JP6794865B2 - Air conditioner - Google Patents

Description

The present invention relates to an air conditioner, and more specifically, relates to a function of automatically switching an operation mode and performing a trial run.

Conventionally, in an air conditioner system, the technique shown in Patent Document 1 is disclosed as a test run in which an operation mode is switched. In this air conditioner system, an indoor unit and an outdoor unit are connected by communication, and further, the air conditioner system and a remote monitoring terminal are connected via a network.

Then, in the remote monitoring terminal, for example, as a condition for executing the test run at the turn of the season, a period during which the test run can be executed, an execution time, an execution time, an operation mode, and the like are stored in advance as an execution schedule. The remote monitoring terminal monitors the conditions of this execution schedule and instructs the air conditioner system to execute a test run when the conditions become feasible.

The conditions of this execution schedule are set manually, and it takes a lot of time and effort to determine various conditions. For example, regarding the period during which a test run can be performed, it is necessary to set a period during which the indoor unit does not need to be operated due to the changing seasons, but since this period varies depending on the climate of the year, it is necessary to confirm in advance with a weather forecast or the like. was there. Further, regarding the execution time, it is necessary to confirm the operating state of the indoor unit and set the time zone during which the operation of the indoor unit to be tested is stopped.

In the above-mentioned air conditioner system, a specialized operator is assigned to the remote monitoring terminal, and since this operator sets and executes the test run conditions and grasps the result, it does not burden the user.
However, there are the following problems in performing such a test run method as it is in a household air conditioner.
Since the air conditioner for home use does not have a remote monitoring terminal and no specialized operator, the above-mentioned execution schedule setting must be performed by the user himself, which is a laborious task for the user. For this reason, the user is left untested and will perform the first test run in the summer or winter season when the air conditioner is used, as required by changes in weather conditions.

In this case, the operation is started after switching the operation mode (cooling / heating) used in the previous season. For this reason, the air-conditioned operation in the switched operation mode has no operation record for a period of more than half a year, and a failure may be discovered at this point.
As mentioned above, when the air-conditioning operation is required due to changes in weather conditions, a large number of users will start the operation all at once. If a failure is discovered at this time, there is a problem that the repair waiting period becomes long due to the overlap of repair time with other users, and the air conditioner cannot be used when necessary.

Japanese Unexamined Patent Publication No. 2011-89751 (page 6, FIG. 1)

An object of the present invention is to solve the above-mentioned problems, automatically carry out a test run in which the operation mode is changed at the turn of the season, and reliably notify the user of the result.

In order to solve the above-mentioned problems, the invention according to claim 1 of the present invention
It is an air conditioner that has an outside air temperature detector that detects the outside air temperature and switches between heating operation and cooling operation.
The air conditioner is
A notification unit that notifies the user of the status of the air conditioner,
During the operation stop period, which is the period between the period in which the user performs the cooling operation and the period in which the heating operation is performed, a test run in an operation mode different from the operation mode operated before the operation stop period is automatically executed. An automatic test run means for notifying the user of the test run result via the notification unit is provided.
The automatic test run means includes an operation stop period detecting means for detecting that the operation is within the operation stop period, and an operation stop period detecting means.
The air conditioner is provided with an unoperated detection means for detecting that the air conditioner has not been operated for a predetermined time.
The automatic test run means is characterized in that the test run is executed within the operation stop period and when the air conditioner has not been operated for a predetermined time.

Further, the invention according to claim 2 of the present invention
The operation stop period detecting means determines that the operation stop period is within the operation stop period when the temperature detected by the outside air temperature detection unit becomes equal to or less than the average temperature threshold value which is a predetermined air temperature value. It is a feature.

Further, the invention according to claim 3 of the present invention
The automatic test run means includes a start time determining means for determining a start time for starting the test run in a day.
The automatic test run means is characterized in that the test run is executed at the start time.

By using the above means, according to the air conditioner according to the present invention, in the operation stop period, a test run is performed in which the operation mode is changed to a different operation mode from the operation mode operated before the operation stop period is entered, and the result is obtained by the user. By reliably notifying the air conditioner, it is possible to detect a failure of the air conditioner before the season when the operation of the air conditioner is required, so that even if there is a failure, the failure can be repaired before the season.

