer dischargepump tW, the temperature at flow temperature sensor qR drops andsystem mixer qW opens.This draws excess system return water through the boiler.The condensing boiler generates the missing heat and regulates thesystem flow to its set value via mixer qW.

DHW heating by the boilerDHW cylinder wP is heated via boiler qP and is regulated via boilercontrol unit qQ. If the actual temperature falls below the set DHW tem-perature selected at boiler control unit qQ, 3-way mixing valve qW fullychanges its throughput over from the boiler towards DHW cylinderwP, and circulation pump for cylinder heating UPSB wW supplies DHWcylinder wP.

Note: The switching times and heating curve from mixer circuit M2must be matched to heating circuit M3 and to the heating circuits ofthe Vitotronic 200-H.The flow resistance via the buffer cylinder must be higher than that viacheck valve tQ.

NoteThis scheme is a general system example. Refer to the relevanttechnical guides when designing for specific applications.

Required codes

ID: 4605109_1404_06Service address Vitotronic 300, type GW2B / pos. qQGroup Code Function"General" "00:8" Two heating circuits with mixer M2 (heating circuit 2) and M3 (heating

circuit 3) with DHW heating"General" "9A:2" External "mixer open" heating circuit with mixer M2 (heating circuit 2)"Boiler" "02:1"

or "02:2"

Two-stage burner (delivered condition)

Modulating burnerService address Vitotronic 200-H, type HK1B / pos. uR"General" "81:3" Control unit receives the time"General" "97:1" Control unit receives outside temperature

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

System examples VIESMANN 205

5822

471

GB

7

Page 203: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Hydraulic installation scheme ID: 4605109_1404_06

KW

WW

--11/5A--

-11/2M3-

-11/20M3-

-11/52M3-

--21

----

52M

3--

--20

M3-

---

52M

2--

--5A

--

--2M

2--

--2M

3--

--11

/1--

--11/21--

--2/

X5.

2;N

---7/PT2-

-7/PT4

--1-

-

--LO

N--

--2/

X5.

1;N

----

2/X

5.5;

6--

--11/2M2--

--11/52M2--

----------

--40

--

--14

5--

--3/

2--

-20M

1--5

2M1-

-74/

3/2-

-74/20M1-

-74/

52M

1-

--11/28--

--40

--

--17

A--

--28

--

--11

/17A

--

--LO

N--

GW2B

HK1B

CHP unit

--CAN

----X

5.5;

6--

--400

V--

--24V

----X

5.1;

N--

--X5.

2;N

--

-7/PT1-

-7/PT3-

--C

AN

----

PT1

----

PT2

----

PT3

----

PT4

--

--24

V--

SFR 3000

20

21

9

13

15

6

10

11

161

2 7

50

56

55

54

53

6

3

5

5112

1422

63

62

61

60 70

71

72

73

74

52

Note: This scheme is a general example without shut-off valves or safety equipment. This does not replace the need for on-site engineering.

Equipment required

ID: 4605109_1404_06Pos. Title Part no.1 CHP unit Vitobloc 200, type EM-6/13 / EM-9/15 / EM-20/39 See Viessmann pricelist2 CHP control unit Standard delivery pos. 13 Flexible connection Standard delivery pos. 15 Variable speed pump with 0 to 10 V switching module for heating the heating water buffer cylinder On site6 Expansion vessel See Vitoset pricelist7 Cylinder level controller SFR 3000 7511 6888 Power supply On siteqZ Gas meter On site

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

206 VIESMANN System examples

7

5822

471

GB

Page 204: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

ID: 4605109_1404_06Pos. Title Part no.qP Boiler Vitoplex / Vitorond See Viessmann pricelistqQ Boiler control unit Vitotronic 300, type GW2B Standard delivery pos. 10qW 3-way mixing valve/mixer (switched by pos. 11) See Viessmann pricelistqE Outside temperature sensor ATS Standard delivery pos. 11qR Flow temperature sensor

– Contact temperature sensoror

– Immersion temperature sensorSensor well 100 mm / 150 mm long

7426 463

7438 7027816 035 / 7817 326

qT Therm-Control temperature sensor Standard delivery pos. 10wP DHW cylinder See Viessmann pricelistwQ Cylinder temperature sensor STS Standard delivery pos. 11wW Circulation pump for cylinder heating UPSB See Viessmann pricelist9 DHW circulation pump ZP See Vitoset pricelisttP Heating water buffer cylinder On sitetQ Check valve On sitetW Circulation pump for buffer discharge On sitetE Top buffer temperature sensor PTSO Standard delivery pos. 7tR Buffer temperature sensor PTS Standard delivery pos. 7tT Buffer temperature sensor PTS Standard delivery pos. 7tZ Bottom buffer temperature sensor PTSU Standard delivery pos. 7zP Heating circuit I zW Heating circuit pump M3 (heating circuit I) On site Extension kit for one heating circuit with mixer comprising: 7441 998zQ – Flow temperature sensor M3 (heating circuit I)

and

zE – Mixer motor M3 (heating circuit I)or

zQ – Contact temperature sensoror

7426 463

– Immersion temperature sensorSensor well 100 mm / 150 mm long

and

7438 7027816 035 / 7817 326

zE Mixer motor M3 for flanged mixer and plug See Viessmann pricelistuP Heating circuit II (option) uW Heating circuit pump M1 (heating circuit III) On site Extension kit for one heating circuit with mixer comprising 7141 998uQ Flow temperature sensor M1 (heating circuit III)

and

uE Mixer motor M1 (heating circuit III) uQ or – Contact temperature sensor

or7426 463

– Immersion temperature sensorSensor well 100 mm / 150 mm long(see pricelist for further heating circuit control units)

7438 7027816 035 / 7817 326

and uE Mixer motor for flanged mixer M1 (heating circuit III) See Viessmann pricelistuR Vitotronic 200-H, type HK1B

andZ009 462

LON communication module for pos. 74and

7172 173

LON cable 7143 495zO Outside temperature sensor ATS (ATS value can be accepted by the Vitotronic 300, type GW2B) Standard delivery pos. 74 Boiler accessoriesuO Plug-in adaptor for external safety equipment 7164 404iP Minimum pressure switch or limiter SDB 7438 030iQ Maximum pressure limiter SDB 7438 025iW Water level limiter (low water indicator) WB 9529 050iR Flue gas temperature sensor AGS 7452 531iT Boiler water temperature sensor KTS Standard delivery pos. 11

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

System examples VIESMANN 207

5822

471

GB

7

Page 205: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

ID: 4605109_1404_06Pos. Title Part no. System accessories qI KM BUS distributor, for when there are several KM BUS subscribers

– EA1 extension– Vitotrol 200A, 300A– Vitocom 100 GSM2– Wireless base station

7415 028

qO LON communication module for communication with the following:- Vitotronic 200-H- Vitocom 200 / 300

7172 173See Viessmann pricelistSee Viessmann pricelist

wZ Contactor relay 7814 681uT EA1 extension 7452 091uZ 1 switching output (floating changeover contact)

- Switching a feed pump to a substation- Signalling reduced mode for one heating circuit

uI 3 digital inputs- External changeover of operating state for heating circuits 1 to 3, may be switched individually - External blocking with central fault message facility- Fault messages- Brief operation of the DHW circulation pump

iE Central fault message system S On siteiZ Vitotrol 200A

Vitotrol 300AZ008 341Z008 342

Alternative to hardwired Vitotrol 200A and 300A remote control q-E Wireless base station Z011 413q-P Vitotrol 200 RF Z011 219q-Q Vitotrol 300 RF with table-top dock Z011 410q-W Vitotrol 300 RF with wall mounting bracket Z011 412q-R Wireless outside temperature sensor 7455 213q-T Wireless repeater 7456 538iU Radio clock receiver 7450 563iOq-Zq-I

Vitocom 100, type GSM2Vitocom 200, type LAN2 with communication moduleVitocom 300, type LAN3 with LON communication module

Z011 396 / Z011 388Z011 390Z011 399

For the power supply 8(oQ to oR only for mains substitution mode)

On site

rP ON/OFF switch On siteoP Mains feed connection 400 V oQ Actual mains voltage 400 V/2 A from the mains isolator oW Feedback, mains isolator is "ON" oE Feedback, mains isolator is "OFF" oR Switching mains isolator "ON/OFF" For the CHP control unit 2 oT Message: "Module ready" (floating contact) oZ Message: "Module operating" (floating contact) oU Message "Warning" (floating contact) oI Message "Service due" (floating contact) oO Message: "Central fault" (floating contact) qXP External "emergency stop pushbutton" qYP External set value signal for modulating operation 0 - 20 mA/ 50 - 100 % output qYQ External selection "heating mode" 100 % output qYW External selection "power mode" 50 - 100 % modulating operation qYE High limit safety cut-out, flue gas, for plastic systems qYR External fault input "external fault 2" (for free allocation) qYT External fault input "external fault 3" (for free allocation) qYZ External fault input "external fault 4" (for free allocation) qYU External demand heat generator qYI Power supply 24 VDC for optional return control valve qYO 0 - 10 V signal for optional return control valve or set value signal for variable speed heating circuit

pump

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

208 VIESMANN System examples

7

5822

471

GB

Page 206: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Electrical installation scheme CHP module

