Abstract: An air-conditioning apparatus includes a casing provided with an air inlet through which air is sucked and an air outlet through which the air is blown out, heat exchangers being connected in parallel, and causing heat exchange to be performed between the air sucked from the air inlet and refrigerant, fans each sending the air to a corresponding one of the heat exchangers, and a controller. The controller controls the fans so that they have different rotational speeds.

Abstract: A transport climate control system for providing climate control to a climate controlled space of a transport unit. The transport climate control circuit includes a compressor, an evaporator and at least two fans. The transport climate control circuit also includes a controller for controlling the transport climate control circuit and for defrosting the evaporator coil. When a defrost event is triggered, the controller instructs the transport climate control circuit to supply heat to or around one section of the evaporator coil, and independently controls each of the at least two fans to move the air around the evaporator coil in a controlled direction so that heat from the one section of the evaporator coil is used to convectively heat the inlet of the evaporator coil.

Abstract: A heat exchanger includes a plurality of fins and a plurality of tubes that are inserted into the fins and that allow refrigerant to flow in the tubes. The tubes include first heat transfer tubes and second heat transfer tubes. Each of the first heat transfer tubes includes grooves formed in an inner surface of the first heat transfer tube, and has an inside diameter Da and a groove depth Ta. Each of the second heat transfer tubes has an inner surface smoothed, has an inside diameter Db, and is connected to an associated one of the first heat transfer tubes. Da?2×Ta?Db is satisfied.

Abstract: An information processing device includes a control unit. The control unit extends an operating time of an air conditioner provided in a vehicle when the control unit determines that a user is present within a predetermined range from the vehicle at a predetermined timing when a predetermined operating time has elapsed from a start of pre-air conditioning inside the vehicle by the air conditioner.

Abstract: The present invention provides a heating, ventilation, and air-conditioning (HVAC) system using an A2L refrigerant and a method of installing the HVAC system in a building. The HVAC system includes an indoor unit having a heat exchanger that uses an A2L refrigerant, a blower, an outdoor unit, an A2L control board, and one or more A2L sensors configured to detect an amount of A2L refrigerant. In one or more embodiments, the indoor unit is electrically coupled to the blower, the A2L control board, and the outdoor unit. Also, in one or more embodiments, the A2L control board is also electrically coupled to the blower and the one or more A2L sensors.

Abstract: Disclosed by the present application are a refrigerator, and a method and a device for controlling the refrigerator. The method includes detecting and confirming that a refrigerator is in a first control cycle after defrosting; detecting and confirming that an ice making evaporator requests cooling, and controlling a control valve to be in communication with an ice making circuit. The method controls the refrigerant to preferentially enter the ice making circuit after the refrigerator defrosts, thereby effectively reducing the time that an ice making compartment is in a high-temperature state due to defrosting, and decreasing the risk that ice cubes might be adhered to each other due to ice cubes melting and then re-freezing. As a result, the long-term high-quality storage of ice cubes is achieved.

Abstract: A method to manage defrosting of a refrigeration plant provided with at least one compressor and at least one evaporator, including defining a plurality of defrosting modes, which can be selected by the manufacturer and/or by the end user, which are based on one or more functioning parameters of the refrigeration plant; such functioning parameters are detected by detection probes provided in the refrigeration plant such as pressure switches, thermostats, timing devices or other, associated with the compressor and/or the evaporator, or other; and memorizing the plurality of defrosting modes in an electronic device to manage the defrosting.

Abstract: A heat pump system control method for a vehicle includes a process (A) of operating a compressor of an air conditioner to cool or heat an interior of the vehicle while the vehicle is driving, measuring by a controller initial states of the compressor and a refrigerant based on data detected from a data detector, and monitoring the compressor, a process (B) of determining by the controller whether a current coil temperature of a motor unit provided in the compressor is higher than a coil specification temperature through the process (A) and operating a protection mode; and a process (C) of, when the process (B) is completed, calculating by the controller a slope of a coil temperature of the motor unit over time, determining whether the temperature slope is greater than zero (0) three times consecutively to stop the operation of the compressor, and terminating control.

Abstract: An air conditioner and a method for controlling an air conditioner are provided capable of minimizing noise generation. The air conditioner may include an indoor motor configured to drive a fan to blow indoor air and an outdoor motor configured to drive a fan to blow outdoor air. In addition, the air conditioner may include a controller configured to set a rotational speed of the indoor motor to drive a fan to blow indoor air based on operation modes and a maximum rotational speed of the outdoor motor to drive a fan to blow outdoor air and change a rotational speed of the outdoor motor within a range not exceeding the maximum rotational speed based on indoor environment information and a user-set value.

Abstract: A device is configured to operate a Heating, Ventilation, and Air Conditioning (HVAC) system. The device is further configured to receive a temperature value and determine a load demand value based on the temperature value. The device is further configured to determine the load demand value is greater than the load capacity value for the HVAC system and, in response, identify a first setting from among a first plurality of settings for the HVAC system. By default, access to the first plurality of setting for the HVAC system is restricted for a user. The device is further configured to receive a response approving permission to operate the HVAC system using the first setting to the user and send a trigger signal to an HVAC controller to operate the one or more components of the HVAC system using the first setting.