It is a block diagram which shows the Example of the air conditioner according to this invention. It is a functional block diagram of the automatic test run part by this invention. It is explanatory drawing which shows the annual outside temperature change and each signal of the automatic test run part by this invention. It is explanatory drawing which shows each signal of the automatic test run part by this invention and the change of the outside air temperature in one day.

Hereinafter, embodiments of the present invention will be described in detail as examples based on the accompanying drawings.

FIG. 1 is a block diagram showing an embodiment of an air conditioner according to the present invention. The illustration and description of the refrigerant circuit, fan motor, etc., which are not related to the present invention, will be omitted.
In FIG. 1, the air conditioner 1 includes an indoor unit 2 and an outdoor unit 10 that are communicated with each other. The outdoor unit 10 includes an outdoor unit control unit 11 that controls the entire outdoor unit 10 and an outdoor air temperature detection unit 12 that detects the outside air temperature and outputs it to the outdoor unit control unit 11.

On the other hand, the indoor unit 2 has a person detection unit 4 that outputs a person's presence by detecting a person using a thermopile or the like, and infrared rays that output the operation start / stop and operation mode of the air conditioner 1 as an operation signal. A remote controller 9, an infrared remote controller 3, a remote controller 3 that receives infrared operation signals output by the infrared remote controller 9, a clock unit 5 that outputs time, a storage unit 7 that stores an operation mode, a set temperature, and the like, and an outdoor unit control unit. The indoor unit control unit 8 that communicates with the 11 and controls the entire indoor unit 2 and the indoor unit control unit 8 informs the user of the state of the air conditioner 1 by voice synthesis or an LED lamp (not shown). The notification unit 6 is provided. An automatic test run unit (automatic test run means) 30 according to the present invention is provided inside the indoor unit control unit 8.

With the above configuration, the automatic test run unit 30 refers to the presence of a person in the room via the person detection unit 4 and the current time from the clock unit 5, and further stores the outside air temperature data input via the outdoor unit 10. It can be stored in the storage unit 7 and referred to from the storage unit 7. Further, the automatic test run unit 30 calculates the non-operation time of the infrared remote controller 9 from the time when the operation of the air conditioner 1 is stopped from the stop timing of the air conditioner 1 and the time input from the clock unit 5 via the remote controller receiver 3. You can also do it.

FIG. 2 is a functional block diagram of the automatic test run unit 30 for realizing the present invention. The test run in this embodiment is to switch the heating / cooling operation mode to actually operate the air conditioner 1 and to self-check a four-way valve, an electronic expansion valve, a fan motor, etc. (not shown) in the process. is there. Further, in this embodiment, the period between the period in which the user performs the cooling operation and the period in which the heating operation is performed due to the change of seasons is defined as the operation stop period.

The automatic test run unit 30 detects that the start time determination unit (start time determination means) 31 that determines the time to start the test run in the day and the operation stop period during which the air conditioning operation is not performed at the turn of the season The operation of the operation stop period detection unit (operation stop period detection means) 33, the test run start management unit (test run start management means) 34 that manages the start of the trial run, and the air conditioner 1 are stopped for a certain period of time. That is, an unoperated detection unit (non-operation detection means) 32 that detects that the product has not been operated for a certain period of time, an AND circuit (logical product means) 35, and a test run unit that actually executes a test run and outputs the result (a test run unit). It includes a test run means (36) and a result notification unit (result notification means) 37 that notifies the user of the start of the test run and the result of the test run.

Then, the operation stop period detection unit 33 inputs hourly outside air temperature data via the outdoor unit 10 and stores it in the storage unit 7 as the temperature for one day. Then, when the maximum temperature in the stored daily air temperature becomes equal to or higher than the average air temperature threshold with respect to the average temperature threshold (22.5 ° C) which is a predetermined temperature, the operation stop period detection unit 33 is used. Alternatively, when the maximum temperature of the day becomes less than the average temperature threshold, the level of the operation stop period detection signal is inverted and output to the trial operation start management unit 34 as being within the operation stop period.

The operation stop period detection unit 33 determines that it is the operation stop period when the season changes from winter to summer when the maximum daily temperature exceeds the average temperature threshold, and outputs the operation stop period detection signal from the low level. When the maximum temperature of the day falls below the average temperature threshold, it is judged that it is the operation stop period when the season changes from summer to winter, and the operation stop period detection signal is set from high level to low. Make it a level.

