US 12,460,834 B2
Constant temperature systems
Fei Zhao, Beijing (CN); Ye Zhao, Beijing (CN); Hongyu Li, Beijing (CN); and Kai Qi, Beijing (CN)
Assigned to COCLEAN Technologies, Co., Ltd., Beijing (CN)
Filed by COCLEAN Technologies, Co., Ltd., Beijing (CN)
Filed on Oct. 31, 2022, as Appl. No. 17/977,004.
Claims priority of application No. 202210970504.0 (CN), filed on Aug. 12, 2022.
Prior Publication US 2024/0053039 A1, Feb. 15, 2024
Int. Cl. F24F 11/49 (2018.01); F24F 11/52 (2018.01); F24F 11/65 (2018.01); F24F 11/88 (2018.01); F24F 110/10 (2018.01)
CPC F24F 11/49 (2018.01) [F24F 11/52 (2018.01); F24F 11/65 (2018.01); F24F 11/88 (2018.01); F24F 2110/10 (2018.01)] 16 Claims
OG exemplary drawing
 
1. A constant temperature system, comprising:
a second thermostat for replacing a first thermostat configured to control a heating, ventilation, and air conditioning (HVAC) system; and
a terminal device having an application program for guiding installation of the second thermostat, wherein the terminal device includes a display screen, and the application program is configured to:
obtain a first wiring connection mode between the HVAC system and the first thermostat, and determine a system configuration of the HVAC system according to the first wiring connection mode;
determine a second wiring connection mode between the second thermostat and the HVAC system according to the system configuration, and output the second wiring connection mode on the display screen;
determine a type of an energy source for driving the HVAC system to operate; and
obtain control logic matching the system configuration and the type of the energy source to enable the second thermostat to control the HVAC system according to the control logic, wherein the second thermostat and the HVAC system are connected in the second wiring connection mode;
wherein after the second thermostat is connected in the second wiring connection mode and before the HVAC system starts to operate, the second thermostat is further configured to check a wiring connection state of the second thermostat;
wherein the second thermostat is configured to:
detect whether a wire is inserted into Rh connection terminal of the second thermostat, to determine whether the HVAC system is a single power supply HVAC system;
in response to detecting that a wire is inserted into Rh connection terminal of the second thermostat, disconnect Rc connection terminal and Rh connection terminal of the second thermostat; and
in response to detecting that no wire is inserted into Rh connection terminal of the second thermostat,
issue a message to prompt a user to check whether a Rh wire of the HVAC system has forgotten to be inserted,
in response to determining that the message has been sent for a predetermined time period, detect again whether a wire is inserted into the Rh connection terminal,
in response to detecting again that there is no wire inserted into the Rh connection terminal, determine that the HVAC system is a single power supply HVAC system, and
connect the Re connection terminal to the Rh connection terminal.