Error based comfort zone controller.

摘要

Apparatus for balancing and controlling the temperature in comfort zones within a house or commercial building has a series of zone control devices which are selectively opened or closed to allow heating and/or cooling to individual zones. The temperature in each zone is sensed and compared to a preferred setpoint temperature to determine an error temperature for each zone. The respective error signals for each zone are used to determine the zone of greatest thermal error. The zone of greatest thermal error is used to turn the heating/cooling plant on and off. The remaining zone or zones of lesser thermal error have their zone control devices closed or opened, depending upon the error signal for their respective zones. In this manner, all zones are synchronized to the cycle of the zone of greatest thermal error. <IMAGE>