Whole building air conditioning system

Abstract

An object of the present invention is to provide a novel system that utilizes the underfloor space to supply conditioned air to a living space without impairing the convenience of the living space. [Solution] In order to solve the above problem, the present invention comprises an air conditioning unit arranged between a base floor and a floor above the base floor, a lower level supply path that guides conditioned air supplied from the air conditioning unit to the underfloor space of the base floor, and an outlet for supplying the conditioned air that has become airtight in the underfloor space to the area to be air-conditioned.

Description

[Technical Field]

[0001] The present invention relates to a central air conditioning system. [Background technology]

[0002] Conventionally, a whole-house air conditioning system using an underfloor air conditioner has been known as a system that can heat a house with a single air conditioner. An example of such a system is disclosed in, for example, Non-Patent Document 1.

[0003] In Non-Patent Document 1, conditioned air is supplied once to the underfloor space from a total heat exchange ventilation system and an indoor unit installed on the first floor, and the conditioned air stored under the floor is then supplied into the room through the underfloor space on the first floor and the ceiling on the second floor, thereby heating the room. [Prior art documents] [Patent documents]

[0004] [Non-Patent Document 1] "Air Volley Next System Configuration," [Retrieved June 4, 2024], Internet<https: / / www.greenbuilding.jp / products / ventilation / index-kimura-airvolleynext.html> Summary of the Invention [Problem to be solved by the invention]

[0005] In the whole-building air conditioning system described in Non-Patent Document 1, conditioned air supplied from the air conditioning unit and total heat exchange ventilation system is guided into the underfloor space, and the positive pressure of the conditioned air is used to supply it to the living space (the area to be air-conditioned). However, in Non-Patent Document 1, the air conditioning unit is installed on the floor inside the first floor, which has the problem of detracting from the design of the room and reducing the usable floor area.

[0006] Furthermore, the central air-conditioning system of Non-Patent Document 1 has a problem in that conditioned air cannot be supplied to the area to be air-conditioned on the second floor unless the blower fan is started.

[0007] In view of the above problems, an object of the present invention is to provide a novel system that utilizes the underfloor space to supply conditioned air to a living space without impairing the convenience of the living space. [Means for solving the problem]

[0008] In order to achieve the above object, the present invention comprises an air conditioning unit arranged between a base floor and a floor above the base floor, a lower level supply path that guides conditioned air supplied from the air conditioning unit into the underfloor space of the base floor, and an outlet for supplying the conditioned air that has become airtight in the underfloor space to the area to be air-conditioned. This configuration allows conditioned air to be supplied to the underfloor space without installing an air conditioning unit in the area to be air-conditioned. This does not reduce the usable range of the area to be air-conditioned, allowing users to live without compromising the convenience of the area to be air-conditioned.

[0009] Preferably, the whole-building air-conditioning system further includes an upper floor supply path for guiding the conditioned air supplied from the air conditioner to the upper floors. This configuration makes it possible to utilize the underfloor space and efficiently supply conditioned air to the base floor and upper floors. As a result, even if the conditioned air supplied to the underfloor space does not have sufficient positive pressure, conditioned air can still be supplied to the air-conditioned areas on the upper floors.

[0010] Preferably, the whole-building air conditioning system further comprises a ventilation device, the air conditioning device comprising a first air supply section that supplies a first conditioned air element that is the basis of the conditioned air, a second air supply section that supplies a second conditioned air element supplied from the ventilation device, and a mixing section to which the supply path is connected and which has a predetermined space for mixing the first conditioned air element and the second conditioned air element, and the mixing section discharges the conditioned air based on the supplied first conditioned air element and the second conditioned air element into the supply path. With this configuration, the temperature of the conditioned air supplied to the area to be air-conditioned can be adjusted to an appropriate temperature by mixing the conditioned air supplied from the air conditioning unit with the conditioned air supplied from the ventilation unit.

[0011] Preferably, the mixing section arranges the first air supply section and the second air supply section so that the direction in which the first conditioned air element is supplied and the direction in which the second conditioned air element is supplied form an angle of at least a certain value, and discharges the conditioned air as a mixture of the first conditioned air element and the second conditioned air element into the supply path.

[0012] Preferably, the mixing section arranges the first air supply section and the second air supply section so that the angle between the direction in which the first air conditioning element is supplied and the direction in which the second air conditioning element is supplied is perpendicular or anti-parallel. With this configuration, the conditioned air supplied from the air conditioner and the conditioned air supplied from the ventilation device can be mixed more effectively.

