Abstract: An air conditioning system to improve indoor air quality (“IAQ”) comprises an air conditioner to receive indoor air from an indoor space and to heat or cool the air, the air conditioner to then return conditioned air to the indoor space. An IAQ option board (“IOB”), electrically coupled to the air conditioner control board, is configured to accept electrical inputs from at least one IAQ sensor. A fresh air damper is electrically connected to the IOB, the IOB controlling the position of the fresh air damper valve. An air purifier is situated such that air from the indoor space passes through the purifier. The operation of state of operation of the purifier is based at least in part on the input from at least one IAQ sensor to improve the IAQ of the indoor space.

Abstract: To prevent incorrect operation of an operating member provided in an electric component box without giving complicated processing on a front panel. An opening formed in the front portion of a housing (11) to correspond to a machine room (14) is closed with a front panel (20). A suction louver (25) and a delivery louver (26) are formed in the front panel (20). An inserting/withdrawing opening (28) used for inserting/withdrawing a filter (34) is opened above the position for forming the suction louver (25) in the front panel (20). A base portion (38) being fitted in the inserting/withdrawing opening (28) to close the opening (28) is formed above the filter (34). A power switch (43) and a service switch (44) are provided on the front of the electric component box (42) arranged in the machine room (14). The portion for arranging the power switch (43) and the service switch (44) in the electric component box (42) opposes the rear of the inserting/withdrawing opening (28).

Abstract: A transport refrigeration unit has a front cover that includes a grille supported by and attached to a surround assembly by means of latch members.

Abstract: The invention relates to a cooling surface arrangement, which provides cooling in places where food should be cooled and kept cold by means of cooling pipes (5) connected to the cooling surface in which cooling liquid passes where there is at least one bottom glass (3) connected to the cooling pipes (5), at least one upper glass (1) to be used as a service surface and glue (2) to fix these upper and bottom glasses under high pressure.

Abstract: A dehumidifier is provided. The dehumidifier includes a cabinet defining an outer appearance of the dehumidifier, a barrier installed in the cabinet to collect condensed water, and a bucket assembly received in the barrier to store the condensed water, the bucket assembly being capable of pivoting frontward.

Abstract: In a cooling system, a compressor (1), a heat source (2), a heat exchanger (3), and a buffer tank (4) are connected in that order by piping (5) to constitute a closed circuit. In the closed circuit, nitrogen serving as a refrigerant is circulated without contacting open air. Any gas except for the air may be used as the refrigerant as long as the gas absorbs heat from the heat source (2) and dissipates the heat to the outside in the heat exchanger (3) when the gas is circulated in the closed circuit without being liquefied.

Abstract: Provided is an air conditioner. According to the air conditioner, an installation structure of an indoor heat exchanger installed inside the air conditioner is improved, so that the air conditioner become slim and an installation space for additional devices such as a filter can be secured. According to the air conditioner, the indoor heat exchanger divides a passage of air introduced into a main unit into an upper passage and a lower passage, so that interference between the upper and lower passages can be minimized, and thus operation efficiency of the air conditioner can improve. Also, a space of a predetermined size is formed between the indoor heat exchanger and air intake holes to receive a predetermined device such as a filter and a negative ion generator that can give a separate function to the air conditioner.

Abstract: Methods and apparatus are provided for enhancing the performance of rooftop air conditioning systems by operating such systems with an economizer cycle and utilizing a blend incorporating R32 and R125 refrigerants as a working medium, wherein such benefits are related to at least the performance (e.g. capacity and/or the energy efficiency ratio) of the rooftop air conditioning system operating at various environments (e.g. temperatures at and above 95° F.).

Abstract: Provided is an air conditioner. The air conditioner includes an outdoor unit and an indoor unit, a plurality of refrigerant tubes guiding refrigerant to flow into the outdoor unit and the indoor unit, and a refrigerant tube support inside the outdoor unit, the refrigerant tube supporting the plurality of refrigerant tubes, wherein the refrigerant tube support has a height difference such that the plurality of refrigerant tubes are separately supported at different positions.

