COMPONENT DESCRIPTION
Control Box: Contains the electrical controls
that operate the machine.
High Pressure Cut Out Switch: A manual
reset switch sensing the high side refrigeration
pressure. It is set to shut the machine off if the
discharge pressure should ever exceed 400
psig. On older models (up to late 1990
production) the reset switch light would also
come on.
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.
AIR COOLED
CONTROL BOX
CONDENSER
EXPANSION
VALVE
RESERVOIR
ICE CHUTE
COMPRESSOR
ICE LEVEL
SENSORS
DRAIN
TUBE
WATER COOLED
CONTROL BOX
CONDENSER
EXPANSION
VALVE
RESERVOIR
ICE CHUTE
ICE LEVEL
SENSORS
HIGH
PRESSURE
CUT OUT
NM650
January, 1991
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