Patent Publication Number: US-9410714-B2

Title: Controller and air conditioner

Description:
TECHNICAL FIELD 
     The present invention relates to a controller and an air conditioner having the same, the controller being configured to accept operations entered for the air conditioner. 
     BACKGROUND ART 
     The ceiling embedded indoor unit has a plurality of outlets for the discharge of air-conditioning air. The outlets have flaps disposed to change the discharge direction of the air-conditioning air (see, for example, Patent Document 1). In this indoor unit, the operation of the flaps is controlled by a single motor. 
     CITATION LIST 
     Patent Document 
     Patent Document 1: JP-A-2005-207705 
     SUMMARY OF THE INVENTION 
     Problems to be Solved by the Invention 
     In an air conditioner that includes the indoor unit having a plurality of flaps respectively disposed at the outlets, it is conceivable to individually control the flaps. In this air conditioner, the wind directions of the plurality of outlets are preferably displayed by the controller so that the user can easily confirm. 
     It is accordingly an object of the present invention to provide a controller configured so that pieces of information relating to each outlet and each flap which are currently set can be collectively visible, and to provide an air conditioner having such a controller. 
     Means for Solving the Problems 
     A first aspect of the present invention is a controller for an indoor unit that includes a plurality of flaps of substantially the same shape respectively disposed at a plurality of outlets, and capable of individually changing the discharge direction of the air-conditioning air, comprising a display section that displays at least two pieces of information of selected ones of the plurality of outlets and/or selected ones of the plurality of flaps. 
     With this controller, pieces of information of all the outlets and/or the flaps are simultaneously listed. A user, by looking at this list, can grasp the current settings of all the outlets and flaps at once. 
     A second aspect of the present invention is the controller of the first aspect, further comprising: an operation section that accepts an operation entered to control the position of the plurality of flaps, wherein the display section simultaneously displays information indicative of the discharge directions of the air-conditioning air from selected ones of the plurality of outlets. 
     With this controller, the user can visually confirm on the display section the wind directions currently set for the outlets. 
     A third aspect of the present invention is the controller of the first aspect, adapted so that: in the indoor unit, different sign sections are respectively provided either in the vicinity of the plurality of outlets or on the plurality of flaps; and the display section is capable of displaying information corresponding to the sign sections. 
     With this controller, the flap in need of, for example, wind direction change can be individually identified only by looking at the sign sections formed in the vicinity of the plurality of outlets or on the plurality of flaps. Further, with the display on the display section corresponding to the sign sections, the plurality of outlets or the plurality of flaps are easily recognized. 
     A fourth aspect of the present invention is the controller of the third aspect, adapted so that the display section is capable of displaying information corresponding to the sign sections simultaneously with information indicative of the discharge directions of the air-conditioning air at the outlets indicated by the sign sections. 
     With the controller, usability can be improved, because a user looking at the display section can simultaneously grasp the outlets and the discharge directions currently set for the outlets. 
     A fifth aspect of the present invention is the controller of the second aspect, adapted so that the operation section enables the positions of the plurality of flaps to be individually changed so as to change the discharge direction of the air-conditioning air at the plurality of outlets. 
     With this controller, the positions of the flaps can be individually changed. 
     A sixth aspect of the present invention is the controller of the second aspect, adapted so that the operation section enables the positions of the plurality of flaps to be changed at once so as to change the discharge direction of the air-conditioning air at the plurality of outlets. 
     With this controller, the position of each flap can be changed at once without accompanying individual operations for the flaps. 
     A seventh aspect of the present invention is the controller of the sixth aspect, adapted so that the operation section enables the positions of the selected ones of the plurality of flaps to be changed at once so as to change the discharge direction of the air-conditioning air at the plurality of outlets. 
     With this controller, the positions of only the selected flaps can be changed at once. 
     An eighth aspect of the present invention is the controller of the first aspect, connected to an air conditioner via a wire. 
     Although the controller is a wired remote control, pieces of information of the outlets and the flaps are simultaneously displayed in a list as in the case of the wireless remote control. 
     A ninth aspect of the present invention is an air conditioner comprising the controller according to any one of the first to eighth aspects. 
     In this air conditioner, the same advantages obtained with the controller of any one of the first to eighth aspects can be obtained. 
     A tenth aspect of the present invention is the air conditioner of the ninth aspect, adapted so that, in the indoor unit, different sign sections are respectively provided either in the vicinity of the plurality of outlets or on the plurality of flaps. 
     In this air conditioner, the flap in need of, for example, wind direction change can easily be identified only by looking at the sign sections formed in the vicinity of the plurality of outlets or on the plurality of flaps. 
     An eleventh aspect of the present invention is the air conditioner of the tenth aspect, adapted so that the sign sections are three-dimensionally provided as raised portions or recessed portions. 
     In this air conditioner, a user can easily identify the sign sections, because the sign sections are three-dimensionally provided as raised portions or recessed portions. 
     A twelfth aspect of the present invention is the air conditioner of the tenth aspect, adapted so that, in the indoor unit, the sign sections are provided by being printed or by attaching stickers. 
     In the air conditioner, the sign sections can easily be formed by being printed or by attaching stickers. 
     A thirteenth aspect of the present invention is the air conditioner of any one of the tenth to twelfth aspects, adapted so that the sign sections are provided as characters, figures, or combinations of characters and figures. 
     In this air conditioner, a user can individually identify the outlets and the flaps more reliably, because the sign sections are provided as characters, figures, or combinations of characters and figures. 
     Advantage of the Invention 
     As described above, the present invention has the following effects. 
     With the first aspect, pieces of information of all the outlets and/or the flaps are simultaneously listed. A user, by looking at this list, can grasp the current settings of all the outlets and flaps at once. 
     Further, with the second aspect, the user can visually confirm on the display section the wind directions currently set for the outlets. 
     Further, with the third aspect, the flap in need of, for example, wind direction change can be individually identified only by looking at the sign sections formed in the vicinity of the plurality of outlets or on the plurality of flaps. Further, with the display on the display section corresponding to the sign sections, the plurality of outlets or the plurality of flaps are easily recognized. 
     Further, with the fourth aspect, usability can be improved, because a user looking at the display section can simultaneously grasp the outlets and the discharge directions currently set for the outlets. 
     Further, with the fifth aspect, the positions of the flaps can be individually changed. 
     Further, with the sixth aspect, the position of each flap can be changed at once without accompanying individual operations for the flaps. 
     Further, with the seventh aspect, the positions of only the selected flaps can be changed at once. 
     Further, with the eighth aspect, although the controller is a wired remote control, pieces of information of the outlets and the flaps are simultaneously displayed in a list as in the case of the wireless remote control. 
     Further, with the ninth aspect, the same advantages obtained with any one of the first to eighth aspects can be obtained. 
     Further, with the tenth aspect, the flap in need of, for example, wind direction change can easily be identified only by looking at the sign sections formed in the vicinity of the plurality of outlets or on the plurality of flaps. 
     Further, with the eleventh aspect, a user can easily identify the sign sections, because the sign sections are three-dimensionally provided as raised portions or recessed portions. 
     Further, with the twelfth aspect, the sign sections can easily be formed by being printed or by attaching stickers. 
     Further, with the thirteenth aspect, a user can individually identify the outlets and the flaps more reliably, because the sign sections are provided as characters, figures, or combinations of characters and figures. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is an external perspective view of the indoor unit according to First Embodiment of the present invention. 
