Do the colors of the wires for my system determine its configuration?

There is no standard wiring guide for home thermostats. Each of the wires should be installed next to a terminal marked with a letter. This letter indicates the wire's function and the wire should be connected to the matching terminal on the ZEN Thermostat wall plate.

If your terminals are not labelled with letters, you can check the connections at the other end, on your heating/cooling system, to determine each wire's function.

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