Patent ID: 8944338
Filing Date: 2015-02-03
Classification: F24D,F24F,G05B,G05D,H01R,Y02T,Y10T

Abstract:
1. A thermostat configured for automated compatibility with HVAC systems that are either single-HVAC-transformer systems or dual-HVAC-transformer systems, the compatibility being automated in that a manual jumper installation is not required for adaptation to either single-HVAC-transformer systems or dual-HVAC-transformer systems, the thermostat comprising: a housing; one or more temperature sensors positioned within the housing for measuring ambient temperature; a plurality of HVAC wire connectors configured for receiving a corresponding plurality of HVAC control wires, wherein the HVAC wire connectors include a first call relay wire connector, a first power return wire connector, a second call relay wire connector, and a second power return wire connector; a thermostatic control circuit coupled to the one or more temperature sensors and configured to at least partially control the operation of the HVAC system responsive to a sensed temperature, the thermostatic control circuit including a first switching device that operatively connects the first call relay wire connector to the first power return wire connector to actuate a first HVAC function and including a second switching device that operatively connects the second call relay wire connector to the second power return wire connector to actuate a second HVAC function; and an insertion sensing and connecting circuit coupled to said first and second power return wire connectors and configured such that: