KR101363941B1 - Stand type dehumidified cooling system with ventilation for apartment building district cooling - Google Patents

Abstract

The present invention relates to a stand type system for dehumidification, cooling, and ventilation for locally cooling an apartment house. The present invention pleasantly cools an enclosed space without a decline in the quality of indoor air; purifies indoor air using a ventilation operation except for in summer; and provides a high efficient ventilation function using waste heat recovery with the heat exchange of a dehumidification rotor inside a dehumidification cooling device by running the dehumidification cooling device, a damper, and a ventilation duct for cooling and ventilation operations for each room. [Reference numerals] (214) Indirect evaporative cooler; (215) Evaporator; (216) Condenser; (219) Dehumidification rotor; (280) Controller; (AA,GG) Exhaust; (BB,EE) Indoor air; (CC,DD) Outdoor air; (FF) Local heating water (hot water)

Description

STAND TYPE DEHUMIDIFIED COOLING SYSTEM WITH VENTILATION FOR APARTMENT BUILDING DISTRICT COOLING}

The present invention relates to a stand-type dehumidification cooling system for both ventilation and air conditioning in an apartment house, and in detail, by using a dehumidifying air conditioner, a damper, and a ventilation duct, the cooling operation and the ventilation operation of each room are sealed. While cooling in space, it is possible to enable comfortable cooling without deteriorating indoor air quality, and it is possible to purify the air in each room only by ventilating operation except in summer, and high efficiency through waste heat recovery by utilizing heat exchanger of dehumidification rotor inside dehumidification air conditioner. The present invention relates to a combined ventilation stand-type dehumidification cooling system for district air-conditioning that can provide a ventilation function.

Generally, district heating system differs from individual heating system in which the user who supplies the collective energy supplies the collective energy through piping for heating and hot water supply to a large number of individual users.

In other words, district heating does not have individual heating facilities such as houses, commercial buildings, offices, schools, hospitals, factories, etc. in a single city or a certain area, and a large-scale heat production facility, that is, a cogeneration power plant, (80 ~ 120 ℃), which is needed to supply electricity to the customers through the heat transfer pipe.

On the other hand, dehumidification cooling system using hot water of district heating was developed.

1, the dehumidification cooling system includes a heat source 1, a heat exchanger 3, a circulation pump 5, a heat pipe 7, a user heat exchanger 9 and a dehumidification cooling device 100).

First, the heat source 1 produces hot water of 60 to 120 ° C. Here, the heat source (1) is any one of a cogeneration power plant, a heat-only boiler, a micro turbine, a small gas engine, and a small gas turbine so that hot water of a large-scale district heating or a small district heating can be used. Here, it is preferable that the heat source 1 is provided with a heat storage tank for storing hot water.

The heat exchanger (3) exchanges hot water produced from the heat source (1) with heat.

Further, the circulation pump 5 circulates hot water heat-exchanged in the heat exchanger 3.

In addition, the heat pipe 7 is connected to the circulation pump 5 to transport and recover the hot water to the region A to be heated.

On the other hand, the user heat exchanger 9 is installed in a management room or the like of the region A for heat supply and is connected to the heat pipe 5 to transmit the hot water of the heat pipe 5 to the heat supply region A.

The dehumidifying cooling device 100 is connected to the hot water pipe P connected to the user heat exchanger 9 and is installed in each household of the heat supply area A and is connected to the hot water pipe P1 The hot water supplied is used to remove the moisture in the air to treat the latent heat load, and the water is evaporated in the dehumidified air to cool the air by lowering the air temperature. Here, the dehumidifying cooling apparatus 100 performs cooling by using a regenerative evaporative cooler (REC), in which a part of the air passing through the dry channel is repeatedly regenerated by the dry channel and the wet channel, Channel, the water is evaporated from the wet channel surface to cool, and the air passing through the dry channel is cooled to a maximum dew point temperature without increasing humidity by absorbing heat from the air of the relatively hot dry channel .

On the other hand, the dehumidification cooling apparatus is filed and published by the present applicant in Korean Patent Registration No. 10-0773434 (dehumidification cooling apparatus for district heating).

As shown in FIG. 2, the district heating dehumidifying and cooling device 100 includes a case 110, a first filter 120, a sensible heat exchanger 130, a heating coil 140, and a dehumidification wheel 150. ), An exhaust blower 160, a second filter 170, an air supply blower 180, a regenerative evaporative cooler 190, and a direct evaporative cooler 10.

