Originally Posted by Mike77015
Most refers will have the amount needed on the label. Is the unit still in a vaccum? Blended refrigerants have to be charged as a liquid. Do not add extra oil to the compressor.
I opened what I believe is the service fittings valve (allen wrench screw in the middle of the service valve) and nothing came out or went in so it does not appear to be in a vaccum. It's possible they pulled one and it leaked in thru the service valve maybe.
Are you saying that new compressors DO
come with oil in them?
It is 134a, is this a blended refrigerant?