has anybody decided which gas to go with to replace r22

Hi,

Supplies of R22 (either Virgin or recycled) are nearly impossible to find in the UK already.

We've just completed our first project to replace R22 in a 40kW Daikin VRV system using R422D as a drop in replacement.

Simple procedure, remove old gas, pressure test, vac out and re-gas. Results look great, operating very close to original design.

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Originally Posted by Trevor_1

Hi,

Supplies of R22 (either Virgin or recycled) are nearly impossible to find in the UK already.

We've just completed our first project to replace R22 in a 40kW Daikin VRV system using R422D as a drop in replacement.

Simple procedure, remove old gas, pressure test, vac out and re-gas. Results look great, operating very close to original design.

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You shouldn't be able to buy virgin or recycled legally. Only reclaimed R22 can be sold. Great to hear of your successful retrofit to R422D. :D

Hi,

In Europe, regarding E.R. 1005/2009, you can only buy/sell regenerated R-22 until end of 2014.
Until then, you can get all R-22 you need for maintenances (leakages) from the existing plants... thousands and thousands of tons are waiting in the plants already.
You only need to recover and recycle it. Then you are able to replace leaks on your own installs/clients.

Regarding the gases to go to, we recomend to go to the "comodities", those common gases to all manufacturers, which are giving a little better performances than the "drop in" ones. You only need to clean properly the installations, and eliminate 100% of MO. Then you can quietly pass to HFC.

HC are flammable aren't they?
I am still a Rookie poster and so I cannot give you at the moment a link to our "retrofit procedure", when I can, I will pass you a nice apporach of this subject, considering other solutions of the industry.

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Originally Posted by Double V

The buzz word in the market is Co2. I have also heard that Du Pont are on the point of a break through refrigerant as a replacement for R22 that is as efficient as Co2!Has any one heard anything about this?

Co2 would be dangerous for a market like ours but we still have another 9 years before we have to phase out in South Africa

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Dupont is always on the verge of finding new and more expensive ways to serve the industry (read "the shareholders"). There's nothing dangerous about CO2. Get educated, it's going to be the refrigerant of choice in supermarkets & soon will be a god choice in larger systems.

is anyone still using R22. We have stocks here (of reclaimed) and it's gathering dust..

Hi there,
For European colleagues, I recomend you to check the following link, in which you can find interesting info about E.R. 1005/2009, concerning R-22 change, and E.R. 842/2006, regarding f-gases leakages control.
www.fri3oilsystem.com/june.zip

Hope you find it interesting

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Originally Posted by El Padre

Have looked into R417A and 422D as Grizzly suggests, the drop ins are very expensive at the moment!!
Will the expected increased demand push prices up or down?

My thoughts exactly!

Cheers

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I have just bought some 417A and it was significantly cheaper than R22R by about £50 for 12.5Kg

The main problem with those drop ins is not the price, or even the lower COP, but the poor miscilibility with the MO in the plants... you will check it with the time

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Originally Posted by multisync

is anyone still using R22. We have stocks here (of reclaimed) and it's gathering dust..

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Hi multisync, yeap we are using R-22. How much R-22R do you have on stock ?

I'm working now to make a plan to somehow handle this whole R-22 "thing" in my company.

At the moment I can see two ways:
1. use some drop-in gas (R417A or R422D)
2. keep using the R-22/R-22R and replace the whole machine in 2014. The machine will be planned EOL that time.

I read many many articles and forums but telling the truth I'm a little bit confused. Not sure which is the better solution from above two.

Can somebody advise me ???

THX Gabor

there will always be lots of Old Kit out in the real world... so it seems beneficial for a good R-22 drop-in to be developed.. consumers and businesses just dont have the money to replace the old stuff when it goes kabonkers...

there are still residential A/C units from the 1960s out there in people's homes that still work and probably will for years...

I often work on commercial kit that was installed in the late 80s.. with still mostly original compressors...

the economy for sure in the USA doesnt support people spending thousands to put in new systems, esp if the old one quits just because a valve leaked and the gas went out...
-Christopher