An air conditioner that further provides a lighting function is provided. The air conditioner can increase space utilization of a ceiling by the lighting device being integrally installed in the indoor unit. In addition, heat generated at the lighting device can be radiated by the cooling structure provided in the indoor unit, and thereby overheating of the lighting device can be prevented. The air conditioner includes a blowing fan configured to flow air, a housing in which an intake port is formed to suction air by the blowing fan, a lighting device provided in the housing, and a cooling channel configured to guide the air suctioned by the blowing fan to pass the lighting device.

Systems and methods for controlling the ambient temperature within a region or zone of a building are disclosed. A system comprises a thermostat, one or more sensors placed throughout an environment, a computing cloud, and a remote mobile or desktop device running a software application (app). An end user may interact with an app running on the mobile device or desktop. The app may display the current conditions in a house and allow the user to select specific temperature sensors located throughout the house which the user wants to monitor and control. This selection of one or more temperature sensors is communicated to the computing cloud, and the computing cloud sends commands to the thermostat to monitor the user's selected temperature sensors for controlling the heating and cooling of the house.

A universal Variable Multi Flow system includes a hosing comprising a frame and a plurality of insulated panels; a fresh air inlet damper configured to regulate an air flow; a return air inlet damper; a fresh air inlet filter coupled to the fresh air inlet damper; a return air inlet filter coupled to the return air inlet damper; a counter flow plate heat exchanger with a bypass damper configured to extract cool/heat/humidity from the air; at least one supply and at least one return air fan configured to support circulation of the air through the VMF; a supply coil configured to re-cool or re-heat the air in separate enclosed areas; at least one brushless DC (BLDC) scroll compressor configured to produce warm or cold refrigerant; at least one variable frequency drive configured to control capacity of the at least one BLDC scroll compressor; and an Intelligent Control Box-Master Controller configured to control operations of the VMF system.

A position information antenna 22b receives a position signal including position information about a sending source (satellite, base station, or the like) of a positioning radio wave. A communication antenna 22a transmits position information about a compressor 100 (air compressor) that compresses the air and receives meteorological information corresponding to the position of the compressor 100 from a server on a cloud. A controller 13 specifies the position of the compressor 100 from the position signal received by the position information antenna 22b and controls the compressor 100 on the basis of the meteorological information corresponding to the position of the compressor 100 received by the communication antenna 22a.

For controlling opening (B2) of a valve in an HVAC system to regulate the fluid flow through a thermal energy exchanger and adjust power transfer of the thermal energy exchanger, a control system sets (S6) a control signal for the valve to different setpoints and records (S1) a plurality of data points. Each data point includes for a certain setpoint operating data values related to the power transfer effectuated by the thermal energy exchanger with the control signal set to the certain setpoint. The control system determines (S2) a fitting curve for the data points and determines (S3) a transformation which transforms the fitting curve into a transformed curve having a given target shape. The control system controls (B2) the opening of the valve by transforming (S5) the setpoint to a transformed setpoint, using the transformation, and setting (S6) the control signal for the valve to the transformed setpoint.

Methods and related systems of detecting a temperature deviation in a heat exchanger coil of a climate control system are disclosed. In an embodiment, the method includes determining an enthalpy of the indoor space. In addition, the method includes detecting a coil temperature of the heat exchanger. Further, the method includes detecting a coil temperature deviation based on the enthalpy and the detected coil temperature.

The present disclosure is directed to an air filter sensor system that can monitor a status of a filter and provide information to a remote system regarding the filter's status. The system can receive, by a computing server via one or more computer networks and from each of a plurality of sensor assemblies coupled to a corresponding plurality of air filters, information indicative of filter contamination levels respectively associated with each corresponding air filter of the plurality of air filters. Each of the respective filter contamination levels being provided by one sensor assembly of the plurality of sensor assemblies based at least in part on a difference in detected air pressure between first and second sides of the corresponding air filter. The system tracks the respective filter contamination levels over a first period of time and determines, by the computing server and based at least in part on the tracking of the respective filter contamination levels, a schedule for one or more maintenance events associated with a first air filter of the plurality of air filters.

An air conditioning assembly for an environmental chamber includes an air handling unit for supplying air to the environmental chamber. A plurality of ducts in fluid communication with the air handing unit and in fluid communication with the environmental chamber are configured to draw air from one side of the environmental chamber through at least one outlet vent, and to blow air into an opposite side of the environmental chamber through at least one equal but opposite inlet vent. At least one air conditioning means in fluid communication with the at least one air handling unit is configured to condition the air flow passing through the air handling unit. The at least one air conditioning means includes an altitude simulator for changing the oxygen content of the air flow. In use, the air conditioning assembly is configured to create substantially laminar air flow throughout the environmental chamber.

For controlling energy transfer (Q) of a thermal energy exchanger of an HVAC system, a control system determines flow-dependent model parameters (M) for modelling performance of the thermal energy exchanger, using a plurality of measurement data sets, each measurement data set including for a respective measurement time a value of a measured flow of fluid (?act), a value of a measured supply temperature (Tsup) of the fluid, and a value of the measured return temperature (Tret) of the fluid. The control system calculates an estimated energy transfer (Qest) of the thermal energy exchanger, using the flow-dependent model parameters (M), and controls (S4) the energy transfer (Q) of the thermal energy exchanger by regulating (S5) the flow of fluid (?) through the thermal energy exchanger, using the estimated energy transfer (Qest).

A temperature sensing system senses a temperature in the monitor space. The temperature sensing system includes a first detector, a second detector, and a processing unit. The first detector detects a temperature on a ceiling and outputs first information about the temperature on the ceiling. The second detector detects infrared radiation emitted from a floor and outputs second information about the infrared radiation from the floor. The processing unit calculates, based on at least the first information and the second information, a spatial temperature distribution which includes a component in a height direction with respect to the monitor space between the ceiling and the floor.