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
ICE CHUTE
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
RESERVOIR
EXPANSION
VALVE
CONDENSER
DRAIN
TUBE
ICE LEVEL
COMPRESSORSENSORS
January 2007
Page 10
