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I could use some tips for charging a R134A system for the first time.

791 views 1 reply 2 participants last post by  Joe G 
#1 ·
I'm ready to charge my Vintage Air A/C system in my '55 Bel Air hardtop.

I bought the under dash kit only from VA. I have the R4 type compressor that came with my GMPP serpentine system. I also got my condenser from AutoRad Radiators in the kit with their radiator. It's a relatively large condenser.

Anyway I'm thinking that it will take more R134A than the VA instructions say to use since I assume they are recommending an amount for their complete system.

I've done a lot of work in the past with R12 and pretty much know how to put in the right amount with those systems by pressures and ambient and outlet temperatures. But, I have very little experience charging anything with R134A.

I also understand that it's important to get the amount just right and that a little low or a little too much can effect performance quite a bit.

Tips will be appreciated.

 
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