chiller problems

[powell]

iceman,

I think you have a serious flooding/slugging problem during the run cycle. Busted valves are obvious and a shorted motor can also be the result of a flooding condition. One important rule to remember is that a mechanical problems can cause an electrical failure.

A common example is during floodback the crankcase fills with liquid refrigerant which is heavier than oil. The oil pump pickup tube picks up a oil/liquid refrigerant mixture. As this mixture is pumped through the crankshaft it lubricates somewhat but eventually boils off. The last bearing, which supports the rotor, wears out. The rotor then drops and drags on the stator............shorted windings.

The 6RP2 is a refrigerant cooled compressor and hard to slug during the run cycle.........but not impossible.

I would start with a hard look at the TEV and other controls.

Also, adding a suction accumulator is good but, sometimes it's just a bandaid which cannot cure the problem.

Good luck