         FIG. 2  is a schematic planar cross sectional view of the indoor unit. 
         FIG. 3  is a cross sectional view taken at line A-O-A of  FIG. 2 . 
         FIG. 4  is a plan view of a decorative panel of the indoor unit as viewed from an air-conditioned room. 
         FIG. 5  is an enlarged view of  FIG. 3 , illustrating a channel portion corresponding to a main outlet. 
         FIG. 6  is a cross sectional view taken at line B-B of  FIG. 4 . 
         FIG. 7  is a schematic control block diagram of the indoor unit. 
         FIG. 8  is a front view of a wired remote control according to the embodiment of the invention. 
         FIG. 9  is a schematic control block diagram of the wired remote control. 
         FIG. 10  is a diagram representing a screen displayed in a display section of the wired remote control. 
         FIG. 11  is a diagram representing a screen displayed in a display section of the wired remote control. 
         FIG. 12  is a diagram representing a screen displayed in a display section of the wired remote control. 
         FIG. 13  is a diagram representing a screen displayed in a display section of the wired remote control. 
         FIG. 14  is a diagram representing a screen displayed in a display section of the wired remote control. 
         FIG. 15  is a diagram representing a screen displayed in a display section of the wired remote control. 
         FIG. 16  is a flowchart representing the wind volume/wind direction adjustment operation of the embodiment of the invention. 
         FIG. 17  is a flowchart representing the wind direction individual setting operation of the embodiment of the invention. 
         FIG. 18  is an external perspective view of the indoor unit according to Second Embodiment of the present invention. 
         FIG. 19  is a plan view of a decorative panel of the indoor unit as viewed from an air-conditioned room. 
         FIG. 20  is an external perspective view of the indoor unit according to Third Embodiment of the present invention. 
         FIG. 21  is a plan view of a decorative panel of the indoor unit as viewed from an air-conditioned room. 
         FIG. 22  is a cross sectional view taken at line C-C of  FIG. 21 . 
         FIG. 23  is a diagram illustrating a variation of the indoor unit according to First Embodiment of the present invention. 
         FIG. 24  is a diagram illustrating a variation of the indoor unit according to First Embodiment of the present invention. 
     
    
    
     MODE FOR CARRYING OUT THE INVENTION 
     &lt;First Embodiment&gt; 
     The indoor unit and the air conditioner according to First Embodiment of the present invention are described below with reference to the accompanying drawings. 
     [Basic Configuration of Indoor Unit] 
       FIG. 1  is an external perspective view of an indoor unit  1  according to First Embodiment of the present invention.  FIG. 2  is a schematic planar cross sectional of the indoor unit  1 .  FIG. 3  is a cross sectional view taken at line A-O-A of  FIG. 2 .  FIG. 4  is a plan view of a decorative panel of the indoor unit  1  as viewed from an air-conditioned room.  FIG. 5  is an enlarged view of  FIG. 3 , illustrating a channel portion corresponding to a main outlet  32   d.    FIG. 6  is a cross sectional view taken at line B-B of  FIG. 4 . 
     As illustrated in  FIG. 1 , the indoor unit  1  is a ceiling embedded indoor unit, and includes a casing  2  housing various constituting units therein. The casing  2  is configured from a casing main body  2   a,  and a decorative panel  3  disposed under the casing main body  2   a.  The casing main body  2   a,  as illustrated in  FIG. 3 , is disposed by being inserted into the opening formed in ceiling U of an air-conditioned room. The decorative panel  3  is fitted to the opening of the ceiling U. The indoor unit  1  can be controlled by the operation of a wired remote control  83  connected via a communication cable W (wire) laid along the ceiling surface (not illustrated). 
     [Configuration of Casing Main Body] 
     As illustrated in  FIGS. 2 and 3 , the casing main body  2   a  is box-like in shape with a substantially octagonal open bottom of alternating longer sides and shorter sides as seen in a planar view, and includes a substantially octagonal top board  21  formed by the continuous and alternating longer sides and shorter sides, and side boards  22  extending downward from the peripheries of the top board  21 . The side boards  22  include side boards  22   a  to  22   d  corresponding the longer sides of the top board  21 , and side boards  22   e  to  22   h  corresponding to the shorter sides of the top board  21 . For example, as illustrated in  FIG. 2 , the side board  22   a  and the side board  22   b  are disposed substantially orthogonal to each other via the side board  22   e . The side boards  22   b  and  22   c,  the side boards  22   c  and  22   d,  and the side boards  22   d  and  22   a  are also disposed in a substantially orthogonal fashion. 
     The side board  22   e  is disposed at an about 135 degree angle with respect to the adjacent side boards  22   a  and  22   b.  The side boards  22   g  and  22   h  are also disposed at an about 135 degree angle with respect to the adjacent side boards, as with the side board  22   e.  Note that the side board  22   f  has a different shape from the other side boards, because the side board  22   f  is where a refrigerant pipe provided for the exchange of a refrigerant between a heat exchanger  6  and an outdoor unit (not illustrated) passes through. The side boards  22   e  to  22   h  are each provided with a fixing bracket  23  used to install the casing main body  2   a  in the ceiling space. In the casing main body  2   a,  the lengths of the longer and shorter sides of the top board  21  are set so that the shape including the fixing brackets  23  appears substantially rectangular as seen in a planar view. 
     [Configuration of Decorative Panel] 
     As illustrated in  FIGS. 1 and 4 , the decorative panel  3  is a substantially rectangular plate unit as seen in a planar view, and configured from mainly a panel main body  3   a  fixed to the bottom portions of the casing main body  2   a.  The panel main body  3   a  has alternately and continuously formed four panel side portions  30   a  to  30   d  (side portions) and four panel corner portions  30   e  to  30   h.  The panel side portions  30   a  to  30   d  correspond to the side boards  22   a  to  22   d,  respectively, of the casing main body  2   a.  The panel corner portions  30   e  to  30   h  correspond to the side boards  22   e  to  22   h,  respectively, of the casing main body  2   a.    
     As illustrated in  FIG. 1 , the panel main body  3   a  includes an intake  31  formed substantially at the center to draw air from the air-conditioned room, and four main outlets  32   a  to  32   d,  respectively corresponding to the panel side portions  30   a  to  30   d,  through which the air inside the casing main body  2   a  discharges into the air-conditioned room. In the present embodiment, the intake  31  is a substantially square opening. The four main outlets  32   a  to  32   d  have substantially the same shape, and are disposed along the panel side portions  30   a  to  30   d,  respectively. 
     Further, as illustrated in  FIGS. 1 and 4 , the panel main body  3   a  includes auxiliary outlets  32   e  to  32   h,  corresponding in position to the panel corner portions  30   e  to  30   h , respectively. Further, as illustrated in  FIG. 1 , a four-sided, flat annular, panel lower surface portion  3   b  is provided around the intake  31  on the lower surface of the panel main body  3   a  by being surrounded by the four main outlets  32   a  to  32   d.  As illustrated in  FIG. 4 , the panel lower surface portion  3   b  has rim portions  50   a  to  50   d  in the vicinity of the main outlets  32   a  to  32   d,  on the intake  31  side of the main outlets  32   a  to  32   d.    