L3

L1

N

L2X1400V

9

7

N

8X1400V

14

12

15

13X124 V DC

78

X5zero volt

1011

X124 V DC

1617

X1

3132

X1

3536

X1

CHP unit

3940

X1

4142

X1

4344

X1

4546

X1

2N

X5230V

1N

X5230V

34

X5

56

X50 - 10V

PT3

PT4

PT2

PT1

1314

25 K5

25 K6

25 K7

25 K8

1314

1314

1314

M1~

SFR 3000

CAN

PTSO

PTS

PTS

PLP

M1~ PELP

PTSU

1314

26 K7

LON

24 V DC

/

ST44

4

CLCH0V24V

16151413

1211

1425 K10

CAN

2 8

90

91

92

93

94

52

5

95

96

97

98

99

7

53

54

55

56

110

111

112

113

114

115

116

118

119

117

120

106 108

ID: 4605109_1404_06

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

System examples VIESMANN 209

5822

471

GB

7

Page 207: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Electrical installation scheme, boiler and heating circuit control

ZP

230

V/ 5

0 H

z

11

9

151

90

41

150

156

156

40

50

29

20 A1

52 A1

21

28

UPSB 22

LP A3

794

4

4

SDB

SDB

WB145

11

780

81

82145

40

90

41

7

S 83

26

11

11

230 V/ 50 Hz

40

143

LP A1

N

L

GW2B

K1

L

N

L

N

L

N

L

N

N

L

N

L

NM1~

L

N

M1~

1

32

P

P

ID: 4605109_1404_06

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

210 VIESMANN System examples

7

5822

471

GB

Page 208: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Low

vol

tage

STS

1

146

143

15 12

145

145

LON

349

T1

3/2 12

KTS

5B

5A

17B

17A

ATS

1234

LP A2

AGS

145

145

145

145

KM BUS distributor

40

40A

157

0-10V

145

34

DE3

DE2

DE1

EA1

230

V/5

0 H

z

HKP3

M2

LP A1

M3

12 VTS3

12 VTS2

20

52

52

20

2

2 M3

M2

M3

M2

M3

M2

LON

230 V/50 Hz

40156 LP A3

GW2B

K1

KM BUS

/ /

/ /

1

32

1

32

1

32

1234

1234

1

32

1

32

L

N

S

12

12

12

L

N

N

M1~

M1~

NM1~

L

N

N

L

N

L

1

32

12

11

26

84

15

21

85

87

13

79

19 74

14

61

62

12

63

11

4075

76

78

78

78

18

86 89 103

106 108

ID: 4605109_1404_06

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

System examples VIESMANN 211

5822

471

GB

7

Page 209: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

230

V/5

0 H

z

156

40

50

29

20 M1

52 M1

21

28

LP A3

M1M1~

S

LP A2

Low

vol

tage

M1

1

146

143

145

145

LON

3/2 12

5B

5A

17B

17A 1234

M1

LON

230 V/50 Hz

ATS

HK1B

/

/ / /

L

N

L

N

L

N

L

N

N

L

N

L

N

1

32

1

32

1

32

1234

1234

M1~

N

L

74

40

83

72

73

71

69

86

11 19

103

106 108

ID: 4605109_1404_06

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

212 VIESMANN System examples

7

5822

471

GB

Page 210: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

7.5 Vitobloc 200 from type EM-50/81 (CHP unit utilising internal condensing technology)with two heating circuits with mixer, heating water buffer cylinder, condensing boiler andDHW heating

ID: 4605110_1404_06

ApplicationsThe CHP unit and lag boiler must be matched to the entire system.See CHP unit technical guides.■ For the base load: CHP unit Vitobloc 200, type EM-50/81■ For the peak load: Vitocrossal 200/300 condensing boiler

Main components■ Vitobloc 200 from type EM-50/81■ Vitocrossal 200/300■ Vitotronic 300, type GW2B■ Vitotronic 200-H (option)■ Variable speed pump (CHP) for heating the heating water buffer cyl-

inder■ Heating water buffer cylinder (recommendation: see technical guide)■ Cylinder level control (CHP) for the heating water buffer cylinder■ DHW cylinder

Function descriptionCHP unit 1 channels its entire flow rate via heating water buffer cyl-inder tP. The constant return temperature of CHP unit 1 is regulatedvia 3-way mixing valve qI. Pump 5 (230 V) is activated by the controlunit of CHP unit 1. The flow rate through pump 5 must be deter-mined in accordance with the technical description of the module type.Heating water buffer cylinder tP is integrated between the systemreturn and boiler return connector "KR2".CHP unit 1 is started and stopped via cylinder level controller SFR7. If the actual temperature falls below the selected temperature attemperature sensor T1 tE (recommendation 70 °C),CHP unit 1 isstarted. If the selected temperature at temperature sensor T2 tR (rec-ommendation 68 °C) is exceeded,CHP unit 1 is stopped.

Heating up the heating water buffer cylinder and heating modeIf the actual temperatures fall below the selected temperatures at bothtemperature sensors T1 tE and T2 tR in heating water buffer cylindertP, then CHP unit 1 is started via cylinder level controller SFR 7.CHP unit 1 heats up heating water buffer cylinder tP until the tem-perature at temperature sensors T1 tE and T2 tR in heating waterbuffer cylinder tP is above the selected set temperatures.Heating water buffer cylinder pump tW is started when the selectedtemperature at temperature sensor T1 tE is exceeded and stops whenthe temperature falls below the selected temperature at temperaturesensor T1 tE.Heating water buffer cylinder pump tW is sized on site and the headmust be ≥ the maximum head of pump 5.If the temperature at flow temperature sensor qR falls below the selec-ted set temperature, the flow rate through boiler qP will be admixedvia 3-way mixing valve qW.

DHW heating by the boilerDHW cylinder wP is heated via boiler qP and is regulated via boilercontrol unit qQ. If the actual temperature falls below the set DHW tem-perature selected at boiler control unit qQ, 3-way mixing valve qW fullychanges its throughput over from the boiler towards DHW cylinderwP, and circulation pump for cylinder heating UPSB wW supplies DHWcylinder wP.

Note: The switching times and heating curve from mixer circuit M2must be matched to heating circuit M3 and to the heating circuits ofthe Vitotronic 200-H.The flow resistance via the buffer cylinder must be higher than that viathe boiler.

NoteThis scheme is a general system example. Refer to the relevanttechnical guides when designing for specific applications.

Required codes

ID: 4605110_1404_06Service address Vitotronic 300, type GW2B / pos. qQGroup Code Function"General" "00:8" Two heating circuits with mixer M2 (heating circuit 2) and M3 (heating

circuit 3) with DHW heating"General" "9A:2" External "mixer open" heating circuit with mixer M2 (heating circuit 2)"Boiler" "02:1"

or "02:2"

Two-stage burner (delivered condition)

Modulating burner"Boiler" "0d:0" Without Therm-ControlService address Vitotronic 200-H, type HK1B / pos. uR"General" "81:3" Control unit receives the time"General" "97:1" Control unit receives outside temperature

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

System examples VIESMANN 213

5822

471

GB

7

Page 211: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Hydraulic installation scheme ID: 4605110_1404_06

KW

WW

--11/5A--

-11/2M3-

-11/20M3-

-11/52M3-

--X

7/3-

-

--X

1/40

----

X5/

19--

--X

7/5-

-

--21

----

52M

3--

--20

M3-

---

52M

2--

--5A

--

--2M

2--

--2M

3--

--11

/1--

--11/21--

--7/

X7/

5--

-7/X7/1-

-7/X7/3-

--1-

-

--LO

N--

--X

5/22

--

--X

7/1-

-

--X

5/19

----

X5/

16-1

8--

--X

5/21

----

X5/

22--

--2/

X5/

21--

--40

0V--

--24

V--

--X

1/40

----

X1/

44--

--40

0V--

--11/2M2--

--11/52M2--

---

---

--23

0V--

--14

5--

--2-

--2

0M1-

-52M

1-

-74/

2-

-74/20M1-

-74/

52M

1-

--11/28--

--40

--

--28

--

--LO

N--

HK1B

GW2B BHKW SFR

--2/X5/16-18--

-2/X1/44-

18

54

53

504

16

6

3

5

51

52

1

7211

10

6

13

12

21

9

20

1422

63

62

61

60 70

71

72

73

74

Note: This scheme is a general example without shut-off valves or safety equipment. This does not replace the need for on-site engineering.

