* Terminals may be labeled differently or may
not appear on the device. Please consult the
monitored device installation instructions
6
7
❸
Connect the remaining Dry Contact Sensor wire
to the C terminal on the HVAC control board.
❹
The switches on the front of the Dry Contact Sensor
should be set to NC (black) and 24V (orange).
❺
Remove the battery tab from the Dry Contact Sensor.
❻
Using the screws, double-sided adhesive tape, or cable
tie provided, install the mounting bracket to a wall or
pipe near the desired monitoring area, and then
mount the Dry Contact Sensor.
❼
Turn on power to the HVAC unit. If the LEDs are
blinking in a pattern, that means the switches are
configured incorrectly. Please double check the wiring
and switch positions before testing the unit.
❽
Test the operation of the Dry Contact Sensor by
tripping the float sensor and holding it in that position
for approximately two seconds. Make sure the Alert
LED on the Dry Contact Sensor turns on for 3 seconds.
If the sensor remains in the alert state, it will continue
to blink for 5 minutes.
Monitoring float switches with
a dedicated alarm circuit
❶
Turn off power to the HVAC unit.
❷
Install or locate the existing switch with an
alarm circuit.
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