KR102491181B1 - Ventilation System and Control method using of it - Google Patents

Abstract

The present invention relates to a ventilation system which measures the temperature of air supplied from the outside to the inside to compare and determine the difference with the indoor air temperature, and controls first to third damper members of a thermostat as a preset operation control command according to the determination, thereby effectively preventing condensation in the ventilation system in winter and increasing the exhaust efficiency of harmful gases or polluted indoor air in a kitchen, bathroom or toilet, and a control method thereof.

Description

Ventilation system and control method {Ventilation System and Control method using of it}

The present invention relates to a ventilation system and a control method thereof. More specifically, it relates to a ventilation system capable of effectively exhausting harmful gases or polluted indoor air in a kitchen, bathroom or bathroom by preventing dew condensation in a ventilation system in winter and preventing deterioration of exhaust, and a control method thereof.

In general, a ventilation system for ventilating indoor air is installed in a residential building such as an apartment house or a general house to provide a pleasant indoor environment.

In most cases, indoor air pollution occurs during cooking and cooking in the kitchen, so a hood connected to an exhaust vent is installed in the kitchen to discharge heat and odor generated in the kitchen during cooking to the outdoors.

In addition, a separate indoor ventilation device is installed to ventilate the indoor space other than the kitchen. The indoor ventilation system drives an electric heat exchanger installed on the ceiling or the like through a control unit to discharge polluted air to the outside and supply fresh air to the room.

However, in the conventional ventilation system as described above, since the hood installed in the kitchen and the indoor ventilation device for indoor ventilation are operated separately, there is a disadvantage in that it does not efficiently ventilate the entire room.

That is, since indoor air is only discharged to the outside by operating the hood when cooking or cooking in the kitchen or by operating the ventilation fan in the bathroom or toilet, the exhaust performance or efficiency of the hood is reduced due to the negative pressure in the kitchen, bathroom or toilet. Harmful gas or polluted air containing odors generated in kitchens, bathrooms, or toilets is not discharged in time and diffuses into the room.

The present invention is a ventilation system capable of exhausting harmful gases or polluted indoor air generated in a kitchen or bathroom by facilitating the exhaust action of a ventilation unit by increasing indoor air pressure by blocking exhaust of a ventilation device or increasing air supply. It is a task to solve providing

In addition, the present invention is a system capable of preventing dew condensation in a ventilation system in winter, as well as preventing deterioration of exhaust caused by negative or negative pressure of indoor air pressure, and effectively exhausting harmful gases or polluted indoor air in a kitchen, bathroom or toilet. And it is an object to provide a control method thereof.

In addition, according to the present invention, the ventilation system is more stable through interlocking control of exhaust by the first to third damper members of the indoor ventilation system according to the air volume caused by the operation of the ventilation unit, and interlocking control by the measured differential pressure value. It is an object of the present invention to provide a ventilation system and its control method capable of efficiently operating and controlling, as well as reducing the burden of excessive interlocking control of an indoor ventilation system caused by unexpected operation of a ventilation unit.

In order to solve the above problems, the present invention has a fan unit for generating negative pressure and at least one ventilation unit installed in a kitchen or bathroom to exhaust harmful gases or polluted indoor air; a ventilation device installed in an air-conditioning room and connected to a plurality of indoor spaces through ventilation pipes to exhaust indoor air or supply outdoor air; and, when there is a differential pressure between the outdoor air pressure and the indoor air pressure according to the operation of the ventilation unit, the air supply amount by the air supply operation of the ventilation device is controlled to be greater than the exhaust amount according to the exhaust operation based on the differential pressure, or the exhaust operation is stopped. and a controller for controlling the ventilator to compensate for the differential pressure by operating only supply air operation.

In addition, an air pressure sensor for measuring the indoor air pressure and a communication module connected to the controller by wire or wirelessly and transmitting the indoor air pressure measured by the air pressure sensor to the controller are provided, and at least one indoor pressure installed in the room is provided. It may include a sensor unit.

Here, an air pressure sensor for measuring the indoor air pressure and a communication module connected to the controller by wire or wirelessly and transmitting the outdoor air pressure measured by the air pressure sensor to the controller are provided and installed outside the air conditioning room or the ventilation device. It may include at least one outdoor pressure sensor unit that is.

In this case, the ventilator includes a housing, an air supply port and an exhaust port provided on opposite sides of the housing, a pair of fan units for air supply operation and exhaust operation, and a device for selectively opening or blocking the air supply passage and the exhaust passage. It may include a plurality of damper members.

In addition, the plurality of damper members include a first damper member that selectively opens or blocks the outdoor air supply port, a second damper member that selectively opens or blocks the outdoor air outlet, and selectively opens or blocks the indoor air outlet. It may include a third damper member.

And, the present invention is provided with a fan unit for generating a negative pressure, and at least one ventilation unit installed in the kitchen or bathroom to exhaust harmful gas or polluted indoor air; a differential pressure sensor unit having a wired or wireless transmission device and installed outside the ventilation unit to measure a differential pressure value corresponding to a difference between indoor air pressure and atmospheric pressure; And a ventilation device having a receiving device for receiving the signal of the differential pressure sensor and having a total heat exchanger and having a supply port and an exhaust port on opposite sides, respectively; And a pair of temperature control air supply ports through which external air is introduced into the housing and opposite sides of the housing connected to the air supply port of the ventilation device and transferred to the air supply port, and the air outlet connected to the exhaust port of the ventilation device. A pair of temperature control outlets on opposite sides of the housing through which indoor air is discharged to the outdoors, and a temperature control air supply port and air outlet provided on the outdoor side of the housing are provided to selectively open and close the temperature control air supply port and the air outlet. A temperature control device including a first damper member and a second damper member mounted on a flow path inside the housing and a third damper member for selectively blocking the flow of indoor air introduced into the housing; An indoor ventilation system including an indoor ventilation system, wherein, when the indoor ventilation system is measured by the differential pressure sensor unit and the received differential pressure value is a negative pressure and corresponds to a preset range of differential pressure values associated with exhaust, the received differential pressure The first damper member to the third damper to increase the air pressure in the room by circulating the indoor air introduced into the ventilation device into the room through the air supply port of the ventilation device by circulating the inside of the temperature controller according to the value. It may be to control the degree of opening or closing of the member.