When the level of the operation stop period detection signal is inverted, the test run start management unit 34 to which the operation stop period detection signal is input changes the detection permission signal from the low level to the high level and outputs the detection permission signal to the non-operation detection unit 32. When a high-level detection permission signal is input, the non-operation detection unit 32 measures the time during which the operation of operating the air conditioner 1 is not continuously performed by using the clock unit 5. Then, when the measured non-operation time reaches 240 hours (10 days), the non-operation detection unit 32 changes the test run permission signal from the low level to the high level and outputs it to the AND circuit 35. The test run permission signal is also output to the test run start management unit 34, and the test run start management unit 34 to which the high-level test run permission signal is input prepares for the next operation by setting the detection permission signal to a low level. If the clock unit 5 is not provided, a timer (not shown) may be used.

A start timing signal for permitting the start of the test run is input to the AND circuit 35 from the start time determination unit 31 described later, and when both the start timing signal and the test run permission signal reach a high level, the AND circuit 35 is subjected to the test run. The test run start signal is output to the unit 36 from a low level to a high level. The test run unit 36 to which the test run start signal is input starts the test run. The test run unit 36 outputs the test run start notification data as a state signal when the test run is started, and the test run result notification data as a state signal when the test run is completed, respectively, to the result notification unit 37. When the test run is started, the test run unit 36 outputs the test run operation signal from the low level to the high level, and notifies the indoor unit control unit 8 that the test run is in progress.

When the data of the test run start notification is input, the result notification unit 37 "starts the test run for maintenance. We will inform you of the result of the test run after the end. ] And voice output via the notification unit 6. In addition, when the result notification unit 37 inputs the data of the test run result notification, "the test run has been completed" according to the contents. The result is XX. To stop this audio output, press the stop key on the remote control. ] Audio output is repeated continuously. In addition, ○○ is "normal" or "malfunction. Heating operation is not possible. A result such as "Error number is 105" is inserted.

Further, since the result notification unit 37 continuously repeats this voice output until the stop key of the infrared remote controller 9 is pressed, the result is surely obtained after returning home even if the user is absent during the test run. You can know. An LED lamp or the like may be used instead of the audio output. Further, when an external device such as a smartphone is connected to the air conditioner 1 by communication, the external device may be notified instead of the voice output or the notification by the LED lamp.
Further, the result notification unit 37 is input with an operation signal (notification release signal) corresponding to the pressing of the stop key transmitted by the remote controller 9, and when this signal is input, the voice output is stopped.

On the other hand, when starting the test run, the start time determination unit 31 specifies the time zone of the test run so that the user does not feel uncomfortable due to the test run. The reason for this is, for example, the suppression of sleep disturbance by a test run in the middle of the night. Furthermore, in order for the user to confirm the failure that cannot be found by the air conditioner itself by the test run, the test run should be carried out in the daytime when the user is at home as much as possible. For example, odors and abnormal noises can only be discriminated by the user. The start time determination unit 31 is not always necessary. When the start time determination unit 31 is omitted, the voice output of the result notification unit 37 may be stopped, and the result may be notified only by the LED lamp instead.
If it is convenient to perform a test run at night depending on the lifestyle of the user, the time for starting the test run may be set in advance as described later.

Therefore, the start time determination unit 31 recognizes the daytime or home time and outputs a start timing signal. In this embodiment, the daytime maximum temperature detection unit (daytime maximum temperature detection means) 31a, the person detection unit (person detection means) 31b, and the daytime detection unit (daytime detection unit) correspond to the hardware provided in the air conditioner 1. The operation of the three detection units of the daytime detection means) 31c will be described, but the start time determination unit 31 may include at least one of these detection units.

The daytime maximum temperature detection unit 31a acquires the outside air temperature data every hour via the outdoor unit 10 and stores it in the storage unit 7, and when the temperature changes from an upward trend to a downward trend, before it changes to a downward trend. When the temperature currently obtained is lower than the predetermined temperature difference threshold (3 ° C) or more, the temperature before the downward trend is determined as the maximum temperature of the day, and the maximum daytime temperature which is a pulse signal is determined. Output a signal. Generally, the maximum daily temperature occurs from 12:00 to 14:00, so it is estimated that one hour after this time is from 13:00 to 15:00 (daytime afternoon).

