Mitsubishi Heavy Industries eco touch RC-EX1 User manual

eco touch REMOTE CONTROL RC-EX1
USER’S MANUAL
This user’s manual describes cautions for safety. Please read this manual carefully before use in order
to operate the unit properly.
Keep this manual, after reading, at a safe place where you can consult it whenever it is necessary.
When the ownership of the unit is changed, please be sure to transfer this manual and the “Installation
Manual” (in CD-R) to a new owner.
It is not recommended for a user to install or move the unit by the user’s on discretion. (Safety or
functions may not be assured.)
Thank you very much for your purchasing the eco touch REMOTE CONTROL
for our packaged air conditioner.
PJZ012A091

— 1—
Contents
1. Safety precautions …………………2
2.
Functions and menu items of Remote
Control (R/C) …………………………4
3.
Quick reference of menu items ………8
4. Menu items ………………………… 10
Run/Stop ………………………………………… 10
Change operation mode ………………………… 11
Change set temperature ………………………… 11
Change ap direction …………………………… 12
Change fan speed ……………………………… 12
High power operation …………………………… 13
Energy-saving operation ………………………… 13
Energy-saving settings ………………………… 17
Individual ap control …………………………… 22
External ventilation ……………………………… 25
Initial settings …………………………………… 26
Timer ……………………………………………… 30
Weekly timer ……………………………………… 34
Home leave mode ……………………………… 38
Administrator settings …………………………… 41
Select the language ……………………………… 52
5. Maintenance ……………………… 53
6. Useful information………………… 55
Error display ……………………………………… 55
7. After-sale service ………………… 57

— 2—
1. Safety precautions
Safety precautions
●Please read the precautions written here carefully to operate the unit properly. You are required to observe these
fully because every item of these instructions is important for safety.
WARNING
Failure to follow these instructions may result in serious consequences such as death,
severe injury, etc.
CAUTION
Failure to follow these instructions may cause injury, property damage or, serious
consequences depending on.
●The following pictograms are used in the text.
Never do. Always follow the instructions given.
Be sure to ground the unit. Absolutely keep wet hands away.
Absolutely keep water away.
●
Keep this manual at a safe place where you can consult with whenever necessary. Show this manual to installers when moving
or repairing the unit. When the ownership of the unit is transferred, this manual and the “Installation Manual” (in CD-R) should
be given to a new owner.
●Electrical wiring work must be implemented only by qualified specialists.
WARNING
Consult your dealer or a professional contractor to install the unit.
Improper installation made on your own may cause electric shocks, fire or dropping of the unit.
Consult your dealer when moving, disassembling or repairing the unit.
Never modify the unit.
Improper handling may result in injury, electric shocks, fire, etc.
Take care to protect terminal connections from external forces or stress caused by wiring.
Improper connection or fixing could cause heat generation, smoke or fire.
Do not install the unit at a place where inflammable gas may generate, flow in, accumulate or leak.
Inflammable gas could catch fire if it accumulates around the unit.
Avoid using combustible substances (hair spray, insecticide, etc) near the unit.
Do not use benzene or paint thinner to clean the unit.
It could cause cracks, electric shocks or fire.
The unit should not be used in inappropriate environment.
Using the unit at the following places could deteriorate its performance significantly or cause electric
shocks, break-down, smoke or fire as a result of corrosion.
∙
Where air contains dense oil mist, steam, organic solvent vapor, corrosive gas (ammonium, sulfuric compound, acid, etc)
∙ Where acidic or alkaline solution, cosmetics, special spray, etc. are used frequently
∙
Where oil mist generates
∙ Where dense cigarette smoke exists
∙ Where dust floats in air
∙
Where water vapor generates or heavily humid area

