Re: [DML] Optimal R134a AC pressures
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Re: [DML] Optimal R134a AC pressures

My instructions say 85% of the original recommended R-12 charge. (e.g. 2 
pounds R-12 would mean no more than 1.7 pounds R-134a) However, I have 
seen recommendations for 80% or 90%.

Farrar Hudkins
#2613 (auto)

ksgrimsr wrote:
> I serviced my R134a AC setup this weekend and it is performing well. I
> used the pressure tables in the service manual to set it up.
> Obviously, the pressure tables in the workshop manual are for R12.
> Does anyone have the pressuve values for optimal R134a performance? I
> want to make sure my system is running as efficiently as possible.
> Knut


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