ADAPTIVE ANTICIPATOR MECHANISM FOR LIMITING ROOM TEMPERATURE SWINGS

An adaptive cycle rate thermostat control. A thermostat including a switch and apparatus for heat anticipation operates responsively to an anticipator time constant. Apparatus for sensing room temperature provides an electronic signal proportional to the room temperature sensed. Apparatus for providing an activation signal to the switch responsive to the heat anticipation apparatus and sensed temperature cycles a variable-speed heat pump. Apparatus for modifying the anticipator time constant in response to room temperature swings provides the modified anticipator time constant to the heat anticipation means so as to keep room temperature swings within desirable limits while operating the heat pump more efficiently.