Air Conditioning: Notes

Fig 1: Locating Air Conditioning Main Components

Courtesy of VOLVO CARS CORPORATION

There are five main components in the climate control system:

evaporator
receiver
compressor
condenser
throttle valve.

The system is filled with a suitable quantity of refrigerant and oil. The role of the oil is to lubricate and seal the compressor (piston and cylinder). A fluorescent leak-tracing agent is added to the refrigerant. This makes it possible to trace leaks using UV light.

In vehicles with the B418S11 engine the compressor is located on the rear edge of the engine. In vehicles with other engine variants the compressor is located on the front edge of the engine.