Regular Guest
I have 18-20 year old 40 ton (dual recip hermetic comprssor w/ unloaders) Trane rtu that cracked the factory compressor 90 degree bend out of the compressor dicharge. I have since re-piped the discharge, replaced filter drier, and evacuated the system to 400 microns. Recharged unit and start up compressor has a very bad vibration/shake. I feel it's just going to break the tubbing again. Is it time for a new compressor ? What would just one do this ? Could something internally have lost balance ? Thanks
Professional Member
you probably busted a rod. it will not make it around to breaking the next tubing. you will most likely go out on oil failure and then buy a whole new compressor. is it a hermetic or semi-hermetic? you say that it is a hermetic, but if it is a semi-hermetic, then, right now you have a chance where you could buy the parts to salvage it...you need to open up the compressor and inspect the running train. you will not be able to balance anything.
"Right" is not the same as "Wise".
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Regular Guest
It's a hermetic (sealed compressor), and when it was running the compression ratio was pretty low, which would make sense if one of the rods broke.Originally Posted by jayguy
Professional Member
get the model number and order a new one...not much that you can do about it now although, if it is not under warranty...grind off the weld and look inside!
"Right" is not the same as "Wise".
Don't step on my favorite part of the Constitution just to point out your favorite part.
Just because you can measure it, doesn't mean it is important. Just because you can't measure it, doesn't mean it isn't important.
Professional Member
Wow, that would be a model K compressor. Do they even make or reman those anymore? I've only seen a few in the field. It's the same as an "M", but vertically oriented and sealed in a can.
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Professional Member
Your local Parts Center can get ya one. They are tough and the unit's steel will usually rot away before too many compressor failures. Good luck and check the discharge king valve. Seen a few fail closed.
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