Mitsubishi Heavy Industries FDF Series User manual

USER’S MANUAL
PACKAGED AIR CONDITIONER
PGA012A413
Ce climatiseur est conforme aux directives suivantes.
Machines 2006/42/CE
Basse tension 2014/35/UE
CEM 2014/30/UE
Équipements sous pression 2014/68/UE
RoHS 2011/65/UE
Écoconception 2009/125/CE
La marque CE s’applique aux régions alimentées en courant
de 50 Hz.
Diese Klimaanlage erfüllt die folgende Richtlinie.
Maschinen 2006/42/EC
Niederspannung 2014/35/EU
EMV 2014/30/EU
Druckgeräte 2014/68/EU
RoHS 2011/65/EU
Ökodesign 2009/125/EC
Die CE-Marke gilt für Bereiche mit einer Netzstromversorgung
von 50 Hz.
Questo condizionatore d’aria è conforme alla seguente direttiva.
Macchinario 2006/42/CE
Bassa tensione 2014/35/UE
EMC 2014/30/UE
Apparecchiature a pressione 2014/68/UE
RoHS 2011/65/UE
Ecodesign 2009/125/CE
Il marchio CE è applicabile alla fascia di alimentazione 50 Hz.
Deze airconditioner voldoet aan de volgende richtlijn.
Machine 2006/42/EC
Laagspanning 2014/35/EU
EMC 2014/30/EU
Drukapparatuur 2014/68/EU
RoHS 2011/65/EU
Ecodesign 2009/125/EC
CE-markering is van toepassing op het gebied met een net-
stroom van 50 Hz.
Este aire acondicionado cumple con la siguiente directiva.
Máquinas 2006/42/CE
Baja tensión 2014/35/UE
EMC 2014/30/UE
Equipos a presión 2014/68/UE
RoHS 2011/65/UE
Ecodiseño 2009/125/CE
La indicación CE sólo corresponde al área de suministro
eléctrico de 50 Hz.
Este ar condicionado está em conformidade com as seguintes directivas .
Máquinas 2006/42/CE
Baixa tensão 2014/35/UE
EMC 2014/30/UE
Equipamentos sob pressão 2014/68/UE
RoHS 2011/65/UE
Concessão ecológica 2009/125/CE
A marca CE aplica-se à zona de fornecimento de energia a
50 Hz.
Floor Standing (FDF)
USER’S MANUAL
ENGLISH
MANUEL DE L’UTILISATEUR
ANWENDERHANDBUCH
DEUTSCH
ISTRUZIONI PER L’USO
ITALIANO
MANUAL DEL PROPIETARIO
ESPAÑOL
GEBRUIKERSHANDLEIDING
NEDERLANDS
РУКОВОДСТВО ПО ЭКСПЛУАТАЦИИ U
MANUAL DO UTILIZADOR
PORTUGUÊS
РУССКИЙ
TÜRKÇE
FRANÇAIS
KULLANIM KILAVUZU
Please refer to the manual provided with WIRED REMOTE
CONTROL (RC-EX series) and WIRELESS REMOTE
CONTROL (RCN-E2 series)
Veuillez vous référer au manuel fourni avec la
TÉLÉCOMMANDE FILAIRE (série RC-EX) et la
TÉLÉCOMMANDE SANS-FIL (série RCN-E2)
Siehe bitte die mit KABEL-FERNBEDIENUNG (RC-EX-Serie)
und DRAHTLOSE FERNBEDIENUNG (RCN-E2-Serie)
mitgelieferte Bedienungsanleitung
Consultare il manuale in dotazione con TELECOMANDO
CABLATO (serie RC-EX) e TELECOMANDO SENZA FILI
(serie RCN-E2)
Consulte el manual suministrado con el MANDO A
DISTANCIA ALÁMBRICO (serie RC-EX) y el MANDO A
DISTANCIA INALÁMBRICO (serie RCN-E2)
Raadpleeg de handleiding die is meegeleverd met de
BEDRADE AFSTANDSBEDIENING (RC-EX-reeks) en
DRAADLOZE AFSTANDSBEDIENING (RCN-E2-reeks)
Consulte o manual fornecido com o CONTROLO REMOTO
COM FIOS (série RC-EX) e o CONTROLO REMOTO SEM
FIOS (série RCN-E2)
Пожалуйста, обратитесь круководству, которое поставляется сПРОВОДНЫМ
ПУЛЬТОМ ДИСТАНЦИОННОГО УПРАВЛЕНИЯ (серия RC-EX) иБЕСПРОВОДНЫМ
ПУЛЬТОМ ДИСТАНЦИОННОГО УПРАВЛЕНИЯ (серия RCN-E2)
Lütfen kablolu uzaktan kumandalıolan (RC-EX serisi) ve
kablosuz uzaktan kumandalıolan (RCN-E2 serisi) modelin
kılavuzuna bakınız.
202206
This product complies with following directives/regulations
EU GB
MD 2006/42/EC SMR S.I. 2008/1597
LVD 2014/35/EU EER S.I. 2016/1101
EMC 2014/30/EU EMC S.I. 2016/1091
PED 2014/68/EU PER S.I. 2016/1105
RoHS 2011/65/EU RoHS S.I. 2012/3032
Ecodesign 2009/125/EC Ecodesign S.I. 2020/1528
CE and UKCA marking is applicable to the area of 50 Hz
power supply
PGA012A413_cover.indd 1PGA012A413_cover.indd 1 2022/6/22 16:43:462022/6/22 16:43:46

