HEF2 Series - Agon · PDF fileHEF2 Series Evaporative Humidifiers for ... designed so it can be completely emptied by gravity. A pump for supplying water from the water tank to

Installation and maintenance manual

HEF2 SeriesEvaporative Humidifiers for Air Handling Units (A.H.U.)

In compliance with European Union Standards for machinery safety, it is essential to read this manual

in detail before installing units.

MH

EF2

-EN

-16-

2

HEF2 SeriesInstallation and maintenance manual

04 General description

05 Assembly of accessories delivered as parts (Recirculated Water)

06 Assembly of accessories delivered as parts (Direct Water)

07 Mechanical design, operating principles and list of components HEF2 Series (recirculated water, standard on/off)

09 Mechanical design, operating principles and list of components HEF2 Series-DW (direct water, standard on/off)

11 Mechanical design, operating principles and list of components HEF2 Series (recirculated water with stage control)

14 Mechanical design, operating principles and list of components HEF2 Series-DW (direct water, stage control)

16 Installation requirements

17 Connections, settings and regulations

18 Connections and Settings/Regulations Made (Standard - Recirculated Water)

19 Dimensional drawing HEF2 Series (Recirculated Water). Manual drain ball valve (standard)

20 Dimensional drawing HEF2 Series (Recirculated Water). Motor-zone Drain Valve (optional)

21 A Connection to the water supply for filling the water tank

22 B Connecting the drain to the water trap

23 C Electricity connection of the Fisair recirculation pump

25 D Level detector electricity connection

26 E Setting valves regulating evaporative cassette irrigation flow

26 F Adjusting the constant bleed-off regulation valve

27 Connections and settings/regulations made (Standard – Direct Water)

28 HEF2 Series-DW (Direct Water) Water supply and basin draining dimensional drawing

29 A Connection to the water supply

Contents

3

30 B Connecting the drain to the water trap

30 E Setting of the irrigation valves in each evaporative cassette

31 Connections and settings/regulations made (Optional accessories for recirculated water)

32 Connections and settings/regulations made (Optional accessories for direct water)

33 A Connection of the 24V or 230V water tank filling N.C. solenoid valve

34 B Connection of the N.C. motor-zone valve for automatic draining of the HEF2 Series (recirculated water)

40 C Flexible connector for the water supply

40 D External rigid connector for the water supply

40 E External rigid connector for draining

41 F U.V. lamp disinfection system

42 G Perimeter closure cover plates

43 H Solenoid valve(s) connection for stage control

44 J HEF2 Series-DW for duct

46 K Piping system in stainless steel

46 N Connection of the 3-way motor-zone valve to manage the water supply and the emptying of the manifold/irrigation system

46 O Motor-zone valve for emptying of the manifold/irrigation system

47 Installation and recommendations

47 Maintenance

48 Cleaning and disinfection

49 Hygiene certificate

50 LATERAL Disassembly

55 FRONT Disassembly

57 Cleaning the individual irrigation system

59 HEF2 Series List of spare parts

4HEF2 Series Installation and maintenance manual

General description

EVAPORATIVE HUMIDIFIER OPERATING PRINCIPLES

FISAIR evaporative humidifiers are units designed to increase the water vapour content of the treated air, by making use of the natural evaporation of water from its liquid phase. The air supply being treated is passed through a cellular panel dampened using an irrigation system. This panel is composed of undulating sheets of inorganic paper with stiffening and water absorbent additives.

The layout, as channels criss-crossing the panel provides a huge surface for water-air contact, which maximises water evaporation, and reduces to a minimum resistance to the movement of the air (pressure drop).

FISAIR evaporative humidifiers work in a similar way to natural processes in rivers, lakes and seas. The vapour added to the air is exclusively pure water vapour.

PROVISIONAL STORAGE

During storage, units must be kept dry and protected from the elements.

Warning: Avoid direct sunlight and sites in which temperatures can exceed 50ºC. Plastic components and derivatives could be deformed.

Thermohygrometric conditions during storage:

Temperature: [-10… 50ºC] Relative humidity: [5… 95%HR] Without condensation

HEF2 Series with recirculation

HEF2 Series with recirculation

5Fisair Air humidity control

1º

2º

½” brass fitting to be attached to the regulation

valve + bleed-off flow meter.

½” PVC-U for connecting/tightening

¾” PVC-U union for connection/tightening

1” PVC-U union for connection/tightening

Assembly of accessories delivered as parts (Recirculated Water)

1.2 Optional: A motorized zone valve is used for draining.

Note: These accessories can only be attached once the equipment is located inside the air handling unit.

1. ASSEMBLY SET (OVERFLOW + DRAINING + DRAINING VALVE)

1.1 Standard: A ball valve is used for draining.

(*) Not necesary with conductivity control.

1º

2º

1” PVC-U union for connection/tightening

¾” PVC-U union for connection/tightening

2. ASSEMBLY SET OF THE CONSTANT BLEED-OFF (*)


Assembly of accessories delivered as parts (Direct Water)

1. ASSEMBLY Emptying set:

Couple ½ / V PVC-U link onto the drain outlet towards the selected hand of the water drain.

2. ASSEMBLY Water supply solenoid valve set + rigid external connection (if applicable).

Couple ½” Stainless steel link BSP.


Mechanical design, operating principles and list of componentsHEF2 Series (recirculated water, standard on/off)

5

7

421

9C

3

10

E

B6

11

A

MECHANICAL DESIGN

The humidifier comprises the following elements:

A stainless steel self-supporting chassis-water tank structure that houses the unit.

A set of evaporative cassettes of variable sizes and thicknesses, depending on the model and stainless steel surround.

A stainless steel float valve automatic control mechanism for the water supply, to maintain the appropriate level in the water tank, so the unit works correctly. This valve can be regulated in order to set it to the available water pressure in the network.

A stainless steel water tank to hold the water, which is designed so it can be completely emptied by gravity.

A pump for supplying water from the water tank to evaporative panels (technical data on page 23).

A stainless steel mechanism integrated into the water tank acting as an overflow for the system in the event of water level control faults.

A distribution collector + regulation valves with flow meter set to supply the appropriate irrigation individually to the evaporative panels.

A diversion from the water flow to the distribution collector regulates a constant flow of water, which is eliminated from the system in order to maintain a uniform amount of mineral salts in the irrigation water, which we will refer to as the “Constant bleed-off system”. (See page 26).

DROPLET SEPARATOR

Operating conditions giving rise to droplet carry-over, can be handled by adding a second PP profile panel to the humidifiers to capture the droplets being detached from the evaporative panel.

