KR20090030983A - Multi-type air conditioner and operating method for the same - Google Patents

Abstract

An air-conditioner and an operating method are provided to improve the operation control convenience of an indoor unit by identically operating the indoor unit included in a schedule group in demand control or peak power control. An air-conditioner comprises one or more outdoor units(01), and a plurality of indoor units(I1~I5) connected to the outdoor unit. A plurality of schedule groups is set up to operate one or more indoor units with the same schedule. In case the electric energy consumed with electrical machinery including the air-conditioner is greater than a demand standard value, a remote controller(10) controls one or more operations among a plurality of schedule groups so that the electric energy is lowered below the standard value.

Description

Multi-type air conditioner and operating method for the same

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner and an operation method thereof. In particular, when adjusting the amount of power consumed by an air conditioner or an electric device including the air conditioner, the operation of a plurality of indoor units included in the air conditioner is effective. It relates to an air conditioner and its operation method to be controlled by.

An air conditioner is a facility installed to purify indoor air to create a more comfortable indoor environment. The air conditioner discharges cold air into the room to regulate the room temperature. The air conditioner includes an indoor unit which is configured as a heat exchanger and installed indoors, and an outdoor unit which is configured as a compressor and a heat exchanger and supplies refrigerant to the indoor unit.

The air conditioner is equipped with a remote controller for efficient control of the indoor unit and the outdoor unit, and the remote controller enables the user to monitor and control a plurality of outdoor units and indoor units at a specific place without having to move to the place where each indoor unit and outdoor unit are installed. .

In the remote controller, when the amount of power exceeds the set value, an excessive power fee may be added, so that the amount of power consumed may be adjusted by controlling the operation of the indoor or outdoor unit by receiving the amount of power consumed by the air conditioner from the outside. . In this case, the indoor unit or the outdoor unit may be controlled by a management group unit, but in this case, the indoor unit or outdoor unit included in the same management group needs to be controlled so as not to stop operating at the same time, the air to which a plurality of indoor units or outdoor units are connected. Since there is an inconvenience of having to designate an indoor unit or an outdoor unit to control the operation in the harmonic, the control efficiency is lowered, and thus there is a limit to the control.

An object of the present invention is to set a schedule group for a plurality of indoor units included in the air conditioner when the control of the amount of power consumed is required, so that the operation is controlled in units of a schedule group, so that a plurality of regardless of group setting for management It is to provide an air conditioner and its operation method so that the indoor unit of the control easily.

In the air conditioner according to the present invention, an air conditioner including at least one outdoor unit and a plurality of indoor units connected to the outdoor unit, the plurality of schedule groups are set so that at least one indoor unit is operated by the same schedule, and the air conditioner When the amount of power consumed by the electrical device including the device is greater than the demand reference value, the remote controller for controlling the operation of at least one schedule group of the plurality of schedule groups, reducing the amount of power below the reference value.

In addition, the air conditioner according to the present invention, in the air conditioner including at least one outdoor unit, a plurality of indoor units connected to the outdoor unit, setting a plurality of schedule groups such that at least one indoor unit is operated by the same schedule, When the amount of power consumed by the air conditioner is greater than or equal to the set peak reference value, it comprises a remote controller for controlling the operation rate of the air conditioner in the schedule group unit, reducing the amount of power below the peak reference value.

In addition, the operation method of the air conditioner according to the present invention is a method of operating an air conditioner including at least one outdoor unit and a plurality of indoor units connected to the outdoor unit, the at least one indoor unit is scheduled to operate according to the same schedule Setting a group, when the amount of power consumed by the air conditioner or the amount of power consumed by the electric device including the air conditioner is input, comparing the amount of power with a predetermined reference value; And causing at least one schedule group of the schedule groups of the operation to be stopped.

When the air conditioner and its operation method according to the present invention configured as described above control the amount of power consumed, the indoor unit operated according to the same schedule by setting the schedule group, by controlling the operation in the schedule group unit, demand control Alternatively, during peak power control, indoor units included in a schedule group are operated in the same manner, thereby improving convenience of indoor unit operation control, improving efficiency according to power control, and changing indoor units periodically operated between schedule groups. There is an effect of improving satisfaction.

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

1 is a block diagram showing a demand control configuration of an air conditioner according to an embodiment of the present invention.

