JP5847780B2 - Air conditioning system - Google Patents

Description

  The present invention relates to an air conditioning technique having a function of performing air conditioning in a building and purifying air while performing ventilation for 24 hours in the building.

  A typical air conditioning system that cools and heats the interior of a building is one that uses an air conditioner such as a so-called room air conditioner. Conventional air conditioners perform air conditioning by blowing an air flow that has been appropriately temperature-controlled by an outdoor unit from the indoor unit into the building, but this is caused by conditioned air that is blown from the indoor unit, particularly in the hot summer season. Although it can feel cool due to the feeling of airflow, an unpleasant phenomenon called draft may occur in some cases.

  In view of this, a method has been proposed in which a heat medium is circulated and supplied to a radiator disposed in a room, and indoor air conditioning is performed using hot air or cold air radiated from the radiator (see, for example, Patent Document 1). The “air-conditioning system” described in Patent Document 1 includes an air-conditioning panel and a fluid supply device for circulating a high-temperature or low-temperature fluid inside the air-conditioning panel. As the fluid supply device, a pipe, a pump, a fuel boiler, A heat pump is provided.

  On the other hand, as a conventional technique related to the present invention, for example, there is a “house ventilation structure” described in Patent Document 2. The “house ventilation structure” described in Patent Document 2 does not have a cooling / heating function, but includes an air supply device that introduces air sucked from outside into the house, and an air supply duct that is connected at one end to the air supply device. The air supply louver (air supply port) communicated with the other end of the air supply duct, and the air louver (air supply port) is formed at the lower part of the wall surface or the end of the floor surface in the room. is there.

JP 2008-121907 A JP 2006-317058 A

  A conventional air conditioner (room air conditioner, etc.) indoor unit emits a rotating sound of a fan or an air blowing sound during operation, and thus lacks quietness. Moreover, although the air conditioning system only by the heat radiator described in patent document 1 can implement | achieve a comfortable air-conditioned space by a radiation effect, even if it is a no-wind state, it was cleaned into the 24-hour ventilation function and the building Since it does not have a function to introduce outside air, air conditioning and ventilation are insufficient.

  On the other hand, the “house ventilation structure” described in Patent Document 2 can reduce discomfort to residents and the like due to airflow, and can prevent a reduction in ventilation efficiency, but is provided in a low part of the room. Since it is necessary to prevent the air supply louver (air supply opening) from being blocked by furniture or furniture, the arrangement of furniture and furniture in the room is significantly restricted.

  The problem to be solved by the present invention is to prevent the entry of outdoor pollutants into the building while keeping ventilation and radiant air conditioning for 24 hours, and to keep the building in a quiet, comfortable and clean atmosphere at all times. It is possible to provide an air conditioning system that can obtain a more reliable air conditioning action and ventilation action without restricting the arrangement state of furniture and furniture.

The air conditioning system of the present invention is
A radiator disposed in the building to circulate the temperature-controlled heat medium inside and discharge the warm air or cold air from the surface to perform air conditioning,
A heat source device arranged outside the building to adjust the temperature of the heat medium;
A first flow path for circulating the heat medium between the radiator and the heat source unit;
An air supply path and air supply means for introducing outside air into the building;
Cleaning means for purifying outside air introduced by the air supply means;
A heat exchanger for adjusting the temperature of the outside air introduced by the air supply means;
An exhaust path through which air in the building can flow out;
In an air conditioning system comprising a second flow path for circulating the heat medium between the heat exchanger and the heat source machine,
The air supply opening of the air supply path, before Symbol a floor operating region below the door is opening and closing means of the doorway of the deployed room in the building, the floor of the residents moving area within the building It is provided.

  Here, the opening / closing means refers to means for opening / closing a doorway of a room or an entrance / exit of an article storage space, and includes a door or a door that rotates around a hinge, a sliding door that slides along a sill or rail, and the like. . Further, the floor surface facing the operation area of the opening / closing means refers to a floor surface located at a location close to the operation area.

