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Hi Gang: Has anyone any experience with 134a in these units? I replaced all the hoses, pressure and
flow tested the evaporator and condenser, replaced the receiver dryer and
expansion valve with R134a compatible parts. The cooling is poor even though
the line from the expansion valve to the evaporator is cold. Here’s the
kicker, the compressor is so cold that water is condensing on it. Being a modern G* tech I’m used to the compressor
running hot as it compresses the gas, am I missing something? Oh yeah the compressor is capable of over 300 psi on the high side with the service valve accidentally
left closed, oops. The sump is
filled with mineral oil to the correct level and I put 6 oz. of ester oil in
the gas side. I charged it with enough refrigerant to clear the sight glass,
like old For*s. Any ideas on this? Ernie and The Black Bitc_!! |
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