Ice-O-Matic ICEU070A installation manual Operational Checks

ICEU070A

Operational Checks

E. The unit now starts its first freezing cycle with the following components in operation:

￿Compressor

￿Water Pump

￿Fan Motor

F.Look through the ice discharge opening and confirm that the spray system is correctly seated and that the water jets uniformly reach the interior of the inverted cup molds; also make sure that the plastic curtain is hanging freely and excessive water is not flowing through it.

G.During the freeze cycle, the evaporator will remove heat from the water sprayed into the ice making molds and warm air will be discharged from the cabinet.

H.When the evaporator temperature reaches a preset value the evaporator thermostat or cube size control changes its contacts; the freezing cycle ends and starts the defrost or harvest cycle.

Freezing time will range between 20 and 22 minutes in a 70oF ambient temperature. Longer time for temperature above, shorter when below. Average complete cycle range is about 23 to 25 minutes.

I. Check, during the first defrost/harvest cycle, that the incoming water flows correctly into the sump to re-fill it and the surplus overflows through the overflow drain tube.

J. Check the size and shape of the ice cubes just released. Right size must have a small depression about 3/16” in their crown. If not, wait for the second defrost/harvest cycle before performing any adjustment.

K. If required, adjust the length of the freezing cycle by turning the knob of the cube size control or evaporator thermostat located in front of the control box until the correct ice cube size is achieved.

If the ice cubes are shallow and cloudy, it is possible that the ice maker runs short of water during the end of the freezing cycle or, the quality of the supplied water requires the use of an appropriate water filter or conditioner.

L. During the defrost or harvest cycle hold a handful of ice cubes against the bulb of the storage bin thermostat; the ice machine switch OFF in about one-two minutes.

Remove the ice from the storage bin thermostat. The ice maker should restart automatically in three-four minutes.

NOTE. The bin thermostat is factory set at 1oC (35oF) OUT and 4oC (39oF) IN.

M. Re-attach the front panel, then instruct the owner/user on the general operation of the ice machine and about the cleaning and care it requires.

Small

Indent

Normal Size and Shape

Shallow Cube

Cube too Small

Thick Bulge

Oversized

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