Mitsubishi Heavy Industries SC-SL2NA-E User manual

USER’S MANUAL
CENTRAL CONTROL SC-SL2NA-E
USER’S MANUAL
CENTRAL CONTROL SC-SL2NA-E
ENGLISH
MANUEL DE L’UTILISATEUR
COMMANDE CENTRALISEE SC-SL2NA-E
ANWENDERHANDBUCH
ZENTRALSTEUERUNG SC-SL2NA-E
DEUTSCH
ISTRUZIONI PER L’USO
CONTROLLO CENTRALE SC-SL2NA-E
ITALIANO
MANUAL DEL PROPIETARIO
CONTROL CENTRAL SC-SL2NA-E
ESPAÑOL
GEBRUIKERSHANDLEIDING
CENTRALE BEDIENING SC-SL2NA-E
NEDERLANDS
MANUAL DO UTILIZADOR
CONTROLO CENTRAL SC-SL2NA-E
PORTUGUÊS
FRANÇAIS
PJZ012A071
This central control complies with EMC Directive 2004/108/
EC, LV Directive 2006/95/EC.
Cette commande centralisée est conforme à la Directive EMC:
2004/108/EC, LV Directive 2006/95/EC.
Esta control central cumple con la directiva EMC: 2004/108/
EC, LV Directiva 2006/95/EC.
Deze centrale bediening voldoet aan EMC Directive 2004/108/
EC, LV Directive 2006/95/EC.
Dieses Zentralsteuerung erfüllt die EMC Direktiven 2004/108/
EC, LV Direktiven 2006/95/EC.
Questa controllo centrale è conforme alla Direttiva EMC: 2004/
108/EC, LV Direttiva 2006/95/EC.
Esta controlo central está em conformidade com a Directiva
EMC 2004/108/EC e a Directiva LV 2006/95/EC.

– 1 –
Table of contents
■ Safety precaution ................................................................................................. 2
■ Names and Functions of Parts............................................................................. 3
■ Setting the Time and Date.................................................................................... 6
■ How to Make Group Settings ............................................................................... 7
■ How to Make Settings for One Unit ...................................................................... 9
■ How to Set Units not to Be Managed ................................................................. 10
■ Consecutive Settings ......................................................................................... 11
■ CENTER / REMOTE Setting .............................................................................. 13
■ How to Enable / Disable Operations for Each Remote Control Function ........... 14
■ How to Run / Stop All ......................................................................................... 15
■ How to Run / Stop a Group ................................................................................ 16
■ How to Run / Stop One Unit............................................................................... 17
■ How to Set Run Details ...................................................................................... 18
■ How to Set Programs ......................................................................................... 19
1. How to Set “RUN at On time, STOP at Off time” ............................................ 19
2. How to Set “RUN and TEMP (temperature setting) at On time” ..................... 21
3. How to Set “RUN only at On time”.................................................................. 21
4. How to Set “STOP only at Off time”................................................................ 22
■ How to Make Holiday Settings ........................................................................... 24
■ How to Confirm Program Settings...................................................................... 26
■ How to Set an External Timer Unit ..................................................................... 28
■ How to Set Demand Units.................................................................................. 29
■ When Lights Up ........................................................................................ 30
■ When the RUN / ERROR display lamp lights up red
or the check display lights up or flashes....................................................... 30
Method for Checking the Indoor Unit Number
for Which the CHECK Display Is Lit ............................................................. 30
■ When the Maintenance Display Lights Up or Flashes..................................... 31
Method for Checking the Indoor Unit Number
for Which the Maintenance Display Is Lit ..................................................... 31
■ When the Clean Filter Display Lights Up / Flashes....................................... 32
Method for Checking the Indoor Unit Number for Which Clean Filter Is Lit... 32
When the Filter Cleaning Is Complete ............................................................... 33
■ When the Running State of All or Some of the Indoor Units
Set To Be Managed Is Not Displayed............................................................... 34
■ What You Should Know before Use.................................................................... 34
■ Error History....................................................................................................... 36
■ Installation .......................................................................................................... 38
■ After Sales Service ............................................................................................ 38
Thank you very much for employing the Central control of Mitsubishi
Heavy Industries, Ltd.
Before using, read through this instruction manual for proper operation. After
reading through it, carefully store it for future reference. If any trouble should oc-
cur during operation, it will be helpful. Also, read through the instruction manual
which is attached to the air conditioner.
❚ PRECAUTIONS FOR WASTE DISPOSAL
Your central control may be marked with this symbol. It means that waste electrical and electronic equipment (WEEE as in
directive 2002/96/EC) should not be mixed with general household waste. Central control should be treated at an authorized
treatment facility for re-use, recycling and recovery and not be disposed of in the municipal waste stream. Please contact
the installer or local authority for more information.
ENGLISH
This symbol printed in the batteries attached to your central control is information for end-users according to the EU direc-
tive 2006/66/EC article 20 annex II.
Batteries, at their end-of-life, should be disposed of separately from general household waste. If a chemical symbol is
printed beneath the symbol shown above, this chemical symbol means that the batteries contain a heavy metal at a certain
concentration. This will be indicated as follows:Hg:mercury(0.0005%) , Cd:cadmium(0.002%) , Pb:lead(0.004%)
Please, dispose of batteries correctly at your local community waste collection or the recycling center.