     As illustrated in  FIG. 4 , the intake  31  is disposed on the inner side of the main outlets  32   a  to  32   d.  The intake  31  includes an intake grill  33 , and a filter  34  provided to remove dust in the air drawn through the intake  31 . Further, as illustrated in  FIG. 4 , the main outlets  32   a  to  32   d  are provided with flaps  35   a  to  35   d,  respectively, that are swingable about an axis along the longitudinal direction. The flaps  35   a  to  35   d  are long, narrow substantially rectangular blade members of substantially the same shape extending along the longitudinal direction of their respective main outlets  32   a  to  32   d.  The flaps  35   a  to  35   d  are swingable about an axis along the longitudinal direction of the main outlets  32   a  to  32   d  by being rotatably supported on the decorative panel  3 . 
     [Configuration of Sign Sections] 
     As illustrated in  FIG. 4 , sign sections  60   a  to  60   d  for individually recognizing the main outlets  32   a  to  32   d  or the flaps  35   a  to  35   d  are formed on the rim portions  50   a  to  50   d  of the panel lower surface portion  3   b.  The sign sections  60   a  to  60   d  are formed as figures “□”, “□□”, “□□□”, and “□□□□”. The sign sections  60   a  to  60   d  are formed on the intake  31  side of the main outlets  32   a  to  32   d.  The figures “□” to “□□□□” correspond to numbers “1” to “4”, respectively, which, in  FIG. 4 , are arranged in ascending order in the counterclockwise direction. The figures “□” to “□□□□” are disposed in positions corresponding to the main outlets  32   a  to  32   d , respectively. As illustrated in  FIG. 6 , the sign sections  60   a  to  60   d  are three-dimensionally “□□□□” provided as recessed portions in the rim portions  50   a  to  50   d.  Note that the areas surrounding the sign sections  60   a  to  60   d  are matte finished (surface texturing), whereas the sign sections are more glossy (gloss portions) relative to the surroundings. 
     The flaps  35   a  to  35   d  can be set to the swing state that involves continuous driving by flap motors  40   a  to  40   d  (see  FIG. 7 ), or the stationary state in which the discharge direction of air-conditioning air is fixed. In the swing state setting, the flaps  35   a  to  35   d  continuously swing to change the discharge direction of the air-conditioning air. On the other hand, in the stationary state setting, the flaps  35   a  to  35   d  assume the predetermined wind direction position and fix the discharge direction of the air-conditioning air in a certain direction. As illustrated in  FIG. 4 , the flaps  35   a  to  35   d  can swing to individually change the wind directions of the air flow X discharged into the air-conditioned room through the main outlets  32   a  to  32   d.    
     For example, as illustrated in  FIG. 5 , the wind direction of the air flow X discharged into the air-conditioned room through the main outlet  32   d  can be varied by the flap  35   d  upwardly and downwardly with respect to the lower surface of the ceiling U. As illustrated in  FIG. 5 , the wind direction of the air flow X can have six settings: “wind direction  1 ” to “wind direction  5 ”, and “swing” in which the flaps swing over the range of “wind direction  1 ” to “wind direction  5 ”. The wind directions are set so that the wind is sloped more downwardly with increasing numbers from “wind direction  1 ” to “wind direction  5 ”. Note that the wind directions of the air flow X discharged into the air-conditioned room through the other main outlets  32   a  to  32   c  are also variable upwardly and downwardly with respect to the lower surface of the ceiling U, and can have any of the six settings, though not described. 
     As illustrated in  FIG. 3 , inside the casing main body  2   a  are provided mainly an air blower  4  that blows air towards the periphery after drawing the air inside the air-conditioned room into the casing main body  2   a  through the intake  31  of the decorative panel  3 , and a heat exchanger  6  disposed around the periphery of the air blower  4 . In the present embodiment, the air blower  4  is a turbo fan, and includes a fan motor  41  provided at the center of the top board  21  of the casing main body  2   a , and an impeller  42  joined to and rotated by the fan motor  41 . 
     The impeller  42  includes a disc-shaped end plate  43  joined to the fan motor  41 , a plurality of blades  44  provided at the periphery on the lower surface of the end plate  43 , and a disc-shaped end ring  45  provided on the lower side of the blades  44  and having an opening at the center. By the rotation of the blades  44 , the air blower  4  can draw air into the impeller  42  through the opening of the end ring  45 , and can discharge the intake air in the impeller  42  towards the periphery of the impeller  42 . 
     In the present embodiment, the heat exchanger  6  is a cross-fin-tube heat exchanger panel formed by being bent around the periphery of the air blower  4 , and is connected via a refrigerant pipe to an outdoor unit (not illustrated) installed, for example, outside. The heat exchanger  6  is adapted to serve as an evaporator for the passing refrigerant in cooling mode, and as a condenser for the passing refrigerant in heating mode. In this way, the heat exchanger  6  can cool air in cooling mode and heat air in heating mode by the heat exchange of the air drawn into the casing main body  2   a  through the intake  31  by the air blower  4 . 
     A drain pan  7  for receiving drained water generated by the condensation of the air moisture in the heat exchanger  6  is disposed on the lower side of the heat exchanger  6 . The drain pan  7  is attached to the lower portion of the casing main body  2   a.  As illustrated in  FIGS. 2 and 3 , the drain pan  7  includes four main discharge holes  72   a  to  72   d  in communication with the main outlets  32   a  to  32   d  of the decorative panel  3 , and a drained water receptacle groove  73  formed on the lower side of the heat exchanger  6  to receive the drained water. The main discharge holes  72   a  to  72   d  are shorter along the longitudinal direction of their respective main outlets  32   a  to  32   d.  The length of the main discharge hole  72   c  is particularly shorter along the longitudinal direction than the lengths of the other main discharge holes  72   a,    72   b,  and  72   d,  because the main discharge hole  72   c  is interposed between a drain pump  8  disposed on the side board  22   g  side and used to drain the drained water accumulated in the drained water receptacle groove  73 , and the portion where the refrigerant pipe running on the side board  22   h  side passes through. 
     [Configuration of Control Unit] 
     As illustrated in  FIG. 7 , the indoor unit  1  includes a control unit  80  that controls parameters such as the rotation speed of the air blower  4 , and the wind directions of the flaps  35   a  to  35   d.  The control unit  80  mainly includes a microcomputer equipped with a CPU  81  and memory  82 . The control unit  80  receives control signals via the wired remote control  83 , and, upon receiving the signals, the CPU  81  executes the control program stored in the memory  82  to actuate the fan motor  41  of the air blower  4 , and the flap motors  40   a  to  40   d  that drive the flaps  35   a  to  35   d.  In this way, the control of the rotation speed of the air blower  4  and the wind directions of the flaps  35   a  to  35   d  is enabled. 
     [Configuration of Wired Remote Control] 
       FIG. 8  is a front view of the wired remote control  83  according to the present embodiment.  FIG. 9  is a schematic control block diagram of the wired remote control  83 . FIG.  10  represents various screens displayed in a display section  85  of the wired remote control  83 . 
     As illustrated in  FIG. 8 , the wired remote control  83  includes a remote control casing  84 , the display section  85 , various operation buttons  86  to  91 , memory  92  storing various data concerning the operation of the indoor unit  1 , a CPU  93 , and database  94 . The remote control casing  84  is substantially rectangular in shape, and houses the CPU  93  and other components therein. The display section  85  is capable of displaying various settings screens, in addition to a basic screen and various menu screens. 
