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SECTION 9 - SUPPLEMENTS
SUPPLEMENT 7
NORMAL PROCEDURES
BEFORE TAKEOFF
1. AIR CONDITIONING Switch . . . . . . . . . . . OFF or VENTILATE
Refer to Section 5, Performance, Figure 5 - 8, Maximum Engine
Torque For Takeoff, for takeoff torque settings.
IN FLIGHT (CRUISE, CLIMB, AND DESCENT)
Initially, it may be desirable to operate the system with the air
conditioner fans on HIGH for fast cool-down. Later in the flight,
operation of the fans on LOW speed and opening of the overhead vent
air controls may be more comfortable.
During extended flight when temperature and humidity are extremely
high, the evaporator coils may frost over. Normally, the compressor
cycles off when temperatures in the evaporators nears 32°F (0°C). If
frost does form as evidenced by reduced cooling airflow, turn the AIR
CONDITIONING Switch to VENTILATE and select the HIGH speed AC
FANS position. This should increase evaporator discharge temperature
sufficiently to clear the frost.
A high-pressure safety switch in the air conditioning system
disengages the compressor clutch and stops system
operation in the event the system becomes overloaded.
The system will cycle on again when the pressure reduces.
However, if cooling ability cannot be restored within a
reasonable
malfunctioning and should be turned off.
The blower portion of the system may be used anytime air circulation
(outside or cabin air) is desired. This is accomplished by placing the
AIR CONDITIONING Switch in the VENTILATE position and placing
the AC FANS Switches in LOW or HIGH positions as desired.
U.S.
S7-10
(Continued)
(if takeoff torque is below 2397 ft-lbs)
NOTE
amount
of
time,
MODEL 208B 867 SHP
GARMIN G1000
the
system
may
FAA APPROVED
208BPHCUS-S7-00
CESSNA
be
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