Carel humiSteam Basic UE003, Инструкция по установке, эксплуатации и использованию

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Installation, Operating & Maintenance Manual
17
1.6 Control wiring
The HumiSteam
Lite
control system allows one humidistat to be
connected, as well as various safety devices, remote on/off,
alarm and serial communications.
Generally, the control humidistat (H) is located in the room or
return air duct. In the case where the HumiSteam uses a direct
discharge blower unit, this is the only control needed. In ducts
or air handlers, a high limit humidistat is usually added to act as
a safety (CR), as well as an air flow proving device.
Control wiring is made directly to the control
board terminals:
1.
alarm output terminal block;
2.
control signal terminal block;
3.
DIP switches for selecting drain mode;
4.
DIP switches for selecting TA RATE.
Control Signal Terminal Block (# 2 in diagram)
NOTE: DO NOT apply any voltage to terminals AB & AB. Connect external dry contact or jumper wire
ONLY.
Terminal Function Electrical specifications
+VR output voltage for sensors 10V; min. 5 k-ohm
range: 0 to 10 V;
SET control signal input
input impedance: 15 k-ohm
GND common for +VR and SET
Connects to external NO contact;
Maximum resistance = 50 ohm;
Maximum impedence = 10mAdc;
AB
AB
remote enabling input
humidifier enabled = contact closed