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Two common configurations in three-phase motor windings.

The Professor: Three-Phase Motor Voltage Unbalance

Troubleshooting an Overheating Compressor
May 6, 2013
By John Tomczyk
One Comment

Compressor overheating is usually caused from high compression ratios. High compression ratios can be caused from a combination of high condensing pressures (temperatures) and low suction (evaporating) pressures.


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Compressor discharge valve

The Professor: Compressor Superheated Discharge Temps

January 14, 2013
By John Tomczyk
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The compressor’s superheated discharge temperature can tell the service technician what is going on inside a refrigeration or air conditioning system. The compressor’s discharge temperature is a reflection of the hottest part of a refrigeration system, and there are limits as to how hot a discharge temperature should be.


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