and temperature drops, the water flow is reduced and finally shut-off. If it becomes necessary to change the
factory adjustment, use a wrench or a pin and turn the adjusting screw on top of the spring housing. See
Compressor The compressor is used to compress refrigerant vapor from the evaporator coil to high pressure gas
and discharge it into the condenser. Refrigerant enters the compressor through a suction service valve and
passes out through a discharge service valve. See Drawing #108-111, Sheets 1 thru 4. See Appendix 1 for
Condenser The condenser coil is used to remove heat and condense refrigerant gas to a liquid. The condenser
is water-cooled and is made of cupro nickel tubing enclosed within steel tubing. The inner tube carriers the
water and the outer, the refrigerant. See Drawing #105-006.
Filter Frier The filter drier is a small cylindrical throw-away type v
essel containing a drying chemical and a filter.
It absorbs moisture and traps foreign material from the refrigerant as it leaves the condenser on its way to the
expansion valve. See Drawing #117-001.
Evaporator The evaporator coil consists of an aluminum housing that contains circuits of parallel staggered
copper tubes expanded into aluminum extended surfaces. The vaporizing refrigerant flows through the
evaporator coil and absorbs heat from the air as it passes over the aluminum fins. The air is circulated by
means of a fan located above the evaporator. See Drawing #106-012.