A/C System - Manual

OPERATION
The A/C refrigerant system is a clutch cycling orifice tube type. The system components are:
- A/C compressor.
- A/C clutch.
- A/C condenser core.
- A/C evaporator core.
- suction accumulator/drier.
- connecting refrigerant lines.

The refrigeration system operation is controlled by the:
- A/C evaporator core orifice.
- A/C cycling switch.
- A/C compressor pressure relief valve.
- A/C pressure cut-off switch.

The refrigerant system incorporates an A/C compressor controlled by an A/C cycling switch.

The A/C cycling switch senses A/C evaporator core pressure to control A/C compressor operation.

An A/C compressor pressure relief valve is installed in the A/C manifold and tube to protect the refrigerant system against excessively high refrigerant pressures.

An A/C evaporator core orifice is installed in the A/C evaporator core inlet tube to meter the liquid refrigerant into the A/C evaporator core.






COMPONENTS
The climate control system heats or cools the vehicle interior depending on the function selector position and the temperature selected. Function selector position determines heating or cooling and air distribution. The temperature blend control setting determines air temperature.

The manual climate control components are used to:
- select air inlet source (outside or recirculated).
- select blower motor speed.
- select discharge air temperature (temperature blend).
- select discharge air location (defrost, panel, floor).
- select A/C compressor clutch operation.