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Thermostat adapter

  • US 10,268,219 B1
  • Filed: 08/03/2014
  • Issued: 04/23/2019
  • Est. Priority Date: 08/07/2013
  • Status: Active Grant
First Claim
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1. A thermostat adapter, comprising:

  • a power input connection for receiving electric power having a voltage of at least 60 volts,a power output connection for a voltage of at least 60 volts for providing operating power to an HVAC system capable of operating in at least one heating mode and at least one cooling mode,a thermostat signal input connection for receiving a signal having a voltage of less than 60 volts from a thermostat,a sensor for sensing an operating condition of said HVAC system,an electronically actuated switch for connecting said output connection to said power input connection, anda control circuit;

    wherein said control circuit is configured to;

    receive said signal from said thermostat signal input connection,decode said signal into a desired operating mode of said HVAC system,sense said operating condition of said HVAC system by using said sensor;

    compare said desired operating mode with said operating condition,set said power output connection to an ON state by setting said switch to an ON state if said desired operating mode is heating and said operating condition indicates said HVAC system to be capable of heating in the present operating condition;

    set said power output connection to an OFF state by setting said switch to an OFF state if said desired operating mode is heating and said operating condition indicates said HVAC system to be incapable of heating in the present operating condition;

    set said power output connection to an ON state by setting said switch to an ON state if said desired operating mode and said operating condition indicates said HVAC system to be capable of cooling in the present operating condition, andset said power output connection to an OFF state by setting said switch to an OFF state if said desired operating mode is cooling and said operating condition indicates said HVAC system to be incapable of cooling in the present operating condition.

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