F

8

D G

A. Process air

B. Humidified air

C. Water supply

D. Overflow

E. Constant bleed-off

F. Draining

G. Water outlet to drain (draining + overflow + constant bleed-off)

1. Evaporative cassette

2. Droplet separator cassette (optional)

3. Water recirculation pump

4. Float/ball cock

5. Constant bleed-off + flow meter control valve

6. Panel irrigation + flow meter control valve

7. Filling valve/water tank level control (float valve)

8. Water tank draining valve

9. Filling solenoid valve (optional, supplied loose)

10. Max/min water level detector

11. Cut-off valve (depending on model)

Process air


OPERATING PRINCIPLES

HEF2 SERIES (Recirculated water, standard on/off)

Water supply

Overflow

Bleed-off

WATER TANK

EVAPORATIVE CASSETTE 2

3

C

F

E

D

8

79

6 6

510

G

A Process air

B Humidified air

C Water supply

D Overflow

E Constant bleed-off

F Draining

GWater outlet to drain (draining + overflow + constant bleed-off)

1 Evaporative cassette

2 Droplet separator (optional)

3 Water recirculation pump

5 Bleed-off regulation valve + flow meter

6 Irrigation regulation valves + flow meter

7Float valve (regulation of supply water)

8 Draining ball valve (standar) (*)

9 Filling solenoid valve (optional, supplied loose)

10 Max/min water level detector

11 Cut-off valve (depending on model)


5

C8D

G

7

E

2

6

1

113

10

B

A

(*) Optionally the ball valve may be replaced by a zone motor-valve.


MECHANICAL DESIGN

The humidifier is composed of the following elements:


A set of evaporative panels of variable sizes and thicknesses, depending on the model and stainless steel surround.



DROPLET SEPARATOR


A. Process air

B. Humidified air

C. Water supply

D. Draining

F. Water outlet to drain (draining + overflow)



3. Panel irrigation control valve + flow meter

4. Water supply solenoid valve (optional, remove valves 5 and 7)

5. Water supply ball valve (standard)

6. Ball valve for manifold draining + water distribution draining (standard) (*)

7. 3-way motor valve for automatic water feeding and automatic emptying of the water manifold + water distribution (optional, remove valves 4, 5 and 6)


Mechanical design, operating principles and list of componentsHEF2 Series-DW (direct water, standard on/off)

Process air

4

6

5 7C

D1 2

BA

3


A Process air

B Humidified air

C Water supply

D Draining




4 Water supply ball valve (standard)

5Water supply solenoid valve (optional, remove valves 5 and 7)

6Ball valve for manifold draining + water distribution draining (standard) (*)

7

3-way motor valve for automatic water feeding and automatic emptying of the water manifold + water distribution (optional, remove valves 4, 5 and 6)

WATER TANK

C

D

EVAPORATIVE CASSETTE 1 EVAPORATIVE CASSETTE 2

3

75 4

3

6

OPERATING PRINCIPLE

HEF2 SERIES-DW (Direct water, standard on/off)

Codo D32

45

D

7

3

2

C

A

B

1

6



Mechanical design, operating principles and list of componentsHEF2 Series (recirculated water with stage control)

MECHANICAL DESIGN




A stainless steel float valve automatic control mechanism for the network water supply, to maintain the appropriate level in the water tank, so the unit works correctly. This valve can be regulated in order to set it to the available water pressure in the network.


A pump for supplying water from the water tank to the evaporative panels (technical data on page 23).

A stainless steel mechanism integrated into the water tank acting as an overflow for the system in the event of water level control faults.

The first stage is controlled with the pump on/off. The irrigation of cassette 1 is controlled.

The other stages are controlled by opening the solenoid valve of each stage.


A diversion from the water flow to the distribution collector regulates a constant flow of water, which is eliminated from the system in order to maintain a uniform amount of mineral salts in the irrigation water, which we will refer to as the “Constant bleed-off system”. (See page 26.)

DROPLET SEPARATOR


[Note]

Each stage can include the irrigation of more than one cassette. The configuration of stages is variable and defined by the client.

Process air


A. Process air

B. Humidified air

C. Water supply

D. Overflow

E. Constant bleed-off

F. Draining

G. Water outlet to drain (draining + overflow + constant bleed-off)



3. Water recirculation pump

4. Float/ball

5. Constant bleed-off control valve + flow meter

7. Stage 1 panel irrigation control valve + flow meter

8. Stage 2 panel irrigation control valve + flow meter

9. Stage 2 N.C. solenoid valve

11. Filling/control valve for the water basin level (float valve)

12. Water basin draining valve (**)

13. Filling solenoid valve (optional)

14. Min/max water level detector

15. Cut-off valve (depending on model)

(*) With a maximum of 5 stages for the HEF2E

with 5 cassettes

(**) Optionally the ball valve may be replaced

by a zone motor-valve

BA7

3

8

9

515

G

C

E

11

12

1413

F

D4

1 2

OPERATING PRINCIPLE FOR 2-STAGE CONTROL (*)

512D

G

11

1

8

9

2

7

C

3

14

E B

A


OPERATING PRINCIPLE

HEF2 SERIES (Recirculated water with 2 stage control)

WLD

Water supply

Overflow

Bleed-off


WATER TANK


3

C

E

8

97

5

13 11

12

G

F

D

C Water supply

D Overflow

E Constant bleed-off

F Draining

G Water outlet to drain (draining + overflow + constant bleed-off)

3 Water recirculation pump

5 Bleed-off regulation valve + flow meter

7 Irrigation regulation valve + flow meter (stage 1)

8 Irrigation regulation valve + flow meter (stage 2)

9 N.C. solenoid valve (stage 2)

11 Float valve (supply water regulation)

12 Water tank draining valve

13N.C. filling solenoid valve (optional, supplied loose)

14 Min/max water level detector


MECHANICAL DESIGN






An N.C. irrigation control solenoid valve for each stage/evaporative cassette.

DROPLET SEPARATOR


A. Process air

B. Humidified air

C. Water supply

D. Draining



3. Panel irrigation control valve + flow meter

4. Water supply solenoid valve (optional, remove valves 6 and 8)

5. Solenoid valves N.C. for each stage

6. Water supply ball valve (standard)

7. Ball valve for manifold draining + water distribution draining (standard) (*)

8. 3-way motor valve for automatic water feeding and automatic emptying of the water manifold + water distribution (optional, remove valves 4, 6 and 7)


Mechanical design, operating principles and list of componentsHEF2 Series-DW (direct water, stage control)

B

5

3

4

7

D21

6 8C

A

Process air


46

C

8

3

2

5

1

A

B

Codo D32D

7


WATER TANK

C

D

5 5

3 3

8

7

4 6

EVAPORATIVE CASSETTE 1 EVAPORATIVE CASSETTE 2

A Process air

B Humidified air

C Water supply

D Draining




4Water supply solenoid valve (optional, remove valves 6 and 8)

5 Solenoid valves N.C. for each stage

6 Water supply ball valve (standard)

7Ball valve for manifold draining + water distribution draining (standard) (*)

8

3-way motor valve for automatic water feeding and automatic emptying of the water manifold + water distribution (optional, remove valves 4, 6 and 7)


Installation requirements

GENERALITIES

In order to optimize maintenance/installation, humidifiers must be placed on a level waterproof surface, with a drain or run-off, so possible leaks can be dealt with during installation, set up, operation and maintenance.

