JP6563120B2 - Air conditioner - Google Patents

Description

  The present invention relates to an air conditioner having a function of automatic air volume operation.

  Conventionally, in an air conditioner equipped with an air volume automatic operation function, the rotation speed of the indoor fan of the air conditioner is controlled based on the difference between the set temperature arbitrarily set by the user with a remote controller or the like and the room temperature to be air-conditioned. doing. Specifically, when the difference between the set temperature and room temperature is large, the rotational speed of the indoor fan is increased, and when the difference between the set temperature and room temperature is small, the rotational speed of the indoor fan is decreased. Thus, by controlling the rotation speed of the indoor fan, the air volume of the air blown out from the outlet of the indoor unit is controlled (see Patent Documents 1 to 3).

  Further, when the difference between the set temperature and the room temperature is large, a state where the number of rotations of the indoor fan is large may continue for a long time. As a result, the state in which the amount of air blown from the air outlet of the indoor unit is large continues for a long time, and the user may feel uncomfortable feelings such as noise, draft feeling, document fluttering, and hair turbulence. Therefore, in the automatic air volume operation, the air volume is controlled for a predetermined period without selecting a control zone corresponding to the specified number of times or more (see Patent Document 4).

JP-A-4-52451 JP-A-5-322290 JP-A-2-78796 JP 2009-145008 A

  However, in the air conditioner described in Patent Document 4, when the capacity of the air conditioner is insufficient, the difference between the set temperature and the room temperature is large even after a predetermined time has elapsed, which causes discomfort to the user. Further, even if the air conditioner has sufficient capacity, it takes a long time for the room temperature to approach the set temperature compared to the operation in the normal mode, which causes discomfort to the user.

  The present invention has been made to solve the above-described problems, and an object thereof is to provide an air-conditioned space that is comfortable to the user in terms of temperature while ensuring quietness.

An air conditioner according to the present invention includes a plurality of indoor units having indoor fans that supply air to an air-conditioned space, a temperature sensor that detects the indoor temperature of the air-conditioned space, and a human sensor that detects the presence of a person in the air-conditioned space. And an air conditioning control means for controlling a plurality of indoor units to control the air conditioning of the entire air conditioning space. The air conditioning control means corresponds to the level of the temperature difference between the indoor temperature detected by the temperature sensor and the set temperature. Select a control level suitable for eliminating the actual temperature difference from the multiple control levels of the indoor fan wind speed specified in stages, and the wind speeds of the indoor fans of the multiple indoor units according to the selected control level. When the quietness priority mode, which is an operation mode in which the quietness is given priority over the capacity during operation of the indoor unit, is set in the plurality of indoor units, the air conditioning control means The control level is selected from among the control levels that are lower than the control level corresponding to the predetermined wind speed or higher, and the indoor fan is controlled, and the actual performance is determined by the sum of the capacity of each indoor fan of the multiple indoor units. The indoor fans of the plurality of indoor units are controlled so that the temperature difference between the indoor units is different from the capabilities of the other indoor units. When the level of the actual temperature difference of each indoor unit is different, the air conditioning control means determines whether the indoor fan of the indoor unit is smaller than the other indoor units among the plurality of indoor units. The wind speed is increased .
The air conditioner according to the present invention includes a plurality of indoor units having indoor fans that supply air to the air-conditioned space, a temperature sensor that detects the indoor temperature of the air-conditioned space, and a person that detects the presence of a person in the air-conditioned space. And an air conditioning control means for controlling the air conditioning of the entire air conditioned space by controlling a plurality of indoor units. The air conditioning control means is configured to adjust the temperature difference between the indoor temperature detected by the temperature sensor and the set temperature. Correspondingly, a control level suitable for resolving the actual temperature difference is selected from a plurality of indoor fan wind speed control levels that are defined in stages, and the indoor fans of the plurality of indoor units are selected according to the selected control level. When the quietness priority mode, which is an operation mode in which the quietness is given priority over the capacity during operation of the indoor units, is set in the plurality of indoor units, the air conditioning control means The control level is selected from control levels lower than the control level corresponding to the predetermined wind speed or more, and the indoor fan is controlled, and the total capacity of each indoor fan of the plurality of indoor units is selected. The indoor fans of the plurality of indoor units are controlled so that the actual temperature difference is reduced by the air conditioner. When the capabilities of the plurality of indoor units are the same, the air conditioning control means uses a human sensor in the conditioned space. This increases the wind speed of the indoor fan of the indoor unit in which the presence of air is detected.

  According to the air conditioner of the present invention, when the silent priority mode is set for a plurality of indoor units, each indoor unit is operated so as not to select a control level of a temperature difference corresponding to a predetermined wind speed or higher. The operation is performed so that the temperature difference between the set temperature and the room temperature is reduced by the sum of the capacities of the indoor units. Therefore, the user is not given any discomfort such as noise, draft feeling, fluttering of documents, hair turbulence, and the like, and the user is not given temperature discomfort due to the temperature difference not being reduced. . As a result, a comfortable air-conditioned space can be provided.

It is a system configuration figure in Embodiment 1 of the present invention. It is the schematic of the refrigerant circuit of the air conditioning apparatus in Embodiment 1 of this invention. It is a control block diagram of the air conditioning apparatus in Embodiment 1 of this invention. It is a figure which shows the relationship between the temperature difference at the time of the capability priority mode in Embodiment 1 of this invention, and the wind speed of an indoor unit. It is a figure which shows the relationship between the temperature difference at the time of the quietness priority mode in Embodiment 1 of this invention, and the wind speed of an indoor unit.

  Hereinafter, embodiments of an air conditioner according to the present invention will be described in detail with reference to the drawings. The present invention is not limited to the embodiments described below. In the following drawings, the size of each component may be different from that of an actual apparatus.

Embodiment 1 FIG.
FIG. 1 is a system configuration diagram according to Embodiment 1 of the present invention. The air conditioner 1 includes an outdoor unit 10 disposed outside the air-conditioned space 100, a first indoor unit 20 disposed in the air-conditioned space 100, and a second indoor unit 30. . That is, a plurality of indoor units are arranged in one conditioned space 100. Each of the first indoor unit 20 and the second indoor unit 30 is a multi-connectable air conditioner, and is connected to one outdoor unit 10. In the first embodiment, the capacity (kW) of the first indoor unit 20 is higher than the capacity of the second indoor unit 30. When the user operates the remote controller 21, the operation mode of the first indoor unit 20, the air volume of the air blown from the air outlet, the wind direction, and the like can be selected. Similarly, when the user operates the remote controller 31, the operation mode of the second indoor unit 30, the air volume of the air blown from the air outlet, the wind direction, and the like can be selected. The operation modes include a cooling operation mode and a heating operation mode, and further include a quietness priority mode and a capability priority mode. Silentness priority mode is an operation mode that prioritizes quietness over capacity when operating indoor units, and air conditioning prioritizes capacity over silence when operating indoor units. It is an operation mode.

  FIG. 2 is a schematic diagram of a refrigerant circuit of the air-conditioning apparatus according to Embodiment 1 of the present invention. In the air conditioner 1, the first indoor unit 20, the second indoor unit 30, and the outdoor unit 10 are connected by a pipe A and a pipe B. The first indoor unit 20 and the second indoor unit 30 are connected in parallel. The pipe A and the pipe B are refrigerant pipes that conduct the refrigerant (heat source side refrigerant).

  In the outdoor unit 10, a compressor 11, a flow switching device 12 such as a four-way valve, a heat source side heat exchanger 13, and an accumulator 14 are connected by piping. The compressor 11 sucks in the refrigerant, compresses the refrigerant to be brought into a high-temperature and high-pressure state, and conveys the refrigerant to the refrigerant circuit. The compressor 11 is configured by, for example, an inverter compressor capable of capacity control. The flow path switching device 12 switches the refrigerant flow in the heating operation mode and the refrigerant flow in the cooling operation mode. The heat source side heat exchanger 13 functions as an evaporator in the heating operation mode, functions as a radiator in the cooling operation mode, and performs heat exchange between the air supplied by the outdoor unit fan 15 and the refrigerant. The accumulator 14 is provided on the suction side of the compressor 11 and stores excess refrigerant due to a difference between the heating operation mode and the cooling operation mode, and excess refrigerant due to a transient change in operation.

