Abstract: The present disclosure allows for easy settling of control of capability of an refrigeration apparatus for performing a supercritical refrigeration cycle. An air conditioner (10) includes: a refrigerant circuit (20) sequentially connecting a compressor (21), an outdoor heat exchanger (23), an outdoor expansion valve (24), and an indoor heat exchanger (27), and performing a supercritical refrigeration cycle in which a high pressure is a supercritical pressure or higher; and a controller (40) for controlling a plurality of objects of control including at least the compressor (21) and the outdoor expansion valve (24). The controller (40) concurrently controls the plurality of objects of control, thereby concurrently controlling a predetermined physical value as an index of an ability of the refrigeration apparatus, and the high pressure of the refrigeration cycle.

Abstract: An air conditioner includes a heat-exchanger positioned in an outdoor unit and configured to conduct heat-exchange between air provided from outside of the outdoor unit and a refrigerant. The air conditioner also includes a fan configured to generate a flow of the air that is from the heat-exchanger to an outlet of the outdoor unit. The air conditioner further includes a driving unit configured to provide a driving force to the fan. In addition, the air conditioner includes a first member positioned in the flow of the air generated by the fan and a second member configured to guide a flow of the air to reduce collision between the air and the first member when the fan is operated.

Abstract: An indoor unit of an air conditioner is provided. The indoor unit has an improved airflow structure, for a rapid air conditioning of the room, a user's convenience, and an efficiency of the air conditioner.

Abstract: In a range of a wind velocity of 0.5 to 3.5 (m/s) in a refrigeration cycle, when combining absorbent having a small dependency on the wind velocity and the refrigeration cycle, it is not possible to vary dehumidification capability by changing the wind velocity and matching with an actual load is poor. In a refrigerating and air conditioning apparatus having a refrigerator 20 in which refrigerant is put, and having a compressor 20a for compressing the refrigerant, a condenser 20b, and a throttle device 20c, and an evaporator 20d, and a desiccant rotor 1, which is water adsorption means, an adsorbent is supported with the desiccant rotor 1, whose time constant at a water adsorption equilibrium becomes small as a wind velocity increases in the range of the wind velocity of 0.5 to 3.5 m/s, the condenser 20b is disposed upwind of the desiccant rotor 1, and the evaporator 20d is disposed downwind of the desiccant rotor 1.

Abstract: In order to provide a device, which with a low outlay enables a product to be cooled to be conveyed to a place of use and cooled reliably and energy-efficiently at the place of use, a cooling station for receiving a frame that has receivers for a product to be cooled is proposed, wherein the cooling station comprises at least one fan for generating a circulating air flow through the frame and at least one cooler for cooling the circulating air flow and wherein the cooling station comprises a housing that surrounds a receiving space for receiving the frame on at least three sides.

Abstract: An apparatus for reducing temperature of items includes an enclosure having an inlet and an outlet for the items within the enclosure; a conveyor for conveying the items within the enclosure from the inlet to the outlet; one or more delivery nozzles positioned to deliver gaseous cryogen and liquid or solid cryogen at supersonic velocity to the items on the conveyor. The apparatus delivers supersonic gaseous cryogen and fine liquid cryogen droplets onto the surface of food items to cool or freeze the food items.

Abstract: A refrigerator includes: a refrigerator body having a food storage space; a door opening/closing the storage space; a heat exchange chamber provided inside the refrigerator body and in which an evaporator is installed; an ultra-low-temperature storage separately provided in the storage space; and a supply unit directly supplying cooling air generated from the heat exchange chamber to the ultra-low-temperature storage.

Abstract: A refrigerant system has an electric motor positioned either inside or outside of a hermetically sealed shell containing a compressor pump unit and is mechanically coupled to drive this compressor pump unit. The electric motor has at least one thermoelectric cooler to cool, or assist in cooling, of at least one component of the electric motor.

Abstract: An outdoor refrigerator comprising a cabinet, a heat insulation board, a door panel and a condenser, wherein the heat insulation board is placed on the cabinet in order that a roasting stove is adapted to placing thereon without being damaged, a door panel is provided in front of the cabinet and is provided with a plurality of sealing strips, a condenser is provided in a receiving chamber on a rear side of the cabinet, and a fan is provided to increase effect of heat dissipation of the condenser. The present invention can overcome the problems of being subjected to damaging of the refrigerator used outdoors and the inferior heat dissipation of the refrigerator, and an object of convenient use can thus be attained.

