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Need a small water chiller....but non-ozone depleting

Need a small water chiller....but non-ozone depleting

Need a small water chiller....but non-ozone depleting

(OP)
Hello all, I hope you can asssist. I'm looking for some small water chillers (3-ton), preferably air-cooled. I've had no problem finding them, however the prefered refrigerant still appears to be R-22 for these smaller units. This plant no longer allows this refrigerant. Can anyone recommend a comparable unit using R-134a? Or, should I look at a 5-ton unit using R-22, and simply use R134a instead... though inefficient?  Your advice is appreciated.  

Aaron A. Spearin
ASQ CSSBB
www.Engineering6ss.com

"The only constant in life is change." -Bruce Lee

RE: Need a small water chiller....but non-ozone depleting

I don't think you will find one in that tonnage that is R-134a.  You might be able to find one that is R-410.  In that tonnage you are dealing in scroll compressors, and it is still hard to find light commercial equipment (5-25 tons packaged and split units utilizing scroll compressors) that are not R-22 (in the US at least).  At this stage you might be stuck needing to work directly with a manufacturer to build a custom unit to meet your no R-22 requirement.  

I don't know about anyone else but I find the lack of non R-22 options in the light commercial (including small chillers) a real pain.

RE: Need a small water chiller....but non-ozone depleting

search the water/ground source heat pumps maybe

Take the "V" out of HVAC and you are left with a HAC(k) job.

RE: Need a small water chiller....but non-ozone depleting

see www.multistack.com
they use R407C

RE: Need a small water chiller....but non-ozone depleting

Interesting.  Recently when I was doing some poking around for a project there was a thread with a similar question. I had checked multistack and thought they were still R-22 only.  Thanks for the heads up atlas06.

RE: Need a small water chiller....but non-ozone depleting

(OP)
I was able to find a supplier to use R410A, but it's not standard.  Also, it actually appears to be a 5-ton unit normally specced with R-22, designed to operate at 3-ton using R410A.  Luckily, it doesn't seem to change the physical size of the system.

Aaron A. Spearin
ASQ CSSBB
www.Engineering6ss.com

"The only constant in life is change." -Bruce Lee

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