  In a general building, the floor under the operating area of the opening / closing means deployed in the building, the floor facing the operating area of the opening / closing means, or the floor of the occupant movement area in the building is originally Because it is a place where furniture etc. cannot be installed, if an air supply port is provided in such a place, there is no need to hesitate in selecting the installation place of the air supply port, and the arrangement state of furniture and furniture is restricted There is nothing. If an air supply port is provided in such a place, an air flow passes through the building without stagnation when air flows toward the exhaust port of the exhaust path, which is often provided above the wall surface. Therefore, more reliable air conditioning and ventilation can be obtained.

  Here, a ductless space can be formed in an airtight manner inside the wall, floor, and ceiling that form the building, and the ductless space can be used as a ventilation path that forms at least part of the air supply path.

  With such a configuration, the outside air introduced into the building via the air supply path can be supplied to each room using the ductless space as a ventilation path. It is no longer necessary to construct a duct for introduction, and materials can be reduced and construction can be facilitated.

  Further, a ductless space can be formed in an airtight manner between the first floor ceiling and the second floor of the building, and the ductless space can be used as the ventilation path.

  With such a configuration, the outside air introduced into the building via the air supply path using the ductless space formed between the first floor ceiling and the second floor of the building as a ventilation path. Can be supplied into the building. Therefore, by installing an air supply port in a room located below or above the ventilation path, a flow path from the air supply means to the air supply port via the supply path and the ventilation path is provided. It is formed and duct construction becomes unnecessary.

  In addition, since the outside air whose temperature is adjusted by a heat exchanger flows through the ductless space used as the ventilation path, a radiation action occurs in the room through the ceiling surface and the floor surface in contact with the ductless space. The air conditioning effect is improved.

  In addition, an air supply port communicating with the ventilation path can be provided in the first floor ceiling portion in the building.

  With such a configuration, the first floor ceiling part is in contact with the ventilation path (ductless space), so if an air supply port is provided in this place, the air supply port and the ventilation path communicate with each other. The construction can be simplified. In addition, the said air supply opening can be formed by installing a ventilation member in the opening part provided in the 1st floor ceiling part.

  Furthermore, the ductless space can be formed by providing a foam heat insulating structure on the wall portion, the floor portion, and the ceiling portion.

  With such a configuration, the ductless space can be provided with both heat insulation and airtightness, so that temperature loss of the outside air introduced into the ductless space in a temperature-controlled state (dissipation of cold air and warm air) ), And is effective in improving the air conditioning effect.

  According to the present invention, while performing 24-hour ventilation and radiant air-conditioning, it is possible to prevent the entry of outdoor pollutants into the building and keep the building in a quiet, comfortable and clean atmosphere. Thus, it is possible to provide an air-conditioning system that can obtain more reliable air-conditioning action and ventilation action without restricting the arrangement state.

It is a figure which shows the structure of the air conditioning system which is 1st Embodiment of this invention. FIG. 2 is a partially omitted perspective view of a region indicated by an arrow A in FIG. 1. It is a figure which shows the structure of the air conditioning system which is 2nd Embodiment of this invention. It is a figure which shows a part of air conditioning system which is other embodiment. It is a figure which shows a part of air-conditioning system using a foam heat insulation structure.

  Hereinafter, the air conditioning systems 100 and 200 according to embodiments of the present invention will be described with reference to FIGS.