     The operation buttons  86  to  91  (operation sections) are provided on the front face of the remote control casing  84 . The operate/stop button  86  is a button that a user uses to enter an instruction for starting or stopping the operation of the indoor unit  1 . The menu/set button  87  is a circular button surrounded by a doughnut-shaped select button  88 , and is used by a user when changing the various settings of the indoor unit  1 . Pressing the menu/set button  87  enables the display section  85  to display a main menu screen D 1 . The menu/set button  87  also functions to set each setting item selected in the main menu screen D 1 . 
     The select button  88  has an up selector  88   u,  a down selector  88   d,  a left selector  88   l , and a right selector  88   r,  each marked with the symbol Δ indicative of the direction (up, down, left, or right). The four selectors  88   u  to  88   r  are integral in appearance, and represent the allocated regions up, down, left, and right of the select button  88 . Pressing the selector  88   u  to  88   r  moves the cursor, enabling a user to select, for example, a setting item or a setting value for the indoor unit  1 . 
     The mode switch button  89  is a button used to switch the operation mode of the indoor unit  1  between heating mode and cooling mode. The wind volume/wind direction button  90  is a button that a user uses to change the total wind volume/total air direction of the outlets  32   a  to  32   d.  The CPU  93  runs a program to control the operation of the indoor unit  1 . The database  94  stores various kinds of information, including the layout data for forming a screen displayed in the display section  85 . Examples of layout data include basic layout data for forming the basic screen D 0  shown in  FIG. 10 , main menu layout data for forming the main menu screen D 1  shown in  FIG. 11 , and detailed settings layout data for the total wind volume/total wind direction adjust screen D 2  shown in  FIGS. 12 and 13 , the wind direction individual setting screen D 3  shown in  FIG. 14 , and the wind direction settings check screen D 4  shown in  FIG. 15 . 
     [Configurations of Screens Displayed in Display Section  85 ] 
       FIGS. 10 to 15  represent various screens displayed in the display section  85  of the wired remote control  83 . 
     [Basic Screen Configuration] 
       FIG. 10( a ) and ( b )  represents examples of the basic screen D 0  displayed in the display section  85 . As shown in  FIG. 10 , the basic screen D 0  is divided into a display region  100  that indicates the current temperature setting, a display region  101  that indicates the current operation mode setting, a display region  102  that indicates the current wind volume state setting, and a display region  103  that indicates whether the wind directions are individually set for the main outlets  32   a  to  32   d.    
     As shown in  FIG. 10( a ) , the display region  100  displays the character “26°”. In  FIG. 10( b ) , the display region  100  displays the character “26° C.” as the current temperature setting, the display region  101  the character “Cooling” as the current operation mode setting, and the display region  102  the character “Auto” as the current wind volume state setting. 
     The display region  103  displays the character “Individual setting” when the wind direction is individually set for at least one of the main outlets  32   a  to  32   d,  and does not display any text when the wind direction is not individually set for any of the main outlets  32   a  to  32   d.  In  FIG. 10( a ) and ( b ) , the wind direction is individually set for any of the outlets  32   a  to  32   d,  and as such the display region  103  displays the character “Individual setting”. The display region  103  may display the character “No individual setting” when the wind direction is not individually set for any of the outlets  32   a  to  32   d.  Pressing the menu/set button  87  in the basic screen D 0  changes the display to the main menu screen D 1  shown in  FIG. 11 . Pressing the wind volume/wind direction button  90  in the basic screen effects the interrupt processing, and changes the display to the total wind volume adjust screen D 2  shown in  FIG. 12 . 
     [Configuration of Main Menu Screen] 
       FIG. 11( a ) and ( b )  represents examples of the main menu screen D 1  displayed in the display section  85 . As shown in  FIG. 11 , the main menu screen D 1  has six setting items for the indoor unit  1 . Specifically, menu titles are listed that correspond to “Service contact information/model name”, “Wind direction individually setting”, “Check wind direction setting”, “Timer setting”, “Energy saving setting”, and “Useful functions”. 
       FIG. 11 ( a )  represents the initial screen that appears upon switching to the main menu screen D 1 . In the initial screen, the cursor is on the menu title corresponding to the setting item “Service contact information/model name” from the different setting items. Pressing the down selector  88   d  in this state moves the cursor down in the display section  85  in turn, allowing the user to select a setting item by placing the cursor on one of the menu titles “Wind direction individually setting” to “Useful functions”. 
     For example, as shown in  FIG. 11( b ) , pressing the menu/set button  87  while the setting item “Wind direction individually setting” is selected, the main menu screen D 1  switches to the wind direction individual setting screen D 3  shown in  FIG. 14 . The user can then individually set the wind direction for any of the main outlets  32   a  to  32   d,  based on the wind direction individual setting screen D 3 . Further, for example, pressing the menu/set button  87  while the setting item “Check wind direction setting” is selected, the main menu screen D 1  switches to the wind direction settings check screen D 4  shown in  FIG. 15 . On the wind direction settings check screen D 4 , the user can then visually confirm all the wind directions currently set for the main outlets  32   a  to  32   d.    
     [Configuration of Total Wind Volume/Total Wind Direction Adjust Screen] 
       FIG. 12( a ) to ( e )  and  FIG. 13( a ) to ( h )  represent examples of the total wind volume/total wind direction adjust screen D 2  displayed in the display section  85 . As shown in  FIGS. 12 and 13 , the total wind volume/total wind direction adjust screen D 2  is divided into display regions  104  and  105 . Menu titles corresponding to the two setting items “Adjust total wind volume” and “Adjust total wind direction” are displayed in the upper part of each display region. 
     &lt;Total Wind Volume Adjustment Operation&gt; 
       FIG. 12( a )  represents the initial screen D 2 - 0  of the total wind volume/total wind direction adjust screen D 2 . In the initial screen, the cursor is on the menu title corresponding to the setting item “Adjust total wind volume”. The display region  104  in the initial screen displays the character “Rapid”, indicating that the total wind volume is currently “Rapid” for all of the main outlets  32   a  to  32   d.  The total wind volume of the main outlets  32   a  to  32   d  can be set to “Strong” ( FIG. 12( b ) ), “Weak” ( FIG. 12( c ) ), or “Auto” ( FIG. 12( d ) ). 
     Pressing the cancel button  91  in the initial screen D 2 - 0  shown in  FIG. 12( a ) , switches the display to the basic screen D 0  shown in  FIG. 10 . On the other hand, pressing the down selector  88   d  in the initial screen D 2 - 0  switches the display to the settings screen D 2 - 1  ( FIG. 12( b ) ), the settings screen D 2 - 2  ( FIG. 12( c ) ), and the settings screen D 2 - 3  ( FIG. 12( d ) ) in turn. Pressing the menu/set button  87  in each display state changes the display in the display region  104  from “Strong” to “Weak”, and to “Auto”, allowing the user to set the total wind volume for the main outlets  32   a  to  32   d  at once. The display returns to the previous screen at the pressing of the up selector  88   u.    