Abstract: To obtain an air conditioner having a lower-noise centrifugal fan capable of improving product reliability during transportation and execution properties of installation, with reduced packaging materials in favor of environment. The shape of a blade is formed so that when a blade edge positioned on the downstream side of the blowing direction is designated as a blade rear-edge, the centrifugal fan has a relationship of the outer diameter of the side plate>the outer diameter of the blade rear-edge on the side of a side plate>the outer diameter of the blade rear-edge on the side of a main plate?the outer diameter of the main plate, and the blade rear-edge is located inside of a straight line connecting a connection point between the blade rear-edge and the main plate to a connection point between the blade rear-edge and the side plate relative to the rotation axis of the fan, and the distance between the blade rear edge and the rotation axis increases toward the side plate from the main plate.

Abstract: A portable cooling/heating unit for cooling/heating a product container. The unit includes a thermoelectric assembly, a housing, a front side fan, and a rear side fan. The thermoelectric assembly includes a thermoelectric device, a first heat sink, and a second heat sink. The housing maintains the first heat sink and front fan within a front side channel, and the second heat sink and rear fan within a rear side channel. The housing further forms a condensation passageway segment that facilitates fluid connection between the channels. During use, the unit is removably assembled to the container such that openings of the front side channel are fluidly within the container's interior region. Accumulated condensation is directed to the rear side channel and evaporated.

Abstract: The invention relates to an air conditioning device for switchgear cabinets, wherein the air conditioning device, which is located in a case, is arranged in constructional proximity to a switchgear cabinet and an air circulation between the switchgear cabinet and the air conditioning device is allowed by means of openings directed to the switchgear cabinet. According to the invention the air conditioning device can be operated in three different modes, which allow an active cooling, a passive cooling and a heating of the circulating air.

Abstract: A motor control device controls a fan motor, and controls a motor speed so as to maintain a predetermined airflow value. For this, the motor control device includes an input terminal for inputting a first operation parameter indicating the motor speed or a second operation parameter indicating a motor torque. Moreover, the motor control device includes a motor-speed target value arithmetically-operating unit that calculates, using a predetermined airflow value and the motor torque, a necessary modified value for the motor speed at the predetermined time intervals. Further, the motor control device includes an output terminal that outputs an instruction speed of the motor based on the necessary modified value.

Abstract: A method for operating a refrigeration system for a container for refrigerating frozen cargo, and a system employing the method. The method includes providing a compressor, a condenser, and an evaporator connected in series, and providing an evaporator fan. The method also includes alternating operation of the compressor and the evaporator fan, in combination, between an active mode where the compressor compresses a refrigerant and directs the refrigerant through the condenser and the evaporator, and where the evaporator fan rotates to supply refrigerated supply air from the evaporator to the cargo within the container, and a sleep mode in which the compressor and the evaporator fan are deactivated, and operating the compressor and the evaporator fan in the sleep mode for a duration that is based on a measured duration of a prior sleep mode.

Abstract: A heat exchanger includes fins arranged in parallel with each other with a predetermined spacing along the rotational axis direction of a blower. Heat exchanger tubes are inserted into the fins to form rows along a longitudinal direction of the fins connected to each other along the airflow direction, to form refrigerant channels. A branch portion is provided to connection portions of the heat exchanger tubes to increase or decrease the number of paths in the refrigerant channels. Refrigerant flows through each of the refrigerant channels passing through paths mutually different at least at one portion between the refrigerant inlet and the refrigerant outlets, flows along one direction from the windward-side row to the leeward-side row, or from the leeward-side row to the windward-side row in the airflow direction, in sequence between rows. One-path portion is provided in the most windward-side row heat exchanger tubes.

Abstract: An electrical energy use saving system for the sales of purchasable amounts of beer, soda, bottled water, meat, vegetables, fruit, dairy, eggs or seafood products kept in a walk-in cooler, reach-in cooler or display case whose temperature is to be maintained includes a compressor, a thermostat, a suction fan and a thermometer in a network by which the cooler or case is cooled by outdoors ambient air when outside temperatures are cold and where the cooler or case is cooled by the compressor when outside temperatures are warm.

Abstract: A refrigerator and a control method for the same are disclosed. Precise temperature control for plural cooling compartments can be achieved so that the cooling compartments can be respectively cooled down in various temperature zones, the temperature in the cooling compartments can be efficiently controlled, and a refrigerant does not remain in the system. Accordingly, the overall performance of the system is enhanced.

