Johnson Service Company

Ronald J Liebl

Paul W Madaus

Lawrence J Strojny

Alan J Bronikowski

Thomas C Holdorf

Mark W Tellier

Disclosed herein is a temperature control system for multi-zone temperature control with setback control. The system includes a thermostat associated with each zone of a building, and a central control unit which communicates with each thermostat to send temperature setpoint values to each thermostat for the purpose of conserving energy and reducing energy consumption during certain times of the day. Each thermostat is associated with either a heating or cooling device, where setup temperature values are sent from the central control unit to the thermostats where cooling devices are used in place of heating devices. The thermostats are designed to operate as stand-alone units which control the temperature within a zone based upon a temperature setpoint stored at the unit. The temperature setpoint values are replaced by the higher or lower temperature setpoint values transmitted to the thermostats by the control units during setback or setup time periods. To avoid the requirement of installing communication wires between the central control unit and thermostat, each thermostat and the central control unit includes communications circuitry which allows the thermostats and control unit to communicate over the power conductors within the building.

Temperature control system having central control for thermostats

A control system for controlling a climate control device, such as an HVAC device within a premise, utilizes real time price tier data supplied by the utility company to achieve economical temperature regulation of the premise. The control system regulates temperature based on time of day data and desired temperature data supplied by the user wherein the user may program different desired temperatures depending upon the relative cost of electricity. The system also provides billing information to the user for current usage and projected usage. The control system additionally controls appliance modules and regulates operation of the hot water heater.

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Mukwonago, WI, United States of America

Ronald J Liebl