Trane: How to tell if heat strips are on ?

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Old 09-17-11, 09:23 AM
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Trane: How to tell if heat strips are on ?

We bought a new XL16i and Hyperion TAMA7AOC42H with 10kw heat strips and XL950 T-stat.

I can't tell from looking at the air handler or stat, if heat strips are on.

A Trane blurb for TAM7 units says to call for service if the "auxiliary heat indicator is on" (Not "Emergency heat"). Where does one look for this indicator/light?

My Trane dealer/installer closed up their doors. Thought I would start here.

Many thanks
 
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Old 09-17-11, 09:51 AM
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Should be right on the stat...check the manual for the location of the message.

I also think it's odd that you would call for service during normal operation...thats what aux heat is. It kicks in if it gets too cold for the HP to keep up.

Emergency heat I can understand calling for. That should only need activation when the HP has failed for some reason.

Maybe it's just a misprint....it happens.
 
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Old 09-17-11, 10:25 AM
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gg45, thanks for the reply. The entire wording is: " PROBLEM - Auxiliary heat indicator on. POSSIBLE CAUSE - When outdoor temp falls, intermittent lighting is normal. REMEDY - Monitor light. If it stays on continuously when above 30degF or if it comes on when 50degF outdoors, call for service. "

This wording is on a one page info sheet for: Indoor Unit (Air Handler) - Owner's Information and has TAM7 warranty info on the back side.

There is an ALERT icon that will show on the XL950: "Embedded Diagnostics - Alerts have time/date stamp with on screen probable causes" This should be for EMERGENCY HEAT along with other problems, one would think.

I have a feeling that Trane and other mfrs do not want to let you know when their heat strips go on.

What do you think?
 
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Old 09-17-11, 10:35 AM
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Now that you put the whole quote in...yes that makes perfect sense.

I'm not sure they don't really want you to know, they just don't think it's something people should really worry about. Thats why cheaper stats I've seen just have lights...green for running, yellow for Aux, red for emergency.

I believe most systems have a way to lock out the aux heat above certain temps as well....

Pro's should be around later....
 
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Old 09-17-11, 10:54 AM
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@YaddaYadda, what would trane or other manufacturers have to gain by not letting the homeowner know when aux heat was on? I have only played with one of these stats once, so I'm not 100%.... but check the system status button and it may show up there if the aux heat is on.

@gunguy45, not all systems will allow a lockout of aux heat without adding an outdoor stat
 

Last edited by hvactechfw; 09-17-11 at 11:23 AM.
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Old 09-19-11, 05:31 PM
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http://www.trane.com/webcache/un/spl...2_04012011.pdf

http://www.trane.com/webcache/un/uni...3_08012011.pdf

http://www.trane.com/webcache/un/spl...a_04012009.pdf



That is a Very impressive stat. I'd be surprised if it didn't display your desired information and much more.
 
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Old 09-20-11, 06:56 AM
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Houston204:

Thanks very much for your attachments. I was furnished the User's Guide for the XL950 and lots of other paperwork.......but not the two other attachments for the heat pump and air handler.

I have read all the XL950 info and played with the stat a little, but I am unable to find out when the aux heat strips are on. I would just like to know when they kick in, at different outdoor and indoor temps, because I am curious. Could be a money saver in power costs if not wired right or something.

I would also like to know if the 10kw heat strips are both running or just one strip.

Also, I am curious as to the compressor: Is it on 70%......or 100%?

I was unable to find if the XL950 will indicate when in Defrost Mode.

Thanks to all who have responded and keep those cards and letters coming
 
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Old 09-20-11, 03:49 PM
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I may be able to find an installation manual with advanced features if you can find more numbers behind the stat on the subbase.
 
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Old 09-20-11, 03:57 PM
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Page 30 states that your stat should display System Alert when a problem occurs.
 
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Old 09-20-11, 04:32 PM
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Houston204:

It is a TZONE950AC52ZA, serial# 1117LX1280.

I did know about the system alert feature. It told me to clean my pre-filter about a week ago. I did.

Thanks
 
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Old 09-20-11, 04:52 PM
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http://www.trane.com/webcache/un/uni...l_08012011.pdf

Wow, that is impressive. I'm looking foward to the Trane classes on this stat this fall.


Control up to eight (8) systems from
any XL 950 Control (Requires an XL
950 on each System and a Wireless
Router)

802.11 B/G - WLAN (wireless local
area network) for weather feed and
multi-system control)
 
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Old 09-21-11, 04:57 PM
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Originally Posted by Houston204 View Post
Wow, that is impressive. I'm looking foward to the Trane classes on this stat this fall.
You'll have to gave me an update on this once you have the class.. Wonder if they have a set up that work just like the Honeywell IAQ?

Right now my IAQ controls the two stage heat, cooling, humidifier, dehumidify, and fresh air.
 
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Old 05-03-12, 08:39 PM
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Hello there YaddaYadda, I'm also in Oregon and have had the same argument with my installer. In August 2011 I had the XL16i with TAM7 handler and XL950 Comfortlink II thermo installed. My first bill was the biggest ever. Turned out the thing was set to run aux heat constantly. What angers me is the unwillingness of Trane and others to tell you how to set up a signal or alert of some kind that the heat strips are on. Did you ever have any success getting a way to do this?
 
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Old 05-20-12, 09:46 AM
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buffalo556 and others:

Yes, the relay panel, with the cover off, shows w1 and w2 lights, indicating one or both of our two stage heat strip is on. I confirmed by going to the floor air registers with my trusty IR thermometer. They show 10-20 degrees higher than second state compressor readings. I sent you a PM.
 
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Old 01-22-15, 11:14 AM
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Hi YaddaYadda - are you saying I have to go to the 24V relay panel & see that the W1+W2 lights are lit there?

I believe my 24V panel is in the crawl space... LOL!
 
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Old 01-27-15, 04:45 PM
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Hi, BMWallet.....Our panel is mounted on the air handler in the garage. Maybe you can tell by using a IR thermometer at the register and checking every 30 minutes or so to see if the air temp rises....
 
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