— 3—
The maximum voltage connectable to the remote control is DC 18 V. Do not connect to AC220~240V or
380/415V.
It could cause breakage, ignition or fire.
Stop operation under abnormal situation.
If continued, it could result in break-down, electric shocks, fire, etc.
If any abnormal condition (burnt odor etc.) occurs, stop operation, turn off the power switch and consult your dealer.
Stop operation when any anomaly is detected.
If operation is continued, it could cause fire or break-down. Consult you dealer.
CAUTION
Do not use or let use the unit or remote control as play equipment.
Improper operations could cause ill health or health disorder.
Never disassemble the remote control.
If you touch internal parts accidentally, you could get electric shocks or cause trouble.
Consult your dealer when it is necessary to inspect its interior.
Do not wash the remote control with water or liquid.
It could cause electric shocks, fire or break-down.
Do not install the remote control where it may be splashed with water.
If water gets into the device accidentally, it could cause electric shocks or breaking electronic parts.
Do not touch electric parts or operate buttons or screens with wet hands.
It could cause electric shocks, fire or break-down.
Be sure to stop operation and shut down the circuit breaker before starting maintenance work.
It could cause electric shocks or injury.
Install the remote control securely where it can be stable.
Insufficient strength or improper installation could cause the remote control to drop off.
Do not dispose the remote control by yourself.
It could destruct the environment. Ask your dealer when it is necessary to dispose the remote control.
The remote control should not be installed where it is exposed to direct sunlight or the ambient
temperatures become higher than 40°C or lower than 0°C.
It could cause deformation, discoloration or break-down.
Do not use benzene, paint thinner, wipes etc. to clean the remote control.
It could discolor or break-down the remote control. Wipe it with a piece of cloth which is squeezed
tightly after wetting with diluted neutral detergent. Finish up the cleaning by wiping with a piece of dry
cloth.
Do not pull or twist the cable of the remote control.
It could cause break-down.
Do not tap the remote control buttons or screen with pointed objects.
It could damage or cause break-down.

— 4—
① switch (Run/Stop switch)
One push on the button starts operation and
another push stops operation. (󰾼page 10)
② switch (High Power switch)
Pushing this button starts the high power
operation. (󰾼page 13)
③ switch (Energy Saving switch)
Pushing this button starts the energy-saving
operation. (󰾼page 13)
④ Operation lamp
This lamp lights in green (yellow-green) during
operation. It changes to red if any error occurs.
⑤ LCD (With backlight)
A tap on the LCD lights the backlight.
The backlight turns off automatically if there is no
operation for certain period of time.
Lighting period of the backlight lighting can be changed.
(󰾼page 29)
If the backlight is ON setting, when the screen is
tapped while the backlight is turned off, the
backlight only is turned on. (Operations with
switches 󰴤, 󰴥and 󰴦are excluded.)
⑥ USB port
USB connector (mini-B) allows connecting to a
personal computer.
For operating methods, refer to the instruction
manual attached to the software for personal
computer (eco-touch remote control RC-EX1, utility
software).
Touch panel system, which is operated by tapping the LCD screen with a finger, is employed for any operations
other than the 󰴤Run/Stop, 󰴥High power and 󰴦Energy-saving switches.
⑤LCD display (With backlight)
2. Functions and menu items of the Remote Control
Names and functions of sections on the R/C (Operating section)
③ switch
④Operation lamp
⑥USB port (mini-B)
① switch
② switch
Note
· When connecting to a personal computer, do not connect
simultaneously with other USB devices.
Please be sure to connect to the computer directly, without
going through a hub, etc.

— 5—
① Clock, R/C name display
Displays the current time (󰾼page 27) and the
name of R/C (󰾼page 47)
② Icon display
Each icon is displayed when one of following
settings is going on.
When the demand control
is effective.
When setting is made
from the sub R/C.
(󰾼page 14)
When the central control
(Optional) is running. When the periodical
inspection is necessary.
(󰾼page 55)
During the ventilation
operation
(󰾼page 25)
When ”filter sign” is up.
(󰾼page 53)
When the Permission/
Prohibition setting is made.
(󰾼page 43)

