INITIAL START UP
Ice Maker:
1. Remove front panel by pulling out to unsnap.
2. Remove two screws and the control box cover.
3. Remove the evaporator cover.
4. Remove the left side service panel.
5. Check that the ON/WASH/OFF rocker switch
and the Compressor ON-OFF toggle switch are in
the OFF position, on the control box.
6. OPEN the water supply line shut off valve.
7. Inside the control box is the shaft of the timer
and the switch assembly. Rotate the shaft of the
timer and switch assembly clockwise to where the
actuator arm on the microswitch drops off outer
cam into cam slot. See Timer Cam Positions.
8. Move the ON/WASH/OFF rocker switch to the
ON position.
9. Observe water fill cycle: Water pump operates
and water inlet solenoid valve OPENS, incoming
water flows from the valve through the tubing, the
reservoir fills and excess water drains out the
machine drain. At the end of the harvest cycle, the
water inlet solenoid valve will close and the water
fill cycle is complete. If the reservoir is not full,
advance the shaft of the timer clockwise into a new
harvest cycle; this opens the water valve again.
The water pump forces water from the reservoir up
to the water distributor at the top of each
evaporator plate, where water is uniformly
dispensed, cascades down both sides of the
evaporator plate and drains back into the reservoir
for recirculation.
10. Check that the water cascades down over
each cube mold and into the reservoir.
11. When the reservoir is full, move the
compressor ON-OFF switch, to the ON position.
12. Check operation of the freezing cycle: The
compressor is operating.The icemaking process
begins; feeling the metal parts of the evaporator
plate reveals cold temperature, very shortly ice
begins to form. Tubing will become frosted at the
top of the evaporator plate. Freezing time will
range between 13 and 15 minutes. Longer time for
temperatures above 70 degrees F. and shorter
time required when temperatures are below
70-degrees F. Average complete cycle time is
about 16 minutes.
13. Warm water should begin to flow from the
condenser drain.
Note: To optimize the balance between ice
production and water use, the water cooled
discharge pressure must be 220 P.S.I.G. Check
the discharge pressure and adjust the water
regulating valve to obtain 220 P.S.I.G. pressure.
14. Check CUBE SIZE
The dimensions of the cubes are fixed by the size
and shape of the molds on the evaporator plate,
except that the thickness of the cube MAY need to
be adjusted at start up. There is only one size of
cube that is correct; adjusting the cube size control
to that size of cube will allow the ice maker to
produce ice at its most efficient size. The correct
size cubes will be fully formed at the edges; will
harvest off of the evaporators beginning with
individual cubes at the top of the evaporator, then
vertical strips for the balance; and will appear
similar to the illustration for “Correct Size Cube”.
TIMER CAM POSITIONS
MICROSWITCH
ACTUATOR
CAM &
SHAFT
HARVEST
PORTION
FREEZE
PORTION
CMS1002W
September, 1993
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