: Service Manual
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
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Accumulator, Reversing Valve (RVS)
The R-410A heat pumps have a specifically designed reversing valve,
for R-410A application and an accumulator for storing excess liquid
refrigerant during the heating mode to prevent damaging flood-back.
A10170
Fig. 29 – ECM Motor
A10169
Fig. 30 – ECM Module Plug
Control Box
Contactor, Capacitor and Board
Removal of the front, right compressor/control panel will expose most of
the unit’s components. Both the air conditioner and heat pump control
boxes will be in the upper right corner of the unit. There will be a
contactor that cycles components off and on. The capacitor will assist the
outdoor fan and compressor to operate. The heat pump models will have
a circuit board to control the defrost cycle.
Always replace these devices with the Factory Approved Components.
Incoming Power
Incoming power is attached to the two power wire stripped leads. A
ground lug is also provided. Unit should always be grounded through the
ground lug to the unit disconnect and from the disconnect to the
electrical fuse box. Failure to do so can cause serious injury or death.