Page 2 - Table of contents; PRECAUTIONS FOR WASTE DISPOSAL; ENGLISH
– 1 – Table of contents N Safety precaution ................................................................................................. 2 N Names and Functions of Parts ............................................................................. 3 N Setting the Time and Date ....................
Page 3 - Safety precaution; INSTALLATION PRECAUTIONS
– 2 – Safety precaution L Before starting to use the central control, read these “Safety precaution” carefully to ensure proper operation of the central control. L The safety precautions are classified as “ DANGER ” and “ CAUTION ”. Precautions as shown in the column “ DANGER ” indicate that improper...
Page 4 - Names and Functions of Parts
– 3 – Names and Functions of Parts The diagram below shows the central control with its cover closed.You can open the cover downward by placing a hand on the indentation sections on the left and right sides and pulling toward you. RUN / ERROR / PERIODIC CHECK display lamps These display the run stat...
Page 7 - Setting the Time and Date
– 6 – Setting the Time and Date Program running uses the date and time set here as the standard.Please set the current date and time correctly. 2, 4, 6, 8, 10, 12 3, 5, 7, 9, 11 1 1. Press the MENU button and select . Each time you press this button, the display moves to the next step in the sequenc...
Page 8 - How to Make Group Settings
– 7 – 8. Press the SET button. The time hour display section flashes. 9. Press the SELECT ( or ) button or a GROUP No. button to set the time (hour). When you press or , first 09:00 is displayed. You can use the GROUP No. buttons as number keys. Example 1: “--:--” ⇒ You press the 10 (0) button. ⇒ “00:...
Page 10 - How to Make Settings for One Unit
– 9 – How to Make Settings for One Unit When managing an indoor unit with this central control without registering in any group, you can set individual unit management with the operations below. 2, 5, 7 3 4, 6 1 1. Press the MENU button and select . Each time you press this button, the display moves...
Page 11 - How to Set Units not to Be Managed
– 10 – <Changing an indoor unit number> To change the indoor unit number and continue with individual settings, after Step 5 , repeat Steps 6 and 7 . 6. Press the SELECT ( or ) button to set the indoor unit number. 7. Press the SET button. Note To end the setting or to cancel settings being ma...
Page 12 - Consecutive Settings
– 11 – 4. Press the RESET button. The GROUP No. display section becomes blank.Example: “ 00” 5. Press the SELECT ( or ) button to set the indoor unit number. The selected unit number flashes.Example: “ 05” 6. Press the SET button. The UNIT No. lights up and after 2 seconds, flashes.With this, the disp...
Page 14 - CENTER / REMOTE Setting; Setting contents and enabled / disabled button operations; • Setting
– 13 – CENTER / REMOTE Setting Set whether to manage the indoor units being managed centrally using the central control or locally using the remote controller that comes with each indoor unit. Z Setting contents and enabled / disabled button operations Setting contents Enabled / disabled button oper...
Page 16 - How to Run / Stop All
– 15 – How to Run / Stop All This runs or stops all the indoor units being managed. Method A < RUN > Press the RUN ALL button. All the indoor units being managed run and the RUN/ERROR display lamp lights up green. < STOP > Press the STOP ALL button. All the indoor units being managed sto...
Page 17 - How to Run / Stop a Group
– 16 – How to Run / Stop a Group This runs or stops a group. Method A < RUN > With the air conditioners stopped (RUN / ERROR display off), press a GROUP RUN / STOP but- ton All the indoor units in the group run and the RUN / ERROR display lamp lights up green. < STOP > With the air condi...
Page 18 - How to Run / Stop One Unit
– 17 – How to Run / Stop One Unit This runs the selected indoor units. 1 2 3 1. Press the ALL / GROUP / ONE button and select . The options are displayed in the order. 2. Press the SELECT ( or ) button to set the indoor unit number to run or stop. 3. Press the RUN or STOP button. Note This operation...
Page 19 - How to Set Run Details
– 18 – How to Set Run Details This sets the operation mode, temperature, fan speed, and louver direction. 1 4 3 2 5 6 1. Press the ALL / GROUP / ONE button and select either , , or . The options are displayed in the order. 2. Press the SELECT ( or ) button to set the group number or unit number. If ...
Page 20 - How to Set Programs; How to Set “RUN at On time, STOP at Off time”
– 19 – Note This operation is only possible for indoor units whose CENTER / REMOTE setting is “CENTER” or “CENTER and REMOTE”. This operation is disabled on indoor units set to REMOTE.After central control operation, it may take a few minutes until the indoor unit settings change.For automatic opera...
Page 22 - How to Set “RUN and TEMP (temperature setting) at On time”; How to Set “RUN only at On time”
– 21 – 2. How to Set “RUN and TEMP (temperature setting) at On time” 14 13, 15 1 to 12. Input the On time. Execute Steps 1 to 12 on Pages 19 to 20. 13. With the Off time (hour) section displaying “--”, press the SET button. If you press the RESET button with the Off time set, the Off time (hour) sec...