When the weekly timer
is set.
(󰾼page 34)
When the peak-cut timer is set.
(󰾼page 18)
③Menu button
When setting or changing other than the following
󰴧-󰴫, tap the menu button. When menu items are
displayed, select one and set.
④
Change operation mode button (󰾼page 11)
Displays the operation mode which is selected
currently. Tap this button to change the operation
mode.
⑤ Change set temp button
(󰾼page 11)
Displays the temperature which is set currently.
Tap this button to change the set temperature.
⑥ Flap direction button
(󰾼page 12 )
Displays the flap direction which is selected
currently. Tap this button to change the flap
direction.
⑦ Fan speed change button
(󰾼page 12 )
Displays the fan speed which is selected currently.
Tap this button to change the fan speed.
⑧ Timer button
(󰾼page 30)
Displays simplified contents of the timer which is
set currently.
(When two or more timers are set, contents of the timer
which will be operated immediately after is displayed.)
Tap this button to set the timer.
⑨ Message display
Status of air conditioner operation and messages
of the R/C operations etc. are displayed.
* All icons are shown for the sake of explanation.
①Clock, R/C name display
④Change operation
mode button
TOP screen
⑧Timer button
②Icon display
③Menu button
⑤Change set temp
button
⑥Change flap
direction button
⑦Change fan speed
button
⑨Message display
Names and functions of sections on R/C (Display)

— 6—
Menu item
Main menu
Basic operation
…………………………………………………………………… 10
Energy-saving setting
…………………………………………………………………… 17
…………………………………………………………………… 25
Ventilation
…………………………………………………………………… 22
Individual ap control
Run/Stop ………………………………………………………… 10
Change operation mode ………………………………………… 11
Change set temp ………………………………………………… 11
Change ap direction …………………………………………… 12
Change fan speed ……………………………………………… 12
High power operation …………………………………………… 13
Energy-saving operation………………………………………… 13
Sleep timer ……………………………………………………… 18
Peak-cut timer …………………………………………………… 18
Automatic temp set back ……………………………………… 21
Timer
…………………………………………………………………… 30
Set ON timer by hour …………………………………………… 31
Set OFF timer by hour…………………………………………… 33
Set ON timer by clock …………………………………………… 33
Set OFF timer by clock ………………………………………… 33
Conrm …………………………………………………………… 34
Initial settings
…………………………………………………………………… 26
Clock setting ……………………………………………………… 27
Date & time display ……………………………………………… 28
Summer time……………………………………………………… 28
Contrast …………………………………………………………… 28
Backlight ………………………………………………………… 29
Controller sound ………………………………………………… 29
…………………………………………………………………… 34
Weekly timer
…………………………………………………………………… 38
Home leave mode
Administrator settings
…………………………………………………………………… 52
Select the language
…………………………………………………………………… 53
…………………………………………………………………… 55
Filter sign reset
Comtact company & Error display
…………………………………………………………………… 41
Permission/Prohibition setting ………………………………… 43
Silent mode timer ………………………………………………… 44
Setting temp range ……………………………………………… 45
Temp increment setting ………………………………………… 46
R/C display setting ……………………………………………… 47
Change administrator password ……………………………… 50
Change set temp display ……………………………………… 51

— 7—
Main menu
R/C settings ……………………………………………………
Main/Sub of R/C …………………………………
Return air temp……………………………………
R/C sensor ………………………………………
R/C sensor adjustment …………………………
Operation mode …………………………………
Select operation mode …………………………
˚C / ˚F ………………………………………………
Fan speed …………………………………………
External input ……………………………………
Ventilation setting…………………………………
Fan control ………………………………………
Auto-restart ………………………………………
Auto temp setting…………………………………
Auto fan speed ……………………………………
IU settings ……………………………………………………
High ceiling ………………………………………
Filter sign …………………………………………
External input 1……………………………………
External input 1 signal ……………………………
External input 2……………………………………
External input 2 signal ……………………………
Heating thermo-OFF temp adjustment ………
Return air sensor adjustment……………………
Fan control in cooling thermo-OFF ……………
Fan control in heating thermo-OFF ……………
Anti-frost temp ……………………………………
Anti-frost control …………………………………
Drain pump operation ……………………………
Residual fan operation in cooling ………………
Residual fan operation in heating ………………
Intermittent fan operation in heating……………
Fan circulator operation …………………………
Control pressure adjust …………………………
Auto operation mode ……………………………
Thermo. rule setting………………………………
Auto fan speed control …………………………
IU overload alarm…………………………………
Service & Maintenance
IU address …………………………………………
Next service date …………………………………
Check run mode …………………………………
Operation data ……………………………………
Saving IU settings ………………………………
Special settings …………………………………
Installation settings ……………………………………………………
Installation date …………………………………
Company information ……………………………
Test run ……………………………………………
Static pressure adjustment
Change auto-address
Address setting of main IU
IU back-up function ………………………………
……………………………………………………
Please refer to
[Installation
manual]

— 8—
3. Quick reference of menu items
It is necessary to input the Administrator password for menu items showing.
Setting and display items Details Reference
Energy-saving setting
Administrator password
Sleep timer Set the time period from start to stop of operation.

