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is done by adjusting the blend-air door with the On air conditioned vehicles, ambient air intake can be shut off by closing the recirculating air door. This send refrigerant through the evaporator, and will re- SIDE WINDOW DEMISTERS The side window demisters direct air from the heater assembly. The outlets are located on the top ENGINE COOLING SYSTEM REQUIREMENTS To maintain the performance level of the heating/ air conditioning system, the engine cooling system The use of a bug screen is not recommended. Any obstructions in front of the radiator or condenser can Fig. 2 Fixed Displacement Compressor—Model TR105 Fig. 3 Fixed Displacement Compressor—Model SD709P Fig. 4 Variable Displacement Compressor—Model 6C17 Fig. 5 Common Blend-Air Heater A/C System 24 - 2 HEATING AND AIR CONDITIONING Ä |