First, the case 110 is formed in the shape of a rectangular metal enclosure, and a partition wall 119 is provided to partition the wet channel 111 and the dry channel 115, and the outside air is exhausted to one end of the wet channel 111 An outside air intake port 113 is formed at the other end of the wetting channel 111 to suck outside air and an air conditioned space CS is circulated at one end of the dry channel 115 A circulation air intake port 116 is formed so that the air is sucked and a supply mechanism 117 is formed at the other end of the dry channel 115 to supply cooling air in the air conditioning space CS. Here, the dry channel 115 of the case 110 is further provided with a cooler exhaust port 118 for exhausting hot air generated during the secondary cooling in the regenerative evaporative cooler 190 to be described later. Here, the circulating air sucked into the circulating air intake port 116 is mixed at a ratio of 70%: 30% so that the inside of the case 110 is kept at atmospheric pressure.

The first filter 120 removes foreign substances and odors contained in the intake air that is installed between the outside air intake port 113 and the sensible heat exchanger 130 in the wet channel 111 of the case 110. Here, the first filter 120 is an antibacterial filter and is preferably installed in the case 110 so as to be easily replaced.

The sensible heat exchanger 130 is formed in a disk shape so as to rotate in the wet channel 111 and the dry channel 115 of the case 110 by a rotation shaft 131 installed in the same direction as the partition wall 119, Exchanges heat between the outside air flowing into the wetting channel (111) and the circulating air flowing into the dry channel (115) through the intake port (113). Here, the sensible heat exchanger 130 is a disk type in which a thin plate of aluminum or the like is formed in a honeycomb shape so as to perform primary heat exchange in order to lower the temperature of the dehumidified circulating air while passing through the dehumidifying wheel 150 to be described later, A separate motor and belt (not shown) for rotating the sensible heat exchanger 130 are provided.

The heating coil 140 is installed between the rear end of the sensible heat exchanger 130 and the exhaust port 112 in the wetting channel 111 of the case 110, To a high temperature. Here, the hot water supplied to the heating coil 140 is hot water generated from any one of a cogeneration power plant, a heat exclusive boiler, a micro turbine, a small gas engine, a small gas turbine, a gas boiler and an oil boiler, 60 to 120 ° C.

The dehumidifying wheel 150 is formed in a disk shape so as to be rotated in the wet channel 111 and the dry channel 115 of the case 110 by a rotating shaft 151 installed in the same direction as the partition wall 119, And is disposed at the rear end of the coil 140 to adsorb and dehumidify the moisture of the circulating air in the dry channel 115 and regenerate the moisture adsorbed by the high temperature outside air of the wet channel 111 by evaporation. The dehumidifying wheel 150 is in the form of a honeycomb disk in which an adsorbent such as silica gel or zeolite is supported to adsorb moisture in the circulating air by a dry adsorption method, 150 and a belt (not shown).

The exhaust blower 160 is installed between the dehumidifying wheel 150 and the exhaust port 112 of the wetting channel 111 of the case 110 to forcibly exhaust the outside air in the wetting channel 111 to the exhaust port 112.

The second filter 170 is installed between the circulating air inlet port 116 and the dehumidifying wheel 150 in the key channel 115 of the case 110 to remove foreign substances and odors contained in the circulating air. Here, the second filter 170 is an antibacterial filter, and is preferably installed in the case 110 so as to be easily replaced.

The air supply blower 180 is installed between the dehumidifying wheel 150 and the sensible heat exchanger 130 in the case 110 of the case 110 to circulate the circulating air in the dry channel 115 to the circulating air supply mechanism 117, .

The regenerative evaporative cooler 190 is disposed between the circulating air supply mechanism 117 and the sensible heat exchanger 130 in the dry channel 115 and is dehumidified by the dehumidification wheel 150 to be hot and dry, Exchanged air by the exchanger 130 to cool the circulated air of the cooled dry channel 115 to supply cooled circulated air to the air supply mechanism 117 of the case 110, (118). Here, the amount of hot air exhausted to the cooler exhaust port 118 is 30% of the circulated air. Here again, the recuperative evaporative cooler 190 is constructed such that a portion of the air that has passed through the dry channel in an iterative structure of separate dry and wet channels is configured to pass through the wet channel, Because it is evaporated and cooled, it absorbs heat from the air of the relatively hot, dry channel, so the air passing through the dry channel cools to the maximum dew point temperature without increasing humidity.

