AU2009207168B2

AU2009207168B2 - Air conditioner managing apparatus

Info

Publication number: AU2009207168B2
Application number: AU2009207168A
Authority: AU
Inventors: Satoshi Hashimoto; Takashige Kai; Koji Mishima; Atsushi Nishino; Naotake Shimozu; Satoru Tamba
Original assignee: Daikin Industries Ltd
Current assignee: Daikin Industries Ltd
Priority date: 2008-01-24
Filing date: 2009-01-20
Publication date: 2011-10-27
Anticipated expiration: 2029-01-20
Also published as: CN101925785A; JP4396779B2; US20110057044A1; WO2009093552A1; KR20100113128A; AU2009207168A1; EP2249093A4; CN101925785B; BRPI0906370A2; JP2009210253A; EP2249093A1

Abstract

In facilities such as an office building or other buildings in which a plurality of indoor units are installed, provided is an air conditioner management apparatus capable of facilitating the work of specifying indoor units having problems and checking details. The air conditioner management apparatus (40) comprises: a storage unit for storing operation data of many indoor units (12aa-12ad, 12ba-12bd, 12ca-12cd, …); a first screen generation unit (34g) for generating, based on the operation data, a first screen that can visualize a plurality of indoor units having problems from among the target indoor units; a second screen generation unit (34h) for generating a second screen that can visualize the operation data of one specific indoor unit; and a display switching unit (34i) for, when one of the indoor units having problems and displayed on the first screen is selected and an input of a predetermined button is received, switching from the first screen to the second screen displaying the selected indoor unit.

Description

AIR CONDITIONER MANAGING APPARATUS TECHNICAL FIELD The present invention relates to an air conditioner managing apparatus. BACKGROUND ART 5 Conventionally, a multi-type air conditioner, which comprises at least one outdoor unit and a plurality of indoor units, is often used in properties such as office buildings. In addition, to facilitate the management of a plurality of indoor units in such a property, a management system is employed (refer to Patent Document 1: Japanese Unexamined Patent Application Publication No. 2003-302092) that is provided with an air conditioner managing ) apparatus, which is for collecting information from the air conditioners in the same property, and that centrally manages the indoor units in the property. However, in such a case, an administrator of the property must check the information collected by the air conditioner managing apparatus about all of the indoor units so that he or she can specify an indoor unit with some kind of problem and check the details 5 thereof. As a result, the information about the indoor units with no problems and whose information does not need to be checked is also checked, which makes the work troublesome. A need therefore exists to provide an air conditioner managing apparatus that, in a property such as an office building wherein a plurality of indoor units are installed, facilitates the work of specifying an indoor unit with a problem and checking the details thereof. 0 SUMMARY OF THE INVENTION An air conditioner managing apparatus according to a first aspect of the present invention comprises a storage unit, an identifying unit, a first screen generating unit, a second screen generating unit, and a display switching unit. The storage unit accumulates operation data about numerous indoor units. The identifying unit identifies, based on the operation 25 data, a plurality of the indoor units with a problem for any prescribed viewpoints among the numerous indoor units. The first screen generating unit generates a first screen that includes a distribution diagram that indicates the distribution of the indoor units with regard to a prescribed reference value based on the problem severity of the identified indoor units. The second screen generating unit generates a second screen wherein the operation data related to 30 one specific indoor unit among the identified indoor units can be visually verified. The display switching unit-when one indoor unit of the plurality of indoor units with the problem displayed in the first screen is selected and an input of a prescribed button is accepted-switches to the display of the second screen related to the selected indoor unit. 5552439-2 1 In the air conditioner managing apparatus according to the first aspect, operation data about numerous indoor units is accumulated, the indoor units with a problem for any prescribed viewpoints are identified based on the operation data. The plurality of viewpoints includes excessive consumption of electric power, long-time operation, reduced i comfort, and the like. A first screen is generated that includes a distribution diagram that indicates the distribution of the indoor units with regard to a prescribed reference value based on the problem severity of the identified indoor units. In addition, a second screen is generated wherein the operation data related to one specific indoor unit among the identified indoor units can be visually verified. Furthermore, when one indoor unit of the plurality of ) indoor units with the problem displayed in the first screen is selected and an input of a prescribed button is accepted, the display is switched to the second screen related to the single selected indoor unit. Thereby, it is possible to easily specify an indoor unit with a problem based on the operation data related to a plurality of indoor units; furthermore, detailed information can be 5 easily checked. Also, the distribution of the identified indoor units based on problem severity is displayed. Thereby, it is possible to visually grasp the number of indoor units with a problem and the severity of that problem. An air conditioner managing apparatus according to a second aspect of the present invention is the air conditioner managing apparatus according to the first aspect of the present 0 invention, wherein the first screen switchably displays, by viewpoint, the plurality of the indoor units with the problem. In the air conditioner managing apparatus according to the second aspect, the indoor units with the problem are identified based on each viewpoint of a plurality of viewpoints, and the indoor units with the problem are displayed, switchably by viewpoint, on the first 25 screen. The plurality of viewpoints includes excessive consumption of electric power, long time operation, reduced comfort, and the like. Thereby, it is possible to easily check on, by viewpoint, the indoor units with a problem. An air conditioner managing apparatus according to a third aspect of the present 30 invention is the air conditioner managing apparatus according to the second aspect of the present invention, wherein the second screen switchably displays, based on the operation data, an operation status display screen that indicates an operation status of one indoor unit and an occurrence day display screen that indicates the problem occurrence day of the one indoor unit. 5552439-2 2 In the air conditioner managing apparatus according to the third aspect, the operation data display screen displays the operation data of an identified indoor unit, and the occurrence day display screen displays the problem occurrence day. Thereby, it is possible to easily check the problem occurrence day and the operation data for the problem occurrence day. An air conditioner managing apparatus according to a fourth aspect of the present invention is the air conditioner managing apparatus according to the third aspect of the present invention, wherein the second screen displays a graph that aggregates the operation data in accordance with the plurality of viewpoints. ) In the air conditioner managing apparatus according to the fourth aspect, the second screen displays a graph that aggregates the operation data of one indoor unit in accordance with the plurality of viewpoints. Thereby, it is possible to visually verify the operation data simultaneously for the plurality of viewpoints; for example, it is possible to grasp the occurrence status (e.g., time 5 slot, severity, etc.), the cause, the correlation, and the like for a plurality of problems. An air conditioner managing apparatus according to a fifth aspect of the present invention is the air conditioner managing apparatus according to the fourth aspect of the present invention, wherein the operation status includes an average operation status of the one indoor unit during a prescribed interval and the operation status of the one indoor unit during 0 a prescribed day within the prescribed interval; and the second screen displays, side by side, a graph that indicates the average operation status during the interval and a graph that indicates the operation status for the prescribed day. In the air conditioner managing apparatus according to the fifth aspect, the second screen displays, side by side, a graph that indicates the average operation status during the 25 interval and a graph that indicates the operation status for the prescribed day. Thereby, it is possible to easily compare the average operation status during the interval and the operation status for the prescribed day; for example, it is possible to grasp the problem occurrence frequency, the problem severity for one day, and the like. An air conditioner managing apparatus according to a sixth aspect of the present 30 invention is the air conditioner managing apparatus according to any one aspect of the third through fifth aspects of the present invention, wherein the second screen displays a method of correcting the problem based on the operation status. In the air conditioner managing apparatus according to the sixth aspect, the indoor unit with a problem and the method of correcting that indoor unit's problem are displayed, 5552439-2 3 which makes it possible to effectively manage the indoor unit. An air conditioner managing apparatus according to a seventh aspect of the present invention is the air conditioner managing apparatus according to the seventh aspect of the present invention and further comprises an input unit that inputs an identification condition i for identifying the plurality of the indoor units with the problem. In the air conditioner managing apparatus according to the seventh aspect, the plurality of the indoor units with the problem is identified based on an identification condition input by the input unit. Thereby, it is possible to flexibly meet the user's needs. ) <Advantageous Effects of Invention> In the air conditioner managing apparatus according to the first aspect of the present invention, it is possible to easily specify the indoor units with a problem based on the operation data related to a plurality of indoor units; furthermore, detailed information can be easily checked. Also, it is possible to visually grasp the number of indoor units with a 5 problem and the severity of that problem. In the air conditioner managing apparatus according to the second aspect of the present invention, it is possible to check on, by viewpoint, the indoor units with a problem. In the air conditioner managing apparatus according to the third aspect of the present invention, it is possible to easily check the problem occurrence day and the operation data for D the problem occurrence day. In the air conditioner managing apparatus according to the fourth aspect of the present invention, it is possible to visually verify the operation data simultaneously for the plurality of viewpoints; for example, it is possible to grasp the occurrence status (e.g., time slot, severity, etc.), the cause, the correlation, and the like for a plurality of problems. 25 In the air conditioner managing apparatus according to the fifth aspect of the present invention, it is possible to easily compare the average operation data during the interval and the operation data for the prescribed day; for example, it is possible to grasp the problem occurrence frequency, the problem severity for one day, and the like. In the air conditioner managing apparatus according to the sixth aspect of the present 30 invention, it is possible to effectively manage the air conditioner. In the air conditioner managing apparatus according to the seventh aspect of the present invention, In the air conditioner managing apparatus according to the seventh aspect of the present invention, it is possible to flexibly meet the user's needs. 