Date: Sat, 30 Jul 2005 19:00:08 GMT
From: David Taylor <>
Subject: Re: 1992 saab 900s conv 2.1 ac problem

> Quantity of refrigerant is generally ascertained by measuring the low > side pressure when the compressor is operating. No, quantity is best measured from a known starting point, i.e. 0 and then adding it by weight. Saab (and everyone else) list the charge by weight, not by the low pressure gauge reading. David.

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