  In the first indoor unit 20, the use side heat exchanger (indoor side heat exchanger) 22 and the expansion device 23 are connected in series, and in the second indoor unit 30, the use side heat exchanger 32 and the expansion device 33 are connected to each other. Connected in series. The first indoor unit 20 and the second indoor unit 30 function as a condenser in the heating operation mode and as an evaporator in the cooling operation mode, respectively, and air and refrigerant supplied by the indoor unit fan 24 or the indoor unit fan 34, respectively. Heat is exchanged between the two, and air for cooling or heating for supplying to the air-conditioning target space is generated. The expansion devices 23 and 33 have functions as a pressure reducing valve and an expansion valve, and expand the refrigerant by depressurizing, for example, an electronic expansion valve whose opening degree can be variably controlled. . In the air conditioner 1, two indoor units, the first indoor unit 20 and the second indoor unit 30, are connected in parallel, but this is an example, and the number of indoor units is limited to two. Not.

  FIG. 3 is a control block diagram of the air-conditioning apparatus according to Embodiment 1 of the present invention. The outdoor unit control means 16 of the outdoor unit 10 controls the outdoor unit 10, controls the air conditioner 1 as a whole, and controls the air conditioning of the conditioned space 100. The indoor unit control means 25 of the first indoor unit 20 is sent information such as the operation mode, temperature, wind speed of the air blown from the outlet, and the wind direction set by the user with the remote controller 21. Further, the indoor unit control means 25 receives the indoor temperature of the conditioned space 100 detected by the temperature sensor 26 and the position information of the presence of a person in the conditioned space 100 detected by the human sensor 27. The indoor unit control means 25 controls the indoor unit fan 24 and the wind direction adjusting means 28 based on these pieces of information. Similarly, the indoor unit control means 35 of the second indoor unit 30 receives information such as the operation mode, temperature, wind speed of the air blown from the outlet, and the wind direction set by the user with the remote controller 31. Further, the indoor unit control means 35 receives the indoor temperature of the conditioned space 100 detected by the temperature sensor 36 and the position information of the presence of a person in the conditioned space 100 detected by the human sensor 37. The indoor unit control means 35 controls the indoor unit fan 34 and the wind direction adjusting means 38 based on these pieces of information.

  FIG. 4 is a diagram showing the relationship between the temperature difference in the capacity priority mode and the wind speed of the indoor unit in Embodiment 1 of the present invention. FIG. 4A is a chart showing the temperature change and the wind speed in association with each other. FIG. 4B is a table showing the relationship between the wind speed switching condition and the set wind speed. In both the first indoor unit 20 and the second indoor unit 30, during the automatic wind speed operation when the capacity priority mode is selected, the wind speed switching is executed according to the switching conditions shown in these drawings. The 1st indoor unit 20 and the 2nd indoor unit 30 are 4 speed models which can control the wind speed of the air which blows off from a blower outlet in four steps, a strong wind, a medium wind, a weak wind, and silence. As shown in FIG. 4, the range of the temperature difference between the set temperature set by the user by the remote controllers 21 and 31 (hereinafter, set temperature) and the indoor temperature of the air-conditioned space 100 detected by the temperature sensors 26 and 36 is 4. They are grouped into stages of control levels and associated with four stages of wind speed. A temperature difference between the set temperature and the indoor temperature of the air-conditioned space 100 detected by the temperature sensors 26 and 36 is denoted by ΔT1. When the temperature difference ΔT1 is lower than 1 ° C., the first indoor unit 20 and the second indoor unit 30 are operated quietly, and when the temperature difference ΔT1 is 2 ° C. or higher and lower than 3 ° C., the first indoor unit 20 and the second indoor unit 30 are operated with low wind. When the temperature difference ΔT1 is 4 ° C. or higher and lower than 5 ° C., it is operated with medium wind, and when the temperature difference ΔT1 is low with 6 ° C. or higher, it is operated with strong wind.

  Furthermore, the first indoor unit 20 and the second indoor unit 30 have a temperature difference ΔT1 of 1 ° C. or higher and lower than 2 ° C., a temperature difference ΔT 1 of 3 ° C. or higher and lower than 4 ° C., and a temperature difference ΔT 1 of When the temperature is 5 ° C. or higher and lower than 6 ° C., it is selected with the previous notch, in other words, with the wind speed used so far. For example, when it is confirmed that the temperature difference ΔT1 has reached 3 ° C. as a result of the temperature difference ΔT1 gradually increasing, operation is performed with a weak wind that is the previous notch until the temperature difference ΔT1 reaches 4 ° C. . On the other hand, if it is confirmed that the temperature difference ΔT1 has reached 4 ° C. as a result of the temperature difference ΔT1 becoming gradually smaller, the temperature difference ΔT1 is operated with the weak wind that is the previous notch until the temperature difference ΔT1 reaches less than 3 ° C. The When the temperature difference ΔT1 is 3 ° C. or higher and lower than 4 ° C., the vehicle may be operated with a weak wind or may be operated with a medium wind depending on the operating conditions up to that point. The same applies when the temperature difference ΔT1 is 1 ° C. or higher and lower than 2 ° C., and when the temperature difference ΔT1 is 5 ° C. or higher and lower than 6 ° C.

