Abstract: A switching device for a multi-split air conditioner, comprising: a housing, a gas-liquid separator, multiple first indoor unit interface pipes, at least one heat exchange component, and multiple second indoor unit interface pipes. The gas-liquid separator is provided with an inlet to an outdoor unit, a first outlet, and a second outlet. The multiple first indoor unit interface pipes and the multiple second indoor unit interface pipes are spaced from each other in a first direction. The first outlet is connected to multiple first interfaces by means of the multiple first indoor unit interface pipes, respectively. The first and second indoor unit interface pipes are spaced apart in a second direction. Some of the first and second indoor unit interface pipes are spaced apart from the rest of the first indoor unit interface pipes and the rest of the second indoor unit interface pipes in the second direction.

Abstract: In a heating and hot water supply device including a burning means, a first heat exchanger, a circulation passage for circulating a heating thermal medium, a circulation pump, a first bypass passage, a second heat exchanger for hot water supply, a hot water supply passage, a distribution means at a branching portion of the first bypass passage, and a second bypass passage bypassing the second heat exchanger, a flow rate adjustment means for adjusting a bypass flow rate in the second bypass passage is provided. The distribution means is capable of adjusting its distribution ratio for heating, or hot water supply, or simultaneous heating/hot water supply. All passage connection portions on the second heat exchanger were provided on its one side portion.

Abstract: In a heating and hot water supply device including a burning means, a first heat exchanger, a circulation passage for circulating a heating thermal medium, a circulation pump, a first bypass passage, a second heat exchanger for hot water supply, a hot water supply passage, a second bypass passage bypassing the second heat exchanger, a control unit, and an operating terminal, a distribution means is provided at a branching portion of the first bypass passage and is capable of adjusting its distribution ratio for heating, or hot water supply, or simultaneous heating/hot water supply, a display means of the operating terminal is capable of providing displays corresponding to various types of operation.

Abstract: A facility is provided for controlling climate settings for a space. The facility includes ascertaining by a cognitive control, thermal-comfort-related data for one or more individuals within the space, and determining climate settings for a climate system of the space using, at least in part, the thermal-comfort-related data of the individual(s) within the space. In addition, the facility includes identifying, by the cognitive control, a climate adjustment to be made for an individual of the individual(s) based, at least in part, on thermal-comfort-related data acquired for the individual, and based on identifying the climate adjustment, automatically controlling one or more climate adjusting devices of the climate system associated with a location of the individual within the space to enhance climate of the individual within the space.

Abstract: Human detection devices 8 that detect the number of people in conditioned spaces supplied with conditioned air from the use side heat exchangers 12 and control means 9 and 50 that controls an amount of refrigerant supplied to the use side heat exchangers 12 by controlling opening degrees of the expansion devices 5 on the basis of detection results of the human detection devices 8.

Abstract: In a central air-conditioning system and method, a distribution mechanism distributes warm air or cool air generated by an air-conditioning unit to a plurality of rooms in a house. A control device controls the distribution mechanism to adjust a temperature of each room. A plurality of room terminals are provided as a device each dedicated to a room. Each room terminal receives an input of a preset temperature for the room and detects temperature of the room, and outputs the received preset temperature and the detected room temperature to the control device. The control device judges whether or not a specified room terminal is mounted in a specified room, based on a transition of control of the distribution mechanism in the specified room and a change in the detected temperature. The control device stops air-conditioning the specified room when judged that the specified room terminal is not mounted in the specified room.

Abstract: A rotational speed Cr of a compressor 21 during a defrosting operation is controlled within a control range that corresponds to a capacity ratio P, a total sum Pi of rated capacity of an indoor unit, or a refrigerant pipe length Lr. Accordingly, even in the case where a refrigerant circulation amount during the defrosting operation is reduced due to an installation state of an air conditioner 1, it is possible to prevent suction pressure from being significantly reduced and falling below a performance lower limit value of the compressor 21. Thus, damage to the compressor 21 can be prevented. In addition, it is possible to prevent a case where the suction pressure falls below the performance lower limit value of the compressor 21 and thus low-pressure protection control is executed. Therefore, a case where the restoration of the heating operation is delayed does not occur.

Abstract: An air conditioner, according to one embodiment of the present invention, comprises: a communication unit for receiving, from a terminal staying in a zone, first information of the terminal, including information on a previous staying time of the terminal in the zone; and a control unit for determining second information of the terminal, which contains an expected leaving time of the terminal, on the basis of the first information of the terminal and determining an operating mode and an operating time of the air conditioner on the basis of the second information of the terminal, and thus energy can be saved while minimizing a decline in the sensation of comfort felt by an occupant.

