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Thread: Ice Freezer Conversion
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16-12-2008, 12:29 AM #1
Ice Freezer Conversion
I am working to replace an R-12 condensing unit on an old (30+ years) chest ice cream chest freezer, size 8ft L X 2ft D X 2ft W.
My dilema is what refrigerant to use for the new condensing unit. R134a is not very efficient at the minus 10degree F that I want to maintain, I believe R404a is too high pressure for the existing evaporator and tubing. I am thinking about going with 401a unless I can get some other suggestions.
Any ideas
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16-12-2008, 05:31 AM #2
Re: Ice Freezer Conversion
By the sound of it, I would be going with R409 because it is a direct drop-in replacement for R12 with similar pressure/temp relationship without the need to flush systems or change oils. Having said that, I have been out of the commercial refrigeration game for a few years and might be out of the loop a bit now.
Good Luck
Dan
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