I have a pair of 2491T7E thermostats installed in a house and would like to pair them together so that one acts as the controller and the other the responder. In a nutshell, if the controller switches to heat, I would like the responder to turn on heat. When the controller turns off heat, the responder turns off heat. Same deal for A/C.

 

I can create scenes for heating and cooling and place the appropriate nodes from the 'controller' thermostat in those scenes, but the only node that will act as a responder is apparently the main node...not sure what that will do.

 

Thanks in advance for any help!

I do exactly the same thing via an ISY program for my nighttime usage.

 

Basically, turn the responder (the one that controls heat/cool) OFF with setpoints like 90' Heat and 60' Cool.

Program the other thermostat to Auto with the desired heat and cool setpoints.

 

In a program when Heat Control turns ON set the responders mode to Heat.

When Cool Control turns ON set the responders mode to Cool.

 

When either turns OFF set the responder mode to OFF.

 

I do actually have a failsafe program that if the heat is on and the responder misses the OFF command then if the temperature reaches a certain temperature re-send the OFF to the responder. Same for cool mode.

Thanks Andy....that works like a champ!

I do exactly the same thing via an ISY program for my nighttime usage.

 

Basically, turn the responder (the one that controls heat/cool) OFF with setpoints like 90' Heat and 60' Cool.

Program the other thermostat to Auto with the desired heat and cool setpoints.

 

In a program when Heat Control turns ON set the responders mode to Heat.

When Cool Control turns ON set the responders mode to Cool.

 

When either turns OFF set the responder mode to OFF.

 

I do actually have a failsafe program that if the heat is on and the responder misses the OFF command then if the temperature reaches a certain temperature re-send the OFF to the responder. Same for cool mode.

 

andyf0,

 

That was a most excellent write up as to how to solve this problem! You're going to be my next best friend when I receive my 8 AC transformers for the remote TSTATS!

 

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