5552439-2 4 BRIEF DESCRIPTION OF THE DRAWINGS FIG 1 shows the overall configuration of an air conditioner managing system according to the present embodiment. FIG 2A shows the configuration of an air conditioner managing apparatus i according to the present embodiment. FIG 2B shows a data structure of an operation data storage area in a local controller and a comprehensive managing apparatus. FIG 2C shows a data structure of an area for storing electric power consumption values (i.e., total electric power consumption values) in the local controller and the ) comprehensive managing apparatus. FIG 2D shows a data structure of an area for storing electric power consumption values (i.e., electric power consumption values) in the comprehensive managing apparatus. FIG 2E shows a data structure of an area for storing average values. FIG 3 is a flowchart that shows a method of calculating a long-time operation 5 occurrence day count using the air conditioner managing apparatus according to the present embodiment. FIG 4 is a flow chart that shows a method of calculating a reduced comfort time using the air conditioner managing apparatus according to the present embodiment. FIG 5 is an example of an identification screen related to excessive electric power 0 consumption displayed by the air conditioner managing apparatus according to the present embodiment. FIG 6 is an example of an identification screen related to long-time operation displayed by the air conditioner managing apparatus according to the present embodiment. FIG 7A is an example of an identification screen related to reduced comfort 25 displayed by the air conditioner managing apparatus according to the present embodiment. FIG 7B is an example of an identification screen related to reduced comfort displayed by the air conditioner managing apparatus according to the present embodiment. FIG 7C is an example of an identification screen related to reduced comfort displayed by the air conditioner managing apparatus according to the present embodiment. 30 FIG 8A is an example of a detailed screen related to operation status displayed by 5552439-2 5 the air conditioner managing apparatus according to the present embodiment. FIG 8B is an example of a detailed screen related to operation status displayed by the air conditioner managing apparatus according to the present embodiment. FIG 9 is an example of a detailed screen related to problem occurrence days 5 displayed by the air conditioner managing apparatus according to the present embodiment. FIG 10 is an example of a settings screen of identification conditions displayed by the air conditioner managing apparatus according to the present embodiment. FIG 11 shows the configuration of the air conditioner managing system according to a modified example (2) of the present embodiment. 10 FIG 12 shows a startup screen displayed by the air conditioner managing apparatus according to a modified example (8) of the present embodiment. FIG 13 shows a settings screen of the identification conditions displayed by the air conditioner managing apparatus according to the modified example (8) of the present embodiment. 15 BEST MODE FOR CARRYING OUT THE INVENTION <First Embodiment> The following text explains an air conditioner managing system 100 according to a first embodiment of the present invention, referencing the drawings. <Overall Configuration> 20 FIG 1 shows the configuration of the air conditioner managing system of the present embodiment in a property 1. The property 1 is a building, such as an office building or a tenant building, wherein a plurality of air conditioners 10a, 10b, 10c, ... and an air conditioner managing apparatus 40 are installed. Each of the air conditioners 10a, 10b, 10c, ... is a multi-type air conditioner that comprises one outdoor unit and a plurality of indoor 25 units connected to the outdoor unit. In the air conditioner managing system according to the present embodiment, a power supply 60 is connected to outdoor units 11a, 11b, 11c, ... , and electric power from the power supply 60 is supplied to the air conditioners 10a, 10b, 10c, ... via electric power supply lines. An electric power meter 70, which is provided in the electric power supply line 30 that connects the power supply 60 and the outdoor units 11a, 11b, 11c., measures the electric power supplied to the air conditioners 10a, 10b, 10c, ... (i.e., the total electric power consumption). The air conditioner managing apparatus 40 according to the present embodiment identifies-among numerous indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... installed 6 in the property 1-those indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... wherein prescribed problems are occurring and, furthermore, displays the details of these problems for each of the indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, .... The prescribed problems are excessive consumption of electric power, long-time operation, and reduced comfort. 5 The following text explains the configuration of the air conditioner managing apparatus 40 and each of the problems the air conditioner managing apparatus 40 manages; furthermore, the explanation is based on an illustrative example of a management screen that shows how the air conditioner managing apparatus 40 manages each of the problems. <Configuration of the Air Conditioner Managing Apparatus> 10 The air conditioner managing apparatus 40 comprises a local controller 20, which is connected to the outdoor units 11a, 1lb, 1lc, ... , and a comprehensive managing apparatus 30, which is connected to the local controller 20. The local controller 20 acquires operation data about the plurality of indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... via the outdoor units 11a, 11b, l1e, .... The comprehensive managing apparatus 30 comprehensively 15 manages the operation data the local controller 20 acquires. Here, operation data is data related to either an operation history or an operation state. The data related to the operation history refers to information about a power supply ON/OFF state, a thermostat ON/OFF state, an operation mode (i.e., a cooling mode, a heating mode, a ventilating mode, and the like), a set temperature, an indoor temperature (i.e., an inlet temperature), and the like of the indoor 20 units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... connected to the outdoor units 11a, lb, 1lc, .... The data related to the operation state are values detected by various sensors attached to the air conditioners 10a, 10b, 10c, .... Based on the operation data, it is possible to obtain information about operation time, a degree of opening of an indoor expansion valve, and the like of each of the indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, .... Furthermore, the 25 operation time in the present embodiment is, specifically, the thermostat ON time of the indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, .... Here, the thermostat ON time is the time during which the indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... supply cooling or heat. The following text explains the configurations of the local controller 20 and the comprehensive managing apparatus 30, referencing FIG 2A. 30 (i) Configuration of the Local Controller 20 The local controller 20 principally comprises a communication unit 21, a storage unit 22, and a control unit 23. (Communication Unit) The communication unit 21 is an input-output port that sends signals to and receives 7 signals from the air conditioners 10a, 10b, 10c, ... and the comprehensive managing apparatus 30. (Storage Unit) The storage unit 22 has an operation data storage area 22a and an electric power 5 consumption value storage area 22b. The operation data acquired by an information acquiring unit 23a, which is discussed below, from the air conditioners 10a, 10b, 10c, ... is stored in the operation data storage area 22a. Specifically, the operation data storage area 22a is a tabular database, as shown in FIG 2B, and is provided with fields related to "equipment ID," "time of day," 10 "power supply ON/OFF state," "thermostat ON/OFF state," "operation mode," "set temperature," "indoor temperature," and "humidity." In addition, although not illustrated in FIG 2B, fields related to the degree of opening of an expansion valve, the values detected by various sensors are also provided. The operation data storage area 22a has storage capacity capable of storing operation data of a prescribed interval only (in the present embodiment, 30 15 min.), and operation data outside that interval are successively deleted with every new acquisition of operation data. Values related to the total electric power consumption (i.e., total electric power consumption values) of the air conditioners 10a, 10b, 10c, ... measured by the electric power meter 70 are stored in the electric power consumption value storage area 22b. Specifically, 20 the electric power consumption value storage area 22b is also a tabular database, as shown in FIG 2C, and is provided with fields related to "time of day," and "total electric power consumption." Furthermore, in addition to the abovementioned area, the storage unit 22 has an area that stores a management program capable of being read and executed by the control unit 23, 25 which is discussed below. (Control Unit) The control unit 23 principally comprises the information acquiring unit 23a and a transmission unit 23b. The information acquiring unit 23a acquires at prescribed intervals (in the present embodiment, every minute) operation data from the air conditioners 10a, 10b, 30 10c, ... via the communication unit 21. The transmission unit 23b transmits at prescribed intervals (in the present embodiment, every minute) information stored in the operation data storage area 22a and the electric power consumption value storage area 22b to the comprehensive managing apparatus 30 via the communication unit 21. (ii) Configuration of the Comprehensive Managing Apparatus 30 8 The comprehensive managing apparatus 30 principally comprises a communication unit 31, an input unit 32, a storage unit 33, a control unit 34, and a display unit 35. (Communication Unit) The communication unit 31 is an input-output port that sends signals to and receives 5 signals from the local controller 20. (Input Unit) The input unit 32 accepts instructions from a user. Upon acceptance of an instruction by the input unit 32, a process corresponding to that instruction is executed by the comprehensive managing apparatus 30 and/or by the local controller 20 via the 10 comprehensive managing apparatus 30. For example, if the input unit 32 accepts an