PGA012A413_cover.indd 2PGA012A413_cover.indd 2 2022/6/22 16:43:462022/6/22 16:43:46

1
Thank you very much for your purchase of this packaged air conditioning system produced
by Mitsubishi Heavy Industries. Please read through this manual before using the
product and use the product appropriately according to the instructions in the manual.
After you have read the manual, store it with the warranty certificate in a safe place.
This Product contains fluorinated greenhouse gases.
Do not vent R32 into the atmosphere: R32 is a fluorinated greenhouse gas with
a Global Warming Potential (GWP) = 675.
Do not vent R410A into the atmosphere: R410A is a fluorinated greenhouse gas
with a Global Warming Potential (GWP) = 2088.
Refer to a label on outdoor unit for the weight of fluorinated greenhouse gas
and CO2equivalent.
The emission sound pressure level from each Indoor and Outdoor unit is under
70 dB(A).
1. SAFETY PRECAUTIONS
Please read these
“SAFETY PRECAUTIONS”
before starting to use
this product and use the
product appropriately
according to the
instructions.
The precautions provided
here are classified into
“WARNING” and
“CAUTION”. The
“WARNING” sections
describe potentially
hazardous situations
that may lead to serious
outcomes such as death
and serious injuries if the
product is mishandled.
Note, however, that
depending on the
situation, the items listed
in the “ CAUTION”
sections do also have
the potential of causing
serious outcomes. Both
warnings and cautions
provide you important
information related to
safety ; please make sure
to observe them.
The symbols used
throughout the main text
of this manual have the
following meaning.
marks mean danger,
alarm, and caution. The
specified prohibited
item is described in the
triangle. The left mark
means “Shock hazard
alarm”.
marks mean
prohibited items. The
specified prohibited
item is described in the
circle or in the vicinage.

marks mean
compulsory action
or instruction. The
specified prohibited
item is described in
the circle. The left
mark means “Earth is
needed”.
The user’s manual
should be read
carefully.
There is information
included in the
user’s manual and/or
installation manual.
A service personnel
should be handing
this equipment with
reference to the
installation manual.
After you have read the
manual, always store it
where other users can
refer to at any time. If a
new owner takes over
the system, make sure to
pass this manual.
1. SAFETY PRECAUTIONS..............................................................................................................................................1
2. NAMES AND FUNCTIONS OF SECTIONS ON THE R/C............................................................................................5
3. BASIC OPERATION......................................................................................................................................................7
4. MENU OPERATIONS..................................................................................................................................................10
5. SETTINGS AND OPERATIONS.................................................................................................................................. 11
6. MAINTENANCE OF UNIT AND LCD..........................................................................................................................23
7. USEFUL INFORMATION ............................................................................................................................................24
8. NOTICE OF INSPECTION DATE................................................................................................................................24
9. MESSAGE DISPLAY...................................................................................................................................................24
10. AFTER-SALE SERVICE............................................................................................................................................27
11. HOW TO MAINTAIN ..................................................................................................................................................27
12. TROUBLE SHOOTING .............................................................................................................................................28
13. PREPARATION OF HEATING ..................................................................................................................................28
14. AUTO RESTART <WIRED REMOTE CONTROL>...................................................................................................28
15. INSTALLATION, RELOCATION, AND INSPECTION MAINTENANCE ...................................................................29
16. OPERATION RANGE................................................................................................................................................29
17. DRED.........................................................................................................................................................................29
18. MAINTENANCE AND INSPECTION GUIDELINE OF MAIN PARTS OF PACKAGED AIR CONDITIONER ..........30
ENGLISH
English is Original
Please turn on the power switch 6 hours before operation to protect the air conditioner (the crank case heater is conducted and
the compressor is heated).
Also, be sure not to turn off the power switch (the crank case heater is conducted and the compressor is heated during stop of
the compressor. It protect the fault of the compressor caused by liquid refrigerant stagnation).
Note
PGA012A413_EN.indd 1PGA012A413_EN.indd 1 2022/6/23 13:25:282022/6/23 13:25:28

