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Functional Component Defi nitions
MECHANICAL COMPONENTS
Vent door Allows introduction of fresh air into the room and/or
exhausts stale room air outside (on select models.)
Plenum assembly Diffuser with directional louvers used to direct
the conditioned airfl ow.
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.
ELECTRICAL COMPONENTS
Thermostat Used to maintain the specifi ed room side comfort
level
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 sup-
ply to the fan motor through the thermostat, which allows for a
cycle-fan operation.
Fan Motor Dual-shafted fan motor operates the indoor blower
wheel and the condenser fan blade simultaneously.
Heat anticipator Used to provide better thermostat and room
air temperature control.
HERMETIC COMPONENTS
Compressor Motorized device used to compress refrigerant
through the sealed system.
Check valve A pressure-operated device used to direct the fl ow
of refrigerant to the proper capillary tube, during either the heating
or cooling cycle.
Capillary tube A cylindrical meter device used to evenly distribute
the fl ow of refrigerant to the heat exchangers (coils.)