[0013] Preferably, the lower supply path has a flow regulator for adjusting the volume of the conditioned air, and when the conditioned air supplied from the underfloor space to the air-conditioned area satisfies predetermined conditions, the flow regulator adjusts the volume of the conditioned air supplied from the underfloor space to the air-conditioned area out of the total volume of the conditioned air supplied from the air conditioning device. This configuration makes it possible to prevent more conditioned air than necessary from being supplied to the area to be air-conditioned on the reference floor, thereby enabling efficient air-conditioning of the entire building.

[0014] Preferably, the whole-building air conditioning system further includes a ventilation device, and the air-conditioned area has a return air vent for guiding return air from the area to the air conditioning device, an exhaust air vent for guiding exhaust air from the area to the ventilation device, and the exhaust air vent, and the exhaust air vent and / or the return air vent are located in one of the two areas into which the air-conditioned area is divided, and the exhaust air vent is located in the other of the two areas into which the air-conditioned area is divided. With this configuration, when conditioned air supplied from the underfloor space is supplied to the air conditioning unit or ventilation unit, it flows diagonally across the area to be conditioned, allowing conditioned air to be distributed throughout the entire area to be conditioned.

[0015] Preferably, the whole-building air conditioning system comprises a supply path for supplying the conditioned air to the space within the partition, and a partition outlet for supplying the conditioned air that has become airtight in the space within the partition to the area to be air-conditioned, and a baseboard or molding having a gap is used as the partition outlet. With this configuration, there is no need to install a new outlet when supplying the conditioned air supplied to the space within the partition to the area to be air-conditioned, which reduces the construction costs of the area to be air-conditioned and ensures design integrity. [Effects of the Invention]

[0016] According to the present invention, a novel system can be provided that utilizes the underfloor space to supply conditioned air to a living space without impairing the convenience of the living space. [Brief explanation of the drawings]

[0017] [Figure 1] 1 is a schematic diagram of an entire building according to an embodiment of the present invention. [Figure 2] FIG. 2 is a schematic diagram showing a building from another perspective according to an embodiment of the present invention. [Figure 3] 1 is a schematic diagram showing a specific configuration of an air conditioning device according to an embodiment of the present invention. [Figure 4]1 is a schematic diagram showing an air conditioning system using a partition wall according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0018] Hereinafter, a central air-conditioning system according to each embodiment of the present invention will be described with reference to the drawings. The description will be made in detail in the order of the configuration of the embodiment, the method of implementation, and other examples. The following embodiments are merely examples of the present invention, and the present invention is not limited to the following embodiments. Furthermore, the term "substantially" in the application documents is a concept that includes cases where the subsequent shape is chamfered or rounded, and where the elements that make up the shape are deformed or changed in length within a range that does not impede the purpose of the configuration.

[0019] As shown in Fig. 1, the present invention is a central air conditioning system that is installed in a building 1 and that conditions the entire building 1. The building 1 is a detached house that has at least an air-conditioned area 11, an air conditioner 12 installed between a reference floor and a floor above the reference floor, a supply path 13 for guiding conditioned air supplied from the air conditioner 12 to the air-conditioned area 11, an underfloor space 14 directly below the air-conditioned area 11 on the reference floor, a ceiling 15 on the upper floor, a ventilation device 16, an outdoor unit 17, and a partition space 18 that is a space created by a partition wall.

[0020] In this embodiment, the detached house is a two-story building, with the reference floor being the first floor and the upper floor being the second floor. On the other hand, the building may be three or more stories, in which case the reference floor does not have to be the first floor. For example, in the case of a three-story detached house, the second floor may be the reference floor and the third floor may be the upper floor. In addition, in the case of a three-story detached house, the first floor may be the reference floor and the third floor may be the upper floor.

[0021] In addition, SA, RA, OA, and EA shown in Figure 1 respectively represent supply air sent from the air conditioner to the room, return air drawn from the room to the air conditioner, outside air drawn from the outside to the room, and exhaust air discharged from the room to the outside.

[0022] <1. Configuration of air-conditioning target area 11> The air-conditioned area 11 is a living space in the building 1. The air-conditioned area 11 has a thermal bridge 110 that easily exchanges heat with the outside environment, a return air vent 111 for guiding return air from the area to the air conditioner 12, an exhaust air vent 112 for guiding exhaust air from the area to the ventilation device 16, and a floor discharge port 113 for supplying conditioned air supplied from the air conditioner 12 to the area.