22
Following precaution is only for R32.
This equipment uses
flammable refrigerants.
If the refrigerant is
leaked, together with
an external ignition
source, there is a
possibility of ignition.
WARNING
Strict compliance of the
domestic laws must be
observed when disposing
the appliance.
Do not use means to
accelerate the defrosting
process or to clean, other
than those recommended by
the manufacturer.
The appliance shall be
stored in a room without
continuously operating
ignition sources (for
example: open flames, an
operating gas appliance or
an operating electric heater).
Do not pierce or burn.
Be aware that refrigerants
may not contain an odour.
The appliance shall be
stored in a well-ventilated
area where the room size
corresponds to the room
area as specified for
operation.
The staff in servicing
operations must hold
the national qualification or
other relevant qualifications.
Make sure to mount a
leakage breaker.
Otherwise electric shock may
occur. Please consult your
dealer or a specialist for the
mounting.
Do not mount where
flammable gas leakage
can happen.
If leaked gas stagnates in the
unit, the gas may cause fire.
Make sure to layout the
drain pipe so that the
water is completely drained.
Otherwise, water may leak and
wet household goods.
OPERATION PRECAUTIONS
WARNING
This appliance can be
used by children aged
from 8 years and above
and persons with reduced
physical, sensory or mental
capabilities or lack of
experience and knowledge
if they have been given
supervision or instruction
concerning use of the
appliance in a safe way and
understand the hazards
involved.
Children shall not play
with the appliance.
Cleaning and user
maintenance shall not be
made by children without
supervision.
This unit should be
installed in rooms which
exceed the floor space
specified in installation
sheets of indoor/outdoor
unit.
Refer to the installation
sheet.
INSTALLATION PRECAUTIONS
WARNING
Make sure to have the
installation done by your
dealer or a specialist.
If you install by yourself and the
unit is not properly installed,
water leakage, electric shock,
fire and injuries caused by the
drop of the unit may occur.
The preventive measures
that the density of leaked
refrigerant does not
exceed the limit is necessary
in case of installing the unit
in a small room.
The leakage of refrigerant
may cause oxygen deficiency
accident. Consult your dealer
for the measures.
CAUTION
Make sure to perform
grounding work.
Do not connect grounding wire
to any gas pipe, water pipe,
conductor rods or telephones.
Incomplete grounding may
cause electric shock through
leakage of electricity.
Do not expose yourself
directly to cooled air flow
for a long time or cool too
much.
It may be cause of
deconditioning or health
disorder.
Do not insert fingers or
sticks into the air inlet or
outlet grilles.
It may cause injuries because
of the fan rotating at high
speed.
If the unit has been
submerged under water
due to a natural disaster
such as flood or typhoon,
consult your dealer before
using it again.
If you use it as it stands, it may
lead to failure, electric shock or
fire.
If any abnormal symptom
(scorched flavor etc.) is
found, cut off the power and
stop the operation.
Then consult your dealer.
If you use it as it stands, it may
lead to failure, electric shock or
fire.
One of the causes of poor
cooling or poor heating
may be refrigerant leakage.
Please consult your dealer.
If the repair requires additional
refrigerant, determine the
service with the service
staff. The refrigerant of air
conditioner is not toxic.
PGA012A413_EN.indd 2PGA012A413_EN.indd 2 2022/6/23 13:25:292022/6/23 13:25:29

