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Causes of low suction pressure (pressure gauge) in air energy heat pumps

Published on:

2023-04-20

Cause of failure: The main reason is that the fins of the surface cooler are dirty, the fan exhaust is not smooth, the refrigerant is insufficient and leaked, the refrigerant system is blocked, or the opening of the expansion valve is small.

Approach:

Clean the surface cooler ;

Repair fans, remove obstructions ;

Leak detection, leak repair and refrigerant addition ;

Check for clogged fittings and replace, adjust expansion valve.

The high discharge pressure or low suction pressure depends on engineers and maintenance personnel to find out in advance. When the high pressure and low pressure alarms are not reached, there will be some precursory phenomena for observation, such as insufficient water flow, heat exchanger Scaling, etc., through early prediction to deal with high pressure and low pressure conditions in advance.