Abstract: An air conditioner includes a case provided with openings, a heat exchanger disposed in the case, one or more fans disposed in the case, and a variation unit that is movably disposed around the fans to vary air inlet and outlet directions.

Abstract: A control device repeats first air volume control and second air volume control for a predetermined number of times irrespective of a control state at that time while forcedly driving an ion generator, when a bacteria elimination shower switch is turned on. In the first air volume control, a sirocco fan generates an air flow having a predetermined air volume. In the second air volume control, the sirocco fan generates an air flow having an air volume smaller than the predetermined air volume. Therefore, a bacteria elimination effect is enhanced in an air conditioning apparatus.

Abstract: An air-conditioning system operable at different states employs a control unit including a receiver and a transmitter. The receiver is connected electrically to a switching device for a compressor of the air-conditioning system. The compressor is installed at a remote location exterior to a building. The receiver is responsive to an encoded radio signal to provide an electronic control signal for actuating the switching device. The transmitter is installed within the building and is electrically connected to a thermostat within the building that responds to temperature changes to provide a temperature control signal. The transmitter upon receipt of the temperature control signal transmits to the remote location the encoded radio signal for operating the air-conditioning system at one of the different states.

Abstract: According to the present invention there is provided a compact heat pump using water as refrigerant, comprising an evaporator (20) located at a first end section of the heat pump casing (12), adapted to allow evaporation of water therefrom, One or more compressors (40) located at a second end section of the heat pump casing adapted to induce said evaporation by maintaining vacuum, provided with an intake conduit (32) extending from the evaporator (20) to the compressor (40) leading vapor thereto. A condenser (30) is located in the intermediate section of the casing (12) wherein the intake conduit (32) passes therethrough, adapted for condensing the vapor. The heat pump also comprises vacuum means (39) allowing creating and maintaining vacuum in the casing. There is also provided a snow dome allowing skiing and snow related activities in above zero conditions using the heat pump for creation of snow or ice slurry.

Abstract: An indoor unit of a ceiling-embedded type or ceiling-suspended type air conditioner with an improved flexibility of the design of a bottom panel is provided. An indoor unit includes a bottom panel, an inlet disposed to the bottom panel, a movable panel that closes the inlet during non-operation, and a driving unit. The driving unit moves or rotates the movable panel. During operation, the movable panel moves or rotates and recedes above a bottom surface of the bottom panel.

Abstract: An air conditioning apparatus includes a casing and a dividing cosmetic panel. The casing has a suction port and a discharge port. The dividing cosmetic panel has a plurality of dividing panels and an opening/closing moveable mechanism for varying the positions of the dividing panels relative to the suction port. The opening/closing moveable mechanism switches between a state in which the dividing panels are disposed in proximity to each other, thereby blocking air flow through the suction port, and a state in which the dividing panels are separated from each other to allow ventilation through the suction port.

Abstract: An air conditioning unit has improved visual appeal in a non-operational state, and can reduce smudging of a ceiling in an air conditioned space by discharged air. The air conditioning unit is configured to be disposed above a space to be air-conditioned. The air conditioning unit includes a case, a first moveable panel, and a moveable panel actuating mechanism. The case has at least one discharge duct on a bottom face. The first moveable panel is configured to open and close the discharge duct. The moveable panel actuating mechanism moves the first moveable panels between a first position at which at least the outside section of the discharge duct is closed off, and a second position at which the outside section of the discharge duct is opened.

Abstract: A walk-in cooler arranged in accordance with the invention includes a one or more refrigeration sections and a freezing compartment within the refrigeration section. The wall panels defining the freezing compartment are substantially thicker than the wall panels defining the refrigeration section. To accommodate the substantial change in panel thickness, panel conversion members are provided that couple panels having a substantial different in panel thickness, yet maintain a uniform exterior wall appearance. Ceiling conversion panels are also provided to enable a ceiling transition between the refrigeration section and the freezer compartment.

Abstract: A hybrid air conditioning system (45) having both a conventional air conditioning system (46) and thermoelectric modules (80, 85, 90, 95) to provide heating and cooling, the thermoelectric modules (80, 85, 90, 95) providing waste heat or waste cooling to offset the demand on the conventional air conditioning system (46) and thereby reducing energy consumption and enhancing efficiency of the overall system (45).

