US Patent Issued to Lennox Industries on Dec. 9 for "Diagnostics of outdoor unit of HVAC system based on sound signatures" (Texas Inventors)

ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,492,835, issued on Dec. 9, was assigned to Lennox Industries Inc. (Richardson, Texas).

"Diagnostics of outdoor unit of HVAC system based on sound signatures" was invented by Payam Delgoshaei (Addison, Texas), Sridhar Venkatesh (Irving, Texas) and Eric Berg (The Colony, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for heating, ventilation, and air conditioning (HVAC) system diagnostics includes sending a first instruction to a thermostat to shut down an HVAC system. A user is instructed to minimize background noise. A second instruction is sent to the thermostat to turn on the HVAC system. A third instruction is sent to the thermostat to ...