The selectable range of setting time is from 30 to 240 minutes
(at 10-minute intervals).

When the setting is “Enable”, this timer will activate whenever
any operation starts.
17 page
Peak-cut timer Set the times to start and stop the capacity limiting operation and
the peak-cut %.

Peak-cut 40% means operating at 40% of nominal capacity

4 operation patterns per day can be set at the maximum.

The setting time can be changed at 5-minute intervals.

The selectable range of peak-cut % is from 0 to 80% (at 20%
intervals).

Holiday setting (including temporary day off) is available.
* Clock setting is necessary.
18 page
Automatic temp
set back
It returns to the set temperature when the set time is counted up.

The selection range of the set time is from 20 to 120 minutes (at
10-minute intervals).
21 page
Individual flap control Set the moving range (upper and lower limit positions) of the flap
at each air outlet of IU. 22 page
External ventilation The ventilation is turned on or off.


If the ventilation is set at “Independent operation”, the ventilator
can be turned on/off without any combination of the IU operation.
25 page
Filter sign reset Reset the filter sign.
Set next cleaning date. 53 page
Initial settings Clock setting Set and correct the current date and time.

When the power supply is interrupted for 80 hours or less, the
clock continues to operate with the built-in backup batteries.
If it is interrupted for more than 80 hours, it is necessary to
renew the setting.
27 page
Date & time display Set whether the date and time are displayed or not, and select 12H
or 24H. 28 page
Summer time Current time is advanced or delayed by 1 hour. 28 page
Contrast Contrast of LCD can be adjusted. 28 page
Backlight
Select whether the backlight is used or not, and set the lighting time.
29 page
Controller sound
Select whether the controller sound is actuated at the touch panel
operation or not.
29 page
Timer Set ON timer by
hour
Set the time to operate the unit after stopping the operation within
the range of 1 – 12 hours (at 1-hour intervals). 31 page
Set OFF timer by
hour
Set the time to stop the operating unit within the range of 1 – 12
hours (at 1-hour intervals). 33 page
Set ON timer by
clock
Set the clock time to start operation.

The time can be set at 5-minute intervals.


It can be selected from once (only one day) or every time (every day).
* Clock setting is necessary to set the timer.
33 page
Set OFF timer by
clock
Set the time to stop operation.

The time can be set at 5-minute intervals.

It can be selected from once (only one day) or every time (every day).
* Clock setting is necessary to set the timer.
33 page
Administrator password

— 9—
Setting and display items Details
Reference
Weekly timer On timer or Off timer on weekly basis can be set.

8-operation patterns per day can be set at the maximum.

The time can be set at 5-minute intervals.

Holiday setting (including temporary day off) is available.
* Clock setting is necessary to set the time.
34 page
Home leave mode
Administrator password
When the unit is not used for a long period of time, the room
temperature is maintained at a moderate level, avoiding extremely
hot or cool temperatures.

Cooling or heating is operated according to the outdoor
temperature and the set temp.
Set temp and fan speed can be set.
38 page
Administrator settings
Administrator password
Permission/
Prohibition setting
Set the permission/prohibition for each of following operations:
[Run/Stop], [Change set temp], [operation mode], [Change flap
direction], [Individual flap control], [Change fan speed], [High
power operation], [Energy-saving operation], [Timer] and [Weekly
timer]
43 page
Silent mode timer The period of time to operate the unit by prioritizing the quietness
can be set.

Starting and stopping times for the silent mode operation can be
set at 5-minute intervals.
* Clock setting is necessary to set the time.
44 page
Setting temp
range
Restrict the setting range of temperature.

