Abstract: An environmental control system is disclosed for controlling the environment within a plurality of zones within a building with a plurality of heating, ventilating and air conditioning units. The environmental control system comprises a plurality of controllers for controlling the plurality of heating, ventilating and air conditioning units, respectively. Each of the plurality of controllers includes a temperature sensor connected to a thermostat control for controlling a heating, ventilating and air conditioning unit in accordance with an output from the temperature sensor. A link interconnects the plurality of controllers into a network. Each of the plurality of controllers may alter the operation of the thermostat control in accordance with the operation of the remaining plurality of controllers interconnected into the network.

Abstract: An indoor environmental condition control and energy management system includes a plurality of inputs. A user input receives user input parameters including a desired indoor environmental condition range for at least one energy unit price point. An indoor environmental condition input receives a sensed indoor environmental condition. An energy price input receives a schedule of projected energy unit prices per time periods. A processor, coupled to the inputs, computes an environmental condition deadband range for multiple energy unit price points based on the user input parameters and controls at least one energy-consuming load device to maintain the indoor environmental condition within the computed deadband range for a then-current energy unit price point. In an embodiment, the environmental condition includes at least temperature and the at least one load device includes a heating and cooling system.

Abstract: An indoor environmental condition control and energy management system includes a plurality of inputs. A user input receives user input parameters including a desired indoor environmental condition range for at least one energy unit price point. An indoor environmental condition input receives a sensed indoor environmental condition. An energy price input receives a schedule of projected energy unit prices per time periods. A processor, coupled to the inputs, computes an environmental condition deadband range for multiple energy unit price points based on the user input parameters and controls at least one energy-consuming load device to maintain the indoor environmental condition within the computed deadband range for a then-current energy unit price point. In an embodiment, the environmental condition includes at least temperature and the at least one load device includes a heating and cooling system.