KR101470539B1 - air conditioner - Google Patents

Abstract

The present invention relates to an air conditioner, further comprising a contact controller connected to a remote controller or an indoor / outdoor unit, further comprising units connected to each other by a communication method or protocol via a contact controller, Thus, not only the unit is simply controlled but also various controls can be performed according to the option, thereby improving convenience and efficiency of control.

Air conditioner, contact controller, optional

Description

Air conditioner

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner, and more particularly, to an air conditioner that connects and controls units of different communication methods or different protocols through a contact controller.

Generally, an air conditioner is provided for cooling, heating, and purifying air, and is installed to discharge air of cold and hot into the room and purify the room air to create a more comfortable indoor environment for a human being. Such an air conditioner is controlled separately by an indoor unit constituted by a heat exchanger, an outdoor unit constituted by a compressor, a heat exchanger and the like, and controlled by a power source supplied to a compressor or a heat exchanger.

At least one of the plurality of outdoor units is driven corresponding to the number of the indoor units to be driven so that the refrigerant is supplied to the indoor unit in accordance with the requested operation state and the cooling / It is operated in heating mode.

Such an air conditioner may be installed in an indoor unit by directly connecting an additional unit in addition to the unit of the initially installed air conditioner, or may be additionally installed by using a predetermined connection device.

However, in the case of a unit additionally installed as described above, when the unit is different from the existing unit, the control can not be performed or only the simple control of turning the operation on or off is difficult, so that it is difficult to control the added unit. In addition, it is impossible to monitor and control the operation state of the unit added through the remote controller of the air conditioner, and it is controlled only at the site where the unit is installed.

An object of the present invention is to provide an air conditioner capable of monitoring and controlling a unit separately installed through a contact controller in addition to a previously installed unit through a remote controller, .

The air conditioner according to the present invention is characterized in that the air conditioner includes at least one outdoor unit, a plurality of indoor units connected to the outdoor unit, and a remote controller for centrally controlling the outdoor unit and the indoor unit, Unit, wherein the contact controller comprises: a mode setting unit for setting a mode for controlling the operation of the contact control unit connected to the contact controller; And a contact signal unit for receiving a contact signal corresponding to a connection state of the contact control unit, wherein the mode setting unit sets the mode of the contact unit to a predetermined operation mode Is set to be operative.

Further, in the air conditioner according to the present invention, the contact point control unit uses a protocol or a communication method in a manner different from that of the remote controller or the indoor unit.

The air conditioner according to the present invention configured as described above can perform various setting and control using options as well as simple ON / OFF control of the unit to be additionally installed, and can easily change the setting and control. And can be monitored and controlled with other units of the air conditioner at a long distance without moving to the field, so that efficiency according to the control and management of the air conditioner is greatly improved.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a configuration diagram illustrating an air conditioner according to an embodiment of the present invention.

1, the air conditioner according to the present invention includes one or more indoor units I11 to I13 and I21 to I23 and one or more outdoor units O1 and O2 connected to the indoor units I11 to I13 and I21 to I23, A remote controller (RC) for controlling and monitoring the indoor unit and the outdoor unit, and a local controller (R) for controlling the indoor unit connected to at least one indoor unit.

The air conditioner is connected to at least one of the remote controller RC, the outdoor units O1 and O2 and the indoor units I11 to I13 and I21 to I23 and is provided with a contact controller DCN ). The contact control units OP01 and OP02 may be at least one of a ventilator, a humidifier, an air purifier, and a heater, and the indoor unit and the outdoor unit may be additionally provided as additional contact control units.

The indoor units I11 to I13 and I21 to I23 include an indoor heat exchanger, an expansion valve for expanding the refrigerant supplied from the indoor fan, the outdoor units O1 and O2, and a plurality of sensors.

The outdoor unit (O1, O2) includes a compressor for receiving and compressing refrigerant, an outdoor heat exchanger for exchanging heat between the refrigerant and outdoor air, an accumulator for extracting the gas refrigerant from the supplied refrigerant and supplying it to the compressor, And a four-way valve. The apparatus also includes a high pressure sensor for measuring the pressure of the refrigerant discharged from the compressor and a low pressure sensor for measuring the pressure of the refrigerant supplied to the compressor. And a plurality of other sensors, valves, and oil collectors, but a description of the configuration thereof will be omitted in the following.

