Multiplex MB-8-1 - Ice Making Sequence of Operation

90 Part Number STH034 3/12
Ice Making Sequence of Operation
VERSION 1 ICE MACHINE R404A REFRIGERANT
INITIAL START-UP
1. Placing the power switch in the “ON” position and
the flush switch in the “ICE” position, will supply
water to the reservoir.
2. The reservoir fills with water, the low water switch
closes and the gear motor starts.
FREEZE CYCLE
3. After the gear motor runs for 60 seconds the
compressor will start. The gear motor,
compressor, condenser fan motor and low water
switch remain energized as the ice machine
makes ice. The water float valve will open and
close automatically to maintain the proper water
level.
AUTOMATIC SHUT-OFF
4. The infrared bin control senses ice for 6
continuous seconds and starts a 90 second delay
period, After the 90 second delay period, the
compressor stops. 90 seconds after the
compressor stops the gear motor will stop.
RESTART AFTER AUTOMATIC SHUT-OFF
The gear and fan motor energize for 60 seconds to
clear the evaporator of any remaining ice and to
provide short cycle protection. 60 seconds later the
compressor energizes, starting a freeze cycle.
DRAIN CYCLE IN THE “ON” POSITION
After the ice machine has run for 12 hours the ice
machine will stop making ice and start a drain cycle.
The drain cycle will remove minerals that have settled
in the bottom of the evaporator. The drain cycle lasts
approximately 20 minutes, after which the ice machine
control board automatically resumes ice making and
resets the 12 hour counter to zero.