The thermostat consists of the following components:

These components electrically reduce the noise caused by system operation.

The electronic thermosensor is mounted at the The electronic thermosensor senses the temperature of the cool air from the A/C evaporator. The temperature signals are input to the thermostat unit. This information is compared by the thermounit. The results in output are used in order to complete the following actions:

These actions prevent A/C evaporator freeze up.

An A/C dual pressure switch is located on the A/C receiver/dryer or dehydrator.

The switch is normally closed. The switch will open the circuit to the A/C compressor clutch coil if the refrigerant pressure becomes too high or too low.