Patent ID: 7979164
Filing Date: 2011-07-12
Classification: F24F,Y02B

Abstract:
1. A heating and ventilation system comprising: an alternating current power source that conducts a low-frequency low-voltage waveform across hot and common power transmission lines; a thermostat controller, a controller for a heating system, and a controller for a circulating air blower, the thermostat controller, heating system controller and circulating air blower controller being connected to each other only through each controller's individual connection to the hot and common power transmission lines, wherein each controller is capable of transmitting one or more signals that are superimposed onto the low-frequency low-voltage waveform and include information identifying a destination controller that the signals are intended for, the thermostat controller being capable of transmitting one or more signals which specifically request operation of the heating system controller for establishing operation of the heating system, and which may not establish operation of any other controller; wherein at least one controller is capable of modifying the operation of at least one component that the at least one controller has control over in response to receiving a signal that is intended for another controller which includes information about the operation of a component within the heating and ventilation system.