TM 5-3610-257-14
5-3.4.
Electrical System. Provides power to various systems.
a.
Sink thermostat. Controls temperature of water in sink. Monitors water temperature through a liquid-filled copper
element connected to a diaphragm. The diaphragm operates contacts which energize the heater or open solenoid valve in
the refrigeration system.
b.
Cabinet thermostat. Controls the temperature in the refrigeration cabinet. Activates the solenoid valve in the
refrigerant line to allow liquid refrigerant to flow to the cabinet evaporator.
c.
POWER switch. Master switch for the sink. With the switch on, the compressor starts and power is supplied to
the SINK, CABINET, and S19 WATER PUMP switches.
d.
SINK switch. Supplies power to the faucet pump and activates the sink thermostat. A pressure sensing switch
controls the faucet pump.
e.
CABINET switch. Activates the cabinet thermostat to maintain a preset temperature, and turns on cabinet fan.
f.
S19 WATER PUMP switch. Activates the recirculating water pump.
5-6