The outdoor units O1 and O2 and the indoor units I11 to I13 and I21 to I23 are connected through a refrigerant pipe to perform cooling or heating operation according to the flow of the refrigerant in accordance with the flow of refrigerant between the outdoor unit and the indoor unit, And transmits and receives mutual data according to the method.

The remote controller RC transmits and receives data through communication with the outdoor unit and the indoor unit and outputs the operation status through the display unit so that the user can monitor the operating states of the indoor unit and the outdoor unit.

Also, the remote controller (RC) generates and transmits a control command to control the operation of the indoor unit and the outdoor unit according to an input user command, and controls the outdoor unit and the indoor unit to be driven according to a predetermined schedule. Even when the air conditioner includes units other than the indoor unit and the outdoor unit such as the ventilation unit, the humidification unit, the air cleaning unit, and the heater, remote control and monitoring through the remote controller (RC) are possible.

At least one such remote controller (RC) is included in the air conditioner and can communicate with each other according to a predetermined communication method to control a unit included in the air conditioner.

The contact controller DCN transmits and receives data to and from the connected equipment, that is, the remote controller, the indoor unit, and the outdoor unit, even when using the different protocol, The data of the contact control unit is transmitted, and the control command is received so that the contact control unit is operated. At this time, the contact controller DCN variably controls the setting so that the connected contact control unit operates in a plurality of operation modes.

2 is a block diagram illustrating a connection configuration of a contact controller according to an embodiment of the present invention.

2, the contact controller DCN is connected to a remote controller (RC), and can connect outdoor units and indoor units having different communication methods or protocols different from those of the installed outdoor units and the indoor units to the contact control unit. At this time, the contact controller DCN may be provided inside the remote controller RC or may be separately connected to the outside. In addition to the indoor unit and the outdoor unit, the contact controller (DCN) can additionally connect an air cleaning unit, a ventilation unit, a humidifying unit, a heater, and an alarm unit.

The contact controller DCN may be connected to the outdoor unit O or the indoor unit I so as to connect a unit driven in conjunction with the operation of the indoor unit or the outdoor unit. At this time, the contact controller (DCN) can connect a ventilator, an air purifier, a humidifier, a heater, or the like, or connect an alarm device and a lighting device in some cases.

At this time, the contact controller DCN can set options for the contact control units OP1 and OP2 irrespective of the connected positions. The setting unit for setting the options may be provided in the contact controller, . Particularly, the setting unit of the contact point controller DCN may be attached to or provided on the side of the local controller R or the remote controller RC, thereby to variably control the setting of the contact point control unit.

The contact controller DCN is provided with conversion means according to a plurality of communication methods or protocols so that data can be exchanged between communications using different communication methods or different protocols. The contact controller DCN converts the transmitted and received data, .

3 is a block diagram illustrating the configuration of an air conditioner according to an embodiment of the present invention.

3, the contact controller DCN1 is connected to the remote controller RC1 as shown in (a) of FIG. 3, and the contact controller DCN1 is connected to the contactor And controls the contact point control unit OP1 connected to the controller. At this time, the setting unit of the contact control unit for setting the option for the contact control unit OP1 may be provided in the local controller, and in some cases, a separate local controller for the contact control unit OP1 may be provided. When there is a local controller for the contact control unit, the data of the user command inputted through the local controller is applied to the contact controller DCN1, and the contact controller DCN1 controls the contact control unit accordingly.

In the second embodiment of the contact controller, as shown in FIG. 3B, the contact controller DCN2 is provided inside the remote controller RC2. That is, the contact controller DCN2 is incorporated in the remote controller RC2 so that the above-described contact control unit, that is, the air cleaning device, the ventilator, the humidification device, the heater, the alarm device and the like are additionally connected to the air conditioner, And can be operated in cooperation with the harmonizer. At this time, since the contact controller DCN2 is embedded in the remote controller, the contact control unit can be connected to the remote controller without connecting to the external contact controller.

3C, the contact controller DCN3 is connected to the outdoor unit O3 and is interlocked with the operation of the outdoor unit O3 and the indoor unit I3 connected to the outdoor unit, OP3) can be operated.