Abstract: A split air conditioning system for conditioning a plurality of zones within a single living area of a building, that includes a single outdoor unit; a refrigerant flow pathway made up of a plurality of refrigerant conduits having a common refrigerant flow path portion and at least two divergent flow path portions, a first divergent flow path and a second divergent flow path and the first evaporator and second evaporator are in parallel with one another; at least one throttling device; a portioning device configured to selectively and proportionately regulate the flow of a refrigerant fluid to the first evaporator and the second evaporator, respectively where the compressor is configured to be capable of simultaneously driving both the first evaporator and the second evaporator at their full cooling capacity.

Abstract: An apparatus for providing preconditioned air to at least one aircraft parked on the ground wherein internal heat exchangers lower or raise the discharge air temperature. The apparatus uses a main housing unit having a vent for air intake, a primary refrigeration system using a primary intake coil to precool or preheat the air in a primary intake plenum serving two blower intakes and two separate and independent blowers. Each blower discharge is then directed to a separate secondary plenum. Each secondary plenum uses a secondary refrigeration system to remove heat resulting from the blower and may further use a tertiary refrigeration system located downstream of the secondary system to provide further cooling or heating to achieve the desired air temperature. Each secondary plenum has an outlet for connection to parked aircraft. The apparatus can provide independent temperature, air pressure and airflow to two or more aircraft or provide appropriate temperature, air pressure and airflow to one aircraft.

Abstract: Optimum temperature in a room is controlled by directly and dynamically sensing the body temperatures of one or more people in the room and storing a set of parameters to be correlated with the sensed body temperatures in determining a selected optimum room temperature. The sensed body temperatures are wirelessly transmitted to be correlated with the set of parameters wherein optimum room temperature is determined based on those parameters. In response to this correlation, a selected optimum room temperature may be provided by appropriate heating or cooling.

Abstract: A multi-mode, bi-directional cascade heat pump system, according to some examples, includes at least two chillers each being part of a unidirectional refrigerant circuit. The system includes heat exchangers each of which are dedicated to operate as just a condenser or as just an evaporator, regardless of the system's operating mode. In some modes, a secondary fluid transfers heat between the condenser of one chiller and the evaporator of another chiller before the fluid returns to a secondary fluid source such as, for example, a geothermal borefield or a conventional water source. In some embodiments, fluid is withdrawn from a borefield by way of a pump having a speed that varies to maintain a desired fluid temperature and/or a desired heat transfer rate at the borefield. The heat pump system includes means for minimizing flow through the borefield and for minimizing unnecessary mixing of relatively high and low temperature fluid.

Abstract: Disclosed are a central control system and a method for setting a control point thereof. A central controller or a control point generator generates a control map in which control points are indicated, and the control points and attribute data of devices such as indoor units on the spot in actuality are automatically matched through a mobile terminal. Also, attribute data required for setting a control point is made into a database by using a dedicated tool such as the central controller or the control point generator, thus automatically setting control points. Also, the central control system can be installed by setting attribute data of the respective control points by using a wireless solution such as a mobile terminal, without having technical knowledge.

Abstract: A heat pump including a boiler is disclosed. The heat pump may include a quick-hot-water-supply tank and the boiler, which may be operated selectively based on a temperature of external air or an electric power rate per unit heat quantity.

Abstract: A thermostat management system facilitates an automatic pairing of a thermostat with a thermostat communication account. The thermostat management system receives a public network address associated with a computer device on a private network accessing the thermostat management account. The system retrieves the thermostat metadata including a public network address associated with a registration of the thermostat with the thermostat management system. The public network address registered with the thermostat metadata is provided by a router on the private network and therefore should match the public network address used by computer devices on the private network. The thermostat management account is paired with the thermostat if the thermostat has the same public network address as the computer device accessing the thermostat management account.

Abstract: Methods and system for facilitating multi-dimensional personal heating and cooling. User information is used as a mean to configure the temperature in a surrounding environment, thereby facilitating comfort for a user and, in the case wherein multiple users are accessing an area, classifying the area into a number of regions and maintaining each region at a different temperature and guiding the users to desired regions.

Abstract: An air-conditioning apparatus according to the present invention includes at least indoor heat exchangers. In response to a request to increase heat exchange performance from the indoor heat exchanger, the air-conditioning apparatus decreases a heat exchange capacity of an outdoor heat exchanger and controls an opening degree of an expansion valve corresponding to the indoor heat exchanger a to decrease a flow rate of a refrigerant that flows through the indoor heat exchanger.