3
Normally the refrigerant
does not leak. But if it leaks
and contacts fire such as
fan heater, space heater or
cooking heater, it may produce
toxic chemicals.
Do not insert fingers or
sticks even if air blower
does not operate.
It may suddenly operate and
cause injuries.
When a child or sick
person who may need help
uses it, nearby people should
take care of them sufficiently.
When the air conditioner is
stopped by some abnormal
condition, the motion sensor
control, or other, it could affect
health condition or cause
accident.
CAUTION
Do not use for particular
purpose such as the
storage of food, animals and
plants, precision apparatus
and arts etc.
Storage goods may degrade.
Do not operate the button
with wet hand.
It may cause electric shock.
When a burning appliance
is used together with the
unit, ventilate frequently.
If ventilation is not sufficient, it
may cause oxygen deficiency
accident.
Before maintenance,
make sure to stop
operation and cut off the
power.
The fan inside rotates at high
speeds.
When the unit isn’t used
for a long-term, cut off the
power.
The accumulation of dirt may
lead to heat generation or fire.
But, before resuming the
operation, turn on the unit for
six hours beforehand to save
harmless.
Do not place any other
electric appliances or
household goods below or
around the air conditioner.
Dripping from the unit may lead
to failure or contamination.
Do not touch the
aluminum fin.
Otherwise it may lead to
injuries.
Do not clean the inside
of the indoor unit by
yourself. Make sure to
consult your dealer or user
inquiry counter specified by
our company.
If you select incorrect detergent
or improper method, resin
parts may be damaged and
lead to water leakage. If the
detergent is dropped on the
electric component or motor, it
may lead to failure, smoking or
ignition.
Do not place a burning
appliance where the air
flow from the unit is directly
blown.
It may cause the imperfect
combustion of the equipment.
Make sure that the unit
installation foundation is
not damaged due to long-
term use.
If it is left to stand, the unit may
fall down causing injury.
Do not wash the unit with
water, nor place a vase
with water on the unit.
It may cause electric shock or
ignition.
Do not install the unit
where the air flow is
directly blown to animals
and plants.
They may suffer from adverse
effect.
Before cleaning, make
sure to stop operation
and cut off the power.
The fan inside rotates at high
speeds.
Make sure to use proper
size of fuse.
Using steel wire or copper wire
may lead to failure or fire.
Do not store a flammable
spray etc. near the unit,
nor blow directly to the unit.
It may lead to fire.
Do not place objects on
the outdoor unit, nor
mount on it.
It may lead to injuries resulting
from dropping or falling.
During the operation or
maintenance, do not use
an unstable footrest.
It may lead to injuries resulting
from falling.
Be careful so that the
dust does not get into
your eyes when removing
the air filter.
Do not operate the air
conditioner while the air
filter is removed.
Piled up dust may lead to
malfunction.
During thunderstorm,
stop the operation and
turn off the switch.
A lightning strike may lead to
failure.
After several seasons of
operating, inspections
and maintenances are
required except routine care
and cleaning.
Accumulated dirt or dust inside
the indoor unit may cause odor,
water leakage through the
clogging of water discharging
pipe for dehumidification.
Specialized information
and skills are required for
inspections and maintenances.
Therefore contact your dealer.
PGA012A413_EN.indd 3PGA012A413_EN.indd 3 2022/6/23 13:25:292022/6/23 13:25:29

