Any HVAC experts around? - ZR-1 Net Registry Forums

VetteMed · 05-25-2011

The AC system is giving me fits. I've got a new compressor/condensor/evaporator/accumulator/orifice tube. I added 3 oz of mineral oil to the evap, 2.5 to the accumulator, 1 to the condenser, and around 3 to the compressor. I evacuated the system down to 29.9mm Hg, let sit overnight, then evac'd again, then added 36 oz of R12 (the factory spec).

Cooling is nonexistent, the system cycles very rapidly, every 3-4 seconds, the low side gets cold but the evap fins do not get cold and therefore the air does not get cold. I disassembled the system today and found over 8 oz of oil in the evaporator, hardly anything in the other components. WTF is going on?? The Ac control panel indicated code 09, low freon, so against my better judgement I added another 12 oz, which did nothing to help the situation.

05-25-2011	#1
VetteMed Join Date: Mar 2009 Location: Orlando, FL Posts: 1,816	Any HVAC experts around? The AC system is giving me fits. I've got a new compressor/condensor/evaporator/accumulator/orifice tube. I added 3 oz of mineral oil to the evap, 2.5 to the accumulator, 1 to the condenser, and around 3 to the compressor. I evacuated the system down to 29.9mm Hg, let sit overnight, then evac'd again, then added 36 oz of R12 (the factory spec). Cooling is nonexistent, the system cycles very rapidly, every 3-4 seconds, the low side gets cold but the evap fins do not get cold and therefore the air does not get cold. I disassembled the system today and found over 8 oz of oil in the evaporator, hardly anything in the other components. WTF is going on?? The Ac control panel indicated code 09, low freon, so against my better judgement I added another 12 oz, which did nothing to help the situation.