Manitowoc MULTIPLEX 11M Especificaciones Pagina 58

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Multiplex Company, Inc.
Component Parts Workbook
35
00218011 Revision B (KAK) 31 July, 2000
Head Pressure Control (used on Remote Condensing units only)
Function of the head pressure control
As the evaporator discharge pressure drops when the outside temperature drops, gas will by-pass
the roof condenser and be metered into the receiver maintaining an adequate head pressure.
Failure of the head pressure control
A valve incapable of by-pass will effect the refrigeration unit when the outside temperature
drops below 60°F with little or no ice production.
A valve stuck in by-pass will cause high head pressure and effect the ice production capabilities
of the unit.
Notes:
R-12
R-502
Water Bath
Compressor
Condenser
Receiver
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