Manitowoc UG018A, Руководство техника

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23
Operation
Sequence Of Operation
I
NITIAL START-UP
1. Water Inlet and Pressure Equalization
Turn the toggle switch to”ON” positon,the water fill
valve and harvest valve are energized, 300 seconds
later, the water fill valve is de-energized. 20seconds
after the harvest valve solenoid is energized, the
compressor is energized. 300seconds after the
compressor is energized, the harvest valve solenoid is
de-energized, the water pumpand the fan motor are
energized,machine goes into freeze cycle.
2. Freeze Cycle
The pump sprays water into the inverted cups. The
water freezes layer by layer, until an ice cube forms in
each cup.
When the”water temperature”is equal to or less than 2
? for more than 5 seconds, control will read the” liquid
line temperature” and dip switch setting , get the”
freeze postpone time” and “fan shut off time”.Board
will shut the Fan before the end of the freeze cycle to
assist harvest. When the ” freeze postpone time” has
elapsed, the harvest cycle is initiated.