Abstract: The indoor unit comprises a body and a cover member. The body has a rear ledge. The rear ledge can be embedded in a wall. The cover member has a plurality of cover elements. The plurality of cover elements is aligned along the direction in which the rear ledge is embedded in a wall. The plurality of cover elements can be partitioned. The cover member covers at least part of the rear ledge.

Abstract: Apparatus for detecting the escape of a fluid from a cooling system having a passage (1, 2, 3), comprises: a housing (4, 5) defining a volume abutting one or more portions of said passage; and sensor means (6, 7) adapted to detect the presence of said fluid within said volume; and wherein the housing is adapted to collect the escaped fluid such that the sensor can detect the escaped fluid before the operation of the cooling system is compromised. The passage of the cooling system may be a pipe of a heat exchange circuit, and the fluid may be a heat transfer fluid such as carbon dioxide. The apparatus may be adapted to signal to alarm means or other monitoring systems on detection of escaped fluid.

Abstract: Disclosed is a built-in refrigerator comprising: a furniture body having a receiving space therein; a furniture door installed at a front side of the furniture body to be opened and closed, and having a through hole at a front surface thereof; a refrigerator body installed in the receiving space of the furniture body; a refrigerator door installed at a front side of the refrigerator body to be opened and closed, and having a display portion for informing an operation state of the refrigerator at a front surface thereof; a bracket installed between the furniture door and the refrigerator door so that the refrigerator door can be opened and closed together with the furniture door at the time of opening and closing the furniture door; and a cover member installed at the through hole of the furniture door.

Abstract: A self-contained cooling unit for drinking water fountains, wherein the cooling unit includes an outer casing (2) forming a fluidtight chamber. A thermal exchange fluid is held within the chamber. Also a source of cold energy is transferable to the thermal exchange fluid. Additionally at least one drinking water conduit is arranged within the chamber, having a drinking water inlet and a drinking water outlet outside of said chamber.

Abstract: To improve operation efficiency and safety at the time of trial run after installation and inspection, an outdoor unit includes a casing, a box provided within the casing, a main control board which is disposed along a perpendicular direction within the casing and at least on a forward side and a deep side such that they overlap each other, a fan motor driving board and a noise filter board, wherein the main control board is provided to be rotatable to the forward side with its bottom side as a fulcrum point.

Abstract: An air conditioning system including a first communication line, a second communication line, and at least one common power supply line coupling an indoor unit and an outdoor unit. The indoor unit including at least one of a first communication circuit and a second communication circuit, the first communication circuit configured to communicate through the first and second communication lines independent of the at least one power supply line, and the second communication circuit configured to communicate through the at least one power supply line and one of the first and the second communication lines.

Abstract: An air conditioning system comprising an outdoor and an indoor unit connected through common power supply lines. The outdoor unit including a first communication circuit using one of the plurality of common power supply lines and one signal line independent of the power supply lines. The indoor unit comprising terminals connected to the first communication circuit; a switch configured to set the first and second communication circuits to a connection state or a disconnection state; a detection circuit configured to detect a voltage between the terminals; and a controller configured to control the switch. The switch sets the first and second communication circuits to the disconnection state when the voltage detected by the detection circuit equals or exceeds a predetermined threshold value; otherwise the switch sets the first and second communication circuits to the connection state.

Abstract: An air conditioning system comprising: an indoor and an outdoor unit connected through common power supply lines The indoor unit comprising a first communications circuit in communication with the outdoor unit through first and second communication lines independent of the supply lines; and a second communication circuit that communicates through one of the supply lines and a third communication line. The outdoor unit comprising a third communication circuit in communication with one of the first and second communication circuits; a switch that connects or disconnects a communication terminal with one of the common power supply lines based on a connection status between the third communication circuit and the first and second communication circuits; and a judging circuit that controls the connection and disconnection, and judges, based on the presence of an acknowledge signal, whether the first and the second communication circuit is connected to the outdoor unit.