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

214 VIESMANN System examples

7

5822

471

GB

Page 212: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Equipment required

ID: 4605110_1404_06Pos. Title Part no.1 CHP unit Vitobloc 200, type EM-50/81 See Viessmann pricelist2 CHP control unit Standard delivery pos. 13 Flexible connection Standard delivery pos. 14 Auxiliary temperature sensor Standard delivery pos. 15 Variable speed pump with 0 to 10 V switching module for heating the heating water buffer cylinder On site6 Expansion vessel See Vitoset pricelist 7 Cylinder level controller SFR 3000 7424 5558 Power supply On siteqZ Gas meter On siteqI 3-way mixing valve/mixer See Viessmann pricelistqP Vitocrossal 200/300 boiler See Viessmann pricelistqQ Boiler control unit Vitotronic 300, type GW2B Standard delivery pos. 10qW 3-way mixing valve/mixer See Viessmann pricelistqE Outside temperature sensor ATS See Viessmann pricelistqR Flow temperature sensor

– Contact temperature sensoror

– Immersion temperature sensorSensor well 100 mm / 150 mm long

7426 463

7438 7027816 035 / 7817 326

wP DHW cylinder See Viessmann pricelistwQ Cylinder temperature sensor STS Standard delivery pos. 11wW Circulation pump for cylinder heating UPSB See Viessmann pricelist9 DHW circulation pump ZP See Vitoset pricelisttP Heating water buffer cylinder On sitetQ Check valve On sitetW Heating water buffer cylinder pump On sitetE Temperature sensor T1 (top) Standard delivery pos. 7tR Temperature sensor T2 (bottom) Standard delivery pos. 7zP Heating circuit I zW Heating circuit pump M3 (heating circuit I) On sitezQ Extension kit for one heating circuit with mixer comprising: 7441 998

– Flow temperature sensor M3 (heating circuit I)and

zE – Mixer motor M3 (heating circuit I)or

zQ – Contact temperature sensoror

7426 463

– Immersion temperature sensorSensor well 100 mm / 150 mm long

and

7438 7027816 035 / 7817 326

zE Mixer motor M3 for flanged mixer and plug See Viessmann pricelistuP Heating circuit II (option)uW Heating circuit pump M1 (heating circuit III) On site Extension kit for one heating circuit with mixer comprising 7141 998uQ Flow temperature sensor M1 (heating circuit III)

and

uE Mixer motor M1 (heating circuit III) uQ or – Contact temperature sensor

or7426 463

– Immersion temperature sensorSensor well 100 mm / 150 mm long(see pricelist for further heating circuit control units)

7438 7027816 035 / 7817 326

and uE Mixer motor for flanged mixer M1 (heating circuit III) See Viessmann pricelistuR Vitotronic 200-H, type HK1B

andZ009 462

LON communication module for pos. 74and

7172 173

LON cable 7143 495zO Outside temperature sensor ATS (ATS value can be accepted by the Vitotronic 300, type GW2B) Standard delivery pos. 74

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

System examples VIESMANN 215

5822

471

GB

7

Page 213: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

ID: 4605110_1404_06Pos. Title Part no. Boiler accessoriesuO Plug-in adaptor for external safety equipment 7164 404iP Minimum pressure switch or limiter SDB 7438 030iQ Maximum pressure limiter SDB 7438 025iW Water level limiter (low water indicator) WB 9529 050iR Flue gas temperature sensor AGS 7452 531iT Boiler water temperature sensor KTS Standard delivery pos. 11 System accessories qI KM BUS distributor, for when there are several KM BUS subscribers

– EA1 extension– Vitotrol 200A, 300A– Vitocom 100 GSM2– Wireless base station

7415 028

qO LON communication module for communication with the following:- Vitotronic 200-H- Vitocom 200 / 300- Vitogate / EIB

7172 173See Viessmann pricelistSee Viessmann pricelistSee Viessmann pricelist

wZ Contactor relay 7814 681uT EA1 extension 7452 091uZ 1 switching output (floating changeover contact)

- Switching a feed pump to a substation- Signalling reduced mode for one heating circuit

uI 3 digital inputs- External changeover of operating state for heating circuits 1 to 3, may be switched individually - External blocking with central fault message facility- Fault messages- Brief operation of the DHW circulation pump

iE Central fault message system S On siteiZ Vitotrol 200A

Vitotrol 300AZ008 341Z008 342

Alternative to hardwired Vitotrol 200A and 300A remote control q-E Wireless base station Z011 413q-P Vitotrol 200 RF Z011 219q-Q Vitotrol 300 RF with table-top dock Z011 410q-W Vitotrol 300 RF with wall mounting bracket Z011 412q-R Wireless outside temperature sensor 7455 213q-T Wireless repeater 7456 538iU Radio clock receiver 7450 563iOq-Zq-I

Vitocom 100, type GSM2Vitocom 200, type LAN2 with communication moduleVitocom 300, type LAN3 with LON communication module

Z011 396 / Z011 388Z011 390Z011 399

For the power supply 8(oQ to oR only for mains substitution mode)

On site

rP ON/OFF switch On siteoP Mains feed connection 400 V oQ Actual mains voltage 400 V/2 A from the mains isolator oW Feedback, mains isolator is "ON" oE Feedback, mains isolator is "OFF" oR Switching mains isolator "ON/OFF" For the CHP control unit 2 oT External emergency stop oZ Message: "Ready" oU Message: "Operation" oI Message: "Fault" oO Databus DK3964R

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

216 VIESMANN System examples

7

5822

471

GB

Page 214: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Electrical installation scheme CHP module

L3

L1

N

L2X1400 V

9

7

N

8X1400 V

14

12

15

13X124V DC

78

X5zero volt

1011

X124V DC

12

X5zero volt

34

X5zero volt

56

X5zero volt

RS232

1920

X524V DC

22N

X5230 V

4041

X124V DC

4445

X1PT100

21

N

X5230 V

1617

X524V AC

180-10V

8

90

91

92

93

94

95

96

97

98

99

192022N

4041

X5

X5

X1

12

X7

34

X7

N

5

53

54

52

5

4

X7

18

2

7

CHP

SFR

M1~

M1~

M1~

ID: 4605110_1404_06

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

System examples VIESMANN 217

5822

471

GB

7

Page 215: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Electrical installation scheme, boiler and heating circuit control

ZP

230

V/ 5

0 H

z

11

9

151

90

41

150

156

156

40

50

29

20 A1

52 A1

21

28

UPSB 22

LP A3

794

4

4

SDB

SDB

WB145

11

780

81

82145

40

90

41

7

S 83

26

11

11

230 V/ 50 Hz

40

143

LP A1

N

L

GW2B

K1

L

N

L

N

L

N

L

N

N

L

N

L

NM1~

L

N

M1~

1

32

P

P

ID: 4605110_1404_06

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

218 VIESMANN System examples

7

5822

471

GB

Page 216: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Low

vol

tage

STS

1

146

143

15 12

145

145

LON

349

3/2 12

KTS

5B

5A

17B

17A

ATS

1234

LP A2

AGS

145

145

145

145

KM BUS distributor

40

40A

157

0-10V

145

34

DE3

DE2

DE1

EA1

230

V/5

0 H

z

HKP3

M2

LP A1

M3

12 VTS3

12 VTS2

20

52

52

20

2

2 M3

M2

M3

M2

M3

M2

LON

230 V/50 Hz

40156 LP A3

GW2B

K1

KM BUS

/ /

/ /

1

32

1

32

1

32

1234

1234

1

32

1

32

L

N

S

12

12

12

L

N

N

M1~

M1~

NM1~

L

N

N

L

N

L

1

32

12

11

26

84

21

85

87

13

79

19 74

14

61

62

12

63

11

4075

76

78

78

78

18

86 89 103

106 108

ID: 4605110_1404_06

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

System examples VIESMANN 219

5822

471

GB

7

Page 217: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

230

V/5

0 H

z

156

40

50

29

20 M1

52 M1

21

28

LP A3

M1M1~

S

LP A2

Low

vol

tage

M1

1

146

143

145

145

LON

3/2 12

5B

5A

17B

17A 1234

M1

LON

230 V/50 Hz

ATS

HK1B

/

/ / /

L

N

L

N

L

N

L

N

N

L

N

L

N

1

32

1

32

1

32

1234

1234

M1~

N

L

74

40

83

72

73

71

69

86

11 19

103

106 108

ID: 4605110_1404_06

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

220 VIESMANN System examples

7

5822

471

GB

Page 218: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

7.6 Vitobloc 200 from type EM-50/81 with two heating circuits with mixer, heating waterbuffer cylinder, boiler with shunt pump and DHW heating