  As shown in FIG. 1, an air conditioning system 100 according to a first embodiment of the present invention includes a plurality of buildings 10 in a building 10 for performing air conditioning by circulating a temperature-controlled heat medium and releasing warm air or cold air from the surface. Radiation type radiators 11 arranged in the rooms 1, 2, 3 and 4, respectively, a heat source machine (heat pump) 12 arranged outside the building 10 for adjusting the temperature of the heat medium, and a radiator 11 The first distribution path 13 for circulating the heat medium between the air source 12 and the heat source unit 12, the air supply path 14 for supplying outside air into the building 10 and maintaining the atmospheric pressure in the building 10 at a positive pressure, and the air supply Means (fan) 15, cleaning means (filter) 16 for purifying the outside air introduced by the air supply means 15, heat exchanger 17 for adjusting the temperature of the outside air introduced by the air supply means 15, and the building 10 Exhaust air from which the air in each room 1, 2, 3, 4 can flow out A road 5, 6, 7, 8, and a second flow path 18 for circulating the heating medium between the heat exchanger 17 and the heat source apparatus 12.

  The size (performance) of the air supply means 15 is not limited, but according to the building 10, the size (performance) that can satisfy the necessary ventilation (0.5 times / h) defined in the Building Standard Law. Can be selected.

  The air supply path 14 is a room on the second floor side through a ventilation path 19 formed between the first floor ceiling part C1 and the second floor part F2 from the opening 10 opened in the outer wall part 10a of the room 2. The three and four air supply ports 21 communicate with each other. In the present embodiment, an airtight heat insulating ductless space is formed between the first-floor ceiling C1 and the second-floor floor F2, and this ductless space is used as the ventilation path 19. In addition, the air supply port 21 and the air supply path 14 of the rooms 1 and 2 on the first floor are communicated with each other via, for example, an underfloor space 20 and a wall space (not shown). Can also be connected to the underfloor space 20.

  Exhaust paths 5, 6, 7, and 8 are established in the outer wall portion 10a of each of the rooms 1, 2, 3, and 4. Each of the exhaust paths 5, 6, 7 and 8 is provided with a differential pressure adjusting means 9 having a backflow preventing function and a function of opening at a predetermined pressure difference. A rain-proof hood 10c is provided outside each of the exhaust paths 5, 6, 7, and 8.

  The radiator 11 can be made of metal, ceramics or synthetic resin, but from the viewpoint of durability such as corrosion resistance, the radiator 11 is made of synthetic resin. Specifically, a heat radiator or the like in which a fence-like panel formed of PPR (polypropylene random copolymer resin) has a two-sided front and rear structure is suitable. Moreover, in this embodiment, although water is used as a heat medium which circulates between the heat source machine 12 and the heat radiator 11 via the 1st distribution path 13, it is not limited to this.

  As shown in FIG. 1, an air supply port 21 of the air supply path 14 is provided on each of the floors 1 f, 2 f, 3 f, 4 f of the rooms 1, 2, 3, 4. As shown in FIG. 2, the air inlet 21 in the room 1 is provided on the floor surface 1 f at a portion located below the operation area 1 d of the door 1 b that is an opening / closing means for the doorway 1 a of the room 1. Similarly, the air inlets 21 of the other rooms 2, 3 and 4 operate on the floors 2f, 3f and 4f in the rooms 2, 3 and 4 and the doors 2b, 3b and 4b of the entrances 2a, 3a and 4a. It is provided in a portion located below a region (not shown). The floors 2f, 3f, 4f in the rooms 1, 2, 3, 4 are located below the operation areas (not shown) of the doors 2b, 3b, 4b of the entrances 1a, 2a, 3a, 4a. The part corresponds to the floor of the resident movement area.

  When the heat source unit 12 and the air supply unit 15 are operated in the air conditioning system 100 shown in FIG. 1, the heat medium whose temperature is adjusted in the heat source unit 12 passes through the first distribution path 13 to each of the rooms 1, 2, 3, 3. 4 circulates between the heat sink 11 and the heat exchanger 17 via the second flow path 18. In parallel with this, the outside air sucked from the outside of the building 10 through the cleaning means 16 is supplied by the air supply means 15 via the heat exchanger 17, the air supply path 14, the opening 10b, and the like. It flows into the rooms 1, 2, 3, and 4 from the mouth 21. At this time, the blowing capacity of the air supply means 15 and the opening degree of the exhaust paths 5, 6, 7, and 8 are set so that the atmospheric pressure in the building 10 can maintain a positive pressure, and the heat source machine 12 and the air supply Any of the means 15 can be operated continuously (so-called 24-hour operation). Therefore, the air conditioning system 100 exhibits a 24-hour ventilation function of the second type ventilation system.