44
PRECAUTIONS FOR WASTE DISPOSAL
UNIT SPECIFICATIONS
Your Air Conditioning product may be marked with this symbol. It means that waste electrical and electronic
equipment (WEEE as in directive 2012/19/EU) should not be mixed with general household waste. Air
conditioners 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.
Do not place any object
around the outdoor unit,
nor allow fallen leaves to pile
up.
Fallen leaves may induce
insects and worms in them,
and they may lead to failure,
ignition or smoking by touching
electric components.
Do not use with inlet/
outlet grilles or other
panel removed.
Otherwise, it may lead to
injuries.
Do not operate or stop the
unit by using the power
supply switch.
It may lead to fire or water
leakage.
If auto restart is set effectively,
the fan may rotate suddenly
causing injuries.
Do not touch blowout port
when the swing louver
moves.
Otherwise, it may lead to
injuries.
Do not strain the remote
control cord.
A part of core wire may be cut
off causing electric leakage.
Do not use water heater
etc. near the indoor unit
or remote control.
If a Vapor-generating appliance
is used near them, it may lead
to water drop causing electric
leakage or short circuit.
PRECAUTIONS FOR RELOCATION
OR REPAIRING
CAUTION
Never perform any
modification. Contact
your dealer for repairing.
Improper repairing may lead to
water leakage, electric shock
or fire. Normally the refrigerant
does not leak. But if it leaks
and contacts fire such as
fan heater, space heater
or cooking heater, it may
produce toxic chemicals. When
repairing refrigerant leakage,
determine the service with the
service staff that the repair has
been finished without fault.
If it is required to
relocation and reinstall
the unit, consult your dealer
or a specialist.
Improper installation of air
conditioning unit may cause
water leakage, electric shock
and/or fire.
Do not use the unit where
powder or fiber is floating.
Fine powder or fiber passing through
the air filter may stagnate inside the unit
and lead to electric leak or short circuit.
Do not place objects
under the unit which must
avoid being exposed to water.
Over 80 percent humidity or the
clogging of drain pipe may damage
them through dew dropping.
When the refrigerant leaked
accidentally, turn off the stove,
or other, and ventilate air sufficiently.
Do not use a spray
containing flammable gas
near the indoor unit.
Otherwise, the unit may stop
abnormally due to a false detection.
Do not turn off the power
breaker except during
maintenance and inspection.
As refrigerant leakage cannot
be detected, a fire may result.
When the power breaker
is on, pay attention to the
rotation of the fan.
If the refrigerant sensor detects a
refrigerant leak, the fan will rotate
automatically and may cause an injury.
If the "Refrigerant sensor
replace time has passed."
message appears on the remote
control, replace the sensor.
If you continue to use the refrigerant
sensor even after its replacement
period has passed, a fire may result
if the refrigerant leaks.
Before repairing or
checking indoor unit, be
sure to turn off “Indoor unit
power supply breaker”.
It can result in electric shock or
injury due to rotation of indoor
unit fan if you perform check
or repair with the “Indoor unit
power supply breaker” turned
on.
Place the panels removed
for repairing or checking
on the stable spot.
Otherwise, dropping or falling
may lead to injury.
Item Description
Product dimensions 120 (W) x 120 (H) x 19 (D) mm (not including protruded section)
Weight 0.20 kg
Power supply DC 18 V
Power consumption 0.6 W
Usage environment Temperature: 0 to 40 °C
Material Casing: ABS
PGA012A413_EN.indd 4PGA012A413_EN.indd 4 2022/6/23 13:25:292022/6/23 13:25:29

5
2. NAMES AND FUNCTIONS OF SECTIONS ON THE R/C
NAMES AND FUNCTIONS OF SECTIONS ON THE R/C (OPERATING SECTION) NAMES AND FUNCTIONS OF SECTIONS ON THE R/C (DISPLAY)
1Run/Stop switch
One push on the button starts operation and
another push stops operation. (☞page 7)
2F1 switch 3F2 switch
This switch starts operation that is set in F1/F2
function setting.
(☞page 8)
4Operation lamp
This lamp lights in green (yellow-green) during
operation. It changes to red (orange) if any error
occurs.
Operation lamp luminance can be changed.
(☞page 17)
5LCD (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 16)
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 1, 2and 3are excluded.)
6USB 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 (remote control utility software).
Touch panel system, which is operated by tapping the LCD screen with a finger, is employed for any operations
other than the 1Run/Stop, 2F1 3F2 switches.
5LCD (With backlight)
3F2 switch
4Operation lamp
6USB port (mini-B)
1Run/Stop switch
2F1 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.
1Clock, Room name display
Displays the current time (☞page 15) and the room
name.
2Icon 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 10)
When the
central control (Optional) is
running.
When the periodical
inspection is necessary.
(☞page 24)
During the ventilation
operation.
(☞page 15)
When “filter sign” is up.
(
☞page
23)
When the Permission/
Prohibition setting is made.
When the peak-cut
timer is set.
(☞page 12)
When the weekly
timer is set.
(☞page 19)
3Menu button
When setting or changing other than the following
4-8, tap the menu button. Then menu items are
displayed, select one and set.
4
Change operation mode button (☞page 7)
Displays the operation mode which is selected currently.
Tap this button to change the operation mode.
5Change set temp button (☞page 7)
Displays the temperature which is set currently. Tap this
button to change the set temperature.
6Change flap direction button (☞page 8)
Displays the flap direction which is selected currently.
When the 3D auto flow operation is enabled, 3D auto
display will appear. Tap this button to change the flap
direction.
7Change the fan speed button (☞page 8)
Displays the fan speed which is selected currently. Tap this
button to change the fan speed.
8Timer button (☞page 17)
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.
9Select the language button
Select a language to be displayed on the R/C.
:Message display
Status of air conditioner operation and messages of the
R/C operations etc. are displayed.
AF1 , F2 switch function Display
Displays the function that is set for each F1 , F2
switch.
The function for these switches can be changed in F1/
F2 function setting.
*All icons are shown for the sake of explanation.
A
F1 , F2 switch
function display
1Clock, Room name display
4Change operation
mode button
TOP screen
8Timer button
2Icon display
3Menu button
5Change set temp
button
6Change flap
direction button
7Change the fan
speed button
9Select the
language button
:
Message display
PGA012A413_EN.indd 5PGA012A413_EN.indd 5 2022/6/23 13:25:292022/6/23 13:25:29

