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Thread: R12 replacement
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20-10-2005, 01:09 PM #1
R12 replacement
I have a bit of a problem with a commercial refrigerator on R12. It has a leak on it which I am going to repair this afternoon. However, the supply of R409a(FX56), which is what is used as R12 drop in over here, has now ceased.
I have a little bit left (approx 0.25Kg) which is not going to go very far. I have got tonnes of R134a but I will have to flush out the oil and replace it if I use that?
Does anybody know of a straight drop in refrigerant that I could use?
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20-10-2005, 02:43 PM #2
Re: R12 replacement
you could use r413a (r49) no oil change reqd
:eek:Why on earth would somebody do that?:(
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20-10-2005, 03:15 PM #3
Re: R12 replacement
Thanks.
I'll see if thats available here.
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20-10-2005, 07:25 PM #4
Re: R12 replacement
R49 is OK on fridges but don't use it on freezers unless you want to blow the compressor
I have seen R134 put in and work although in theory it shouldn't because of the oil.
Whats it been, 5 years since we lost R12 and we still have problems with drop in replacements. OH i look forward to 2012 when R22 goes as well
regards
Fatboy
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20-10-2005, 07:35 PM #5
Re: R12 replacement
I think my link is req. again.
http://www.refrigerants.com/refrigerants.htm
(don`t nobody slag it off this time)
ChillinIF AT FIRST YOU DON`T SUCCEED.
DESTROY ALL EVIDENCE THAT YOU TRIED!
and go get a cuppa
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21-10-2005, 12:25 PM #6
Re: R12 replacement
Thanks for that.
I acually managed to get some FX56 (R409a) this morning, so im good for now.
Just one quick thing. When I was looking at the refrigerant chart in the wholesalers yesterday, under R410a it says "drop-in replacement for R22" surely not?
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21-10-2005, 01:07 PM #7
Re: R12 replacement
Hi airefresco,
During the past few years, I have changed some units from r-12 to r-22.
Just check the capacity of the TEV and install a new compressor.
The size of the condenser should be ok.
An adjustment of the pressure controls is required.
Chemi
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21-10-2005, 02:00 PM #8
Re: R12 replacement
Originally Posted by rdocwra
New HCFCs are banned from 2010. Total use ban from 2015.
At this rate, HFCs will be gone in 2010, before R22., if the European Parliament have their way on Tuesday.
.
________
ipod gamesLast edited by Argus; 07-02-2011 at 08:39 AM.
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