  In the air conditioning system 100, the heat medium whose temperature is adjusted by the heat source device 12 according to the season (air temperature) is arranged in each room 1, 2, 3, 4 in the building 10 via the first distribution path 13. By circulating through the radiator 11, radiant air conditioning that heats or cools the interiors of the respective rooms 1, 2, 3, 4 at an appropriate temperature by warm air or cold air discharged from each radiator 11 is performed. It can be carried out. Further, in the air conditioning system 100, since it is not necessary to provide an electric blower fan or the like in the building 10, the inside of the building 10 can be kept quiet even when the air conditioning system 100 is operating.

  The outside air introduced by the air supply means 15 is purified by the cleaning means 16, adjusted to an appropriate temperature by the heat exchanger 17, and the wind pressure (air volume) that can maintain the atmospheric pressure in the building 10 at a positive pressure. Is supplied into the building 10. That is, the outside air introduced into the building 10 by the air supply means 15 flows into the rooms 1, 2, 3 and 4 via the air supply path 14 and diffuses as indicated by the arrow in FIG. Thereafter, a part of each is discharged to the outdoors from the exhaust passages 5, 6, 7, and 8.

  Therefore, the 24-hour ventilation of the second type ventilation system that can keep the inside of the building 10 in a comfortable and clean atmosphere while preventing outdoor pollutants from entering the building 10 with the outside air. can do. Further, in the intermediate period when heating and cooling are not required, the operation of the heat source unit 12 is stopped and the functions of the radiator 11 and the heat exchanger 17 are stopped, while the air supply means 15 is continuously operated, thereby Two-hour ventilation can be performed for 24 hours. As the cleaning means 16, a filter having a function of capturing dust in the air is suitable, but an air washer or the like can also be used.

  In addition, although the 2nd type ventilation system is employ | adopted in the air conditioning system 100, it is not limited to this, For example, a 1st type ventilation system can also be employ | adopted. The first type ventilation method is a ventilation method in which both air supply and exhaust are performed using mechanical air supply means such as an electric fan. Therefore, if the air supply / exhaust amount is set so that the air supply amount> the exhaust amount, The same effects as those of the second type ventilation method described above can be obtained.

  On the other hand, as shown in FIG. 2, the floor surface 1f located below the operation area 1d of the door 1b, which is an opening / closing means for the entrance / exit 1a of the room 1, is originally a floor surface of the occupant movement area. Since it is a place where furniture or the like cannot be installed, if the air supply port 21 is provided in such a place, there is no need to hesitate to select the installation location of the air supply port, and the arrangement state of furniture and furniture etc. Is not constrained. The air supply port 21 can be formed by installing a ventilation member 21y (for example, a grill or the like) in the opening 21x opened in the floor surface 1f, but is not limited thereto.

  Since the region where the air supply port 21 is provided is a place where people, pets, and the like pass, the structure is strong enough to prevent damage when a load is applied to the air supply port 21, and the air supply port In order to prevent crawling at 21 or catching a foot on the air supply port 21, the air supply port 21 and the surrounding floor surface 1 f are substantially flush with each other (the air supply port 21 and the surrounding floor surface 1 f It is desirable to have a structure in which no step is generated between

  Further, if the air supply port 21 is provided in a place as shown in FIG. 2, the air is swallowed in the room 1 when air flows toward the exhaust port of the exhaust path 5, which is often provided above the wall surface. Since the air flow passes therethrough, more reliable air conditioning and ventilation can be obtained. Furthermore, if the air supply port 21 has directivity, the air flow blown out from the air supply port 21 can make a round of the room, which is effective in improving the air conditioning function and the ventilation function.

