||The compressor circulates refrigerant through the air-conditioning system. Axial piston compressors are one of the most common types used.
|Condensers & evaporators
||The condenser transfers heat from the refrigerant to the outside air. The evaporator draws heat from air in the passenger compartment.
||The receiver drier acts as a storage volume for liquid refrigerant. It also contains filters and desiccants.
|Lines & hoses
||Hoses and pipes must be capable of withstanding the high pressures and temperatures that are found in the air-conditioning system.
|TX valve construction
||The thermal expansion valve controls the amount of refrigerant entering the evaporator coils. It also causes a drop in pressure without causing a change of state.
|Temperature monitoring thermostat
||The thermostat monitors the temperature of the evaporator fins and controls system operation within set limits.
||The refrigerant is used to absorb, transfer and release heat in the air-conditioning circuit.
||Pressure switches protect the system from excessively high or low pressures.|
||Most vehicles contain a heated rear window When the rear demister switch is turned on, electrical current flows through the wire causing it to heat.