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Thread: Compressor safety valve opens
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12-06-2010, 12:23 PM #1
Re: Compressor safety valve opens
PRADY,
I believe you're referring to the IPR (internal pressure relief valve) which is designed to open when the discharge to suction differential exceeds 450 to 550 psid.
Check for restrictions in the discharge line or an overcharged system.
Here's a link that will help you out.
http://www.hvacrinfo.com/ae_index.htm
section 4-1329.Thousands of HVACR manufacturers links! Visit: www.hvacrinfo.com
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