Abstract: A centrifugal fan, which equally maintains air-blowing capacities of both inlets regardless of different suction resistances of both inlets due to a driving device, and an air conditioner having the centrifugal fan. The centrifugal fan includes a rotary plate; first blades disposed at the edge of one surface of the rotary plate; and second blades disposed at the edge of the other surface of the rotary plate, and having a larger outer diameter than the outer diameter of the first blades. Thus, although a large flow resistance is generated at one inlet of the centrifugal fan due to the driving device, air-blowing capacities of both inlets are maintained equally.

Abstract: A shielding member includes a shielding plate for covering a part of a heat exchanger, heat transfer tube engagement sections for engaging with heat transfer tubes of the heat exchanger, fin engagement portions for engaging with fins of the heat exchanger, a bypass preventing rib for preventing air from being directed to the part of the heat exchanger, and a mismounting preventing portion for preventing the shielding member from being mounted on a heat exchanger that does not require blocking of air flow. The heat exchanger in which the part covered with the shielding member has no heat exchanging function is manufactured with the same components as those of a heat exchanger on which the shielding member is not mounted and the whole of which has a heat exchanging function.

Abstract: Embodiments of the invention provide an air conditioning (AC) unit including a pre-filter and a water-repellent filter. The water-repellent filter prevents moisture and dirt in the outdoor air from entering the AC unit through depth filtration. The AC unit also includes a vertical partition separating an outside section from an inside section, with a vent allowing air flow between the outside section and the inside section, and an economizer assembly including a damper.

Abstract: A refrigerator includes an enclosure that is adapted to store and cool down food, a refrigeration circuit that cools down the inside of the enclosure and a condensate evaporation device. The refrigeration circuit includes an evaporator that evaporates coolant to cool down the inside of the enclosure and a condenser that condenses coolant. The condensate evaporation device includes a drain case into which condensate generated is collected, and a heating device that provides heat to the drain case to evaporate the condensate. The heating device includes a hot air guide device that guides air heated with heat generated by the condenser into the drain case. The hot air guide device includes an air duct that is provided between the drain case and the condenser.

Abstract: An exemplary refrigeration system for cooling food or beverages may use a liquid cooling system of a vehicle. The refrigeration system may include a compartment in which the food or beverages may be placed and removed, a chilled liquid coolant system having a connection through which liquid coolant is received from the liquid cooling system of the vehicle, and a heat exchanger operationally coupled with the chilled liquid coolant system and the compartment to transfer heat from the compartment into the liquid coolant. The refrigeration system may also include a second chilled coolant system through which a second coolant flows and a second heat exchanger operationally coupled with the second chilled coolant system and the compartment to transfer heat from the compartment. The chilled liquid coolant system and the second chilled coolant system may operate together as a cascade cooling system.

Abstract: A life support system includes a refuge housing and a cooling system. The cooling system, which has a supply of liquefied gas and a cooling circuit, is operatively associated with the refuge housing. The supply of liquefied gas is operatively associated with the cooling circuit that contains a heat exchanger, a fan motor and a fan operatively associated with the fan motor. A conduit connects the heat exchanger to the fan motor that is driven by waste gas generated through a phase change of the liquefied gas in the heat exchanger.

Abstract: A refrigerant cooling system for an electronic apparatus and the method thereof are provided. An enclosure is set with a fan on one side thereof; the enclosure is set with an opening on one side thereof. The enclosure is set with an electronic substrate inside with other electronic devices. The electronic substrate is set with a middle-temperature evaporator with an input end and an output end, in which the refrigerant is filled into the input end. The input end is set with a throttling device. The output end is set with a throttling device connecting to a low-temperature evaporator. The low-temperature evaporator is set with a condensed water drain-pan at a bottom side thereof and the condensation water drain-pan is connected to a drain pipe. The pipe of the output end of low-temperature evaporator is connected to a receiver or a compressor of a refrigerating system for a compression cycle.

Abstract: In an indoor equipment of an air conditioner in which a heat exchanger, a blower, and a drain pan receiving a drain water having been condensed at mentioned heat exchanger below the heat exchanger are contained in an internal part of the indoor equipment housing including an air inlet and an air outlet; and a back portion of the drain pan is faced to an air flow path communicating with mentioned air outlet, and a stabilizer is disposed at an end portion on the upstream side of the air flow path of this drain pan, the drain pan 4 is integrally formed of a drain pan body 41 and a stabilizer portion 42 by injection molding; and a concave portion 40 is formed on the air flow path side in the vicinity of the boundary between the drain pan body and the stabilizer portion.

