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  1. #1
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    changing a comp from R22 to R290



    I have an R410 scroll that I want to change to R290. What is the best way to calculate the new performance compared to the R410?
    Last edited by MikeHolm; 15-12-2012 at 01:19 AM. Reason: lost my brain, it is a 410, not



  2. #2
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    Re: changing a comp from R22 to R290

    Don't think i'll be much help but R290 is a substitute for R22. I don't know of a formula for R410a to R290 except to use PT chart. Your going to drop in performance due to lower working pressures and of course, mineral oil only.
    To the optimist, the glass is half full. To the pessimist, the glass is half empty.

  3. #3
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    Re: changing a comp from R22 to R290

    I know I have to change out the POE for mineral oil but I wondered if there was any structural differences in the comp other than the fact it can take a higher pressure than R22. I suppose I could go on Coolpack to look at the difference but given the amount of learning needed to get anywhere with Coolpack (and my alzhimers like memory), what little I know if it would have to be relearned, uggg.

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