3. CENTER DUCT TEMPERATURE ( 36-46 DEGREES F.) Charge as follows:
R134A = 1.8 lbs R12= 2.0 lbs. No additional oil is necessary in new compressors
GM recommends that vehicles with A/C systems designed for R12 be ... indicate
that minimal changes will have to be made R12 systems to retrofit them to R134a.
... of the normal retrofit, unless indicated by their compressor replacement chart.
www.ask.com/youtube?q=R12 to R134a Conversion Chart&v=__alchrw7CE
Jul 6, 2012 ... The A/C system in many older vehicles needs to be converted from R12
refrigerant to R134a refrigerant. This video shows you how to convert ...
R134A. HFC. No. P.O.E. Liquid or. Vapour. For new medium temp & domestic
freezers, small commercial jobs. (Can replace R12 & R500 - but requires careful
CONVERSIONS ... R12 system with the same evaporator capacity, the R134a
system must have an ... The charging equipment must only be used for R134a.
Automotive Air Conditioning Conversion:Freon to R134a ... I am sure all of you
have heard when you convert from R12 to R134a that you must swap out the ...
This article explains how to convert an R12 system to R134A. Credit to Piranha ...
Ideal pressure depends on the ambient temperature, refer to the chart below.
Aug 1, 2011 ... This R134a refigerant calculator determines the gas pressure based on
temperature of R134a refrigerant. Includes a Pressure Temperature Chart. ...
friendly" replacement for R12 but does require system retrofit modifications.
CONVERTING R-12 SYSTEMS TO R134a: ... Sanden's Procedure for
Conversion from R-12 to R134a: 1. ... Ambient Temperature Pressure Reading
R134a Expansion valve (can be used with R-12)- PN 64511466259 ... PAG oil-
see pic and chart link below for determining the viscosity for ...