Abstract: A one-unit type air conditioner is provided. The one-unit type air conditioner includes a cabinet defining the appearance of the air conditioner, a partition wall dividing the interior of the cabinet into indoor and outdoor sections, and a fan casing and an evaporator support frame installed in the cabinet in the indoor section of the partition wall. The partition wall includes a plate part transversely arranged in the interior of the cabinet to partition the interior into the indoor and outdoor sections, and a frame support part formed by cutting a part of the plate part to form a piece having a predetermined size and bending the piece toward the indoor section. The frame support part is spaced at a base thereof apart from the edge of the plate part by a predetermined distance and includes a margin disposed between the base of the frame support part and the edge of the plate part. The margin is bent toward the outdoor section to form a reinforcing flange for increasing the strength of the frame support part.

Abstract: A cooling system is configured to adjust cooling fluid flow to various racks located throughout a data center based upon the detected or anticipated temperatures at various locations throughout the data center. In one respect, by substantially increasing the cooling fluid flow to those racks dissipating greater amounts of heat and by substantially decreasing the cooling fluid flow to those racks dissipating lesser amounts of heat, the amount of energy required to operate the cooling system may be relatively reduced. Thus, instead of operating the devices, e.g., compressors, fans, etc., of the cooling system at substantially 100 percent of the anticipated heat dissipation from the racks, those devices may be operated according to the actual cooling needs.

Abstract: A refrigeration device is provided having an air pressurizing device and a shroud enclosing the air pressurizing device and defining a first air flow path for an air flow generated by the air pressurizing device. The air pressurizing device and the shroud are positioned in a front side of the room air conditioner. A back side of the air conditioner includes air outlets communicating with an exterior of the air conditioner. A second air flow path extends between the first air flow path and the air outlets. A slider member is positioned in the second air flow path such that in a first position the second air flow path is closed to prevent communication between the first air flow path and the air outlets and in a second position of the slider member, the second air flow path is open to allow communication between the first air flow path and the air outlets.

Abstract: In an air conditioner with a front panel projected forward, in order to increase stiffness of a body cabinet and to improve maintainability and appearance, the body cabinet is composed of: a base panel; a top panel; and a front panel, and the front panel is formed only with an air outlet port to be finished into a refined appearance having less seams, and it is adopted as basic configuration to support a front end side of the top panel by a drain pan, and further a front end side of the front panel and the front end side of the top panel are coupled to each other.

Abstract: A truck with a heating/cooling climate control system that is effectively integrated into a trailer or straight truck body, even as an after-market/field installation, which provides a uniform temperature distribution throughout the truck. An air flow which is sufficient to maintain the proper temperature environment throughout the entire beverage storage areas of the trailer or straight truck body is achieved without ducting of the supply air flow.

Abstract: A cooling device for installation in a furniture niche includes at least one thermally insulating container defining a cooling space and having a door for sealing the space, and a cooler having a compressor, a condenser, and a ventilator. The base has at least two sidewalls, a front region disposed near the door, a rear region, at least one air supply aperture at the front region, and an exhaust aperture at the rear region. The base houses the compressor, condenser, and ventilator. The base is disposed below the cooling space and is force ventilated by the ventilator through the air supply aperture and the exhaust aperture. The exhaust aperture is in at least one of the sidewalls, preferably, in the rear region of the base averted from the door. Preferably, the cooling device is installed in a furniture niche of a kitchen unit.

Abstract: The present invention provides a convenient means for delivery personnel to deliver refrigerated goods to a building without having to wait until the building owner is home. The invention provides a dual-access insulated cabinet installable into the exterior wall of a home, with outside and inside doors. Both outside and inside doors contain lockable mechanisms for securing the doors. The insulated cabinet includes a main compartment for storing items to be frozen, an interior compartment for inserting into the wall of a building, and a cooling apparatus connected to the main compartment for selectively cooling the insulated cabinet to a selected temperature. An optional indicator light is inside whereby the light turns on when a delivery of refrigerated goods is made through the outside door of the invention. The indicator light then resets to the off state when the resident of the building opens the inside door of the present invention.