     &lt;Total Wind Direction Adjustment Operation&gt; 
     Pressing the right selector  88   r  in the state shown in  FIG. 12( a ) , moves the cursor to the menu title corresponding to the setting item “Adjust total wind direction”, and the initial screen D 2 - 0  shown in  FIG. 12( a )  switches to the initial screen D 2 - 4  for total wind direction adjustment shown in  FIG. 13( a ) . Note that, in this example, the text “Wind direction individual setting” displayed in the lower part of the display region  105  in the initial screen means that the wind direction has been individually set to “Wind direction  1 ” for the main outlet  32   c , and the total wind direction for the remaining main outlets  32   a,    32   b,  and  32   d  other than the main outlet  32   c  is set at once, as follows. As an example, the main outlets  32   a,    32   b,  and  32   d  other than the main outlet  32   c  may be selected by individually setting “Wind direction  1 ” for the main outlet  32   c  in advance, and the total wind direction may be set at once only for the wind direction positions of the flaps  35   a,    35   b,  and  35   d  of the main outlets  32   a,    32   b,  and  32   d  so selected. The text “Wind direction  1 ” displayed at the center of the display region  105  means that the total wind direction of the main outlets  32   a ,  32   b,    32   d  is currently set to “Wind direction  1 ” altogether. The total wind direction of the main outlets  32   a,    32   b,  and  32   d  may be set to any of “Wind direction  2 ” ( FIG. 13( b ) ), “Wind direction  3 ” ( FIG. 13( c ) ), “Wind direction  4 ” ( FIG. 13( d ) ), “Wind direction  5 ” ( FIG. 13( e ) ), and “Swing” ( FIG. 13( f ) ). 
     Pressing the down selector  88   d  in the initial screen shown in  FIG. 13( a ) , switches the display to the settings screen D 2 - 5  ( FIG. 13( b ) ), the settings screen D 2 - 6  ( FIG. 13( c ) ), the settings screen D 2 - 7  ( FIG. 13( d ) ), the settings screen D 2 - 8  ( FIG. 13( e ) ), and the settings screen D 2 - 9  ( FIG. 13( f ) ) in turn, changing the display of the display region  105  from “Wind direction  1 ” to “Wind direction  5 ”, and to “Swing” in turn. Pressing the menu/set button  87  in each display state enables the total wind direction of the main outlets  32   a,    32   b,  and  32   d  to be set at once. The display returns to the previous screen at the pressing of the up selector  88   u.    
     In the screens shown in  FIGS. 12 and 13 , the character “Wind direction individual setting” is displayed to indicate that the wind direction is individually set for any of the main outlets. However, the display may indicate which of the main outlets has an individual wind direction setting. Specifically, in the presently described example, the display may indicate that the wind direction has been individually set for the main outlet  32   c.  Further, in the screens shown in  FIGS. 12 and 13 , the display may indicate which outlet is subject to the “Total wind direction setting”. Specifically, in this example, the display may indicate that the main outlets  32   a ,  32   b,  and  32   d  are the subject of the “Total wind direction setting”. 
     [Configuration of Wind Direction Individual Setting Screen] 
       FIG. 14( a ) to ( g )  represents examples of the wind direction individual setting screen D 3  displayed in the display section  85 . As shown in  FIG. 14 , the wind direction individual setting screen D 3  is divided into display regions  106  and  107 . The display region  106  schematically displays the indoor unit  1  as viewed from the room, and symbols “□” to “□□□□” representing the sign sections  60   a  to  60   d  of the rim portions  50   a  to  50   d  are displayed in the diagram. The display region  107  displays the state of the wind direction currently set for the main outlets  32   a  to  32   d.    
       FIG. 14( a )  represents the initial screen D 3 - 0  for wind direction individual setting. In the initial screen D 3 - 0 , the schematic view displayed in the display region  106  includes an inverted display, indicating that the main outlet  32   a  corresponding to symbol “□” has been selected. Further, in the initial screen D 3 - 0 , the number “1” displayed at the central part of the display region  106  corresponds to the main outlet  32   a,  and indicates that the main outlet  32   a  has been selected. The inverted display and the number thus provide visual information for a user to confirm that the outlet  32   a  is available for the individual setting of wind direction. Further, as shown in  FIG. 14( a ) , the character “wind direction  2 ” is displayed at the center of the display region  107  in the initial screen D 3 - 0 , indicating that the main outlet  32   a  has been set to “wind direction  2 ”. 
     &lt;Wind Direction Individual Setting Operation&gt; 
     The wind direction of the main outlet  32   a  can be selected from “wind direction  1 ” to “wind direction  5 ” and “Swing” by operating the up selector  88   u  or the down selector  88   d  in the state shown in  FIG. 14( a ) . Pressing the menu/set button  87  while any of the wind directions is selected sets the main outlet  32   a  to the selected wind direction. On the other hand, pressing the cancel button  91  in the state shown in  FIG. 14( a ) , switches the initial screen D 3 - 0  to the main menu screen D 1  shown in  FIG. 11 . Pressing the right selector  88   r  in the state shown in  FIG. 14( a ) , switches the initial screen D 3 - 0  to the settings screen D 3 - 1  ( FIG. 14( b ) ), the settings screen D 3 - 2  ( FIG. 14( c ) ), and the settings screen D 3 - 3  ( FIG. 14( d ) ) in turn, allowing the user to set any of “wind direction  1 ” to “wind direction  5 ” and “Swing” for the main outlets  32   b  to  32   d.    
     &lt;Wind Direction Individual Setting Operation for Main Outlet  32   d&gt;   
     As an example, the following describes how the “wind direction  2 ” set for the main outlet  32   d  as in  FIG. 14( d )  is changed to “wind direction  3 ”. Pressing the down selector  88   d  in the settings screen D 3 - 3  of  FIG. 14( d )  switches the display to the settings screen D 3 - 4  shown in  FIG. 14( e ) , and the display at the central part of the display region  107  switches to “wind direction  3 ”. Pressing the menu/set button  87  while “wind direction  3 ” is displayed enables the wind direction of the main outlet  32   d  to be individually set to “wind direction  3 ”. 
     [Configuration of Wind Direction Settings Check Screen] 
       FIG. 15( a ) and ( b )  represents examples of the wind direction settings check screen D 4  displayed in the display section  85 . As shown in  FIG. 15 , the wind direction settings check screen D 4  lists menu titles corresponding to three check items: “Outlet”, “Wind direction”, and “Individual setting”, from left to right. As shown in (a) and (b) in  FIG. 15 , the column under the check item “Outlet” displays symbols “1▪” to “4▪▪▪▪” for individually identifying the outlets  32   a  to  32   d . The symbols “1▪” to “4▪▪▪▪” correspond to the symbols “□” to “□□□□” (see  FIG. 3 ) for individually identifying the main outlets  32   a  to  32   d.  Further, as shown in  FIG. 15( a ) and ( b ) , the column under the check item “Wind direction” displays the wind directions of the main outlets  32   a  to  32   d,  simultaneously with the symbols “1▪” to “4▪▪▪▪”. Further, as shown in  FIG. 15( a ) and ( b ) , the column under the check item “Individual setting” indicates whether the wind direction has been individually set for the main outlets  32   a  to  32   d,  and “o” is displayed in the cells corresponding to the individually set main outlets. 