Abstract: An interactive system for controlling an HVAC system includes a thermostat for initiating HVAC system operation in a full-capacity or reduced-capacity mode of operation, and a controller for an outside condenser unit having condenser fan and compressor motors. The controller may operate the compressor in a full-capacity or reduced-capacity mode. A controller for an indoor blower unit having a blower fan motor may operate the blower fan motor in a full-capacity or reduced-capacity mode. A communication means is provided for transmitting information between the outside condenser unit controller and indoor blower controller. The indoor blower controller responsively controls blower fan motor operation in a full-capacity or reduced-capacity mode based on the information received from the outdoor unit controller. The outdoor unit controller responsively controls compressor operation in a full-capacity or reduced-capacity mode based on the information received from the indoor blower controller.

Abstract: An interactive system for controlling the operation of an HVAC system is provide that comprises a thermostat for initiating the operation of the HVAC system in either a full capacity mode of operation or at least one reduced capacity mode of operation, and a controller for an outside condenser unit having a condenser fan motor and a compressor motor, the controller being capable of operating the compressor in a full capacity mode and at least one reduced capacity mode. The system also comprises a controller for an indoor blower unit having a blower fan motor, the controller being capable of operating the blower fan motor in a full capacity mode an at least one reduced capacity mode. The system further includes a communication means for transmitting information between the outside condenser unit controller and at least the indoor blower controller, where the information relates to the operation of the indoor blower and the outdoor condenser unit.

Abstract: To provide an air-conditioning apparatus that can prevent the formation of frost on indoor-side heat exchangers functioning as an evaporator even when the outside air temperature is low, and can use unmodified normal indoor units even when a portion of the indoor units is used in a place that has a large sensible heat load. An air-conditioning apparatus capable of simultaneous heating and cooling operation includes a heat source unit, a plurality of indoor units, and a relay unit that connects the heat source unit to the indoor units. A flow control unit that controls a flow amount of a refrigerant that flows through the indoor units that are in cooling operation is provided to a piping on the downstream side of a merging section of a piping through which flows the refrigerant that flows out from the indoor units that are in cooling operation.

Abstract: A pumped refrigerant cooling system for use in a row of equipment racks is configured to contain electronic equipment. The system includes a communication network and a refrigerant distribution unit in fluid communication with a chilled refrigerant supply and a heated refrigerant return. A cooling module is in fluid communication with the refrigerant distribution unit by a supply line and a return line. The cooling module is coupled to the communication network, and includes an evaporator and a fan configured to direct air over the evaporator. A sensor package is configured to monitor temperature and pressure reference points provided in the pumped refrigerant cooling system and the equipment racks. The system further includes a controller forming part of the cooling module and coupled to the communication network and the sensor package.

Abstract: A temperature control system for a container includes a refrigeration circuit having a primary fluid circulating therein and a secondary fluid circuit in communication with a first compartment of the container and a second compartment of the container. The secondary fluid circuit has a secondary fluid separate from the primary fluid circulating therein. The secondary fluid circuit includes a first heat exchange module in communication with an interior load space of the first compartment and a second heat exchange module in communication with an interior load space of the second compartment. Each of the first and second heat exchange modules includes a pump, a heater, a heat exchanger, and a three-way valve. A heat exchange interface between the refrigeration circuit and the secondary fluid circuit is operable to transfer heat from the secondary fluid to the primary fluid.

Abstract: A compression refrigeration system and evaporator having multiple circuits. Spray nozzles are provided for atomization and expansion of the refrigerant. The atomizing spray nozzles are interposed in each evaporator circuit and the nozzles are sized to distribute atomized refrigerant to the various evaporator circuits based on airflow rates across the associated circuit.

Abstract: The present invention is a MEMS-based two-phase LHP (loop heat pipe) and CPL (capillary pumped loop) using semiconductor grade silicon and microlithographic/anisotrophic etching techniques to achieve a planar configuration. The principal working material is silicon (and compatible borosilicate glass where necessary), particularly compatible with the cooling needs for electronic and computer chips and package cooling. The microloop heat pipes (?LHP™) utilize cutting edge microfabrication techniques. The device has no pump or moving parts, and is capable of moving heat at high power densities, using revolutionary coherent porous silicon (CPS) wicks. The CPS wicks minimize packaging thermal mismatch stress and improves strength-to-weight ratio. Also burst-through pressures can be controlled as the diameter of the coherent pores can be controlled on a sub-micron scale. The two phase planar operation provides extremely low specific thermal resistance (20-60 w/cm2).

Abstract: An air-conditioning system for a building includes a hot water distribution circuit, a cold water distribution circuit, and several terminal air conditioning units. Each of the terminal air conditioning units includes a fan blowing air in a space of the building, a heating coil connected to the hot water distribution circuit and/or a cooling coil connected to the cold water distribution circuit. At least one ambient temperature control system allows to control heating power of the heating coils and cooling power of the cooling coils. The system further includes a calorific energy management system with a heat pump for transferring calorific energy: a) from the cold water distribution system to the hot water distribution system; b) from the cold water distribution system to atmosphere; and c) from the atmosphere to the hot water distribution system. The calorific energy management system can manage the calorific energy transfers with a three level control system to optimize energy consumption.

