“Is it possible to connect an A/C system *and* a boiler for baseboard hot water heat to the *same* Honeywell RTH6580WF WiFi thermostat? The A/C currently uses G, C, Y and R/Rc connections. The heater is using the W, C and R/Rc connections. See photo.”
1-1 of 1 Answer
Hey there, the wiring is possible but you will need to ensure that the common for 24v comes from the A/C system not the boiler. If you would like additional information on this, please feel free to reach out to our support team at 1-855-733-5465. We would be more than happy to assist. -Jay
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