[0023] The thermal bridge 110 is provided on the wall surface of the air-conditioned area 11, and is a window in FIG. 1, but it may also be a door or the like. If the thermal bridge 110 is a window, the thermal bridge 110 is provided on the approximately south side or approximately east side. This allows for increased lighting in the air-conditioned area 11.

[0024] The return air vent 111 is provided on the boundary surface of the air-conditioned area 11 and is connected to the air conditioner 12 via a return air path. Preferably, the return air vent 111 is provided on the ceiling of the air-conditioned area 11. Also preferably, the return air vent 111 is provided on the ceiling of the air-conditioned area 11 on a floor lower than the floor on which the air conditioner 12 is installed. Note that the return air vent 111 may also be provided on the floor of the air-conditioned area 11 on a floor higher than the floor on which the air conditioner 12 is installed.

[0025] The exhaust outlet 112 is provided on the boundary surface of the air-conditioned area 11 and is connected to the ventilation device 16 via an exhaust path. Preferably, the exhaust outlet 112 is provided on the ceiling of the air-conditioned area 11. More preferably, the exhaust outlet 112 is arranged in one of the air-conditioned areas 11 divided into two areas, and the floor discharge outlet 113 is arranged in the other of the air-conditioned areas 11 divided into two areas. More preferably, the exhaust outlet 112 is arranged on the ceiling of one of the air-conditioned areas 11 divided into two areas, and the floor discharge outlet 113 is provided on the floor of the other of the air-conditioned areas 11 divided into two areas. Even more preferably, the exhaust outlet 112 and the multiple floor discharge outlets 113 arranged in each of the air-conditioned areas 11 divided into two areas are provided at the furthest positions between the areas.

[0026] Fig. 2 is an elevation view of the building 1 in Fig. 1 as seen from the outdoor unit 17 side. As shown in the figure, by arranging the floor discharge outlet 113 and the exhaust outlet 112 so that they are located diagonally on a plane in the air-conditioned area 11, it becomes possible for the conditioned air supplied from the floor discharge outlet 113 to flow diagonally across the air-conditioned area 11, thereby enabling efficient temperature adjustment within the area. Furthermore, like the exhaust outlet 112, the return air vent 111 may also be arranged on the ceiling in the air-conditioned area 11, diagonally on a plane to the floor discharge outlet 113.

[0027] 1, the exhaust vent 112 is provided in the air-conditioned area 11 on one base floor, but it may be provided on the boundary surface of two or more or all of the air-conditioned areas 11 in the building 1. When the exhaust vent 112 is provided in the air-conditioned area 11 on an upper floor, the exhaust vent 112 is provided on the floor.

[0028] The floor discharge port 113 is provided on the floor of the air-conditioned area 11, and is configured as a linear outlet for conditioned air, with the air volume adjustable. Preferably, the floor discharge port 113 is arranged along the wall surface of the air-conditioned area 11. Also preferably, the floor discharge port 113 is configured so that the air direction is adjustable, and supplies conditioned air to the air-conditioned area 11 toward the exhaust port 112. This makes it easier for the conditioned air to flow throughout the entire air-conditioned area 11, allowing for more efficient temperature adjustment.

[0029] In another preferred embodiment, the floor discharge port 113 is provided near the thermal bridge 110. Specifically, the floor discharge port 113 is arranged parallel to the thermal bridge 110 and configured so that the airflow direction is parallel to the window. This prevents air whose temperature has changed through the thermal bridge 110 from spreading into the air-conditioned area 11. It also reduces heat radiation caused by the temperature difference between the thermal bridge 110 and the air-conditioned area 11.

[0030] 2. Configuration of Air Conditioner 12 The air conditioner 12 is connected to the ventilation device 16 via a duct, and discharges conditioned air, including conditioned air supplied from the ventilation device 16, to the supply path 13.

[0031] FIG. 3 is a plan view showing a specific configuration of the air conditioner 12. As shown in FIG. The air conditioner 12 comprises a first air intake section 120 that supplies the first conditioned air element that is the basis of conditioned air, a second air intake section 121 that supplies the second conditioned air element that is supplied from the ventilation device, a mixing section 122 to which the supply path 13 is connected and which has a predetermined space for mixing the first conditioned air element and the second conditioned air element, and a refrigerant path 123 that mediates the exchange of refrigerant between the first air intake section 120 and the outdoor unit 17.