Abstract: A climatic chamber for rapidly reaching and maintaining a predetermined air humidity and/or a predetermined temperature. The air in a sample space is conveyable by at least one fan from an outlet of sample space at least partially via a bypass branch and/or at least partially via a drying branch back to an inlet of sample space. The air is circulated continuously by the fans in a substantially self-contained circuit. The air is guided by guide elements through the bypass branch and/or drying branch.

Abstract: Thermal storage air conditioner including an outdoor unit having an outdoor heat exchanger for making heat exchange, and at least one compressor for compressing refrigerant, an indoor unit having at least one indoor heat exchanger for making heat exchange, a thermal storage unit having a thermal storage tank for holding thermal storage substance therein, a thermal storage heat exchanger for receiving refrigerant from an outside of the thermal storage unit to heat exchange with the thermal storage substance in the thermal storage tank, and a securing member for securing the thermal storage heat exchanger so as to maintain the thermal storage heat exchanger submerged under the thermal storage substance in the thermal storage tank, and a functional unit for selective control of refrigerant flows among the outdoor unit, the indoor unit and the thermal storage unit according to an operation condition, thereby maintaining the thermal storage heat exchanger in the thermal storage tank securely, to prevent drop of he

Abstract: An appliance with a separately chilled storage area is disclosed. The appliance comprises a refrigerated compartment; a refrigeration system for cooling air; an air circulation system for circulating the cooled air about the refrigerated compartment; and a secondary air circulation system for circulating a portion of the cooled air in the storage assembly.

Abstract: A dual evaporator refrigerator includes a freezer compartment and a refrigeration compartment with an enclosed pan. A freezer evaporator with a freezer fan is in the freezer compartment for cooling the freezer compartment and a refrigeration evaporator with a first refrigeration fan is in the refrigeration compartment for cooling the refrigeration compartment. A compressor provides refrigerant flow to the freezer and the refrigeration evaporators. A second refrigeration fan moves air from the refrigeration evaporator to the enclosed pan.

Abstract: A thin air outlet structure to a vehicle compartment exhibiting excellent directivity while ensuring sufficient volume and velocity of air conditioning air stream. In the air outlet structure 10, delivery direction of the air stream can be altered by altering the posture of a pair of fins 16 provided at a middle portion 13 in the flow direction in a case 12. Since the air outlet 20 does not require a plurality of fins for altering the delivery direction, the air outlet 20 can be made thin. Since the delivery direction of the air stream can be altered by means of the pair of fins 16 and the number of the fins 16 is small, flow of air is not impeded in the flow path within the case 12 and effective cross-sectional area of the flow path within the case 12 can be ensured. Consequently, sufficient volume and velocity of air stream can be secured. Furthermore, the size for each blade of the fins 16 can be increased by the decrease made in the number of fins 16.

Abstract: An air conditioning control device includes an operating-unit specifying unit, an adjacent-unit specifying unit and an adjacent-unit control unit, and collectively controls the operation of an indoor unit group. The operating-unit specifying unit specifies an operating unit to perform an air conditioning operation from the indoor units included in the indoor unit group. The adjacent-unit specifying unit specifies an adjacent unit adjacent to the operating unit from the indoor units included in the indoor unit group. The adjacent-unit control unit causes the adjacent unit to perform an air flow generating operation. This air flow inhibits air conditioned by the air conditioning operation of the operating unit from diffusing from an air conditioning target space.

Abstract: The present invention relates to air conditioning equipment capable of controlling the level of relative air humidity through a closed-loop system, enabling a stable relative air humidity level to be obtained for a pre-adjusted value. Thus, the present application describes air conditioning equipment comprising at least one cooling system and a humidification module associated to each other, said humidification module characterized by being removably built-in to the air conditioning equipment and by being controllable independently from the cooling system through at least one electronic sub-module.

Abstract: An air conditioner having an enhanced user perception and a controlling method thereof are provided. A predetermined character and/or its applied character image are/is displayed on a display window of the air conditioner. The character and/or the character image are/is changed depending on the operational states of the air conditioner, so that the user perceives the operational state of the air conditioner more conveniently. The air conditioner has advantages in that the user can perceive the operational state of the air conditioner more conveniently, the user can be stimulated to purchase the product, and a use term of the air conditioner can be extended.