Temperature range can be restricted depending on operation
modes.
45 page
Temp. increment
setting Set the interval for setting temperature (0.5°C/1.0°C). 46 page
RC display setting Register the names of remote control and indoor unit.
Set Yes or No for the need of indoor temperature display.
Set Yes or No for the need for the display of error code, heating
standby, defrosting operation on and automatic cooling/heating.
47 page
Change
administrator
password
Change the administrator password. 50 page
Set temp display Set temperature display method can be selected.
Select a actual temperature or the difference from the base temp
such as +1,+2°C or -1,-2°C.
51 page
Select the language Set the language to be displayed on the R/C. 52 page
Contact campany & Error display Address of the service contact is displayed. 55 page

— 10 —
1
Run
Push the switch.
Operation lamp (green) lights and operation starts.
2
Stop
Push the switch.
The operation lamp turns off and the operation stops.
When the operation stops, all operation buttons on the screen turn off.
When the set lighting time of backlight (
󰾼
page 29) is counted up, the
backlight turns off.
When the screen is tapped, the backlight lights, and all operation
buttons are displayed.
4. Menu items
Run/Stop
Note
· Do not shut down the power supply immediately after the stop of operation.
It should be waited for more than 5 minutes till the residual operation time of drain
motor is counted up. Otherwise, it could cause water leakage or breakdown.
· A message ”Invalid request” may be displayed when a button is pushed. This is not a fault but it is because the button operation is set
to the “Disable”. (󰾼page 39)
· The unit starts to operate initially with the following settings after the power on. These settings can be changed as desired.
Operation mode … With auto mode: Auto cooling
Without auto mode: Cooling
Set temp … 23.0°C
Fan speed … High
Flap position … Level
· In the following cases, a message “Operation mode invalid” is displayed and it changes to the fan operation, because operation modes
are not matched.
When different operation modes are selected between IUs which are connected to a OU that do not allow mixed operation of cooling
and heating.
Advice

— 11 —
1
Tap the Set temp button on the TOP screen.
2 When the Change set temp screen is displayed, select the
temperature as desired with using    buttons.
3
After selecting the set temp, tap the Set button.
4 The display returns to the TOP screen after tapping the Set
button.

For allowable temperature setting ranges, refer to the range setting of set temp
(󰾼page 45).
 Reference set temp
Cooling … 26 to 28°C
Dry … 24 to 26°C
Heating … 20 to 24°C
Fan … Setting temp is not required.

If the Auto is selected for the set temp, the set temp display shows “0”.
Temperature can be selected within the range of -6°C to +6°C with using  
▼buttons. Temperature increases by 1°C at each tap on the button or
decreases by 1°C at each tap on the ▼button.
(If “0” is set, it becomes 24°C for the cooling operation or 26°C for the heating operation.)

If the
Back
button is tapped without tapping the
Set
button, the selected
set temp is invalidated and the display returns to the TOP screen.
1
Tap the Change operation mode button on the TOP screen.
2 When the Change operation mode screen is displayed, tap the
button of desired mode.
3 When the operation mode is selected, the display returns to the
TOP screen.
Icons displayed have the following meanings.
Change set temp
 Operation modes which cannot be selected depending on combinations of IU and
OU are not displayed.
 When the Auto is selected, the cooling and heating switching operation is
performed automatically according to indoor and outdoor temperatures.
Cooling Fan
Dry Heating
Auto
Change operation mode

— 12 —
1

Tap the Change flap direction button on the TOP screen.
2 When the Change flap direction screen is displayed, tap the button
for desired direction.
To swing the flap, tap the Auto swing button.
To fix the flap position, tap one of to buttons.
3 
After selecting the flap direction, the display returns to the TOP screen.
 Since the flap is controlled automatically in the following operation, it may differ
from the display on the R/C.
∙ When the room temperature is higher than the set temp (In case of the heating
operation)
∙ When the “In operation for heating standby” or “In operation for defrosting” is
displayed (In case of the heating operation)
(Cool air is blown horizontally not to blow directly to human body.)
When the Ind. flap control button is tapped, the flap motion range (upper or
lower limit position) at each air outlet can be set. (󰾼page 23)
1

Tap the Change fan speed button on the TOP screen.
2 When the Change fan speed screen is displayed, tap the button of
desired fan speed.
3
After setting the fan speed, the display returns to the TOP screen.
 Fan speeds which can be set vary depending on the models of IU.