ID: 4605112_1404_06

ApplicationsThe CHP unit and lag boiler must be matched to the entire system.See CHP unit technical guides.■ For the base load: CHP unit Vitobloc 200 from type EM■ For the peak load: Low temperature boiler Vitoplex / Vitorond

With shunt pump for raising the return temperature

Main components■ CHP unit Vitobloc 200, type EM-50/81■ Boiler Vitoplex / Vitorond■ Vitotronic 300, type GW2B■ Vitotronic 200-H■ Variable speed pump (CHP) for heating the heating water buffer cyl-

inder■ Heating water buffer cylinder (recommendation: see technical guide)■ Cylinder level control (CHP) for the heating water buffer cylinder■ DHW cylinder

Function descriptionCHP unit 1 channels its entire flow rate via heating water buffer cyl-inder tP. The constant return temperature of CHP unit 1 is regulatedvia 3-way mixing valve qI. Pump 5 (230 V) is activated by the controlunit of CHP unit 1. The flow rate through pump 5 is determined inaccordance with the technical description of the module type. Heatingwater buffer cylinder tP is integrated in the system return.CHP unit 1 is started and stopped via cylinder level controller SFR7. If the actual temperature falls below the selected temperature attemperature sensor T1 tE (recommendation 70 °C),CHP unit 1 isstarted. If the selected temperature at temperature sensor T2 tR (rec-ommendation 68 °C) is exceeded,CHP unit 1 is stopped.

Boiler qP is started in modulating mode for CHP unit 1 with load-dependent operation. Vitoplex or Vitorond boilers qP are protected viashunt pump qT, which starts and stops according to the temperaturecaptured by temperature sensor T2 qZ. Temperature sensor T1 qUmonitors the minimum return temperature to boiler qP and, whenrequired, uses boiler control unit qQ to influence downstream heatingcircuits zP, uP.

Heating up the heating water buffer cylinder and heating modeIf the actual temperatures fall below the selected temperatures at bothtemperature sensors T1 tE and T2 tR in heating water buffer cylindertP, then CHP unit 1 is started via cylinder level controller SFR 7.CHP unit 1 heats up heating water buffer cylinder tP until the tem-perature at temperature sensors T1 tE and T2 tR in heating waterbuffer cylinder tP is above the selected set temperature.Heating water buffer cylinder pump tW is started when the selectedtemperature at temperature sensor T1 tE is exceeded and stops whenthe temperature falls below the selected temperature at temperaturesensor T1 tE.Heating water buffer cylinder pump tW is sized on site and the headmust be ≥ the maximum head of pump 5.If the temperature at flow temperature sensor qR falls below the selec-ted set temperature, the flow rate through boiler qP will be admixedvia 3-way mixing valve qW.

DHW heating by the boilerDHW cylinder wP is heated via boiler qP and is regulated via boilercontrol unit qQ. If the actual temperature falls below the set DHW tem-perature selected at boiler control unit qQ, 3-way mixing valve qW fullychanges its throughput over from the boiler towards DHW cylinderwP, and circulation pump for cylinder heating UPSB wW supplies DHWcylinder wP.

Note: The switching times and heating curve from mixer circuit M2must be matched to heating circuit M3 and to the heating circuits ofthe Vitotronic 200-H.The flow resistance via the buffer cylinder must be higher than that viacheck valve tQ.

NoteThis scheme is a general system example. Refer to the relevanttechnical guides when designing for specific applications.

Required codes

ID: 4605112_1404_06Service address Vitotronic 300, type GW2B / pos. qQGroup Code Function"General" "00:8" Two heating circuits with mixer M2 (heating circuit 2) and M3 (heating

circuit 3) with DHW heating"General" "9A:2" External "mixer open" heating circuit with mixer M2 (heating circuit 2)"Boiler" "02:1"

or "02:2"

Two-stage burner (delivered condition)

Modulating burnerService address Vitotronic 200-H, type HK1B / pos. uR"General" "81:3" Control unit receives the time"General" "97:1" Control unit receives outside temperature

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

System examples VIESMANN 221

5822

471

GB

7

Page 219: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Hydraulic installation scheme ID: 4605112_1404_06

KW

WW

--11/5A--

-11/2M3-

-11/20M3-

-11/52M3-

--X

7/3-

-

--X

1/40

----

X5/

19--

--X

7/5-

-

--21

----

52M

3--

--20

M3-

---

52M

2--

--5A

--

--2M

2--

--2M

3--

--11

/1--

--11/21--

--7/

X7/

5--

-7/X7/1-

-7/X7/3-

-2/X1/44-

--2/X5/16-18--

--1-

-

--LO

N--

--X

5/22

--

--X

7/1-

-

--X

5/3-

---

X5/

19--

--X

5/22

----

X5/

21--

--X

5/16

--

--40

0V--

--24

V--

--X

1/40

----

X1/

44--

--40

0V--

--11/2M2--

--11/52M2--

--2/

X5/

21-----

---

--40

--

--14

5--

--2-

--2

0M1-

-52M

1-

-74/

2-

-74/20M1-

-74/

52M

1-

--11

/29-

-

--11/28-- -11/17B-

-11/17A-

--40

----

29--

--28

----

17A

----

17B

--

--LO

N--

HK1B

GW2B BHKW SFR

20

21

9

12

1422

51

16

1715

13

6

10

11 2

1 29

6

3

5

1852

53

54

50

7

4

63

62

61

60 70

71

73

74

Note: This scheme is a general example without shut-off valves or safety equipment. This does not replace the need for on-site engineering.

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

222 VIESMANN System examples

7

5822

471

GB

Page 220: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Equipment required

ID: 4605112_1404_06Pos. Title Part no.1 CHP unit Vitobloc 200, type EM-50/81 See Viessmann pricelist2 CHP control unit Standard delivery pos. 13 Flexible connection Standard delivery pos. 14 Auxiliary temperature sensor Standard delivery pos. 15 Variable speed pump for heating the heating water buffer cylinder On site6 Expansion vessel See Vitoset pricelist7 Cylinder level controller SFR 3000 7424 5558 Power supply On siteqI 3-way mixing valve/mixer See Viessmann pricelistwO Gas meter On siteqP Boiler Vitoplex / Vitorond See Viessmann pricelistqQ Boiler control unit Vitotronic 300, type GW2B Standard delivery pos. 10qW 3-way mixing valve/mixer See Viessmann pricelistqE Outside temperature sensor ATS Standard delivery pos. 11qR Flow temperature sensor – Contact temperature sensor

or– Immersion temperature sensor

With sensor well G 1/2” x 100 mmWith sensor well G 1/2” x 150 mm

7426 463

7438 7027816 0357817 326

qT Shunt pump BP On siteqZ Temperature sensor T2

– Contact temperature sensoror

– Immersion temperature sensor

7426 463

7438 702qU Temperature sensor T1

– Contact temperature sensoror

– Immersion temperature sensorWith sensor well G 1/2” x 100 mmWith sensor well G 1/2” x 150 mm

7426 463

7438 7027816 0357817 326

wP DHW cylinder See Viessmann pricelistwQ Cylinder temperature sensor STS Standard delivery pos. 11wW Circulation pump for cylinder heating UPSB See Viessmann pricelist9 DHW circulation pump ZP See Vitoset pricelisttP Heating water buffer cylinder On sitetQ Check valve On sitetW Heating water buffer cylinder pump On sitetE Temperature sensor T1 (top) Standard delivery pos. 7tR Temperature sensor T2 (bottom) Standard delivery pos. 7zP Heating circuit I zW Heating circuit pump M3 (heating circuit I) On sitezQ Extension kit for one heating circuit with mixer comprising: 7441 998

– Flow temperature sensor M3 (heating circuit I)and

zE – Mixer motor M3 (heating circuit I)or

zQ – Contact temperature sensoror

7426 463

– Immersion temperature sensorand

7438 702

zE Mixer motor M3 for flanged mixer and plug See Viessmann pricelist

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

System examples VIESMANN 223

5822

471

GB

7

Page 221: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

ID: 4605112_1404_06Pos. Title Part no.uP Heating circuit II (option)uW Heating circuit pump M1 (heating circuit III) On site Extension kit for one heating circuit with mixer comprising 7141 998uQ Flow temperature sensor M1 (heating circuit III)

and

uE Mixer motor M1 (heating circuit III) uQ or – Contact temperature sensor

or7426 463

– Immersion temperature sensorSensor well 100 mm / 150 mm long

7438 7027816 035 / 7817 326

and uE Mixer motor for flanged mixer M1 (heating circuit III) See Viessmann pricelistuR Vitotronic 200-H, type HK1B

andZ009 462

LON communication module for pos. 74and

7172 173

LON cable 7143 495zO Outside temperature sensor ATS (ATS value can be accepted by the Vitotronic 300, type GW2B) Standard delivery pos. 74 Boiler accessories uO Plug-in adaptor for external safety equipment 7164 404iP Minimum pressure switch or limiter SDB 7438 030iQ Maximum pressure limiter SDB 7438 025iW Water level limiter (low water indicator) WB 9529 050iR Flue gas temperature sensor AGS 7452 531iT Boiler water temperature sensor KTS Standard delivery pos. 11 System accessories qO LON communication module for communication with the following:

- Vitotronic 200-H- Vitocom 200 / 300

7172 173See Viessmann pricelistSee Viessmann pricelist

wE KM BUS distributor, for when there are several KM BUS subscribers– EA1 extension– Vitotrol 200A, 300A– Vitocom 100, type GSM2– Wireless base station

7415 028

wZ Contactor relay 7814 681uT EA1 extension 7452 091uZ 1 switching output (floating changeover contact)

- Switching a feed pump to a substation- Signalling reduced mode for one heating circuit

uI 3 digital inputs- External changeover of operating state for heating circuits 1 to 3, may be switched individually - External blocking with central fault message facility- Fault messages- Brief operation of the DHW circulation pump

iE Central fault message system S On siteiZ Vitotrol 200A

Vitotrol 300AZ008 341Z008 342

Alternative to hardwired Vitotrol 200A and 300A remote control q-E Wireless base station Z011 413q-P Vitotrol 200 RF Z011 219q-Q Vitotrol 300 RF with table-top dock Z011 410q-W Vitotrol 300 RF with wall mounting bracket Z011 412q-R Wireless outside temperature sensor 7455 213q-T Wireless repeater 7456 538iU Radio clock receiver 7450 563iOq-Zq-I

Vitocom 100, type GSM2Vitocom 200, type LAN2 with communication moduleVitocom 300, type LAN3 with LON communication module

Z011 396 / Z011 388Z011 390Z011 399

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

224 VIESMANN System examples

7

5822

471

GB

Page 222: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

ID: 4605112_1404_06Pos. Title Part no.

For the power supply 8(oQ to oR only for mains substitution mode)

On site

rP ON/OFF switch On siteoP Mains feed connection 400 V oQ Actual mains voltage 400 V/2 A from the mains isolator oW Feedback, mains isolator is "ON" oE Feedback, mains isolator is "OFF" oR Switching mains isolator "ON/OFF" For the CHP control unit 2 oT External emergency stop oZ Message: "Ready" oU Message: "Operation" oI Message: "Fault" oO Databus DK3964R

Electrical installation scheme CHP module

L3

L1

N

L2X1400 V

9

7

N

8X1400 V

14

12

15

13X124V DC

78

X5zero volt

1011

X124V DC

12

X5zero volt

34

X5zero volt

56

X5zero volt

RS232

1920

X524V DC

22N

X5230 V

4041

X124V DC

4445

X1PT100

21

N

X5230 V

1617

X524V AC

180-10V

8

90

91

92

93

94

95

96

97

98

99

192022N

4041

X5

X5

X1

12

X7

34

X7

N

5

53

54

52

5

4

X7

18

2

7

CHP

SFR

M1~

M1~

M1~

ID: 4605112_1404_06

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

System examples VIESMANN 225

5822

471

GB

7

Page 223: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Electrical installation scheme, boiler and heating circuit control

ZP

230

V/ 5

0 H

z

11

9

151

90

41

150

156

156

40

50

29

20 A1

52 A1

21

28

UPSB 22

LP A3

794

4

4

SDB

SDB

WB145

11

780

81

82145

40

90

41

7

S 83

26

11

11

BP 15

230 V/ 50 Hz

40

143

LP A1

GW2B

K1

N

L

L

N

L

N

L

N

L

N

N

L

N

L

NM1~

L

N

M1~

1

32

P

P

M1~

ID: 4605112_1404_06

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

226 VIESMANN System examples

7

5822

471

GB

Page 224: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Low

vol

tage

STS

1

146

143

15 12

145

145

LON

349

T1

3/2 12

KTS

5B

5A

17B

17A

ATS

1234

LP A2

AGS

145

KM BUS145

145

145

KM BUS distributor

40

40A

157

0-10V

145

34

DE3

DE2

DE1

EA1

230

V/5

0 H

z

HKP3

M2

LP A1

M3

12 VTS3

12 VTS2

20

52

52

20

2

2 M3

M2

M3

M2

M3

M2

LON

T2

230 V/50 Hz

40156 LP A3

K1

GW2B

/ /

/ /

1

32

1

32

1

32

1234

1234

1

32

1

32

L

N

S

12

12

12

L

N

N

M1~

M1~

NM1~

L

N

N

L

N

L

12

1

32

11

26

84

16

17

21

85

87

13

79

74

14

61

62

12

63

11

19

75 40

76

78

78

78

86 89

23

103

106 108

ID: 4605112_1404_06

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

System examples VIESMANN 227

5822

471

GB

7

Page 225: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

230

V/5

0 H

z

156

40

50

29

20 M1

52 M1

21

28

LP A3

M1M1~

S

LP A2

Low

vol

tage

M1

1

146

143

145

145

LON

3/2 12

5B

5A

17B

17A 1234

M1

LON

230 V/50 Hz

ATS

HK1B

/

/ / /

L

N

L

N

L

N

L

N

N

L

N

L

N

1

32

1

32

1

32

1234

1234

M1~

N

L

74

40

83

72

73

71

69

86

11 19

103

106 108

ID: 4605112_1404_06

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

228 VIESMANN System examples

7

5822

471

GB

Page 226: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

7.7 Vitobloc 200 from type EM-50/81 with two heating circuits with mixer, heating waterbuffer cylinder, condensing boiler and DHW heating

ID: 4605113_1404_06

ApplicationsThe CHP unit and lag boiler must be matched to the entire system.See CHP unit technical guides.■ For the base load: CHP unit Vitobloc 200, type EM-50/81■ For the peak load: Condensing boiler Vitocrossal 300, type CR3,

CT3

Main components■ Vitobloc 200 from type EM-50/81■ Vitocrossal 300, type CR3, CT3■ Vitotronic 300, type GW2B■ Variable speed pump (CHP) for heating the heating water buffer cyl-

inder■ Heating water buffer cylinder (recommendation: see technical guide)■ Cylinder level control (CHP) for the heating water buffer cylinder■ DHW cylinder

Function descriptionCHP unit 1 channels its entire flow rate via heating water buffer cyl-inder tP. The constant return temperature of CHP unit 1 is regulatedvia 3-way mixing valve qI. Pump 5 (230 V) is activated by the controlunit of CHP unit 1. The flow rate through pump 5 must be deter-mined in accordance with the technical description of the module type.Heating water buffer cylinder tP is integrated between the systemreturn and boiler return connector "KR2".

CHP unit 1 is started and stopped via cylinder level controller SFR7. If the actual temperature falls below the selected temperature attemperature sensor T1 tE (recommendation 70 °C),CHP unit 1 isstarted. If the selected temperature at temperature sensor T2 tR (rec-ommendation 68 °C) is exceeded,CHP unit 1 is stopped.

Heating up the heating water buffer cylinder and heating modeIf the actual temperatures fall below the selected temperatures at bothtemperature sensors T1 tE and T2 tR in heating water buffer cylindertP, then CHP unit 1 is started via cylinder level controller SFR 7.CHP unit 1 heats up heating water buffer cylinder tP until the tem-perature at temperature sensors T1 tE and T2 tR in heating waterbuffer cylinder tP is above the selected set temperature.Heating water buffer cylinder pump tW is started when the selectedtemperature at temperature sensor T1 tE is exceeded and stops whenthe temperature falls below the selected temperature at temperaturesensor T1 tE.Heating water buffer cylinder pump tW heats condensing boiler qP. Assoon as the set boiler water temperature can no longer be covered byCHP unit 1, condensing boiler qP starts. This condensing boilermaintains the boiler water temperature at the set value.Heating water buffer cylinder pump tW is sized on site and the headmust be ≥ the maximum head of pump 5.

DHW heating by the boilerDHW cylinder wP is heated via boiler qP and is regulated via boilercontrol unit qQ. Circulation pump for cylinder heating UPSB wW sup-plies DHW cylinder wP.

NoteThe flow resistance via the heating water buffer cylinder must be higherthan that via check valve tQ.

NoteThis scheme is a general system example. Refer to the relevanttechnical guides when designing for specific applications.