Abstract: A refrigerator system includes one or more insulated cabinets structured and disposed for mounting to a wall, soffit, or ceiling so that the insulated cabinets are positioned at a height which enables easy viewing and access to items stored therein. In a preferred embodiment, at least two insulated cabinets are used, including one insulated cabinet providing a refrigerator compartment and a second insulated cabinet providing a freezer compartment. A stand-alone refrigeration and freezing unit for controlling and maintaining the temperature in the refrigerator compartment and the freezer compartment is separated from the insulated cabinets and, in the preferred embodiments, is mounted in a soffit or ceiling structure above the insulated cabinets.

Abstract: A single package wall mounted HVAC unit comprising a cabinet assembly including a primary cabinet subassembly, a back panel subassembly adapted to close the open back of the back panel subassembly, and cabinet connection means for removably attaching the primary cabinet subassembly to the back panel subassembly so that the back panel subassembly can be attached to the wall of a structure and then the primary cabinet subassembly can be positioned on and attached to the back panel subassembly. Also disclosed is a blower mounting arrangement for selectively mounting the air circulation blower within the cabinet subassembly in different positions to attenuate the blower noise transmitted to the conditioned space. An interlock is disclosed for the control box to prevent the control box cover from being removed without disconnecting the HVAC unit from the power supply.

Abstract: A system of and a method of cooling an interior of a room provided with a wall air conditioning unit has an air conditioning unit installable in a the wall of the room and having an inlet for entering of an outside air and an outlet which is open into the interior of the room, and a guide having one end connected with the output of the air conditioning unit and extending vertically upwardly from the air conditioning unit to an upper area of the room so as to release a cool air not at a level of the air conditioning unit but as the upper level of the room.

Abstract: An air conditioning module applicable to a partition panel is disclosed herein. The air conditioning module includes a heat exchanger and a blower mounted inside the panel. The partition panel is suitable for assembling a modular personal working compartment in an office. A heat transfer medium is provided to the air conditioning module for generating cooled or heated air for the personal working space. The operation of the air conditioning module can accommodate individual needs, as well as save energy.

Abstract: In an air conditioner with a front panel projected forward, in order to increase stiffness of a body cabinet and to improve maintainability and appearance, the body cabinet is composed of: a base panel; a top panel; and a front panel, and the front panel is formed only with an air outlet port to be finished into a refined appearance having less seams, and it is adopted as basic configuration to support a front end side of the top panel by a drain pan, and further a front end side of the front panel and the front end side of the top panel are coupled to each other.

Abstract: An air conditioner which can be installed easily at a corner of a room is presented. This is an air conditioner which can be installed at a corner between a first wall and a second wall of a room. It has a frame body having an upper part, a lower part, and side parts, a blower for circulating air, a heat exchanger for exchanging heat with the air, an air diffuser for blowing out the air into the room, a space positioned at an edge of the corner, and a piping connected to the heat exchanger. The connection port of the piping is placed at least at one of (a) a position projecting into the space and (b) a place near the space. This is an installation tool for installing an air conditioner main body having a first side surface and a second side surface at a corner of a first wall and a second wall of a room. The tool includes a first installation board having a first base part and a first stopping part, and a second installation board having a second base part and a second stopping part.

Abstract: A building includes an exterior wall provided with a door which can be opened to expose a plurality of compartments for receiving a wide range of deliverable products. The compartments are defined as sections of one or more appliances. Preferably, the exterior door can be used to expose both fresh food and freezer compartments of a refrigerator, as well as one or more compartments of an oven unit. Each of the compartments is also accessible from an interior of the building through an associated inner door. The inner and outer doors can be electronically latched and are linked together such that at least the exterior door is prevented from being opened whenever a specified interior door is open.

Abstract: An air conditioner which can be installed easily at a corner of a room is presented. This is an air conditioner which can be installed at a corner between a first wall and a second wall of a room. It has a frame body having an upper part, a lower part, and side parts, a blower for circulating air, a heat exchanger for exchanging heat with the air, an air diffuser for blowing out the air into the room, a space positioned at an edge of the corner, and a piping connected to the heat exchanger. The connection port of the piping is placed at least at one of (a) a position projecting into the space and (b) a place near the space. This is an installation tool for installing an air conditioner main body having a first side surface and a second side surface at a corner of a first wall and a second wall of a room. The tool includes a first installation board having a first base part and a first stopping part, and a second installation board having a second base part and a second stopping part.