Assembly inside an air handling unit must ensure the air being treated passes through the evaporative panels, by closing off the perimeters adequately to prevent possible by-passes of the air flow.

All humidifier components are employed downstream, or in other words, in the outlet of the humidified air, as standard.

LOCATION AND SERVICING SPACE

The normal location of the humidifier in the air handling system is after the pre-heating coil and before the cold/heating coil, if there is one. However, the position must be chosen by the project designer.

The area where the water basin is located must be equipped with a peep-hole (minimum diameter of 150 mm) and lighting must be provided to allow periodic visual inspections.

ASSEMBLY OF THE AIR HANDLING UNIT (A.H.U.)

HEF2 Series humidifiers are normally used in conjunction with the air handling unit or A.H.U., after the (pre) heating coil and before the cold and/or (post) heating coil, as shown in the diagram below.

Thermohygrometric operative conditions (*)

Temperature: [5… 40ºC] Relative Humidity: [5… 95%HR]

We recommend allowing for a 500 mm space before and after the unit for inspection and servicing.

Although the humidifying matrix is not combustible, it is advisable to not exceed process air temperatures of 50ºC, in the event that the pump does not work and there is no resulting irrigation, because the irrigation piping material could be deformed.

When the pump works, 40ºC should not be exceeded on the side of the pump.

To ensure complete drying of the cooling pad, after a work period, the air fan of the UTA must be working during the times set out in the following table:

Supply installation

Adiabatic humidification at cold times of year with the best energy efficiency of any humidifying system.

Air Velocity (V) m/s

Aprox. extra working time of the air fan with a temperature

between 20-25ºC

V<2 15 min

2≤V<3 12 min

3≤V<4 9 min

4≤V<5 6 min

(*) Airflow situated at the pump zone or water supply zone.

CONNECTIONS, SETTINGS AND REGULATION


HEF2 Series


CONNECTIONS AND SETTINGS/REGULATIONS MADE(STANDARD - RECIRCULATED WATER)

Connection to the water supply (connection to external water at between 1 and 6 bar)

Connection to drain to the water trap

Electricity connection to the recirculation pump

Electricity connection to the level detector

Setting of the irrigation valves in each evaporative cassette

Constant bleed-off valve setting

500 mm gaps recommended for maintenance

500 mm

G

500 mm

G

B

E FB A C D

A

A

B

C

D

E

F

G


HEF2 Series (RECIRCULATED WATER) Water supply and basin draining dimensional drawing

MANUAL DRAIN BALL VALVE (standard)

(*) 26,5mm for 570 < A < 2075mm 36,5mm for 2175 < A < 2975mm

(**) 150mm for 570 < A < 2075mm 160mm for 2175 < A < 2975mm

(****) 190mm for 570 < A < 2075mm 200mm for 2175 < A < 2975mm

(***) 125mm for 570 < A < 2075mm 135mm for 2175 < A < 2975mm

Water Supply 1/2”BSP-MInlet Type (1) y (3)

Water Supply (1)Inlet Type 1/2”BSP-M Left Outlet

(Right Outlet Symmetric)

120

120

120

125

146650

796

(*)

26,5

275

250

(***

) 12

5

(**)

150

(***

*) 1

90

A=

Wid

th H

EF

2 S

erie

s

Water Outlet To DrainPVC-U D32-F

Ball Valve

Overflow

Water Supply (2)Inlet Type 1/2”BSP-M


Pro

cess

air


HEF2 Series (RECIRCULATED WATER) Water supply and basin draining dimensional drawing

MOTOR-ZONE DRAIN VALVE (optional)





120

120

120

125

168650

(*)

26,5

275

(***

) 12

5

(**)

150

(***

*) 1

90

A=

Wid

th H

EF

2 S

erie

s


Motor-Zone Valve



Pro

cess

air

250

Overflow

(****) 190mm for 570 < A < 2075mm 200mm for 2175 < A < 2975mm


Left Outlet (Right Outlet Symmetric)


Connection to the water supply for filling the water tankA

WATER CONNECTIONS

Connect the water supply (A) to the ½” male BSP float valve (6) using suitable piping with a cut-off valve (1). We recommend the installation of a 0.5 mm light filter (2). The float valve can be regulated to set it to a range of water supply pressures, as shown in figure 1 on this page.

WATER TANK WATER SUPPLY

Adjust the water level of the water tank to between 3 cm below the level of the overflow by regulating the float valve.

Regulating the float valve

[Note]

The water level must never fall below the minimum water level of the pump. Water levels below this minimum irreparably harm the pump.

Figure 1

½” pitch

3/8” pitch

Float valve

Flow

(l/m

in)

1 2 5 63 40

20

40

60

80

100

120

140

Pressure (bars)

Fitted by others

A

6

2

1

Regulating by positioning the float valve vertically (25mm of play). A 20 spanner with parallel faces key is needed to carry out this operation.

[Note] 25 mm for position 2

and 40 mm for position 1 and 3 (feed water).

(*)

25m

m

110º

Regulating by swivelling the ball (110º Swing). Two 10 spanner with parallel faces key is needed to carry out this operation.

75 mm


Connecting the drain to the water trapB

DRAINING CONNECTIONS

Connect the ø32 mm common outlet (female/glued PVC-U) for the draining / overflow / constant bleed-off (3), with no cut-off valve, to the network. A cut-off valve (4) (manual or automatic depending on specifications) is included to control drainage. *

The connection of the water outlet to the drainage must include a water trap (5) high enough (2H) to exceed the pressure in the system, so the water tank can be completely emptied, for hygiene reasons. The system will also have the normal slope of typical drainage lines.

Recovering water from the humidification process into the drinking water mains is absolutely prohibited.

Draining valve opening

Draining valve closure

PVC-U ø32 mm (glued)

* HEF2 Seriess are supplied with a manual ball valve for draining as standard

2H

2H

HH

2H

Water trap for positive pressures

Water trap for negative pressure

Hmin. (mm)= P(Pa)/10 P= Total fan pressure

B

34

Fitted by others

5


Connect the electricity supply line to the terminal box of the water irrigation pump using a suitable connection (IP54 or higher).

