Trane RTAC Suction Pressure Comm loss

[Healey Nut]

every time temp or pressure sensor is found faulty and replaced, need to rebind? only on ucp2 and 530??

Yeah but when you do UCP2 you need an east/west pole magnetic screwdriver

[notafatboy]

On ucp2, no binding. On CH530 you'll always have to bind in the new device.

[Screwit]

So does that mean the east/west pole magnetic screwdriver I went out and bought for UCP2 work was a waste of time - I'm going back Monday and demanding a refund

[Healey Nut]

I'm going back Monday and demanding a refund


They sucked you in too ???? Dont forget to take the Tartan paint back as well !!!!!
And ask for the long stand while your at the counter .

[socorrobob]

having problem with trane rtac 200 ton ,hex code 5fd comm loss:suction pressure cprsr 2a ,this occured after lightning storm. is this most likely a sensor. getting stupid as i get older, what is MP and funtional ID

[Screwit]

having problem with trane rtac 200 ton ,hex code 5fd comm loss:suction pressure cprsr 2a ,this occured after lightning storm. is this most likely a sensor. getting stupid as i get older, what is MP and funtional ID

Comm loss could be an issue with either your transducer or the comms wiring/connectors. You need to connect with TechView software to diagnose correctly.

MP is the CH530 microprocessor, all the CH530 LLIDS (Low Level Inteligent Devices)/sensors, transducers, I/O boards, EXV,s etc connect to the MP via a comms bus. Functional ID and node number is assigned to the devices during binding (TechView process for connection to the comms bus). Functional ID is identification of the LLID, e.g Suction Pressure Transducer CPSR 2A.

The attached link to Trane.com will provide some reading for a better explanation and guidance on troubleshooting

http://www.trane.com/Commercial/Uplo...a-en-final.pdf

[socorrobob]

Sure appreciate help fella's.Awaiting my TechView software.after resetting this alarm it will function for about 10 minutes. Big Thankyou to "Screwit"for advice and resource info. socorrobob

[R123]

Sure appreciate help fella's.Awaiting my TechView software.after resetting this alarm it will function for about 10 minutes. Big Thankyou to "Screwit"for advice and resource info. socorrobob

You shouldn't have to "await" TechView software as it's a free download at Trane.com.

http://www.trane.com/COMMERCIAL/Desi...ew.aspx?i=1435

You can download the software, buy a standard 9 pin male X female serial cable, and read the bulletin that screwit posted.

[socorrobob]

Thanks "R123" will download info and get out to this chiller in the am.

[Mr rauf]

please tell me
south pole magnetic screwdriver this is special made by trane or we can use any piece of south pole magnetic for slecting the device .

[R123]

You can use any south pole magnet. You can use any screwdriver with a magnet on the back and if it's in backwards, yank it out with pliers and put it in the other way.

[milkyway]

Good thread

[socorrobob]

yes Trane does sell a pocket size south pole magnet, happy holidays.