Piper Cherokee Arrow II Pilots Operating Manual page 44

ARROW I1
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 distributed through an
overhead duct to individual outlets located adjacent to each occupant.
The switches and temperature control are located on the lower right side of the instrument
panel in the climate control center panel. The temperature control regulates the desired
temperature of the cabin. Turn the control clockwise for increased cooling, counterclockwise
for decreased cooling.
Located inboard of the temperature control i s the fan speed switch a n d t h e a i r
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.
NOTE
If the system is not operating in 5 minutes turn the system
"OFF," until the fault is corrected.
The "FAN" switch allows operation of the fan with the air conditioner turned "OFF" to
aid cabin air circulation if desired. A "LOW," "MED" 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 obtain individual cooling effect.
The condenser door light is located to the left of the radio stack in front of the pilot. The
door light illuminates and remains on when the door is open or extended. The light is off when
the door is retracted.
A circuit breaker located on the circuit breaker panel protects the air conditioning
electrical system.
Whenever the throttle is in the full throttle position, it actuates a micro switch which
disengages the compressor and retracts the scoop. This is done to obtain maximum power and
maximum rate of climb. T h e fan continues to operate and the air will remain cool for
approximately one minute. When the throttle is retarded approximately
114
inch, the clutch
will engage and the scoop will extend, again supplying cool, dry air.
PIPER EXTERNAL POWER*
An optional starting installation known as Piper External Power (PEP) is accessible through
a receptacle located on the right side of the fuselage aft of the wing. An external battery can be
connected to the socket, thus allowing the operator to crank the engine without having to gain
access to the airplane's battery.
*Optional Equipment
I
AIRPLANE AND SYSTEMS
REVISED:
JUNE
27,1975