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03-08-2011, 07:44 PM #1
related to proper handling of home type copeland scroll compressor (oil related)
Recently a HVAC technician installed a replacement scroll compressor. When he energized the system the compressor trip the main breaker within about 4 minutes.
He left (went out of state) and another technician found that the compressor oil had been pumped out (up to the new drier/filter).
I noticed before the first technician installed it that it was transported and carried in a horizontal position.
So my questions are:
How long after being in a horizontal position should a scroll compressor be left without power before being powered up?
Besides being carried/transported in a horizontal position, what else would cause pumpout or pushout of the compressor oil?
Could pressure testing or purging with nitrogen push out any oil? During charging with ***** can that push out any oil?
During running with ***** can that push out any big quantity of oil?
Can a typical good brand of filter/drier be expected to block most of the oil from going upstream?
Thanks,