TM 10-7310-282-10
0003 00
20 Cubic Foot Refrigerator
Capacity ............................................................................................................................20 Cu ft (0.57 m3)
Width ........................................................................................................................................ 26 in (66 cm)
Length ............................................................................................................................... 35 in (90.2 cm)
Height .............................................................................................................................. 82 in (208.9 cm)
Weight (empty) ..................................................................................................................... 210 lb (95.5 kg)
Refrigerant ........................................................................................................................................ R-134a
Electrical requirements ....................................................................................................................115VAC
The 20 cubic foot refrigerator (1) is a single door unit employing a conventional air cooled refrigeration
system. In this system, refrigerant gas is taken into a compressor and discharged at high pressure into
an air cooled condenser. Heat is removed from the refrigerant in the condenser and dissipated into the
air. The refrigerant cools enough in the condenser to liquefy. Liquid refrigerant is conducted to a
metering device, which sprays liquid refrigerant into the evaporator. The evaporator operates at much
lower pressure than the condenser, and the refrigerant flashes off into gas, absorbing heat in the
process. The warm gas exiting the evaporator is then returned to the compressor to begin the cycle
again.
A thermostat monitors the cabinet temperature, and cycles the refrigeration system on and off as
required. The thermostat is adjustable, but does not normally require any adjustment.
The 20 cubic foot refrigerator may be equipped with an electric defrost system, incorporating a timer and
an electric heating grid attached to the evaporator. The timer can be set to operate the defrost grid at any
time desired. Models without an electric defrost system rely on the cabinet air to defrost the evaporator
when the refrigeration system has cycled off.
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