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Issue 5/2014
System examples 2014 Floorstanding boilers from 80 kW including functions, hydraulics, components and electrics Combined heat and power units
A3
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
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
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
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
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2
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
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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
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
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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
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2
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
PÖ
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
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
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
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
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2
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
PÖ
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
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
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GB
2
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
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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
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2
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
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
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2
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
PÖ
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
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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
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2
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
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5822
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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
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2
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
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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
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2
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
PÖ
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
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20
A1
LN
K
1 2 ... n
sÖ
wI
wO
cl. cl. cl.
ID: 4605067_1404_07
Boiler, ≤ 20,000 kW (cont.)
System examples VIESMANN 29
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2
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
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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
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2
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
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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
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2
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
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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
PÖ
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
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2
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
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5822
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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
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
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
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
PÖ
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
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
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
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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
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
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
PÖ
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
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
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
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
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
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
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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
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2
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
PÖ
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
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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
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2
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
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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
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2
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
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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
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2
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
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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
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2
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
PÖ
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
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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
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2
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
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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
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2
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
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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
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2
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
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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
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2
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
PÖ
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
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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
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2
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
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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
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2
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
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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
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GB
2
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
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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
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GB
2
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
PÖ
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
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GB
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
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2
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
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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
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
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
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
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
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
PÖ
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
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
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
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
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
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
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
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
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
PÖ
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
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
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2
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
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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
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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
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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
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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
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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
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3
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
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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
PÖ
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
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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
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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
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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.)
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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
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3
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
PÖ
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
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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
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3
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
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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
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3
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.)
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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
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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.)
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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
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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
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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
PÖ
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
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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.)
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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
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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.)
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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
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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
PÖ
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
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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
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3
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
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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
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4
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
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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
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4
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
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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
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4
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
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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
PÖ
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
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GB
4
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
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
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4
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
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GB
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
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4
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
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471
GB
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
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
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
PÖ
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
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
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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
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4
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
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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
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4
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
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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
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4
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
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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
PÖ
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
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4
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
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GB
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
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4
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
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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
--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
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GB
4
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
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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
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4
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
PÖ
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
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
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
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
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4
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
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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
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
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4
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
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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
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
PÖ
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
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
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471
GB
4
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
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
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4
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
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GB
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
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4
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
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
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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
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4
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
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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
PÖ
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
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
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471
GB
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
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4
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
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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
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5
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
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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
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5
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
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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
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GB
5
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
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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
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5
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
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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
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GB
5
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
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GB
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
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6
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
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
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6
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
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
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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.)
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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
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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.)
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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
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7
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
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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
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7
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
PÖ
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
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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
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7
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.)
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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
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7
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
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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
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7
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
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
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
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
PÖ
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
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
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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
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
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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
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7
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
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5822
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GB
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
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GB
7
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
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
PÖ
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
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7
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
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5822
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GB
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
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7
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
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
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
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
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
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
PÖ
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
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
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
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GB
7
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
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
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
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GB
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
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
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
PÖ
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
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7
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
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
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7
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
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
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GB
7
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
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
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
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
PÖ
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
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
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
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
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
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
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
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
PÖ
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
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
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
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
5822
471
5
/201
4 S
ubje
ct to
tech
nica
l mod
ifica
tions
!