A new fan and an anti-cold air control method and apparatus therefor, the method comprising the following steps: during the process of a new fan switching from a heating mode to a cooling mode, acquiring in real time the set temperature and air supply temperature of the new fan and the middle-portion temperature of the indoor heat exchanger of the new fan (S1); acquiring the current output wind speed and the set wind speed of the new fan (S2); and adjusting the output wind speed of the new fan on the basis of the set temperature, the air supply temperature, the middle-portion temperature of the indoor heat exchanger, the current output wind speed, and the set wind speed (S3).

A system and method for heating and/or cooling at least one space uses a second heat transfer fluid which comprises or consists of water, at least one first encapsulated phase change material and at least one second encapsulated phase change material, wherein the first phase change material has a phase change temperature which is lower than the phase change temperature of the second phase change material. At least two indoor heat exchangers are employed, wherein each of the at least two indoor heat exchangers has a temperature sensor configured to determine a temperature information of the indoor space in which the indoor heat exchanger is located. A controller is employed which receives a temperature information from the temperature sensors and controls the system based on said temperature information. The system and method show an improved efficiency in heating and/or cooling at least one space compared to known systems and methods.

A controller for a heating, ventilation, and/or air conditioning (HVAC) system is configured to detect an input voltage received as a power supply by the HVAC system, determine the input voltage exceeds a threshold value, and identify a voltage variation event based on determining that the input voltage exceeds the threshold value.

A controller for a building control system includes processors and memory storing instructions that, when executed by the processors, cause the processors to perform operations including identifying zones within a building, analyzing data associated with the zones, and generating zone groupings based on the data associated with the zones. Each of the zone groupings define zone groups and specify which of the zones are grouped together to form each of the zone groups. The operations also include identifying a particular zone grouping from zone groupings based on the data associated with zones and using the particular zone grouping to generate control signals to operate equipment of the building control system to provide heating or cooling to the zones.

Various ways to control the ambient temperature of a room in a structure are described. In one embodiment, a method for intelligently controlling an ambient room temperature in a structure is described, comprising receiving a future outdoor temperature forecast related to a geographic area where the structure is located, and altering a temperature profile for controlling the ambient room temperature based on the future outdoor temperature forecast.

A heat source system includes heat source apparatuses each with refrigerant circuit and water heat exchanger. A water supply header pipe merges and supplies, to a load, water flowing in from the heat exchangers. A water return header pipe splits, into the heat exchangers, water flowing in from the load. Pumps feed water to the heat exchangers. A bypass pipe with bypass valve connects the supply and return header pipes. A differential pressure gauge measures a water pressure difference between supply and return. A controller determines the number of heat source apparatuses to operate, from heat generated by refrigerant circuits and heat required, determines whether an operating frequency of the pump connected to a heat source apparatus to be operated is a minimum frequency, and controls the pump operating frequency and/or an opening degree of the bypass valve such that the water pressure difference falls within a target range.

An air conditioner, a control device thereof, and a method of controlling the same are provided. The air conditioner includes a control device including a plurality of indoor unit operation changers, and an indoor unit connected to any one of the plurality of indoor unit operation changers, where at least one of the indoor unit and the control device determines an operation mode of each of the plurality of indoor unit operation changers respectively connected to a plurality of indoor units, detects an indoor unit operation changer at an operation mode corresponding to an operation of any one of the plurality of indoor units among the plurality of indoor unit operation changers, and determines an indoor unit operation changer connected to the indoor unit among the plurality of indoor unit operation changers on based on a result of detecting at least one of the indoor unit operation changers.

The present disclosure discloses a ventilation management system for outdoor products, a sleeping bag, and a chair. The ventilation management system for outdoor products comprises a ventilation chamber, a temperature adjustment device, and a mobile power supply. The ventilation chamber is flexible and integrally arranged on the outdoor products, and a side of the ventilation chamber configured to face a human body comprises a plurality of air outlets. The temperature adjustment device comprises a fan and a control module, and the temperature adjustment device is electrically connected to the mobile power supply. The temperature adjustment device is configured to supply cool or warm air to the ventilation chamber, and the cool or warm air is configured to be blown onto the human body via the plurality of air outlets after entering the ventilation chamber. Each of the sleeping bag and the chair comprises the ventilation management system.

An air conditioner of present invention comprises a housing having an outer panel forming the exterior and an opening formed on the outer panel, a heat exchanger configured to exchange heat with air flowing into the housing, and a door unit configured to open or close the opening by moving forward or backward from the opening through which the heat exchanged air is discharged. Wherein the door unit comprises a door blade configured to open or close the opening, a door operating part configured to move the door blade forward or backward, and a controller configured to control the air discharged from the opening to be moved forward from the opening in a straight line or to be discharged radially from the opening by controlling a distance between the door blade and the opening.

In the field of building and of cooling systems there is disclosed a wall-mounted radiant cooling device for rooms, including: at least two cooling tubes positioned on two different levels adapted for cooled water to flow through; a fixing unit of the cooling tubes to the outside of the walls of the rooms. Each cooling tube includes two shaped longitudinal fins, and the radiant cooling device further includes a channel, arranged parallel to and underneath the cooling tubes, adapted to collect the condensate that is generated through contact with the hot air present in the rooms provided with the cooling tubes. The longitudinal fins of the cooling tubes are adapted to cooperate with one another to convey the condensate into the channel.