     Specifically in  FIG. 15( a ) , the main outlets  32   a,    32   b,  and  32   d  have the total wind direction setting “wind direction  2 ”, and only the wind direction of the main outlet  32   c  has the individual setting “wind direction  1 ”. In the column under the check item “Individual setting”, the symbol “o” is displayed in the cell corresponding to the main outlet  32   c.  In  FIG. 15( b ) , the main outlets  32   a  and  32   b  have the total wind direction setting “wind direction  2 ”, and the wind directions of the main outlets and  32   c  and  32   d  have the individual settings “wind direction  1 ” and “wind direction  3 ”, respectively. Thus, the symbol “o” is displayed in the cells corresponding to the main outlets  32   c  and  32   d  under the check item “Individual setting”. In the present embodiment, pressing the right selector  88   r  in the wind direction settings check screen of  FIG. 15( a ) and ( b ) , switches the display to the initial screen D 3 - 0  for wind direction individual setting shown in  FIG. 14 , enabling a user to individually set the wind direction for any of the main outlets. Note that the individual wing direction setting for any of the main outlets may be enabled while the wind direction settings check screen is displayed. 
     [Wind Volume/Wind Direction Adjustment Operation] 
     The wind volume/wind direction adjustment operation of the present embodiment is described below with reference to  FIGS. 16 and 17 . 
       FIG. 16  is a flowchart representing the wind volume/wind direction adjustment operation of the present embodiment. It should be noted that the “wind volume/wind direction adjustment operation” in the flowchart includes the “total wind volume adjustment operation”, “total wind direction adjustment operation”, “wind direction individual setting operation”, and “wind direction settings check operation”, as will be described later. 
     First, in step S 100  in  FIG. 16 , the display section  85  displays the basic screen D 0  (see  FIG. 10( a ) ). 
     Then, it is determined in step S 102  whether the wind volume/wind direction button  90  has been pressed. If it is determined that the wind volume/wind direction button  90  has been pressed, the sequence goes to step S 104 . On the other hand, the sequence goes to step S 100  if it is determined that the wind volume/wind direction button  90  has not been pressed. 
     In the next step S 104 , the display section  85  displays the total wind volume/total wind direction adjust screen D 2  (see  FIG. 12( a ) to ( d ) ) for the group setting of the total wind volume for the main outlets  32   a  to  32   d.    
     In the next step S 106 , it is determined whether a request for changing the currently set wind volume for the main outlets  32   a  to  32   d  to other wind volume has been entered. If a request for changing to other wind volume has been entered, the sequence goes to step  108 , and the total wind volume adjustment operation is performed. On the other hand, the sequence goes to step S 110  if a request for wind volume change has not been entered. 
     It is determined in step S 110  whether a request for changing the currently set wind direction for the main outlets  32   a,    32   b , and  32   d  to other wind direction has been entered. If a request for changing to other wind direction has been entered, the sequence goes to step  112 , and the total wind direction adjustment operation is performed. On the other hand, the sequence goes to step S 110  if a request for wind volume change has not been entered. 
     In step S 114 , the display section  85  displays the basic screen D 0 . 
     In the next step S 116 , the display section  85  displays the main menu screen D 1 . 
     It is determined in the next step S 118  whether a request for confirming the wind direction settings of the main outlets  32   a  to  32   d  has been entered. If a request for confirming the wind direction settings of the main outlets  32   a  to  32   d  has been entered, the sequence goes to step S 120 . On the other hand, the sequence goes to step S 122  if a request for confirming the wind direction settings of the main outlets  32   a  to  32   d  has not been entered. 
     In step S 120 , it is determined if a request for individually setting the wind direction of any of the main outlets  32   a  to  32   d  has been entered. If a request for individually setting the wind direction of any of the main outlets  32   a  to  32   d  has been entered, the sequence goes to step S 126  in  FIG. 17 . On the other hand, the sequence goes to step S 100  if a request for individually setting the wind direction of any of the main outlets  32   a  to  32   d  has not been entered. 
     In step S 122 , the display section  85  displays the wind direction settings check screen D 4 , and the sequence goes to step S 100 . 
     &lt;Wind Direction Individual Setting Operation&gt; 
       FIG. 17  is a flowchart representing the wind direction individual setting operation of the present embodiment. 
     Following step S 126  in  FIG. 17 , the display section  85  in step S 200  displays the initial screen D 3 - 0  for wind direction individual setting (see  FIG. 14( a ) ). In the next step S 202   a , it is determined whether the main outlet  32   a  has been selected. If the main outlet  32   a  has been selected, the sequence goes to step S 204   a,  and the flap  35   a  is adjusted to the individually set wind direction. In step  206   a,  the display section  85  displays the wind direction settings check screen D 4 . If the main outlet  32   a  has not been selected, the sequence goes to step S 202   b.  If the main outlet  32   b  has been selected, the wind direction of the flap  35   b  is adjusted in step S 204   b,  and the wind direction settings check screen D 4  is displayed in step S 206   b.  The same process is performed for the main outlets  32   c  and  32   d  in steps S 202   c  to S 206   c  and in steps S 202   d  to S 206   d , respectively. 
     In the foregoing wind volume/wind direction adjustment operation, the wind direction individual setting operation is performed in step S 126  of  FIG. 17  after the total wind volume adjustment operation (step S 108 ) and the total wind direction adjustment operation (step S 112 ) in  FIG. 16 . However, for example, the total wind volume adjustment operation (step S 108 ) or the total wind direction adjustment operation (step S 112 ) may be performed by interrupting the currently running wind direction individual setting operation when the wind volume/wind direction button  90  is pressed while performing the wind direction individual setting operation in step S 126  of  FIG. 17 . 
     [Characteristics of the Air Conditioner of First Embodiment] 
     With the air conditioner of the first embodiment, pieces of information of all the main outlets  32   a  to  32   d  or the flaps  35   a  to  35   d  are simultaneously listed. A user, by looking at this list, can grasp the current settings of wind directions of all the main outlets  32   a  to  32   d  and the flaps  35   a  to  35   d  at once. 
     Further, in the indoor unit  1 , different sign sections  60   a  to  60   d  are respectively formed in the vicinity of the plurality of main outlets  32   a  to  32   d,  and the display section  85  is capable of displaying information corresponding to the sign sections  60   a  to  60   d.  Therefore, the flap in need of, for example, wind direction change can be individually identified only by looking at the sign sections  60   a  to  60   d.  Further, with the display on the display section  85  corresponding to the sign sections  60   a  to  60   d,  the plurality of outlets  32   a  to  32   d  are easily recognized. 
     Further, a user can easily identify the sign sections  60   a  to  60   d,  because the sign sections  60   a  to  60   d  are three-dimensionally provided as recessed portions in the rim portions  50   a  to  50   d  of the panel lower surface portion  3   b . Because the sign sections  60   a  to  60   d  are formed on the flat surface of the panel lower surface portion  3   b,  the sign sections  60   a  to  60   d  can easily be recognized from any direction in the room. Specifically, the recognition of the sign sections  60   a  to  60   d  from a certain direction in a room can be difficult when the sign sections  60   a  to  60   d  are formed on the outer side of the outlets and when the areas bearing the sign sections  60   a  to  60   d  are tilted with respect to the ceiling surface. It also can be difficult to recognize the sign sections  60   a  to  60   d  depending on the direction in a room when the flap angle is changed for flaps  35   a  to  35   d  having the sign sections  60   a  to  60   d  directly formed thereon. 
     Further, a user can individually identify the main outlets  32   a  to  32   d  and the flaps  35   a  to  35   d  more reliably, because the sign sections  60   a  to  60   d  are provided as figures “□” to “□□□□”. 