In the fourth embodiment of the contact controller, as shown in FIG. 3 (d), the contact controller DCN4 is connected to the indoor unit I4 so that the contact control unit OP4 is connected. The contact controller DCN5 is connected to the indoor unit I5 and at the same time the contact controller DCN5 is provided in the remote controller RC2 as in the above- And is connected to the other contact controller DCN2 by a predetermined communication method so that the connected contact control unit OP5 is connected to the indoor unit and the remote controller RC2.

4 is a block diagram showing the configuration of the contact controller of Fig.

4, the contact controller DCN includes a communication unit 60, a contact control unit 10, a display unit 20, a contact signal unit 30, a mode setting unit 40, an initialization setting unit 50, .

The communication unit 60 includes at least one communication module and applies data received through a different communication method to the contact control unit 10 and transmits data in response to the control command of the contact control unit 10. [ At this time, the communication unit 60 includes a wired or wireless communication module, and operates as a gateway for converting and transmitting different protocols as the case may be. The communication unit 60 further includes a conversion unit for converting the type of data to be transmitted and received.

The contact point control unit 10 may be provided with the display unit 20 for setting the option or message output or connected to another unit such as the local controller R so that the option setting from the local controller R is input The state information of the contact point controller and the option setting of the contact point control unit can be displayed through the display part provided in the local controller R without a separate display part.

The contact signal unit 30 receives a signal corresponding to the connection state of the contact, and applies the signal to the contact control unit 10. At this time, the contact connection state can be represented by a signal of 1, 0, or high or low depending on the connection and disconnection, and various connection states can be represented corresponding to the connection terminals or the number of ports.

The mode setting unit 40 includes a plurality of switches and provides mode information corresponding to the setting of the mode setting switch to the contact point control unit 10. [ In addition, the mode setting unit 40 sets the control mode of the contact connection unit according to the switch setting to be opposite to the contact signal of the contact signal unit 30.

The mode setting unit 40 sets the mode according to the operation state of the switch and the contact signal, and sets a plurality of modes for controlling the contact control unit in accordance with the number of the mode setting switches and combinations thereof .

At this time, the mode setting unit 40 receives the contact signal of the contact signal unit 30, sets the controllability of the local controller, and sets the on / off or power saving mode of the temperature control unit. In addition, the mode setting unit 40 sets an initial driving state when the connected contact point control unit is operated, whether or not it is linked to other devices, a lock setting, and an operation mode according to the type of the unit.

The mode setting unit 40 sets the temperature corresponding to the measured value of the temperature adjusting unit and sets the on / off state of the temperature adjusting unit.

For example, when the indoor unit is connected to the contact controller DCN as the contact control unit OP, when the mode setting unit 40 sets the operation mode to the blowing mode, the indoor unit connected to the contact controller DCN is operated It operates in blowing mode. When the temperature is set to 20 degrees through the mode setting unit 40, the indoor unit, which is the contact control unit OP, stops operating when the temperature falls below 20 degrees in the cooling mode.

The initialization setting unit 50 restores the setting for controlling the contact control unit OP by the mode setting unit 40 and the contact signal unit 30 to the initial state.

The initialization setting unit 50 cancels the initial setting and returns to the initial setting value when either of the switches is operated for a predetermined time or is continuously operated. At this time, the initialization setting unit 50 outputs a predetermined warning sound or lights up a warning light when the setting is initialized.

Here, the display unit 20 outputs the operation state of the contact controller, and in particular, contact setting information according to the mode setting unit 40 and the contact signal unit 30 is displayed. Further, the display unit 20 may display status information of the contact control unit connected to the contact controller as the case may be. Also, the display unit 20 outputs an error when it occurs.

5 is a diagram showing the configuration of a contact signal unit of the contact controller of FIG.

5, the contact signal unit 30 of the contact controller includes contact connection terminals INA and INB and contact connection terminals CP21, CP22 and CP23 for transmitting signals of the contact connection unit to the contact control unit 10 .

The mode setting unit 40 includes a control mode switch SW6 for variably setting the control mode according to the contact signal of the contact signal unit 30. [

At this time, the mode setting unit 40 determines whether or not the input power is applied according to the contact signal input from the contact connection unit INA, INB of the contact signal unit 30 and the operation state of the control mode switch SW6, Whether the ON / OFF control is possible, and whether the temperature control unit is ON or OFF. Here, when the power is set to be applied, the external input power is used through the contact controller, and when the power is set to be not applied, the power of 5V is applied.

