51
Installation
Nortec EL
2582302_C_EN_1611
5.8.3.9
Remote Relay PCB Connections
The optional remote relay PCB (printed circuit board) on the Nortec EL steam humidifier has the follow
-
ing four potential-free relay contacts for remote display of humidifier status and fault conditions. Refer
to
Figure 34
for the relevant terminal contacts.
•
Error – this relay can be wired to open (NC) or close (NO) when a fault is detected by the humidifier
controls.
•
Service – this relay is activated when the set maintenance interval elapses. It can be wired to open
(NC) or close (NO) when a service warning appears on the touchscreen panel of the humidifier and
the status
LED turns yellow in color.
Note:
The way this relay handles system warnings (all warnings or service warnings only) can
be configured in the control software – refer to the Remote Fault Board tab in the Operation and
Maintenance Manual.
•
Steam – this normally open (NO) relay closes when the control board detects a current draw and
production of steam.
•
Unit on – this normally open (NO) relay closes when the humidifier has power, and the On/Off switch
is in the On position.
Figure 34:
INTERNAL
EXTERNAL
4
3
2
1
2
1
Analog Out
Sensor Supply
Max. 60m
A
Unit ON
Steam
Service
Error
1 2 3 4 5 6 7 8 9 10
F1
100mA
H1
J2 on Control Board
Remote Relay PCB Connections
The remote relay PCB connects to the connector J2 on the Nortec EL control board.