Abstract: Data is transmitted to a main control device via sensing means such as temperature sensors, each having a memory means in which the ID code is stored, and via transmitting/receiving means such as switching elements. There is a stand-by period in the operation of the main control device after the main control device issues a command to start a sensing operation until the main control device issues a command to perform a read operation. The main control device receives power through a signal line the voltage of which is kept at a high level during the stand-by period. Thus, an equipment sensing system and an equipment control device which enable reliable and quick sensing, cost reduction, smooth control, and simplified wiring are provided.

Abstract: A personal dryer capable of expelling temperatured air uniformly throughout the dryer and/or different temperatured air at different regions of the dryer, so as to provide a user with the option of drying their entire body with a more desirable uniformly temperatured air and/or drying different bodily regions with different or varied, user-selectable temperatured air, and wherein such a personal dryer is capable of being pre-programmed to enable a user to dry his/her body in a user-specified regimen or manner.

Abstract: A dual evaporator air conditioning system and method for use therewith to cool air in front and rear portions of a cabin. The dual evaporator air conditioning system includes primary and auxiliary HVAC units to cool the air in the front and rear portions of the cabin, respectively. The dual evaporator air conditioning system also includes a control system having cooling and non-cooling modes for each of the HVAC units. The control system automatically diverts cooled air produced by the auxiliary HVAC unit into an air dumping chamber in response to the auxiliary HVAC unit being in the non-cooling mode while the primary HVAC unit is in the cooling mode. The air dumping chamber is partitioned from the cabin to prevent the cooled air generated by the auxiliary HVAC unit from entering the cabin. Maintaining airflow through an auxiliary evaporator prevents refrigerant and lubricant buildup in the auxiliary evaporator.

Abstract: A method of controlling a system with multiple air conditioner units having an outdoor machine and a plurality of indoor machines, which detects different driving modes input to each indoor machine, compares an outdoor temperature with first and second predetermined temperatures, and drives a corresponding indoor machine in accordance with the comparison results.

Abstract: In an air conditioner including an outdoor unit and plural indoor units, the outdoor unit is provided with an indoor unit operation setting mechanism for setting the driving operation of the indoor units, and the indoor unit operation setting mechanism is provided with operation control parameter changing means for changing the storage content of storage means of each indoor unit and/or master/slave setting means for automatically performing the master/slave setting operation of the indoor units.

Abstract: A multi-room air conditioning system includes an outdoor unit and a plurality of indoor units connected in parallel to the outdoor unit. A compressor frequency and combustion control calculator reads a load level for each indoor unit from a load coefficient table using a differential temperature calculated by a differential temperature calculator and a rated capacity stored in a rated capacity memory. The compressor frequency and combustion control calculator then multiplies a sum of the load levels by a predetermined constant and adds a compensation value thereto to obtain a frequency value. This value is used to control the compressor. The compressor frequency and combustion control calculator also sets a target combustion level using the frequency value for control of a refrigerant heater mounted in the outdoor unit.

Abstract: A control assembly for a HVAC system serving a plurality of zones within a structure, having ducting including a damper situated in an outlet of the ducting leading to each zone, a biasing element biasing the damper in a normally open position, and a motor coupled to each damper for closing each damper. A standard manual or automatic change-over thermostat is situated in each of the zones which includes at least a heating signal output and a cooling signal output.

Abstract: The temperatures of a plurality of rooms are controlled by a refrigerant cycle which enables a user to select desired room temperatures and one of the following operating modes: (i) supplying hot refrigerant to the indoor heat exchangers of all rooms, (ii) supplying cold refrigerant to the indoor heat exchangers of all rooms, and (iii) supplying hot refrigerant to an indoor heat exchanger of one room and cold refrigerant to an indoor heat exchanger of another room.

Abstract: A cogeneration system includes a gas engine generator acting as private power generating equipment for generating power to be supplied to private electricity consuming equipment, and a source-side heat exchanger connected to the gas engine generator through an exhaust heat recovery piping to act as a heat source. A heat medium is heated and evaporated through a heat exchange in the source-side heat exchanger. The resulting vapor is allowed to flow upward to be supplied to room heating heat exchangers. The vapor is liquefied through a heat exchange in the room heating heat exchangers. The resulting liquid is allowed to flow downward back to the source-side heat exchanger. This natural circulation of the heat medium is used for the heating purpose. Surplus exhaust heat is released through a generator to control the heat medium supplied to the room heating heat exchangers.