Here, the indoor ventilation system determines whether or not the differential pressure value measured and received by the differential pressure sensor unit is within the range of the differential pressure value associated with exhaust gas, and when it is within the range of differential pressure value associated with exhaust gas, the differential pressure value range associated with exhaust gas. and an exhaust interlocking control unit that controls the degree of opening or closing of the first damper member to the third damper member to be different according to at least two preset differential pressure value ranges classified within.

In addition, the exhaust linkage pressure differential range may include a range of -10Pa to -50Pa, and the at least two preset exhaust linkage pressure differential pressure ranges include a first range of -20Pa to -10Pa, and a range of -35Pa to -35Pa. A second range of -19Pa and a third range of -50Pa to -34Pa may be included.

Here, the differential pressure sensor unit may measure the differential pressure value at intervals of 8 to 15 minutes and transmit the measured differential pressure value to the indoor ventilation system, wherein the indoor ventilation system measures and receives the differential pressure value from the differential pressure sensor unit. When the determined differential pressure value is determined to be a value within the exhaust-linked differential pressure value range, the second damper member may be controlled to block the air flow of the temperature control exhaust port.

In addition, the indoor ventilation system circulates the indoor air introduced into the ventilation device into the room through the air supply port of the ventilation device as the differential pressure value received from the differential pressure sensor unit increases. The degree of opening or closing of the first damper member to the third damper member may be controlled so as to increase the speed of increasing the air pressure in the room.

In addition, the indoor ventilation system includes the first damper member to the third damper member so that the difference between the air supply temperature measured by the temperature sensor mounted inside the temperature control air supply vent and the indoor air temperature is 10 ° C or less. The degree of opening or closing may be controlled.

In addition, when the differential pressure value received from the differential pressure sensor unit is within the range of 0 to -5 Pa, the temperature controller controls the removal of pollutants in the indoor air according to the opening or closing of the first damper member to the third damper member. Air purification mode in which indoor air is removed and re-supplied indoors, ventilation mode in which indoor air is exhausted outdoors and outdoor air is supplied indoors, or a portion of indoor air is mixed with outdoor air and supplied indoors, and the rest of the indoor air is exhausted outdoors. It may be driven in a user mode including a temperature controlled ventilation mode.

In addition, a filter unit may be provided to remove dust from indoor air, outdoor air, or mixed air of indoor air and outdoor air passing through the housing of the temperature controller.

Further, the present invention uses the above-described ventilation system, and the differential pressure sensor unit measures a differential pressure value corresponding to a difference between indoor air pressure and atmospheric pressure; an exhaust linkage determination step in which the indoor ventilation system determines whether or not the measured differential pressure value received from the differential pressure sensor unit is within a range of the exhaust linkage differential pressure value; and when the indoor ventilation system determines that the value is within the range of the exhaust pressure differential pressure, the indoor air introduced into the ventilation device is circulated through the air supply port of the ventilation device through the air supply port of the ventilation device. and an exhaust linkage control step of controlling the opening or closing degree of the first damper member to the third damper member to increase the air pressure in the room by introducing air into the room.

In addition, in the exhaust interlocking control step, the exhaust interlocking differential pressure value range is classified into at least two or more ranges, and indoor air introduced into the ventilation device is circulated through the inside of the temperature controller according to each range to improve the ventilation system. The degree of opening or closing of the first damper member to the third damper member may be controlled so as to change a rate at which the air pressure is introduced into the room through the air supply port and the air pressure in the room is increased.

Here, the step of measuring the supply air temperature by a temperature sensor mounted inside the temperature control air supply port; and controlling, by the indoor ventilation system, degree of opening or closing of the first damper member to the third damper member so that a difference between the measured supply air temperature and the indoor air temperature is 10° C. or less. .

The indoor ventilation system receiving the differential pressure value measured by the differential pressure sensor unit at intervals of 10 to 15 minutes and determining whether the differential pressure value is within the range of the differential pressure value associated with the exhaust; and releasing the exhaust interlocking control and operating in a ventilation mode specified by a user in advance, when the differential pressure value does not correspond to a value within the exhaust interlocking differential pressure range.

The exhaust linkage control step may include controlling the first damper member to the second damper member within a preset air supply air volume range of the ventilation apparatus according to a preset air volume of the ventilation unit.

According to the ventilation system according to the present invention, by controlling the operation of the ventilation device in the controller to block the exhaust of the ventilation device or increase the amount of air supply to increase the indoor air pressure, the exhaust action of the ventilation unit is smooth, so that in the kitchen or bathroom Harmful gases or polluted indoor air generated can be exhausted.

In addition, according to the ventilation system according to the present invention, the exhaust efficiency of the kitchen, bathroom or bathroom ventilation unit is improved by increasing the indoor air pressure by controlling the operation of damper members installed in the air supply and exhaust ports of the ventilation device according to a preset operation control signal. can be raised

In addition, according to the ventilation system according to the present invention, it not only prevents condensation in the ventilation system in winter, but also prevents exhaustion reduction caused by negative or negative pressure of indoor air pressure, and removes harmful gases or polluted indoor air in a kitchen, bathroom or toilet. can be exhausted effectively.

In addition, according to the ventilation system according to the present invention, the temperature of the air supplied from the outside to the inside is measured, and the difference between the indoor air temperature and the indoor air temperature is compared and judged. By controlling the damper member, dew condensation can be effectively prevented, and the efficiency of exhausting harmful gases or polluted indoor air in a kitchen, bathroom or toilet can be increased.

In addition, according to the ventilation system according to the present invention, the interlocking control by the differential pressure value measured through the interlocking control of exhaust by the first to third damper members of the indoor ventilation system according to the air volume caused by the operation of the ventilation unit Together, the ventilation system can be operated and controlled more stably and efficiently, and the burden of excessive interlocking control of the indoor ventilation system caused by unexpected operation of the ventilation unit can be reduced.

1 shows a plan view of a residential space in which a ventilation system according to an embodiment of the present invention is installed.
2 shows a schematic diagram of the configuration and air flow of a ventilation system according to another embodiment of the present invention in which a kitchen ventilation unit and a ventilation device are interlocked.
Figure 3 shows a schematic diagram of the configuration and air flow of a ventilation system according to another embodiment of the present invention in which a ventilation unit and a ventilation device in a toilet or bathroom are interlocked.
Figure 4 shows an enlarged schematic diagram of a temperature sensor installed in the air supply in the ventilation system according to an embodiment of the present invention.
5 is a schematic diagram showing an operation control flow of a ventilation system control method according to an embodiment of the present invention.
6 shows a schematic diagram of a table measuring differential pressure values measured in a ventilation unit in an exhaust interlocking ventilation system according to an embodiment of the present invention.
7 is a graph showing the relationship between air volume and indoor air pressure of a ventilation unit applied to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments introduced herein are provided so that the disclosed content will be thorough and complete, and the spirit of the invention will be sufficiently conveyed to those skilled in the art. Like reference numbers indicate like elements throughout the specification.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

1 shows a plan view of a residential space in which a ventilation system according to an embodiment of the present invention is installed.