The protection and operation of the electricity supply to the pump must be determined by the project designer of the system.

The humidifier must be disconnected automatically when the system fails to ease working conditions according to sanitary standard VDI6022. FISAIR recommends including our BASIC CONTROL PANEL (CCB)

WIRING DIAGRAM THREE PHASE PUMP

C

STAR CONNECTION

(400V/III/50Hz)

U1 V1 W1

X1

TRIANGULAR CONNECTION

(230V/III/50Hz)

U1 V1 W1

X1

Electricity connection of the Fisair recirculation pump

U1 V1 W1

426

513

PE

X0

X1

400V/3Ph/50Hz

L2

L1

L3

PE

PnPump

4

I1

_.__._

-..-A

I>

U

240W 0,4..0,63A

0,25..0,4A

60W

I(A) P(W)

0,1..0,16A

A bordo de unidad.Inside unit.

Ejecución por otros.Not included.

125W


WIRING DIAGRAM

SINGLE PHASE PUMP

0

1

SEL 1-2 5-63-4

DescripciónNombre

Seccionador para aislamiento electricoI1

X0 Caja exterior

X1 Caja de conexión bomba (IP55)

In (240W)= 0,52A (400V/III/50Hz)

In (125W)= 0,38 A (400V/III/50Hz)

In (60W)= 0,12A (400V/III/50Hz)

In (50W)= 0,48A (230V/IN/50Hz)

Power Rating

U1 V1

42

13

PE

X0

230V/1N/50Hz

N

L1

PE

PnPump

3

I1

_.__._

-..-A

I>

U

0,4..0,63A

I(A) P(W)

A bordo de unidad.Inside unit.

Ejecución por otros.Not included.

Name Description

Exterior box

Pump connection box (IP55)

Isolator for electrical insulation

50W

25FISAIR PUMP CAPACITY CURVES

Level detector electricity connectionD

1. Minimum level detector (low level):

The minimum level must be connected to protect the workings of the recirculation pump as shown in the diagram in figure 1.

2. Maximum level detector (high level):

The maximum level is used as a security system in the event of a possible failure of the float valve of the water feed. It must not be used to regulate the water feed. If it has a solenoid valve, this level must be connected to this valve to shut off for safety. The connection must be made as shown in the diagram in figure 1.

(Vmax = 110Vac)

pump

Filling solenoid valve

min. level

max. level

S2

S1

Common High level

N.O Low level

N.O High level

High level

Low level

Common Low level

N.C High level

N.C Low level

[Important note] Maximum connection 110 Vac

Figure 1


Adjust the irrigation valves of the evaporative cassettes so their surfaces are uniformly wet. The empirical value of approximately 1 litre/second for each square metre of irrigation surface is enough to exceed the water needed for evaporation. Generally, it is just necessary to ensure the irrigation of the panels has excess water falling into the water tank.

The importance of constant bleed-off based on conductivity

Water evaporates because the water vapour pressure is higher in the evaporative panel than in the air passing through it. Since only the water evaporates, dissolved mineral salts remain in solution, which gradually increases their concentration, despite new water being added to compensate for the evaporation.

In order to prevent the formation of mineral deposits on the surfaces of the evaporative panel (giving rise to a progressive increase in air pressure drop and reducing operational performance) it is essential to drain off some of the recirculated water to the network during the evaporation.

Bleed-off based on the COC (cycle of concentration).

Bleed-off = Evaporation (COC-1)

Cycle of concentration COC based on conductivity (100-1000 µS/cm)

Comment: Always in line with the recommended parameters of the drinking water supply.

• 100 µS/cm = 9 COC• 550 µS/cm = 6 COC• 1000 µS/cm = 2 COC

Calculation example:

• Based on drinking water network parameters• Water evaporation= 3.23 l/min • Water conductivity= 550 µS/cm• COC= 6• Bleed-off = 3.23/(6-1)= 0.65 l/min

Regulation valve with flow meter to adjust the bleed-off. It is regulated using a screwdriver as shown in figure 1.

Initial approximate settings can be made as 10% of the total flow of the irrigation. By regularly observing the state of the panels (on the air input side), after 1 or 2 weeks in use, if there are no white mineral deposits on the surfaces, the bleed-off flow can be reduced, or on the other hand, if there are lime deposits, it can be increased.

Analytical parameters of the drinking water network (Recommended)

• Hardness of the water ( CaCO3): 50-170 ppm • Chlorine ( Cl): <55 ppm • PH: 6-8 • Silica (SiO): <30 ppm • Iron ( Fe): <0.2 ppm • Oils and grease: <2 ppm • Total dissolved solids: <550ppm • Total alkalinity ( CaCo3): 50-170 ppm • Suspended solids: <5 ppm

Setting valves regulating evaporative cassette irrigation flow

Adjusting the constant bleed-off regulation valve

E

F

Regulating with a flat head screwdriver

where shown

Regulation valve + ½” brass flow meter

for adjusting the irrigation of each cassette

Excess irrigation water is important to ensure constant and superficial washing of the panels.

Example of irrigation x cassette:

Cassette width (500mm) and panel thickness (150mm)

0.5mx0.15mx60= 4.5L/min

[Note] The flow in L/min for each cassette can be found on the HEF2 Series selection sheet.

[Note] The flow of the constant bleed-off cannot fall below 0.3 L/min. The flow in L/min of the bleed-off can be found on the HEF2 Series selection sheet.

Figure 1


Connection to the water supply (connection to external water at between 1 and 6 bar)

Connecting the drain to the water trap


500 mm gaps recommended for maintenance

1/2” ball valve to cut off water feed

1/2” ball valve for draining manifold and irrigation system

CONNECTIONS AND SETTINGS/REGULATIONS MADE (STANDARD – DIRECT WATER)

500 mm

G

500 mm

G

B

A

B

E

G

H

I

E H AI B

A


HEF2 Series-DW (DIRECT WATER) Water supply and basin draining dimensional drawing


12,5

140500

640

(*)

26,5

(***

) 12

5

(**)

150

Inlet Type (1)Water Supply 1/2”BSP-M

12,5

12,5

125

A=

Wid

th H

EF

2 S

erie

s


Inlet Type (3)Water Supply 1/2”BSP-M




Pro

cess

air

Left Outlet (Right Outlet Symmetric)


Connection to the water supply A

WATER SUPPLY

Connect the water supply (A) to the ½” male BSP (6) using suitable piping with a cut-off valve (1). We recommend the installation of a 0,5 mm filter light (2).

