Manitowoc CMS050A004 Especificaciones descargar pdf (Pagina 52)

HOT GAS VALVE

General

The hot gas valve is an electrically operated valve that

opens when energized, and closes when de-energized.

Normal Operation

The valve is de-energized (closed) during the freeze

cycle and energized (open) during the harvest cycle.

The valve is positioned between the receiver and the

evaporator and performs two functions:

1. Prevents refrigerant from entering the evaporator

during the freeze cycle.

The hot gas valve is not used during the freeze

cycle. The hot gas valve is de-energized (closed)

preventing refrigerant flow from the receiver into

the evaporator.

2. Allows refrigerant vapor to enter the evaporator in

the harvest cycle.

During the harvest cycle, the hot gas valve is

energized (open) allowing refrigerant gas from the

discharge line of the compressor to flow into the

evaporator. The heat is absorbed by the

evaporator and allows release of the ice slab.

Exact pressures vary according to ambient

temperature. Harvest pressures can be found in the

“Cycle Time/24 Hour Ice Production/ Refrigerant

Pressure Charts in this book.

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Manitowoc CMS050A004 Especificaciones Pagina 52