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Adding 134a

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Dave H View Drop Down
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Joined: 11 Sep 2009
Location: Central IL
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Dave H Quote  Post ReplyReply Direct Link To This Post Topic: Adding 134a
    Posted: 15 Sep 2012 at 7:06am
I get the job of adding 134a to the neighbor's equipment.  Been doing it kinda by the seat of my pants.
 
Can someone referr me to a handy dandy chart that gives high/low pressure and outside air temps or whatever.
 
I got the guages and hook ups just not the reference.  thanx
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cornbinder View Drop Down
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Joined: 26 Sep 2011
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Post Options Post Options   Thanks (0) Thanks(0)   Quote cornbinder Quote  Post ReplyReply Direct Link To This Post Posted: 15 Sep 2012 at 8:58am
on cars&trucks it can vary from 25-35 psi on the low (fill side) varies though with different manufactures. general rule of thumb is fill to 85% or the r-12 fill capacity.
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