The direct evaporative cooler 10 is installed in the upstream side of the regenerative evaporative cooler 190 in the dry channel 115 of the case 110 so as to circulate the circulated air supplied from the regenerative evaporative cooler 190 to 2 Cooled to cool the air in the air conditioning space CS through the air supply mechanism 117 of the case 110.

However, such a conventional dehumidifying air conditioner has a problem in that it cannot be installed in a stand type, and although some air is introduced during dehumidification cooling, ventilation operation is impossible.

In addition, domestic new apartment buildings are mandatory for ventilation, so the ventilation system is usually installed in the evacuation space or balcony (vehicle) ceiling to allow independent control through air conditioners such as electric air conditioners and separate regulators. This is mostly.

Therefore, in order to use an electric air conditioner or other type of air conditioner, an additional air conditioner must be installed separately from the ventilation device. Also, since the indoor unit and the outdoor unit must be installed separately, there is a problem that the installation is troublesome and the installation space is occupied by the complexity of the refrigerant pipe, the drain pipe, and the electric wire.

Korean Patent Registration No. 10-0773434

The present invention is to solve the above problems, by using the dehumidification cooling device, the damper and the ventilation duct to perform both the cooling operation and the ventilation operation of each room without deterioration of the indoor air quality even during cooling in an enclosed space. It is possible to enable comfortable cooling, and it is possible to purify the air in each room only by ventilating operation except summer season, and to provide high efficiency ventilation function through waste heat recovery by utilizing heat exchange of dehumidification rotor inside dehumidification air conditioner. It is an object of the present invention to provide a stand-alone dehumidification cooling system for both district cooling.

In addition, the present invention can minimize the installation space through the integrated air-conditioning integrated cooling to maximize the indoor space and to reduce the installation cost by simplifying the installation of the combined-use stand-type dehumidification cooling for district cooling There is another purpose in providing the system.

According to an aspect of the present invention,

A vertical bulkhead is partitioned into a dry channel and a wet channel in a vertically upright enclosure, and an air blower, an indirect evaporative cooler and an evaporator are installed in the dry channel, and a condenser and a heating coil are provided in the wet channel. , An exhaust blower is installed, and a dehumidification rotor is installed at a lower end of the vertical bulkhead, and an inlet, a supply port, a cooler exhaust port, a first outside air inlet, and a ventilation supply port are formed on the gun channel side of the enclosure, respectively. And a dehumidifying air conditioner having an exhaust port and a second outside air intake port respectively formed at the wet channel side of the enclosure; A ventilation duct installed inside a ceiling of a common house and connected to a ventilation supply port of the dehumidifying air conditioner to perform ventilation through an air supply diffuser to each room; A first damper installed at an inlet of the dehumidifying air conditioner to open and close the inlet; A second damper installed in a duct connected to an exhaust port of the cooler of the dehumidifying air conditioner to open and close the exhaust port of the cooler; A third damper installed in a duct connected to a second outside air intake port of the dehumidifying air conditioner to open and close the second outside air intake port; A fourth damper provided in an intake duct branched from a duct associated with a second outside air intake port of the dehumidifying air conditioner to intake indoor air, and inhaling or blocking indoor air to the second outside air intake port; A fifth damper installed in the ventilation duct to open and close the ventilation supply port of the dehumidifying and cooling device; And a controller configured to perform the cooling operation or the ventilation operation by controlling the first to fifth dampers according to the operation mode set by the user.

Herein, the controller opens the first to third dampers and the fifth damper during the cooling operation, closes the fourth damper, and introduces indoor air and outside air into the enclosure through the inlet and the first outside air inlet, respectively. The air is cooled in the dry channel to be discharged through the air supply port, and the air evaporated and cooled in the indirect evaporative cooler is discharged to the exhaust port for the cooler, and outside air flows through the second external air intake port to pass through the wet channel. After discharged through the exhaust port.

Here, the controller closes the first to third dampers during the ventilation operation, opens the fourth damper and the fifth damper to introduce outside air into the enclosure through the first outside air intake port, and the air supply port and The air is discharged through a ventilation supply port, and indoor air is sucked through the intake duct in the second outside air intake port and passed through the wet channel to be discharged through the exhaust port.