– 2 –
Safety precaution
● Before starting to use the central control, read these “Safety precaution” carefully to ensure proper operation of the central control.
● The safety precautions are classified as “ DANGER” and “ CAUTION”. Precautions as shown in the column “ DANGER”
indicate that improper handling could have serious consequences like death, serious injury, etc.
“ CAUTION” might pose a serious problem, depending on the circumstances. Please observe these precautions with great
care, since they are essential to your safety.
● Symbols which appear frequently in the text have the following meaning:
Strictly prohibited. Observe instructions with
great care. Provide positive earthing.
● When you have read the instruction manual, please keep it near at hand for consultation. If someone else takes over as opera-
tor, make sure that the manual is also passed on to the new operator.
❚ INSTALLATION PRECAUTIONS
DANGER
The central control must be installed by your dealer or a qualified professional.
It is not advisable to install the central control yourself, as faulty handling may cause electric shock or fire.
CAUTION
Make sure to perform grounding work. Depending on the place of installation, a leakage breaker
may be necessary.
Do not connect the ground wire to any gas pipes, water
pipes, lightning conductors or a ground wire connected
to telephones. Incomplete grounding may cause electric
shock.
If a leakage breaker is not installed, electric shock may
happen.
Consult your dealer.
❚ OPERATION PRECAUTIONS
DANGER
If the central control is submerged under water due to
a natural disaster such as a flood or a typhoon, consult
your dealer.
If the central control is under abnormal conditions, stop
the operation, turn the power supply switch off and con-
sult your dealer.
Operating the central control under such conditions may
lead to failure, electric shock and/or fire.
Continuing operating the central control under abnormal
conditions may lead to failure, electric shock and/or fire.
CAUTION
Do not handle with wet hands. Do not pull the connecting wire. Do not wash the central control with
water.
This may cause an electric
shock or failure.
If the core wire is disconnected,
it could cause a short-circuit.
It may cause electric shock or
failure.
❚ PRECAUTIONS FOR RELOCATION OF REPAIR
DANGER
Never modify of disassembling the central control. If it
requires service, consult your dealer.
If it is required to relocate the central control, consult a
dealer or specialist.
If servicing is inadequate, electric shock and/or fire may
occur.
Improper installation of the central control may cause
electric shock and/or fire.

– 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 status for each group.
RUN: Lit up green There is at least one running indoor unit in the group.
STOP: Off All the indoor units in the group are either stopped or unregistered (not con-
nected).
ERROR: Lit up red There is at least one abnormal indoor unit in the group.
Note
The button labels comes with the central control, so write the connected group on each label and paste it in the
space above the correct button.
GROUP RUN / STOP buttons
These buttons run / stop the specified group.
GROUP No. buttons
These are used as group selection buttons when setting the units to be managed.
When setting the date and time, they are used as the number keys.
(In that case, 11-16 are not used.)
Example: To input “09”, press the 10 (0) button, then the 09 button. To input “12”, press the 01
button, then the 02 button. After you have pressed the (01) then (02) buttons, if you press (03),
“23” is displayed.
LCD display section
STOP ALL button
Stops all the indoor units being managed.
RUN ALL button
Runs all the indoor units being managed.
Cover