Abstract: The invention includes a liquid pumping system. The liquid is preferably condensate and the condensate pumping system may include a tank having an upper reservoir and a sump disposed below the upper reservoir. The upper reservoir may include an orifice and may be positioned to receive condensate from an evaporator. The condensate pumping system may also include a device to seal the orifice, a condensate tube connected to the sump, and an air pump attached to the sump through an air tube.

Abstract: A data center having multiple rows of computer racks for holding heat-generating computer equipment is cooled by a liquid overfeed air conditioning unit that provides supply air at a temperature of about forty degrees Fahrenheit (40° F. or lower). The air conditioning unit is positioned outside the data center. Ducting from the heat exchanger outlet of the unit is connected to supply registers mounted in aisles that are provided between the rows of computer racks so that very cold supply air enters the space between the racks. Each computer rack includes vertically spaced compartments that house computer components to be cooled. At least one circulation fan is associated with each compartment and causes supply air to flow through the compartment to cool the components. The supply air gradually warms as it flows through successive compartments and is approximately 72° Fahrenheit when it reaches a return register in the ceiling of the data center.

Abstract: A compact transport temperature control unit includes an electrically-powered condenser assembly, an electrically-powered evaporator assembly and an electrically-powered compressor. The electrical power is supplied from a source external to the transport temperature control unit.

Abstract: There is disclosed a ceiling embedded type indoor unit which is reduced in height to provide a compact unit body size and which provides a large cooling/heating capability. The ceiling embedded type indoor unit comprising two air blowoff ports and embedded in a ceiling comprises a heat exchanger formed in a U-shape with sides of the U-shape being disposed on long sides of a unit body and connected to a header pipe for circulating a coolant at one end of an open side of the U-shape, air blowoff ports disposed to extend from a bottom side the U-shape, and a centrifugal blower disposed aside to the bottom side of the U-shape relative to a substantial center of a length direction of the sides of the U-shape.

Abstract: A simple, reliable, compact, low cost and low power cooling system is disclosed. The cooling system is especially suited for an electronic equipment enclosure which is located out-of-doors. The cooling system runs on community AC power which is converted to DC. If community power is disrupted, the cooling system takes power from back-up batteries. If a compressor of the cooling system drops to a temperature of 0° C., a heating subsystem including a conduit loop that runs around the compressor and into the equipment chamber of the enclosure for transporting a heat transferring fluid, is activated for transferring heat from the equipment chamber to the compressor. A closed conduit loop is used to pump a mixture of ethylene glycol between the vicinity of the compressor and the interior of the equipment chamber. In this way, heat generated by the equipment to be cooled is transferred to the compressor to heat the enclosed refrigerant and the equipment is simultaneously cooled.

Abstract: An air handling apparatus and method for installation where a cabinet is connected to a mounting plate with a mounting bracket, the mounting plate is attached to an electrical equipment enclosure. Gravity and latching screws secure the cabinet to the mounting plate and also facilitate a seal between the cabinet and the enclosure. After connection of the cabinet to the mounting plate, the mounting plate and mounting brackets are concealed from view by the cabinet and enclosure. The mounting bracket is a combination of hooks and slots. Panel elements of the cabinet are interconnected using a combination of hooks and slots with seals compressed between the panels. The cabinet includes a horizontally disposed evaporator coil, the evaporator coil between an evaporator blower and a condenser blower. Air conditioning elements are vertically stacked within the cabinet. Airflow in the cabinet is generally upward in both the internal and external circulation regions.

Abstract: Disclosed herewith is a wall mounted air conditioner. The air conditioner comprises an air conditioner body installed in an installation space of a building and provided with an exhaust hole on its top. A frame is situated in the installation space for guiding the installation and removal of the air conditioner body. A connecting duct is fitted into the air conditioner body and the frame to connect the exhaust hole of the air conditioner body to a duct mounted in the building when the air conditioner body is moved into the installation space. The wall mounted air conditioner can be easily moved into an installation space for installation and easily removed from the installation space for repair or replacement.