66
MENU ITEM
Main menu
Installation settings
Installation date ……………………………………………………
Company information ………………………………………………
Test run………………………………………………………………
IU back-up function …………………………………………………
Motion sensor setting ………………………………………………
R/C function settings
Main/Sub of R/C ……………………………………………………
Return air temp ……………………………………………………
R/C sensor …………………………………………………………
R/C sensor adjustment ……………………………………………
Operation mode ……………………………………………………
ºC / ºF ………………………………………………………………
Fan speed …………………………………………………………
External input ………………………………………………………
Ventilation setting …………………………………………………
Auto-restart …………………………………………………………
Auto temp setting …………………………………………………
Auto fan speed ……………………………………………………
IU settings
Fan speed setting …………………………………………………
Filter sign ……………………………………………………………
External input 1 ……………………………………………………
External input 1 signal………………………………………………
External input 2 ……………………………………………………
External input 2 signal………………………………………………
Heating thermo-OFF temp adjustment …………………………………
Return temperature adjustment……………………………………
Fan control in cooling thermo-OFF …………………………………
Fan control in heating thermo-OFF …………………………………
Anti-frost temp ………………………………………………………
Anti-frost control ……………………………………………………
Keep fan operating after cooling is stopped …………………………………
Keep fan operating after heating is stopped …………………………………
Intermittent fan operation in heating …………………………………
Fan circulator operation ……………………………………………
Auto operation mode ………………………………………………
Thermo. rule setting ………………………………………………
Auto fan speed control ……………………………………………
IU overload alarm …………………………………………………
External output setting ……………………………………………
Service & Maintenance
IU address …………………………………………………………
Next service date……………………………………………………
Operation data………………………………………………………
Error display…………………………………………………………
Saving IU settings …………………………………………………
Special settings ……………………………………………………
Indoor unit capacity display ………………………………………
Contact company ………………………………………………………………… 24
Service setting
Contact company
Please refer to the
installation manual.
Please refer to the
installation manual.
Please refer to the
installation manual.
Please refer to the
installation manual.
Main menu
Run ………………………………………………………………………………… 7
Stop………………………………………………………………………………… 7
Change operation mode ………………………………………………………… 7
Change set temp ………………………………………………………………… 7
Change flap direction …………………………………………………………… 8
Change the fan speed …………………………………………………………… 8
F1, F2 switch operation…………………………………………………………… 8
High power operation …………………………………………………………… 9
Energy-saving operation ………………………………………………………… 9
Timer ……………………………………………………………………………… 17
Set ON timer by hour …………………………………………… 18
Set OFF timer by hour ………………………………………… 18
Set ON timer by clock…………………………………………… 19
Set OFF timer by clock ………………………………………… 19
Confirm…………………………………………………………… 19
Favorite setting …………………………………………………………………… 21
Weekly timer ……………………………………………………………………… 19
Home leave mode……………………………………………………………………
External ventilation ……………………………………………………………… 15
Select the language ……………………………………………………………… 22
Silent mode control ……………………………………………………………… 22
Sleep timer………………………………………………………………………… 11
Peak-cut timer …………………………………………………………………… 12
Automatic temp set back ………………………………………………………… 13
Motion sensor control …………………………………………………………… 14
Filter sign reset …………………………………………………………………… 23
Initial settings ……………………………………………………………………… 15
Clock setting …………………………………………………… 15
Date & time display ……………………………………………… 15
Summer time …………………………………………………… 16
Contrast ………………………………………………………… 16
Backlight ………………………………………………………… 16
Controller sound ………………………………………………… 16
Operation lamp luminance ……………………………………… 17
Administrator settings ………………………………………………………………
Permission/Prohibition setting ……………………………………
Outdoor unit silent mode timer ……………………………………
Setting temp range …………………………………………………
Temp increment setting ……………………………………………
Set temp display ……………………………………………………
R/C display setting …………………………………………………
Change administrator password …………………………………
F1/F2 function setting ………………………………………………
Basic operation
Useful functions
Energy-saving setting
Filter
User setting
Please refer to the RC-EX3A user's manual.
Please refer to the
RC-EX3A user's manual.
PGA012A413_EN.indd 6PGA012A413_EN.indd 6 2022/6/23 13:25:292022/6/23 13:25:29

