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INSTALLATION GUIDE
Typical Alarm Connection Wiring
The controller provides a normally open and normally closed dry contact to set off an
alarm in case low or high temperature condition occurs. Moreover, this same contact can
be used to signal a power failure or other malfunctions. It may be connected to an alarm
system or directly to a siren and/or auto-dialer.
Make the normally closed (NC) or normally open (NO) connections as indicated in
figures 12 and 13.
The relay will activate about 30 seconds after an alarm is triggered.
FIGURE NO. 12 Typical Alarm Connection Wiring
FIGURE NO. 13 Siren Connection Wiring
NC
NC
HUM(P6) 12 VDC
ALARM
P1
Normally closed
manual OFF switch
Page 50
C
NO
C
NO
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