instruction to turn ON the power supply of the air conditioners 10a, 10b, 10c, ... , then a power supply ON instruction is transmitted to the air conditioners 10a, 10b, 10c, ... via the local controller 20. In addition, upon acceptance of an input of a prescribed interval by the input unit 32, an aggregation interval, which is the target interval during which a process is [5 performed by the comprehensive managing apparatus 30 (discussed below), is determined. Furthermore, upon the user's inputting of an instruction to a screen displayed by the display unit 35 (discussed below), the instruction is accepted by the input unit 32. (Storage Unit) The storage unit 33 has an operation data storage area 33a, an electric power 20 consumption value storage area 33b, an average value storage area 33c, a reference value storage area 33d, a corrective action data storage area 33e, and a determined value storage area 33f. The operation data storage area 33a stores operation data of the air conditioners 10a, 10b, 10c, ... transmitted from the local controller 20. The operation data storage area 33a is a 25 tabular database, as in FIG 2B, and is provided with fields related to "equipment ID," "time of day," "power supply ON/OFF state," "thermostat ON/OFF state," "operation mode," "set temperature," "indoor temperature," and "humidity." Information related to electric power consumption is stored in the electric power consumption value storage area 33b. Specifically, the information related to the electric 30 power consumption includes a value related to the total electric power consumption of the air conditioners 10a, 10b, 10c, ... transmitted from the local controller 20 (i.e., the total electric power consumption value) and a value related to the electric power consumption of each of the indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... calculated by an apportioning unit 34a (i.e., the electric power consumption values), which is discussed below. The total electric 9 power consumption value is stored in a format identical to that of the total electric power consumption value stored in the electric power consumption value storage area 22b discussed above. Namely, it is stored in a tabular database, as shown in FIG 2C, and the database is provided with fields related to "time of day," and "total electric power consumption." The 5 values related to the electric power consumption of each of the indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... (i.e., the electric power consumption values) are also stored in a tabular database, as shown in FIG 2D, and the database is provided with fields related to "equipment ID," "electric power consumption," and "time." An average of the electric power consumption values, which is calculated by an 10 average value calculating unit 34b (discussed below), is stored in the average value storage area 33c. The average value storage area 33c is likewise a tabular database, as shown in FIG 2E, and is provided with fields related to "equipment ID," "electric power consumption," and "time." A reference value of the electric power consumption values, which is determined by 15 a reference value determining unit 34c (discussed below), is stored in the reference value storage area 33d. Data related to a plurality of corrective actions, which is selected by a corrective action selecting unit 34f (discussed below), is stored in the corrective action data storage area 33e. 20 The prescribed value that the input unit 32 accepts from the user is stored in the determined value storage area 33f. (Control Unit) The control unit 34 comprises the apportioning unit 34a, the average value calculating unit 34b, the reference value determining unit 34c, an identifying unit 34d, a 25 correcting unit 34e, the corrective action selecting unit 34f, a first screen generating unit 34g, a second screen generating unit 34h, and a display switching unit 34i. The apportioning unit 34a apportions the total electric power consumption value of the air conditioners 10a, 10b, 10c, ... stored in the electric power consumption value storage area 33b among the operation data stored in the operation data storage area 33a and 30 calculates the electric power consumption of each of the indoor units 12aa-12ad, 12ba 12bd, 12ca-12cd, .... Specifically, as shown in Japanese Unexamined Patent Application Publication No. H5-157336, the total electric power consumption is apportioned in accordance with information such as the degree of opening of the expansion valve of each of the indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, and the electric power consumption of 10 each of the indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... is calculated. Furthermore, the electric power consumption values calculated by the apportioning unit 34a are stored in the electric power consumption value storage area 33b discussed above. Based on the information stored in the operation data storage area 33a and the 5 electric power consumption value storage area 33b, the average value calculating unit 34b calculates the average electric power consumption per day of all of the indoor units 12aa 12ad, 12ba-12bd, 12ca-12cd, ... over the prescribed interval accepted by the input unit 32 discussed above. The average value calculated by the average value calculating unit 34b is stored in the average value storage area 33c discussed above. 10 Based on the information stored in the operation data storage area 33a and the electric power consumption value storage area 33b, the reference value determining unit 34c determines the reference value for determining which of the indoor units 12aa-12ad, 12ba 12bd, 12ca-12cd, ... are consuming a large amount of electric power. This will be explained in detail using the <Target Problem and Determination Reference> column, which is 15 discussed below. Furthermore, the reference value determined by the reference value determining unit 34c is stored in the reference value storage area 33d discussed above. The identifying unit 34d identifies the indoor units 12aa-12ad, 12ba-12bd, 12ca 12cd, ... whose electric power consumption exceeds the reference value. Specifically, the identifying unit 34d compares the average of the electric power consumption per day of each 20 of the indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... over the prescribed interval accepted by the input unit 32 discussed above with the reference value per day over the prescribed interval determined by the reference value determining unit 34c and identifies those indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... whose electric power consumption exceeds the reference value. 25 In accordance with an instruction accepted by the input unit 32, the correcting unit 34e corrects the identification result produced by the identifying unit 34d. Here, the correcting unit 34e performs its correction on the identification results for electric power consumption and reduced comfort. Correcting the identification result for electric power consumption means correcting the electric power consumption value of each of the indoor 30 units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... , taking into consideration the air conditioning capacity of the identified indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, .... Here, the air conditioning capacity is the horsepower or the capacity (kW), or the like of the indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, .... In accordance with the instruction, the correcting unit 34e divides the electric power consumption value of each of the indoor units 12aa-12ad, 11 12ba-12bd, 12ca-12cd, ... by the horsepower. In the present embodiment, the correction of electric power consumption is performed by default. Correcting the identification result for reduced comfort involves ranking the indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, taking into consideration the rate of occurrence of reduced comfort. In accordance with an 5 instruction, the correcting unit 34e ranks each of the indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... taking into consideration the reduced comfort occurrence rate. Specifically, the equation reduced comfort time x (reduced comfort time + operation time) is used to calculate the reduced comfort time taking into consideration the occurrence rate. The corrective action selecting unit 34f selects an appropriate corrective action for 10 each problem taking into consideration the operation data, such as the set temperature and the operation time, of the indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... identified by the identifying unit 34d. Specifically, corrective actions include reexamining the set temperature, reexamining the operation schedule, performing a filter inspection, and the like. Based on the various values stored in the storage unit 33, the first screen generating 15 unit 34g generates a first screen for displaying the information about the identified indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... on the display unit 35. The first screen is a screen capable of switching the viewpoint and the indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... identified by that viewpoint. In detail, tabs that display the identification result of each viewpoint of the plurality of viewpoints (i.e., excessive electric power consumption, 20 long-time operation, and reduced comfort) are formed in the first screen. In each tab, the details of the corresponding identification result are displayed using a table and a scatter diagram. The first screen corresponds to an identification screen, which is discussed below, and is a screen wherein all of the identified indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... can be visually verified. 25 The second screen generating unit 34h generates a second screen, wherein the operation data related to a specific indoor unit of the identified indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... can be visually verified. In detail, the second screen is a screen capable of switching between a tab that displays an operation status and a tab that displays problem occurrence days, both of which are based on the operation data related to the specific 30 indoor unit. In the tab that displays the operation status, a graph is displayed that indicates the average operation status for the interval and the operating status for one day of the specific indoor unit. In the tab that displays the problem occurrence days, a table is displayed that indicates the problem occurrence days related to the plurality of viewpoints (i.e., excessive electric power consumption, long-time operation, and reduced comfort) of the specific indoor 12 unit. In the second screen, a graph that aggregates operating data by the plurality of viewpoints is displayed. The second screen corresponds to a detailed screen, which is discussed below. In accordance with an instruction that the input unit 32 accepts from the user, the 5 display switching unit 34i switches the display from the first screen, which is displayed by the display unit 35, to the second screen, which displays the details of the indoor unit selected on the first screen. Namely, in accordance with an instruction from the user, the display switching unit 34i switches the screen displayed by the display unit 35 from the identification screen, which displays the identification results of all of the indoor units, to the detailed 10 screen of the single indoor unit selected on the identification screen. The display unit 35 is a display screen for displaying the information received by the comprehensive managing apparatus 30, displaying the first screen, displaying the second screen, and the like. The information displayed by the display unit 35 will be explained in detail in the <Illustrative Example of Management Screen and Operation> section. 15 <Target Problem and Determination Reference> The following text explains the prescribed problems, namely, excessive electric power consumption, long-time operation, and reduced comfort, of the indoor units identified by the air conditioner managing apparatus 40 according to the present embodiment. (i) Excessive Electric Power Consumption 20 The excessive consumption of electric power means that the electric power consumption value is large. The air conditioner managing apparatus 40 determines the reference value related to excessive electric power consumption, identifies the indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... that have consumed amounts of electric power that exceed the reference value, and furthermore displays those identified indoor units 12aa 25 12ad, 12ba-12bd, 12ca-12cd, ... in descending order based on their electric power consumption value. Furthermore, if their electric power consumption value has been corrected by the correcting unit 34e discussed above, then the order is determined based on the value corrected by the correcting unit 34e. In the present embodiment, the air conditioner managing apparatus 40 uses the 30 equation y = k-a-x to determine the reference value for determining which of the indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... is consuming excessive electric power. Here, y is the reference value of the electric power consumption over the prescribed interval, x is an average operation time during the interval, k is a prescribed value determined when identification conditions are set, and a is the slope of the average electric power. The average 13 electric power is the straight line approximation calculated using the least squares method for the average electric power consumption during the interval and the average operation time during the interval of each of the indoor units. Furthermore, when the average electric power consumption during the interval is given as y(i) <i = 1, 2, ... n (n: number of indoor units)> 5 and the average operation time during the interval is given as x(i) <i = 1, 2, ... n (n: number of indoor units)>, the approximation curve is expressed by y = a-x, wherein the slope a is derived based on the equation below in which the squared error is minimized. (Equation 1) n 10 (ii) Long-Time Operation Long-time operation refers to operation wherein a cumulative operation time per day exceeds a prescribed determination value. The prescribed determination value is a prescribed value set by the user. In the present embodiment, the air conditioner managing apparatus 40 identifies those indoor units whose long-time operation occurrence day count during the 15 target aggregation interval is greater than or equal to one day and furthermore displays the identified indoor units in descending order based on their long-time operation occurrence day count. The method of calculating the long-time operation occurrence day count, as shown in FIG 3, is first to calculate the one day cumulative operation time (hrs) (i.e., a step Si), and next to determine whether the cumulative operation time is greater than or equal to the 20 prescribed determination value (i.e., a step S2). Subsequently, in step S2, if the cumulative operation time is greater than or equal to the determination value, then one day is added to the long-time operation occurrence day count (i.e., a step S3). In step S2, if the cumulative operation time is less than the determination value, then the day count is not incremented. (iii) Reduced Comfort 25 Reduced comfort refers to cases wherein an inlet temperature does not reach a temperature set in the indoor unit and to a state wherein a value of the difference between the average inlet temperature per hour and the average set temperature per hour is greater than or equal to the prescribed determination value. In the present embodiment, the air conditioner managing apparatus 40 identifies those indoor units wherein the reduced comfort state was 30 greater than or equal to one hour during the target aggregation interval and furthermore displays the identified indoor units in order of the length of time spent in the reduced comfort 14 state. Furthermore, if the correcting unit 34e discussed above made a correction, then the order is determined based on the corrected value by the correcting unit 34e. In the method of calculating the reduced comfort time, as shown in FIG 4, first, the method determines whether the thermostat ON time continued for 60 min. or longer (i.e., a step S11). If the 5 thermostat ON time did continue for 60 min. or longer, then it means that the state wherein the inlet temperature did not reach the set temperature also continued for 60 min. or longer. In the step S11, if the thermostat ON time did continue for 60 min. or longer, then the method determines whether the difference between the inlet temperature and the set temperature is greater than or equal to the prescribed determination value (i.e., a step S12). In the step S12, 10 if the difference between the inlet temperature and the set temperature is greater than or equal to the determination value, then one hour is added to the reduced comfort time (i.e., a step S13). <Illustrative Example of Management Screen and Operation> The following text explains the screens displayed by the display unit 35 of the air 15 conditioner managing apparatus 40. Furthermore, in FIG 5 through FIG 10, what is explained in the present embodiment as the electric power consumption value is indicated as the electric power consumption. FIG 5 shows an identification screen wherein the indoor units 12aa-12ad, 12ba 12bd, 12ca-12cd, ... with a problem are identified. As indicated by a symbol 501, the 20 identification screen identifies those indoor units with a problem from the three viewpoints of excessive electric power consumption, long-time operation, and reduced comfort discussed above. In the identification screen shown in FIG 5, the excessive electric power consumption tab is selected, and the indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... whose electric power consumption values are large are identified. Here, as indicated by a symbol 502, 25 aggregation is performed for the period beginning on August 1, 2007 (Wed.) and ending on August 31, 2007 (Fri.). The aggregation interval, which is set by default to the most recent two weeks, can be changed by the user. Furthermore, when identifying the indoor units 12aa 12ad, 12ba-12bd, 12ca-12cd, ... , the user can select a target group (refer to a symbol 503). Here, if the average electric power consumption per day during the aggregation interval of 30 the indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... that belong to the selected group exceeds the reference value, then those indoor units that exceed the reference value are identified by the identifying unit 34d and displayed in a table 504 and a graph 505. In the table 504, the names of the identified indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... are displayed in descending order of their electric power consumption values. In addition, the 15 electric power consumption per day and the operation time per day corresponding to the names of the indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... are displayed. In the graph 505, each of the identified indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... is plotted according to its electric power consumption and its operation time, thereby revealing the 5 distribution of the identified indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, .... In addition, in the graph 505, the average values calculated by the average value calculating unit 34b are indicated by a straight line (in the graph, the average electric power) and the reference value determined by the reference value determining unit 34c is indicated by a broken line (in the graph, the determination reference). At the location indicated by a symbol 10 506, there is a checkbox for indicating whether to correct the electric power consumption value based on the horsepower. As shown in FIG. 5, the checkbox is by default set to ON, and therefore the correcting unit 34e performs the correction. Accordingly, the results indicated in the table 504 are displayed based on the values wherein the electric power consumption value was corrected based on horsepower. Furthermore, by setting the checkbox 15 of the symbol 506 to OFF, an instruction to that effect is input to the input unit 32, which disables the correction made by the correcting unit 34e. Namely, the identification results are displayed based on electric power consumption values that were not corrected based on the horsepower. Furthermore, if a specific indoor unit of the indoor units 12aa-12ad, 12ba 12bd, 12ca-12cd, ... is selected in the table 504, then the corresponding indoor unit of the 20 indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... in the graph 505 is color highlighted. In FIG 6, the tab in the identification screen of FIG 5 has been switched (refer to a symbol 601) and now the indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... that were determined to exhibit long-time operation are displayed. A table 602 displays the indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... identified as having exhibited long-time operation 25 are displayed in descending order of the long-time operation occurrence day count, wherein the name of each of the indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... , the long-time operation occurrence day