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VEH | Immersed electrode humidifiers for air handling units (AHU)
For further information, consult the operating and maintenance manual downloadable from
the website www.eslteam.it or scan the QR CODE.
SCANSIONA IL QR CODE E
SCAN THE QR CODE AND
LEGGI IL MANUALE D'USO!
READ THE USER MANUAL!
ELECTRICAL WIRING
DANGER
RISK OF ELECTRIC SHOCK, EXPLOSION OR ELECTRIC ARC
• Various product components, including the printed circuits, run at hazardous voltage levels.
• Only use electrically insulated and suitably calibrated measuring devices and equipment.
• Do not open, disassemble, repair or modify the product.
• Before handling the product, make sure you are wearing all the necessary personal protective
equipment (PPE).
• Do not expose the equipment to liquids or chemicals.
• Use this device and all parts connected to it at the specified voltage only.
• Do not use this equipment for critical safety functions.
FAILURE TO FOLLOW THESE INSTRUCTIONS WILL RESULT IN DEATH OR
SERIOUS INJURY.
DANGER
RISK OF ELECTRIC SHOCK, EXPLOSION OR FIRE
• Install the humidifier away from electronic equipment.
• Do not install the humidifier above electronic equipment.
FAILURE TO FOLLOW THESE INSTRUCTIONS WILL RESULT IN DEATH OR
SERIOUS INJURY.
DANGER
RISK OF ELECTRIC SHOCK AND FIRE
• Do not use the device with loads greater than those indicated in the technical data section.
• Do not exceed the temperature and humidity ranges indicated in the technical data section.
• Provide safety interlocks (isolators) of a suitable size between the power supply and the humidifier.
• Only use cables with a suitable cross-section as indicated in the "Wiring best practices" section of the
operating and maintenance manual.
FAILURE TO FOLLOW THESE INSTRUCTIONS WILL RESULT IN DEATH OR
SERIOUS INJURY.
WARNING
MALFUNCTIONING OF THE EQUIPMENT
• Perform the wiring carefully, in compliance with electromagnetic compatibility and safety
requirements.
• Do not operate the product with unknown or incorrect settings or data.
• Make sure the wiring is correct for the final application.
• Use shielded cables for all I/O signal and communication cables.
• Minimise the length of the connections as much as possible and avoid winding the cables
around electrically connected parts.
• The signal cables (analogue and digital inputs, communication and corresponding power
supplies), power cables and power supply cables for the device must be routed separately.
• Before applying the power supply, check all the wiring connections.
• Do not connect wires to unused terminals and/or to terminals labelled "No connection "(N.C.)".
FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN DEATH, SERIOUS
INJURY, OR EQUIPMENT DAMAGE
.
WARNING
BIOLOGICAL RISK
• In the event of inadequate use and/or poor maintenance it is possible that microorganisms
(including the bacterium that causes Legionellosis) may proliferate and be transferred into
the air treatment system.
• The humidifier must be used properly and be maintained and cleaned properly at
prescribed intervals, as described in chapter MAINTENANCE in the manual of operating
and maintenance.
FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN DEATH, SERIOUS
INJURY, OR EQUIPMENT DAMAGE
.
DIMENSIONS
Electrical panel
mm (in.)
Hydraulic unit
mm (in.)
(x)
Dimensions
Dimensions
4 Electrodes
7 Electrodes
(X) [mm (ft.)]
(X) [mm (ft.)]
VEH10XS
635 (2.08)
---
VEH40S
VEH20S
VEH60XL
785 (2.57)
---
VEH20XS
---
635 (2.08)
VEH60M
VEH30M
985 (3.23)
---
VEH80L
VEH30S
---
785 (2.57)
VEH100XL
VEH40L
1185 (3.89)
---
SUITABLE WIRING FOR THE POWER SUPPLY
Models
Wiring size
Permissible wiring type
VEH10••
3G4
VEH20••
3G6
VEH30•
3G10
VEH40•
3G16
VEH60••
VEH80•
3G25
VEH100••
Description
Steam production
Production capacity:
Pressure limits:
Electrical properties
Power absorbed:
Power supply:
Phases:
Absorption per phase:
Water properties
Supply water conductivity:
Supply water hardness:
Minimum inlet flow rate:
Supply water pressure:
Supply water connection:
Water drain outside diameter:
Electrical panel ambient conditions
Ambient operating conditions:
Transportation and storage conditions:
Hydraulic unit ambient conditions
Ambient operating conditions:
Transportation and storage conditions:
CV
0/1
20
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
Out1
167 (6.57)
1
2
Power supply
(x)
4 Electrodes
7 Electrodes
---
785 (2.57)
1385 (4.54)
---
---
985 (3.23)
---
1185 (3.89)
---
1385 (4.54)
Pitch
[mm(in.)]