Page 23 - How to Set “STOP only at Off time”
– 22 – 4. How to Set “STOP only at Off time” 9, 11 10 1 to 8. Set the program number. Execute Steps 1 to 8 on Pages 19 to 20. 9. With the On time (hour) section displaying “--”, press the SET button. If you press the RESET button with the On Time input, the On time (hour) display section becomes “--...
Page 24 - How to Copy the Set Contents
– 23 – Z How to Set the Next Day of the Week 1. In Step 7 or later, press the RESET button to return to Step 5 (with day of the week selection flash- ing). Pages 19 to 20 2. Execute Step 5 to select the day of the week to set, then execute Steps 6 or later. Z How to Set the Next Group 1. In Step 5 or...
Page 25 - How to Make Holiday Settings
– 24 – 4. Press the SET button. The contents of the program settings for all days of the week are copied. The copy destination group lights up for 2 seconds, then flashes. <Changing the copy destination group number> After Step 4 , execute the operations in Steps 3 and 4 . <Ending copying>...
Page 26 - Releasing a Holiday Setting
– 25 – 3. Press the SELECT ( or ) button or a GROUP No. button to select the group number to be set. To select all the groups, select “88”. 4. Press the SET button. The group number is decided. 5. Press the SELECT ( or ) button to select the day of the week. Align the mark on top of the days of the ...
Page 27 - How to Confirm Program Settings
– 26 – 2. Press the SET button. 3. Press the SELECT ( or ) button or a GROUP No. button to select the group number to be set. To select all the groups, select “88”. 4. Press the SET button. The group number is decided. 5. Press the SELECT ( or ) button to select the day of the week. Align the mark o...
Page 29 - How to Set an External Timer Unit
– 28 – How to Set an External Timer Unit An off-the-shelf timer can be connected to this central control. Set the indoor units to be run by the external timer. The set indoor unit is run or stopped by the signals from the external timer. 1 2 1. Press the ALL / GROUP / ONE button and select , , or . ...
Page 30 - How to Set Demand Units
– 29 – How to Set Demand Units Demand operation is not available in this central control. When a demand controller is connected to this central control, demand operation becomes possible. For indoor units for which demand is set, signals from the external demand controller change the operation mode ...
Page 31 - There is an abnormality in an air conditioner.
– 30 – When Lights Up This is displayed when an invalid value is set or an invalid button operation is attempted. Check the button opera-tion and unit state (CENTER / REMOTE setting etc.), then try the operation again. When the RUN / ERROR display lamp lights up red or the check display lights up or...
Page 32 - When the Maintenance Display Lights Up or Flashes; The time for periodic inspection has come.
– 31 – When the Maintenance Display Lights Up or Flashes Z The time for periodic inspection has come. If there is one or more units being managed that requires inspection, the maintenance display lights up or flashes. Notify your dealer of the contents displayed. The maintenance display lights up.The...
Page 33 - When the Clean Filter Display; This shows that it is time to clean the air filter. Clean the air filter.
– 32 – When the Clean Filter Display Lights Up / Flashes Z This shows that it is time to clean the air filter. Clean the air filter. For details on how to clean the filter, see the user’s manual that came with the air conditioner.The cumulative running time for even one of the connected indoor units re...
Page 34 - When the Filter Cleaning Is Complete
– 33 – 1. When the maintenance display and “BACKUP” are lit up The outdoor unit is running in emergency mode and inspection is required. Please consult your dealer. 2. When the maintenance display and “1” are lit up The time for periodic maintenance of the outdoor unit already came. Please consult y...
Page 35 - settings of this central control. Please consult your dealer.; What You Should Know before Use; Suction temperature display
– 34 – When the Running State of All or Some of the Indoor Units Set To Be Managed Is Not Displayed Z This may happen due to some inadequacy of the communication lines or the settings of this central control. Please consult your dealer. What You Should Know before Use Z Suction temperature display W...
Page 36 - Emergency stop
– 35 – Z Emergency stop (The operations depend on the jumper line setting. For more information on jumper line settings, consult your dealer.) When the is flashing, an emergency stop signal is being input by the external contact. All the units being managed by this central control are stopped and the...
Page 37 - Error History; Error History Check Method (In Order of Occurrence)
– 36 – Error History Z Error History Check Method (In Order of Occurrence) You can view the month, day, and time at which an error occurred for each indoor unit number and the corre-sponding error code. 1 2 3 3 1. Press the CHECK button and the button at the same time. The flashes and the contents of...
Page 38 - How To Check the Error History for the Displayed Unit Number
– 37 – Z How To Check the Error History for the Displayed Unit Number You can view the month, day, and time at which the most recent error occurred on the indoor unit being dis-played and the corresponding error code. 1 2 3 3 1. Press the CHECK button and the button at the same time. The flashes and ...
Page 39 - Installation
– 38 – L Have the following information available when requesting repairs. L Model name L Installation date L Problem status, as detailed as possible L Address, name, telephone number L Relocation Since expert techniques are required, always con-tact your dealer. In such cases, there will be a fee f...
