Carel UE005 User Manual download pdf (Page 17)

Installation, Operating & Maintenance Manual

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;

remote enabling input

humidifier enabled = contact closed

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 31 32

No comments

Carel UE005 User Manual Page 17