Abstract: An indoor unit for a multi-directional air supply air conditioner capable of performing at least a heating operation includes: an indoor fan (39) for sucking air in an axial direction thereof and radially blowing out the air; and a heat exchange part (38), connected in a refrigerant circuit (80) and disposed to surround the indoor fan (39), for exchanging heat between the air blown out of the indoor fan (39) and refrigerant in the refrigerant circuit (80). The heat exchange part (38) includes a plurality of heat exchangers (48) separated from each other along the direction of the perimeter thereof and connected in parallel with each other in the refrigerant circuit (80).

Abstract: An air conditioning unit is for cooling and dehumidifying outside air for flowing into an enclosed space from outside. The unit is interposable between a first evaporator coil and a first condenser coil and comprises a second evaporator coil that is positioned to receive outside air for channeling therethrough from an outer to an inner side and thence to the enclosed space. A second condenser coil is positioned to receive outside air for channeling therethrough from an inner to an outer side and thence to the outside. A compressor is in fluid communication with and upstream of the second condenser coil and downstream of the second evaporator coil. Another embodiment is intended as a unitary system and includes a unitary compressor and condenser coil, with one evaporator coil for processing inside air and another for channeling outside air into the enclosed space.

Abstract: A cooling system for a refrigerator having a fresh food compartment and a freezer compartment separated by a partition, includes a compressor for compressing a refrigerant; a condenser for condensing the compressed refrigerant; an evaporator having a freezer compartment portion and a fresh food compartment portion; wherein the freezer compartment portion of the evaporator cools a freezer compartment, and the fresh food compartment portion of the evaporator cools a fresh food compartment. The fresh food compartment portion of the evaporator projects into a passage formed in the partition which passage extends between the fresh food compartment portion of the evaporator and the fresh food compartment.

Abstract: A multi-stage operation type air conditioner which can be operated in various cooling or heating capacities. The multi-stage operation type air conditioner includes a first discharge port, a first opening/closing device for opening or closing the first discharge port, a second discharge port having a size different from that of the first discharge port, a second opening/closing device for opening or closing the second discharge port, and a controller for controlling the air conditioner such that the air conditioner may be operated with one of the first and second discharge ports opened, in an operation with a lower cooling or heating load, and the air conditioner may be operated with both the first and second discharge ports opened, in an operation with a higher cooling or heating load.

Abstract: A discharge device in a substance modifying device is provided with a positive electrode in linear or needle form and a negative electrode in plane form. Thus, substances having a nanostructure are made to contact an active species generated through streamer discharge, which is discharge between the positive and negative electrodes, where discharge between certain points of the positive electrode and a number of points on the negative electrode occurs stably and approximately simultaneously, and is diffused from between the positive and negative electrodes, so that the nanostructure is eliminated. The nanostructure is eliminated in this manner, and thus, the bioinvasive response due to the nanostructure of substances is reduced.

Abstract: An outdoor unit is provided that is capable of reducing pressure loss due to the presence of a fan guard and improving the performance of an air conditioner. The outdoor unit includes an outdoor fan, an air discharge port, and a fan guard. The fan guard covers the air discharge port, and has a spaced away portion that is at least 100 mm away from the outdoor fan. In addition, the spaced away portion has a first opening whose minimum width is at least 15 mm.

Abstract: The present invention obtains a desired cooling effect in a fan motor as well as suppresses any increase in the noise level in a centrifugal fan that sucks in air from the rotary shaft direction and blows out air in a direction that intersects the rotary shaft, and in an air conditioner provided therewith. The centrifugal fan of the air conditioner comprises a fan motor, a hub, a plurality of blades, and an air guide. The hub has cooling air holes, and is coupled to and rotationally driven by a shaft of the fan motor. The air guide guides a portion of the blown out air to the vicinity of the fan motor, cools the fan motor, and then guides the air flow so that the revolving direction velocity decreases when that air is blown out from the cooling air holes to the side of the hub opposite the fan motor.

Abstract: A subcooler (15) for a vapor compression cycle having a refrigerant. The subcooler (15) including a conduit (45) and one or more thermoelectric modules (17). The conduit (45) being in fluid communication with the vapor compression cycle for flow of the refrigerant therethrough. Each of the one or more thermoelectric modules (17) has a cold side in thermal communication with an inner volume of the conduit (45) for subcooling the refrigerant.