count, and the average operating time per day during the aggregation interval are displayed. In a graph 603, the identified indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... are plotted, wherein the ordinate is the occurrence day count and 30 the abscissa is the average operating time per day during the aggregation interval. In FIG 7A, the tab in the identification screen of FIG 5 or FIG 6 has been switched (refer to a symbol 701), and now the indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... determined to exhibit reduced comfort are displayed. In a table 702, the indoor units 12aa 12ad, 12ba-12bd, 12ca-12cd, ... identified as exhibiting reduced comfort are displayed in 16 descending order of the average amount of time of reduced comfort per day during the aggregation interval, wherein the name of each of the indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... , the average amount of time of reduced comfort per day during the aggregation interval, and the average operating time per day during the aggregation interval 5 are displayed. In a graph 703, the identified indoor units 12aa-12ad, 12ba-12bd, 12ca 12cd, ... are plotted, wherein the ordinate is the average time of reduced comfort per day during the aggregation interval and the abscissa is the average operating time per day during the aggregation interval. Like FIG 7A, FIG 7B is a screen that displays the indoor units 12aa-12ad, 12ba 10 12bd, 12ca-12cd, ... determined to exhibit reduced comfort; however, as indicated by a symbol 709 and a symbol 704A in the lower part of the screen, it is possible to correct the identification results. Checking the checkbox of the symbol 709 makes it possible to display all of the indoor units of the target group. In addition, checking the checkbox of the symbol 704A (refer to a symbol 704B in FIG 7C) displays the identification results based on values 15 wherein the reduced comfort is weighted by the occurrence rate. Furthermore, in the lower part of the identification screen, a Display Details button (i.e., a symbol 705), a Set Identification Conditions button (i.e., a symbol 706), a Print Screen button (i.e., a symbol 707), and a Close button (i.e., a symbol 708) are provided. Pressing the Print Screen button (i.e., the symbol 707) prints the displayed screen, and pressing the Close 20 button (i.e., the symbol 708) closes the identification screen. If a specific indoor unit is selected in any of the tables 504, 602, 702 of the identification screen and the Display Details button (i.e., the symbol 705) is pressed, then the input unit 32 accepts an instruction from the user, and the display switching unit 34i switches the display from the identification screen to the details screen, which displays the detailed information of the specific, single indoor unit 25 that was selected. The following text explains the details screen that displays the detailed information, referencing FIG 8A, FIC 8B, and FIG 9. The details screen of the single, selected indoor unit has a tab (i.e., a symbol 801) that shows the details of the operation status and a tab (i.e., a symbol 802) that shows the details of the problem occurrence days. In FIG 8A, the operation status tab is selected; 30 furthermore, graphs (i.e., symbols 803a, 803b) that show the average operation status for the interval, graphs (i.e., symbols 804a, 804b) that show the operation status for a specific day, the problem severity (i.e., a symbol 805), and the corrective actions (i.e., a symbol 806) are displayed. In the graphs 803a, 804a, the ordinate indicates the operation status (i.e., the room temperature, the set temperature, and the electric power consumption) of the indoor units 17 12aa-12ad, 12ba-12bd, 12ca-12cd, ... , and the abscissa indicates the time of day. In the graphs 803b, 804b, the ordinate indicates the operation status (i.e., the operation time) of the indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... , and the abscissa indicates the time of day. In the graphs (i.e., the symbols 804a, 804b), the operation status is displayed for the 5 specific day the user selected (in FIG 8A, August 25, 2007 (Sat.)). The specific day selected can be changed to any date within the aggregation interval, and the first day of the aggregation interval is displayed by default. Furthermore, as shown in FIG 8B, in the diagnostic results (i.e., the symbol 805) and the corresponding corrective actions (i.e., the symbol 806), only the identified problems and the corrective actions corresponding thereto 10 are displayed; furthermore, for indicators for which there are no problems (i.e., in FIG 8B, long-time operation and reduced comfort), no information is displayed. The screen shown in FIG 9 displays the details of the problem occurrence days. In each of tables 901, 902, 903, the problem occurrence days are sorted in descending order of the problem severity. In detail, in the table 901, which lists the problem occurrence days for 15 excessive electric power consumption, the occurrence days are sorted in descending order of the cumulative electric power consumed per day. In the table 902, which lists the long-time operation, the occurrence days are sorted in descending order of the cumulative operation time per day. In the table 903, which lists the reduced comfort, the occurrence days are sorted in descending order of the cumulative time per day determined to exhibit reduced comfort. 20 Furthermore, in the case of identical cumulative values, the entry with the earlier date is prioritized in the sort. Furthermore, below each of the tables 901, 902, 903, exemplary causes of each problem are displayed. FIG 10 shows a settings screen for the identification conditions. This settings screen is displayed by pressing an Set Identification Conditions button (e.g., the symbol 706 in FIG 25 7C) provided in the lower part of the identification screen (i.e., FIG 6 through FIG 7C), which shows the indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... identified according to the three viewpoints of excessive electric power consumption, long-time operation, and reduced comfort (all of which are discussed above). The settings screen is provided with a location (i.e., a symbol 1001) wherein the 30 dates of the target interval is input, locations (i.e., symbols 1002a-1002c) wherein the target indoor unit of the indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... is selected, a location (i.e., a symbol 1003) for changing the determination criteria for excessive electric power consumption, a location (i.e., a symbol 1004) for changing the determination criteria for long time operation, and a location (i.e., a symbol 1005) for changing the determination criteria for 18 reduced comfort. In the locations (i.e., the symbols 1002a-1002c) wherein the target indoor unit of the indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... is selected, the indoor units to be identified can be registered as a group and the conditions for identifying the problems can be set per group of the indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd,. 5 <Characteristics> (1) If a plurality of multi-type air conditioners, each of which includes the plurality of indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... , are installed in an office building and the like as illustrated in the present embodiment, then an administrator, who ascertains the operation status of the indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... , checks the 10 information regarding all of the indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... using the air conditioner managing apparatus 40, which collects the information of each of the indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, .... At this time, to check whether, for example, the indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... are running efficiently or are operating needlessly, a considerable amount of time and labor is needed to check each and .5 every one of the indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd,. However, in the air conditioner managing system according to the present embodiment, the air conditioner managing apparatus 40 provides determination references based on prescribed problems, namely, on the three indicators of excessive electric power consumption, long-time operation, and reduced comfort, identifies which indoor units 12aa 2O 12ad, 12ba-12bd, 12ca-12cd, ... exceed the relevant determination reference, and generates the identification screen that displays those indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, .... In this identification screen, the identification results of all target indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... are displayed, which makes it possible to grasp the problems as a whole. Thereby, it is possible to limit the number of the indoor units 12aa-12ad, 12ba-12bd, Z5 12ca-12cd, ... that needs to be checked. In addition, the air conditioner managing apparatus 40 generates the details screen that displays the detailed information of the indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... identified based on the three indicators. Thereby, it is possible to check in detail the status of problems that occurred in the target interval for a single indoor unit. Furthermore, the display switching unit 34i switches the identification 30 screen displayed by the display unit 35 to the details screen of the single indoor unit selected via the identification screen. Accordingly, it is possible to easily specify the information of the indoor unit to be checked and to reduce the time and labor expended in performing that check. (2) To estimate the amount of electric power consumed by the plurality of indoor 19 units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... in an office building and the like, as exemplified in the present embodiment, the electric power consumption value of each of the indoor units is calculated by apportioning the total electric power consumption value among them. However, it is not appropriate to conclude that energy must be conserved for every one 5 of the indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... that exhibits a large electric power consumption value. Namely, even if the use of one of the indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... is kept to the minimum necessary, there is still the case wherein that indoor unit will be used all day long and the case wherein that indoor unit will not be used all day long; in the former case, the electric power consumption value will be large, and 10 consequently the above conclusion should not be made simply by comparing its electric power consumption value. However, the air conditioner managing apparatus 40 according to the present invention acquires data related both to the operation history and to the operation state of each of the indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... , and, based on this data, identifies 15 those indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... whose electric power consumption value per day during the prescribed interval is higher than the reference value. Namely, because the result of the identification takes into consideration the set temperature, the operation time, and the like, it is possible to easily specify the indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... for which energy can be conserved. 