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What is recommended while converting an R12 system to R134a?
A charge level between 75% and 85% is recommended when converting from R12 to R134a refrigerant.
Can you run R134a in an R12 system?
In order to legally use R134a refrigerant in an R12 system, it must be converted or retrofitted to be able to properly use R134a, and all R12 must be properly discharged and captured prior to charging with R134a.
How do you use a R134a can tap?
Turn the handle on the R134a can tap clockwise until the piercing stem pierces the R134a can. To start refrigerant flow, turn handle on R134a can tap counter clockwise until the valve opens. Turn R134a can tap handle clockwise until it stops to close R134a can tap before removing R134a hose.
Can you reuse r134a?
Reusing Refrigerant: Refrigerant must be properly recycled or reclaimed before it can be reused, even if it is being returned to the vehicle from which it was removed.
How big is a flare fitting for R-134a refrigerant?
R-134a for automotive use has a special tank fitting size (1/2″ – 16 ACME) which iscompatible with automotive service equipment. DO NOT purchase or acquire R-134a incontainers with 1/4″ flare fittings, as this will lead to cross contamination of A/C systemsand/or service equipment.
Do you need to change your air conditioner to R-134a?
If you have an older car (Pre-1994) and your car air conditioning has an R-12 refrigerant system. Which works fine, has no leaks, contains a normal amount of refrigerant, and the system cools properly. So, you do not need to change the AC system to R-134a.
When did we stop using R-134a refrigerant?
Ever since 1993 R-134a has been the staple refrigerant for automotive applications. Before 93 we used R-12 for our vehicles and now, as I write this article in 2018, there is a push to phase down R-134a and replace it with the new HFO refrigerant known as R-1234yf.
Can a 134a compressor be filled with refrigerant?
Please note that if the gauge is in the red zone then that may mean that your compressor is not on and that your system is completely out of refrigerant. In this instance you can attempt to fill up your system with cans of 134a but it may be best to have a mechanic review the system as your compressor may be faulty.