Required codes

ID: 4605113_1404_06Group Code Function"General" "00:8" Two heating circuits with mixer M2 (heating circuit 2) and M3 (heating

circuit 3) with DHW heating"Boiler" "02:1"

or "02:2"

Two-stage burner (delivered condition)

Modulating burner"Boiler" "0d:0" Without Therm-Control

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

System examples VIESMANN 229

5822

471

GB

7

Page 227: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Hydraulic installation scheme ID: 4605113_1404_06

KW

WW

--11/5A--

-11/2M2-

-11/20M2-

-11/52M2-

-11/2M3-

-11/20M3-

-11/52M3-

--X

7/3-

-

--X

1/40

----

X5/

19--

--X

7/5-

-

--21

----

52M

2--

--20

M2-

---

52M

3--

--20

M3-

-

--5A

--

--2M

3--

--2M

2--

--11

/1--

--11/21--

--7/

X7/

5--

-7/X7/1-

-7/X7/3-

-2/X1/44-

--2/X5/16-18--

--1-

-

--LO

N--

--X

5/22

--

--X

7/1-

-

--X

5/3-

-

--X

5/19

----

X5/

22--

--X

5/21

--

--X

5/16

--

--2/

X5/

21--

--40

0V--

--24

V--

--X

1/40

--

--X

1/44

----

400V

--

---

---

--40

--

--28

--

--11/28--

GW2B BHKW SFR

20

21

9

13

10

11 2 7

450161

6 6

3

5

18

54

53

52

51

22

63

62

61

60 70

71

72

73

Note: This scheme is a general example without shut-off valves or safety equipment. This does not replace the need for on-site engineering.

Equipment required

ID: 4605113_1404_06Pos. Title Part no.1 CHP unit Vitobloc 200 from type EM-50/81 See Viessmann pricelist2 CHP control unit Standard delivery pos. 13 Flexible connection Standard delivery pos. 14 Auxiliary temperature sensor Standard delivery pos. 15 Variable speed pump for heating the heating water buffer cylinder On site6 Expansion vessel See Vitoset pricelist7 Cylinder level controller SFR 3000 7424 5558 Power supply On siteqZ Gas meter On siteqI 3-way mixing valve/mixer See Viessmann pricelistqP Boiler Vitocrossal 300, type CR3/CT3 See Viessmann pricelistqQ Boiler control unit Vitotronic 300, type GW2B Standard delivery pos. 10qE Outside temperature sensor ATS Standard delivery pos. 11

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

230 VIESMANN System examples

7

5822

471

GB

Page 228: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

ID: 4605113_1404_06Pos. Title Part no.wP DHW cylinder See Viessmann pricelistwQ Cylinder temperature sensor STS Standard delivery pos. 11wW Circulation pump for cylinder heating UPSB See Viessmann pricelist9 DHW circulation pump ZP See Vitoset pricelisttP Heating water buffer cylinder On sitetQ Check valve On sitetW Heating water buffer cylinder pump On sitetE Temperature sensor T1 (top) Standard delivery pos. 7tR Temperature sensor T2 (bottom) Standard delivery pos. 7zP Heating circuit I zW Heating circuit pump M1 (heating circuit I) On sitezQ Extension kit for one heating circuit with mixer comprising: 7441 998

– Flow temperature sensor M1 (heating circuit I)and

zE – Mixer motor M1 (heating circuit I)or

zQ – Contact temperature sensoror

7426 463

– Immersion temperature sensorSensor well 100 mm / 150 mm long

and

7438 7027816 035 / 7817 326

zE Mixer motor M1 for flanged mixer and plug See Viessmann pricelistuP Heating circuit II On siteuW Heating circuit pump M2 (heating circuit II) On siteuQ Extension kit for one heating circuit with mixer comprising: 7441 998

– Flow temperature sensor M2 (heating circuit II)and

uE – Mixer motor M2 (heating circuit II)or

uQ – Contact temperature sensoror

7426 463

– Immersion temperature sensorSensor well 100 mm / 150 mm long

and

7438 7027816 035 / 7817 326

uE Mixer motor M2 for flanged mixer and plug See Viessmann pricelist Boiler accessories uO Plug-in adaptor for external safety equipment 7164 404iP Minimum pressure switch or limiter SDB 7438 030iQ Maximum pressure limiter SDB 7438 025iW Water level limiter (low water indicator) WB 9529 050iR Flue gas temperature sensor AGS 7452 531iT Boiler water temperature sensor KTS Standard delivery pos. 11

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

System examples VIESMANN 231

5822

471

GB

7

Page 229: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

ID: 4605113_1404_06Pos. Title Part no. System accessories qO LON communication module for communication with the following:

- Vitotronic 200-H- Vitocom 200 / 300

7172 173

wE KM BUS distributor, for when there are several KM BUS subscribers– EA1 extension– Vitotrol 200A, 300A– Vitocom 100 GSM2– Wireless base station

7415 028

uT EA1 extension uZ 1 switching output (floating changeover contact)

- Switching a feed pump to a substation- Signalling reduced mode for one heating circuit

uU 1 analogue input (0 – 10 V)- Set flow temperature default

uI 3 digital inputs- External changeover of operating state for heating circuits 1 to 3, may be switched individually - External blocking with central fault message facility- Fault messages- Brief operation of the DHW circulation pump

iE Central fault message system S On siteiZ Vitotrol 200A

Vitotrol 300AZ008 341Z008 342

Alternative to hardwired Vitotrol 200A and 300A remote control q-E Wireless base station Z011 413q-P Vitotrol 200 RF Z011 219q-Q Vitotrol 300 RF with table-top dock Z011 410q-W Vitotrol 300 RF with wall mounting bracket Z011 412q-R Wireless outside temperature sensor 7455 213q-T Wireless repeater 7456 538iU Radio clock receiver 7450 563iOq-Zq-I

Vitocom 100, type GSM2Vitocom 200, type LAN2 with communication moduleVitocom 300, type LAN3 with LON communication module

Z011 396 / Z011 388Z011 390Z011 399

For the power supply 8(oQ to oR only for mains substitution mode)

On site

rP ON/OFF switch On siteoP Mains feed connection 400 V oQ Actual mains voltage 400 V/2 A from the mains isolator oW Feedback, mains isolator is "ON" oE Feedback, mains isolator is "OFF" oR Switching mains isolator "ON/OFF" For the CHP control unit 2 oT External emergency stop oZ Message: "Ready" oU Message: "Operation" oI Message: "Fault" oO Databus DK3964R

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

232 VIESMANN System examples

7

5822

471

GB

Page 230: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Electrical installation scheme CHP module

L3

L1

N

L2X1400 V

9

7

N

8X1400 V

14

12

15

13X124V DC

78

X5zero volt

1011

X124V DC

12

X5zero volt

34

X5zero volt

56

X5zero volt

RS232

1920

X524V DC

22N

X5230 V

4041

X124V DC

4445

X1PT100

21

N

X5230 V

1617

X524V AC

180-10V

8

90

91

92

93

94

95

96

97

98

99

192022N

4041

X5

X5

X1

12

X7

34

X7

N

5

53

54

52

5

4

X7

18

2

7

CHP

SFR

M1~

M1~

M1~

ID: 4605113_1404_06

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

System examples VIESMANN 233

5822

471

GB

7

Page 231: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Electrical installation scheme, boiler control

ZP

230

V/ 5

0 H

z

11

9

151

90

41

150

156

156

40

50

29

20 A1

52 A1

21

28

UPSB 22

LP A3

794

4

4

SDB

SDB

WB145

11

780

81

82145

90

41

7

S 83

11

40

230 V/ 50 Hz

40LP A1

GW2B

N

L

L

N

L

N

L

N

L

N

N

L

N

L

NM1~

L

N

M1~

1

32

P

P

ID: 4605113_1404_06

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

234 VIESMANN System examples

7

5822

471

GB

Page 232: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Low

vol

tage

STS

1

146

143

15 12

145

145

LON

349

3/2 12

KTS

5B

5A

17B

17A

ATS

1234

LP A2

AGS

145

145

145

145

KM BUS distributor

40

40A

157

0-10V

145

34

DE3

DE2

DE1

EA1

230

V/5

0 H

z

HKP3

M2

LP A1

M3

12 VTS3

12 VTS2

20

52

52

20

2

2 M3

M2

M3

M2

M3

M2

HKP2

230 V/50 Hz

40156 LP A3

KM BUS

GW2B

2/

/ /

1

32

1

32

1

32

1234

1234

1

32

1

32

L

N

S

12

12

12

L

N

N

M1~

M1~

NM1~

L

N

M1~

N

L

N

L

1

32

12

11

84

21

85

87

13

79

19

61

71

62

72

63

73

11

23

75 40

76

77

78

78

78

86 89 103

106 108

ID: 4605113_1404_06

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

System examples VIESMANN 235

5822

471

GB

7

Page 233: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

7.8 Vitobloc 200 from type EM-50/81 with two heating circuits with mixer, heating waterbuffer cylinder, multi boiler system (low temperature boiler, condensing boiler) and DHWheating