As shown in FIG. 1, the ventilation system according to an embodiment of the present invention includes a ventilation device 110, ventilation units 50 and 60 installed in kitchens and bathrooms or toilets, the ventilation device 110 and ventilation It may be provided including a controller 500 connected to the units 50 and 60 by wire or wirelessly.

Here, the ventilator 110 may have a distributor in an indoor ventilation duct, and the distributors 300a and 300b extend to the indoor pipes 20a and 20b to separate the indoor spaces and the indoor diffusers 21a and 21b. It is possible to connect the flow pipe through. That is, the indoor ventilation duct includes a supply inlet and an exhaust outlet, and is provided with distributors 300a and 300b for distributing so as to connect a plurality of indoor pipes 20a and 20b to the supply and exhaust outlets, respectively, and the distributors 300a and 300b. ), indoor pipes (20a, 20b) are extended, and indoor and outdoor ventilation is performed through air supply and exhaust through the indoor diffusers (21a, 21b) of each indoor space.

Since the ventilation pipe is mainly disposed on the indoor ceiling, as shown in FIG. 1, the ventilation device 100 may be provided on the ceiling of an air conditioning room (AS) such as a veranda. The ventilation system according to the embodiment of the present invention may further include a temperature control device that may be selectively directly connected to the ventilation device 110 .

A general ventilation system sucks polluted indoor air through a ventilation duct and discharges it to the outdoors, sucks in outdoor fresh air and supplies it to the room through a ventilation duct, and minimizes energy loss due to the temperature difference between indoor air and outdoor air. To do this, a total heat exchanger or the like for heat recovery may be provided.

As shown in FIG. 1, the ventilation system according to an embodiment of the present invention includes a fan unit for generating negative pressure and at least one ventilation unit installed in a kitchen or bathroom to exhaust harmful gases or polluted indoor air ( 50, 60); a ventilation device 100 installed in an air conditioning room and connected to a plurality of indoor spaces through ventilation pipes to exhaust indoor air or supply outdoor air; And, when there is a differential pressure between the outdoor air pressure and the indoor air pressure according to the operation of the ventilation unit (50, 60), the air supply amount by the air supply operation of the ventilator 100 is lower than the exhaust amount according to the exhaust operation based on the differential pressure. A controller 500 controlling the ventilator 100 may be included to compensate for the differential pressure by controlling the high pressure or by stopping the exhaust operation and operating only the supply air operation.

In general, a living space includes a ventilation device 100 installed in an air conditioning room (AS) to ventilate indoor air and a ventilation unit (50, 60) installed in a toilet or bathroom to discharge polluted air or harmful gases to the outside. ) is installed, and the indoor air pressure is quickly changed to a negative pressure state due to the exhaust by the ventilation device 100 and the operation of the fan unit of the ventilation units 50 and 60, and such a negative pressure state in the room is in the bathroom or bathroom. It causes a problem that makes it difficult to exhaust the installed ventilation units (50, 60).

In order to solve this problem, the ventilation system according to an embodiment of the present invention provides a differential pressure corresponding to the difference between outdoor atmospheric pressure and indoor air pressure according to the operation of the ventilation units 50 and 60 installed in the bathroom or toilet, negative pressure or negative pressure. pressure), by controlling the operation of the ventilator so that the exhaust amount is greater than the air supply amount, a ventilation system that smoothly exhausts indoor air by the operation of the ventilation units (50, 60) is provided.

In addition, the ventilation system according to an embodiment of the present invention is connected to an air pressure sensor for measuring indoor air pressure and the controller 400 by wire or wirelessly, and transmits the indoor air pressure measured by the air pressure sensor to the controller 400. It may include a communication module, and at least one indoor pressure sensor unit (not shown) installed indoors.

That is, in the ventilation system according to an embodiment of the present invention, the air pressure sensor measures the indoor air pressure in real time or periodically, transmits the measured air pressure to the controller 400, and measures the atmospheric pressure value and the indoor air pressure value measured by the controller 400. When the differential pressure value showing the difference between the negative pressure and negative pressure is negative or negative pressure, it is difficult to exhaust by the fan operation of the ventilation units 50 and 60 in the kitchen or bathroom, so the controller 400 By controlling the operation of the ventilator 110 to block the exhaust of the ventilator 110 or increase the amount of air supply to increase the indoor air pressure, the exhaust action of the ventilation units 60 and 60 is smoothed, so that the kitchen or bathroom It can exhaust harmful gases or polluted indoor air generated from

In addition, an air pressure sensor (not shown) for measuring the indoor air pressure and a communication module connected to the controller 400 by wire or wirelessly and transmitting the outdoor air pressure measured by the air pressure sensor to the controller 400 are provided. Including at least one outdoor pressure sensor (not shown) installed outside the air conditioning room or the ventilation device, the outdoor pressure and the indoor pressure are compared to smoothly remove harmful gases or polluted indoor air generated in the kitchen or bathroom as a whole. It is also possible to control the operation of the ventilator so that it can be exhausted properly. Here, the communication module may be any device capable of communicating at a distance within an indoor living space, such as a Bluetooth communication module or an RF communication module.

In addition, the ventilation device 110 includes a housing, an air supply port and an exhaust port provided on opposite sides of the housing, a pair of fan units for air supply operation and exhaust operation, and selectively opening or blocking the air supply passage and the exhaust passage. It may include a plurality of damper members for. The ventilator has a pair of fan units inside the housing to smoothly supply and exhaust air or control the speed. A damper member (not shown) that selectively opens or blocks the air supply or exhaust flow path. It is possible to improve the reduction in exhaust efficiency due to the negative pressure of the indoor air by increasing the amount or speed of supplying air into the room by controlling the operation of the damper member.