When the Auto is selected, the fan speed is changed automatically
depending on the capacity.
Change fan speed
Request
· Do not move the flap forcibly by hands. It could damage the flap.
· Do not blow air downward for a long period of time during the cooling operation.
Condensation may be generated and water may drip from the side panel. (In case of FDE)
Change flap direction

— 13 —
1 
Push the switch to start the high power operation.
 Operation will start when the switch is pushed, even if switch is off.
2
Message “In operation for high power” is displayed on the R/C
screen, and “—, —°C” is displayed on the Set temp button during
the high power operation.
3One more push on the switch terminates the high power
operation. Then it returns to normal operation.
Pushing the switch stops the operation.
 The high power operation is terminated also when the operation mode, set temp
or fan speed is changed.
1
Push the switch to start the energy-saving operation.
 The operation will start when the switch is pushed, even if
switch is off.
2
Message “In operation for energy-saving” is displayed on the screen
during the energy-saving operation. Set temp is fixed at 28.0°C” in
the cooling operation or “22.0°C” in the heating operation.
Set temp shows “- -°C” in the automatic operation mode.
3 One more push on the switch, terminates the energy-saving
operation, and it changes to the normal operation.
Pushing the switch stops the operation.

Set temp cannot be changed during the energy-saving operation. If it is
attempted, a message “Invalid request” is displayed on the screen.

Energy-saving operation is operable only when the cooling, heating or auto is
selected for the operation mode. If the
switch is pushed in any operation
mode other than the cooling, heating or auto mode, the message “Invalid
request” is displayed on the R/C screen.

Energy-saving operation is terminated also when the operation mode is changed.
High power operation
The high power operation adjusts the room temperature quickly to a pleasant level by increasing the operation
capacity. The high power operation continues for 15 minutes at the maximum and returns to the normal operation
automatically. When the operation mode is changed, the high power operation returns to the normal operation, too.
Energy-saving operation
Use this operation to save energy.
Set temp is fixed at 28°C in the cooling operation or 22°C in the heating operation. Since the capacity is
controlled automatically based on the outdoor temperature, energy can be saved without losing comfort.

— 14 —
■Operations on menu screens
1
Tap the Menu button on the TOP screen.
2
Main menu screen is displayed.
When a desired menu item is tapped, setting screen for each item
is displayed.
3
When the Next button is tapped, next main menu screen is
displayed.
When there are two or more pages, the
Next
button is displayed at the
leading page and the
Previous
button is displayed at the last page. The
Next
and
Previous
buttons are displayed on pages in between.
When one IU is controlled with 2 R/Cs, the following settings cannot
be made on the sub R/C. It is necessary to use the main R/C.
In case of the sub R/C, the icon Sis displayed on the R/C screen.
■Restrictions on the sub R/C
Main Sub
Basic operation  
High power operation  
Energy-saving operation  
Energy-saving setting 
Individual flap control 
External ventilation  
Filter sign reset  
Initial settings  
Timer   *1
Weekly timer 
Home leave mode 
Administrator settings *2
Installation settings 
R/C settings *3
IU settings 
Service & Maintenance *4
Select the language  
Error display & Error display  
*1 Warming up function cannot be set.
*2
R/C display setting, Set temp display and Change administrator password can be set.
*3 Main/Sub of R/Cs can be set.
*4 IU address, Error display, Error history, Reset periodical check, CPU reset and Touch panel
Calibration can be made.

— 15 —
5
When the Set button is displayed on the setting screen for
each item, tapping this button to confirm the setting.
4
When the Back button is tapped, the display returns to the TOP
screen.
6
When an item is referenced to the administrator password in this
manual, the Input password screen is displayed after selecting the
menu.
Enter the administrator password (4-digit number) and tap the
Set button.