     Further, a user can individually identify the main outlets  32   a  to  32   d  and the flaps  35   a  to  35   d  even more reliably, because the sign sections  60   a  to  60   d  corresponding to the main outlets  32   a  to  32   d  and the flaps  35   a  to  35   d  are formed by the counterclockwise layout of the figures “□” to “□□□□” representing the sign sections  60   a  to  60   d.    
     Further, a user can individually identify the main outlets  32   a  to  32   d  and the flaps  35   a  to  35   d  even more reliably, because the surroundings of the sign sections  60   a  to  60   d  are matte finished to make the sign sections  60   a  to  60   d  more noticeable in appearance over the surroundings. 
     Further, because the decorative panel  3  and the sign sections  60   a  to  60   d  are integrally formed, it is not necessary to go through the laborious procedure of preparing four flaps of different shapes, which is otherwise necessary when a recessed sign section is to be provided for each flap. This reduces the number of manufacturing steps and the manufacturing cost of the air conditioner  1 . 
     Further, the air-conditioning air can be sent into the room most efficiently, because the main outlets  32   a  to  32   d  are disposed on the panel side portions  30   a  to  30   d,  the outermost portions of the product. 
     Further, because the intake  31  is disposed on the inner side of the main outlets  32   a  to  32   d,  the discharged air flow can be prevented from being immediately drawn into the intake. 
     Further, because the sign sections  60   a  to  60   d  are formed on the intake  31  side of the main outlets  32   a  to  32   d,  the sign sections  60   a  to  60   d  can easily be checked even when the flaps  35   a  to  35   d  are moving during the operation. 
     Further, a user can easily identify the flaps  35   a  to  35   d  by looking at the sign sections  60   a  to  60   d,  even when the flaps  35   a  to  35   d  have substantially the same shape and make it difficult for the user to individually identify the flaps  35   a  to  35   d.    
     Further, usability can be improved, because a user looking at the display section  85  of the wired remote control  83  can simultaneously grasp the main outlets  32   a  to  32   d  and the wind directions currently set for the outlets on the wind direction settings check screen D 4 . 
     Further, a user can easily grasp the wind directions of all the main outlets  32   a  to  32   d  only by looking at the display section  85 , because the wind directions of the main outlets  32   a  to  32   d  are displayed in a list on the wind direction settings check screen D 4 . 
     Further, a user can change the wind direction positions of the flaps  35   a  to  35   d  with a remote control based on his or her memory of the sign sections corresponding to the outlets or flaps, even when the wired remote control  83  is disposed distant away from the indoor unit  1 . 
     &lt;Second Embodiment&gt; 
     The indoor unit according to Second Embodiment of the present invention is described below with reference to the accompanying drawings. 
     [Basic Configuration of Indoor Unit] 
       FIG. 18  is an external perspective view of an indoor unit  101  according to Second Embodiment of the present invention.  FIG. 19  is a plan view of an intake grill  108  of the indoor unit  101  as seen from the air-conditioned room. 
     As illustrated in  FIG. 18 , the indoor unit  101  is a ceiling-hanging indoor unit including box-shaped casing  103  provided with main outlets  102   a  to  102   d  provided as horizontal openings on the four sides of the casing  103 . The indoor unit  101  is disposed on the ceiling surface (not illustrated). A heat exchanger and a turbo fan are housed inside the casing  103 . Flaps  106   a  to  106   d  for adjusting the wind direction of the air-conditioning air into the room are rotatably provided for the main outlets  102   a  to  102   d.    
     As illustrated in  FIG. 18 , the intake grill  108  having an intake  107  at the center is mounted on the lower surface of the casing  103  in a manner allowing the intake grill  108  to open and close. As illustrated in  FIG. 19 , the intake grill  108  has side portions  150   a  to  150   d  in the vicinity of the main outlets  102   a  to  102   d,  respectively. As illustrated in  FIGS. 18 and 19 , the main outlets  102   a  to  102   d  are formed along the side portions  150   a  to  150   d,  respectively. The intake  107  is disposed on the inner side of the main outlets  102   a  to  102   d.    
     [Configuration of Sign Sections] 
     As illustrated in  FIG. 19 , the sign sections  160   a  to  160   d  for individually recognizing the main outlets  102   a  to  102   d  or the flaps  106   a  to  106   d  are formed by attaching stickers, numbered “1” to “4”, to the side portions  150   a  to  150   d.  The numbers “1” to “4” correspond to the main outlets  102   a  to  102   d , respectively, and are arranged in ascending order in the counterclockwise direction in  FIG. 19 . As illustrated in  FIGS. 18 and 19 , the sign sections  160   a  to  160   d  are formed on the intake  107  side of the main outlets  102   a  to  102   d.    
     [Characteristics of the Air Conditioner of Second Embodiment] 
     In the air conditioner of Second Embodiment, the same effects obtained for the air conditioner of First Embodiment can be obtained, because the flaps in need of, for example, wind direction change can be individually identified from the flaps  106   a  to  106   d  only by looking at the sign sections  160   a  to  160   d  formed in the side portions  150   a  to  150   d  in the vicinity of the main outlets  102   a  to  102   d.    
     Further, the sign sections  160   a  to  160   d  can easily be formed by attaching stickers numbered “1” to “4” to the side portions  150   a  to  150   d.    
     &lt;Third Embodiment&gt; 
     The indoor unit according to Third Embodiment of the present invention is described below with reference to the accompanying drawings. 
     [Basic Configuration of Indoor Unit] 
       FIG. 20  is an external perspective view of an indoor unit  201  according to Third Embodiment of the present invention.  FIG. 21  is a plan view of a decorative panel  222  of the indoor unit  201  as viewed from the air-conditioned room.  FIG. 22  is a cross sectional view taken at line C-C of  FIG. 21 . 
     The indoor unit  201  is a ceiling embedded indoor unit, and includes a casing  202  ( FIG. 20 ) in which components such as a fan unit, a heat exchanger, and an electrical component box are contained. The casing  202  has a form of a horizontally long rectangle with a decorative panel  222  mounted on a main body casing  221 . As illustrated in  FIG. 20 , the decorative panel  222  is detachably provided on the main body casing  221 , covering the lower surface of the main body casing  221 . Horizontally long intakes  223  are provided through the decorative panel  222  at the center, and horizontally long main outlets  224   a  and  224   b  are provided along side portions  227   a  and  227   b  on the both sides. Flaps  226   a  and  226   b  for adjusting the wind direction of the air-conditioning air into the room are rotatably provided for the main outlets  224   a  and  224   b.  As illustrated in  FIG. 20 , an intake grill  225  is detachably mounted on the intakes  223 . The intakes  223  are disposed on the inner side of the main outlets  224   a  and  224   b.    
     [Configuration of Sign Sections] 
     As illustrated in  FIG. 21 , sign sections  260   a  and  260   b  for individually recognizing the main outlets  224   a  and  224   b  and the flaps  226   a  and  226   b  are formed on the outer side of the decorative panel  222 , in the vicinity of the main outlets  224   a  and  224   b.  The sign sections  260   a  and  260   b  are formed as the figures “□” and “□□”. The figures “□” and “□□” correspond to the main outlets  224   a  and  224   b,  respectively. The sign sections  260   a  and  260   b  are formed opposite from the intakes  223  with respect to the main outlets  224   a  and  224   b.  As illustrated in  FIG. 22 , the sign sections  260   a  and  260   b  are three-dimensionally provided as raised portions on the decorative panel  222 . 