Abstract: In an air conditioner of a ceiling-installed type provided with a casing (10), a ceiling panel (20) installed at a lower end part of a casing (10), and a suction grill (22) attached to the ceiling panel (20), the ceiling panel (20) having a removable type or an opening-closing type suction grill (22) and the ceiling panel (20) having an elevating-lowering type suction grill (22) are configured to be shared to curtail a waste in cost. To this end, the ceiling panel (20) is configured to have a ceiling panel body (26), a frame (27) arranged on an inner periphery side of this ceiling panel body (26) and to which the suction grill (22) is attached, and an attachment mechanism for attaching the frame (27) to the ceiling panel body (26).

Abstract: An air conditioner with a service valve assembly is disclosed wherein service valves are used for easy infusion and collection of refrigerant at the time of installation or detachment of separation-type multi-air conditioner mounted with a plurality of indoor units reducing the manufacturing costs and unit size. The air conditioner comprises: an outdoor unit including a compressor and heat exchanger; a plurality of indoor units including an expander and an indoor heat exchanger; a plurality of refrigerant input pipes; a first convergence piping for converging the refrigerant flowing in the plurality of refrigerant input pipes into the compressor; a second convergence piping for converging and introducing the refrigerant having passed the outdoor heat exchanger via the compressor into the plurality of indoor units; a plurality of refrigerant supply pipes; and first and second service valves for controlling fluid flow.

Abstract: A multi air conditioner system in one example performs a cooling and heating changeover by selectively granting priority to one or more indoor units, determining whether there is one or more operating indoor units with priorities, and granting a control right for auto changeover to at least one indoor unit with priority.

Abstract: An arrangement of functional units for one of the following household appliances: refrigerator or freezer, electric cooker, dishwasher, and washing machine. Said household appliance comprises a device body and the arrangement comprises at least three of the following functional units: at least one ventilator, at least one condenser, at least one electronic system, at least one valve, at least one transformer, and an evaporator. The at least three functional units are arranged together on a support and can be functionally, in particular, electrically and/or fludically connected to the device body as a module. The invention also relates to a household appliance comprising the inventive modular arrangement, whereby the arrangement and the device body are functionally, in particular, electrically and/or fluidically connected together. The invention is characterised in that mounting, maintenance and/or repairs of the household appliances are significantly simplified.

Abstract: An air conditioner is provided with a plurality of outdoor units, an indoor unit, a liquid refrigerant communication pipe and gas refrigerant communication pipe, and a controller. The outdoor unit has a compressor, an outdoor heat exchanger, and an accumulator. The indoor unit has an indoor expansion valve and an indoor heat exchanger. The controller starts another of the heat source units in a stopped state when it is determined that the amount of refrigerant is excessive in a heat source unit in an operating state, or performs refrigerant accumulation control for accumulating refrigerant in an accumulator in a heat source unit other than a first heat source unit in an operating state.

Abstract: A branching unit has a refrigerant pipe that is branched into a plurality of branching refrigerant pipes, and includes an insulation material resin casing and an expanded insulation material casing. The insulation material resin casing encloses branching portion while assuring an insulation space between the insulation material resin casing and the branching portion. The expanded insulation material casing is disposed on the external periphery of the insulation material resin casing.

Abstract: In a plate shaped shut-off valve support member configured to support a shut-off valve to which a refrigerant pipe on an indoor unit side is connected, and configured to be extended across a first fixing portion and a second fixing portion of an outdoor unit, the operability of a service port of the shut-off valve is ensured and the strength of the shut-off valve support member is improved. A shut-off valve support member (30) comprises an attachment portion (35), an interference prevention portion (36), and a stepped portion (37). A shut-off valve (61, 62) is attached to the attachment portion (35) with a service port (61a, 62a) of the shut-off valve (61, 62) protruding in a direction perpendicular to a longitudinal direction of the shut-off valve support member.