[0032] The first air supply section 120 is a so-called duct-type ceiling cassette air conditioner, which adjusts the temperature of the first conditioning air element based on the temperature specified by the user and the return air RA drawn in from the return air outlet 111, and discharges it to the mixing section 122.

[0033] The second air supply section 121 is a so-called duct, and discharges the second conditioned air element supplied from the ventilation device 16 to the mixer section 122.

[0034] The ventilation device 16 is a so-called total heat exchange ventilation system, and is installed in the underfloor space 14, the ceiling of the base floor, or the ceiling of an upper floor. The ventilation device 16 exhausts exhaust air EA taken in from the air-conditioned area 11 through the exhaust port 112 to the outside of the building 1, and also takes in outside air from the outside of the building 1, and supplies the outside air after heat exchange with the exhaust air EA to the second air supply section 121 as a second conditioned air element.

[0035] The mixer 122 is a so-called chamber box that discharges conditioned air based on the supplied first and second conditioned air elements into the supply path 13. Preferably, the mixer 122 arranges the first air supply unit 120 and the second air supply unit 121 so that the direction in which the first conditioned air element is supplied and the direction in which the second conditioned air element is supplied form an angle of at least a certain value, and discharges conditioned air that is a mixture of the first and second conditioned air elements into the supply path 13. More preferably, the mixer 122 arranges the first air supply unit 120 and the second air supply unit 121 so that the angle between the direction in which the first conditioned air element is supplied and the direction in which the second conditioned air element is supplied is perpendicular or anti-parallel. More preferably, the second air supply unit 121 and the supply path 13 are adjacent to each other and arranged so that the angle between the direction in which the first conditioned air element is supplied and the direction in which the second conditioned air element is supplied are approximately anti-parallel. In the example of Figure 3, the first air supply section 120 and the supply path 13 are arranged adjacent to each other, and the angle formed by the direction in which the first conditioning air element is supplied and the direction in which the second conditioning air element is supplied is anti-parallel.

[0036] In conventional air conditioners (air conditioners), conditioned air at a temperature higher or lower than the temperature of the intake return air RA is supplied directly to the air-conditioned area 11. However, in this case, if the conditioned air directly hits the body, the body is exposed to a temperature higher than necessary, which can lead to poor health in some cases. On the other hand, in the air conditioner 12 of the present invention, the first conditioned air element supplied from the first air supply section 120 based on the return air RA is mixed with the second conditioned air element supplied from the ventilation device 16, thereby making it possible to adjust the temperature of the conditioned air supplied to the air-conditioned area 11, allowing the user to live comfortably even when directly exposed to conditioned air supplied from the floor discharge outlet 113.

[0037] Furthermore, in a preferred embodiment of the present invention, the mixing section 122 is configured such that the first air supply section 120 and the second air supply section 121 are arranged so that the angle between the direction in which the first conditioned air element is supplied and the direction in which the second conditioned air element is supplied is anti-parallel, thereby causing frequent collisions between the molecules of the first conditioned air element and the second conditioned air element, which have different molecular momentum, and enabling the temperature of the conditioned air to be adjusted in a short period of time.

[0038] In a preferred embodiment, the supply of the first and second conditioning air elements is adjusted so that the flow of air from the first air supply section 120 to the supply path 13 is not obstructed even when the second conditioning air element is mixed. Specifically, for example, the mixer 122 is configured so that the absolute amount of the supply of the first conditioning air element is greater than the absolute amount of the supply of the second conditioning air element. Also, by configuring the diameter of the first air supply section 120 to be larger than the diameter of the second air supply section, the supply of the first conditioning air element is configured to be greater than the supply of the second conditioning air element. Also, by configuring the diameter of the first air supply section 120 to be smaller than the diameter of the second air supply section, the flow velocity of the first conditioning air element is configured to be faster than the flow velocity of the second conditioning air element.

[0039] This prevents the first conditioned air element, which is the basis of the survey air supplied from the air conditioner 12, from being difficult to supply to the area to be air-conditioned. Also, the second conditioned air element supplied to the mixer 122 can be supplied to the supply path 13 together with the first conditioned air element, and the first and second conditioned air elements can be mixed within the supply path 13 as well.

[0040] In addition, by providing the mixing section 122, if either the first air supply section 120 or the ventilation device 16 is activated, air can be sent to the air conditioner 12, thereby preventing condensation and mold growth in the air conditioner 12.

[0041] In another preferred embodiment, the mixing section 122 has a check valve at the connection with the second air supply section 121. This makes it possible to prevent backflow when the ventilation device 16 stops.

