LANCE
II SERVICE
MANUAL
g. Couple flexible air duct and drain tube.
h. Make
and check electrical
connections.
(Refer to
Figure 14-15.)
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.
1442.
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
14-12.)
14-43. ELECTRICAL INSTALLATION.
The electrical system, routing
and component 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.
1444. ADJUSTMENT OF THROTTLE SWITCH (PA-32RT-300). 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.
Issued: 1/3/78 2 2 ACCESSORIES AND UTILITIES
2 L2
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