Smart thermostat and a thermostat adapter with integrated safety interlock for installation and diagnostics of an in-floor heating system

An adapter device to removably couple to a thermostat and provide temporary electrical interconnection between the thermostat, an in-floor heating element, and an AC power source during installation and testing of the in-floor heating element, the adapter device comprising:

• a housing;
• a heating element interconnect disposed on the housing to electrically couple to an in-floor heating element;
• an alternating current (AC) power source interconnect coupled to the housing to electrically couple with an AC power source to receive a power signal;
• a thermostat mounting region defined by the housing to removably couple to the thermostat, the thermostat mounting region having at least one electrical interconnect to electrically couple to the thermostat;
• a safety interlock, the safety interlock including:
• a first switch disposed on an outside surface of the housing, the first switch configured to transition from a first open state to a first closed state in response to a user-supplied force applied to the first switch;
• and
• a second switch disposed within the thermostat mounting region, the second switch configured to transition from a second open state to a second closed state in response to the thermostat being coupled to the thermostat mounting region and to transition from the second closed state to the second open state in response to the thermostat being uncoupled to the thermostat mounting region;
• wherein the safety interlock is configured to electrically couple the received power signal to at least one of the thermostat and the in-floor heating element in response to the first switch and the second switch being in the first closed position and the second closed position, respectively, and the safety interlock is further configured to electrically decouple the received power signal from the at least one thermostat and the in-floor heating element in response to at least one of the first switch and the second switch being in the first open state or the second open state, respectively.