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'91 940 r12->r134a

 
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Telespalla Bob

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Since: Apr 19, 2007
Posts: 15



(Msg. 1) Posted: Mon Jun 16, 2008 9:56 pm
Post subject: '91 940 r12->r134a Get Alert
Archived from groups: alt>autos>volvo (more info?)

Hi to all.
I have a 1991 940 with A/C retrofited to R134a.
Is it normal that the compressor continuously engages-disengages when
running, with a duty of 20-30 seconds ON and 5-10 seconds OFF?
The A/C systma has only the low pressure switch on receiver and a high
pressure security valve on bottom pipe.
Perhaps it requires more gas?
it would have charged about 1 Kg (35.27392 oz, 2.20462 lb)


many thanks.



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