The daytime maximum temperature signal is output as a start timing signal from the start time determination unit 31. In addition, depending on the weather, the difference between the maximum temperature and the minimum temperature of the day may be small, and the temperature difference threshold may not be able to detect the afternoon in the daytime well. In such a case, the re-judgment may be repeated from the next day until a temperature difference threshold value or more is detected.

Next, the person detection unit 31b will be described. When the person detection unit 4 is provided as in this embodiment, the presence of the user can be detected. Therefore, when the person detection unit 31b detects the presence of the user through the person detection unit 4, a high-level person Output the detection signal. The person detection signal is output as a start timing signal from the start time determination unit 31.

Next, the daytime detection unit 31c will be described. The daytime detection unit 31c constantly reads the current time data from the clock unit 5, and outputs a time signal, which is a pulse signal, at a predetermined time (12:00). The time signal is output as a start timing signal from the start time determination unit 31.

The start time determination unit 31 may use any one of the three detection units described above. For example, the human detection unit 31b and the daytime detection unit 31c are used in combination, and the start time is determined from 9 o'clock. If the occupancy is detected by 15:00, the start timing signal may be output.

Next, the operation of the automatic test run unit 30 will be described with reference to FIGS. 1 to 4. FIG. 3 shows a graph showing the change in the monthly average temperature in Tokyo in 2014, a graph showing the actual outside temperature (maximum daily temperature) in the year when the air conditioner 1 was operated, and the automatic test run unit 30. It is explanatory drawing which shows the signal in.
The horizontal axis of FIG. 3 is time. Regarding the vertical axis of FIG. 3, FIG. 3 (1) is a graph showing the annual average monthly outside temperature change, FIG. 3 (2) is the period of the operation mode used by the user, and FIG. 3 (3) is one day. An annual graph showing a change in maximum temperature is shown, FIG. 3 (4) shows an operation stop period detection signal, FIG. 3 (5) shows a detection permission signal, and FIG. 3 (6) shows a test run permission signal. Note that t0 to t16 are dates and times.

In FIG. 3 (1), the leftmost side shows May, and as it goes to the right side, June, July ... March, and the rightmost side is April. The vertical axis is the temperature, and the two solid lines indicate the maximum temperature on the upper side and the minimum temperature on the lower side. In the Northern Hemisphere, as shown in this graph, August has the highest temperature peak, and January has the lowest temperature peak.

Therefore, as shown in Fig. 3 (2), the cooling operation is performed during the summer period from mid-June to the end of September when the average maximum temperature exceeds 25 ° C, and the average maximum temperature is 20 ° C or less from late October to late April. It is expected that each user will select and use the heating operation in the winter period until. The other period is an operation stop period that does not require cooling or heating. Since the above period is expected to change depending on the region and climate variability, it will be described as an example of the usage pattern of the air conditioner due to seasonal changes in this embodiment.

On the other hand, the temperature at which the user needs cooling or heating, that is, the feeling of being hot or cold, does not seem to differ greatly from person to person. Therefore, the intermediate temperature (22.5 ° C) in the range of 20 ° C to 25 ° C, which is considered to require no cooling or heating, is considered as the representative of the outage period (center of the period), and the intermediate temperature is defined as the average temperature threshold. Define. Then, it is possible to confirm whether or not there is a problem with the air conditioner 1 before the next season by performing a trial run in the operation mode that is operated in the summer / winter period next to the operation stop period during this operation stop period.

When the user is hot, the average temperature threshold value is set to, for example, 20 ° C., and when the user is cold, the average temperature threshold value is set to, for example, 25 ° C., which is stored in the storage unit 7 as a variable setting value. You may leave it. Further, the average temperature threshold value may be determined by estimating the heat / cold from the set temperature. For example, the above-mentioned average temperature threshold value may be determined as hot when the set temperature set in the past in the cooling operation is 26 ° C. or lower, and cold when the set temperature is 22 ° C. or higher in the heating operation in the past.

As shown in FIG. 3 (3), the operation stop period detection unit 33 changes the operation stop period detection signal from the low level to the high level when the maximum temperature on May 16 of t11 exceeds the average temperature threshold value, and t15. When the maximum temperature of the day falls below the average temperature threshold on October 14, the operation stop period detection signal is changed from high level to low level. The test run start management unit 34 to which the operation stop period detection signal is input outputs the detection permission signal from the low level to the high level at t11 and t15, and the non-operation detection unit 32 to which this is input outputs the detection permission signal to the high level. If the infrared remote control 9 is not operated during the non-operation period (240 hours) from the time when the signal is set to, that is, if the air conditioner 1 is not operated, t12 (May 26) and t16 (October 24). The test run permission signal is changed from low level to high level (test run permission) and output.

