Ok I went and bought the Honeywell RTH2310 which according to the Honeywll tech is compatible for my ac/heat unit. I have a 3 zone forced air unit and now when I turn the heat setting on the boiler does not turn on, and also the a/c unit does not turn on when I set the thermostat to cool. My other 2 zones are working fine.The tech gave me the phone # for the zoned air tech department which is not open on weekends! Any help on why this might be happening? Thanks

Same as other post