  Further, the ductless space formed between the first-floor ceiling portion C1 and the second-floor floor portion F2 of the building 10 is used as an air-tight heat-insulating air passage 19 that forms a part of the air-supply passage 14. Since the external airflow introduced into the rooms 3 and 4 from the mouth 21 can be ensured, a reliable ventilation effect can be obtained. Moreover, since the ventilation path 19 functions as an air supply path, it is not necessary to install a duct connected to the air supply port 21, and it is possible to reduce materials and facilitate the installation. Further, since the radiation action is generated through the first floor ceiling C1 and the second floor F2 facing the ventilation path 19, it is effective in improving the air conditioning effect.

  In the air conditioning system 100 shown in FIG. 1, if a path opening / closing means (not shown) is provided in at least one of the first distribution path 13 and the second distribution path 18, the path opening / closing means is opened / closed according to an air conditioning load or the like. This makes it possible to operate only one of the radiator 11 connected to the first flow path 13 and the heat exchanger 17 connected to the second flow path 18, which is effective in improving the air conditioning efficiency. is there.

  For example, when it is desired to take outside air as it is while performing radiation air conditioning with the radiator 11 (for example, when only radiation air conditioning is desired), the path provided in the middle of the second distribution path 18 connected to the heat exchanger 17. This can be realized by closing the opening / closing means (not shown) and stopping the circulation of the heat medium to the heat exchanger 17. Moreover, if the path opening / closing means (not shown) provided in the first circulation path 13 is closed and the circulation of the heat medium to the radiator 11 is stopped, the operation only for adjusting the temperature of the outside air is possible.

  Further, by using the heat source unit 12 that is the heat source of the radiator 11 as the heat source of the heat exchanger 17, it is not necessary to separately provide a heat source for adjusting the temperature of the outside air introduced into the building 10. Simplification and reduction of installation space can be achieved.

  Furthermore, since the outside air is heat-exchanged by the heat exchanger 17 and introduced into the building 10, particularly in summer, the outside air that has been dehumidified and cooled can be introduced by cooling the high-temperature and high-humidity outside air. It can be in a comfortable state. Note that condensation may occur on the surface of the radiator 11 particularly in summer. However, if the outside air introduced into the building 10 is dehumidified and cooled in advance, the condensation generated on the surface of the radiator 11 can be reduced.

  On the other hand, since the differential pressure adjusting means 9 having a backflow prevention function is provided in each of the exhaust paths 5, 6, 7, and 8, a predetermined pressure difference is set between the pressure inside the building 10 and the pressure outside the building. It is possible to maintain a stable positive pressure in the building 10 at all times. In this case, it is desirable to set the pressure difference between the pressure inside the building 10 and the pressure outside the building to about 5 Pa to 10 Pa. Further, when the atmospheric pressure in the building 10 fluctuates due to an opening / closing operation of a door (not shown) provided in the building 10, the backflow prevention function of the differential pressure adjusting means 9 operates following this, so Intrusion of outside air from the paths 5, 6, 7, and 8 can be prevented.

  In addition, the air pressure inside the building 10 can be increased or decreased by increasing or decreasing the amount of air discharged from the exhaust paths 5, 6, 7 and 8 by the differential pressure adjusting means 9, so that the air pressure outside the building has changed. Even in this case, it is possible to set the contaminant intrusion prevention function to an appropriate state. Furthermore, since the differential pressure adjusting means 9 also has a backflow preventing means, when the positive pressure in the building 10 cannot be maintained due to a failure or stop of the air supply means 15, or due to strong winds, etc., the exhaust paths 5, 6, Even when a situation occurs in which outside air blows in toward 7, 8, it is possible to prevent the outside air containing contaminants from entering the building 10.

