Air Conditioning: Notes

WARNING: This page is about a different car, the 2005 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.

The A/C refrigerant system is a clutch cycling orifice tube type. The system components include the following:

A/C compressor (19703)
A/C clutch disc and hub (19D786)
A/C clutch field coil (19D798)
A/C condenser core (19712)
A/C evaporator core (19860)
A/C suction accumulator (19C836)
connecting refrigerant lines

The refrigeration system operation is controlled by the following:

A/C evaporator core orifice (19D990)
evaporator air discharge temperature sensor (19C734)
A/C compressor pressure relief valve (19D644)
A/C pressure sensor (19D594)
low-charge protection switch (19E561)

The refrigerant system incorporates an A/C compressor controlled by an evaporator air discharge temperature sensor.

The evaporator air discharge temperature sensor senses the A/C evaporator core air discharge temperature to control A/C compressor operation. For additional information concerning the evaporator air discharge temperature sensor, refer to CONTROL COMPONENTS .

An A/C compressor pressure relief valve is installed in the A/C manifold and tube (19D734) to protect the refrigerant system against excessively high refrigerant pressures.

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