Abstract: An outdoor unit includes an outdoor unit control circuit, an inverter substrate and a compressor. Periodic communication showing the operating condition of the inverter substrate is set from the inverter substrate to the outdoor unit control circuit. Thus, when the communication is performed-normally, the drive of the compressor is changed to a power saving process according to the necessity of the power consumption and the operating condition of the inverter substrate. When the communication is defective, the power-on reset is done to the inverter substrate.

Abstract: In an air conditioner having an electrical equipment box mounted on the outer surface of a unit body in which an air blowing fan and an indoor heat exchanger are mounted, the electrical equipment box has an accommodating portion in which a control board is mounted, and a projecting portion that is connected to the accommodating portion so that the inside of the projecting portion intercommunicates with the inside of the accommodating portion and has an air inlet port and an air discharge port, and the unit body has an opening formed in the outer surface thereof through which the projecting portion of the electrical equipment box is inserted, the projecting portion being secured to the outer side surface of the unit body under the state that the projecting portion projects through the opening into an air flowing passage of the air blowing fan.

Abstract: An air conditioner for communication equipment according to the present invention comprises an indoor module located inside a base station, and having a storage tank in which cooling water is stored, a pair of circulation pumps which are installed in parallel on a cooling water pipe extending from an outlet of the storage tank, an indoor heat exchanger which is installed on the cooling water pipe extending from outlets of the circulation pumps, and an indoor blower which is positioned adjacent to the indoor heat exchanger; and an outdoor module located outside the base station, and having an outdoor heat exchanger which is installed on the cooling water pipe extending from an outlet of the indoor heat exchanger, an outdoor blower which is positioned adjacent to the outdoor heat exchanger, and a pair of cooling units which are installed in series on the cooling water pipe extending from an outlet of the outdoor heat exchanger.

Abstract: An outdoor unit of an air conditioner includes a plurality of constant capacity compressors, a variable capacity compressor and a controller. The plurality of constant capacity compressors compress refrigerant in a predetermined capacity. The variable capacity compressor is capable of having its capacity changed and compressing varying amounts of refrigerant. The controller sequentially causes the plurality of constant capacity compressors to start up and regulates the operating frequency of the variable capacity compressor after start up of the plurality of constant capacity compressors.

Abstract: An air conditioning apparatus includes a refrigerant circuit and an operation control section. The operation control section is capable of performing a refrigeration cycle for causing an outdoor heat exchanger to function as a refrigerant condenser and an indoor heat exchanger to function as a refrigerant evaporator, while performing superheat degree control for controlling the aperture of an indoor expansion valve so that the degree of superheat of the refrigerant at the outlet from the indoor heat exchanger is constant. The operation control section sets a lower aperture limit for the indoor expansion valve to perform the superheat degree control, and reduces the lower aperture limit when the refrigerant at the outlet from the indoor heat exchanger is detected to be wet.

Abstract: A mounting bracket (30) for mounting a drain pump (40) to a heat insulator (25) is integrated with a lid element (32) for blocking an opening of a wire receiving groove (26). When the mounting bracket (30) is mounted to the heat insulator (25), a wire (41) extending from the drain pump (40) is held between the wire receiving groove (26) and the lid element (32).

Abstract: Fixed part 21 of a shield panel 20 is fixed to a casing 1 in vicinity of a lower edge of an opening 15. In the shield panel 20, a portion of step part 22 adjoining the fixed part 21, flat part 23 and bent part 24 are placed inside the casing 1. Extremity of the bent part 24 is in contact with an inner side surface of the casing 1 in vicinity of an upper end of the opening 15. Thus invasion of flame into the casing 1 through the upper end of the opening 15 is prevented. Besides, gaps as air circulation paths that are formed between side edges of the opening 15 and the flat part 23 of the shield panel 20 provide ventilation in the casing 1 and improve efficiency of cooling electrical components in an electrical component box 10.

Abstract: An indoor unit of an air conditioner is provided. The indoor unit includes a cabinet, a heat exchanger, and at least one ventilation unit. The cabinet includes a plurality of discharge ports formed on different surfaces thereof. The heat exchanger is installed in one side of the cabinet. The ventilation unit is installed inside the cabinet and includes a discharge port selectively communicating with one of the plurality of discharge ports of the cabinet.