In the HEF2 Series-DW, when the temperature of the feed water is below the dew point of the downstream air flow after the wetting panel, FISAIR recommends to isolate the stainless steel manifold and pipes to prevent possible condensations. To work according to hygienic certificate VDI6022 (ISO846) the isolations should also meet that standards

Fitted by others

6

2 1


Connecting the drain to the water trapB

PVC-U ø32 mm (glued)

DRAINING CONNECTIONS

Connect the ø32 mm common outlet (female/glued PVC-U) for the draining / overflow / constant bleed-off (3), with no cut-off valve, to the network.

The connection of the water outlet to the drainage must include a water trap (5) high enough (2H) to exceed the pressure in the system, so the water tank can be completely emptied, for hygiene reasons. The system will also have the normal slope of typical drainage lines.

Recovering water from the humidification process into the drinking water mains is absolutely prohibited.

2H

Water trap for positive pressures

Water trap for negative pressure

Hmin. (mm)= P(Pa)/10 P= Total fan pressure

2H

HH

2H

3

Fitted by others

5B

Adjust the irrigation valves of the evaporative cassettes so their surfaces are uniformly wet. The empirical value of approximately 0,4 litre/second for each square metre of irrigation surface is enough to exceed the water needed for evaporation. Generally, it is just necessary to ensure the irrigation of the panels has excess water falling into the water tank.

Excess irrigation water is important to ensure constant and superficial washing of the panels.

Example of irrigation x cassette:

Cassette width (500mm) and panel thickness (150mm)

0,5 x 0,15 x 24= 1,8 L/min


E

Regulating with a flat head screwdriver

where shown

Regulation valve + ½” brass flow meter

for adjusting the irrigation of each cassette

[Note] The flow in L/min for each cassette can be found on the HEF2 Series selection sheet.


CONNECTIONS AND SETTINGS/REGULATIONS MADE(OPTIONAL ACCESSORIES FOR RECIRCULATED WATER)

Connection of the water tank filling solenoid valve. This solenoid valve is supplied loose for installation by others

Connection of the zone motor-valve for automatic draining. This motor valve is supplied assembled

Flexible connector for the water supply

External rigid connector for the water supply

External rigid connector for draining

UV light disinfection system

Perimeter closure cover plates

Solenoid valve(s) connection for stage control

Basic control panel with conductivity control CCB + C (*)

HEF2 series for duct

Piping system in stainless steel

Basic Control Panel CCB (*)

Stage control panel CCE (*)

Stage control panel with control by conductivity CCE + C (*)

(*) Go to the corresponding control panel manual.

H

A

D

E

B

C

G

H

I

J

K

L

M

P

E D

A

BH

C

A

B

C

D

E

F

G


CONNECTIONS AND SETTINGS/REGULATIONS MADE (OPTIONAL ACCESSORIES FOR DIRECT WATER)

H

A

D

E

N C

G

E AO NH

Connection of the water basin filling solenoid valve. This solenoid valve is supplied loose for installation by others




UV light disinfection system

Perimeter closure cover plates

Solenoid valve(s) connection for stage control

HEF2 series-DW for duct


Connection of the 3-way motor-zone valve to manage the water feed and emptying of the manifold/irrigation system

Motor-zone valve for emptying the manifold/irrigation system

H

J

K

N

O

A

C

D

E

F

G


Connection of the 24V or 230V water basin filling N.C. solenoid valve (supplied loose for installation by others) (*)A

G ½” brass water filling N.C. solenoid valve

24V connector (L1+N+T) 230V connector (L1+N+T)

230V or 24V coil (50/60 Hz)

44

101,

5

72

L1/N L1/N

40½”

G

(*) In the HEF2 series of recirculated water this solenoid valve must always be installed upstream of the float valve.

In the HEF2 series-DW (Direct Water), this solenoid valve manages the water feed of the irrigation system (it will be supplied assembled on the unit). Eliminates the standard 1/2” ball valve and makes it impossible for the 3-way motor-zone valve to be assembled.

In the case of HEF2 series of recirculated water, the maximum level must manage this solenoid valve.It is used as a security system in the event of a possible failure of the float valve.It must not be used for regulating the water feed. The float valve is responsible for the regulation.


Figure 1: Type I motor-zone valve

Connection of the N.C. motor-zone valve for automatic draining of the HEF2 series (recirculated water)

B

CASE 1: HEF2 series (recirculated water) with the filling solenoid valve and without CCB (basic control panel). This case will assemble the type I motor-zone valve.

CASE 2: HEF2 series (recirculated water) with the filling solenoid valve and with a CCB (basic control panel). This case will assemble the type II motor-zone valve.

CASE 3: HEF2 Series (recirculated water) without the filling solenoid valve and without CCB (basic control panel). This case will assemble the type II motor-zone valve.

TYPE I MOTOR-ZONE VALVE (3 points control)

Technical data

AC 24 V supply(SELV/PELV)

Operating voltage / Frequency AC 24 V ± 20% / 50/60 Hz

Power consumption 2 VA / 1W

AC 230 V supplyOperating voltage / Frequency AC 230 V ± 10 % / 50/60 Hz

Power consumption 2 VA / 1 W

Function dataNominal torque 5 Nm

Runtime for 90° rotary angle 125 s

Auxiliary switches

Contact rating 6 A resistive, 2 A inductive

Voltage (no mixed operation AC 24 V / AC 230 V) AC 24...230 V

Switching range for auxiliary switches 5°...90°

Setting increments 5°

Connection cablesCross-section 0,75 mm2

Standard length 0,9 m

Degree of protection of housing Degree of protection as per EN 60 529 IP 54

Protection class

Insulation class EN 60 730

AC 24 V, feedback potentiometer lll

AC 230 V, auxiliary switch ll

Environmental conditions

Operation / Transport IEC 721-3-3 / IEC 721-3-2

Temperature -32...+55 °C / -32...+70 °C

Humidity (non-condensing) < 95% r. F. / < 95% r. F.

Weight 0,48 Kg.


Electric Diagram connections

Dimensions

GDB13..1 / GLB13..1

3 points control AC 24 V


GDB13..1 / GLB13..1


Adjusting: A, B Auxiliary contacts

Factory setting

A= 5ºB= 85º

Cable labeling

PinCable

MeaningCode Nr. Color Abbrev.