[0042] <3. Configuration of supply route 13> The supply path 13 is a so-called duct, and is laid vertically in a pipe space that penetrates from the underfloor space 14 to the upper floor ceiling 15. The supply path 13 has a lower supply path 130 for guiding the conditioned air supplied from the air conditioning unit 12 to the underfloor space 14, and an upper supply path 131 for guiding the conditioned air supplied from the air conditioning unit 12 to the air-conditioned area 11 on the upper floor.

[0043] The lower supply path 130 is connected to an underfloor flow path adjuster 140 and guides the conditioned air supplied from the air conditioner 12 through the underfloor flow path adjuster 140 to the underfloor space 14 .

[0044] Additionally, a flow rate regulator 132 is provided in the lower level supply path 130. The flow rate regulator 132 adjusts the amount of conditioned air supplied to the underfloor space 14 so that the air supplied to the air-conditioned area 11 on the reference floor satisfies a predetermined condition, and increases or decreases the amount of conditioned air supplied to the underfloor space 14 from the total amount of conditioned air supplied from the air conditioner 12. Specifically, the predetermined condition is whether or not the wind pressure of the conditioned air discharged from the floor discharge port 113 exceeds a predetermined threshold value.

[0045] In a preferred embodiment of the present invention, a predetermined threshold value for wind pressure may be set for each location of the floor discharge outlet 113. Specifically, for example, a floor discharge outlet 113 located near the thermal bridge 110 may be set to a higher threshold value for wind pressure than the other floor discharge outlets 113. In this case, the size of the small space created by a partition installed in the underfloor space described below is adjusted based on the threshold value for wind pressure for each floor discharge outlet 113.

[0046] In addition, in a preferred embodiment of the present invention, a wind pressure detector (not shown) is installed at the floor discharge port 113, and the flow rate regulator 132 adjusts the amount of conditioned air supplied to the underfloor space 14 according to the wind pressure acquired by the wind pressure detector.

[0047] The upper floor supply path 131 is connected to a ceiling flow path adjuster 150, and guides conditioned air supplied from the air conditioner 12 via the ceiling flow path adjuster 150 to the air-conditioned area 11 on the upper floor.

[0048] The ceiling flow path adjuster 150 is a so-called chamber box, which is connected to an upper floor outlet 151 via a duct and supplies conditioned air supplied from the air conditioner 12 to the air-conditioned area 11 on the upper floor.

[0049] In this embodiment, the upper floor outlet 151 is provided on the ceiling of the air-conditioned area 11 on the upper floor, but it may also be provided on the floor. In this case, the exhaust outlet 112 provided in the air-conditioned area 11 on the upper floor and the upper floor outlet 151 are positioned on the ceiling of one of the two divided air-conditioned areas 11 or the floor of the other. More preferably, the exhaust outlet 112 and the upper floor outlet 151 are positioned at the farthest position between the two areas.

[0050] <4. Configuration of underfloor space 14> The underfloor space 14 is configured to be airtight so that the conditioned air supplied from the air conditioner 12 is under positive pressure, and is provided with an underfloor flow path adjuster 140 and an underfloor supply path 141. Preferably, the underfloor space 14 is provided with small spaces directly below each floor discharge port 113 using partitions to allow the conditioned air to remain.

[0051] The underfloor flow path adjuster 140 is a so-called chamber box that is connected to the underfloor supply path 141 and supplies conditioned air supplied from the air conditioning unit 12 to the air-conditioned area 11 on the reference floor via the floor discharge port 113.

[0052] The underfloor supply path 141 is a so-called duct, and is laid in the underfloor space 14. Preferably, the underfloor supply path 141 is laid so that its end is located directly below the floor discharge port 113. Specifically, the underfloor supply path 141 is laid so that it connects to a small space provided directly below the floor discharge port 113 using a partition.

[0053] <5. Configuration of Partition Space 18> In the present invention, it is also possible to utilize the space created by the partition wall to supply conditioned air to the air-conditioned area 11. Figure 4 is a schematic diagram of a configuration for supplying conditioned air by utilizing the space created by the partition wall.

[0054] As shown in Fig. 4(a), the present invention comprises a partition space 18, which is a space created by a partition wall, a partition supply path 180, which is a supply path 13 for guiding conditioned air supplied from an air conditioner 12 to the partition space 18, and a partition discharge port 181 for supplying the conditioned air supplied from the air conditioner 12 to the partition space 18 to the air-conditioned area 11. Fig. 4(b) is an example of an enlarged view of the partition discharge port 181.