  FIG. 5 is a diagram showing the relationship between the temperature difference in the silent priority mode and the wind speed of the indoor unit in Embodiment 1 of the present invention. FIG. 5A is a chart showing the temperature change and the wind speed in association with each other. FIG. 5B is a table showing the relationship between the wind speed switching condition and the set wind speed. In both the first indoor unit 20 and the second indoor unit 30, the wind speed switching is executed according to the switching conditions shown in these drawings during the automatic wind speed operation when the silent priority mode is selected. FIG. 5 shows a wind speed selection table and a wind speed switching condition table used in the automatic wind speed operation in the silent priority mode according to the first embodiment of the present invention. FIG. 4A is a chart showing the temperature change and the wind speed in association with each other. FIG. 4B is a table showing the relationship between the wind speed switching condition and the set wind speed. These tables are executed when the quietness priority mode is selected in both the first indoor unit 20 and the second indoor unit 30 which are the above-described four-speed models. When the silent priority mode is selected, it is required to suppress noise generated during driving. Therefore, in the silent priority mode, even if the temperature difference ΔT1 is 5 ° C. or more, strong wind is not selected and operation is performed with medium wind. Other than that, the wind speed is selected under the same conditions as in the above-described ability-oriented mode.

  Here, the control of the outdoor unit control means 16 in the first embodiment will be described. The control level to which the temperature difference between the room temperature of the air-conditioned space 100 detected by the temperature sensor 26 of the first indoor unit 20 and the set temperature set by the remote controller 21 belongs, and is detected by the temperature sensor 36 of the second indoor unit 30. The control level of the temperature difference between the room temperature of the conditioned space 100 and the set temperature set by the remote controller 31 is compared. And the indoor unit control means of the said indoor unit is controlled so that the wind speed of an indoor fan is made high about the indoor unit with the smaller temperature range of a control level.

  For example, the temperature difference between the room temperature of the air-conditioned space 100 detected by the temperature sensor 26 of the first indoor unit 20 and the set temperature set by the remote controller 21 is 4 ° C., and is detected by the temperature sensor 36 of the second indoor unit 30. The temperature difference between the room temperature of the conditioned space 100 and the set temperature set by the remote controller 31 is 2 ° C. In this case, as shown in FIG. 5, the indoor unit fan 24 of the first indoor unit 20 is operated with medium wind, and the indoor unit fan 34 of the second indoor unit 30 is operated with low wind. The outdoor unit control means 16 controls the indoor unit control means 35 so that the indoor unit fan 34 of the second indoor unit 30 is operated with medium wind. Further, the temperature difference between the room temperature of the air-conditioned space 100 detected by the temperature sensor 26 of the first indoor unit 20 and the set temperature set by the remote controller 21 is detected by the temperature sensor 36 of the second indoor unit 30. The temperature difference between the room temperature of the conditioned space 100 and the set temperature set by the remote controller 31 is 4 ° C. In this case, as shown in FIG. 5, the indoor unit fan 24 of the first indoor unit 20 is operated with a weak wind, and the indoor unit fan 34 of the second indoor unit 30 is operated with a medium wind. The outdoor unit control means 16 controls the indoor unit control means 25 so that the indoor unit fan 24 of the first indoor unit 20 is operated with medium wind.

  When the control level to which the temperature difference in the first indoor unit 20 belongs and the control level to which the temperature difference in the second indoor unit 30 belong are the same control level, the outdoor unit control means 16 The noise level when the indoor unit fan 24 is operated with the noise level of the 30 indoor unit fans 34 selected in the first indoor unit 20 corresponding to the highest wind speed among the selectable control levels. The wind speed of the indoor unit fan 34 is increased so that the level increases.