ID: 4605115_1404_08

ApplicationsHeating system with CHP module and multi boiler system with twoheating circuits with 3-way mixer, heating water buffer cylinder andDHW heating.■ For the base load: CHP unit Vitobloc 200, type EM-50/81■ For the peak load: Boiler (low temperature boiler, condensing boiler)

Main components■ Vitobloc 200 from type EM-50/81■ Low temperature boiler Vitoplex / Vitorond■ Vitocrossal 200/300 condensing boiler■ Vitotronic 100, type GC1B, for each boiler in a multi boiler system

and for the CHP module■ Vitotronic 300-K, type MW1B as higher ranking control unit for the

multi boiler system■ Pump for heating the heating water buffer cylinder■ Heating water buffer cylinder (recommendation: see technical guide)■ Cylinder level control (CHP) for the heating water buffer cylinder■ DHW cylinder

Function descriptionCHP unit 1 channels its entire flow rate via heating water buffer cyl-inder tP. 3-way mixing valve 5 regulates the constant return tem-perature of CHP unit 1. Pump 7 (230 V) is activated by the controlunit of CHP unit 1. The flow rate through pump 7 must be deter-mined in accordance with the technical description of the module type.Heating water buffer cylinder tP is integrated in the system return.When hydraulically integrating CHP unit 1 into a multi boiler system,for higher ranking Vitotronic 300-K control unit rP, aside from the CHPunit, a Vitotronic 100 (type GC1B) control unit 3 will also berequired.CHP unit 1 is started and stopped via cylinder level controller SFR9. If the actual temperature falls below the selected temperature attemperature sensor T1 tE (recommendation 70 °C),CHP unit 1 isstarted. If the selected temperature at temperature sensor T2 tR (rec-ommendation 68 °C) is exceeded,CHP unit 1 is stopped.

Heating up the heating water buffer cylinder and heating modeIf the actual temperatures fall below the selected temperatures at bothtemperature sensors T1 tE and T2 tR in heating water buffer cylindertP, then CHP unit 1 is started via cylinder level controller SFR 9.CHP unit 1 heats up heating water buffer cylinder tP until the tem-perature at temperature sensors T1 tE and T2 tR in heating waterbuffer cylinder tP is above the selected set temperatures.Heating water buffer cylinder pump tW is started when the selectedtemperature at temperature sensor T1 tE is exceeded and stops whenthe temperature falls below the selected temperature at temperaturesensor T1 tE.Heating water buffer cylinder pump tW is sized on site and the pumprate must be ≥ the maximum pump rate of pump (CHP) 7.

Heating operation via multi boiler system (low temperature boiler,condensing boiler)If the temperature captured at flow temperature sensor rW falls belowthe select system flow temperature, 3-way valve qW and motorisedbutterfly valve qE channels the flow rate via Vitocrossal 200 condens-ing boiler qP.To raise the system flow temperature further, Vitoplex / Vitorond lowtemperature boiler wP is started via boiler circuit pump wW and 3-waymixing valve wE.Boilers qP and wP are started in modulating mode via Vitotronic 300-K control unit rP with load-dependent operation.

DHW heating by the boilerDHW cylinder eP is heated via boilers qP, wP and is regulated viaVitotronic 300-K control unit rP. If the temperature falls below the setDHW temperature selected at Vitotronic 300-K control unit rP, circu-lation pump for cylinder heating UPSB eW starts and supplies DHWcylinder eP.

NoteThe flow resistance of the heating water buffer cylinder must be higherthan that of check valve tQ.

NoteThis scheme is a general system example. Refer to the relevanttechnical guides when designing for specific applications.

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

236 VIESMANN System examples

7

5822

471

GB

Page 234: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Required codes

ID: 4605115_1404_08Service address Vitotronic 300-K, type MW1B / pos. rPGroup Code Function"General" "00:8" Two heating circuits with mixer M2 (heating circuit 2) and M3 (heating

circuit 3) with DHW heating"Cascade" "35:3" Number of connected heat generators"Cascade" "39:1" CHP module lead boiler"Cascade" "3A:3" Low temperature boiler wP permanent last boilerService address Vitotronic 100, type GC1B / pos. 3"Boiler" "01:2" Multi boiler system with cascade control via LON"Boiler" "0d:0" Without Therm-ControlService address Vitotronic 100, type GC1B / pos. qQ"General" "77:2" LON subscriber number"Boiler" "01:2" Multi boiler system with cascade control via LON"Boiler" "02:1"

or "02:2"

Two-stage burner (delivered condition)

Modulating burner"Boiler" "07:2" Consecutive boiler number in multi boiler systems"Boiler" "0d:0" Without Therm-ControlService address Vitotronic 100, type GC1B / pos. wQ"General" "4d:2" Boiler circuit pump (connection on plug 29)"General" "4E:1" Motor for 3-way mixing valve for return temperature control (connection

on plug 52)"General" "77:3" LON subscriber number"Boiler" "01:2" Multi boiler system with cascade control via LON"Boiler" "02:1"

or "02:2"

Two-stage burner (delivered condition)

Modulating burner"Boiler" "07:3" Consecutive boiler number in multi boiler systems"Boiler" "0C:1" Constant return temperature raising facilityPlease note: Please observe system-specific burner adjustments.

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

System examples VIESMANN 237

5822

471

GB

7

Page 235: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Hydraulic installation scheme ID: 4605115_1404_08

KW

WW

--40

/5A

--

-40/

2M2-

-40/

20M

2-

-40/

52M

2-

-40/

2M3-

-40/

20M

3-

-40/

52M

3-

--40--

--LON----29--

--X7/3--

--X1/40--

--40----LON--

--52A1--

--X5/19----X7/5--

--40--

--LON--

--LON--

--21----52M2----20M2----52M3----20M3--

--2----1--

--2M3----2M2--

--40

/1--

--21

/52A

1--

--40

/21-

---

40/2

--

-9/X

7/5-

-9/X

7/1-

-9/X

7/3-

-2/X

1/44

-

--2/

X5/

16-1

8--

--5A--

--LON--

--LON--

--X5/22--

--X7/1--

--41--

--X5/3----X5/19--

--X5/22----X5/21--

--X5/16--

--2/X5/21--

--400V--

--24V--

--X1/40----X1/44--

--400V--

---

--40

/28-

-

--40--

--28--

--21/17A----

21/2

9--

--17A--

--52A1--

--89--

--89

--

--

MW

1B

GC

1BG

C1B

K1

BH

KW

--3/2--

GC

1B

--3/3/2--

--156--

--11/52A1--

--11/156--

--12--

--13--

SFR

30

21

2010

1189

32

9

850

161

66

4

7513

12

23

22

6

31

19

24

5453

52

51

4142

32

40

63

62

61

6070

71

72

73

Note: This scheme is a general example without shut-off valves or safety equipment. This does not replace the need for on-site engineering.

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

238 VIESMANN System examples

7

5822

471

GB

Page 236: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Equipment required

ID: 4605115_1404_08Pos. Title Part no.1 CHP unit Vitobloc 200 from type EM-50/81 See Viessmann pricelist2 CHP control unit Standard delivery pos. 13 Vitotronic 100, type GC1B See Viessmann pricelist4 Flexible connection Standard delivery pos. 15 3-way mixing valve/mixer See Viessmann pricelist6 Expansion vessel See Vitoset pricelist7 Pump for heating the heating water buffer cylinder On site8 Auxiliary temperature sensor Standard delivery pos. 19 Cylinder level controller SFR 3000 7424 555qR Power supply On siteqZ Gas meter On siteqP Vitocrossal 300 condensing boiler See Viessmann pricelistqQ Boiler control unit Vitotronic 100, type GC1B Standard delivery pos. 10qW 3-way valve See Viessmann pricelistqE Motorised butterfly valve See Viessmann pricelistwP Low temperature boiler Vitoplex / Vitorond See Viessmann pricelistwQ Boiler control unit Vitotronic 100, type GC1B Standard delivery pos. 20wW Boiler circuit pump On sitewE 3-way mixing valve/mixer See Viessmann pricelistwR Return temperature sensor

– Contact temperature sensoror

– Immersion temperature sensorWith sensor well 1/2” x 100 mmWith sensor well 1/2” x 150 mm

