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You should also read the documentation for your own answers. Download documentation for this product here.
How many wires connect this thermostat?
The CT87N wiring will depend on your system. For heating only, it is a minimum of 2 wires, for heating and cooling it could be as many as 5. If you are unsure about wiring you may need to partner with a local contractor.
If you have any questions about this product, please ask here.
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