  For example, the temperature difference between the room temperature of the air-conditioned space 100 detected by the temperature sensor 26 of the first indoor unit 20 and the set temperature set by the remote controller 21 and the temperature sensor 36 of the second indoor unit 30 are detected. It is assumed that the temperature difference between the room temperature of the air-conditioned space 100 and the set temperature set by the remote controller 31 is 6 ° C. or more. In this case, the outdoor unit control means 16 increases the wind speed of the indoor unit fan 34, but controls so that the noise level does not exceed the noise level when the indoor unit fan 24 is operated with medium wind.

  As described above, according to the first embodiment, when the quietness priority mode is set in the first indoor unit 20 and the second indoor unit 30, the first indoor unit 20 and the second indoor unit The control level of each temperature difference of the machine 30 is compared. And it controls so that the wind speed of an indoor fan is made high about the indoor unit with the smaller temperature range of a control level. That is, while the first indoor unit 20 and the second indoor unit 30 are each operated in the quiet priority mode, the temperature difference is calculated by the sum of the capacities of the first indoor unit 20 and the second indoor unit 30. Driven to shrink. Therefore, it is possible to approach the set temperature required by the user in a short time while maintaining quietness. That is, the user is not given unpleasant feelings such as noise, draft feeling, fluttering of documents, hair turbulence, and the like, and no unpleasant feeling in terms of temperature. As a result, a comfortable air-conditioned space can be provided to the user.

Embodiment 2. FIG.
Next, a second embodiment according to the present invention will be described. In the second embodiment, an indoor unit having the same capacity as that of the first indoor unit 20 and the second indoor unit 30 is used. In Embodiment 2, the system configuration, the configuration of the refrigerant circuit, the configuration of the control block, and the wind speed are the same except that the capability of the first indoor unit 20 and the capability of the second indoor unit 30 are the same. Since the switching conditions are the same as those in the first embodiment described with reference to FIGS. 1 to 5, the description thereof is omitted.

  In the second embodiment, when the quietness priority mode is set in the first indoor unit 20 and the second indoor unit 30, the outdoor unit control means 16 includes the human sensors 27 and 27 in the conditioned space 100. The wind speed of the indoor unit fan of the indoor unit in which the presence of a person is detected is increased. As shown in FIG. 1, in the air-conditioned space 100, when a person is present near the first indoor unit 20 rather than the second indoor unit 30, the presence sensor 27 detects the presence of the person. Is done. In this case, the outdoor unit control means 16 instructs the indoor unit control means 35 of the second indoor unit 30 to maintain the current wind speed of the indoor unit fan 34 as it is, and the indoor unit control unit 35 of the first indoor unit 20 The unit control means 25 is instructed to increase the wind speed of the indoor unit fan 24. According to this Embodiment 2, when the capability of the 1st indoor unit 20 and the 2nd indoor unit 30 is the same, it can make a sensible temperature favorable, maintaining a quietness. Therefore, even if the capabilities of the first indoor unit 20 and the second indoor unit 30 are the same, there is no discomfort such as noise, draft feeling, fluttering of documents, hair turbulence, and the like, and There is no discomfort in terms of temperature. As a result, a comfortable air-conditioned space can be provided to the user.

  The control by the outdoor unit control means 16 in the first embodiment and the second embodiment described above may be controlled to be executed for a predetermined time. In that case, the predetermined time is measured after the quietness priority mode is set.

  In the first and second embodiments, the outdoor unit control unit 16 of the outdoor unit 10 controls the indoor unit control unit 25 of the first indoor unit 20 and the indoor unit control unit 35 of the second indoor unit 30. However, it is not limited to this. Control means for controlling the indoor unit control means 25 and the indoor unit control means 35 may be provided separately.

  DESCRIPTION OF SYMBOLS 1 Air conditioning apparatus, 10 outdoor unit, 16 outdoor unit control means, 20 1st indoor unit, 21 remote control, 22 utilization side heat exchanger, 23 expansion apparatus, 24 indoor fan, 25 indoor unit control means, 26 temperature sensor, 27 Human sensor, 28 Wind direction adjusting means, 30 Second indoor unit, 31 Remote control, 32 User side heat exchanger, 33 Throttle device, 34 Indoor fan, 35 Indoor unit control means, 36 Temperature sensor, 37 Human sensor, 38 Wind direction means, 100 Air-conditioned space.

