Not too good of an idea changing an old system, especially with an old , who know's in what kind of condition compressor over to the inefficient 134, that runs at higher pressure's , delivering 20% less cool air at the ducts as the R-12. Not a good idea at all. Changing all the o-rings is good. Changing the dryer is manditaory having an open system. forget the rest. Run either R-12 or an R-12 A, or an equivalent alternative refrigerant that runs at lower operating pressures.
<<Don_Dixon@BELLSOUTH.NET Michael, You will need to replace the receiver/dryer assembly. You may wish to consider changing all of the o-rings on the fittings you need to break/attach with R-134a compatible ones, even if you do not change the unit over to R-134a - that way, you can change it over later and eliminate some future leaks. Personally, I would change it over to R-134a now, since you need to refill the unit from the get go, but that's just me... Don in Reidsville, NC>> |
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