Here, the damper member includes a first damper member that selectively opens or blocks the outdoor air supply port, a second damper member that selectively opens or blocks the outdoor air outlet, and a third that selectively opens or blocks the indoor air outlet. It may include a damper member. When the indoor air pressure is negative, in order to increase the exhaust efficiency of the ventilation unit (50, 60), the exhaust is completely blocked through the third damper member of the ventilation device, and the first damper member is completely opened to supply air into the room Exhaust efficiency can be improved by increasing the air supply rate or by increasing the air supply speed through the operation of the fan unit provided in the above-described ventilation device and converting the indoor air pressure into a positive pressure. In addition, when there is a large indoor/outdoor temperature difference in winter, in order to prevent condensation, etc., the second damper member is blocked, and the first and third damper members are opened to allow air exhausted from the room to the outside. It is also possible to prevent dew condensation by mixing with the supplied air and increase the exhaust efficiency of the ventilation unit. (not shown)

2 shows a schematic diagram of the configuration and air flow of a ventilation system according to another embodiment of the present invention in which a kitchen ventilation unit and a ventilation device are interlocked, and FIG. A schematic diagram of a configuration and air flow of a ventilation system according to another embodiment is shown.

As shown in FIGS. 2 and 3, the ventilation system according to an embodiment of the present invention includes ventilation units 50 and 60 installed in a kitchen, bathroom, or toilet, and a wired or wireless transmission device, and a ventilation unit 50 , 60) and a differential pressure sensor unit 400 that measures the difference between air pressure and atmospheric pressure in a bathroom or toilet, a housing 110, a total heat exchanger 130 accommodated inside the housing 110, and a housing ( 110) Ventilation device 100 including air supply and exhaust ports formed to face each other on both sides, and mounted on the side of the ventilation device 100, the air supply and exhaust ports are provided on the side facing each other, temperature control A first damper member 271 capable of selectively opening or blocking the air supply port 270 and the exhaust port 260, a third damper member capable of selectively opening or blocking the second damper member 261 and the internal circulation passage ( 231) to increase the indoor air pressure when the differential pressure value received from the differential pressure sensor unit 400 is negative pressure. To provide a ventilation system for controlling the first damper member 271 to the third damper member 231.

As described above, in the ventilation system according to the embodiment of the present invention, the indoor ventilation system 1000 equipped with the thermostat 200 in the ventilation device 100 includes a differential pressure sensor installed in the ventilation units 50 and 60 installed in the bathroom. When the differential pressure value signal measured by the unit 400 is received and the indoor air pressure is a value within a preset interlocking negative pressure value range, the first damper member 271 to the third damper member 231 are operated according to a preset operation control signal. Provided is a ventilation system capable of increasing the exhaust efficiency of kitchen, bathroom or bathroom ventilation units (50, 60) by increasing indoor air pressure.

In addition, in the ventilation system according to the embodiment of the present invention, unlike the conventional ventilation system, the thermostat 200 is mounted on the ventilator 100 to discharge exhaust from the room to the outside through the thermostat 200. By mixing the supply air supplied from the outside to the inside through the internal circulation of the room, the amount of supply air supplied to the room or the speed of supply air is increased, thereby preventing condensation of the ventilator 100 in winter, as well as negative pressure of the indoor air pressure or Provided is a ventilation system capable of effectively exhausting harmful gases or polluted indoor air in a kitchen, bathroom, or toilet generated by negative pressure.

Here, as shown in FIGS. 2 and 3, the ventilation units 50 and 60 may be kitchen hoods or ventilators for discharging harmful gases or polluted air generated when cooking in the kitchen space to the outside, and in a bathroom or It may be a ventilation fan for discharging harmful gas or polluted air generated by using the toilet to the outside. Ventilation units (50, 60) or ventilators are equipped with fan units (55, 65) and continuously operate to suck indoor air to the outside to generate negative pressure.

In addition, the differential pressure sensor unit 400 may be provided to measure the air pressure in the room and measure the differential pressure value, which is the difference between the atmospheric pressure and the atmospheric pressure. It is preferable to install it outside so that the state of the exhaust efficiency of the ventilation units 50 and 60 can be more directly measured.

The differential pressure sensor unit 400 may include a communication device to transmit the measured differential pressure value to the above-described indoor ventilation system 100, and preferably has a wired or wireless transmission device. In the embodiment of the present invention, since the differential pressure value is measured and transmitted to the indoor ventilation system 1000 and the operation of the indoor ventilation system 1000 is controlled through the received signal, a wired or wireless receiver is not required separately. This is because the manufacturing cost can be lowered and the power efficiency can be increased by being provided as a transmission device or transmission module.

And, as shown in FIGS. 2 and 3, the indoor ventilation system 1000 includes a ventilation device 100 and a temperature control device 200 mounted on the side of the ventilation device 100 where the air supply and exhaust ports are located. can be configured.

Here, the ventilation device 100 includes a receiving device for receiving a signal of the differential pressure sensor unit 400 and a total heat exchanger 130, so that the air supply port and the exhaust port are provided on opposite sides. ), the housing 110 may be provided with a total heat exchanger 130 and fan units 160 and 170 capable of facilitating or accelerating air supply and exhaust. The supply air flow path and the exhaust flow path are configured to cross through the total heat exchanger 130 located in the center of the inside, so that the supply air flowing in from the outdoors and the exhaust exhaust discharged from the indoor to the outdoor are heat exchanged to reduce the rapid temperature difference between the indoor and outdoor air. is discharged to the outdoors, and outdoor air is introduced into the room to prevent deterioration of the insulation function due to inflow of cold air from the outside in winter.

And, as shown in FIGS. 2 and 3, the temperature control device 200 is connected to the air supply port of the housing and the ventilation device 100, the outside air is introduced into the opposite sides of the housing, A pair of temperature control air outlets 270 delivered to the air supply port, and a pair of temperature control exhaust ports through which indoor air is discharged to the outdoors on opposite sides of the housing connected to the exhaust port of the ventilation device 100 A first damper member ( 271) and the second damper member 261 and a third damper member 231 mounted on the passage inside the housing and selectively blocking the flow of indoor air introduced into the housing. .

That is, a damper member for selectively blocking the flow path may be provided in the temperature control supply inlet 270 and the exhaust outlet 260 provided on the outdoor side of the thermostat 200, in FIGS. 2 and 3 As shown, first and second damper members 261 and 271 may be provided on the first exhaust port 260 and the second air supply port 270, respectively, and on the internal flow path of the temperature control device 200 A third damper member 231 may be further provided. The third damper member 231 may selectively open or block a passage through which indoor air supplied from the ventilation device 100 passes through the inside of the housing.

