Scotsman CME855A - Manual (Page 10)

INITIAL START UP
Ice Maker:
1. Remove screws and front panel.
2. Remove two screws and the control box cover.
3. Remove the evaporator cover.
4. Locate two toggle switches on the front of the
control box. Check that the Master ON/OFF switch
and the Compressor ON-OFF switch are in the
OFF position.
5. OPEN the water supply line shut off valve.
6. 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.
7. Move the Master ON/OFF switch to the ON
position.
8. 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
reservoir 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.
9. Check that the water cascades down over each
cube mold and into the reservoir.
10. When the reservoir is full, move the
compressor ON-OFF switch, to the ON position.
11. Check operation of the freezing cycle: The
compressor is operating. The ice making 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. After the first cycle,
freezing time will range between 10 and 17
minutes.
In moderate temperatures, CME855 average
complete cycle time is about 15 minutes, and
CME1000 average complete cycle time is about
12 minutes.
12. 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
CME855A & CME1000A
December, 1994
Page 10