As shown in FIG. 1, the air conditioner monitors an operation state of at least one outdoor unit (O1), a plurality of indoor units (I), outdoor units, and indoor units (O1, I) connected to the outdoor unit (O1), and the operation thereof. It includes a first remote controller 10 for controlling. At this time, the number of the outdoor unit and the indoor unit is not limited to the drawings, it will be described with an example that one outdoor unit is installed.

In addition, the air conditioner is connected to the first remote controller 10 to transmit and receive data to monitor the outdoor unit and the indoor unit (O1, I) connected to the first remote controller 10, the control command for operation control the first remote And a second remote controller 20 for transmitting to the controller 10. In this case, the second remote controller 20 is connected to the first remote controller 10 within a predetermined distance or through a predetermined network such as the Internet.

The first remote controller 10 sets at least one schedule group for operating at least one indoor unit of the plurality of indoor units according to the same driving schedule, and controls each indoor unit to operate according to a schedule set in the schedule group. The schedule group is a grouping of indoor units operated by the same schedule regardless of the connection state between the outdoor unit and the indoor unit or a management group for management. The first remote controller 10 controls the indoor unit with the management group or the schedule group. Can be. Like the first remote controller 10, the second remote controller 20 may also set a schedule group for a plurality of indoor unit groups and control the operation of the indoor unit in units of schedule groups. In this case, the first remote controller 10 and the second remote controller 20 share an operation control command for a set schedule group or a schedule group by transmitting and receiving data to each other, and if the setting is changed in one of the remote controllers, The setting changed on the remote controller is reflected.

The first remote controller 10 includes an air conditioner, and is located in a predetermined building or a predetermined area and is operated by electric power as a power source, for example, a light, an elevator, or a home appliance of a building equipped with an air conditioner. It is connected to the first power meter (DC01) for measuring the amount of power consumed by the device. In this case, the first power meter DC01 is connected to the substation chamber PS for supplying power to an electric device including an air conditioner and measures the amount of power.

The first remote controller 10 controls the outdoor unit and the indoor units O1 and I in response to the amount of power input from the first power meter DC01. When the amount of power input from the first power meter DC01 is greater than or equal to a preset reference value, the first remote controller 10 controls the amount of power consumed by controlling the plurality of indoor units and the outdoor units. At this time, the first remote controller 10 receives the instantaneous power of the amount of power consumed by the electric device in a predetermined building or a predetermined area from the first power meter DC01 and compares it with the demand reference value, and operates the indoor unit in a schedule group unit. To control. All. In some cases, the first remote controller 10 may control the operation in units of indoor units, groups, or zones.

2 is a block diagram showing a peak power control configuration of the air conditioner according to an embodiment of the present invention. Another embodiment of the air conditioner includes at least one outdoor unit O1, a plurality of indoor units I connected to the outdoor unit, and a first remote controller 10, as shown in FIG. It further comprises a second remote controller 20. At this time, another embodiment of the air conditioner has the same reference numerals for the same configuration as the above-described embodiment, the description thereof will be omitted.

The first remote controller 10 is connected to the second power meter DC20 that measures the amount of power consumed by the outdoor unit O1 and the indoor unit I, and corresponds to the amount of power input from the second power meter DC02. The outdoor unit and the indoor unit O1, I are controlled. When the amount of power input from the second power meter DC02 is greater than or equal to a predetermined peak reference value, the first remote controller 10 controls the plurality of indoor units to reduce the amount of power consumed. At this time, the first remote controller 10 compares the instantaneous amount of power consumed by the outdoor unit and the indoor unit with the peak reference value to control the indoor unit in the schedule group. At this time, the operation of the outdoor unit is also changed according to the operation of the indoor unit.

3 is a block diagram showing the configuration of a remote controller of an air conditioner according to an embodiment of the present invention. The first remote controller 10 of FIGS. 1 and 2 described above is configured as shown in FIG. The first remote controller 10 includes a data unit 12, an input unit 13, an output unit 14, a communication unit 15, and a control unit 11.

The data unit 12 stores control data for controlling the outdoor unit and the indoor unit, and state information data of the outdoor unit and the indoor unit transmitted / received through the communication unit 15. In addition, the data unit 12 stores control command data received from the second remote controller 20 through the communication unit 15.

