Volvo RWD 700 Forum

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A/C pressure switch adjusting 700 1992

posted by  tanuki on  Wed Jul 20 12:44 CST 2005
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How can the pressostat switch on the accumulator/dryer can be adjusted from 25 to 20 psi, per several mentions in the A/C section? Converting to R134a, for instance.

Took mine off and can't see any way of adjusting same.

Thanks for any knowledge.
wk








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A/C pressure switch adjusting 700 1992

posted by  mcduck on  Wed Jul 20 13:26 CST 2005
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last visit: Sun Sep 9 11:47 CST 2012
[RELATED]

Remove the electrical connector; there's a screw between the terminals.








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A/C pressure switch adjusting 700 1992

posted by  tanuki on  Sat Jul 23 11:55 CST 2005
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After trudging through a couple of salvage yards in the 100 degree heat, found that only pre-1990 had the different connector (wide spaced) and an adjusting screw between them. Didn't have a large sample (6), but it seems us later owners, post 1989 don't have an adjustment. Please, someone tell me different.
Will have to go back and get the older type connector and splice it into the wiring harness, looks like.
wk








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A/C pressure switch adjusting 700 1992

posted by  aleekat on  Wed Jul 20 13:13 CST 2005
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last visit: Fri Oct 24 13:19 CST 2014
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I'm not sure. I converted my car last yr with a kit from Groton, and used the detailed instructions in the FAQs. Makes no mention of adjustment there. Mine has been working great ever since. Heat index today of 105.







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