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NME454, 654 & FME504, 804
COMPONENT DESCRIPTION
Control Box: Contains the electrical controls that
operate the machine.
High Pressure Cut Out Switch: An automatic
reset switch sensing the high side refrigeration
pressure. It is set to shut the machine off if the
discharge pressure should ever exceed 450 PSIG.
Low Pressure Cut Out Switch
An automatic reset control that shuts off the ice
machine when the low side pressure drops below
a preset point, 15 PSIG.
Compressor: The refrigerant vapor pump.
Reservoir: Float operated, it maintains the water
level in the evaporator at a constant level, it also
contains the water level sensor.
Water Level Sensor: Senses if there is water in
the reservoir to make ice out of. Will shut the
machine off it there is no
water.
Ice Discharge Chute:
Directs the ice produced by
the evaporator into the
storage bin.
Ice Level Sensor: An
electronic "eye", it senses the
presence of ice in the bottom
of the ice discharge chute.
Operates to turn the ice
machine on and off
automatically as the level of ice in the bin changes.
Gear Motor: An oil filled, speed reduction
gearbox, driving the auger.
Condenser: Air or water cooled, where the heat
removed in ice making is discharged.
Expansion valve: The refrigerant metering device.
CONDENSER
ICE CHUTE
COMPRESSOR
January 2007
Page 10
AIR COOLED
CONTROL BOX
EXPANSION
VALVE
ICE LEVEL
SENSORS
RESERVOIR
DRAIN
TUBE
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