Abstract: A room air conditioner mounted on an external building wall, comprising an indoor unit, an outdoor unit and an interface unit. The indoor unit includes an indoor cabinet having a suction opening and outlet port for indoor air, an indoor heat exchanger, and an indoor fan. The outdoor unit includes an outdoor cabinet having a suction opening and outlet port for fresh air, an outdoor heat exchanger, an outdoor fan and a fan motor which engages the outdoor and indoor fans. The interface unit is mounted in the external building wall and includes a fan drive shaft engaged at the first end by the fan motor in the outdoor cabinet and engaging the indoor fan.

Abstract: A structural framework for an air distribution unit of the type which includes a housing having an evaporator coil supported therein in an air flow path and a fan for effecting air flow along the flow path. The framework includes a main support frame including a bottom section, a vertically extending back section, and a top section extending forwardly from the top of the back section. The back section and the top section have the same width as the bottom section, and the bottom section and the back section each have right and left hand edges. Vertically extending left and right side walls are structurally interconnected at lower edges thereof to the right-hand edges of the bottom section and the back section, respectively. Each of the side walls has a rectangular lower section and an upper triangular section extending from the upper end of the rectangular section.

Abstract: A window-type of integrated air-conditioner is mainly characterized in that the assembly of evaporator is composed of several sections of the evaporator connected from the beginning to the end and is arranged in a folded form, its condensers are two sets, to see from the top, they are arranged in a V shape, the intersecting point of the two sets of the condensers is towards the inside of the room, using the present invention has the advantages of higher heat-exchanging efficiency, low noise, well-distribution of heat exchange and marked increase of energy-to-efficiency ratio, etc., such as a window-type of air-conditioner with the refrigerating capacity 2500 W, after this structure is used, its noise can be reduced to 45 dB(A), the energy-to-efficiency ratio can reach 2.5 W/W so as to effectively overcome the deficiencies of the prior art, it is a more ideal new window-type of air-conditioner.

Abstract: An electrical power cord arrangement for a room air conditioner of the type having an indoor section, an outdoor section, an electrical control box contained within the indoor section and an outer housing partially enclosing both sections. The outer housing has an access opening therein in the region thereof which encloses the outdoor section. An electrical power cord having a first end, which terminates within the electrical control box extends from the control box, through the housing, into the outdoor section of the air conditioner where it then passes from the housing through the access opening to the exterior thereof, where it terminates in a second end configured to be connected to a source of electrical power.

Abstract: An air handling apparatus and method for installation where a cabinet is connected to a mounting plate with a mounting bracket, the mounting plate is attached to an electrical equipment enclosure. Gravity and latching screws secure the cabinet to the mounting plate and also facilitate a seal between the cabinet and the enclosure. After connection of the cabinet to the mounting plate, the mounting plate and mounting brackets are concealed from view by the cabinet and enclosure. The mounting bracket is a combination of hooks and slots. Panel elements of the cabinet are interconnected using a combination of hooks and slots with seals compressed between the panels. The cabinet includes a horizontally disposed evaporator coil, the evaporator coil between an evaporator blower and a condenser blower. Air conditioning elements are vertically stacked within the cabinet. Airflow in the cabinet is generally upward in both the internal and external circulation regions.

Abstract: An integral type air conditioner is provided having its main unit fastened to an outer case by fastening device at a position manageable inside the room, instead of by fastening the main unit to the outer case with screws inserted from the outside of the outer case through the side faces thereof. Regardless of conditions of installation, the main unit can easily and surely be fastened and the main unit is never pushed out from the outside to the inside of the main unit. The integral type air conditioner has the outer case attached to an opening of a wall and the main unit is slid into the outer case and installed therein. The fastening device is provided for securely coupling the main unit and the outer case to each other at a position manageable inside the room so as to prevent the main unit from being pushed out into the room.

