Results 14 to 17 of 17
Thread: Double / triple sweep?
10-25-2012, 07:09 PM #14Professional Member
- Join Date
- Mar 2003
just had a job with wet system, contamination in the oil due to shietty evacuation. The so called factory expert claimed to have done "proper" evacuation in a day after repairs. We tested by doing oil analysis and megging, and made them redo it, with my guy witnessing. took four days to get the system right. first two and a half were first pull down. System was swept to 1500, broke to 2 psi, 1500, 2 psi, and finally 500. guy thought it was a waste of time too, but when checked again after charging, megger readings went up seven fold, oil analysis clean, moisture indicated very dry. He is now a believer, he says....
10-25-2012, 08:03 PM #15
10-26-2012, 10:27 PM #16
10-26-2012, 10:39 PM #17Professional Member
- Join Date
- Mar 2012
everyone is going to say this is not possible
I have repaired at least 5 water source systems this year that had compromised coils, water flooded refrigerant systems. one had been flooded for over 1 year. Zero exaggeration. any amount of moisture can be removed dependent on how bad you want to get it out. im tired of hearing people say that if a line set is open and it rains its ruined. pull vac, break with nitro, and change oil as needed. it will come out.