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08-17-2012, 08:33 PM #27
If the condenser coil and discharge line are full of liquid when the compressor starts, there will be a huge spike in the head pressure for a short time, sometimes even rather violent vibrations. I've seen trip discharge line mounted high pressure switches, and cause cracks in the discharge line due to the vibration.
Scroll compressors sound especially angry starting under those conditions.
A non bleed TXV will take care of things at the evaporator coil end of the lines.If more government is the answer, then it's a really stupid question.