– 4 –
CENTER / REMOTE display
Displays which is in effect, the central control or the local remote controllers.
PROGRAM SET display
Displayed when a program is being set.
TIME SET display
Displayed when the current date and time are being set.
TIME display
Displays the time.
GROUP SET display
Displayed when the units to be managed are being set.
Program days of the week display
is displayed above today’s day of the week and _ is displayed under each day of
the week for which the program has already been set.
ALL / GROUP / ONE display
Displays whether operations on this central control are for
all units, one group of units, or one unit.
GROUP No. / UNIT No. display
Displays the group number and indoor
unit number being set or monitored.
PROGRAM display
Displays the contents of the program set.
PROGRAM No. display
Displays the numbers of the programs that have been set.
MODE display
Displays the operation mode.
DEMAND display
Displayed during demand input.
MENU button
This button selects the setting mode.
ALL / GROUP / ONE button
This button selects ALL, GROUP, or ONE to be operated.
SELECT ( or ) button
This button is primarily used for selecting the group number
or unit number.
SET button
This button confirms settings.
RESET button
Pressing this button during a setting operation cancels the last step.
CENTER / REMOTE button
This button selects centralized control or local remote control.
MODE button
This button selects the operation mode.
FAN SPEED button
This button adjusts the fan speed.
DEMAND SET button
This button sets the indoor unit for demand.
The diagram below shows the central control with its cover open.
Also, for the sake of the explanation, all the contents of the LCD display section are shown.

– 5 –
REMOTE CONTROL OPERATION ENABLE / DISABLE display
Displays items for which remote control operation is disabled.
HOLIDAY SET display
Displayed when a program for holidays is set.
INVALID INPUT display
Displayed when a button input is invalid.
FAN SPEED display
Displays the fan speed.
MAINTENANCE display
Displayed when there is a managed unit requiring a check.
PROGRAM CONFIRM display
Displayed when a set program is displayed.
CHECK display
Displayed when there is a unit being managed in which an error has occurred.
CLEAN FILTER display
Displayed when there is a unit being managed
whose filter needs to be cleaned.
ROOM TEMPERATURE display
Displays the room temperature.
OUTDOOR UNIT No. display
Displays the outdoor unit number in the ROOM
TEMPERATURE display section.
MANAG. UNIT NUM display
Displays the number of units managed in the
SET TEMPERATURE display section.
SET TEMPERATURE display
Displays the set temperature.
LOUVER display
Displays the louver direction.
TIMER INPUT display
Displayed when an external timer is being input.
RUN button
This button runs indoor units.
STOP button
This button stops indoor units.
CHECK button
This button is for service.
During normal operation, do not press this button.
FILTER RESET button
This button resets the CLEAN FILTER display.
Press this button after cleaning the air filter.
TEMP ( or ) button
This button sets the temperature.
LOUVER button
This button adjusts the louver direction.
TIMER INPUT SET button
This button sets an indoor unit for which operation by external timer is enabled.

– 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 sequence in the diagram below.
The flashes.
2. Press the SET button.
The lights up and the year display section flashes.
3. Press the SELECT ( or ) button or a GROUP No. button to set the year.
Example: When inputting “09” with the GROUP No. buttons to set the year 2009, press the 10 (0) button, then
the 09 button.
4. Press the SET button.
The month display section flashes.
5. Press the SELECT ( or ) button or a GROUP No. button to set the month.
Example: When inputting “07” with the GROUP No. buttons to set July, press the 10 (0) button, then the 07
button.
6. Press the SET button.
The day display section flashes.
7. Press the SELECT ( or ) button or a GROUP No. button to set the day.
Example: When inputting “20” with the GROUP No. buttons to set the 20th, press the 02 button, then the
10 (0) button.
Off
Day display section
Month display section
Year display section