Abstract: A smaller configuration air treatment appliance that can perform multiple air treatment functions and which has a modular design that enables the manufacturer to reduce the cost of the appliance.

Abstract: Apparatus for evacuating water and dirt from a cooler box of a cooling system, incorporated with a blow-off for an air screen of the system. The water and dirt will flow through an aperture in a lower region of the cooler box into a smaller box of the apparatus disposed therebelow. A fan operable for generating the air flow through the air screen and the cooler box, also blows a portion of the flow through a blow-off channel to the air screen for blowing debris away from the air screen. The channel and smaller box are cooperatively configured such that the air flow through the channel will generate a partial vacuum condition in the smaller box operable for evacuating the water and the dirt into the channel so as to be carried away with debris from the air screen.

Abstract: An air conditioning system (10) including: extraction means for extracting air from a confined space; filtration and purification means for filtering particulate from the extracted air and purifying the air, the filtration and purification means including a separation column (11, 12) having an extracted air inlet (26) for receiving extracted air therethrough, a packed bed (31) at a predetermined first level above the extracted air inlet, water distribution means (32) above the packed bed for distributing cold water onto the packed bed, a clean air outlet (27a) above the packed bed for discharging filtered and purified air to the confined space, and a contaminated water outlet (22a).

Abstract: An electronics cabinet for storing a plurality of electronic devices therein is provided and includes a fan and an evaporative cooler. The fan draws a flow of air into the cabinet, circulates the flow of air through the evaporative cooler, and then across the electronic devices for removing heat produced by the electronic devices. The evaporative cooler removes heat from the flow of air by absorbing heat from the flow of air and then dissipating the heat by evaporating a liquid into a secondary airflow, which is directed out of the cabinet. The cabinet includes a cold air plenum having an actuator for adjusting a cross-sectional area of the cold air plenum to control the airflow through each of the supports.

Abstract: An indoor unit of an air conditioner includes an indoor unit casing, a horizontal flap, and a front panel. The indoor unit casing includes an outlet through which air is blown into a room. The horizontal flap is disposed so as to freely open and close the outlet and guides the air blown out through the outlet. In a closed state, the front panel covers at least part of the indoor unit casing and at least one end of the horizontal flap closing the outlet.

Abstract: A personal environment appliance is disclosed in which a person in a localized area can individually control the ambient conditions of the person's localized area. The control permits highly localized adjustment to suit individual preferences, thereby, reducing the impact of individual environmental preferences on the individuals. In addition to environment conditions, a variety of accessories may be provided such as beverage heaters and/or coolers.

Abstract: A housing capable of being carried into an elevator cage and turned with ease even in the elevator cage having a narrow frontage is provided. A housing 1 is configured to have a dimension A of a first face narrower than an effective doorway dimension a of an elevator cage 20, and a dimension B of a second face wider than an effective depth b of the elevator cage 20, and corner portions are chamfered in an up and down direction, and the chamfered dimension X is set to a value obtained by subtracting the effective depth b of the elevator cage 20 from the dimension B of the second face. Further, the corner portions may be chamfered in a same shape. In addition, each of the corner portions is chamfered to have an angle of approximately 45 degrees in relation to an adjoining surface.

Abstract: A method of reducing the amount of cooling energy required to cool a building is provided. The method includes disposing a porous insulating material substantially covering the ceiling in the attic space of the building to a substantial depth. The porous insulating material includes a desiccant. The method further includes permitting the desiccant-bearing porous insulating material to adsorb water moisture from the attic space and then permitting the adsorbed water moisture to desorb from the desiccant-bearing porous insulating material into the enclosed room of the building, whereby the temperature of the desiccant-bearing porous insulating material is reduced, resulting in a reduction in the amount of cooling energy required to cool the building.

Abstract: The invention relates to a cooling device for a ceiling, the device having a cooling hose (11) through which there flows a cooling medium. In order to develop in an advantageous manner a cooling device of the generic kind for a ceiling, it is proposed for an acoustic absorber in the form of an air permeable, flat foam element (7) to be located underneath and covering over the cooling hose (11).