Trane air cooled screw chiller

[Carlos100]

Hi
Am trying to get service manual for trane chiller it has no model/serial info . It is approx 1993 2 x screw compressor air cooled (8 fan) it has controller with 4 arrow buttons , up,down, left, right. Any info appreciated as am having trouble understanding status and fault codes. It was retrofitted by a different company from r22 to r438 which apparantly caused exv failure .trane have recommended retrofit to r404a which has been carried out by another engineer but it still has issues which I need to investigate

Thanks

[goshen]

Hi
Am trying to get service manual for trane chiller it has no model/serial info . It is approx 1993 2 x screw compressor air cooled (8 fan) it has controller with 4 arrow buttons , up,down, left, right. Any info appreciated as am having trouble understanding status and fault codes. It was retrofitted by a different company from r22 to r438 which apparantly caused exv failure .trane have recommended retrofit to r404a which has been carried out by another engineer but it still has issues which I need to investigate

Thanks

Hi it would seem like either you have had the controller changed or you have a unique model of ucp2,please try to elaborate on type of controller or model of unit so we can provide you with documents
good luck

[centrecipew]

Hi Sounds like you have an early RTAA unit. The controller was known as a UCM. Let me scratch arround and try to get you some info.
If the expansion valve assembly has been changed it would also be advisable to upgrade the EEV control module as well. An upgrade is available for the front screen as well, however you would also have to replace the chiller module as well. R404a is the recomended retrofit refrigerant for this chiller but the mineral oil has the flushed and replaced with POE. Trane oil 020E. Low refrigerant temp trips will occur if the oil has not been Flushed correctly. Good luck

[centrecipew]

Hi Send me your email and I can send you the manual for the chiller.

[Carlos100]

Hello

Thanks for the info
Im pretty sure exv control mdule was replaced, but will be checking on the oil status - not sure if this was done.
I have included some photos, unfortunately dont have any more controller info till i go to look at it

[centrecipew]

Hi,
This is an early ERTAA unit.
E meaning built in Europe/France.
I do have a manual for the controller but is to big to post! Send me your email details and I can get it to you.

[Carlos100]

Thanks Centrecipew

Great info
Fantastic work identifying the chiller

Will be going to site Thursday to investigate

[peterbw]

Hi i am desperately looking for a manual for ertaa model. Kindly send me a manual for this model
My e mail id peterbw@rocket mail.com

Thank you very much in advance

peter

[chillerman2006]

Hi i am desperately looking for a manual for ertaa model. Kindly send me a manual for this model
My e mail id peterbw@rocket mail.com

Thank you very much in advance

peter

I think there is a link here

http://www.refrigeration-engineer.co...r-(oil-related)

somewhere

[ddugger]

I have a RTHA which has a circut going out on low oil flow. I dont have the info required to ohm pressure sensors out. Can anyone help me with this.

[ddugger]

I am looking for a service manual for an RTAC 240. I need to trouble shoot the oil prssure transducers. I have a low oil flow on circuit one. The ohm chart would be helpfull if you could help me out. much thanks.

[KNITESTIK]

looking to see if you could possibly email me the same manual please. much appreciated.

[install monkey]

ucm info
https://rapidshare.com/files/2385241...m_controls.pdf;
rtra
https://rapidshare.com/files/3746213...ne_chiller.pdf;
rtac
https://rapidshare.com/files/5117287...N_02172011.pdf;