Emerson Copeland Scroll ZH04K1P Manual page 34

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Condition

System design

load too small

Low suction

Inadequate

pressure

refrigerant

going to the

evaporator

Noise during shut-

Anti-reverse

off

device

C6.2.26/1013-1116/E

Cause

If the compressor is running in a tandem or in parallel,

modulate the running process.

Lower normal discharge pressure values can lead to

insufficient refrigerant flow to the system.

This can also be verified by checking the evaporator

outlet superheat, if it is found unusually high. Check the

selection of the expansion valve (likely undersized).

This does not have any effect on the durability of the

compressor, no action is necessary.

Corrective action

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