The control mode switch SW6 sets one of the plurality of control modes according to the setting. At this time, a signal is applied to the contact control unit 10 so that the connected contact control unit OP is operated in accordance with the set control mode. The control mode switch SW6 may be a rotary switch or a slide switch capable of setting a plurality of modes, but is not limited thereto.

The control mode setting of the contact control unit according to the control mode switch SW6 and the state of the contact signal will be described as follows.

In a state where the control mode switch SW6 is set to 0, independent control by the wired local controller is possible regardless of the input signals of the first contact connection portion INA and the second contact connection portion. Here, all other inputs are ignored.

If the input signal of the first contact connection unit INA is 0 and the input signal of the second contact connection unit is 0 when the control mode switch SW6 is set to 1, on / off control by the local controller is not possible And when the input signal of the first contact connection unit INA is 1 and the input signal of the second contact connection unit is 0, the connected contact control unit is set to operate and at the same time the control is disabled by the local controller. On the other hand, when the input signal of the first contact connection unit INA is 0, the input signal of the second contact connection unit is 1, and the input signal of the first contact connection unit INA is 1 and the input signal of the second contact connection unit is 1 , The operation of the connected contact control unit is stopped, and the control by the local controller becomes impossible.

Here, when the second contact connecting portion INB is 1, the connected contact control unit is forcibly stopped regardless of the setting of the control mode switch SW6 and the first contact connecting portion. However, when the control mode switch SW6 is set to 11 to 16, the setting for the other operation is exceptionally performed.

At this time, when the second contact connection unit INB is changed from 1 to 0, the contact control unit can start the operation, but the operation is started only when the setting of the first contact connection unit INA is changed, When the state of the contact connection (INA) is maintained, it is not operated automatically.

When the input signal of the first contact connecting portion INA is 0 and the input signal of the second contact connecting portion is 0 in the state where the control mode switch SW6 is set to 2, on / off control by the local controller is impossible, When the input signal of the first contact connecting portion INA is 1 and the input signal of the second contact connecting portion is 0, on / off control by the local controller is set to be possible.

When the input signal of the first contact connection unit INA is 0 and the input signal of the second contact connection unit is 0 when the control mode switch SW6 is 3, the operation stop control by the local controller is enabled, When the input signal of the connection unit INA is 1 and the input signal of the second contact connection unit is 0, the operation of the operation of the contact control unit is stopped and the operation stop control by the local controller is enabled. The operation start control by the local controller is impossible.

If the input signal of the first contact connection unit INA is 0 and the input signal of the second contact connection unit is 0 in the state where the control mode switch SW6 is 4, on / off control by the local controller is possible, When the input signal of the first contact connection part (INA) is 1 and the input signal of the second contact connection part is 0, ON / OFF control by the local controller is possible, but operation control by the contact control unit is disabled.

That is, when the control mode switch SW6 is 1 to 4, the operation of the contact control unit connected to the contact controller is changed and set in accordance with the signal of the first contact connection unit INA.

If the input signal of the first contact connection part INA is 0 and the input signal of the second contact connection part is 0 in the state that the control mode switch SW6 is set to 5, the on / off control by the local controller is disabled And the input signal of the first contact connection part INA is 1 and the input signal of the second contact connection part is 0, on / off toggle control is enabled when the first contact connection part INA is changed to ON.

On the other hand, when the control mode switch SW6 is 6, when the input signal of the first contact connection unit INA is 0 and the input signal of the second contact connection unit is 0, When the input signal of the first contact connection unit INA is 1 and the input signal of the second contact connection unit is 0, on / off toggle control becomes possible immediately when the signal of the first contact connection unit becomes a high signal. When the input signal of the other second contact connecting portion is 0, the operation of the connected contact control unit is stopped irrespective of the signal of the first contact connecting portion (INA), and on / off control by the local controller becomes impossible.

On the other hand, when the control mode switch SW6 is 7 to 11, the operation setting for the contact control unit is changed and set corresponding to the signals of the first contact connection part and the second contact connection part.

If the signal of the second contact connection portion is 1 when the control mode switch SW6 is 7 to 10, the contact control unit stops operating regardless of the signal of the first contact connection portion, and ON / OFF control by the local controller is Is limited.

When the signal of the second contact connection portion is 0 and the signal of the first contact connection portion INA is 0 and the control mode switch SW6 is 7 and 8, the ON / OFF control by the local controller is impossible do. On the other hand, if the control mode switch SW6 is 9, the ON / OFF control by the local controller is enabled, and if the control mode switch SW6 is 10, the ON / OFF control by the local controller is enabled.

