2 18-HE46D1-3B-EN
Installer’s Guide
4. Remove the service access panel to the left side of
the control box of the air conditioner or heat pump.
5. Attach the liquid line sensor to the liquid line:
a. If installing on a cooling only air conditioner unit,
attach the liquid line sensor to the liquid line near
the drier assembly. Apply thermal grease (sup-
plied) to the liquid line, where the sensor will be
mounted. Using the clamp provided, attach the
sensor as shown; Figure 2A. When completed,
wrap the complete assembly with the insulation
tape.
b. If installing on a heat pump unit, attach the liquid
line sensor to the liquid line running vertically,
directly behind the control box. Apply thermal
grease (supplied) to the liquid line, where the
sensor will be mounted. Using the clamp provid-
ed, attach the sensor assembly as shown; Figure
③
②
A) COOLING ONLY AIR CONDITIONER
LIQUID LINE TEMPERATURE SENSOR
B) HEAT PUMP
CONTROL BOX SENSOR WIRING ROUTING
APPLY CLAMP TO SENSOR AND LIQUID LINE
2B. When completed, wrap the complete assem-
bly with the insulation tape provided.
6. Route the sensor leads through the low voltage
access hole and attach to the two (2) pin connector
provided on the control board. See Figure 3.
MOUNTING LIQUID LINE TEMPERATURE SENSOR
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