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Discussion Starter #1
I used to have a paper that would calulat the charge for r22 and 410a by pipe size and by the feet of the pipe i lost it wounering if any buddy knows where to find a program our print out calulator for r22 and 410a and can any buddy tell me what the high side and low side psi should be in a r22 and 410a system thanks:)
 

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30 year tech
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Not quite sure what your asking. There are charts from each manufacture as to how much refrigerant needs to be added for longer linesets on installation.
Charging a system needs to be done with superheat and subcooling.
 

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Discussion Starter #3
i allways charge by Weight and had a chart to go by but lost it if i charge by Superheat (fixed orifice). our Subcooling (thermostatic expansion valve) i forgot what it should be set to beacouse im use to charge by weight
 

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i allways charge by Weight and had a chart to go by but lost it if i charge by Superheat (fixed orifice). our Subcooling (thermostatic expansion valve) i forgot what it should be set to beacouse im use to charge by weight

So you don't do any service?
 
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