I'm an engineer working on the remodel of an existing custom home. One large room of the home has a Warmfloor system with a Digi-Lux thermostat. The room is also served by a forced-air cooling system. Currently, there is no coordination between heating and cooling in the room.

To prevent simultaneous heating and cooling, can we intercept the white wire (V-) from the thermostat to the regulator to disable the Warmfloor heating when the room is in cooling mode? If not, what's the best way to accomplish this?

Thanks for your help.