If the signal of the second contact connection portion is 0 and the signal of the first contact connection portion INA is 1 and the control mode switch SW6 is 7, the contact control unit is operated and the ON / OFF control by the local controller is When the control mode switch SW6 is set to 8, the contact control unit is operated and ON / OFF control by the local controller is set to be possible. When the control mode switch SW6 is set to 9, the contact point control unit is operated, the operation start control by the local controller is disabled, but the OFF control is enabled. When the control mode switch SW6 is 10, On / off control by the ON / OFF control is possible. However, control by the contact control unit controller becomes impossible.

On the other hand, when the control mode switch SW6 is 11, it is possible to individually control the local controller when the input signal of the first contact connection unit INA is 0 and the input signal of the second contact connection unit is 0, , The contact control unit is operated when the input signal of the first contact connection unit INA is 1 and the input signal of the second contact connection unit is 0 and the ON / OFF cancellation by the local controller is enabled do.

When the control mode switch SW6 is in the twelfth to sixteenth modes, the operation of the temperature measuring device using the signal of the second contact connection unit INB is set.

If the input signal of the first contact connection part INA is 0 and the input signal of the second contact connection part is 0 when the control mode switch SW6 is 12, on / off control by the local controller is disabled, If the input signal of the 1 contact connection unit (INA) is 1, on / off toggle control becomes possible when the signal is changed to 1. If the second contact connection part INB is 1, the temperature measuring device is stopped regardless of the input signal of the first contact connection part INA.

When the input signal of the first contact connection unit INA is 0 and the input signal of the second contact connection unit is 0 in the state that the control mode switch SW6 is set to 13, on / off control by the local controller is impossible, If the input signal of the first contact connection unit INA is 1, on / off toggle control becomes possible when the signal is changed to 1. At this time, when the input signal of the second contact connection unit INB is 1, the power saving mode is set regardless of the input signal of the first contact connection unit INA.

When the control mode switch SW6 is set to 14, the input signal of the first contact connection unit INA is 0, the input signal of the second contact connection unit is 0, and individual control of the local controller is possible. If the input signal of the first contact connection unit INA is 1, the on / off toggle control is enabled when the signal is changed, and the on / off control by the local controller is also made possible at this time. At this time, when the input signal of the second contact connection part INB is 1, the temperature measurement device is stopped regardless of the input signal of the first contact connection part INA.

When the control mode switch SW6 is set to 15, the control mode switch SW6 is set to 14. However, if the input signal of the second contact connection unit INB is 1, the first contact connection unit INA The power saving mode is set regardless of the input signal of the power saving mode.

6 is a diagram showing a configuration of a mode setting unit of the contact controller of FIG.

As shown in FIG. 6, the mode setting unit 40 can set the temperature to the connected contact control unit OP.

The mode setting unit includes a temperature control unit VB01, connection terminals CP11 and CP12 of the temperature control unit, and a plurality of setting switches S1, S2, and S3.

At this time, a variable resistor whose resistance value is variable according to the operation state can be used for the temperature regulating part VB01. The connection terminals CP11 and CP12 are connected to both ends of the temperature control unit VB01 and are connected to the contact control unit 10. [

At this time, the contact control unit OP can be set to operate based on the temperature set by the temperature control unit VB01 according to the operation state of the setting switches S1, S2, and S3. That is, when the control using the temperature is turned off by the setting switch, the contact control unit OP is operated regardless of the set temperature even if the temperature is set by the temperature regulating unit. Further, it is possible to set the contact point control unit to be controlled in accordance with the temperature value of the temperature control unit in the control by the local controller according to the operation state of the setting switch.

Operation according to one embodiment of the present invention will now be described.

7 is a flowchart illustrating an operation method of an air conditioner using a contact controller according to an embodiment of the present invention.

Referring to FIG. 7, it is determined whether a remote control device, that is, a remote controller (RC) is connected (S110). At this time, if the inter-product protocols match, the communication speed is checked and it is determined whether the communication speeds match (S130).

Here, when the protocol between the products and the communication speed coincide with each other, data is exchanged between products in a communication method set using a designated protocol, and communication with a device connected via a remote controller (RC) . (S150).