20 Furthermore, when identifying those indoor units 12aa-12ad, 12ba-12bd, 12ca 12cd, ... that can save energy, the air conditioner managing apparatus 40 according to the present embodiment considers the air conditioning capacity of each of the indoor units. Specifically, when identifying those indoor units that can save energy or when setting the order of priority, if the electric power consumption value of a given indoor unit is large with 25 respect to its rated air conditioning capacity, a correction-in addition to the correction wherein the order of priority of an indoor unit whose electric power consumption value is large with respect to its operation time is increased-is made that increases that indoor unit's order of priority. Accordingly, it is possible to compare the electric power consumption values taking into consideration differences in the air conditioning capacities. 30 (3) In addition, the air conditioner managing apparatus 40 according to the present embodiment can display the identification results for those indoor units 12aa-12ad, 12ba 12bd, 12ca-12cd, ... determined to exhibit reduced comfort based on the values corrected by the reduced comfort occurrence rate as discussed above. For example, if we consider the case wherein the average time determined to exhibit reduced comfort is three hours when the 20 average operation time per day is eight hours and the case wherein the average time determined to exhibit reduced comfort is two hours when the average operation time per day is four hours, then the problem severity of the latter is greater. Accordingly, displaying the identification results based on the values corrected for occurrence rate makes it possible to 5 increase the priority of an indoor unit whose problem severity is substantially greater. <Modified Examples> (1) The air conditioner managing apparatus 40 in the present embodiment comprises the local controller 20 and the comprehensive managing apparatus 30, but the air conditioner managing apparatus 40 may be a single apparatus that has the functions provided to the local 10 controller 20 and the comprehensive managing apparatus 30. (2) The present embodiment explained the air conditioner managing system that uses the single air conditioner managing apparatus 40 to manage a plurality of the air conditioners 10a, 10b, 10c, ... in one property; however, as shown in FIG 11, a remote management system 1000 may be adopted wherein a plurality of air conditioner managing apparatuses 15 40a, 40b, 40c, ... installed in a plurality of properties la, 1b, Ic, ... manage air conditioners 100a, 100b, 100c, ... installed in the properties la, 1b, 1c, ... , respectively, and the air conditioners 100a, 100b, 100c, ... are managed remotely via a communication circuit 6. In such a case, a remote management apparatus 50 comprises a communication unit 51, a display unit 52, an input unit 53, and a control unit 54. The communication unit 51 20 sends signals to and receives signals from the air conditioner managing apparatuses 40a, 40b, 40c, ... , and a screen needed for processing in the remote management apparatus 50 is displayed by the display unit 52. The input unit 53 accepts instructions from the user. The control unit 54 comprises an information acquiring unit 54a, an average value calculating unit 54b, a reference value determining unit 54c, a correcting unit 54d, and a transmitting unit 25 54e. The information acquiring unit 54a acquires from the air conditioner managing apparatuses 40a, 40b, 40c, ... the operation data acquired by the air conditioner managing apparatuses 40a, 40b, 40c, ... from the air conditioners 10a, 10b, 10c. The average value calculating unit 54b, the reference value determining unit 54c, and the correcting unit 54d of the remote management apparatus 50 have the same functions as the average value 30 calculating unit 34b, the reference value determining unit 34c, and the correcting unit 34e of the comprehensive managing apparatus 30 in the present embodiment. The transmitting unit 54e transmits to the air conditioner managing apparatuses 40a, 40b, 40c, ... the values acquired by the average value calculating unit 54b, the reference value determining unit 54c, and the correcting unit 54d. Thereby, each of the air conditioner managing apparatuses 40a, 21 40b, 40c, ... can acquire the reference value and the average value that takes into consideration not only the operation data acquired from the air conditioners 10a, 10b, 10c, ... installed in one property, but also the operation data acquired from other air conditioners 10a, 10b, 10c, .... Thereby, it is possible to compare the reference value and the average value 5 based on a large amount of operation data for the electric power consumption values of each of the indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd,. (3) In the present embodiment, the straight line approximation calculated using the least squares method is used as the average electric power and the reference value is determined based thereon; however, the reference value may be determined using a 10 correction value obtained by the method of the present embodiment. (4) In the present embodiment, the operation time is the thermostat ON time of each of the indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... , but the operation time may be the time during which each of the indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... is operating. In such a case, the operation time may be determined to be the time during which 15 the power supply of the given indoor unit of the indoor units 12aa-12ad, 12ba-12bd, 12ca 12cd, ... is ON; furthermore, the operation time may also be the time when only the fan is running. (5) The corrective action selecting unit 34f considers the operation data, such as the set temperature and the operation time, of the indoor units 12aa-12ad, 12ba-12bd, 12ca 20 12cd, ... identified by the identifying unit 34d and selects an appropriate corrective action for each problem; however, a plurality of corrective actions may be stored for each problem and, based on the identification results, one corrective action may be selected from among the plurality of corrective actions. (6) In the present embodiment, the graphs (i.e., the symbols 804a, 804b) that show 25 the operating status for a specific day display the first day of the aggregation interval as a default; however, the default may be set such that the day with the highest problem severity is displayed. (7) In the details screens shown in FIG 8A and FIG 8B, the time slots during which problems occur can be emphasized in the graphs (i.e., the symbols 803a, 803b) that show the 30 average operation status during the interval and the graphs (i.e., the symbols 804a, 804b) that show the operation status on a specific day by, for example, distinguishing the color of the time slots during which problems occur from the color of other time slots, appending some kind of mark to the time slots during which problems occur, and the like. Thereby, it is possible to much more easily identify the time slots during which problems occur. 22 Furthermore, in the screen that displays the details regarding problem occurrence days in FIG 9, a design may be adopted such that clicking one of the occurrence days in any of the tables 901, 902, 903 displays graphs (i.e., the symbols 804a, 804b) that show the operation status for that occurrence day. Thereby, the operation data on the day on which the 5 problem occurred can be easily checked. (8) By selecting the Set Identification Conditions button (i.e., the symbol 706) provided in the lower part of the identification screen (in FIG 5 through FIG 7C), the air conditioner managing apparatus 40 according to the present embodiment transitions to the identification conditions settings screen shown in FIG 10, wherein the desired identification 10 conditions can be set; however, a design may be adopted wherein the identification conditions can be stored separately for each user. Thereby, by selecting the user at the startup of the air conditioner managing apparatus 40 as shown in FIG 12, it is possible to check on the indoor units identified by the identification conditions a given user desires. Furthermore, as shown in FIG 13, a design may be adopted wherein an 15 identification condition equation can be input directly and a pattern of that equation can be stored. Thereby, a plurality of the patterns can be stored in advance and the indoor units with problems can be identified based on the desired pattern. (9) In the air conditioner managing apparatus 40 according to the present embodiment, when a specific indoor unit of the indoor units 12aa-12ad, 12ba-12bd, 12ca 20 12cd, ... is selected in the table 504 (refer to FIG 5) displayed in the identification screen, the corresponding indoor unit of the indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... in the graph 505 is color highlighted; however, a design may be adopted wherein the corresponding indoor unit of the indoor units 12aa-12ad, 12ba-12bd, 12ca-12cd, ... in the graph 505 flashes on and off instead of or in combination with the color highlighting. 25 <Other Embodiment> The above text explained an embodiment of the present invention based on the drawings, but the specific constitution is not limited to these embodiments, and it is understood that variations and modifications may be effected without departing from the spirit and scope of the invention. 30 INDUSTRIAL APPLICABILITY The present invention is useful as an air conditioner managing apparatus that facilitates the work of specifying and checking the details of indoor units with problems in a property such as an office building wherein a plurality of indoor units are installed. EXPLANATION OF THE REFERENCE NUMERALS 23 20 Local controller 30 Comprehensive managing apparatus 40 Air conditioner managing apparatus 50 Remote management apparatus 5 Patent Document I Japanese Unexamined Patent Application Publication No. 2003-302092 24

