TB-9-2510-251-13 HMMWV Operator and Field Maintenance, Installation & Parts Add-On-Armor Air Conditioning Download
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1-8 TB 9-2510-251-13 1-13. M998, M1025, M1037, AND M1097 AIR-CONDITIONING KIT SYSTEM OPERATION C The air-conditioning kits covered in this manual applies to the to M998 and M998A1; M1025, M1025A1, M1025A2; M1037; M1097, M1097A1, and M1097A2 HMMWV variants vehicles and consists of the following major components: COMPRESSOR - Inside the compressor, low pressure gas refrigerant is compressed into a high pressure gas that is pushed into the condenser by the compressor. DISCHARGE LINE - High pressure gas is carried through the discharge line from the compressor to the condenser. 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. LIQUID LINE - High pressure liquid refrigerant is carried back to the evaporator by the liquid line to repeat the evaporation/condensation cycle. RECEIVER-DRIER - The receiver-drier functions as a drier, refrigerant filter and temporary storage tank for refrigerant moving through the AC system. EXPANSION VALVE - High pressure liquid refrigerant enters a non-adjustable 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 patient compartment and vaporizes into a low pressure gas. SUCTION LINE -Refrigerant in low pressure gas form is drawn from the evaporator by the suction action of the compressor. A B D E F G H F