CONDENSER FAN (1). The condenser fan draws ambient air from outside. The air flow over the condenser
coil and is exhausted to the outside.
CONDENSER COIL (2). Air drawn through the condenser coil by the condenser fan cools the refrigerant
inside the condenser coil.
Figure 1-4. Right rear three-quarter view, location and description of major components
Section III. Technical Principles of Operation
PRINCIPLES OF OPERATION.
a. General. The air conditioner is a fully self-contained unit capable of providing cooling, heating or ventilation to
the conditioned area.
(1) The cooling section consists primarily of a compressor, high and low pressure cut-out switches,
condenser coil, evaporator coil, and a fan motor which operates both a condenser fan and an evaporator fan on a
common shaft. When the selector switch is placed in the "COOL" position, the fan motor and the compressor start. The
cooling section is under control of the thermostat, which serves to maintain the temperature of the conditioned area at the
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