Claims (7)

A plurality of indoor units having indoor fans for supplying air to the air-conditioned space;
A temperature sensor that detects the indoor temperature of the air-conditioned space;
A human sensor that detects the presence of people in the air-conditioned space;
Air conditioning control means for controlling the air conditioning of the entire air conditioned space by controlling the plurality of indoor units,
The air-conditioning control means is actually selected from a plurality of control levels of the wind speed of the indoor fan that are defined in stages corresponding to the level of the temperature difference between the indoor temperature detected by the temperature sensor and the set temperature. Selecting a control level suitable for eliminating the temperature difference, and controlling the wind speed of the indoor fans of the plurality of indoor units according to the selected control level,
When the plurality of indoor units are set with a quietness priority mode, which is an operation mode in which the quietness is given priority over the capacity during operation of the indoor unit, the air conditioning control unit is configured to select a predetermined level among the plurality of control levels. Control the indoor fan by selecting a control level lower than the control level corresponding to the wind speed of the plurality of wind speeds, and the actual temperature by the sum of the capacity of each indoor fan of the plurality of indoor units Controlling the indoor fans of each of the plurality of indoor units so that the difference is reduced ,
When the capacity of at least one indoor unit among the plurality of indoor units is different from the capacity of other indoor units, and the actual temperature difference level of each of the plurality of indoor units is different, The air conditioning control unit is configured to increase the wind speed of the indoor fan for the indoor unit that has a smaller actual temperature difference than the other indoor units among the plurality of indoor units. The level of the temperature difference in the indoor unit having a relatively high capacity is higher than the level of the temperature difference in the indoor unit having a relatively low capacity, and the wind speeds of the indoor units are different. ,
The air conditioning apparatus according to claim 1 , wherein the air conditioning control unit increases the wind speed of the indoor fan of the indoor unit having a relatively low capacity. When the level of the temperature difference in the indoor unit having a relatively low capacity is higher than the level of the temperature difference in the indoor unit having a relatively high capacity, and the wind speeds of the indoor units are different. ,
The air conditioning apparatus according to claim 1 or 2 , wherein the air conditioning control means increases the wind speed of the indoor fan of the indoor unit having relatively high capacity. The capacity of at least one indoor unit among the plurality of indoor units is different from that of other indoor units, and the level of the temperature difference in the indoor unit with relatively low capability and the capability is relatively high. When the level of the temperature difference in the indoor unit is the same,
The air conditioning control unit, the indoor fan noise level of capability is relatively low the indoor unit, the capacity is relatively high the indoor unit, the highest among the selectable the control level in quietness priority mode to raise the noise level when the control level corresponding to the wind speed the indoor fan is selected is operated as a limit claim 1, ability to increase the wind speed of the indoor fan of relatively low the indoor unit The air conditioning apparatus according to any one of to 3 . A plurality of indoor units having indoor fans for supplying air to the air-conditioned space;
A temperature sensor that detects the indoor temperature of the air-conditioned space;
A human sensor that detects the presence of people in the air-conditioned space;
Air conditioning control means for controlling the air conditioning of the entire air conditioned space by controlling the plurality of indoor units,
The air-conditioning control means is actually selected from a plurality of control levels of the wind speed of the indoor fan that are defined in stages corresponding to the level of the temperature difference between the indoor temperature detected by the temperature sensor and the set temperature. Selecting a control level suitable for eliminating the temperature difference, and controlling the wind speed of the indoor fans of the plurality of indoor units according to the selected control level,
When the plurality of indoor units are set with a quietness priority mode, which is an operation mode in which the quietness is given priority over the capacity during operation of the indoor unit, the air conditioning control unit is configured to select a predetermined level among the plurality of control levels. Control the indoor fan by selecting a control level lower than the control level corresponding to the wind speed of the plurality of wind speeds, and the actual temperature by the sum of the capacity of each indoor fan of the plurality of indoor units Controlling the indoor fans of each of the plurality of indoor units so that the difference is reduced ,
When the plurality of indoor units have the same capability, the air conditioning control unit increases the wind speed of the indoor fan of the indoor unit in which the presence of a person is detected by the human sensor in an air-conditioned space. The air conditioning apparatus according to any one of claims 1 to 5 , wherein the air conditioning control unit controls a wind speed of each of the indoor fans of the plurality of indoor units until a predetermined period elapses. The air conditioner according to claim 6 , wherein the predetermined period is measured from the time when the quietness priority mode is started.

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