Trane RTAC

[Zeke XI]

Check the accurracy of your pressure transducers, especialloy the intermediate oil. Just valve off and remove, make sure it reads 0 on the ch530

[codewriter]

Thanks, I will do that.

Thank You VERY much for the doc!!! Exactly what I was looking for!

Question:
In an email from someone here I was told the oil filter was part # FLR03434
but the manual above states that the oil filter part # is FLR01650
Does one superscede the other? I am a bit confused.

You also wouldnt happen to have the part number for the transducer would you? Just incase it is it, I won't have to go through all this again...

Thanks!

[Zeke XI]

That's an old service bulletin. While operation is the same, part numbers have changed.
Bit of advice. Typically if the filters are going to restrict flow it is usually soon after startup (copper shavings, slag). If the sensors (evap, cond, and oil) are all good then follow the oil flow chart (Pc-Pi/Pc-Pe). Dirty condenser or flow issues can effect this diagnostic.

As far as the sensor, hate to say it, but the only way to look it up is with the unit serial number.

[Healey Nut]

I forgot about that.....I shouldn't have opened my big mouth.

You have to keep this really quiet ...............dont tell anyone I told you this but .....................you know that little red light on the UCP2 panels .......................yeah yeah yeah....that little red warning alarm one .......ssssssshhhhhhhhhhh
Its actually ..........is anyone listening .........ok ssshhh its an iris scanner .
Everyone who stands in front of the control panel gets scanned , downoladed to Tracer and sent to Momma Tranes data base and and .... okay sssh I can tell you anymore its just toooooooo scary ....!!!!!!!!!!

[codewriter]

That's an old service bulletin. While operation is the same, part numbers have changed.
Bit of advice. Typically if the filters are going to restrict flow it is usually soon after startup (copper shavings, slag). If the sensors (evap, cond, and oil) are all good then follow the oil flow chart (Pc-Pi/Pc-Pe). Dirty condenser or flow issues can effect this diagnostic.

As far as the sensor, hate to say it, but the only way to look it up is with the unit serial number.

Thanks for the great info!

[R123]

Thanks to the person who emailed me the oil filter and gasket part number!

Anyone know the others? Really need the Evap Leaving Water Temp sensor. It's the flat cable type, insertion well mounted.

Thanks!

SEN01959
And
KIT12559

[nique]

thats good stuff. while i agree the serial number is necessary it has led to problems in the past. I called about a part with pricing and availability, gave the serial # and by the time I got back to the customer they allready had a price from trane even though trane had no knowledge of the problem. after a few choice words and phone calls the trane bid was pulled and an apology given. I have also had this problem with the dunham bush rep (only no apology). since then I always try to stay away from giving the serial #. obviosly not a common practice just saying it does happen.

[Six]

I have been giving them serial #s for years and never suspected they would do that. The managent companies I work with wouldn't be impressed at all with a rogue call from another contractor.

[R123]

thats good stuff. while i agree the serial number is necessary it has led to problems in the past. I called about a part with pricing and availability, gave the serial # and by the time I got back to the customer they allready had a price from trane even though trane had no knowledge of the problem. after a few choice words and phone calls the trane bid was pulled and an apology given. I have also had this problem with the dunham bush rep (only no apology). since then I always try to stay away from giving the serial #. obviosly not a common practice just saying it does happen.

If that truly happened, than a call to the higher up's in Trane is warranted. In my area, the parts dept and service dept are treated as 2 seperate companies.

[Nuclrchiller]

If that truly happened, than a call to the higher up's in Trane is warranted. In my area, the parts dept and service dept are treated as 2 seperate companies.

Same here. Or where I used to be. Heck, we couldn't even get service salesmen to talk to us techs about jobs we were both involved with sometimes. And I don't think they ever talked with the parts guys, except maybe for pricing parts.

[dman66]

Hey guys,I'm doing my first oil filter change on a cchh compressor - question is; with the oil check valve,can I clean it successfully or just change it out - I don't want to open her up more than once due to POE oil.......

[R123]

The check valve is virtually maintenance-free and almost never has problems. I'd leave it alone.

Why are you changing the oil filter? Are you having issues or are you doing it on a PM?

[dman66]

R123,I have had multiple low oil pressure failure faults on one of two chillers I service.The refrigerant charge is good,all sensors check out good,oil level is good,loading seguence is good,not sure on oil solenoid though.This Tuesday I will check oil return strainer,pull oil filter,and install new check valve and filter.Majority of techs I talk to led me down this route of repair,and had success in doing this repair.