Piper ARCHER III Pilot Operating Handbook page 285

PA-28-181, ARCHER Ill
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SECTION 7 - DESCRIPTION AND OPERATION
The air conditioning system is a recirculating air system. The major items
include: evaporator, condenser, compressor, blower, switches and temperature
controls.
The evaporator is located behind the left rear side of the baggage com­
partment. This cools the air that is used for air conditioning.
The condenser is mounted on a retractable scoop located on the bottom of
the fuselage and to the rear of the baggage compartment area. The scoop extends
when the air conditioner is ON and retracts to a flush position when the system
is OFF.
The compressor is mounted on the forward right underside of the engine. It
has an electric clutch which automatically engages or disengages the compressor
to the belt drive system of the compressor.
An electrical blower is mounted on the aft side of the rear cabin panel.
Air from the baggage area is drawn through the evaporator by the blower and
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distributed through an overhead duct to individual outlets located adjacent to
each occupant.
The switches are located to the left of the the throttle
temperature control is located on the right side of the instrument panel. The
temperature control regulates the desired temperature of the cabin. Tu' r n the
control clockwise for increased cooling, counterclockwise for decreased cooling.
Located to the left of the the thrortle quadrant is the fan speed switch and the
air conditioning ON-OFF switch. The fan can be operated independently of the
air conditioning. However, it must be on for air conditioner operation. Turning
either switch off will disengage the compressor clutch and retract the condenser
door. Cooling air should be felt within one minute after the air conditioner is
turned on.
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The FAN switch aJlows operation of the fan with the air conditioner turned
OFF to aid cabin air circulation if desired. A LOW or HIGH flow of air can be
selected to the air conditioner outlets located in the overhead duct. The outlets
can be adjusted or turned off by each occupant to regulate individual cooling
effect.
ISSUED:
December
If the system is not operating in 5 minutes, turn the
system OFF until the fault is corrected.
22, 2017
SECTION9
SUPPLEMENT 1
quadrant
and the
REPORT: VB-2749
5 of 6, 9-7