ALEXANDRIA, Va., June 19 -- United States Patent no. 12,331,946, issued on June 17, was assigned to Mitsubishi Electric Corp. (Tokyo).
"Air-conditioning system" was invented by Nobuhiro Wada (Tokyo), Naofumi Takenaka (Tokyo), Yuji Motomura (Tokyo) and Takuya Ito (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "An air-conditioning system comprising: a heat source side unit; a use side unit; a relay unit; a refrigerant circuit; a water circuit; a controller configured to operate in a trial operation mode, and configured to operate in a normal operation mode; a first setting unit; a second setting unit; and a third setting unit, wherein the controller is configured to invalidate an error that occurs in the...