We need to use the 8870 thermostats to work with our automation system, but we also need them to work with a dampering system in our home. Our second and third floor run off the same unit.
How can this be done?
Based on the information provided, you’re referring to a zoned system. A Zone Control Board ties multiple thermostat inputs into a common location and forwards the heating/cooling/fan call. It also controls dampers for each zone so that when a mode is requested, any non-calling zone closes, directing that air flow only to the floors that need it. Our thermostats work as any standard thermostat would in terms of equipment control, they simply add another level of communication so that a home automation system has access.