Here, the controller is heat-exchanged with the indoor air sucked into the wet channel by the dehumidification rotor while passing through the dry channel, the outside air during the ventilation operation.

Herein, when the controller selects 'strong' cooling according to the user's operation mode selection, the controller temporarily closes the fifth damper to supply all the air of the gun channel to the room through the air supply port.

According to the present inventors configured as a stand alone dehumidification cooling system for local cooling of the apartment house configured as described above, by using the dehumidification air conditioner, a damper and a ventilation duct to perform both the cooling operation and the ventilation operation of each room is sealed While cooling in space, it is possible to enable comfortable cooling without deteriorating indoor air quality, and it is possible to purify the air in each room only by ventilating operation except in summer, and high efficiency through waste heat recovery by utilizing heat exchanger of dehumidification rotor inside dehumidification air conditioner. It can provide ventilation function.

Further, according to the present invention, since the installation space can be minimized through the integrated cooling combined with the ventilation, the indoor space can be utilized to the maximum and the installation cost can be reduced due to the simplified installation.

1 is a schematic view schematically showing a dehumidification cooling system using hot water of general district heating.
2 is a view showing the structure of a conventional dehumidifying cooling apparatus for district heating.
Figure 3 is a block diagram schematically showing the configuration of a combined ventilation stand-type dehumidification cooling system for district air-conditioning in accordance with the present invention.
4 and 5 are explanatory diagrams for explaining the operation of the combined ventilation stand-type dehumidification cooling system for district air-conditioning in accordance with the present invention.

Hereinafter, with reference to the accompanying drawings, the configuration of the air-conditioning combined use stand-type dehumidification cooling system for district cooling according to the present invention in detail as follows.

In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The following terms are defined in consideration of the functions of the present invention, and may be changed according to the intentions or customs of the user, the operator, and the like. Therefore, the definition should be based on the contents throughout this specification.

Figure 3 is a block diagram schematically showing the configuration of a combined ventilation stand-type dehumidification cooling system for district air-conditioning in accordance with the present invention.

Referring to FIG. 3, the stand-type dehumidification cooling system 200 for combined ventilation according to the present invention includes a dehumidifying air conditioner 210, a ventilation duct 220, a first damper 230, The second damper 240, the third damper 250, the fourth damper 260, the fifth damper 270, and the controller 280 are configured.

First, the dehumidifying air conditioner 210 is divided into a dry channel CH1 and a wet channel CH2 by a vertical partition 212 in a housing 211 that can be vertically upright, and has a lower end on the dry channel CH1. The air supply blower 213, the indirect evaporative cooler 214, and the evaporator 215 are sequentially installed in the upper part from the top, the condenser 216 and the heating coil 217 sequentially from the top to the bottom in the wet channel CH2. ), An exhaust blower 218 is installed, a dehumidification rotor 219 is installed at a lower end of the vertical bulkhead 212, and an inlet port A1 formed on the gun channel CH1 side of the enclosure 211, and an air supply port. (A2), a cooler exhaust port A3, a first external air intake port A4, and a ventilation supply port A5 are respectively formed, and an exhaust port A6 on the wet channel CH2 side of the enclosure 211, Second outside air intake ports A7 are formed, respectively.

In addition, the ventilation duct 220 is installed inside the ceiling of the common house, connected to the ventilation supply port A5 of the dehumidifying air conditioner 210 to perform ventilation through an air supply diffuser (not shown) to each room.

In addition, the first damper 230 is installed in the inlet port A1 of the dehumidification air conditioner 210 to open and close the inlet port A1 under the control of the controller 280 which will be described later.

In addition, the second damper 240 is installed in the first duct 241 associated with the cooler exhaust port A3 of the dehumidifying air conditioner 210 to open and close the cooler exhaust port A3 under the control of the controller 280. Let's do it. Here, the end of the first duct 241 is located outdoors.

In addition, the third damper 250 is installed in the second duct 251 associated with the second external air intake port A7 of the dehumidification air conditioner 210 and is controlled by the controller 280 to control the second external air intake port A7. Open and close the Here, the end of the second duct 251 is located outdoors.

