C wire creation system

Abstract

An HVAC system where either/both the heating apparatus or cooling apparatus are single or multistage and controlled by a thermostat capable of single or multistage operation through two connecting wires. A single control wire is repurposed to act as a “C” common wire to provide a return path for current in order to power a room thermostat. A code is transmitted via a wireless signal to a receiving microcontroller located in the HVAC heating or cooling unit. The receiving microcontroller interprets the signal and provides power, via relays, from the transformer to the appropriate terminal in the heating control thereby replacing the function of the repurposed wire. In essence, the wireless transmission in combination with a relay, replace the function of the white wire allowing it to be repurposed to a C wire. There is no possibility of a false trigger that commonly exists in shared wire systems.

What is claimed is: 
     
         1 . A system to supply power to a thermostat, from an existing transformer, by replacing the function of a wire between a room thermostat and an HVAC heating or cooling unit in order for that wire to be repurposed and used as a return wire for current comprising: 
     
     
         2 . A method according to  claim 1 , wherein a wire previously used for a heat ON function (typically white) is able to be repurposed to function as a C wire (typically black) providing a return path for current thereby providing power that can be used to power a thermostat. 
     
     
         3 . A method according to  claim 1 , wherein the signal capture method is via wire, or selected from the group consisting of radio frequency, radar, infrared, visible light, laser, and ultrasonic; 
     
     
         4 . A method according to  claim 1 , further comprising a microprocessor, firmware, and related circuitry to convert signals from said thermostat; 
     
     
         5 . A method according to  claim 1 , wherein the signal transmitter for transmitting a signal using technology is selected from the group consisting of radio frequency, radar, infrared, visible light, laser, and ultrasonic; 
     
     
         6 . A method according to  claim 1 , wherein the signal receiver for receiving a signal using technology is selected from the group consisting of radio frequency, radar, infrared, visible light, laser, and ultrasonic; 
     
     
         7 . A method according to  claim 1 , wherein the transceiver for receiving and sending a signal using technology is selected from the group consisting of radio frequency, radar, infrared, visible light, laser, and ultrasonic; 
     
     
         8 . A method according to  claim 1 , further comprising a microprocessor, firmware, and related circuitry to convert signals from signal receiver; 
     
     
         9 . A method according to  claim 1 , wherein the HVAC system is 24 VAC. 
     
     
         10 . A method according to  claim 1 , wherein a thermostat controls heating and/or cooling systems, whether they are gas, electric, evaporative, or refrigerated air. 
     
     
         11 . A system to provide a means of connecting a multistage room thermostat to a multistage HVAC heating or cooling unit utilizing two or more existing wires comprising: 
     
     
         12 . A method according to  claim 11 , wherein a wireless signal and relay are used to replace the wire that is normally required to perform the function of heating or cooling high\low modes; 
     
     
         13 . A method according to  claim 11 , wherein the signal capture method is via wire, or selected from the group consisting of radio frequency, radar, infrared, visible light, laser, and ultrasonic; 
     
     
         14 . A method according to  claim 11 , further comprising a microprocessor and related circuitry to convert signals from said thermostat; 
     
     
         15 . A method according to  claim 11 , wherein the signal transmitter for transmitting a signal using technology is selected from the group consisting of radio frequency, radar, infrared, visible light, laser, and ultrasonic; 
     
     
         16 . A method according to  claim 11 , wherein the signal receiver for receiving a signal using technology is selected from the group consisting of radio frequency, radar, infrared, visible light, laser, and ultrasonic; 
     
     
         17 . A method according to  claim 11 , wherein the transceiver for receiving and sending a signal using technology is selected from the group consisting of radio frequency, radar, infrared, visible light, laser, and ultrasonic; 
     
     
         18 . A method according to  claim 11 , further comprising a microprocessor, firmware, and related circuitry to convert signals received from signal receiver; 
     
     
         19 . A method according to  claim 11 , wherein the HVAC system is 24 VAC. 
     
     
         20 . A method according to  claim 11 , wherein a thermostat controls heating and/or cooling systems, whether they are gas, electric, evaporative, or refrigerated air.