  The differential pressure adjusting means 9 having a backflow preventing function is not particularly limited, and those having a function of maintaining an open state at a predetermined pressure or higher and closing at a predetermined pressure or lower can be used. The differential pressure adjusting means 9 having a backflow prevention function is a differential pressure opening / closing means having a mechanism in which a weight or the like is attached to a blade that opens and closes due to a pressure difference, opens when a pressure difference exceeds a certain level, and closes with its own weight when the pressure difference disappears. Etc. can be used suitably. The set pressure may be set arbitrarily according to the number of attached weights. In this case, if the number of weights increases, the pressure at the time of opening increases, and the differential pressure with the outside air can be increased. If the number of weights decreases, the opening pressure decreases and the pressure difference with the outside air can be reduced. .

  In addition, it is also possible to provide an exhaust fan (not shown) in the exhaust paths 5, 6, 7, and 8 to perform 24-hour ventilation of the first type ventilation system. Also in this case, if the amount of air supplied from the opening 10b is set to be larger than the amount of exhaust from the exhaust paths 5, 6, 7 and 8, systematic ventilation is realized by the first type ventilation method. However, the inside of the building 10 can always be kept at a positive pressure. In addition, when the pressure difference set between the pressure inside the building 10 and the pressure outside the building is changed, it can be dealt with by changing the rotation speed of the exhaust fan.

  In the present embodiment, the building 10 has a high airtightness / high heat insulation structure, but is not limited to this, and therefore the air conditioning system of the present invention can be constructed even in a medium airtight / medium heat insulation structure, etc. Even in a modern building, the interior can always be kept quiet, comfortable and clean.

  Next, the air conditioning system 200 which is 2nd Embodiment of this invention is demonstrated based on FIG. In the air conditioning system 200 shown in FIG. 3, parts having the same structure and function as the constituent parts of the air conditioning system 100 shown in FIG. 1 are denoted by the same reference numerals as those in FIG.

  In the air conditioning system 200 shown in FIG. 3, the ventilation path 19 communicates with the air supply path 14, and an airtight and heat insulating ductless space is formed between the first-floor ceiling C <b> 1 and the second-floor floor F <b> 2 of the building 10. And this ductless space is made into the ventilation path 19, and the air inlet 21a of the rooms 1 and 2 on the first floor side is provided in the ceiling surfaces 1c and 2c of the rooms 1 and 2.

  Since the ceiling surfaces 1c and 2c of the rooms 1 and 2 on the first floor are in contact with the ventilation path 19 (ductless space), if the air supply opening 21a is provided at these places, the air supply opening 21a and the ventilation path 19 are provided. Since it communicates with the shortest distance, construction can be simplified. Further, since only the space between the first-floor ceiling portion C1 and the second-floor floor portion F2 is used as the ductless space, processing for constructing the ductless space, such as airtight heat insulation processing, can be minimized. The structure and functions of other parts are the same as those of the air conditioning system 100 shown in FIG.

  Next, in the air conditioning system 300 shown in FIG. 4, as in the case of the air conditioning systems 100 and 200 according to the first and second embodiments, an airtight heat insulating shape is provided between the second floor portion F2 and the first floor ceiling portion C1. A ductless space is formed, and this ductless space is used as a ventilation path 39. In this case, an air supply means (not shown) installed outdoors and the ventilation path 39 are appropriately connected by a duct 38 or the like that has been subjected to heat insulation.

  FIG. 4 shows the operating state in winter, and fresh outside air is a fan coil unit that is an air supply means installed outdoors (for example, equipment in which the air supply means 15 and the heat exchanger 17 shown in FIG. 1 are integrated). The air is supplied to the ductless space 39 and supplied into the room 4 from the air supply port 21 provided on the floor surface 4f of the room 4 on the second floor side and in front of the door 4b. In this case, in addition to air supply from the air supply port 21 and heating by a radiator (not shown), a radiation effect from the floor surface 4f is also produced, so that an excellent heating effect can be obtained.