     [Characteristics of the Air Conditioner of Third Embodiment] 
     In the air conditioner of Third Embodiment, the same effects obtained for the air conditioner of First Embodiment can be obtained, because the flaps in need of, for example, wind direction change can be individually identified from the flaps  226   a  and  226   b  only by looking at the sign sections  260   a  and  260   b  formed in the vicinity of the main outlets  224   a  and  224   b.    
     While certain embodiments of the present invention have been described with reference to the accompanying drawings, it should be understood that specific configurations are not limited to the embodiments described above. Further, the scope of the present invention is defined not only by the descriptions of the foregoing embodiments but by the claims below, including all modifications within the meaning and scope of the equivalents to the claims. 
     &lt;variation&gt; 
     In the foregoing First Embodiment, the sign sections are realized by the sign sections  60   a  to  60   d  formed as recessed portions in the rim portions  50   a  to  50   d.  In the foregoing Second Embodiment, the sign sections are realized by the sign sections  160   a  to  160   d  formed by attaching stickers numbered “1” to “4” to the side portions  150   a  to  150   d.  In the foregoing Third Embodiment, the sign sections are realized by the sign sections  260   a  and  260   b  formed as raised portions on the decorative panel  222 . However, the present invention is not limited to these specific embodiments. For example, the outlets or flaps may be individually recognized by changing the color of each flap. Alternatively, as illustrated in  FIG. 23 , the sign sections  60   a  to  60   d  may be formed on the outer side of the outlets  32   a  to  32   d  on the panel main body  3   a . Further, as illustrated in  FIG. 24 , the sign sections  60   a  to  60   d  may be directly formed on the flaps  35   a  to  35   d.    
     In the foregoing First Embodiment, the sign sections  60   a  to  60   d  are described as being relatively glossier than the matte finished surroundings. However, the present invention is not limited to this embodiment. For example, the sign sections may be actively treated to be glossy, or may include a portion (gloss portion) where a luminous fluorescent coating that glows in the dark is applied. Further, the sign sections may be color displayed using, for example, an LED (light emitting portion), or an LED (light emitting portion) or other light emitting materials may be provided inside the transparent resin forming the flaps  35   a  to  35   d.    
     In the foregoing First Embodiment, the sign sections  60   a  to  60   d  corresponding to the outlets  32   a  to  32   d  and the flaps  35   a  to  35   d  are described as being formed by the counterclockwise arrangement of the figures “□” representing the sign sections  60   a  to  60   d.  However, the present invention is not limited to this embodiment. For example, the sign sections  60   a  to  60   d  may be formed by the clockwise arrangement of the figures “□” representing the sign sections  60   a  to  60   d.  Further, the clockwise/counterclockwise layout may not even be necessary. 
     Further, in the foregoing First Embodiment, the present invention is described as being applied to the indoor unit  1  that includes the panel main body  3   a  provided with the main outlets  32   a  to  32   d  and the auxiliary outlets  32   e  to  32   h . However, the present invention is not limited to this embodiment. For example, the present invention is also applicable to an indoor unit that includes a panel main body provided only with the main outlets  32   a  to  32   d.    
     Further, in the foregoing First Embodiment, the indoor unit  1  is controlled by using the wired remote control  83  connected to the main body of the indoor unit  1  via the communication cable. However, the present invention is not limited to this embodiment. The air conditioner may be controlled by using a radio-transmission wireless remote control that does not make use of a communication cable for interconnection with the main body of the indoor unit  1 . 
     Further, in the foregoing First Embodiment, the total wind volume of the outlets  32   a  to  32   d  is adjusted with a single fan motor  41  provided for the outlets  32   a  to  32   d,  and with a single impeller  42  that rotates by being joined to the fan motor  41 . However, the present invention is not limited to this embodiment. For example, the wind volume may be individually adjusted for the outlets  32   a  to  32   d  with a fan motor and an impeller provided for each of the outlets  32   a  to  32   d.  When the wind volume is adjustable for each of the outlets  32   a  to  32   d,  the state of each wind volume of the outlets  32   a  to  32   d  may be displayed in a list in the display section  85 . Further, when the operation mode (heating/cooling) is switchable for each of the outlets  32   a  to  32   d,  the operating condition for each of the outlets  32   a  to  32   d  may be displayed in a list in the display section  85 . 
     Further, in the foregoing First Embodiment, the display region  105  is adapted to display “wind direction  1 ” to “wind direction  5 ” and “Swing”. However, the present invention is not limited to this embodiment. For example, the display section  105  may display “Fully closed”, indicating that the flaps are fully closed. 
     Further, in the foregoing First Embodiment, the wind direction of the main outlet  32   c  is set to “wind direction  1 ” in advance, and the wind direction positions of only the selected flaps  35   a,    35   b,  and  35   d  are changed at once. However, the present invention is not limited to this embodiment. For example, the wind direction positions of the selected flaps  35   a,    35   b,  and  35   d  may be directly changed without setting the wind direction of the main outlet  32   c  to “wind direction  1 ” in advance. 
     Further, in the foregoing First Embodiment, the remote control  83  and the indoor unit  1  are connected to each other via the communication cable W. However, the present invention is not limited to this embodiment. In the case of external power supply, the remote control may be connected to the outdoor unit via a wire, and the operation signals from the remote control may be sent first to the outdoor unit, and then to the indoor unit  1  with the supplied power from the outdoor unit. 
     Further, in the foregoing First Embodiment, wind direction settings check screen D 4  simultaneously displays information indicative of the discharge directions of the air-conditioning air from the four main outlets  32   a  to  32   d.  However, the present invention is not limited to this embodiment. The wind direction settings check screen D 4  may simultaneously display information (e.g., information indicative of the discharge directions of the air-conditioning air) of selected ones of the four main outlets  32   a  to  32   d  (two or three main outlets). Further, the wind direction settings check screen D 4  may simultaneously display information (e.g., information indicative of the angles of the flaps) of all the four flaps  35   a  to  35 , or simultaneously display information of selected ones of the four flaps  35   a  to  35   d  (two or three flaps). Further, the wind direction settings check screen D 4  may simultaneously display information of selected ones of the four main outlets  32   a  to  32   d,  and information of selected ones of the four flaps  35   a  to  35   d.    
     REFERENCE NUMERALS 
     
         
           1 ,  101 ,  201  Indoor unit 
           30   a  to  30   d  Panel side portions 
           31 ,  107 ,  223  Intake 
           32   a  to  32   d,    102   a  to  102   d,    224   a,    224   b  Outlets 
           35   a  to  35   d,    106   a  to  106   d,    226   a,    226   b  Flaps 
           60   a  to  60   d,    160   a  to  160   d,    260   a,    260   b  Sign section 
           83  Wired remote control 
           85  Display section 
           87  Menu/set button (operation section) 
           88  Select button (operation section) 
         D 0  Basic screen 
         D 1  Main menu screen 
         D 2  Total wind volume/total wind direction adjust screen 
         D 3  Wind direction individual setting screen 
         D 4  Wind direction settings check screen 
         U Ceiling surface 
         W Communication cable (wire)