Head Pressure Problems?

The use of a troubleshooting flowchart or table is beneficial to the service technician as a reminder of the various causes for certain symptoms.

Some 5-ton and smaller compressors are equipped with an internal pressure relief valve. It relieves at a discharge and suction differential of 450 psi. The valve will not re-seat until the compressor is stopped and system pressures equalize.

This is an excerpt from the Technical Institute Manual 2 of the Refrigeration Service Engineers Society. For more information visit the online store at RSES.ORG

1 thought on “Head Pressure Problems?”


    It is verry Helpfull, another idea for me thanks to RSES. Pls! post another 🙂

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