A/C System

AIR CONDITIONING SYSTEM
The A/C system uses a 1OPA17 fixed displacement compressor. A label identifying the use of R-134a refrigerant is located on the compressor.

CAUTION: DO NOT use an R-12 compressor on an R-134a system. The systems are not compatible.

The air conditioning system has an evaporator to cool and dehumidify the incoming outside air prior to blending with the heated air. The compressor is in operation during the FLOOR/DEFROST mode, DEFROST mode and when the A/C button is engaged. The compressor is not in operation at ambient temperatures below approximately -1 °C (30 °F). To maintain minimum evaporator temperature, a fixed pressure setting switch cycles the compressor clutch. The blower is operating in the heater or air conditioning systems, except in the OFF mode. In the OFF mode the blower and the outside air are shut off.

The Automatic Temperature Control (ATC) system lets the operator change the passenger compartment comfort conditions. A computer, built into the control panel, regulates the desired temperature, air flow direction and blower speed. The operator may also select an AUTO mode feature in which the computer would select the blower speed and air flow direction. Refer to the Owner's Manual for proper operation.