– 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:--” ⇒You press the 08 button. ⇒“08:--”
Example 2: “--:--” ⇒You press the 01 button. ⇒“01:--” ⇒You press the 03 button. ⇒“13:--”
10. Press the SET button.
The time minute display section flashes.
11. Press the SELECT ( or ) button or a GROUP No. button to set the time (minute).
You can use the GROUP No. buttons as number keys.
Example: “13:00” ⇒You press the 02 button. ⇒“13:02” ⇒You press the 06 button. ⇒“13:26”
12. Press the SET button.
The current date and time is confirmed.
It is displayed for 2 seconds, then the display returns to normal.
Note
To cancel a setting that is underway, press the MENU button.
Pressing the RESET button cancels the last step.
If the time setting is incorrect, set the correct time.
The time is accurate to within about 10 minutes per year.
How to Make Group Settings
Set indoor units to be managed as groups as management subjects (units to be managed) for this central con-
trol.
Important
Since the central control is shipped with all indoor units set as not being managed, always set indoor units to be
controlled by this central control as units to be managed.
Attention
Indoor units can not be run from this central control until group settings are made.
Do not make any group settings for two minutes after starting or stopping a unit.
2, 5
34
1
•
•
•
•
•
•
•

– 8 –
1. Press the MENU button and select .
Each time you press this button, the display moves to the next step in the sequence in the diagram below.
The flashes.
2. Press the SET button.
The lights up and “01-00” flashes.
3. Press the GROUP No. button for the group to be set.
The selected group number flashes.
Example: 02-00
4. Press the SELECT ( or ) button to set the indoor unit number.
The selected unit number flashes.
Example: 02-05
Steps 3and 4can be in either order.
5. Press the SET button.
The group number and unit number light up and after 2 seconds, flash.
With this, the display unit number is registered as the display group number.
If you register a unit number that had not been registered before this, the number of managed units increases.
<Changing an indoor unit number>
To change an indoor unit number within the same group, repeat Steps 4and 5.
<Changing the group number>
To change the group number and to make group settings, repeat Steps 3to 5.
Note
To end the setting or to cancel settings being made, press the MENU button.
It is possible to set units with consecutive addresses all at once. Page 11
•
•
Off

– 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 to the next step in the sequence in the diagram below.
The flashes.
2. Press the SET button.
The lights up and “01-00” flashes.
3 . Press the RESET button.
The GROUP No. display section flashes “--”.
Example: “-- - 00”
4. Press the SELECT ( or ) button to set the indoor unit number.
The selected unit number flashes.
Example: “-- - 05”
5. Press the SET button.
“- -” and the indoor unit number light up and after 2 seconds, flash.
The displayed unit number is now registered for individual management. If you register a unit number that had
not been registered before this, the number of managed units increases.
Off

– 10 –
<Changing an indoor unit number>
To change the indoor unit number and continue with individual settings, after Step 5, repeat Steps 6and 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 made, press the MENU button.
An indoor unit set individually can not be set for program operation or other group settings from this central con-
trol. It is subject to “RUN ALL”, “STOP ALL”, and emergency stop input.
If you press a GROUP No. button in 3to 7, you can make a group setting. Page 8 Step3
You can also make these settings from partway through group settings (Page 7).
It is possible to set units with consecutive addresses all at once. Page 11
How to Set Units not to Be Managed
To set an indoor unit set for group or individual management to not be managed, use the following operations.
A unit set not to be managed is not even subject to “RUN ALL”, “STOP ALL”, and emergency stop input.
2, 6, 8
3, 4
5, 7
1
1. Press the MENU button and select .
Each time you press this button, the display moves to the next step in the sequence in the diagram below.
When you select , the display flashes.
The flashes.
2. Press the SET button.
The lights up and “01-00” flashes.
3. Press the RESET button.
The GROUP No. display section flashes “--”.
Example: “-- - 00”
•
•
•
•
•
Off

