Refrigeration Question

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Anonymous Poster #1	Refrigeration Question 10/13/2012 8:11 AM
	why do we need lub oil differential pressure switch in referigeration compressor as a safety why we do not use a simple lub oil low pressure trip. please any one can answer
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Tornado Guru Join Date: May 2009 Location: Richland, WA, USA Posts: 21017 Good Answers: 795	#1 Re: refrigeration 10/13/2012 11:50 AM
	The net oil pressure must be compared to the suction or discharge pressure (depending on compressor type), not to atmospheric pressure. __________________ In vino veritas; in cervisia carmen; in aqua E. coli.
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lyn Guru Join Date: Oct 2008 Posts: 42355 Good Answers: 1693	#2 In reply to #1 Re: refrigeration 10/13/2012 12:46 PM
	Another fine response.
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