924VHE4.02 -
VEH
series humidifiers
02/2022
| 24 |
6.3 Wiring diagram
1 2
3 4
5
6 7
8
9
10
11
12
13 14
15
16
17
18
19
20
Fig. 20.
Auxiliary terminal block wiring diagram
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.).