That is, the damper members 261, 271, and 231 may include a rotary shutter for blocking the flow path and a drive motor for driving the rotary shutter, and the exhaust linkage control unit of the indoor ventilation system 1000 may include a motor The degree of opening or closing of the damper member can be adjusted only by rotation control.

As such, the temperature control device 200 according to the embodiment of the present invention includes the first damper member 271 to the third damper member 231 to supply air to the ventilation device 100 and the temperature control device 200 and The exhaust flow can be selectively opened or blocked, and the supply and exhaust flow can be controlled.

Therefore, as shown in FIGS. 2 and 3, the indoor ventilation system 1000 is measured by the differential pressure sensor unit 400 and received by the receiving device or receiving module installed in the indoor ventilation system through the transmitting device or transmitting module. According to the differential pressure value, indoor air introduced into the ventilation device 100 is circulated inside the temperature controller 200 and introduced into the room through the air supply port of the ventilation device 100 to increase the air pressure in the room. The degree of opening or closing of the first damper member 271 to the third damper member 231 may be controlled.

Looking more specifically at the air flow, as shown in FIGS. 2 and 3 , the ventilation units 50 and 60 installed in the kitchen, bathroom, or toilet are continuously operated by the fan units 160 and 170 to move the kitchen or The indoor air pressure in the bathroom space may generate negative pressure. When negative pressure is generated, noxious gases or indoor polluted air generated by cooking in the kitchen or using the bathroom or toilet have a negative pressure or negative pressure at which the indoor air pressure is lower than the external atmospheric pressure ( Negative pressure) causes a problem in that noxious gas or polluted air cannot be discharged to the outside.

Accordingly, in the ventilation system according to the embodiment of the present invention, the indoor ventilation system opens the shutter of the first damper member 271 provided at the air supply outlet of the temperature controller 200 to allow outdoor air to be supplied, and the temperature Close the shutter of the second damper member 261 provided in the exhaust port of the control device 200 to block the exhaust, but open the shutter of the third damper member 231 to remove the indoor air passing through the inside of the housing of the temperature controller When outdoor air is mixed with supplied air and introduced into the room through a heat exchanger, the air pressure inside the room can be converted back to a positive pressure by increasing the amount of air supplied without air being discharged to the outside. That is, when the differential pressure value signal received from the differential pressure sensor unit 400 is a negative pressure value within a preset range, the first damper member 271 to the third damper member 231 are controlled to block the exhaust air and to By increasing the air pressure and converting the negative pressure indoor air into a positive pressure state, the operation of the ventilation units 50 and 60 can increase the efficiency of exhausting harmful gases or polluted indoor air.

In addition, the indoor ventilation system 1000 recognizes that the differential pressure differential pressure value measured and received by the differential pressure sensor unit 400 is within an exhaust differential pressure differential pressure range corresponding to a preset negative pressure value to interlock with the ventilation units 50 and 60. Determine whether or not, and if it corresponds to the exhaust-linked differential pressure value range, the first damper member 271 to the third damper member (271) to the third damper member ( 231) may include an exhaust interlocking control unit 150 that controls to vary the degree of opening or closing.

That is, the exhaust interlocking control unit 150 is a control unit installed in the ventilator 100 and is connected to the transmitter of the ventilation units 50 and 60 by wire or wirelessly to receive and receive a differential pressure value signal from the receiver or receiver module. It is possible to determine whether the received differential pressure value signal is within a preset differential pressure value range associated with exhaust as a negative pressure value. In addition, the exhaust interlocking control unit 150 determines the differential pressure value within the above-mentioned exhaust interlocking differential pressure value range, the operation of the fan units 160 and 170 of the ventilator 100 as well as the exhaust port and supply of the temperature controller 200. It is possible to increase the exhaust efficiency of the ventilation units 50 and 60 by controlling the shutter operation of the first to third damper members 231 installed in the appliance to convert the indoor air into a positive pressure.

Here, the exhaust-linked differential pressure value range may be -10Pa to -50Pa as a negative pressure value, divided into two or more ranges, and controlling the air volume or air supply speed of supplied air supplied from the indoor ventilation system for each range. Exhaust interlocking with the ventilation units 50 and 60 may be controlled. That is, the at least two preset exhaust-linked differential pressure ranges are, more specifically, a first range of -20Pa to -10Pa, a second range of -35Pa to -19Pa, and a third range of -50Pa to -34Pa. can be distinguished to include.

As such, the indoor ventilation system 1000 measures the negative pressure state generated by the operation of the ventilation units 50 and 60 through the differential pressure sensor unit 400 and converts the indoor air pressure into positive pressure when the measured differential pressure value is negative or negative pressure. ) Setting the range of the differential pressure value associated with exhaust gas for the control of the differential pressure value reduces the burden caused by frequent control operations of the indoor ventilation system 1000 according to the change value in a state where the fluctuation value of the differential pressure value is large, and stably This is to operate a system that can increase exhaust efficiency.

In addition, the differential pressure sensor unit 400 does not measure the differential pressure value according to the air pressure in the kitchen, bathroom, or toilet in real time, but measures the differential pressure value at a predetermined time interval and transmits the differential pressure value to the indoor ventilation system 1000. it is desirable As for the time interval, it is preferable to measure the differential pressure value at intervals of 8 to 15 minutes in consideration of the minimum kitchen, bathroom, or toilet use time, and transmit the measured differential pressure value to the indoor ventilation system 1000.

In addition, when the indoor ventilation system 1000 determines that the differential pressure value measured and received by the differential pressure sensor unit 400 is a value within the range of the differential pressure value associated with exhaust, a device for changing a negative pressure state of indoor air to a positive pressure state. As a control method of the first damper member 271 to the third damper member 231, the shutter of the second damper member 261 mounted on the temperature control exhaust port of the temperature controller 200 is closed to block the air flow, It is possible to switch to a positive pressure state by increasing the indoor air pressure by supplying air supplied from outside into the room.

In addition, the degree of opening is adjusted through the shutters of the first damper member 271 to the third damper member 231 of the temperature control air supply or by controlling the operation of the fan units 160 and 170 of the ventilation device 100 to supply It is also possible to control the air volume or air supply rate. As the differential pressure value received from the differential pressure sensor unit 400 increases, the indoor ventilation system 1000 circulates the indoor air introduced into the ventilator 100 through the inside of the thermostat 200 to provide ventilation. The degree of opening or closing of the first damper member 271 to the third damper member 231 can be controlled so that the speed at which the air pressure in the room is increased by introducing it into the room through the air supply port of the device 100 is increased. there is.

