According to one embodiment, a control device for an air conditioner which is communicably connected to first and second terminal devices to be used by first and second users is provided. The control device includes a processor. The processor configured to receive a first personal set temperature which is a temperature set by the first user by operating the first terminal device, receive a second personal set temperature which is a temperature set by the second user by operating the second terminal device, and determine a set value of the air conditioner based on the first personal set temperature and the second personal set temperature.

Apparatus, systems and methods for ascertaining the occupancy of a building are presented. The building is divided into one or more control zones which correspond to physical areas of the building associated with controllable modules, such as HVAC units, lighting, irrigation, or other environmental features such as fountains, music, video, and the like. Zone parameters define how zone devices shall react to the number of occupants located in the particular zone. A building control system detects individual mobile devices in and around the building, and determines the locations of each device by using trilateration and/or location services. The identified mobile devices act as proxies for building occupants. The locations of these devices are correlated with the locations of the zones in the building, and the building control system then adjusts the operating parameters of the zone based on the number of devices present in the zone.

An air conditioning apparatus including a storage unit that stores therein a setting table in which a schedule of an air conditioning operation for one week is set, and a control unit that executes operation control according to the schedule in the setting table, the air conditioning apparatus including a remote controller that sets operation information of a target time slot as a part of one week, and a temporary storage unit that temporarily stores therein the set operation information of the target time slot, wherein the control unit executes operation control based on the operation information of the target time slot stored in the temporary storage unit in priority to the schedule in the setting table.

Devices, methods, and systems for determining the cause of a fault in a heating, ventilation, and air conditioning (HVAC) system are described herein. One device includes a memory, and a processor configured to execute executable instructions stored in the memory to receive operational data associated with an HVAC system, receive control logic associated with a controller of the HVAC system, determine a cause of a fault occurring in the HVAC system based, at least in part, on the operational data associated with the HVAC system and the control logic of the controller of the HVAC system, and provide the cause of the fault occurring in the HVAC system to a user.

Improved systems for heating and cooling a space may include a heating and cooling unit for providing heating and cooling functions mounted inside a housing assembly and a display unit mounted to the housing assembly. A control unit may be coupled to the heating and cooling unit and the display unit. The control unit may be operative to cause an image or video associated with heat be displayed on the display unit when the heating and cooling unit is in the heating mode of operation and to cause an image or video associated with coolness be displayed on the display unit when the heating and cooling unit is in the cooling mode of operation. The control unit may be coupled to a server that enables remotes operation of the system via a client application. Other implementations also may be provided.

There is described a system and method for configuring, commissioning and troubleshooting an HVAC unit. A unit type configuration is established based on a type of HVAC system and temperature data, humidity data, and/or indoor air quality data. A fan configuration is established based on whether a variable frequency drive fan is identified. Cooling and heating stage configurations are established based on a compressor parameter and a heating stage parameter. An available auxiliary termination is identified in response to establishing the configurations. A safety is assigned to the available auxiliary termination in response to identifying the available auxiliary termination. An IO table is provided to an HVAC controller, which includes physical input/output assignments for the terminations of the HVAC controller based on the configurations and the assigned safety. For another embodiment, the fan configuration is established based on one of a traditional stage blower fan or variable frequency drive fan.

There is described a system and method for configuring, commissioning and troubleshooting an HVAC unit. A unit type configuration is established based on a type of HVAC system and temperature data, humidity data, and/or indoor air quality data. A fan configuration is established based on whether a variable frequency drive fan is identified. Cooling and heating stage configurations are established based on a compressor parameter and a heating stage parameter. An available auxiliary termination is identified in response to establishing the configurations. A safety is assigned to the available auxiliary termination in response to identifying the available auxiliary termination. An IO table is provided to an HVAC controller, which includes physical input/output assignments for the terminations of the HVAC controller based on the configurations and the assigned safety. For another embodiment, the fan configuration is established based on one of a traditional stage blower fan or variable frequency drive fan.

An all-inclusive fluid flow device that can variably magnify differential pressure, measure, and control a flow of a fluid is described. Various procedures, including measuring, controlling, balancing, or calibration procedures can leverage a variably magnified differential pressure measurement. Differential pressure measurements can be measured across the fluid flow device such that a first pressure measurement is taken upstream of the fluid flow device while a second pressure measurement is taken downstream of the fluid flow device. Moreover, one or more of the various pressure measurements, and in particular the downstream pressure measurement, can be performed at stagnation zone where the flow has stagnated. Such can provide significant magnification and/or turndown capabilities and the magnification can vary based on a damper position and/or apertures dimensions.

An air conditioner and a method for controlling air conditioner communication are disclosed. The air conditioner includes an indoor unit, an outdoor unit, and a temperature protector. The indoor unit includes an indoor control device and an indoor communication device. The outdoor unit includes an outdoor control device and an outdoor communication device. The temperature protector includes a temperature control device and a temperature control communication device. The temperature control device is configured to output a temperature control setting parameters. The temperature control communication device is coupled with the temperature control device. The temperature control communication device is configured to receive the temperature control setting parameters, generate a fifth high-frequency signal carrying the temperature control setting parameters based on the temperature control setting parameters, and load the fifth high-frequency signal to the power communication line, so as to output the temperature control setting parameters.

An air conditioner and a method for controlling air conditioner communication are disclosed. The air conditioner includes an indoor unit, an outdoor unit, and a temperature protector. The indoor unit includes an indoor control device and an indoor communication device. The outdoor unit includes an outdoor control device and an outdoor communication device. The temperature protector includes a temperature control device and a temperature control communication device. The temperature control device is configured to output a temperature control setting parameters. The temperature control communication device is coupled with the temperature control device. The temperature control communication device is configured to receive the temperature control setting parameters, generate a fifth high-frequency signal carrying the temperature control setting parameters based on the temperature control setting parameters, and load the fifth high-frequency signal to the power communication line, so as to output the temperature control setting parameters.