The input unit 13 includes at least one button or is provided with a touch panel to apply data through a button operation or data through a touch input to the controller 11. The output unit 14 outputs a control screen of the first remote controller, and outputs data transmitted and received through the communication unit 15. The output unit 14 outputs an operation state of the outdoor unit and the indoor units O1 and I on the screen, and displays a control menu for controlling the outdoor unit and the indoor unit. In addition to the display screen, the output unit 14 may further include a lamp, a speaker, and the like for displaying an operation state of the first remote controller 10.

The communication unit 15 includes at least one communication module to receive operation state data from the outdoor units and the indoor units O1 and I according to the first communication method, and from the input unit 13 or the second remote controller 20. Send the received control command. In addition, according to the second communication method, the data of the outdoor unit and the indoor units O1 and I are transmitted to the second remote controller 20, and control command data is received from the second remote controller 20. In this case, the first remote controller 10 further includes a conversion unit for converting data or a protocol to enable data transmission between the first communication method and the second communication method of the communication unit 15.

The control unit 11 sets a schedule group including at least one indoor unit of the plurality of indoor units, and sets an operation schedule for each schedule group. In addition, the controller 11 controls the indoor unit operation in units of a schedule group by comparing the amount of power input from either the first power meter DC01 or the second power meter DC02 with a reference value. In this case, when the air conditioner is configured as illustrated in FIG. 1, the controller 11 compares the amount of power input from the first power meter DC01 with the reference value and controls the schedule group according to the demand setting. When the air conditioner is configured as shown in FIG. 2 described above, the controller 11 compares the amount of power input from the second power meter DC01 with the peak reference value and controls the schedule group according to the peak power setting.

The control unit 11 controls the schedule group according to the schedule group control setting in a random order, a specified order, and a priority.

If the amount of power input is equal to or greater than the demand reference value or the peak reference value, the controller 11 controls the plurality of schedule groups to be stopped in the schedule group unit in any order. That is, the indoor unit included in the predetermined schedule group among the plurality of schedule groups is stopped, and the power amount re-input from the first or second power measuring devices DC01 and DC02 is again compared with the demand reference value or the peak reference value to be equal to or greater than the reference value. In this case, any schedule group in the running schedule group is stopped so that the control schedule is repeatedly stopped until the amount of power input is equal to or less than the demand reference value or the peak reference value.

In addition, the controller 11 controls the plurality of schedule groups to be sequentially stopped in the schedule group unit according to a preset order. That is, the control unit 11 controls so that the designated schedule groups are sequentially stopped in order until the input power amount becomes equal to or less than the demand reference value or the peak reference value.

Herein, when the schedule group is controlled according to an arbitrary order or a set order as described above, the controller 11 operates among a plurality of schedule groups according to a predetermined period when the amount of power inputted again is less than the demand reference value or the peak reference value. The stopped schedule group is re-operated, and the predetermined schedule group is operated to stop operation. That is, when the first schedule group is stopped and the amount of power is satisfied while the second schedule group is in operation, the first schedule group is reactivated at a predetermined cycle, and the second schedule group is controlled to stop the operation. Control it to be replaced.

When the priority is set in the plurality of schedule groups, the controller 11 causes the schedule group to stop operating in response to the set priority. When the priority of a plurality of schedule groups is input from the input unit 13 or the second remote controller 20, the controller 11 gives priority to each schedule group in response thereto, and corresponds to the input power amount. Of the schedule groups in operation, the schedule group of low priority is controlled to stop operation. In this case, when the amount of power is less than the demand reference value or the peak reference value, the controller 11 controls the schedule group which is in operation and the schedule group which is in operation to be stopped at predetermined cycles among schedule groups having the same priority.

The controller 11 determines that the demand reference value or the peak reference value is set incorrectly when the amount of power input even after all the schedule groups are stopped is determined to be the wrong reference value or the peak reference value, and an error message or a warning sound is output to the output unit 14 or the second remote. Output through the controller 20.

In addition, the controller 11 controls the operation rate of the air conditioner not to be equal to or greater than the set desired operation rate even when the amount of power is less than the demand reference value or the peak reference value.

In the peak power control, the controller 11 may not only control the schedule group according to the amount of power, but also control the operation rate by controlling the schedule group when the desired driving rate is exceeded based on the operation rate.

In this case, when the first remote controller does not include a separate input / output interface, a user command may be input or an operation state may be output by an external connection or a second remote controller.

4 is an exemplary diagram illustrating a screen of a remote controller according to a schedule group setting of an air conditioner according to an embodiment of the present invention.