In addition, as the above-described preset exhaust linkage differential pressure range, subdivided into a first range of -20Pa to -10Pa, a second range of -35Pa to -19Pa, and a third range of -50Pa to -34Pa, And when the differential pressure value is in the third range rather than the second range, it is also possible to increase the amount of air supply by increasing the degree of shutter opening of the first damper member 271 of the temperature control air supply 270, and the ventilation device 100 It is also possible to increase the air supply speed by increasing the degree of operation of the fan units 160 and 170. Alternatively, the shutter of the second damper member 261 of the temperature control exhaust port 260 is completely closed to completely block the exhaust, or the third damper member 231 installed in the internal circulation passage of the temperature control device 200 is opened. It is also possible to increase the air supply amount by supplying air by mixing air with air supplied again.

In addition, when there is a large difference between outdoor and indoor temperatures, such as in winter, dew condensation may frequently occur in the ventilation device 100, and the indoor ventilation system 1000 according to an embodiment of the present invention When the negative or negative pressure is applied, the indoor air pressure is converted from the negative pressure to the positive pressure by selectively controlling the degree of opening or closing of the first damper member 271 to the third damper member 231, thereby increasing the exhaust efficiency of the room. The second damper member 261 of the temperature control exhaust port is closed, and the third damper member 231 installed in the internal circulation passage of the temperature control device 200 is opened to circulate the warm air in the room and mix it with the supplied air coming from the outdoors. By doing so, it is possible to obtain the effect of fundamentally preventing the occurrence of condensation.

In the ventilation system according to an embodiment of the present invention, when the differential pressure value received from the differential pressure sensor unit 400 is a negative pressure value and is greater than or equal to -5Pa, the temperature controller 200 controls the first damper member 271 ) to an air purification mode in which contaminants from indoor air are removed and re-supplied indoors according to the opening or closing of the third damper member 231, a ventilation mode in which indoor air is discharged to the outdoors and outdoor air is supplied to the indoors, or Part of the indoor air is mixed with outdoor air and supplied indoors, and the rest of the indoor air may be driven in a user mode including a temperature control ventilation mode to be discharged to the outdoors.

As such, when the differential pressure value is -5Pa or more and the difference between the outdoor air pressure and the indoor air pressure is not large, the exhaust efficiency due to the operation of the ventilation units 50 and 60 is not greatly reduced, so the indoor ventilation system 1000 The user mode including the air purification mode, the ventilation mode, and the temperature control mode is maintained by controlling the operation of the first damper member 271 to the third damper member 231, or interlocks with the ventilation units 50 and 60 described above. It is possible to switch from the exhaust interlocking mode to the user mode.

And, as shown in FIGS. 2 and 3, the temperature controller 200 of the ventilation system according to the embodiment of the present invention removes dust from indoor air, outdoor air, or mixed air of indoor and outdoor air inside the housing. A filter unit for may be provided. (not shown)

That is, in order to enhance the air cleaning function during operation in the air purification mode or the temperature control mode, the temperature controller 200 may further include a filter unit, and the filter unit includes a pre-filter, a dust filter such as a HEPA filter, and an activated carbon filter. It may be configured to include at least one or all of the deodorization filters such as (not shown). As described above, the ventilation system according to the embodiment of the present invention controls the driving of the first to third damper members 231, and the temperature The exhaust air is circulated inside the control device 200 and mixed with the supply air again to introduce the mixed air into the room, but there is an advantage in that it is possible to interlock the exhaust air through the clean air by purifying it with the filter unit described above.

4 is an enlarged schematic diagram of a temperature sensor installed in an air supply in a ventilation system according to an embodiment of the present invention.

As shown in FIG. 4, in the indoor ventilation system 1000 according to an embodiment of the present invention, the difference between the supply air temperature measured by the temperature sensor 275 mounted inside the temperature control supply vent and the indoor air temperature is The degree of opening or closing of the first damper member 271 to the third damper member 231 may be controlled to be 10° C. or less.

As described above, in winter when there is a large temperature difference between indoor and outdoor temperatures, especially when the temperature difference is greater than 10 ° C, condensation often occurs in the ventilation device 100, and the occurrence of condensation causes the ventilation device 100 to malfunction. cause it to stop working or cause it to stop working. Therefore, in the embodiment of the present invention, in order to operate the system more safely and stably, a temperature sensor 275 is provided inside the air supply port of the thermostat 200 to measure and measure the temperature of the air supplied from the outside to the inside When the temperature value signal is sent to the exhaust interlocking control unit 150, the exhaust interlocking control unit 150 compares and determines the difference between the indoor air temperature and, based on the judgment, provides a preset operation control command for the first damper member 271 to the first damper member 271 to the second damper member 271. By controlling the second damper member 261, condensation can be effectively prevented.

5 is a schematic diagram showing an operation control flow of a ventilation system control method according to an embodiment of the present invention.

As shown in FIG. 5 , the ventilation system control method according to the embodiment of the present invention uses the ventilation system according to the embodiment of the present invention, and the differential pressure sensor unit 400 measures the difference between indoor air pressure and outdoor air pressure. a differential pressure value measuring step of measuring a corresponding differential pressure value; an exhaust linkage determination step in which the indoor ventilation system 1000 determines whether or not the measured differential pressure value received from the differential pressure sensor unit 400 is a value within the exhaust linkage differential pressure value range; And when the indoor ventilation system 1000 determines that the value is within the range of the differential pressure value associated with the exhaust, the indoor air introduced into the ventilation device 100 is circulated inside the temperature controller 200 according to the differential pressure value. Exhaust linkage for controlling the degree of opening or closing of the first damper member 271 to the third damper member 231 to increase the air pressure in the room by introducing it into the room through the air supply port of the ventilation device 100 Control steps may be included.

More specifically, the differential pressure sensor unit 400 installed outside the ventilation units 50 and 60 installed in the kitchen, bathroom, or toilet measures the differential pressure value by subtracting the outdoor air pressure value from the measured air pressure value in the indoor space, and exhaust It is transmitted to the interlocking control unit 150 using a transmitting device or a transmitting module. The exhaust interlocking control unit 150 determines whether the differential pressure value received through the receiving device or the receiving module is within a preset exhaust interlocking differential pressure value range, and if it falls within the range, the exhaust interlocking differential pressure value range corresponding to the measured differential pressure value. According to this, a preset exhaust interlocking operation control command signal is sent to the first damper member 271 to the third damper member 231 to control the operation to increase the indoor air pressure.

