Currently having a new Trane 2-stage, VS furnace and A/C installed in my house. I just found the t-stat manual online and quickly browsed through it. My system is not completely installed yet so I haven’t been able to play with the t-stat to this point. To take advantage of some rebates, I had to go with the Trane/Nexia XL824 t-stat.
I got the upgraded unit with the z-wave bridge, although I do not (or plan to have) any zwave devices. (as an aside, I run X10 devices via heyu, and considered writing a heyu-zwave bridge)
So, ATM, I am going to experiment with it, and I have a few questions that are not answered either by Trane or Nexia…
Is there a HTTP sever running on it that displays (more or less) the same screen info/format in a browser?
This would be great as I could create a https redirect port fwd through my dd-wrt based router and bypass the whole Nexia gate.
How can I remotely connect/use this t-stat without registering and going through the Nexia website?
I very much dislike the idea of yet another middle-man/potential security weakspot with knowledge (and access or if hacked having my furnace control exposed to the world) to my house climate control.
I am betting it has a Linux-based OS. In any event, can I SSH to it? (username and pw?)? File/mem locations for data/setpoints?
The Trane XL824 functions OK as a thermostat, but it’s definitely tied to Nexia’s home automation platform. Nexia and Trane are corporate cousins via Ingersoll Rand. There’s a Nexia ZWave bridge built into the XL824, but to my knowledge the thermostat itself isn’t capable of acting as a ZWave client controlled by other home automation platforms.
I’ve been poking at the XL824 a little bit and there are interesting interfaces on ports tcp/4448 and tcp/9999, but I have no idea what they actually do.
[tpdean@rom ~]$ telnet XL824-14721d8.local.lan 4448
Trying 10.10.10.194…
Connected to XL824-14721d8.local.lan.
Escape character is ‘^]’.
ENTER COMMAND :^]
telnet> quit
Connection closed.
[tpdean@rom ~]$ telnet XL824-14721d8.local.lan 9999
Trying 10.10.10.194…
Connected to XL824-14721d8.local.lan.
Escape character is ‘^]’.
1::evChallenge(239,“F04E876030CC27B429A404D11299822ABACDD1DF”);
^]
telnet> quit
Connection closed.
It would be nice if these interfaces were documented.
The issue with Trane and Vera is that because of that corporate relationship their deal with Nexia/Schlage is an exclusive one. Without the documentation and their cooperation we cannot integrate it onto our platform.
Before considering another thermostat, I believe that some Trane systems require their thermostat.
Yup, that’s true. However I think it’s the XL850 thermostat that does the proprietary “Trane TruComfort” communication back to their variable speed gear. I don’t think there’s anything special like that with the XL824.
[quote=“Marc Shenker, post:3, topic:192699”]The issue with Trane and Vera is that because of that corporate relationship their deal with Nexia/Schlage is an exclusive one. Without the documentation and their cooperation we cannot integrate it onto our platform.
Before considering another thermostat, I believe that some Trane systems require their thermostat.[/quote]