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View Full Version : R11 Refrigerant Replacement ??

MeltedDuron
02-12-2009, 04:17 PM
I'm looking at building a unit but had speced it with R11. Just don't ask why as I'm not willing too share that info yet!

However, I Googled and R11 comes up saying it's being replaced, however (again) when I try to find with what i have no joy in the matter.

So per topic, what is the R11 refrigerant replacement :confused:

Thanks :)
mytekcontrols
02-12-2009, 04:23 PM
HFC-245fa is somewhat close at 15.3 C boiling point (R11 = 23.6C). However it will require good oil separation and POE oil, something that would not have been a concern with R11 due to its high solubility with all kinds of oil.
aenigma
02-12-2009, 09:01 PM
Autocascade? ;)
godmod
02-13-2009, 12:48 AM
Due to a PDF i found googleing R123 (BP 27,9°C) should be a replacement for R11.
Maybe also R141B with a BP of 32°C.

It is not that hard to find something ;)
tiborrr
02-13-2009, 02:17 AM
R123 is a HCFC, banned from use in newer builds (officially, hehe :P). But that would be my refrigerant of choice.
MeltedDuron
02-13-2009, 03:06 AM
HFC-245fa is somewhat close at 15.3 C boiling point (R11 = 23.6C). However it will require good oil separation and POE oil, something that would not have been a concern with R11 due to its high solubility with all kinds of oil.

I've looked and can't find anything for HFC-245fa within the UK. R134a is showing up a lot within the listing but not as a replacement!

Autocascade? ;)

^^ :doh: Just don't ask why as I'm not willing too share that info yet! Thanks :) :clap:

R123 is a HCFC, banned from use in newer builds (officially, hehe :P). But that would be my refrigerant of choice.

It's standing out too be but finding it is hard!
Triplepoint
01-15-2010, 12:32 PM
R245fa is available from BOC Special gases. Full info on their website http://www.boconline.co.uk/health/safety_data_sheets/scientific_sds.asp
ruffus
01-15-2010, 02:12 PM
i had read some where that u could use the gas out of a fe36 fire extinguiser it is the r245fa that u need here is a msds on those extinguiser
http://msds.dupont.com/msds/pdfs/EN/PEN_09004a2f8000618c.pdf
ruffus
01-15-2010, 02:13 PM
as well here its pdf
http://www2.dupont.com/FE/en_US/assets/downloads/pdf/h99876.pdf
ruffus
01-15-2010, 02:24 PM
as well if any one is looking for samll amounts of r23 u can use the fe13 one here is its pdf
http://www2.dupont.com/FE/en_US/products/fe13.html