S1800 Marine Model Ice Machines – Service Manual - Manitowoc Ice
S1800 Marine Model Ice Machines – Service Manual - Manitowoc Ice
S1800 Marine Model Ice Machines – Service Manual - Manitowoc Ice
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Section 7 Refrigeration System<br />
Sequence of Operation<br />
SELF-CONTAINED WATER -COOLED MODELS<br />
DRIER<br />
HEAT<br />
EXCHANGER<br />
HIGH PRESSURE VAPOR<br />
COMPRESSOR<br />
Section 7<br />
Refrigeration System<br />
RECEIVER<br />
(WATER COOLED ONLY)<br />
HIGH PRESSURE LIQUID<br />
EXPANSION VALVE<br />
HOT GAS SOLENOID VALVE<br />
STRAINER<br />
LOW PRESSURE LIQUID<br />
EVAPORATOR<br />
AIR OR WATER<br />
CONDENSER<br />
LOW PRESSURE VAPOR<br />
SV1569<br />
Figure 7-1. Self-Contained Prechill and Freeze Cycle<br />
Prechill Refrigeration Sequence<br />
Freeze Cycle Refrigeration Sequence<br />
No water flows over the evaporator during the prechill. The refrigerant absorbs heat from water running over the<br />
The refrigerant absorbs heat (picked up during the evaporator surface. The suction pressure gradually<br />
harvest cycle) from the evaporator. The suction pressure<br />
decreases during the prechill.<br />
drops as ice forms.<br />
Part Number 80-1634-3 7-1<br />
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