– 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 display unit number is registered as not being managed.
When you set a registered unit number as not being managed, the number of managed units decreases.
[Changing an indoor unit number]
To change the indoor unit number and continue with setting another unit to not be managed, after Step 6, repeat
Steps 7and 8.
7. Press the SELECT ( or ) button to set the indoor unit number.
8. Press the SET button.
Note
To end the setting or to cancel settings being made, press the MENU button.
If you press a GROUP No. button in 3to 8, you can make a group setting. Page 8 Step 3
You can also make these settings from partway through group settings (Page 7).
It is possible to set units with consecutive addresses all at once. Page 11
Consecutive Settings
To set multiple indoor units with consecutive addresses at one time, execute “Group Settings” Step 5or “One
Setting” Step 5or “Units not to Be Managed” Step 6, then set the following.
1, 32
1. Hold down the SET button (for at least one second).
Consecutive settings start from the indoor unit number that has been set. The UNIT No. display section be-
comes “--”.
The consecutive setting starting unit number is displayed and the end unit is displayed flashing in the column
at the bottom.
•
•
•
•

– 12 –
2. Press the SELECT ( or ) button to select the consecutive setting end unit number.
3. Press the SET button.
The consecutive setting end unit number lights up and after 2 seconds, flashes.
Pressing the SELECT ( or ) button returns the display to 2.
Note
To end the setting or to cancel settings being made, press the MENU button.
Pressing the RESET button or a GROUP No. button ends consecutive setting.
Convenient Functions
The number of units currently being managed is displayed as .
To register another unit in the same group Press the or button. Press the SET
button.
To register the displayed unit in a different group Press that GROUP No. button. Press
the SET button.
To register the displayed unit as an ONE (individual) unit Press the RESET button. Press
the SET button.
To set the displayed unit as not managed Press the RESET button. Press the RESET button.
Press the SET button.
To end group registration Press the MENU button. The display returns to the normal status.
The maximum number of units that can be managed is either 48 or 64, depending on the connected indoor unit
model. To manage more than this number of units, it is necessary to use more than one of these central controls.
Please consult your dealer.
•
•

– 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.
❚ Setting contents and enabled / disabled button operations
Setting contents Enabled / disabled button operations
CENTER Operation is only possible from the central control. Operation with an
indoor unit’s remote controller is not possible.
CENTER and REMOTE Operation is possible from the central control and from an indoor unit’s
remote controllers. The last one pushed takes precedence.
REMOTE Operation from the central control is not possible. Operate from an indoor
unit’s remote controller.
• Setting
2
31
1. Press the ALL / GROUP / ONE button and select either , , or .
The options are displayed in the order.
Select all indoor units, a group of indoor units, or one indoor unit to be run or stopped.
2. Press the SELECT ( or ) button to set the group number or unit number.
If ALL is selected in Operation 1, skip Operation 2.
To select all the groups, select “88”.
3. Press the CENTER/REMOTE button and select , , or .
The options are displayed in the order.
The displayed operations subject is set.
Note
When multiple central controls are connected within the same indoor unit, set this setting (CENTER / REMOTE)
the same on all of them.
If the switching jumper line J1 is cut, the CENTER / REMOTE button is disabled.
For more information on jumper line settings, consult your dealer.
This setting can not be made during DEMAND or emergency stop input.
•
•
•

– 14 –
How to Enable / Disable Operations for Each Remote Control Function
It is possible to disable some operation functions (“temperature”, “operation mode”, “fan speed”, “run / stop”) for
the indoor unit’s remote controllers.
(4)3, 521
1. With normal running or stopping display (not in any setting mode *), press the ALL / GROUP / ONE
button and select either , , or .
The options are displayed in the order.
* The display, display, display, display, and
display are all off and no unit is being checked (Pages 29, 31, 35).
2. Press the SELECT ( or ) button to set the group number or unit number.
If ALL is selected in Operation 1, skip Operation 2.
To select all the groups, select “88”.
3. Press the SET button.
The key mark flashes.
4. Press the button for the function for which remote control operation is to be disabled (TEMP ( or ),
MODE, FAN SPEED, or RUN/STOP).
When a button is pressed, the display for that function lights up.
When you press that button again, that display goes out.
The displayed functions are disabled for the remote controllers.
5. Press the SET button.
If you have disabled at least one remote control operation, the key mark lights up.
Note
To cancel the settings being made, press the RESET button.
If the switching jumper line J1 is cut, this operation is disabled.
For more information on jumper line settings, consult your dealer.
When multiple indoor units are connected to one remote controller, if you make this setting for any one of the
indoor unit numbers, this is reflected in the remote controller for that indoor unit.
•
•
•
Key mark
FAN SPEED
TEMPERATURE
RUN / STOP
OPERATION MODE