ActuatorsAC 24 V

G 1 red RD System potential AC 24 V

Y1 6 purple VT Position signal AC 0 V, clockwise

Y2 7 orange OG Position signal AC 0 V, counter-clockwise

ActuatorsAC 230 V

N 4 blue BU Neutral conductor

Y1 6 black BK Control signal AC 230 V, clockwise

Y2 7 white WH Control signal AC 230 V, counter-clockwise

Auxiliary switch

Q11 S1 grey/red GY RD Switch A Input

Q12 S2 grey/blue GY BU Switch A Normally closed contact

Q14 S3 grey/pink GY PK Switch A Normally open contact

Q21 S4 black/red BK RD Switch B Input

Q22 S5 black /blue BK BU Switch B Normally closed contact

Q24 S6 black /pink BK PK Switch B Normally open contact


TYPE II MOTOR-ZONE VALVE(2 points control)

Datos técnicos

AC 24 V DC 24…48 V supply (SELV/PELV)

Operating voltage AC / Frequency AC 24 V ± 20 % / 50/60 Hz

Operating voltage (DC) DC 24…48 V ±20 %

Power consumption AC: 5 VA / 3.5 W // DC: 3.5 W

AC 230 V supplyOperating voltage / Frequency AC 230 V ± 10 % / 50/ 60 Hz

Power consumption 7 VA / 4.5 W

Function data

Nominal torque 7 Nm

Runtime for rotary angle 90° (motor operation) 90 s

Closing time with return spring (on power failure) 15 s

Auxiliary switch

AC power supply

Switching voltage AC 24...230 V

Nominal current res./ind. 6 A / 2 A

DC power supply

Switching voltage DC 12..30 V

Nominal current DC 2 A

Switching range for auxiliary switches / Setting increments 5°...90° / 5°

Connection cablesCross-section 0,75 mm2

Standard length 0,9 m

Degree of protection of housing Degree of protection as per EN 60 529 IP 54

Protection class

Insulation class EN 60 730

AC/DC 24 V, feedback potentiometer lll

AC 230 V, auxiliary switch ll

Environmental conditions

Operation / Transport IEC 721-3-3 / IEC 721-3-2

Temperature −32...+55 °C / −32...+70 °C

Humidity (non-condensing) < 95% r. h. / < 95% r. h.

Weight 1.2 kg.

In case 2, when this motor-zone valve is connected to the CCB (Basic Control Panel), it will be necessary to connect the S4 cables (Black/Red) and S6 ones (Black/Pink) to the “Feedback” connection J15 (See page 13 of the basic control panel CCB manual)


Electric Diagram connections

Dimensions

GMA12..1 / GMA32..1




Manual positioning

Cable labeling

PinCable

MeaningCode No. Color Abbrev.

Actuators AC 24 V DC 24…48 V

G 1 red RD System potential AC 24 V/DC 24…48 V

G0 2 black BK System neutral

ActuatorsAC 230 V

L 3 brown BN Phase AC 230 V

N 4 blue BU Neutral conductor

Auxiliary switch

Q11 S1 grey/red GY RD Switch A input

Q12 S2 grey/blue GY BU Switch A normally-closed contact

Q14 S3 grey/pink GY PK Switch A normally-open contact

Q21 S4 black/red BK RD Switch B input

Q22 S5 black/blue BK BU Switch B normally-closed contact

Q24 S6 black/pink BK PK Switch B normally-open contact

Adjusting: A, B Auxiliary contacts

Factory setting

A= 5ºB= 85º

Position Block Unblock





C

D

E

542 mm

X (defined by the client)

Teflon seal

½”

coni

cal B

SP

½” conical B

SP

Flexible filling pipe made of ½“ AISI304 stainless steel.

Length 542 mm

[Note]

It will be delivered unassembled, it must be connected to the inlet of the float valve in the case of recirculated water. In the case of direct water it will be connected to the input 1/2 “BSP-M.

A ½” – 3/8” reduction is supplied when the float valve is 3/8”.

Rigid ½” ASI304 steel filling pipe. (It will be supplied disassembled)

Male/glued ø32 PVC draining pipe. (It will be supplied disassembled)

D

E


U.V. lamp disinfection system (*)F

ULTRAVIOLET LAMP

Concerns related to pathogenic organisms in the water causing illnesses and contaminating industrial processes, have led FISAIR S.L. to provide the optional integration of ultraviolet technology in its evaporative units. This type of system eliminates bacteria, viruses and other pathogens, prevents their reproduction, and results in completely safe drinking water.

U.V. radiation is one band of the electromagnetic spectrum. It has more energy than visible light. The irradiation of germs present in the water with U.V. light harms their DNA molecules (figure 1) in a number of ways, which prevents cell division and kills them. The most harmful radiation for germs has a wavelength of 254 nanometres. The DNA exposed to this energy can only absorb up to a maximum, after which there is an irreparable inactivation of the growth of the pathogens.

The only control panel that includes it as standard, is the panel in which the U.V. lamp is integrated (figure 2).

Figure 1 DNA molecule damage caused

by U.V. light

Figure 2 Control panel

ULTRAVIOLET LIGHT DISINFECTION SYSTEM + WATER FILTERS

50μ water filters

5μ water filters

Cut-off valve U.V. light Control valve

Solenoid valve (*)

TREATED WATER TO THE

HEF2 SERIES WATER SUPPLY

UNTREATED WATER

Cut-off valve

M8 attachment points

Control valve

BSP ½” connector

BSP ½” connector

Warning!!! To avoid unnecessary blockages in the filters of the system, the water should be made to circulate through the by-pass when the appropriate settings are being made to the irrigation of the cassettes and the cellular panel is being washed during installation.

(*) This valve is the optional water supply valve.

A A

A A

A


Perimeter closure cover platesG

a Unassembled cover plates

a

c Anchor points

c

b Assembled cover plates

b

c

c

c


Figure 1: HEF2 series (recirculated water) with 3 stages

3rd stage solenoid valve

2nd stage solenoid valve

1st stage without solenoid valve (managed by the on / off switch of the pump)

Figure 2: HEF2 series-DW (direct water) with 3 stages.

3rd stage solenoid valve

2nd stage solenoid valve

1st stage solenoid valve

Solenoid valve(s) connection for stage controlH

CASE 2: (figure 2) HEF2 series-DW (direct water)

• Each stage manages the irrigation of 1 cassette

• For each stage there will be a solenoid valve located

after the regulating flow irrigation valve. (*)

• 5 stages as Maximum to manage the biggest HEF2

with 5 cassettes

CASE 1: (figure 1) HEF2 series (recirculated water)

Each stage manages the irrigation of 1 cassette.

• The first stage is managed

with the ON / OFF switch of the pump •

The following stages (from 2 to 5) will be managed by a solenoid valve located after the regulating flow irrigation valve. (*)

(*) To connect the valves refer to page 35. point A.


