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Thread: R-22 drop-ins
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28-10-2007, 04:01 PM #1
R-22 drop-ins
I know this issue has been discussed in several HVAC forums ad nauseum, but I'm interested in more opinions on what would be the most suitable long term drop-in for R-22 at the best price.
Here in the states,407-C seems to be the most widely accepted alternative. It's not cheap.
But then again, R-22 prices have doubled for me in the last 6 months, unless I buy it in bulk.
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29-10-2007, 12:24 AM #2
Re: R-22 drop-ins
I think that R417a is a good drop-in for R22 although there may be some seal replacement needed.
http://www.epa.gov/ozone/snap/refrig...sts/indac.htmlBrian - Newton Abbot, Devon, UK
Retired March 2015
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29-10-2007, 10:49 AM #3
Re: R-22 drop-ins
Hi,
We used Isceon 59 ( R417a) as a replacement on R22 split units, without altering anything else. expensive indeed, but works excellent.
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29-10-2007, 11:49 PM #4
Re: R-22 drop-ins
A co-worker of mine is retrofitting 10 chillers from R22 to R422d.He says it works very well! Haven't used it yet, myself!
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30-10-2007, 02:38 PM #5
Re: R-22 drop-ins
Thank you for the responses.
It appears as though we will be seeing alot more drop-in replacements for resi and light commercial work here in the US well before the 2010 new production cut-off date.
My local distributor is pushing 417-C because it is very close to R-22 in capacity and efficiency.
My R-22 pricing has gone through the roof, as expcted.
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01-11-2007, 01:03 AM #6
Re: R-22 drop-ins
I have used ES-22a in A/C and it works fine...
"If Hannah was an air handler, I would be a condensing unit so I could open her TXV and pump my refrigerant through her coils." - a HVAC friend of mine
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