That is, as shown in the table on the left of FIG. 5, when the measured differential pressure value corresponds to the differential pressure value associated with exhaust in the first range of -10Pa to -20Pa, the damper members 271, 261, and 231 of the indoor ventilation system 1000 ), and performs a preset operation control command by setting the operation control to increase the indoor air pressure as 'about', and increasing the air pressure rather than 'about' in the case of corresponding to the second range exhaust interlocking differential pressure value of -21Pa to -35Pa When the air volume or air supply speed is set to 'medium' and the preset operation control command is performed, and the third range of -36Pa to 50Pa corresponds to the differential pressure associated with the exhaust, the air volume or air supply speed that increases the air pressure is higher than 'medium'. A preset motion control command can be executed by setting it to high 'Strength'.

Further, when the differential pressure value received by the exhaust interlocking control unit 150 does not correspond to the exhaust interlocking differential pressure value range, the previous indoor ventilation system 1000 is switched to a normal operation mode or a user mode, or is maintained. Here, the normal operation mode or user mode is an operation mode of the indoor ventilation system 1000 that can be selected and operated by a user in normal times, including an air purification mode, a ventilation mode, and a temperature control mode, regardless of indoor air pressure.

In addition, the temperature sensor 275 installed in the temperature control supply inlet of the temperature control device 200 receives the supply air temperature value from the exhaust interlocking control unit 150 and determines whether the difference value with the room temperature is 10 ° C. or less, If the temperature is below 10° C., the first damper member 271 to the third damper member 231 may be prevented from forming condensation by controlling the degree of opening or closing of the shutter of the damper member according to a preset control operation command. That is, the degree of opening of the first damper member 271 of the temperature control air supply port is reduced, and the third damper member 231 is opened to circulate the exhaust air inside the temperature control device 200 and mix it with the air supply to flow into the room. By increasing the supply air temperature, an operation for preventing dew condensation may be simultaneously performed together with an exhaust interlocking operation.

And, as shown in FIG. 5, in the ventilation system control method according to another embodiment of the present invention, the indoor ventilation system 1000 operates the differential pressure sensor unit 400 at intervals of 10 to 15 minutes. receiving a measured differential pressure value and determining whether the differential pressure value is within a range of the differential pressure value associated with exhaust; and when the indoor ventilation system 1000 does not correspond to a value within the range of the exhaust-linked differential pressure value, releasing the exhaust-linked control and operating in a normal operation mode operating in a ventilation mode designated by a user in advance. can include That is, by measuring the differential pressure value at intervals of 10 to 15 minutes and controlling the exhaust linkage, the system can be controlled more stably and efficiently.

6 is a schematic diagram of a table measuring differential pressure values measured in a ventilation unit in a ventilation system according to an embodiment of the present invention, and FIG. 7 is a graph showing a relationship between air volume and indoor air pressure of a ventilation unit applied to an embodiment of the present invention. to be.

As shown in (a) of FIG. 6, as a table showing measured values of indoor air pressure and differential pressure for each operating intensity of the range hood 50 with the ventilation units 50 and 60 operating when cooking in the kitchen, the range hood ( 50) After 15 minutes of operation, when the operating strength is 1st stage, -20Pa differential pressure value, 2nd stage, -30Pa value, 3rd stage, -45Pa value, 4th stage, -50Pa value.

In addition, as shown in (b) of FIG. 6, as a ventilation unit installed in the bathroom, a table showing the differential pressure of the ventilator 60, the bathroom ventilator 60 is a ventilation unit with a relatively low air volume compared to the range hood 50 As a unit, the differential pressure value is measured as a value of -10Pa, indicating a relatively low differential pressure value.

In this way, it can be seen that the differential pressure value is obviously increased as the indoor air pressure continues to decrease due to the continuous exhaust according to the operating intensity of the ventilation units 50 and 60 applied to the ventilation system according to the embodiment of the present invention. Depending on the specific specifications and operating strength of the ventilation units (50, 60) installed in the indoor living space, the exhaust interlocking control method of the indoor ventilation system (1000) according to the embodiment of the present invention is changed to enable more efficient and stable system operation. .

7 is a graph showing a relationship between air volume and indoor air pressure for each capacity of the ventilation units 50 and 60 applied to the ventilation system according to an embodiment of the present invention.

7 shows that the indoor air pressure decreases as the air volume of the ventilation units 50 and 60 exhausts the indoor air to the outside. In FIG. 7 (a), the air volume is 60 (CMH: Cubic Meter Hour) It can be seen that the indoor air pressure drops rapidly when , and in (b) of FIG. 7, when the air volume is 85 (CMH), and in (c) of FIG. It can be seen that the conversion to negative pressure).

Therefore, in the exhaust interlocking control step using the ventilation system according to the embodiment of the present invention, according to the preset air volume of the ventilation unit (50, 60), the air supply air volume of the ventilator 100 is set in advance within the range of the air supply air volume. A step of controlling the first damper member 271 to the second damper member 261 may be included.

As described above, the ventilation system according to the embodiment of the present invention operates the first damper member 271 to the third damper member 271 of the indoor ventilation system 1000 according to the air volume caused by the operation of the ventilation units 50 and 60 used in the kitchen, bathroom, or toilet. Through the exhaust linkage control by the damper member 231, the ventilation system can be operated and controlled more stably and efficiently with the linkage control based on the measured differential pressure value, as well as the ventilation unit 50, 60 There is an advantage in that the burden of excessive interlocking control of the indoor ventilation system 1000 caused by the operation of can be reduced.

Although this specification has been described with reference to preferred embodiments of the present invention, those skilled in the art will variously modify and change the present invention within the scope not departing from the spirit and scope of the present invention described in the claims described below. will be able to carry out Therefore, if the modified implementation basically includes the elements of the claims of the present invention, all of them should be considered to be included in the technical scope of the present invention.