HEF2 series-DW for ductJ

HEF2 SERIES FOR DUCT (RECIRCULATED WATER) Main Levels + Water supply and basin draining connections

A = Width HEF2 Series

Water outlet to drainPVC-U D32-F (type L outlet)

Water outlet to drain PVC-U D32-F (type R outlet)


Water supply 1/2”BSP-M

(1) & (3) Inlet types


(3) Inlet types


(1) Inlet types

Hig

th H

EF

2 S

erie

s

15 15

120

125 (*)

26,5

650

(**)

150

860

250

125

330

210

125

111

ø10

Process air

Pro

cess

air




HEF2 SERIES-DW FOR DUCT (DIRECT WATER) Main Levels + Water supply and basin draining connections

A = Width HEF2 Series


Water outlet to drain PVC-U D32-F (type R outlet)



(1) & (3) Inlet types


(3) Inlet types


(1) Inlet types

Hig

th H

EF

2 S

erie

s

15 15

168

125 (*)

26,5

(**)

192

500

710

25

25

125

210

168

168

111

ø10

Process air

Pro

cess

air





Connection of the 3-way motor-zone valve to manage the water supply and the emptying of the manifold/irrigation system (figure 1)

Motor-zone valve for emptying of the manifold/irrigation system (figure 2)

K

N

O

All pipes, elbows, tees, etc., in stainless steel except the draining/overflow panoply which continues in PVC-U.

All the valves remain in brass or bronze.

When designed to work at high temperatures (painting cabins, ovens, heating coils...), the draining/overflow panoply will be in stainless steel. Consult FISAIR for more information.

To manage the water supply and the emptying of the manifold/irrigation system of the HEF2 Series-DW (direct water) the type II motor-zone valve is assembled (page 39). The actuator will be the same as the two way valve.

To manage the emptying of the manifold/irrigation system of the HEF2 Series-DW (direct water) the type I motor-zone valve is assembled (page 36).

Type II motor-zone valve (3 ways)

Water supply

Water flow to basin

Water flow to manifold/irrigation system

Water flow from manifold/irrigation system

Type I motor-zone valve (2 way)

ASSEMBLIES WATER FLOW DIRECTION

WATER SUPPLY FLOW

DIRECTION

DRAINING MANIFOLD FLOW

DIRECTION

Figure 1

Figure 2


Installation and recommendations

Maintenance

GENERALITIES

FISAIR HEF2 Series evaporative humidifiers essentially work by means of the irrigation of the evaporative panels. Humidifiers execute their function whenever air currents pass through them and the water pump irrigates the panels.

Note: To remove superficial inorganic material/dust on the panels and to prevent its transmission to working areas, we recommend leaving the water irrigation pump on for 6 hours, with no air flow, in order to wash the panels. Subsequently, the washing water must be emptied before starting up the unit as per normal.

To ensure the correct operation, according to the hygienic standard VDI6022, maintenance should be performed regularly as directed, and it is also necessary to keep a maintenance record.

GENERALITIES

Humidifier components are very easy to maintain, because the only active parts are the irrigation pump and the float valve. The following elements require some kind of maintenance:

Once a month, the irrigation pump: The most important thing is to monitor to ensure dirt does not obstruct the suction impulsion circuit and electricity consumption is lower than the power rating shown on its plate.

Once a year, the float valve: This must be inspected on a regular basis to ensure its mechanical closure and opening works correctly.

Once a year, the control valves: These must be inspected to ensure their mechanical regulatory function works correctly.

Once a year, the solenoid valves (if applicable): These must be inspected to ensure their mechanical closure and opening works correctly.

HEF2 SERIES WITH EXTERIOR AIR OR INSTALLED IN AN AHU OUTDOORS

All units using the HEF2 Series with exterior air must stop the pump and drain the water tank in the event of preheater faults. Units for adiabatic cooling of the return air must drain the water tank water during the winter.

OPERATIONAL PERFORMANCE CONTROL

Humidifiers work with excess panel irrigation. If evaporative performance is to be regulated, this is not done by controlling the quantity of irrigation water but rather:

Regulating the number of cassettes in operation. The FISAIR HEF2 can be equipped with the components necessary for external control or may also include FISAIR stage control panel CCE.

Alternatively, by controlling irrigation operation times, so the humidity/temperature regulator acts on the pump working time.

Once every three months, the evaporative panels: Their operating life basically depends on the correct use of the constant bleed-off system for mineral salts which prevents the formation of superficial lime deposits, from the supply of drinking or industrial water. If they are not maintained properly, the panels have to be replaced more often, because the flow of air through them can be blocked by these deposits.

Once a year, the irrigation: Take the steps described on the page entitled “Cleaning the individual irrigation system”.

In the interests of correct maintenance, it is advisable to make regular observations on the days after installing the system, to understand the specific behaviour of the installation, so the draining and cleaning programmes can be set. Similarly, during long periods of inactivity (summer for humidification for comfort, and winter for evaporative refrigeration) it is essential to completely drain and clean the water tank.


Cleaning and disinfection

Evaporative humidification: A natural method that does not carry bacteria.

The operational features of evaporative humidifiers are based on the natural effect of the water evaporation when an air flow goes through/by a wet surface (is the same natural principle that occurs when water evaporates from waterfalls, rivers, lakes, seas...).

Evaporation means that the water leaves the humidifier as pure vapour (gas). Minerals and eventual pollutants stay in the water and can be eventually drained / eliminated.

With no droplets or aerosols carry over, the bacteria can’t be transferred to the humidified air. It is important to use a droplet separator when its needed.

The evaporative humidifiers work with water temperatures below 24°C, very far from the optimal growth temperatures of the bacteria present in the water, essentially Legionella pneumophila, with an optimum growth temperature of 37-41ºC.

The water basin, manifold, irrigation system and the other components of the HEF2 series are specially designed for there to be complete emptying by gravity, without the aid of mechanical elements.

Based on the quality of treated air and water supply, a cleaning and emptying inspection plan should be established.

Evaporative humidifiers must be cleaned regularly to prevent contamination. All surfaces of the components (panel, pipes and especially the water basin) should be disinfected with an appropriate solution.

You must pay special attention to cleaning the piping system, especially in bends and junctions; the cleaning process must reach all ends of the system.

In the case of the panels, the use of chemical disinfectants for daily maintenance is not recommended because it could reduce the efficiency of the panel and its useful life. If the use of chemicals is necessary, either for a long period of inactivity or any other reason, an effective method is to dip the panels in chlorine disinfectant such as sodium hypochlorite (bleach) or sodium percarbonate.

In the case of the use of disinfectants with chlorine, it is imperative to consider the formation of toxic chlorine gas when combined with an acid solution.

egarding disinfection of other components, the same bleach solution may be valid. The number and frequencies of the cleaning /disinfection process must be established by the installation responsible in function of the installation requirements, unit working time, water quality, air quality, etc.

To insist once more, the optimal performance is principally based on a correct irrigation regulation, a correct bleed-off regulation and a correct emtying regulation.

An additional and very good practice would be to add a water supply treatment.