In addition, the fourth damper 260 is branched from the second duct 251 associated with the second outside air intake port A7 of the dehumidification air conditioner 210 to intake the indoor air in which the dehumidification air conditioner 210 is installed. The indoor air provided in the intake duct 261 and provided with the dehumidification air conditioner 210 under the control of the controller 280 intakes or blocks the air in the second outside air intake port A7. Here, it is preferable that the end of the intake duct 261 is located in the room in which the dehumidification air conditioner 210 was installed.

In addition, the fifth damper 270 is installed in the ventilation duct 220 to open and close the ventilation supply port A5 of the dehumidifying air conditioner 210 under the control of the controller 280.

Meanwhile, the controller 280 opens the first to third dampers 230 to 240 and the fifth damper 270 and closes the fourth damper 260 during the cooling operation according to the user's selection of the operation mode. The indoor air and the outdoor air having the 210 installed therein are respectively introduced into the enclosure 211 through the intake port A1 and the first outside air intake port A4 to be cooled in the gun channel CH1 to be dehumidified and cooled through the air supply port A2. The device 210 is discharged to the installed room, the air evaporated and cooled in the indirect evaporative cooler 214 is discharged to the outside through the exhaust port A3 for the cooler, and the outside air is introduced through the second outside air intake port A7. After passing through the wet channel (CH2) is discharged back to the outside through the exhaust port (A6).

Herein, the controller 280 closes the first to third dampers 230 to 240 and opens the fourth and fifth dampers 270 during the ventilation operation according to the user's selection of the operation mode. The outside air is introduced into the enclosure 211 through the outside air intake port A4 and discharged through the air supply port A2 and the ventilation supply port A5, respectively, and the indoor air is discharged through the intake duct 261 to the second outside air intake port ( Intake in A7) passes through the wet channel CH2 and is discharged through the exhaust port A6. At this time, during the ventilation operation, the outside air is exchanged with the indoor air sucked into the moisture channel CH2 by the dehumidification rotor 219 while passing through the dry channel CH1.

Hereinafter, with reference to the accompanying drawings, the operation of the combined-use stand-type dehumidification cooling system for district air-conditioning in accordance with the present invention in detail as follows.

4 and 5 are explanatory diagrams for explaining the operation of the combined ventilation stand-type dehumidification cooling system for district air-conditioning in accordance with the present invention.

"Cooling operation"

First, when the user selects the cooling operation according to the operation mode selection, the controller 280 opens the first to third dampers 230 to 240 and the fifth damper 270 and closes the fourth damper 260. Let's do it.

At this time, the air supply blower 213 of the dry channel CH1, the indirect evaporative cooler 214, the evaporator 215, the condenser 216 of the wet channel CH2, the heating coil 217, and the exhaust blower Both the 218 and the dehumidifying rotor 219 are operated.

Then, since the first damper 230 is opened, the indoor air (70%) and the outside air (30%) are introduced into the enclosure 211 through the inlet port A1 and the first external air inlet port A4, respectively, and then the gun The moisture is desorbed through the dehumidification rotor 219 of the channel CH1 and converted into dry air, and 70% of the introduced mixed air is cooled through the indirect evaporative cooler 214 to dry air to evaporator 215. Part of the dehumidifying air conditioner 210 is discharged through the air supply unit A2 to the room where the dehumidifying air conditioner 210 is installed, and the rest is introduced into the ventilation duct 220 through the ventilation supply port A5 to be discharged to each room so that cooling is performed. do. At this time, when the 'strong' cooling is selected according to the user's operation mode selection, the controller 280 temporarily closes the fifth damper 270 so that all the air in the gun channel CH1 is transferred to the room through the air supply port A2. You can also supply.

In addition, since the second damper 240 is opened, air (30%) evaporated and cooled in the indirect evaporative cooler 214 is discharged to the outside through the exhaust port A3 for the cooler.

At the same time, since the third damper 250 is opened, the outside air necessary for cooling is introduced through the second outside air intake port A7, and then the temperature is increased through the condenser 216 of the wet channel CH2, and the district heating water After the temperature is further raised while passing through the heating coil 217 (or hot water) supplied, the dehumidification rotor 219 is dried and regenerated and then discharged through the exhaust port A6.

"Ventilation operation"

When the user selects the ventilation operation according to the operation mode selection, the controller 280 closes the first to third dampers 230 to 240 and opens the fourth and fifth dampers 260 and 270.

At this time, only the air supply blower 213 of the dry channel CH1, the exhaust blower 218 and the dehumidification rotor 219 of the wet channel CH2 are operated.

