COMPRESSOR ENGAGEMENT DESCRIPTION

Automatic Air Conditioning

Description

The special button on the climate control system in the centre of the dashboard switches on the air cooling and dehumidification circuit, activating the air conditioning compressor.

The above button enables operation of the air cooling circuit, but actual compressor activation is also dependent upon activation of:

• the frost thermostat sensor, located near the evaporator, which stops the engagement of the air conditioning if the temperature of the evaporator is too low;
• the fan linear sensor, located on the coolant circuit that locks air conditioner activation if coolant pressure is too low or high;
• the engine control unit that excludes compressor operation in accordance with engine management mode; e.g. in the case of high engine temperatures or high engine load (sudden acceleration).