When your thermostat cables hook up to terminals marked Th, Tr, and Th-Tr, these are generally most most most likely connecting to a fuel valve.
Nevertheless, you need to locate the wires linking to your fuel valve and follow them to your transformer that is 24VAC the heating gear to recognize where your “C” connection is likely to be. In the event that you need help with this, be sure to contact ecobee help.
Merely link the free cable towards the connection point that is common.
IF NO EXTRA is had by you WIRES
If you fail to have any extra cables, you have got two choices:
- Run a wire that is additional your thermostat down to your equipment
- Buy and install a Fast-Stat Common Maker
ALTERNATE SOLUTION: 24VAC TRANSFORMER that is PLUG-IN