icetro IC-0170A, Руководство техника

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Sequence of Operation W U -010 0
Initial start-up or start-up after automatic shut-off
1. Pressure Equalization
Before the compressor starts the hot gas valve is energized
for 15 seconds to equalize pressures during the initial
refrigeration system start-up.
2. Refrigeration System Start-up
The compressor is energized after the 15-second pressure
equalization, and remains on throughout the entire Freeze
and Harvest Sequences. The hot gas valve remains on for 5
seconds during initial compressor start-up and then shuts
off. At the same time the compressor starts, the
condenser fan motor is energized throughout the entire
Freeze Sequence.
3. Prechill
The compressor is on for 30 seconds prior to water flow to
prechill the evaporator.
4. Freeze
The water pump starts after the 30-second prechill. An
even flow of water is directed across the evaporator and
into each cube cell, where it freezes. When sufficient ice
has formed, water contacts the ice thickness probe. After
approximately 5 seconds of continual water contact, the
Harvest Sequence is initiated.
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