Abstract: A refrigerated preservation unit, particularly for domestic use, includes an internal compartment provided with an access door and with a refrigeration means. The unit includes an atmosphere control device constituted by a nitrogen generator, a control PLC, an oxygen analyzer, an overpressure/negative pressure valve, and a flexible plenum chamber. These components are all installed in a lower region of the unit, in the compartment normally used to accommodate the compressor and the condenser in traditional domestic refrigerators. The present invention allows to considerably improve the preservation times of food products stored inside home refrigerators when they are preserved loose and/or when the packages that contain them are not hermetically closed. The present invention allows in some cases to even treble the preservation time of the preserved products with a minimal additional energy expenditure of the electrical appliance.

Abstract: An enbloc air conditioner has a condenser unit and an evaporator unit aligned one behind the other on opposite sides of a plane transverse to the air flow path.

Abstract: An indoor unit of an air conditioner is provided. The indoor unit has an improved airflow structure, for a rapid air conditioning of the room, a user's convenience, and an efficiency of the air conditioner.

Abstract: A fan wheel of a blower fan includes a first base portion including a first flange, a second base portion including a second flange and a plurality of blades extending between the first base portion and the second base portion. The fan wheel is rotatable about an axis of rotation. A first end ring is attached to an inner perimeter of the first base portion, the first end ring including a third flange that extends outwardly relative to the axis of rotation. A second end ring is attached to an inner perimeter of the second base portion, the second end ring including a fourth flange that extends outwardly relative to the axis of rotation.

Abstract: The position of a damper is changed over to switch over the cooling mode between an inside air intake mode and an A/C intake mode. In the inside air intake mode, the air inside a passenger compartment of a motor vehicle is taken in and directly blown to a battery by the operation of a battery blower fan. In the A/C intake mode, the air cooled down by an air conditioner (evaporator) is taken in and blown to the battery by the operation of the battery blower fan. When the detected vehicle speed V is not lower than a preset reference speed Vref, the position of the damper is immediately changed over (steps S240 to S260). When the vehicle speed V is lower than the preset reference speed Vref, on the other hand, the operation amount of the battery blower fan is restricted to a preset limit level Qlim, prior to the changeover of the position of the damper (steps S220 to S260).

Abstract: A blower fan of a fan coil unit includes a fan wheel including a first end ring, a second end ring, and a plurality of blades that extend between the first end ring and the second end ring. The plurality of blades define a wheel inner diameter, and each of the first end ring and the second end ring define an end ring inner diameter. The blower fan also includes a housing including an inlet orifice having an orifice diameter. The fan wheel is located within the housing. The orifice diameter is substantially equal to the end ring inner diameter and greater than the wheel inner diameter.

Abstract: An atmospheric water harvester includes a cooling member over which humid air flows to condense moisture from the atmosphere. The cooling member may be the evaporator of a conventional, gas vapor-based refrigeration circuit. If a gas vapor-based refrigeration circuit is used, the compressor of the circuit may be variable speed. A fan or impeller used to move air through the system may also be variable speed. A preferred embodiment includes a variable flow geometry thermal economizer section configured such that, to varying degrees, the incoming air may be pre-cooled, before it passes over the cooling member, by heat exchange with colder air that has already flowed over the cooling member.

Abstract: Subassemblies are arranged in the interior of a closed housing. The housing has an air inlet via which air-conditioning air is guided into the interior of the housing. The housing contains a fan via which the air used for the air conditioning of the subassemblies is guided to the outside from the interior of the housing. In addition to a fan input opening, the fan has at least two fan output openings wherein a rotatably mounted screen is arranged in the interior of the fan. By variably adjusting the position of the screen, the air sucked in via the fan input openings is optically guided via at least one of the fan output openings.

Abstract: A air-conditioner and the refrigerant charging method of the air-conditioner are disclosed. When a refrigerant amount determining mode is requested to be performed, whether or not the refrigerant amount in the air-conditioner is proper is automatically determined and a shortage amount of refrigerant can be charged. Thus, a user can easily check whether or not the refrigerant charged in the air-conditioner is sufficient or insufficient, and if the refrigerant is not sufficient, the user can automatically charge the refrigerant without having to entirely remove the refrigerant from the air-conditioner, thus increasing the user convenience and reducing time and costs.