As illustrated in FIG. 3, the first or second remote controller 10 provides a schedule management menu for setting and editing a schedule group, and sets and controls a schedule group in response to an input user command. . As described above, the schedule group is set regardless of the connection or management group between the outdoor unit and the indoor period. When the preset schedule group list D10 is displayed on one side of the screen, and one schedule group is selected, The schedule set in the selected schedule group is output to the schedule information window D30, and a schedule for the schedule group, that is, an operation time or a time or period for stopping can be set or edited (D40).

5 is an exemplary view showing a screen of a remote controller according to editing of a schedule group of an air conditioner according to an embodiment of the present invention.

As shown in FIG. 5, the first or second remote controllers 10 and 20 may select an indoor unit to be operated on the same schedule among a plurality of indoor units and set it as a schedule group. A list of schedule groups is displayed in the schedule group window D11, and a new schedule group is added through the operation of the add button DB03. In addition, a window for changing a name of a preset schedule group is generated when the rename button DB04 is operated, and the schedule group is renamed in response to the input data. During operation of the delete button DB05, the selected schedule group is deleted from the preset schedule groups.

When any one schedule group is selected in the schedule group window D11, a list of indoor units D12 included in the schedule group is displayed, and a list D13 for indoor units that can be added is displayed separately. At this time, a predetermined indoor unit is added or excluded to the schedule group when the indoor unit adding button DB01 or the indoor unit excluding button DB02 is input.

6 is an exemplary view showing a screen of a remote controller according to the demand control of the air conditioner according to an embodiment of the present invention.

As shown in FIG. 6, the first or second remote controllers 10 and 20 set demand reference values through a demand control menu, and display the amount of power input from the first power meter DC01. The amount of power consumed by the electric device including the air conditioner input from the first power meter (DC01) is displayed on the screen as a graph (D60), and the current mode information, the current operation rate and power amount, and the demand control setting are input. Is displayed on the screen D70. When the desired amount of power control button D61 is moved up and down on the graph D60 in which the amount of power is displayed, the desired amount of power, that is, the reference value of the demand, is changed.

In addition, the demand control setting is set by a user input in the demand control mode, or a default demand control setting is displayed, a desired power amount, and a desired operation rate or operation switching cycle can be set. The demand control value is the amount of power consumed, that is, the desired amount of power compared with the current amount of power. The operation switching period is a period in which the forced operation stop of the indoor unit or the schedule group is stopped for a predetermined time by the demand control.

In this case, the reference time may be set such that the schedule group in operation and the indoor unit group in which the operation is stopped are alternately operated.

7 is an exemplary view showing a screen of a remote controller according to the peak power control of the air conditioner according to an embodiment of the present invention.

As shown in FIG. 7, the first or second remote controllers 10 and 20 receive a power amount consumed by the air conditioner input from the second power meter DC02 and perform a menu for performing peak power control. to provide. In the peak power control menu, operation status information indicating that the current peak power is controlled is displayed, the current power amount by the air conditioner input from the second power meter (DC02), and the operation rate of the air conditioner are displayed. The other desired operation rate, desired power, and operation switching cycle are displayed (D55). Like the demand control menu in FIG. 6 described above, a current operation state and a setting state are displayed in a graph (D65), and a menu D75 for inputting or changing the peak control setting is displayed.

Looking at the operation according to an embodiment of the present invention configured as described above are as follows.

8 is a flowchart illustrating a method of controlling an air conditioner according to an embodiment of the present invention in any order.

In the case of the demand control or the peak power control by the remote controller, a control method in which any schedule group of the plurality of schedule groups is stopped and power is attenuated will be described as follows.

As shown in FIG. 8, the first or second remote controllers 10 and 20 (hereinafter, referred to as remote controllers) receive a current power amount from a connected power meter (S110), and input the power amount as a preset reference value. In the demand control, the demand reference value is compared, and in the peak power control, the peak reference value is compared (S120).

As a result of the comparison, the controller of the remote controller causes any schedule group of the plurality of schedule groups to be stopped when the current amount of power is equal to or greater than the reference value. Thereafter, the current power amount is input again from the power meter and compared with the reference value again. When the current power amount is higher than or equal to the reference value, any schedule group in the running schedule group is stopped. The controller of the traction controller repeats the above process until the current amount of power input satisfies the reference value such that the plurality of schedule groups in operation are stopped in an arbitrary order (S110 to S130).

