Abstract: A heating, ventilation and air conditioning (“HVAC”) controller has near field communication (“NFC”) capability and allows communications with an NFC-enabled PC, Tablet or Smartphone device, allowing initial configuration to be performed with or without building power being supplied to the controller. The NFC transmitted information is a subset of all the configuration settings, arranged in a particular order from most commonly changed to least commonly changed. After building power has been connected, firmware on the HVAC controller then combines the NFC transmitted initial configuration information with other stored or received configuration information so the HVAC controller properly communicates and carries out applications in the HVAC network and system.

Abstract: A heating, ventilation and air conditioning (“HVAC”) controller has near field communication (“NFC”) capability and allows communications with an NFC-enabled PC, Tablet or Smartphone device, allowing initial configuration to be performed with or without building power being supplied to the controller. The NFC transmitted information is a subset of all the configuration settings, arranged in a particular order from most commonly changed to least commonly changed. After building power has been connected, firmware on the HVAC controller then combines the NFC transmitted initial configuration information with other stored or received configuration information so the HVAC controller properly communicates and carries out applications in the HVAC network and system.

Abstract: A programmable thermostat has two way communication with a utility using a power carrier line signal across distributed low voltage power lines in a building downstream of an HVAC system transformer. The two way PLC communication includes transmission to the utility of response information regarding the response taken by the thermostat to a power “shed” command, and preferably also includes sensed temperature and/or temperature set point information. The HVAC system transformer includes an integral capacitive bypass path for PLC data transmission across the windings of the transformer. The thermostat positions its temperature sensor to avoid heat given off by the PLC receiver/transmitter and its electrical circuits as well as the thermostat microprocessor and the electrical power circuits therefore.