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air cond question

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Old Sep 13, 2012 | 12:40 PM
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dh1978
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air cond question
does anyone know the positions of the high and low pressure stems that are located at the hi/los pressure valves? i believe there are three positions: charge,regular oper, and closing off system, but im not sure and not sure about which way to turn stem. any help would be welcomed..thanks
 
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Old Sep 13, 2012 | 09:26 PM
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Turning the fittings all the way in is for servicing or removing the compressor. All the way out is for using the a/c. As for charging most systems that I service I have the fittings all the way out.
 
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Old Sep 13, 2012 | 10:01 PM
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thanks, i will give it a try.
 
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Old Sep 13, 2012 | 10:18 PM
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There are three positions front seated, back seated and cracked. They are called king valves you can google king valve to see the positions.
 
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