SAFARI

15 AIR CONDITIONING CHAPILLARY TUBE EQUALIZER CIRCUIT IN CASE INTERNAL AQUALIZER TYPE VALVE EQUALIZER PIPE HEAT SENSITIZING TUBE INLET DIAPHRAGM CHAMBER DIAPHRAGM OUTLET PRESSURE SPRING Receiver / dryer This component acts as a storage device for liquid refrigerant. It also contains a filter and a desiccant which is a material that absorbs moisture from the A.C. system. Expansion Valve This small valve controls the flow of refrigerant into the evaporator. It is controlled by a temperature sensor at the evaporator outlet. If the outlet temperature is too high, it means not enough refrigerant is flowing into the evaporator and poor passenger cooling will result. If the outlet temperature is too cool, it means too much refrigerant is flowing and the evaporator fins will probably load up with ice. In either case, the feed-back temperature sensor opens or closes the expansion valve opening to achieve the correct flow rate and evaporator outlet temperature. Evaporator The last component in the cycle, and where we finally get around to cooling air. As the foggy mist of refrigerant enters, the air passing over the evaporator fins gives up its heat to evaporating refrigerant. At the inlet the refrigerant is liquid and at the outlet it has changed into gas. Fig. 11 - Expansion valve Fig. 10 - Receiver / dryer Fig. 12 - Evaporator