Auto Diagnosis & Training Software

R134a A/C Refrigerant Retrofit Guide

R134a Retrofit Guide Main Menu screen


A Guide to Converting Older R12 A/C Systems to R134a Refrigerant.

If you are repairing an older vehicle that has an R12 air conditioning system, and you can't get R12 refrigerant to recharge it, this guide will tell you how to convert the A/C system to R134a.

R134a RETROFIT GUIDE covers both generic retrofit procedures and the OEM retrofit recommendations for most domestic & import vehicles (includes OEM technical service bulletin references, too).

R134a Retrofit Guide includes information on all of the following topics:
* R134a performance characteristics
* History of R134a
* R134a system requirements
* Compressor lubricants
* O-rings & seals for R134a
* Hoses for R134a
* R134a service fittings
* Refrigerant Recovery procedures (required if the system contains any residual refrigerant)
* R134a retrofit procedures (what you do and do not have to change)
* Troubleshooting A/C cooling problems
* Service tips for R134a A/C systems
* Basic refrigeration theory (helpful for troubleshooting cooling problems)
* Alternative Refrigerants approved by the EPA


Sample Screens from the program:

OEM retrofit procedures screen

refrigeration system screen

cooling diagnostic tips screen

PAG oil screen

service fittings screen

leak detection screen

Use R134a RETROFIT GUIDE as a resource to prepare for the ASE Heating & Air Conditioning Test

R134a RETROFIT GUIDE is available as a download for your Windows PC or laptop
This software will run on ANY version of Windows (XP, 7, 10 or 11).
Note: This software will NOT run on Apple or Mac computer, or an iphone or Android smart phone or tablet.

PRICE: $9.95 for download

Sorry, No Refunds on Software


How to Order R13a Retrofit Guide:


Click BUY NOW Button Below if you wish to buy R134a Retrofit Guide now for $9.95 and receive it as a DOWNLOAD.

When payment is received, you will be emailed a DOWNLOAD LINK for the program.

You can then download the setup file to your computer, then click the setup file to install the software.
NOTE: Orders are usually sent same day except holidays and weekends.

Click this BUY NOW button to purchase download



If you have any download questions or issues, see our Tech Support page for help.



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