HVAC 074 B Scroll compressor cut open 

I need to make some new videos with all the new stuff I learned

@@love2hvac looking forward to seeing it.

Thank you so much!

Thanks, I need to update it with some new stuff I learned.

They do this in Asian countries all the time. I have not seen anyone trying here

When I was in Vietnam they would cut them open, fix them and and weld them back up!

Thank you

Great question. Refregeration. Requires more horse power for the same BTU. Commercial systems have the internal pressure relief valve set at a much higher point also.

Already comes with oil in most cases. Be Sure to check the specific compressor as some have less oil to Account for what's in the system.

I was told a rotory is more efficient although I have not found anything to back that up. I prefer a scroll because it allows the suction gas to cool the compressor windings and it can handle some (some) liquid slugging. Before rotory was only used in PTAC, window, and ductless but now they are being widely used for inverter compressors on 5-ton split system units. I am seeing more and more use of rotory every day.

I noticed amana/goodman start putting them in a few years back in a smaller system u up to 2.5 or so, im a bit concern that suction goes straight into crankcase, they do have a small accumulator, but still more changes of getting some liquid in that design, especially in heatpumps

I saw a 5 ton York with 2 accumulators. I guess they are worried about it too.

The bottom of the vertical crank shaft has pickup finger. As it rotated oil is picked up and centrifugal force with the machining of the hollow center carries the oil up to the top. There are oil ports drilled to then enter that lubricate the top bearing and also out the top of the crank shaft where it lubricates the moving parts of the scroll.

@@love2hvac do you have any article that goes deeper into it? Thanks a lot for the response!