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vwhead77
Forum:
Geothermal & Heat Pumps
11-18-21, 07:57 PM
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Replacement for R-12
Views:
6,124
Posted By
vwhead77
R22 Replacement
I've been using R407C in most of my retrofits. It's best to replace all of the mineral oil you can with POE (drain the compressor). I haven't had one bit of trouble with it and the pressures are very...
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