FUNCTIONAL COMPONENTS
A. Mechanical components
Drain pan valve
Plenum assembly
Diffuser with directional louvers used to direct the conditioned airflow.
Blower wheel
Attaches to the indoor side of the fan motor shaft and is used for distributing unconditioned, room side air though the heat exchanger and delivering conditioned air into the room.
Slinger fan blade
Attaches to the outdoor side of the fan motor shaft and is used to move outside air through the condenser coil, while
slinging condensate water out of the base pan and onto the condenser coil, thus lowering the temperature and pressures within the coil.
B. Electrical components
Thermostat
Used to maintain the specified room side comfort level
System switch
Used to regulate the operation of the fan motor, the compressor or to turn the unit off. For troubleshooting, refer to the wiring diagrams and schematics in the back of this service manual.
Capacitor
Reduces line current and steadies the voltage supply, while greatly improving the torque characteristics of the fan motor and compressor motor.
MoneySaver® switch
When engaged, it sends the power supply to the fan motor through the thermostat, which allows for a
Fan Motor
Solenoid
Used to energize the reversing valve on all heat pump units.
Heating element
Electric resistance heater
Heat anticipator
Used to provide better thermostat and room air temperature control.
C. Hermetic components
Compressor
Motorized device used to compress refrigerant through the sealed system.
Reversing valve
A
Check valve
A
Capillary tube
A cylindrical meter device used to evenly distribute the flow of refrigerant to the heat exchangers (coils.)
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