If at least one of the protocol and the communication method among the products does not coincide, it is determined whether or not the contact controller is installed (S140). If the contact controller is installed and the contact controller is connected through the contact controller, Thereby controlling the ON / OFF operation of the contact point control unit.

At this time, the operation of the contact point control unit can be controlled differently according to the setting of the contact point controller.

Here, when at least one of the protocol and the communication method does not coincide and a different contact control unit is connected in a state where the contact controller is not connected, the control of the corresponding contact control unit through the central control device is impossible (S170) An error message is output (S180).

As described above, the air conditioner according to the present invention has been described with reference to the drawings. However, the present invention is not limited to the embodiments and drawings disclosed in this specification, and can be applied within the scope of protection of technical ideas.

FIG. 1 is a configuration diagram illustrating an air conditioner according to an embodiment of the present invention. FIG.

2 is a block diagram showing a connection configuration of a contact controller according to an embodiment of the present invention;

3 is a block diagram illustrating the configuration of an air conditioner according to an embodiment of the present invention,

Fig. 4 is a block diagram showing the configuration of the contact controller of Fig. 3,

5 is a diagram showing the configuration of a contact signal unit of the contact controller of FIG. 4,

FIG. 6 is a diagram showing the configuration of a mode setting unit of the contact controller of FIG. 4,

7 is a flowchart illustrating an operation method of an air conditioner using a contact controller according to an embodiment of the present invention.

DESCRIPTION OF THE REFERENCE NUMERALS

I, I11 to I13, and I21 to I23:

O, O1, O2: outdoor unit RC1: remote controller

R: Local controller

DCN: Contact controller OP1, OP2: Contact control unit

10: contact control unit 20: display unit

30: contact signal unit 40: mode setting unit

50: initialization setting section 60: communication section

Claims (12)

1. An air conditioner comprising at least one outdoor unit, a plurality of indoor units connected to the outdoor unit, and a remote controller for centrally controlling the outdoor unit and the indoor unit, Further comprising a contact controller for connecting a contact control unit to any one of said indoor unit and said remote controller, Wherein the contact point controller comprises: a mode setting unit for setting a mode for controlling the operation of the contact point control unit connected to the contact point controller; And And a contact signal unit for receiving a contact signal corresponding to a connection state of the contact control unit, Wherein the mode setting unit sets the contact control unit to operate in a predetermined operation mode in accordance with a set mode and a combination of settings by the contact signal. delete The method according to claim 1, Wherein the contact point controller is configured to control the temperature setting for the operation control of the contact point control unit, the command reception state of the controller, the energy saving mode, the initial drive state, the operation mode, Wherein the control unit controls the contact control unit to operate in at least one of the operation modes. The method according to claim 1, Wherein the contact point controller is configured to set a ventilation mode for controlling the operation of the contact point control unit, an interlocking state setting for another outdoor unit or an indoor unit, an initial driving state for the ventilation mode, Wherein the control unit controls the contact control unit to operate in at least one operation mode of the lock. The method of claim 3, Wherein the contact controller controls the contact control unit to operate in response to the received command when the mode setting unit is set to receive an instruction from any one of the remote controller, the local controller, and the indoor unit. group. The method according to claim 1, Wherein the contact controller further comprises a temperature controller for setting a temperature for the contact control unit in the mode setting unit and sets a temperature value set by the temperature controller to a target temperature for the contact control unit Air conditioner. The method of claim 6, Wherein the temperature controller further comprises a variable resistor whose resistance value varies according to an operation state, and the target temperature is input in correspondence with a resistance value of the variable resistor. The method according to claim 1, Wherein the mode setting unit includes a plurality of switches, and at least one of the plurality of switches is attached to at least one of an indoor unit, a remote controller, and a local controller to which the contact controller is connected. The method of claim 8, Wherein the mode setting unit includes at least one of a rotary switch, a sliding switch, a touch input means, and a button. The method according to claim 1, Wherein the contact control unit includes at least one of an indoor unit, an air purifier, a ventilator, a heater, and a humidification unit. The method according to claim 1, Wherein the contact point control unit uses a protocol or a communication method in a manner different from that of the remote controller or the indoor unit. The method according to claim 1, Wherein the contact point controller controls the contact point control unit to operate in conjunction with an operation state of the indoor unit and the outdoor unit in response to a control command of the remote controller.

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