When the password is unknown or wrong, the setting cannot be
changed.
· For the administrator password at the factory setting, refer to the Installation
Manual (consult your dealer).
When your administrator password is forgotten, initialize the password by referring
to the Installation Manual (consult your dealer).
Note

— 16 —
· When returning to the screen mentioned below from each setting screen, operate the following buttons or switches.
Return to Main screen … Menu button
Return to the last previous screen … Back button
Return to TOP screen … switch
· When the Back button is tapped without tapping the Set button on the way of setting, contents of the
setting are invalidated, and the display returns to the last previous screen. If the switch is pushed on the way
of setting, contents of the setting are invalidated, the setting mode is terminated and the display returns to the
TOP screen.
· If no button is operated for approx. 5 minutes on the way of setting each item, the display returns to the TOP
screen automatically. Contents of the setting on the way become invalid.
· Message ”Invalid request” may be displayed when a button is pushed. This is not a fault but it is because the
button is set to the Prohibition. (󰾼page 43)
· It is necessary to stop the air conditioner by pushing the switch before starting the following settings. If the
Set button is tapped on the menu screen while the air conditioner is operating, the message “Invalid
request” is displayed.
Energy-saving setting
Administrator setting
■Cautions for each setting screen

— 17 —
2
Tap the “Energy-saving setting” on the main menu screen.
3
When the Input password screen is displayed, enter the administrator
password.
After entering the administrator password (4-digit number), tap the
Set button.
When the password is unknown or wrong, the setting cannot be
changed.
4
When the Energy-saving setting screen is displayed, select a
desired item.
Sleep timer
Peak-cut timer
Automatic temp set back
Energy-saving setting
1Tap the Menu button on the TOP screen.
· For the administrator password at the factory setting, refer to the Installation
Manual (consult your dealer).
When your administrator password is forgotten, initialize the password by referring
to the Installation Manual (consult your dealer).
Note
· Always stop the air conditioner with the switch before starting the energy-
saving operation.
If the “Energy-saving setting” is tapped while the air conditioner is operating, the
message “Invalid request” is displayed.
Note

— 18 —
■Sleep timer
1
If the “Sleep timer” is tapped on the Energy-saving setting menu
screen, contents of current setting are displayed.
2

Select a desired time with 󰴤 buttons.
Setting range: 30 to 240 minutes, at 10-min intervals
3
Tap the 󰴥 State button to switch between “State Enable”
and “State Disable”.
If the “State Enable” is selected, operation stops at the set time
every time.
Unless the Sleep timer is used, set at the “State Disable”.
4
After the setting, tap the 󰴦 Set button. The display returns
to the Energy-saving setting menu screen.



1
When the screen to select the setting range, select a day of the
week to be set.
󰴤Weekdays : Monday – Friday
󰴥Sat. Sun : Saturday, Sunday (󰾼4)
󰴦All days : Monday - Sunday
󰴧Each day :
Moves to the day of the week setting screen. (󰾼2)
2
If a desired day of the week 󰴤is tapped on the display, contents
of current setting for the day are displayed. (󰾼5)
■Peak-cut timer
· When the peak-cut timer is used, be sure to make the Clock setting in advance (󰾼page 27).
· The peak-cut timer control may not be performed depending on combination of IU and OU.
Advice
3
For the holiday setting, tap the block 󰴥under a day to switch
between “ ” (the holiday setting) and “(Blank)” (reset).
Timer does not operate on the day set as holiday. Two or more
holidays can be set.

To enable the timer on the day set as holiday, it is necessary to reset the holiday setting.
4
When tapping 󰴦 “All Disable” button, the timer does not operate
on all days of the week.
When the timer is used, be sure not to set “All Disable”.






— 19 —
5
Screen to check contents of current setting is displayed.
When the contents are changed or new setting is added, 󰴤select
a setting line No. and 󰴥tap theChange button.



7
Set the Start time.
Set the hour and minute with the   buttons.
Setting time can be set at 5-min intervals.
Tap the Set button after the setting. (󰾼8)
6
Detail setting screen for the timer setting contents is displayed.
󰴤
Tap theState button to switch between “State Enable” and
“State Disable”.
󰴥
If the Change button is tapped, the start time and the end
time can be set. (󰾼7)
󰴦
If the Peak-cut button is tapped, the peak-cut % can be set.
(󰾼9)
8
Set the End time.
Set the hour and minute with the   buttons. The
End time can be set from 5 minutes after the Start time up to
24:00 at 5-min intervals
Tap the Set button after the setting. (󰾼10 )

