For Cooling (Refer to Figure 1, Page 2)
I.
Turn the selector switch to the "LOW COOL" or
A.
"HIGH COOL" position.
Rotate the thermostat (temperature control) to the
B.
position that is the most comfortable to you. The
thermostat will turn the compressor on when the
temperature of the air entering the air conditioner
rises a few degrees above the setting you have
selected. When the temperature of the air entering
the air conditioner drops below the selected setting,
the thermostat will turn the compressor off. The air
conditioner, while in the cooling mode, will continue
to cycle the compressor on and off in the above
mentioned fashion until the selector switch is turned
to another mode of operation.
C.
Position the louvers to the desired direction the
discharge air is to flow.
II.
Operation During Cooler Nights (Cooling
Operation)
It is important, when the outdoor temperature drops in the
evening or during the night to below 75 degrees F, that the
thermostat (temperature control) be set at a midpoint between
"Warmer" and "Cooler". If the setting is at "cooler", the
cooler (evaporator) coil may become iced-up and stop
cooling. During the day when the temperatures have risen
75 degrees F, reset the thermostat switch to the desired
setting.
Should icing-up occur, it is necessary to let the cooling
(evaporator) coil defrost before normal cooling operation is
resumed. During this time, operate the unit in the "HIGH
FAN" position with the system at maximum air flow. When
increased or full air flow is observed, the cooling coil should
be clear of ice.
III.
Short Cycling
When an air conditioner is in operation, its compressor
circulates refrigerant under high pressure. Once off, it will take
two to three minutes for this high pressure to equalize.
The air conditioning compressor is unable to start against high
pressure. Therefore, once the air conditioner is turned off, it is
important to leave it off for two to three minutes before
restarting.
Short cycling the compressor (or starting it before pressures
SECTION III - OPERATION
NOTE
have equalized), will in some instances, kick the circuit breaker
or overload.
For Heating (Refer to Figure 1, Page 2)
IV.
The heat pump will operate on reverse cycle refrigerant
heating at outdoor temperatures above freezing. When the
outdoor temperature is below freezing, the heat pump
compressor will shut down to prevent outdoor coil freeze-up.
At this time, the optional electric resistance heater will be
utilized to take the chill out of the indoor air. The electric
resistance heater is not a substitute for a furnace at these low
outdoor temperatures.
A.
Turn the selector switch to the "HIGH HEAT"
position. At "HIGH HEAT", the fan operates on
high speed with heat output at maximum.
B.
Rotate the thermostat (temperature control) switch to
the position that is the most comfortable to you. The
thermostat will turn the compressor/heater on when
the temperature of the air entering the air
conditioning unit drops below this setting a few
degrees, and automatically turns off when the
temperature of the air entering the air conditioner
rises a few degrees above this setting. The
compressor/heater will continue to cycle on and off in
this fashion until the selector switch is turned to
another mode of operation.
Position the louvers to the desired direction the
C.
discharge air is to flow.
Discharge air temperature can be controlled to some
extent by opening or closing the louvers. When the
louvers are closed, the warmest localized discharge
air is achieved. Fully opened louvers will throw the
warm discharge air to the back and front of the
vehicle for more efficient circulation and faster warm-
up. Although the air temperature is lower with the
louvers fully opened, the heating capacity is still the
same.
V.
For Air Circulation Only (Refer to Figure 1,
Page 2)
A.
Turn the selector switch for "LOW FAN" or for
maximum air flow, to "HIGH FAN".
Position the louvers to the desired direction the
B.
discharge air is to flow.
3
NOTE