If the input power amount is less than the reference value, the current operation is maintained (S140). Here, even if the input power amount is less than the reference value, if the operation rate of the air conditioner is more than the desired operation rate, the indoor unit is controlled to operate below the desired operation rate.

When the predetermined reference time elapses (S150), the operation of the schedule group in operation and the schedule group in which the operation is stopped to reduce the amount of power as described above are controlled to be variable (S160). That is, some schedule groups in which the schedule group is inactive or inactive are reactivated, and any schedule group in the schedule group which is in operation is suspended. In addition, when the operation switching period is set, the forced operation stop for the indoor unit or the schedule group is paused for each corresponding period.

At this time, the operation rate or air conditioning load of the schedule group to be re-operated and the schedule group to be stopped are the same or similar to maintain the operation rate so that the amount of power does not exceed the reference value. For example, when the schedule group of which the sum of the indoor unit capacities is 10 is operated again, it is preferable that the schedule group of which the sum of the indoor unit capacities is 10 is stopped.

9 is a flowchart illustrating a method of controlling an air conditioner in a specified order according to an embodiment of the present invention.

In the case of demand control or peak power control by the remote controller, a control method for deactivating an arbitrary schedule group among a plurality of schedule groups to attenuate the amount of power consumed is as follows.

When the messenger amount is received from the first or second power meter (DC01 or DC02) (S210), the remote controller compares the amount of power with a predetermined reference value, that is, a demand reference value in demand control, and a peak reference value in peak power control (S220). ). At this time, if the total amount is greater than or equal to the reference value, the schedule group is stopped in operation according to the specified order of the schedule group to be operated (S230). At this time, the operation stop order of the schedule group is set separately, and in some cases, if there is no separate setting, the order may be specified according to the indoor unit number, the indoor unit name, or the indoor unit address.

When the operation of the schedule group designated as described above is stopped, the amount of power corresponding thereto is received again (S240), and the received amount of power is again compared with the reference value (S250). As a result of the comparison, if the amount of power is equal to or greater than the reference value, the operation of the next schedule group is controlled to be stopped in the designated order (S260, and iterates until the amount of power becomes less than the reference value) (S240 to S260).

On the other hand, if the amount of power is less than the reference value as a result of the comparison, the operation of the schedule group currently in operation is maintained (S270).

When the predetermined reference time elapses, the scheduled schedule group is stopped again, and the next scheduled group is stopped in accordance with the specified order among the scheduled schedule groups (S290).

10 is a flowchart illustrating a method of controlling an air conditioner according to priority according to an embodiment of the present invention.

When the amount of power is received and input (S310), the power amount is compared with a reference value, that is, a demand reference value in demand control, and a peak reference value in peak power control (S320). As a result of the comparison, if the amount of power is greater than or equal to the reference value, the schedule group having a lower priority among the schedule groups in operation is controlled to stop driving (S330). After the operation of the schedule group is stopped, the power amount is received again (S340), and the input power amount is again compared with the reference value (S350). In this case, when the amount of power is equal to or greater than the reference value, the schedule group of the next priority is controlled to stop operation (S360), and the above process is repeated (S340 to S360).

At this time, when there are a plurality of schedule groups of the same priority, the schedules of the same priority group are stopped in an arbitrary order or a specified order. When all schedule groups of the same priority are stopped, the schedule of the next priority is stopped. Causes the group to stop.

As described above, the air conditioner and its operation method according to the present invention have been described with reference to the illustrated drawings. However, the present invention is not limited by the embodiments and drawings disclosed in the present specification, and it is applied within the scope of the technical idea. Can be.

1 is a configuration diagram showing a demand control configuration of an air conditioner according to an embodiment of the present invention;

2 is a block diagram showing a peak power control configuration of the air conditioner according to an embodiment of the present invention,

3 is a block diagram showing the configuration of a remote controller of an air conditioner according to an embodiment of the present invention;

4 is an exemplary view illustrating a screen of a remote controller according to a schedule group setting of an air conditioner according to an embodiment of the present invention;

5 is an exemplary view showing a screen of the remote controller according to the schedule group edit of the air conditioner according to an embodiment of the present invention;

6 is an exemplary view showing a screen of a remote controller according to the demand control of the air conditioner according to an embodiment of the present invention,

7 is an exemplary view showing a screen of a remote controller according to the peak power control of the air conditioner according to an embodiment of the present invention,

8 is a flowchart illustrating a method of controlling an air conditioner according to an embodiment of the present invention in any order;

9 is a flowchart illustrating a method of controlling an air conditioner in a specified order according to an embodiment of the present invention;

10 is a flowchart illustrating a method of controlling an air conditioner according to priority according to an embodiment of the present invention.

