Trane RTAA Unloader/Lip Seal Problem????

[Pat A/C]

First of all where do u live second does the chiller have lots of load the reason why I am asking u that depending on where u live and if it is cold and ur chiller has a small demand chances r u compressor starts every other day to equalize compressor run time and trane has a sb called first cold start of day where the piston is so worn out it trips on low oil replace the piston
For the other question I think u didn't install it gaskets or solenoids right
U could have a issue with the lip seal but there is a service bulletin to explain how check this out

[apprentice3]

First of all where do u live second does the chiller have lots of load the reason why I am asking u that depending on where u live and if it is cold and ur chiller has a small demand chances r u compressor starts every other day to equalize compressor run time and trane has a sb called first cold start of day where the piston is so worn out it trips on low oil replace the piston
For the other question I think u didn't install it gaskets or solenoids right
U could have a issue with the lip seal but there is a service bulletin to explain how check this out

I verified the valves, and gaskets again today. The valve holes line up with the holes on the compressor just as they were taken off. I also verfied the gaskets. It appears that they will only line up one way. I installed everything just as it was pulled off. On Tuesday me and our chiller guy are going to change the piston and do a lip seal kit. I have read some of the bulletins on the piston change out. What are the odds that the piston will turn, and i have to remove the suction end? Any recommendations on removing the piston nut without worrying about anything? For this piston install do we need to turn the compressor outward to service it or can we just do it in place?

Thanks for the help!

[Pat A/C]

No u do not need to turn the compressor and for ur other question u will only know when u try to unscrew the bolt if the rod turns u could not do anything to prevent this and ever the rod does turn do not atempt to remove the suction cover u need to remove it from place and send it to compreesor repair shop

[apprentice3]

No u do not need to turn the compressor and for ur other question u will only know when u try to unscrew the bolt if the rod turns u could not do anything to prevent this and ever the rod does turn do not atempt to remove the suction cover u need to remove it from place and send it to compreesor repair shop

Thanks! Have you ever had it spin? If so how often does it seem to happen?

[Pat A/C]

Out of 10 piston replacements it happened once let me know how it goes

[Healey Nut]

and ever the rod does turn do not atempt to remove the suction cover u need to remove it from place and send it to compreesor repair shop

Incorrect , it is fixable on site . Ive done it and there are bulletins on how to do it inc parts etc .

[Pat A/C]

Healey u r right but not everyone could do this myself i already did it,but based on what he had said it is the first time he is changing a piston i do not know how much experience he has because it is a really delicate job, and the other thing i do not know the age of the unit, it must be around 10 years old with lots of compressor run time depending where u live up here in Canada they run six to eight months of the year.At this point u rebuild the compressor and ur good for another 10 years.

[apprentice3]

Healey u r right but not everyone could do this myself i already did it,but based on what he had said it is the first time he is changing a piston i do not know how much experience he has because it is a really delicate job, and the other thing i do not know the age of the unit, it must be around 10 years old with lots of compressor run time depending where u live up here in Canada they run six to eight months of the year.At this point u rebuild the compressor and ur good for another 10 years.

The piston, and the Lip Seal Kit fixed the problem. Thanks For the Help!

[Dallas Duster]

Healey u r right but not everyone could do this myself i already did it,but based on what he had said it is the first time he is changing a piston i do not know how much experience he has because it is a really delicate job, and the other thing i do not know the age of the unit, it must be around 10 years old with lots of compressor run time depending where u live up here in Canada they run six to eight months of the year.At this point u rebuild the compressor and ur good for another 10 years.

Where are you located Pat?

[Pat A/C]

Montreal Canada