1000: indoor ventilation system
100: Ventilation device
150: Exhaust interlocking control unit
200: temperature controller
231: third damper member
260: temperature control exhaust
261: second damper member
270: temperature control air supply
271: first damper member
400: differential pressure sensor unit

Claims (20)

delete delete delete delete delete At least one ventilation unit having a fan unit for generating negative pressure and installed in a kitchen or bathroom to exhaust harmful gases or polluted indoor air;
a differential pressure sensor unit having a wired or wireless transmitter and installed outside the ventilation unit to measure a differential pressure value corresponding to a difference between indoor air pressure and outdoor air pressure; and
a ventilation device having a receiving device for receiving a signal of the differential pressure sensor, a total heat exchanger, and having an air supply port and an exhaust port on opposite sides; and
A housing, a pair of temperature-controlled air supply holes through which external air is introduced into the opposite sides of the housing connected to the air supply hole of the ventilation device and transferred to the air supply hole, and the housing connected to the exhaust hole of the ventilation device. A pair of temperature-controlled exhaust ports through which indoor air is discharged to the outdoors on opposite sides of the housing, and a temperature-controlled air intake and air outlet provided on the outdoor side of the housing to selectively open and close the temperature-controlled air intake and exhaust port. A temperature control device including a first damper member, a second damper member, and a third damper member mounted on a flow path inside the housing and selectively blocking the flow of indoor air introduced into the housing. do,
When the differential pressure value measured and received by the differential pressure sensor unit of the indoor ventilation system is a negative pressure and corresponds to a preset range of differential pressure values related to exhaust gas, the received differential pressure value flows into the ventilator according to the differential pressure value. controlling the degree of opening or closing of the first damper member to the third damper member to increase air pressure in the room by circulating indoor air inside the thermostat and introducing it into the room through the air supply port of the ventilation device; ,
When the differential pressure value is a negative pressure in a preset range, the shutter of the first damper member provided in the temperature control air supply port is opened to allow outdoor air to be supplied, and the temperature control air outlet provided in the air outlet Close the shutter of the second damper member to block the exhaust of indoor air, and open the shutter of the third damper member so that the indoor air that has passed through the housing of the thermostat is mixed with the supplied air into which the outdoor air is introduced to generate heat The ventilation system according to claim 1 , wherein the first to third damper members are controlled to convert the air pressure in the room into a positive pressure by introducing air into the room through an exchanger. According to claim 6,
The indoor ventilation system,
It is determined whether the differential pressure value measured and received by the differential pressure sensor unit is within the exhaust differential pressure differential pressure value range, and if it corresponds to the exhaust differential pressure differential pressure value range, at least two preset differential pressure values classified within the exhaust differential pressure differential pressure value range are determined. and an exhaust interlocking control unit that controls the degree of opening or closing of the first damper member to the third damper member to vary according to a set differential pressure value range. According to claim 7,
The ventilation system, characterized in that the range of the differential pressure value associated with the exhaust includes a range of -10Pa to -50Pa. According to claim 7,
The at least two preset exhaust-linked differential pressure value ranges,
a first range of -20Pa to -10Pa;
a second range of -35 Pa to -19 Pa;
Ventilation system comprising a third range of -50Pa to -34Pa. According to claim 6,
The ventilation system according to claim 1 , wherein the differential pressure sensor measures the differential pressure value at intervals of 8 to 15 minutes and transmits the measured differential pressure value to the indoor ventilation system. delete According to claim 6,
The indoor ventilation system,
In proportion to the differential pressure value received from the differential pressure sensor unit, the speed at which indoor air introduced into the ventilation device is circulated inside the temperature controller and introduced into the room through the air supply port of the ventilation device to increase the air pressure in the room is The ventilation system, characterized in that for controlling the degree of opening or closing of the first damper member to the third damper member to increase. According to claim 6,
The indoor ventilation system,
The degree of opening or closing of the first damper member to the third damper member is controlled so that the difference between the air supply temperature measured by the temperature sensor mounted inside the temperature control air supply vent and the indoor air temperature is 10 ° C or less Characteristic ventilation system. According to claim 6,
A filter unit for removing dust from indoor air, outdoor air or mixed air of indoor air and outdoor air passing through the housing of the thermostat is provided in the housing,
When the differential pressure value received from the differential pressure sensor unit is within the range of 0 to -5Pa,
An air purification mode in which the temperature controller removes contaminants from the indoor air and supplies them back to the room according to the opening or closing of the first damper member to the third damper member, the indoor air is discharged to the outdoors and the outdoor air is A ventilation system characterized in that it is driven in a user mode including a ventilation mode supplied to the room or a temperature control ventilation mode in which a part of the indoor air is mixed with outdoor air and supplied to the room and the rest of the indoor air is discharged to the outdoors. delete In the control method of the ventilation system of any one of claims 6 to 10 and 12 to 14,
a differential pressure value measuring step of measuring, by the differential pressure sensor, a differential pressure value corresponding to a difference between indoor air pressure and outdoor air pressure;
an exhaust linkage determination step in which the indoor ventilation system determines whether or not the measured differential pressure value received from the differential pressure sensor unit is within a range of the exhaust linkage differential pressure value; and
and an exhaust linkage control step of controlling the degree of opening or closing of the first damper member to the third damper member according to the differential pressure value. According to claim 16,
In the exhaust interlocking control step,
The exhaust-linked differential pressure value range is classified into at least two or more ranges, and according to each range, indoor air introduced into the ventilation device is circulated inside the temperature controller and introduced into the room through the air supply port of the ventilation device. The ventilation system control method, characterized in that by controlling the degree of opening or closing of the first damper member to the third damper member to vary the rate of increasing the air pressure in the room. According to claim 16,
measuring the temperature of the supply air by a temperature sensor mounted inside the temperature control air supply port; and
The indoor ventilation system further comprises controlling the degree of opening or closing of the first damper member to the third damper member so that the difference between the measured supply air temperature and the indoor air temperature is 10 ° C or less. Ventilation system control method. According to claim 16,
receiving, by the indoor ventilation system, a differential pressure value measured by the differential pressure sensor at intervals of 10 to 15 minutes and determining whether the differential pressure value is within a range of the differential pressure value associated with exhaust; and
When the differential pressure value of the indoor ventilation system does not correspond to a value within the range of the differential pressure value associated with the exhaust gas, the ventilation system control method comprising the step of releasing the exhaust linkage control and operating in a ventilation mode specified by a user in advance. . According to claim 16,
In the exhaust linkage control step,
and controlling the first damper member to the second damper member within a preset air supply air volume range of the ventilation device according to a preset air volume of the ventilation unit.

Images