Catalog No. 11-808-639-01
6 of 8
Specifications subject to change without notice.
Water Leak Detector
Installation and Troubleshooting
#26268
– 02
/28/2020
Wiring and Termination
Figure 14:
Leak Detector Circuit Board
Terminal Description
A
Water Sensor (No polarity to water
sensor cable)
B
Water Sensor (No polarity to water
sensor cable)
NC2*
Alarm Contact 2, Normally Closed to
C2 when De-energized
COM2
Alarm Contact 2, Common
NO2
Alarm Contact 2, Normally Open to
C2 when De-energized
NC1*
Alarm Contact 1, Normally Closed to
C1 when De-energized
COM1
Alarm Contact 1, Common
NO1
Alarm Contact 1, Normally Open to
C1 when De-energized
GND/NEU Power supply ground/neutral
V+/HOT
Power supply input 24VAC +/- 10%
*Not used for low current relay version, SPST, Form A
Sensitivity Adjustment for 10’ Remote Rope Sensor
The unit’s leak detection sensitivity is set at the
Sensitivity Adjustment Potentiometer
factory. However, for the remote rope sensors, the
sensitivity may need to be adjusted in the field.
If you are using a 10-foot remote rope and
it won’t
respond, rotate the sensitivity adjustment
potentiometer 5 turns counterclockwise.
If you are using a 100’ remote rope and it is too
sensitive, then rotate the sensitivity adjustment
potentiometer 5 turns clockwise.
Figure 15:
Leak Detector
Circuit Board