Hygienic conformity test.

The HEF2E humidifiers have the “hygienic conformity test” certificate. Complying with the requirements of the following standards:

For air conditioning: • VDI 6022, part 1 (07/2011) • SWKI VA104-01 (04/2006) • VDI 3803, part 2 (02/2010)

For hospitals: • DIN 1946-4, (12/2008)

All the materials included in the HEF2E have obtained a negative result in the proliferation of pathogenic microorganisms. The non-metallic components comply with the requirements of standard DIN EN 846 “Plastics. Assessment of the action of microorganisms”


LATERAL Disassembly

DISASSEMBLY OF CASSETTES AND DROPLET SEPARATORS. LATERALLY

The unit can be disassembled in a few simple steps for maintenance and/or cleaning work of the HEF2 Series.

Disassemble the collector + regulation valve set for the irrigation flow of the evaporative cassettes.

1st

Disassembly steps:

ba

Unscrew each irrigation union

c Collector + regulation valve set of the irrigation flow

Unscrew the unions


Disassemble the D25 PVC-U up-pipe to the collector.

Disassemble front cover

2nd

3rd

b

a

Unscrew the two screws

holding the piece in place

b Front cover

Unscrew the DN20 PVC-U ball valve fitting

D25 PVC-U pipe

a


Disassemble the side cover

4º

Unscrew (upper screw) without removing

the screw from its bolt

Unscrew (lower screw)

Unscrew (lateral screw)

a

c

b


a

c

5º

6º

b

Unscrew

Release the pipe from the nylon clip

Removal of the droplet separators.

Disassemble the “C” piece (there is one piece for each evaporative cassette)

side view front view


7º

a

Removal of evaporative cassettes

Remove the cassettes


4º

a

a

cb

b

5º

FRONT Disassembly

UNIT DISASSEMBLY. FRONT

The unit can be disassembled in easy steps for maintenance and/or cleaning work of the HEF2 Series.

Disassembly steps

1st LATERAL disassembly step 1

2nd LATERAL disassembly step 2

3rd LATERAL disassembly step 3

Bleed-off disassembly

Unscrew the brass fitting of the regulation valve + flow meter of the bleed-off

Unscrew the support

Bleed-offUnscrew the ½” PVC-U union

If the float valve is mounted on the support, disconnect the water supply

Disassemble the support + pump + level detector set (optionally the float valve can be mounted on this support)


7º

8º

6º

9º

b

a

LATERAL disassembly step 6

Disassembly of the “b” piece

Removal of droplet separators

Removal of the evaporative cassettes

Unscrew the four screws (2 on each side)


1º

c

b

d

a

Cleaning the individual irrigation system

Remove the individual top piece mounted on each evaporative cassette

Remove the individual irrigation top piece

Individual top piece

Press with both hands on one of the flaps,

as shown in the image.Evaporative

cassette


CLEANING THE INDIVIDUAL IRRIGATION SYSTEM OF THE WATER TANK

Clean the perforated pipe of the individual irrigation top piece

2º

Use the special brush supplied with each HEF2 Series

The out-of-reach zones of the water tank simply by hand.

Use the special brush supplied with each unit

Brush the perforated pipe as shown in the image

a

a

b

[Note]

We recommend 10 strokes swivelling 180º each time.

LIST OF SPARE PARTS


HEF2 Series

HE

F2

Se

rie

s In

stal

latio

n an

d m

aint

enan

ce m

anua

l

11

13

15 12

7

18

10

17

16

14

9a, 9b, 9c, 9d

2a, 2b, 2c, 2d

, 2e

1a, 1b

8a, 8b

3a, 3b

ó

an

d/o

r

4a, 4b

6a, 6b

5a, 5b, 5c, 5d

2a, 2b, 2c, 2d

, 2e

Lis

t o

f

spare

part

s


List of spare partsItem Code Component

Regulation Valve Collector Up-Pipe

1a 62341010 PE-EPDM ball valve / 25 / Glue

1b 62341005 PE-EPDM ball valve / 20 / Glue

Regulation Valve Showing Cassette and Bleed-off Flow

2a 62000050 Regulation Valve Showing Flow DN15 0.3-1.5 I/m

2b 62000055 Regulation Valve Showing Flow DN15 0.6-2.4 I/m

2c 62000060 Regulation Valve Showing Flow DN15 1-3.5 I/m

2d 62000065 Regulation Valve Showing Flow DN15 2-8 I/m

2e 62000070 Regulation Valve Showing Flow DN153-12 I/m

Draining Set, Overflow to Drain

3a 50500000 Left

3b 50500001 Right

Bleed-off set

4a 50500002 Left

4b 50500003 Right



Water Recirculation Pump

5a 65310065 Water Pump 50 W. 230V./I/50Hz.

5b 65310005 Water Pump 60 W. 230-400V./III/50Hz.

5c 65310050 Water Pump 120 W. 230-400V./III/50Hz.

5d 65310020 Water Pump 240 W. 230-400V./III/50Hz.

Water Supply Float Valve

6a 62350010 AISI 304 Stainless Steel Float Valve 3/8”

6b 62350015 AISI 304 Stainless Steel Float Valve ½”

Draining Cut-off Valve

7 62000015 ¾” F-F Chrome Brass Ball Valve Lever

8a 710900052 Way Zone Motor Valve DN20 (¾”) F-F Threaded 230V

8b 710900062 Way Zone Motor Valve DN20 (¾”) F-F Threaded 24V



Cassette Irrigation Set

9a 50400000 For 300 mm Cassette

9b 50400001 For 400 mm Cassette

9c 50400002 For 500 mm Cassette

9d 50400003 For 600 mm Cassette

10 50400004 Cassette Irrigation Supply Set

11 14440005 Cassette Irrigation Pipe

12 50400005 Collector Pump-Bleed Off-Up Pipe Set

Max/Min Level Detector

13 64220313 Max/Min Level Detector



Irrigation Individual Distribution Nylon Clip

14 60700015 D20 mm Nylon Clip

Stainless Steel Collector

15 1st) Provide HEF2 Series Serial Nº

Droplet Separators

16

1st) Measure A in the droplet separator being replaced

2nd) Provide the HEF2 Series Serial Nº

Evaporative Cassettes

17

1st) Measure B in the evaporative cassette being replaced

2nd) Give the HEF2 Series Serial Nº

Solenoid valve

18a 71090005 Solenoid valve 24V

18b 71090006 Solenoid valve 230V

B

A

HEF2 SeriesInstallation and maintenance manual

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HEF2 Series - Agon · PDF fileHEF2 Series Evaporative Humidifiers for ... designed so it can be completely emptied by gravity. A pump for supplying water from the water tank to