Refrigerant Type: R134A
Country of Origin: United States
I have retrofitted the system in my '72 Chevy pickup back to the factory Four Season system. I was running an aftermarket system prevously. I will be running R134A. I have kept the POA and have adjusted it to 26 PSI. I installed a new TXV and a new receiver/drier. I am using a Sanden SD5H14 compressor that was previously in service instead of going with the A6. The only component from the original Four Season system that I am going to use is the evaporator. The old mineral oil has been completely removed from the evaporator. I know the Sanden called for 7.2 +- .6 oz's of SP20. Should I maintain this amount of oil or close to it? Should I add any oil to the evaporator? if so, how much?
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