Wiring Diagram - Elsteam VEH Series Manual

6.3 Wiring diagram

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1
Number Description
1-2 SELV control signal input connection 0...10 V | 1 = 0...10 V (+) | 2 = 0...10 V (-)
3-4 SELVON/OFFcontactconnection
5-6 SELV control signal input connection 4...20 mA | 5 = 4...20 mA (-) | 6 = 4...20 mA (+)
7-8 SELV digital input for enabling ventilation
9-10
Connection to AHU micro-switch enabling terminal (*)
11-12 SELV alarm digital output connection
13...15 ModbusconnectionRS-485|11=RS-485+|12=RS-485-|13=RS-485GND
16-17 24 Vac electric drain pump connection
18-19 12 Vac inlet solenoid valve connection
20 Maximum level sensor connection
(*):Themicro-switchcontactshouldhaveaminimumpoleopeningof8mm(0.31in.).
924VHE4.02 - VEH series humidifiers
11
10
9
8
7
6
5
4
3
Fig. 20. Auxiliary terminal block wiring diagram
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18
17
16
15
14
13
12
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02/2022