– 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 stop and the RUN/ERROR display lamp goes out.
 Method B
1 2
< RUN >
1. Press the ALL / GROUP / ONE button and select ALL.
The options are displayed in the order.
2. Press the RUN button.
<STOP>
1. Press the ALL / GROUP / ONE button and select ALL.
The options are displayed in the order.
2. Press the STOP button.
Note
The CENTER / REMOTE setting for indoor units can only be made for indoor units set to CENTER or CENTER
and REMOTE.
This operation is disabled on indoor units set to REMOTE.
•
RUN
STOP

– 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 conditioners running (RUN / ERROR display lamp lit up green), press a GROUP
RUN / STOP button.
All the indoor units in the group stop and the RUN / ERROR display lamp goes out.
Method B
1 2 3
1. Press the ALL / GROUP / ONE button and select GROUP.
The options are displayed in the order.
2. Press the SELECT ( or ) button to set the group number to run or stop.
If you select Group 88, all the registered groups run or stop.
3. Press the RUN or STOP button.
Note
The CENTER / REMOTE setting for indoor units can only be made for indoor units set to “CENTER” or “CENT-
ER” and “REMOTE”.
This operation is disabled on indoor units set to “REMOTE”.
•
RUN / ERROR display lamp
GROUP RUN / STOP button

– 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 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”.
<Example of RUN display>
<Example of STOP display>
•

– 18 –
How to Set Run Details
This sets the operation mode, temperature, fan speed, and louver direction.
1 432 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 ALL is selected in Operation 1, skip Operation 2.
To select all the groups, select “88”.
3. Press the MODE button and select the operation mode.
The options are displayed in the order.
On some models of indoor units, a control select button can be set to display “AUTO”. For more information
on the control select button, consult your dealer.
4. Press the TEMP button ( or ) to set the temperature.
Set between 18.0°C and 30.0°C.
Note
A measure of temperature setting
Cool................26 to 28°C
Dry .................21 to 24°C
Heat ...............22 to 24°C
Fan .................No temperature setting is required.
5. Press the FAN SPEED button and set the fan speed.
The options are displayed in the order.
4th speed
The unit operates with the maximum fan speed.
On some models of indoor units, a control select button can be set to display “4th speed”.
For more information on the control select button, consult your dealer.
6. Press the LOUVER button and set the louver direction.
1 2 3 4 4
The options are displayed in the order.
7. Set ENABLE / DISABLE operations for each remote control function. Page 14
4th speed
3rd speed 2nd speed 1st speed 2nd speed 3rd speed

– 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 operation, the indoor units automatically switch between “Cool” ⇔“Heat” according to the differ-
ence between the set temperature and the room temperature to hold the room temperature constant. (This only
applies to heat recovery systems.)
When you press the TEMP button and raise or lower the set temperature, the units may stop.
This is because the temperature adjuster has worked, not because anything is wrong.
For Dry operation, the fan speed automatically cycles between Weak and Stop according to the room tempera-
ture.
For indoor units with different operation modes, with outdoor units not capable of mixed cooling and warming
operation, the “MODE” display flashes.
Some operations can not be set for some indoor unit models. Refer to the user’s manual for the indoor unit.
How to Set Programs
These settings are made group by group.
For each day of the week, up to four on / off times, run / stop, and set temperature can be set.
The four types of patterns on the below can be set for one program.
1. RUN at On time, STOP at Off time
2. RUN and TEMP (temperature setting) at On time
3. RUN only at On time
4. STOP only at Off time
1. How to Set “RUN at On time, STOP at Off time”
2, 4, 6, 8, 10, 12, 14, 16
3, 5, 7, 9, 11, 13, 15
3, 9, 11, 13, 15
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1. Press the MENU button and select .
Each time you press this button, the display moves to the next step in the sequence in the diagram below.
The flashes.
2. Press the SET button.
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Off