tuc board and summit conflict

[caosesvida]

Is anybody having any conflicts when programming tuc boards with the summit system. I am getting some giving me local oa temp, or water temp too high and shutting down the compressor. Although the water temps are reading normal. thanks.

[tranebasguru]

Do you have Eware or Rover to program the TUC? I know there is an issue if you set up the TUC as a Fan Coil B but don't know the symptoms. You can't change the configuration with Summit. You will need Rover or Eware.

[caosesvida]

I have the e ware. And it is set up as wshp heat/cool.. The trane guys have mentioned that the problem with false alarms and other things are because the tuc and the summit sometimes have a conflict. I was wondering about it. I have one building that gives me about 50 alarms for outdoor air sensor failure, every day. THere is no access to it in the tuc board and none in the main pc. One unit is showing fault on HWT but the readings are normal at the board and on the pc. Have tried a couple of configs such a mixed air as opposed to return air with no change. Is there a number for a trane programer at the main office? than ks

[tranebasguru]

I'll have to check my books. I'll get back with you tomorrow PM.

[caosesvida]

thanks

[tranebasguru]

Ok, I searched the archives. Couple of things you need to check. Make sure you have version 1.33 or higher of Eware, 1.37 is preferred. Check the board revision. 6200-0028-15 or later. 15 is a bug fix. Make sure you are logged in on Eware, default password is 1111. There are certain setup screens you can’t get to if you are not logged on. Check your configuration for the OAT failure. Make sure economizer isn’t enabled. I don’t remember all the configurations but if you have multiple units that are physically the same and one of these units is working correctly then copy the configuration file from one to you problem unit(s). Otherwise, put a 10k resistor across the OAT input terminals.

As far as the entering water temperature, it may be a wiring issue causing it to read a ground at times but not when you are looking at it. Note that the compressor will only be disabled when the entering water temperature drops below the “compressor heating disable temp” or rises above the “compressor cooling disable temp” so you could try adjusting these to see if this will help until you figure out the real problem. You might want to set up a trend on the EWT to run every minute and have it automatically stop (snapshot trend) when the diagnostic for HWT comes in so you can see when it is failing.

Hope this helps.

[caosesvida]

I will check this out and probably will have some more questions, thanks.