Abstract: Console air conditioning units particularly useful for retrofit conversions, but having advantageous features for new installations as well. For retrofit applications, the console air conditioning units have the same “footprint” as an original package unit, and accordingly can be used to replace a worn-out console package unit without requiring any architectural changes. An indoor cabinet is subdivided at least into a plenum compartment having an air discharge opening and either a machinery compartment or a room air return compartment. The machinery compartment or room air return compartment occupies only a portion of the width of the cabinet, and a utility storage volume occupies an adjacent portion of the width. Preferably the plenum compartment is located in an upper portion of the cabinet above the machinery compartment or room air return compartment, and extends substantially the entire width of the cabinet along a wall.

Abstract: An air distribution unit of the type including a housing defining an air inlet, an air outlet, and an air flow path therethrough extending from the inlet to the outlet. The unit includes an evaporator coil supported in the housing in the air flow path and a fan and motor assembly for effecting air flow along the air flow path and through the evaporator coil. The housing includes external cover components including a front panel and left and right external side covers. An internal structural framework of the unit supports components internally of the housing and also supports the external components. The framework includes at least one horizontally extending structure member and at least one vertically extending structural side panel structurally attached to the horizontal member in perpendicular relationship thereto. The fan and motor assembly includes a centrifugal fan having a horizontal axis of rotation and an electric motor having an axis coincident with the fan, which is drivingly coupled to the fan.

Abstract: Air conditioner comprising a condenser unit (1), through which a flow of external air passes between an inlet section (3) and an outlet section (4), and an evaporation unit (2), through which a flow of internal air passes between an inlet section (5) and an outlet section (6), wherein the condenser unit (1) is provided with at least two connections with the exterior (8) designed to mate with small-diameter circular holes (7) communicating with the external environment.

Abstract: A unit is installed easily and safely on a vertical member within hand's reach from above. An indoor unit is installed indoors and has a hook extending downward from the upper part of the back side of the indoor unit. An outdoor unit is installed outdoors to cooperate with the indoor unit. An installation member including a yoke is fitted to the vertical member with bolts. A holding part having the hook of the outdoor unit is engaged with the upper part of this yoke from above, and extended laterally for stopping it from beneath. A stopping part is provided beneath the holding part of the front side of the yoke for stopping the back side of the outdoor unit at a specified position.

Abstract: A low noise window-type air conditioner is disclosed which consists of a shell, a compressor, an outdoor fan, an indoor fan, an evaporator and a condenser. The air conditioner has one motor which drives the outdoor fan and a second motor which drives the indoor fan. Because the outdoor fan and the indoor fan are in separate compartments and are driven separately and individually by each other, the difficulty of motion equilibrium can be overcome easily, and the vibration and noise is decreased extensively.

Abstract: A heat pump housing made from plastic is disclosed herein. The housing is preferably two-piece including a wall plate and a shell. The wall plate may be secured to conventional wall studs and provides outside air intake and exhaust openings. The wall plate additionally provides supports for the temporary support of the shell while the shell is being secured to the wall plate. The shell includes chambers for conditioned and unconditioned air, a removable drain shelf separating the two; and shelves for support of the compressor, blowers and other conventional heat pump features.

Abstract: The constitution has (a) an outdoor unit, and (b) an indoor unit including a wind circuit unit having an air suction port, a heat exchanger and blowing means, an air stream control unit having an air diffuser and air stream control means, and an electrical unit having an electric control device and an electric circuit. At least one of the wind circuit unit, the air stream control unit, and the electrical unit is formed separately, and the one unit and the remaining units of the plurality of units are mutually assembled integrally to form the indoor unit. The indoor unit composed of the wind circuit unit, air stream control unit, and electrical unit possesses a front surface having a continuous pattern. In this constitution, it is possible to obtain an indoor unit of an air conditioner having such effects as excellent appearance, small number of parts, enhanced ease of disassembling, excellent working efficiency in mounting, and excellent working efficiency in repair service.

Abstract: An integral type air conditioner includes an interior heat exchanger, an interior blower, an exterior heat exchanger, an exterior blower, an interior motor, and an exterior motor. In addition, a partition member separates the interior heat exchanger and the interior blower at the interior side from the exterior heat exchanger, the exterior blower, the interior motor and the exterior motor at the exterior side.