[0055] The partition supply path 180 is a so-called duct, and is connected to the mixing section 122 of the air conditioner 12 and the partition space 18. Note that the partition supply path 180 may be an inter-floor space.

[0056] The partition outlet 181 is a gap formed in the vicinity of the wall and floor of the air-conditioned area 11. In the present invention, a baseboard with a gap is used as the partition outlet 181. Preferably, a baseboard with a gap at the top is used as the partition outlet 181. This allows the supply direction of the conditioned air supplied from the partition space 18 to be adjusted so as not to interfere with the supply direction of the conditioned air supplied from the underfloor space 14. This also allows an appropriate updraft of the conditioned air to be generated, allowing occupants to live more comfortably. Furthermore, there is no need to create a new outlet in the wall to supply the conditioned air supplied from the partition space 18 to the air-conditioned area 11, which reduces construction costs and allows conditioned air to be supplied without compromising the design of the wall.

[0057] In this embodiment, a baseboard is used as the partition outlet 181, but a molding may also be used. [Explanation of symbols]

[0058] 1. Building 11 Air conditioning target area 110 Heat Bridge 111 Return air port 112 Exhaust port 113 Floor outlet 12 Air conditioner 120 1st air supply section 121 2nd air supply section 122 Mixing section 123 Refrigerant path 13 Supply Channels 130 Lower Supply Route 131 Upper Supply Route 132 Flow regulator 14 Underfloor space 140 Underfloor supply route 141 Floor flow regulator 15 Upper floor ceiling 150 Ceiling flow regulator 151 Upper floor outlet 16 Ventilation equipment 17 Outdoor unit 18 Partition space 180 Partition supply route 181 Partition outlet

Claims

1. An air conditioning device disposed between a reference floor and a floor higher than the reference floor; a lower level supply path that guides the conditioned air supplied from the air conditioning device to the underfloor space of the reference floor; an outlet for supplying the conditioned air that has been airtight in the underfloor space to an area to be air-conditioned; A whole-building air conditioning system.

2. The central air-conditioning system according to claim 1 , further comprising an upper floor supply path for guiding the conditioned air supplied from the air conditioner to the upper floor.

3. The whole-building air conditioning system further includes a ventilation device, The air conditioner comprises a first air supply section that supplies a first conditioned air element that is the source of the conditioned air, a second air supply section that supplies a second conditioned air element that is supplied from the ventilation device, and a mixing section to which the lower supply path is connected and which has a predetermined space for mixing the first conditioned air element and the second conditioned air element, The central air conditioning system according to claim 1 , wherein the mixing unit discharges the conditioned air supplied by the first conditioned air element and the conditioned air supplied by the second conditioned air element to the lower supply path.

4. The mixing unit is configured to arrange the first air supply unit and the second air supply unit so that the direction in which the first conditioning air element is supplied and the direction in which the second conditioning air element is supplied form an angle of at least a certain value, The central air conditioning system according to claim 3, wherein the conditioned air is a mixture of air from the first conditioned air element and air from the second conditioned air element, and the mixture is discharged to the lower supply path.

5. The whole-building air conditioning system of claim 4, wherein the mixing section arranges the first air supply section and the second air supply section so that the angle between the direction of supplying the first conditioning air element and the direction of supplying the second conditioning air element is perpendicular or anti-parallel.

6. the lower supply path has a flow regulator for adjusting the volume of the conditioned air, The whole-building air conditioning system of claim 1, wherein the flow regulator adjusts the volume of the conditioned air supplied from the underfloor space to the air-conditioned area out of the total volume of the conditioned air supplied from the air conditioning device when the conditioned air supplied from the underfloor space to the air-conditioned area satisfies predetermined conditions.

7. The whole-building air conditioning system further includes a ventilation device, The air-conditioning target area has a return air port for guiding return air from the area to the air conditioning device, an exhaust air port for guiding exhaust air from the area to the ventilation device, and the discharge port, The whole-building air conditioning system of claim 1, wherein the exhaust port and / or the return air port are arranged in one of the two regions that are divided into the air-conditioning target area, and the discharge port is arranged in the other of the two regions that are divided into the air-conditioning target area.

8. The whole-building air-conditioning system includes a supply path that supplies the conditioned air to a space within a partition, and a partition outlet that supplies the conditioned air that has become airtight in the space within the partition to the area to be air-conditioned, 2. The central air-conditioning system according to claim 1, wherein the partition outlet is a baseboard or molding having a gap therebetween.

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