17,8 (0,70)
26,5 (1.04)
35,5 (1.40)
MU
VEH 10XS
kg/h
10
Pa/bar
kW
7.5
V, Hz
Ph
A
11
μS*cm
°f
l/h
MPa/bar
---
mm (in.)
°C (°F), %
°C (°F), %
°C (°F), %
°C (°F), %
Cooling
coil
mm (in.)
Intrabus
S2
S3
RS-485
S0
S1
S0
S1
S2
S3
HMI
BMS
DP2
USB
Out2
Out3
Out4
Out5
Out6
3
4
5
6
7
8
9
10 11 12
Out4
Out5
Out6
CABLE GLANDS AND CABLE ROUTING
1
3
4
5
Rif. Descrizione
Power cable entry on cable gland
1
(PGx depending on model)
Power cable exit on cable gland
2
N.C.
(PGx depending on model)
Solenoid valve and electric pump
3
power cable exit on cable gland
PG9
Level sensor wiring exit on cable
4
gland PG9
I/O regulation wiring entry on
5
cable gland PG9
2
TECHNICAL SPECIFICATIONS
VEH 20••
VEH 30••
VEH 40•
20
30
40
There are no pressure limits (*)
15
22.5
30
400 Vac, 50/60
3
22
32
43
70...1250
5...50
300
0.02...1/0.2...10
M 3/4" GAS
40 (1.57)
-10...40 (14...104), 10...80%
-20...70 (-4...185), 5...95%
1...40 (33.8...104), 10...80%
-10...70 (14...185), 5...95%
MOUNTING
1
mm (in.)
Droplet
separator
100 (3.94)
WIRING DIAGRAM
CT1
CT1
SCI1
45 46 47 48
49 50
TERMINALS
1-2
24 Vac power supply
1-3
Digital output: water outlet solenoid valve
DP1
1-4
Digital output: water outlet pump
1-5
Digital output: contactor (steam generation)
6-7
Digital output: dehumidification enable
8-9
Digital output: ventilated distributor control
10...12 Digital output: alarm
13-14 Hazardous voltage digital input: level sensor LS1
20-21 Digital input: fan enable (CV)
22-23 Digital input: remote ON/OFF (0/1)
24-25 Digital input: humidistat (CFG = 0-1) (S0)
26-27 S1 analogue input: temperature (anti-freezing and hold)
28...30 S2 analogue input: humidity sensor
31...33 S3 analogue input: humidity limit sensor
34...36 Serial line connection: HMI Intrabus
38...40 Serial line connection: RS-485 modbus for BMS slave
45-46 Analogue connection: external current sensor CT1 (TA)
47...52 Reserved
Activate termination resistor on SCI1 RS-485 serial line.
DP1
1 = SCI1 RS-485 serial termination; 2 = Reserved
LS1
Termination resistor on BMS / CANBUS RS-485.
DP2
1 = BMS RS-485 serial termination
2 = CANBUS serial termination
13
14
NC
LS1
POWER-UP AND START-UP
1. Check the filling and drain network
2. Let the water drain for a few hours before making the final connection
3. Fit the power fuses
4. Connect the humidistat or the probe in accordance with the required operation
5. Check that the CV contact is closed
6. Activate the isolator installed outside the humidifier and open the water supply source
7. Press the ON/OFF key on the electric panel door to start the humidifier
8. Set the electrical conductivity of the incoming water
9. Set the humidity setpoint SP to 100%
10. The humidifier will start a boiler filling cycle
11. Set the humidity setpoint SP to the value required for the application
12. The humidifier is ready to produce steam.
Disposal
The device must be disposed of in accordance with local regulations regarding the
collection of electrical and electronic appliances.
VEH 60••
VEH 80L
VEH 100XL
60
80
100
45
60
75
65
87
108
2
100 (3.94)
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