7
3. BASIC OPERATION
RUN
STOP
CHANGE OPERATION MODE
CHANGE SET TEMP
Push the Run/Stop switch.
Operation lamp (green) lights and operation starts.
When the operation stops, all operation buttons on the screen turn
off. When the set lighting time of backlight (☞page 16) is counted
up, the backlight turns off.
When the screen is tapped, the backlight lights, and all operation
buttons are displayed.
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”.
• The unit starts to operate initially with the following settings after the power on. These settings can be changed as desired.
Central control …… OFF
Operation mode …… With auto mode: Auto cooling
…… Without auto mode: Cooling
Set temp …… 23.0°C
Fan speed …… 3-speed
• In the following cases, a message “Operation mode is invalid.” is displayed and it changes to the fan operation, because operation
modes are not matched.
1When Heating (including auto heating) is selected for Operation mode while using an OU for cooling only.
2When Heating is selected for Operation mode while controlling multiple units including units allowed for both cooling and heating
and units for cooling only.
3When different operation modes are selected between IUs which are connected to a OU that do not allow mixed operation of
cooling and heating.
Advice
2
When the Change operation mode screen is displayed, tap the
button of desired mode.
The operation mode changes, and the display returns to the
TOP screen.
Icons displayed have the following meanings.

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
Fan
Heating
Back
Auto
Dry
OutdoorRoomR/C
Cooling
Please select operation mode.
Press the Run/Stop switch while the unit is in operation.
The operation lamp turns off and the operation stops.
1Tap the Change operation mode button on the TOP
screen.
1Tap the Change set temp button on the TOP screen.
PGA012A413_EN.indd 7PGA012A413_EN.indd 7 2022/6/23 13:25:292022/6/23 13:25:29

88
CHANGE FLAP DIRECTION
CHANGE THE FAN SPEED
F1/F2 SWITCH OPERATION
1Tap the Change flap direction button on the TOP screen.
2
When the Change set temp screen is displayed, select the
temperature as desired with using buttons.
3After selecting the set temp, tap the Set button. The
display returns to the TOP screen.

For allowable temperature setting ranges, refer to the range
setting of set temp.
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 adjusted higher or lower with using buttons.
Note that Auto is not displayed and cannot be set when SC-SL2, SC-SL3,
or SC-SL4 is connected.

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.
Change set temp
Auto
Set
Back
OutdoorRoomR/C
Tap
▲▼
to set temp & tap [Set].
2The Change flap direction screen is displayed.
To swing the louver, tap the Swing button.
To fix the louver position, swing the louver, and tap the
Stop button at the desired position.
After the flap direction is selected, the display returns to the
TOP screen.
Swing Stop
Changing the function of the F1 or F2 switch can be performed with the F1/F2 function setting.
The following functions are set as factory settings.
You may change these settings as desired.
F1 switch …High power operation
F2 switch …Energy-saving operation
You can set any of the following functions to the F1 and F2 switches.
The F1 / F2 switches act as shortcuts; it can be much easier and faster than starting an operation from the
usual Menu on the TOP screen.
• High power operation …☞page 9
• Energy-saving operation …☞page 9
• Silent mode control …☞page 22
• Favorite setting operation …☞page 22
• Filter sign reset …☞page 23
1Tap the Change the fan speed button on the TOP screen.
2
When the Change the fan speed screen is displayed, tap the
button of desired fan speed.
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.
Note that Auto is not displayed and cannot be set when SC-SL2 or
SC-SL3 is connected.
Change the fan speed
Back
OutdoorRoomR/C
Select the fan speed.
Auto
•If you forcibly move the swing louver mechanism by hand, it may be damaged, so do not move it by hand.
Advice
PGA012A413_EN.indd 8PGA012A413_EN.indd 8 2022/6/23 13:25:302022/6/23 13:25:30