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How much r22 charg in 1 ton split ac unit - Heating & Cooling

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What your asking is impossible to answer. True the charge goes up with the btu size but there is no set amount. To figure this out you need a couple of things.
1. On the condensor (outside unit) has a lable that will tell you how much R-22 the condensor will hold.
2. On the evaporator (inside) should also be a tag that will tell you how much the evaporator will hold.
3.Then you have to know the line sizes and also length to tell you how much refrigerant the line set will hold.
You add all these up and you will have the correct amount.
Hope that this helps.

Posted on May 21, 2011

  • Matt Heinz
    Matt Heinz May 27, 2011

    The best way to charge your a/c is going to be on a 80 degree day charge unit slowly until the unit sweats back on the suction line the one with black insulation on it. Charge unit till the unit sweats back to the compressor till there is a ring of sweat on compressor the size of a half dollar.

  • Walter Kunesky
    Walter Kunesky May 28, 2011

    Lets play a game of what if with you.
    WHAT IF:
    drier is semi clogged?
    a-coil is dirty?
    blower wheel is dirty?
    registers are closed in the system?
    ductwork is the wrong size?
    filter is clogged?
    blower motor fan is not up to par?
    condensor is dirty?
    metering device is not feeding properly?

    You have to take all these things into consideration and you didnt ask any of these questions? I know you are new to the field so before answering questions that could be wrong, remember to ask yourself, "WHAT IF" Rememer I helped you when you didnt know how to check the valves on a compressor, they would have taught you this in school.



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