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Dealing With an Inefficient Refrigeration Compressor
2017/09/06
September 4, 2017
Refrigeration service technicians often run service calls in which they find a compressor with a higher-than-normal suction pressure along with a lower-than-normal head pressure. Many times, the refrigeration equipment is still running, but the product temperature is too warm, which causes product quality and safety to suffer.
 
These calls are tough to handle because the compressor is still producing cooling but is not cooling to its rated capacity. In such cases, medium-temperature products will spoil quicker, and low-temperature products will not be frozen as solidly as they should be.
 
There are three main reasons a compressor will simultaneously have a higher-than-normal suction pressure with a lower-than-normal head pressure. They are:
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