Claims

1. An air conditioner managing apparatus, comprising: a storage unit configured to accumulate operation data about numerous indoor units; an identifying unit that identifies, based on the operation data, a plurality of the i indoor units with a problem for any prescribed viewpoints among the numerous indoor units; a first screen generating unit configured to generate a first screen that includes a distribution diagram that indicates the distribution of the indoor units with regard to a prescribed reference value based on the problem severity of the identified indoor units; a second screen generating unit configured to generate a second screen wherein the ) operation data related to one specific indoor unit among the identified indoor units can be visually verified; and a display switching unit that-when one indoor unit of the plurality of indoor units with the problem displayed in the first screen is selected and an input of a prescribed button is accepted-switches to the display of the second screen related to the selected indoor unit. 5

2. An air conditioner managing apparatus according to claim 1, wherein the first screen switchably displays, by viewpoint, the plurality of the indoor units with the problem.

3. An air conditioner managing apparatus according to claim 2, wherein the second screen switchably displays, based on the operation data, an operation status display screen that indicates an operation status of one indoor unit and an occurrence 0 day display screen that indicates the problem occurrence day of the one indoor unit.

4. An air conditioner managing apparatus according to claim 3, wherein the second screen displays a graph that aggregates the operation data in accordance with the plurality of viewpoints.

5. An air conditioner managing apparatus according to claim 4, wherein 25 the operation status includes an average operation status of the one indoor unit during a prescribed interval and the operation status of the one indoor unit during a prescribed day within the prescribed interval; and the second screen displays, side by side, a graph that indicates the average operation status during the interval and a graph that indicates the operation status for the prescribed day. 30

6. An air conditioner managing apparatus according to any one claim of claim 3 through claim 5, wherein the second screen displays a method of correcting the problem based on the operation status.

7. An air conditioner managing apparatus according to claim 6, further comprising:

5552439-2 25 an input unit that inputs an identification condition for identifying the plurality of the indoor units with the problem.

8. An air conditioner managing apparatus substantially as hereinbefore described with reference to any one of the embodiments as that embodiment is shown in the accompanying drawings. DATED this fourteenth Day of September, 2011 Daikin Industries, Ltd. Patent Attorneys for the Applicant ) SPRUSON & FERGUSON 5552439-2 26