Abstract: Console air conditioning units particularly useful for retrofit conversions, but having advantageous features for new installations as well. For retrofit applications, the console air conditioning units have the same "footprint" as an original package unit, and accordingly can be used to replace a worn-out console package unit without requiring any architectural changes. An indoor cabinet is subdivided at least into a plenum compartment having an air discharge opening and either a machinery compartment or a room air return compartment. The machinery compartment or room air return compartment occupies only a portion of the width of the cabinet, and a utility storage volume occupies an adjacent portion of the width. Preferably the plenum compartment is located in an upper portion of the cabinet above the machinery compartment or room air return compartment, and extends substantially the entire width of the cabinet along a wall.

Abstract: A refrigeration apparatus containing a thermostat, adapted for use in a food storage compartment potentially containing a flammable gas, includes a thermostat and an enclosure forming a chamber configured to house the thermostat. The enclosure has two umbrella-type check valves configured to permit gas to pass into the chamber or out of the chamber when a predetermined pressure differential exists between the chamber and the food storage compartment. The enclosure forms a seal with the thermostat so that gas only passes through the check valves.

Abstract: A refrigerator for recreational vehicles comprising a generally cubic cabinet having front, back and top sides along with absorbent-type refrigerating apparatus on the back side. A flap member adjustably mounted on the back side at a position above the refrigerating apparatus extends upwardly and outwardly from the cabinet into sealing engagement with the walls of the compartment in the recreational vehicle in which the refrigerator is installed. The configuration of the flap member and the mounting of the flap member so that it can readily be adjusted to a number of positions enhances the ability of the flap member to prevent gases created by the refrigerating apparatus from propagating into the living quarters of the recreational vehicle.

Abstract: The invention relates to a wall air conditioning apparatus for a control panel, with a fan and a lamellar heat exchanger, featuring a box-like housing with an upper inlet opening and a lower outlet opening in the wall that faces the control panel, whereby the fan is arranged behind the inlet opening and the lamellar heat exchanger is arranged under the fan and over the outlet opening at an acute angle to this wall. For improved ventilation and drainage of condensation water, it is provided that the lamellae of the lamellar heat exchanger are at an acute angle to the floor of the housing and drop off toward the wall that faces away from the control cabinet, and that the floor of the housing is provided with a drain for condensate.

Abstract: An air conditioner includes an inlet for receiving room air, a heat exchanger for heating or cooling the air, an outlet for discharging the heated or cooled air back into the room, a fan for circulating the air through the air conditioner, inlet and outlet doors for opening/closing the inlet and outlet, a motor for driving the doors, and a controller for automatically actuating the motor to open the doors when the air conditioner is activated, and close the doors when the air conditioner is deactivated. A control by-pass is provided in a remote controller which is relatively inaccessible to a normal user but which can be actuated by an air conditioner tester or shipper for maintaining the doors open even when the air conditioner is deactivated (e.g., during testing or shipping) to prevent the doors from being damaged.

Abstract: An air return bulkhead is disclosed which may be adapted to fit on differently-sized trailer walls around differently-sized trailer refrigeration units. The bulkhead includes an upper support panel with ridges or other discontinuities thereon. The discontinuities bound areas sized to accommodate standard refrigeration units, and a cutting tool may be easily guided along these discontinuities to form a space wherein the refrigerator may be fit when the bulkhead is mounted to the trailer wall. Also disclosed is a bulkhead which includes flutes and columns thereon wherein the ends of the flutes and columns may be removed by use of a cutting tool to allow the bulkhead installer to tailor the airflow into the refrigerator inlet as desired.

Abstract: An integrated combined heating and cooling unit comprises a known high efficiency gas fireplace unit stacked on top of a known high efficiency window type air conditioning unit. Novel vent adapters are connected to the rear of the units for connecting them to a source of outside combustion and cooling air to effect high efficiency operations. Novel controls comprise a fireplace relay and an air conditioning relay mounted inside of each of the units. The relays control the on-off operation of the respective units and are actuated by a thermostatic control preferably located remote from the combined units.