If the air conditioner 1 is operated during the non-operation period, the non-operation detection unit 32 waits for the non-operation period to elapse after the last operation of the air conditioner 1 is stopped, and then issues a test run permission signal. Output from low level to high level. That is, the fact that the air conditioner 1 is not operated during the non-operation period indicates that the temperature is comfortable for the user, and it is expected that the operation is stopped during neither the cooling operation nor the heating operation. Once the test run permission signal reaches the high level, it remains at the high level until the test run is started.

Next, the operation of the automatic test run unit 30 after the test run permission signal becomes high level and the test run is permitted will be described with reference to FIG.
FIG. 4 is an explanatory diagram showing changes in the outside air temperature on the day following May 26, when the non-operation detection unit 32 raised the test run permission signal to a high level at t12, and each signal of the automatic test run unit according to the present invention. is there.
The horizontal axis of FIG. 4 is time. Regarding the vertical axis of FIG. 4, FIG. 4 (1) shows a graph showing a daily change in outside air temperature, FIG. 4 (2) shows a daytime maximum temperature signal, and FIG. 4 (3) shows a person detection signal. 4) is a time signal, FIG. 4 (5) is a trial run permission signal, FIG. 4 (6) is a trial run start signal, FIG. 4 (7) is a trial run operation signal, and FIG. 4 (8) is a status signal. FIG. 4 (9) shows the notification release signals, respectively. In addition, t20 to t34 are times.

As shown in FIG. 4 (1), the daytime temperature gradually rises from the minimum temperature of 15 ° C. at 6 am on t21 to the maximum temperature around 13:00 on t27, and then 22 ° C. at around 14:00 on t28. It has decreased to the above, and it is gradually decreasing during the day. The daytime maximum temperature detection unit 31a outputs a daytime maximum temperature signal, which is a pulse signal, at t28, which is a temperature difference threshold (3 ° C.) or more lower than that at t27.

On the other hand, the non-operation detection unit 32 sets the test run permission signal to a high level on May 26 as described above, and on May 27 shown in FIG. 4 (1), the test run is performed as shown in FIG. 4 (5). The authorization signal remains at a high level. As a result, since the two input terminals of the AND circuit 35 both reach a high level at t28, the AND circuit 35 outputs a test run start signal which is a pulse signal at t28.

The test run unit 36 to which the test run start signal is input starts the test run at t28. At the same time, the test run unit 36 changes the test run operation signal from a low level to a high level and outputs it to the indoor unit control unit to notify that the test run is in progress. Further, the test run unit 36 issues a test run start notification instruction to the result notification unit 37 as a status signal. When this instruction is input, the result notification unit 37 outputs a voice to the effect that the test run described above is started.

On the other hand, since the storage unit 7 stores the driver mode previously operated by the indoor unit control unit 8, the test run unit 36 switches the operation mode different from the previous time, that is, the cooling operation / heating operation, prior to the start of the test run. After that, the trial run is started. At the same time, the test run unit 36 starts checking each unit to confirm that there is no problem in operation.

The details of the check are not described here, but there is a method of checking a four-way valve (not shown) by checking the temperature of a heat exchanger (not shown) of the indoor unit 2, for example. Specifically, when the previous operation was a heating operation and the test operation this time was performed with cooling, the heat exchanger temperature of the indoor unit 2 becomes lower than the room temperature at the start of operation as the operation time elapses. Should be. If the four-way valve does not switch according to the operation mode, a test run will be performed in the heating operation during the previous operation, and the heat exchanger of the indoor unit 2 will rise above the room temperature at the start of operation over time. Therefore, it is judged that the four-way valve is abnormal.

Further, it is checked whether or not the value of the current flowing through the fan motor (not shown) is within a predetermined range and whether or not the specified rotation speed is maintained, and the normality / abnormality of the fan motor is determined. After checking each unit in this way, the test run unit 36 stops the test run and outputs the test run result notification data as a status signal to the result notification unit 37.