7426 463

7438 7027816 0357817 326

eP DHW cylinder See Viessmann pricelisteQ Cylinder temperature sensor STS Standard delivery pos. 40eW Circulation pump for cylinder heating UPSB See Viessmann pricelistqO DHW circulation pump ZP See Vitoset pricelistrP Vitotronic 300-K, type MW1B Standard delivery pos. 10rQ Outside temperature sensor ATS Standard delivery pos. 40rW Flow temperature sensor Standard delivery pos. 40tP Heating water buffer cylinder On sitetQ Check valve On sitetW Heating water buffer cylinder pump On sitetE Temperature sensor T1 (top) Standard delivery pos. 9tR Temperature sensor T2 (bottom) Standard delivery pos. 9zP Heating circuit I zW Heating circuit pump M2 (heating circuit I) On sitezQ Extension kit for one heating circuit with mixer comprising: 7441 998

– Flow temperature sensor M2 (heating circuit I)and

zE – Mixer motor M2 (heating circuit I)or

zQ – Contact temperature sensoror

7426 463

– Immersion temperature sensorSensor well 100 mm / 150 mm long

and

7438 7027816 035 / 7817 326

zE Mixer motor M2 for flanged mixer and plug See Viessmann pricelistuP Heating circuit II On siteuW Heating circuit pump M3 (heating circuit II) On siteuQ Extension kit for one heating circuit with mixer comprising: 7441 998

– Flow temperature sensor M3 (heating circuit II)and

uE – Mixer PCB with mixer motor M3 (heating circuit II)or

uQ – Contact temperature sensoror

7426 463

– Immersion temperature sensorSensor well 100 mm / 150 mm long

and

7438 7027816 035 / 7817 326

uE Mixer motor M3 for flanged mixer and plug See Viessmann pricelist

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

System examples VIESMANN 239

5822

471

GB

7

Page 237: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

ID: 4605115_1404_08Pos. Title Part no. Boiler accessoriesuO Plug-in adaptor for external safety equipment 7164 404iP Minimum pressure switch or limiter SDB 7438 030iQ Maximum pressure limiter SDB 7438 025iW Water level limiter (low water indicator) WB 9529 050iR Flue gas temperature sensor AGS 7452 531iT Boiler water temperature sensor KTS Standard delivery pos.

3/11/21 System accessoriesrE KM BUS distributor, for when there are several KM BUS subscribers

– EA1 extension– Vitotrol 200A, 300A– Wireless base station

7415 028

zO LON communication module for communication with the following:- Vitotronic 200-H- Vitocom 200/300

Standard delivery pos. 40See Viessmann pricelistSee Viessmann pricelist

q-I Vitocom 300 LAN3 with LON communication module Z011 555uT EA1 extension 7452 091uZ 1 switching output (floating changeover contact)

- Switching a feed pump to a substation- Signalling reduced mode for one heating circuit

uU 1 analogue input (0 – 10 V)- Set flow temperature default

uI 3 digital inputs- External changeover of operating state for heating circuits 1 to 3, may be switched individually - External blocking with central fault message facility- Fault messages- Brief operation of the DHW circulation pump

iE Central fault message system S On siteiZ Vitotrol 200A

Vitotrol 300AZ008 341Z008 342

Alternative to hardwired Vitotrol 200A and 300A remote control q-E Wireless base station Z011 413q-P Vitotrol 200 RF Z011 219q-Q Vitotrol 300 RF with table-top dock Z011 410q-W Vitotrol 300 RF with wall mounting bracket Z011 412q-R Wireless outside temperature sensor 7455 213q-T Wireless repeater 7456 538iU Radio clock receiver 7450 563iO Contactor relay 7814 681 For the power supply qR

(oQ to oR only for mains substitution mode)On site

rT ON/OFF switch On siteoP Mains feed connection 400 V oQ Actual mains voltage 400 V/2 A from the mains isolator oW Feedback, mains isolator is "ON" oE Feedback, mains isolator is "OFF" oR Switching mains isolator "ON/OFF" For the CHP control unit 2 oT External emergency stop oZ Message: "Ready" oO Databus DK3964R

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

240 VIESMANN System examples

7

5822

471

GB

Page 238: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Electrical installation scheme CHP module

2

L3

L1

N

L2X1400 V

9

7

N

8X1400 V

14

12

15

13X124V DC

78

X5zero volt

1011

X124V DC

12

X5zero volt

34

X5zero volt

56

X5zero volt

RS232

1920

X524V DC

22N

X5230 V

4041

X124V DC

4445

X1PT100

21

N

X5230 V

1617

X524 V AC

180-10V

14

90

91

92

93

94

95

96

3

99

9

192022N

4041

X5

X5

X1

12

X7

34

X7

N

5

53

54

52

7

8

X7

5

L1B4L1S3

41

CHP

SFR

GC1B

M1~

M1~

M1~

ID: 4605115_1404_08

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

System examples VIESMANN 241

5822

471

GB

7

Page 239: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

Electrical installation scheme, boiler and heating circuit control

LP A2

1

146

143

145

145

LON

3/2 12

5B

5A

17B

17A 1234

Low

vol

tage

12 M3

1M22

2 M3

M2

LP A12

STS

VTS

ATS

Low

vol

tage

ZP

230

V/5

0 H

z

156

40

50

29

20 A1

52 A1

21

28

UPSB

LP A3

S

40

M3

M2

M3

M220

52

52

20 M3

M2

M3

M2

230

V/5

0 H

z

40 156

145

LON

230 V/50 Hz

LP A1

LP A3

MW1B MW1B

KM BUS145

145

KM BUS distributor

145

145

L

N40

40A

157

0-10V

145

12

56DE3

34DE2

DE1

EA1

34

/ / /

/

230 V/50 Hz

45

/

1

32

1

32

1

32

1234

1234

L

N

L

N

L

N

L

N

N

L

N

L

N

M1~

L

N

NM1~

NM1~

M1~

L

N

L

N

L

NM1~

1

32

1

32

1

32

L

N

S

12

12

40

4045

83

32

19

31

42

87

41

43

3

69

11 21 108

M1~

40

61

71

62

72

63

73

40

75

76

77

43

74

40

78

78

78

86 103

ID: 4605115_1404_08

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

242 VIESMANN System examples

7

5822

471

GB

Page 240: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

230

V/5

0 H

z

151

90

41

150

156

156

40

50

29

20 A1

52 A1

21

28

LP A3

4

4

4

SDB

SDB

WB145

7145

90

41

7

S

LP A2

Low

vol

tage

KTS

AGS

1

146

143

15 12

145

145

LON

3/2 12

5B

5A

17B

17A 1234

4

145

LON

M1~156 MV

RV

230 V/50 Hz

GC1B

K1

/

L

N

L

N

L

N

L

N

N

L

N

L

N

L

N

1

32

P

P

1

32

1

32

1

32

1234

1234

M1~

N

L

11

1189

45

79

80

81

82

1183

89

13

12

84

85

79

40 108

ID: 4605115_1404_08

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

System examples VIESMANN 243

5822

471

GB

7

Page 241: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

230

V/5

0 H

z

151

90

41

150

156

156

40

50

29

20 A1

52 A1

21

28

LP A3

M1~

4

4

4

SDB

SDB

WB145

7145

90

41

7

S

LP A2

Low

vol

tage

RTS

KTS

AGS

1

146

143

15 12

145

145

LON

3/2 12

5B

5A

17B

17A 1234

4

145

LON

KKP

230 V/50 Hz

GC1B

/

L

N

L

N

L

N

L

N

N

L

N

L

N

L

N

1

32

P

P

1

32

1

32

1

32

1234

1234

M1~

N

L

21

21

45

79

80

81

82

83

22

23

84

24

85

79

40 108

ID: 4605115_1404_08

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

244 VIESMANN System examples

7

5822

471

GB

Page 242: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

230

V/5

0 H

z

151

90

41

150

156

156

40

50

29

20 A1

52 A1

21

28

LP A3

4

LP A2

Low

vol

tage

1

146

143

15 12

145

145

LON

3/2 12

5B

5A

17B

17A 1234

LON

230 V/50 Hz

X5.3-5.6

KTS

GC1B

/

L

N

L

N

L

N

L

N

N

L

N

L

N

L

N

1

32

1

32

1

32

1234

1234

N

L

3

2

45

85

40 108

ID: 4605115_1404_08

Combined heat and power unit (CHP) Vitobloc 200 (cont.)

System examples VIESMANN 245

5822

471

GB

7

Page 243: Floorstanding boilers from 80 kW including functions ...edithmedia.ro/viessmann/proiectare/Exemple instatii cazane mari.pdf · Within the periods selected at control unit 2, DHW is

5822

471

5

/201

4 S

ubje

ct to

tech

nica

l mod

ifica

tions

!