Then, since the first damper 230 and the second damper 240 are closed, the outside air (100%) flows into the enclosure 211 through the first outside air intake port A4 and then passes through the gun channel CH1. Part of the dehumidification air conditioner 210 is discharged through the air supply unit A2 to the room where the air is installed, and the rest is introduced into the ventilation duct 220 through the ventilation supply port A5 to be discharged to each room so that ventilation is performed. .

In addition, since the third damper 250 is closed and the fourth damper 250 is opened, indoor air in which the dehumidifying air conditioner 210 is installed is taken in through the second outside air intake port A7 through the intake duct 261. After passing through the wet channel (CH2) is discharged through the exhaust port (A6). At this time, the outside air introduced into the enclosure 211 through the first outside air inlet A4 is heat-exchanged with the indoor air sucked into the wet channel CH2 by the dehumidifying rotor 219 to be introduced into the room.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is to be understood, however, that the invention is not to be limited to the specific forms thereof, which are to be considered as being limited to the specific embodiments, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims. .

210: Dehumidification cooling device 211: Enclosure
212: Vertical partition 213: Supply blower
214: indirect evaporation cooler 215: evaporator
216: condenser 217: heating coil
218: exhaust blower 219: dehumidification rotor
220-260: 1st-5th damper 270: controller
CH1: Gun channel CH2: Wet channel

Claims (5)

A vertical bulkhead is partitioned into a dry channel and a wet channel in a vertically upright enclosure, and an air blower, an indirect evaporative cooler and an evaporator are installed in the dry channel, and a condenser and a heating coil are provided in the wet channel. , An exhaust blower is installed, and a dehumidification rotor is installed at a lower end of the vertical bulkhead, and an inlet, a supply port, a cooler exhaust port, a first outside air inlet, and a ventilation supply port are formed on the gun channel side of the enclosure, respectively. And a dehumidifying air conditioner having an exhaust port and a second outside air intake port respectively formed at the wet channel side of the enclosure;
A ventilation duct installed inside a ceiling of a common house and connected to a ventilation supply port of the dehumidifying air conditioner to perform ventilation through an air supply diffuser to each room;
A first damper installed at an inlet of the dehumidifying air conditioner to open and close the inlet;
A second damper installed in a duct connected to an exhaust port of the cooler of the dehumidifying air conditioner to open and close the exhaust port of the cooler;
A third damper installed in a duct connected to a second outside air intake port of the dehumidifying air conditioner to open and close the second outside air intake port;
A fourth damper provided in an intake duct branched from a duct associated with a second outside air intake port of the dehumidifying air conditioner to intake indoor air, and inhaling or blocking indoor air to the second outside air intake port;
A fifth damper installed in the ventilation duct to open and close the ventilation supply port of the dehumidifying and cooling device; And
And a controller for controlling the first to fifth dampers according to an operation mode set by a user to perform a cooling operation or a ventilation operation. The method of claim 1,
The controller comprising:
During the cooling operation, the first to third dampers and the fifth dampers are opened, and the fourth dampers are closed to allow indoor air and outside air to flow into the enclosure through the intake and first outside air inlets, respectively, to cool the gun channel. And discharged through the air supply port, discharges air cooled by the indirect evaporative cooler to the exhaust port for the cooler, introduces outside air through the second air intake port, passes the wet channel, and then passes through the exhaust port. Ventilation stand type dehumidification cooling system for district air-conditioning, characterized in that the discharge. The method of claim 1,
The controller comprising:
During the ventilation operation, the first to third dampers are closed, the fourth and fifth dampers are opened, and the outside air is introduced into the enclosure through the first outside air intake port, and the exhaust air is discharged through the air supply port and the ventilation supply port. And stand-in dehumidification and cooling system for district air-conditioning of the apartment house, characterized in that indoor air is intaken through the intake duct in the second outside air intake port and passed through the wet channel. The method of claim 3, wherein
The controller comprising:
In the ventilation operation, the outside air is heat-exchanged with the indoor air sucked into the humid channel by the dehumidification rotor while passing through the dry channel, the stand-type dehumidification cooling system for ventilation of the multi-family house. The method of claim 3, wherein
The controller comprising:
When the 'strong' cooling is selected according to the user's operation mode selection, the fifth damper is temporarily closed to supply all the air of the dry channel to the room through the air supply. Stand type dehumidification cooling system.

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