As described above, the result notification unit 37 outputs the voice according to the contents of the test run result notification data. The voice output of the test run result notification is repeatedly output, and continues until the user who confirms this presses the stop key of the infrared remote controller 9. When the stop key is pressed, the remote controller 9 outputs a stop key operation signal (notification release signal), and this signal is output to the result notification unit 37 via the remote controller receiving unit 3 and the control unit 8.
Therefore, even if the user is absent during the test run, the result of the test run can be surely confirmed.

The above is the description when the daytime maximum temperature detection unit 31a is used as the start time determination unit 31.
On the other hand, the person detection unit 31b monitors the presence of the room based on the data obtained from the person detection unit 4, and is in the period of t22 to t23, t25 to t30, and t32 to t34 as shown in FIG. A person detection signal indicating a room is output at a high level. In this case, since both the human detection signal and the test run permission signal are at a high level at t25, the AND circuit 35 outputs a test run start signal at t25. Since the subsequent operation is the same as the operation after t28, the description thereof will be omitted.

Next, the case where the daytime detection unit 31c is used will be described. Since the daytime detection unit 31c sets in advance that noon (12:00) is the time to start the test run, the time is always read from the clock unit 5 and when the time is 12 o'clock, the time signal which is a pulse signal is transmitted to the circuit 35. Output to. In this case, since both the human detection signal and the test run permission signal are at high levels at t26, the AND circuit 35 outputs the test run start signal at t26. Since the subsequent operation is the same as the operation after t28, the description thereof will be omitted.

As described above, during the operation stop period of the air conditioner 1 at the turn of the season, the automatic test run unit 30 automatically switches the operation mode used in the previous operation to the operation mode used in the next season and automatically performs the test run. By surely notifying the user of the result, it is possible to detect the failure of the air conditioner before the season when the operation of the air conditioner 1 is required. Therefore, even if there is a failure, the failure occurs before the season. Can be repaired.

In this embodiment, the air conditioner 1 including the human detection unit 4, the clock unit 5, and the outside air temperature detection unit 12 is described, but the present invention is not limited to this, and any one of them is used. If it is provided, the start time determination unit 31 can be configured, so that the same effect can be obtained.
Further, in this embodiment, the automatic test run unit 30 is described as hardware, but the present invention is not limited to this, and may be realized by software.

1 Air conditioner 2 Indoor unit 3 Remote control receiver 4 Person detection unit 5 Clock unit 6 Notification unit 7 Storage unit 8 Indoor unit control unit 9 Infrared remote control 10 Outdoor unit 11 Outdoor unit control unit 12 Outdoor temperature detection unit 30 Automatic test run unit ( Automatic test run means)
31 Start time determination unit (start time determination means)
31a Daytime maximum temperature detection unit (daytime maximum temperature detection means)
31b Person detection unit (person detection means)
31c Daytime detection unit (daytime detection means)
32 Non-operation detection unit (non-operation detection means)
33 Operation stop period detection unit (operation stop period detection means)
34 Test run start management unit (test run start management means)
35 AND circuit (logical product means)
36 Test run section (test run means)
37 Result notification unit (result notification means)

Claims (3)

It is an air conditioner that has an outside air temperature detector that detects the outside air temperature and switches between heating operation and cooling operation.
The air conditioner is
A notification unit that notifies the user of the status of the air conditioner,
During the operation stop period, which is the period between the period in which the user performs the cooling operation and the period in which the heating operation is performed, a test run is automatically performed in an operation mode different from the operation mode operated before the operation stop period is entered. An automatic test run means for notifying the user of the test run result via the notification unit is provided.
The automatic test run means includes an operation stop period detecting means for detecting that the operation is within the operation stop period, and an operation stop period detecting means.
The air conditioner is provided with an unoperated detection means for detecting that the air conditioner has not been operated for a predetermined time.
The automatic test run means is an air conditioner that executes the test run within the operation stop period and when the air conditioner has not been operated for a predetermined time. The operation stop period detecting means determines that the operation stop period is within the operation stop period when the temperature detected by the outside air temperature detection unit becomes equal to or less than the average temperature threshold value which is a predetermined air temperature value. The air conditioner according to claim 1, wherein the air conditioner is characterized. The automatic test run means includes a start time determining means for determining a start time for starting the test run in a day.
The air conditioner according to claim 1 or 2, wherein the automatic test run means executes the test run at the start time.

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