86 Part Number 80-01111-9 7/10
SM50
INITIAL START-UP OR START-UP AFTER
AUTOMATIC SHUT-OFF
Sequence of Operation
Bin thermostat and the optional drain pump safety
switch must be closed before the ice machine will
start.
1. Initial Start-up or Start-up After Automatic
Shut-off – Water Fill
Before the compressor starts, the water pump, water
inlet valve and hot gas valve are energized for about 3
minutes.
2. Refrigeration System Start-up
The compressor starts after the water fill, and remains
on throughout the Freeze and Harvest cycles. The hot
gas valve remains on for 5 seconds during initial
compressor start-up and then shuts off.
At the same time the compressor starts, the
condenser fan motor (air-cooled models) is supplied
with power. The condenser fan motor will remain
energized during the entire freeze cycle.
3. Freeze
The water pump sprays water into the inverted cups.
The water freezes layer by layer, until an ice cube
forms in each cup. The control system monitors the
temperature of the refrigeration system liquid line to
determine the length of the freeze cycle.
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