Initial Start Up - Scotsman MCM1462 Service Manual

MCM1462
INITAL START UP
1. Remove the front panels by removing screws at
the base and pulling out.
2. Remove two screws and the control box cover.
3. Check that the two switches on the control box,
the ICE-OFF-WASH rocker switch and the
COMPRESSOR ON-OFF toggle switch are in the
OFF position.
4. OPEN the water supply line shut off valve.
5. 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 start the
timer. The timer starts when the actuator arm on
the microswitch drops off outer cam into cam slot.
See "Front View of Timer".
6. Move the ICE-OFF-WASH rocker switch, to the
ICE position.
7. 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 is overflowed
through the stand pipe. This continues through the
harvest cycle (about 3 and a half minutes). When
the freeze cycle is started, the timer and relay will
close the water inlet solenoid valve and the water
fill cycle is complete. If the sump is not full, rotate
the timer once again to repeat the harvest cycle.
The water pump should be pumping water through
the tygon tubes up to the water distributor at the
top of each evaporator plate, where water is
uniformly dispensed and cascades down both
sides of the evaporator plates and drains back into
the sump assembly for recirculation.
8. When the sump has filled, move the compressor
ON-OFF toggle switch, to the ON position.
9. 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. The first cycle will be
the longest, after that freezing time will range
between 12 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.
FRONT VIEW OF TIMER
ACTUATOR
BUTTON
CAM
FREEZE
PORTION
CONTROL BOX
April, 1993
Page 8
MICROSWITCH
HARVEST
PORTION
CUBE SIZE
CONTROL
TIMER