PIPER
CHEROKEE
SIX SERVICE
MANUAL
g. Couple flexible air duct and drain tube.
h. Make and check electrical
connections. (Refer to Figure
13-15.)
i. Check operation of blower and refrigerant systems.
j. Install
rear bulkhead panels. Be
certain to seal. (See NOTE.)
WARNING
Whenever it is necessary
to remove and replace
the rear cabin
panel, it
should be replaced and sealed
in the original manner
to prevent exhaust
from entering the cabin.
After removing
and replacing the
rear panel, conduct a carbon
monoxide test
on the ground and in flight with and without the air
conditioner
operating. Presence
of CO shall not exceed
one
part in 20,000.
13-42. PRESSURE RELIEF SWITCH
(Ranco). The pressure relief switch
automatically
prevents
the system from over pressurization
by breaking the electrical circuit
to the
magnetic clutch, stopping the compressor until pressure is reduced. The switch is located in
the line between the receiver and expansion valve.
NOTE
Before the relief switch is removed, the air conditioning
system must be discharged. (See Paragraph 13-12.)
13-43. ELECTRICAL INSTALLATION. The electrical system. routing and components are
installed
and routed in the conventional aircraft
manner. The wiring harness is connected
to
switches in the climate
control center on the right side
of the instrument panel. The
harnesses cross the instrument panel
to the left side where two (2) wires
are taken off for
the compressor clutch. The harness then passes aft along the left side of the fuselage where
it connects to the blower motor, pressure
relief switch and the condenser
actuating motor.
13-44. ADJUSTMENT
OF THROTTLE SWITCH.
The throttle switch is mounted forward
and below the
throttle arm. The switch must be adjusted
so it will actuate at the last quarter
inch of full open throttle travel.
The switch
should be positioned so the throttle
arm contacts the center of the switch
actuator button.
ACCESSORIES AND
UTILITIES
Revised: 8/14/73
3H18
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