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RE: Off Topic A/C Question

To: "Steve Sage" <ssage@socal.rr.com>
Subject: RE: Off Topic A/C Question
From: "Bob Palmer" <rpalmer@ucsd.edu>
Date: Sat, 28 Jun 2003 22:00:28 -0700
Steve,

Freeze 12 is a mixture of 80% HFC-134A and 20% HCFC-142B that behaves, more
or less, like HCFC-12 (R-12). I believe you will have to remove all of the
CFC-12 if you use Freeze 12 or other similar blends. There is also a
miscibility issue in using these mixture with standard polyalkylene glycol
(PAG) refrigeration oil and it is probably advisable to have the old oil
removed and replaced with a special PAG oil (e.g., 'Daphne') or a compatible
(miscible) mineral oil . This could be expensive. The heat load at the
condenser using Freeze 12 will also be higher, so if your cooling system is
marginal (or any part of the refrigeration system for that matter), this
could also be a problem.

Bob Palmer
rpalmer@ucsd.edu
robertpalmer@paulhastings.com
rpalmerbob@adelphia.net

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