<Explanation of symbols on main parts of the drawings>

10: remote controller 11: control unit

12: data portion 13: input portion

14: output unit 15: communication unit

20: second remote controller DC01, DC02: power meter

I, I1 to I5: Indoor unit O1: Outdoor unit

PS: substation

Claims (14)

An air conditioner including at least one outdoor unit and a plurality of indoor units connected to the outdoor unit, Set a plurality of schedule groups such that at least one indoor unit is operated by the same schedule, When the amount of power consumed by the electric device including the air conditioner is greater than the demand reference value, by controlling the operation of at least one schedule group of the plurality of schedule groups, including a remote controller for reducing the amount of power below the reference value Air conditioner characterized by. The method according to claim 1, The remote controller is connected to a first power meter that includes the air conditioner and is located in a predetermined building or a predetermined area to measure in real time the amount of power consumed by an electrical device operated by electricity, And a controller configured to control the plurality of schedule groups by comparing the amount of power input from the first power meter with the demand reference value. An air conditioner including at least one outdoor unit and a plurality of indoor units connected to the outdoor unit, Set a plurality of schedule groups such that at least one indoor unit is operated by the same schedule, When the amount of power consumed by the air conditioner is more than the set peak reference value, by controlling the operation rate of the air conditioner in the unit of the schedule group, the air controller characterized in that it comprises a remote controller for reducing the amount of power below the peak reference value Harmonizer. The method according to claim 3, The remote controller is connected to a second power meter connected to the outdoor unit and the indoor unit to measure in real time the amount of power consumed by the air conditioner, And a controller configured to control the plurality of schedule groups by comparing the amount of power input from the second power meter with the peak reference value. The method according to claim 1 or 3, And the remote controller controls the plurality of schedule groups to be stopped in units of a schedule group in an arbitrary order. The method according to claim 1 or 3, And the remote controller controls the plurality of schedule groups to be sequentially stopped in a schedule group unit according to a preset order. The method according to claim 1 or 3, When the amount of power re-input is less than the demand reference value or the peak reference value, the remote controller reactivates the scheduled schedule group among the plurality of schedule groups according to a predetermined period, and operates a predetermined schedule group among the scheduled schedule groups. An air conditioner, characterized in that to control to stop. The method according to claim 1 or 3, And the remote controller gives priority to the plurality of schedule groups and causes the schedule groups to stop working in response to the priority. A method of operating an air conditioner including at least one outdoor unit and a plurality of indoor units connected to the outdoor unit, Setting a schedule group such that the at least one indoor unit is operated according to the same schedule; If the amount of power consumed by the air conditioner or the amount of power consumed by the electric device including the air conditioner is input, comparing the amount of power with a predetermined reference value; And stopping the operation of at least one schedule group of the plurality of schedule groups when the amount of power is equal to or greater than a reference value. The method according to claim 9, The step of stopping the schedule group is characterized in that the operation stops from the schedule group of the lower priority, corresponding to the priority given to the plurality of schedule groups. The method according to claim 9, The operation of the schedule group is suspended, the operation method of the air conditioner, characterized in that the plurality of schedule groups are suspended in a schedule group unit in any order. The method according to claim 9, The operation of the schedule group is suspended, the operation method of the air conditioner, characterized in that the operation is sequentially stopped according to the order set in the plurality of schedule groups. The method according to claim 11 or 12, After at least one schedule group of the plurality of schedule groups is stopped, When the amount of power inputted again is less than the reference value, the schedule group in which the schedule schedule is stopped among the plurality of schedule groups is re-activated according to a predetermined period, and a predetermined schedule group is stopped in the schedule schedule which is in operation to replace the schedule group. Operation method of the air conditioner, characterized in that it further comprises. The method according to claim 13, The step of replacing the schedule group And a predetermined schedule group among the schedule groups being operated in response to the operation rate by the re-operated schedule group so that the overall operation rate of the air conditioner is maintained.

Images