Ml 114 AIR-CONDITIONING SYSTEM OPERATION

TM 9-2320-387-24-l l-29. Ml 114 AIR-CONDITIONING SYSTEM OPERATION The air-conditioning system covered in this manual applies only to the Ml114 vehicle and consists of the following major components: 0 ^A 0 ^B 0 ^C 0 ^D 0 ^E 0 ^F 0 ^G DISCHARGE LINE - High-pressure gas is carried through the discharge line from the compressor to the condenser. COMPRESSOR - Inside the compressor, low-pressure gas refrigerant is compressed into a high-pressure gas that is pushed into the condenser by the compressor. SUCTION LINE - Refrigerant, in low-pressure gas form, is drawn from the evaporator by the suction action of the compressor. EXPANSION VALVE - High-pressure liquid refrigerant enters a nonadjustable expansion valve where the refrigerant is formed into a liquid spray. EVAPORATOR - Refrigerant enters evaporator as a liquid spray. It absorbs heat from the air in the crew compartment and vaporizes into a low-pressure gas. LIQUID LINE - High-pressure liquid refrigerant is carried back to the evaporator by the liquid line to repeat the evaporation/condensation cycle. CONDENSER - Refrigerant enters the condenser as a high-pressure gas. When condensed, it gives up its heat to the outside air and becomes a high-pressure liquid. P B 1 . : ‘. ; ; : ., : : ., : : : ‘_ . . ; ~ ,. : : : : . . - ,. . . . : : f : : _. 1 * : : ‘_ :. :, : . . ‘... COMPRESSOR LOW-PRESSURE GAS - HIGH-PRESSURE GAS - HIGH-PRESSURE LIQUID I REAR FRONT EVAPORATOR AND HEATER CORE CONDENSER l-39