Abstract: A controller configured to selectively set a reversible heat pump assembly (100) in either a heating mode or in a cooling mode is presented. The controller comprising a control circuit (44) configured to: for a time period, determine, using a demand determining function (50), a heating demand for heat from one or more local heating circuits (140) connected to the reversible heat pump assembly (100) and a cooling demand for cold from one or more local cooling circuits (140) connected to the reversible heat pump assembly (100); generate, using a control function (52), a control signal indicative of if the reversible heat pump assembly (100) is to be set in either the heating mode or in the cooling mode, wherein the control function is configured to use the heating demand and the cooling demand as input data; and send, using a transmission function (54), the control signal to a heat pump (110) of the reversible heat pump assembly (100).

Abstract: A control device for an HVAC system is provided. Embodiments of the present disclosure generally relate to control devices that facilitate adjustment of heating and cooling setpoints. In one embodiment, the control device allows for concurrent adjustment of the heating and cooling setpoints while maintaining a desired deadband value therebetween.

Abstract: A portable display apparatus for conveying vehicle-related information using thermal and haptic touch is provided. The portable display apparatus includes circuitry communicatively coupled to a temperature control unit of the portable display apparatus. The circuitry receives from one or more first sensors associated with a vehicle, first temperature information associated with an interior space of the vehicle or an ambient environment of the vehicle and determines a temperature setting based on received first temperature information. The circuitry detects a physical-contact between the portable display apparatus and one of a skin portion or a cloth portion worn by a user. Thereafter, the circuitry controls the temperature control unit based on the determined temperature setting and the detected physical-contact.

Abstract: The disclosure provides a networking method and a networking device for an air conditioner, and a terminal, wherein the networking method includes: acquiring indoor unit information of a target air conditioner indoor unit of an air conditioner by a remote controller; matching an air conditioner outdoor unit corresponding to the target air conditioner indoor unit; and establishing a communication connection between the target air conditioner indoor unit and the matching air conditioner outdoor unit.

Abstract: A safety protection method based on a vehicle-mounted air conditioner of a new energy vehicle, including: detecting a running state of the vehicle; if the vehicle stops running, performing human body detection; when a person is detained in the vehicle, detecting a staying time of the person detained in the vehicle; after the staying time exceeds a reasonable time, alerting an associated contact person that the detention person is left behind in the vehicle, and simultaneously performing temperature monitoring, time monitoring and power monitoring. A safety protection system based on a vehicle-mounted air conditioner is also disclosed.

Abstract: Air conditioner units and methods of operating the same are provided. A method of operating an air conditioner unit includes determining a fan speed as a function of a compressor speed of a variable speed compressor of the air conditioner unit. The method also includes activating a variable speed fan of the air conditioner unit at the fan speed. An air conditioner unit may include a controller, and the controller may be configured for performing the method.

Abstract: A constant temperature air circulation system is provided. Air valves are installed behind two three-way nodes of a main circulation loop and parallel bypasses to adjust a flowing amount of gas of each branch. When a compressor keeps a current state unchanged, a draught fan and air valves do not change. When the compressor needs to be turned on and then to be turned off, an air volume of the draught fan is adjusted, and the flowing amounts of the bypasses and a main circuit are simultaneously adjusted until the air valves that control a flowing amount of an evaporator are all closed and the air valves of the bypasses are all opened. Adjustment of the air valves and state switching of the compressor are made at the same time, so that the flowing amount flowing through a heater to a chamber is ensured to always remain unchanged.

Abstract: A hybrid system and method for conditioning air for an enclosed space can include a direct cooling system in combination with an indirect cooling system. The hybrid system can use direct cooling when ambient temperature and humidity levels are such that 100% outdoor air can be delivered to the enclosed space. The hybrid system can use indirect cooling when 100% of the return air can be conditioned using an external cooling unit and then returned to the enclosed space as supply air. The external cooling unit can include an evaporative cooler and operate in a dry mode and a wet mode. The external cooling unit can produce a reduced temperature cooling fluid and provide liquid cooling to the air when the system is operating in the indirect mode, and in some cases, in the direct mode. The hybrid system can operate in a mixed mode in which the external cooling unit is off and a mix of return air and outdoor air can be delivered to the enclosed space.

Abstract: In order to provide a method for de-icing a heat exchanger of a motor vehicle, which prevents large amounts of melt water from a defrosting process running onto the floor or the road beneath the motor vehicle, freeze again and pose a risk of injury to pedestrians, in a method for defrosting a heat exchanger of a motor vehicle, in which, for a heat exchanger arranged in a motor vehicle, a defrosting process for removing a layer of frozen water or frost formed on a surface of the heat exchanger is carried out, the defrosting process comprising heating the surface, and melt water being produced, it is proposed that the amount of melt water discharged onto a local region of a floor beneath the motor vehicle is limited to a maximum value.

Abstract: A manifold assembly includes a body and a damper assembly. The body defines a first opening, a second opening, outlet third opening, and a fluid plenum. The fluid plenum fluidly couples the first opening, the second opening, and the third opening. The damper assembly includes a first damper, a second damper, and a connecting member. The first damper is disposed within the fluid plenum proximate to the first opening. The second damper is disposed within the fluid plenum proximate to the second opening. The connecting member is coupled to both the first damper and the second damper and is configured to move the first damper and the second damper to selectively open one of the first opening or the second opening while closing the one not opened.