An air conditioner acquires an arrival required amount of time that is an amount of time required for a user to arrive at a building, calculates a time constant from when air conditioning of a room of the building is started until a temperature of the room reaches a target in-progress temperature that is a temperature reached prior to reaching a target temperature, the target in-progress temperature being determined based on a setting temperature of the room, calculates, based on the time constant, an air conditioning required amount of time from when the air conditioning of the room is started until the temperature of the room reaches the target temperature, and starts an air-conditioning operation when the acquired arrival required amount of time is equal to or shorter than the air conditioning required amount of time.

An air conditioner acquires an arrival required amount of time that is an amount of time required for a user to arrive at a building, calculates a time constant from when air conditioning of a room of the building is started until a temperature of the room reaches a target in-progress temperature that is a temperature reached prior to reaching a target temperature, the target in-progress temperature being determined based on a setting temperature of the room, calculates, based on the time constant, an air conditioning required amount of time from when the air conditioning of the room is started until the temperature of the room reaches the target temperature, and starts an air-conditioning operation when the acquired arrival required amount of time is equal to or shorter than the air conditioning required amount of time.

An air conditioning ventilation system includes an air conditioner, a ventilator, and a control unit. The control unit controls operations of the air conditioner and the ventilator. The control unit causes the air conditioner to perform a compensation operation in order to compensate for a change in at least one of indoor temperature and humidity due to a ventilation operation prior to the ventilation operation to be performed by the ventilator.

The air processing device is provided with a processing unit that determines the state of a predetermined part(s) in a casing on the basis of the change in a plurality of image data acquired by an imaging unit.

The air processing device is provided with a processing unit that determines the state of a predetermined part(s) in a casing on the basis of the change in a plurality of image data acquired by an imaging unit.

The current application is directed to intelligent controllers that continuously, periodically, or intermittently monitor progress towards one or more control goals under one or more constraints in order to achieve control that satisfies potentially conflicting goals. An intelligent controller may alter aspects of control, dynamically, while the control is being carried out, in order to ensure that goals are obtained and a balance is achieved between potentially conflicting goals. The intelligent controller uses various types of information to determine an initial control strategy as well as to dynamically adjust the control strategy as the control is being carried out.

A method for calibrating a product valve disposed along a flow path in a duct, with a calibration valve in a duct remote from the product valve and having a geometric shape and operational parameters corresponding to those of the product valve. A calibration controller establishes calibration conditions and, in responsive thereto, generates a calibration flow rate (CFM) function by measuring for the calibration valve, a sparse set of flow rates and determining a surface-fit mathematical representation of fluid flow through the calibration valve over applied calibrated flow rates and the measured pressure drops. The CFM Function is transferred to a product blade controller, which in turn, processes the representation of the mathematical surface, and controls fluid flow through product valve based on values extracted from the received CFM Function as well as at least one parameter control signal indicative of a desired set point.

The system of the present disclosure reduces the temperature of any air conditioning condenser/radiator, either through retrofit or by original manufacturing. The system is connected to a water supply for pre-cooling ambient air drawn into the air conditioning unit by providing a misting spray of water that evaporates rapidly to cool the air conditioning condenser. The system has a water supply connection connected to the water supply, a water treatment assembly for treating aspects of the water supplied, and a water delivery assembly that receives clean water from the water treatment assembly and delivers the misting spray proximate the air conditioning unit. The system may be controlled by using a wireless technology such as a Z-wave or other type of wireless controller and one or more sensors.

A heating, ventilation, air conditioning, and refrigeration (HVACR) protection system can include a pressure sensor operable to sense a pressure within a refrigerant line operably coupled to a compressor; a timer; and a protection system controller. The protection system controller can be in communication with the pressure sensor, the timer, and a compressor controller operable to control operation of the compressor. The protection system controller can disable the compressor controller from operating the compressor until successful completion of a vacuum test of at least the refrigerant line. The protection system controller can be configured to initiate the vacuum test upon the pressure sensor sensing the pressure of the refrigerant line less than or equal to a vacuum test pressure, at which point the timer begins timing for a vacuum test time period. The vacuum test can be successfully completed upon expiration of the vacuum test time period and the pressure of the refrigerant line remained less than or equal to the vacuum test pressure for the duration of the vacuum test time period. Additionally, the protection system controller can be configured to enable operation of the compressor controller to operate the compressor upon successful completion of the vacuum test.

Building management systems and methods are described herein which augment predicted weather data with an external model of a built environment to calculate wind infiltration into a specific building or wind conditions at a building site. The wind infiltration can be used to predict the performance characteristic of at least one energy consuming component installed in the building, whereas the wind conditions can be used to determine whether the calculated wind conditions exceed a safety threshold.