Specifications

Installation & Maintenance Manual__________
20
5.3.5 Alarm Contact
The controller also provides a SPDT relay contact for the remote indication of any alarm conditions. Connection
to the alarm contact (max. voltage 250 Vac; max. capacity: 8A res. - 2A ind.) is made through the plug-in Z
terminal block, as shown in Figure 5.6.1.
5.3.6 Dehumidification Contact
In the H Type control program, a SPST – N/O relay contact is available, which can be programmed to actuate
an external dehumidifier. Connection to the dehumidifier contact (max. voltage 250 Vac; max. capacity: 8A res.
- 2A inductive) is made through the plug-in Z terminal block, as shown in Figure 5.7.1.
Figure 5.6.1 Figure 5.7.1
5.3.7 Remote Terminal/Supervisor System
The controller of the humidifier can be connected to an RS485 serial line as shown in Figure 5.8.1, to ultimately
connect to:
• A Carel control panel (see dedicated manual) to manage up to 4 humidifiers;
• A remote supervisor system. (Maximum network distance = 1 mile.)
Figure 5.8.1
1Z
2Z
3Z
4Z
5Z
6Z
7Z
8Z
9Z
10Z
11Z
12Z
13Z
14Z
N.O.
C
1J 2J 3J
4J
GND
L -
24V aux
L +
1Z
2Z
3Z
4Z
5Z
6Z
7Z
8Z
9Z
10Z
11Z
12Z
13Z
14Z
N.O.
N.C
C