TM 10-4130-237-14
1-12.
MAJOR SYSTEMS
a .
Engine. The water chiller engine has two cylinders. The engine drives a fan mounted on the driveshaft. The fan
air-cools the condenser. Drivebelts on the fan hub drive the compressor and the water pump. The speed of the engine is
preset and governor controlled.
b. Refrigeration System. Processes refrigerant which cools the water.
(1) Compressor. Compresses and circulates refrigerant through the system.
(2) Condenser Coil. Air-cools gas refrigerant and changes it to liquid at high pressure.
(3) Fan. Draws outside air through the condenser coil to cool compressed refrigerant.
(4) Evaporator. Uses refrigerant to chill water.
c.
Water System. Water pump draws warm water from water source. It circulates water through the evaporator
where the heat in the water is absorbed.
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