Abstract: A doghouse having an heating and air conditioning unit installed therein with insulated walls, an insulated roof, hinges connecting the roof on one of its sides to the upright walls for easy access by the pet owner to the controls of the heating and air conditioning unit. The present invention also has a flexible door covering with laterally overlapping parallel strips that are made from a heavy material so as to be minimally affected by tangling and frequent wind interaction. The strips are vertically hung from the upper part of the door opening to allow pets freedom of access in and out of the doghouse, while at the same time retaining the major portion of the climate controlled air within the insulated walls and roof of the doghouse during pet use.

Abstract: Internal air-conditioning unit to be installed at the top of a wall, in which suction of the air introduced in the room is performed in the top part of the casing, the evaporation set being provided in the vicinity of the rear wall thereof. The invention solves the problem of introducing into the room fresh external air, without having to use other external air-driving means.

Abstract: A console package air conditioning unit of the split-system type, particularly useful for retrofit conversion, but useful for new installations as well. The console package air conditioning unit is the same physical size as a self-contained package console unit being replaced, but contains essentially just an indoor heat exchanger and a blower for recirculating indoor air over the indoor heat exchanger. Being of the same physical size and having the same "footprint", the worn-out package unit is replaced without requiring any architectural changes. The left-over interior volume realized by removing the system compressor and outdoor heat exchanger to an outdoor unit is utilized as a utility storage volume, such as bookshelves. There are both a room air return opening for allowing room air to be drawn in over the indoor heat exchanger, and a ventilation opening for allowing outside air to be drawn in by a blower.

Abstract: A cooling system for cooling warm air within the interior of a closed electrical cabinet containing electronic equipment or the like, comprising an enclosure adapted to be mounted on an exterior surface of the cabinet. The interior of the enclosure is separated into an internal circulation region and an external circulation region. Ambient air for removing heat from a condenser coil is drawn into the external circulation region through the bottom of the enclosure and the ambient air is also discharged out the bottom of the enclosure at a higher velocity than the ambient air being drawn into the bottom of the enclosure.

Abstract: An air conditioner including an outdoor unit containing a compressor and an outdoor heat exchanger therein, at least one indoor unit having both of an indoor heat exchanger and an electric expansion valve, and a pressure reducing member which is linked to the electric expansion valve in parallel in a refrigerant circuit and serves as resistance to refrigerant flowing therethrough. The valve opening degree of the electric expansion valve of the indoor unit when a room heating operation is stopped is set to be smaller than the valve opening degree of the electric expansion valve of the indoor unit when the room heating operation is conducted, and the resistance value of the pressure reducing member is set to be smaller than the resistance value to be provided to the refrigerant in accordance with the valve opening degree of the electric expansion valve when the room heating operation is stopped.

Abstract: A heat pump unit for use in small buildings where the unit must be stored in a confined space, not having access to the exterior walls of the building. The unit is contained within a rectangular housing that is divided into three compartments. An outdoor air compartment is vertically disposed between the top and bottom walls at the rear of the housing and an indoor air compartment and a compressor compartment are mounted one over the other at the front of the housing. An outdoor air blower is mounted outside of the housing to save space and is arranged to move air through the outdoor air compartment along a vertical path of travel. An interior vertical wall separates the rear compartment from the two front compartments and contains an upper vertical section and rear wall offset lower vertical section joined by an angularly disposed intermediate section along a vertical path of travel.

Abstract: A mounting arrangement for a fan assembly having a fan mounting plate. The mounting plate is adapted to be received in a structural retainer at a lower end thereof and is provided with a notch in the upper edge thereof which is adapted to engage a U-shaped bracket in the wall to which the assembly is being attached. Attachment of the mounting plate to the wall is achieved by use of a retaining clip comprising three spaced parallel fingers. The middle finger of the clip is received within the U-shaped bracket and the two other fingers are adapted to engage the plate on opposite sides of the notch. When the clip is inserted into engagement, the thickness of the fingers is such that the clip is frictionally retained in the described position to thereby hold the plate in operable engagement with the wall.