  Next, in the air conditioning system 400 shown in FIG. 5, the ductless space formed between the second floor portion F2 and the first floor ceiling portion C1 is used as the ventilation path 49, and the ductless space is airtight and heat insulating. A foam insulation structure is adopted as a means for providing the heat resistance. The foam heat insulating structure is formed by blowing a foam heat insulating material 41 obtained by foaming a synthetic resin heat insulating material to the inside of the building 40. Specifically, after the second-floor floor portion F2 is constructed, the foam insulation material 41 is sprayed, and then the first-floor ceiling portion C1 can be constructed to form a foam insulation structure, but this is limited to this. is not.

  Since the foam heat insulating material 41 is reliably filled in the gaps in the building 40, the airtightness of the building 10 can be improved while ensuring the heat insulating function. Further, by making the ductless space 49 formed between the second-floor floor portion F2 and the first-floor ceiling portion C1 part of the air supply path, heat loss of fresh outdoor air supplied to the room is minimized. Can be suppressed.

  If air conditioned air is circulated inside the walls, ceilings, and floors of the building, the building's housing (structure) will be more ventilated and condensation will not easily occur. In addition to extending the service life, the ductless space is also air-conditioned, eliminating the temperature difference between the ductless space and the room, and the walls, ceiling, floor, and other surfaces of the room close to room temperature. This eliminates the need for comfortable air conditioning.

  In addition, embodiment described based on FIGS. 1-5 illustrates the air conditioning system which concerns on this invention, and the air conditioning system of this invention is not limited to embodiment mentioned above.

  The air conditioning system of the present invention can be widely used in the field of construction and construction industries as air conditioning means in various buildings such as detached houses and apartment houses.

100, 200, 300, 400 Air conditioning system 1, 2, 3, 4 Room 5, 6, 7, 8 Exhaust path 9 Differential pressure adjusting means 10 Building 10a Outer wall 10b, 21x Opening 10c Hood 10d Roof 11 Radiator 12 Heat source Machine 13 First flow path 14 Air supply path 15 Air supply means 16 Cleaning means 17 Heat exchanger 18 Second flow path 19, 39, 49 Ventilation path 20 Underfloor space 21, 21a Air supply port 21y Ventilation member

Claims (5)

A radiator disposed in the building to circulate the temperature-controlled heat medium inside and discharge the warm air or cold air from the surface to perform air conditioning,
A heat source device arranged outside the building to adjust the temperature of the heat medium;
A first flow path for circulating the heat medium between the radiator and the heat source unit;
An air supply path and air supply means for introducing outside air into the building;
Cleaning means for purifying outside air introduced by the air supply means;
A heat exchanger for adjusting the temperature of the outside air introduced by the air supply means;
An exhaust path through which air in the building can flow out;
In an air conditioning system comprising a second flow path for circulating the heat medium between the heat exchanger and the heat source machine,
The air supply opening of the air supply path, before Symbol a floor operating region below the door is opening and closing means of the doorway of the deployed room in the building, the floor of the residents moving area within the building An air conditioning system characterized by being provided.   The air conditioning system according to claim 1, wherein a ductless space is formed in an airtight manner inside the wall, floor, and ceiling of the building, and the ductless space is used as a ventilation path that forms at least a part of the air supply path.   The air conditioning system according to claim 2, wherein a ductless space is formed in an airtight manner between the first floor ceiling and the second floor of the building, and the ductless space is used as the ventilation path.   The air conditioning system according to claim 3, wherein an air supply port communicating with the ventilation path is provided in a first floor ceiling portion in the building.   The air conditioning system according to any one of claims 2 to 4, wherein the ductless space is formed by providing a foam heat insulating structure inside the wall portion, the floor portion, and the ceiling portion.

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