Daikin RXYMQ5BVM User manual

OPERATION MANUAL
System air conditioner
RXYMQ5BVM
RXYMQ6BVM
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Thank you for purchasing this Daikin air conditioner.
Carefully read this operation manual before using the air conditioner.
It will tell you how to use the unit properly and help you if any trouble occurs.
Use it along with the operation manual for the indoor unit. After reading the manual,
le it away for future reference.
CONTENTS READ BEFORE OPERATION
Safety precaution............................................................................................................. 1
Names of parts................................................................................................................ 4
Preparation Before Operation.......................................................................................... 6
Useful Information ........................................................................................................... 6
OPERATION
Cooling · Heating · Fan Operation ................................................................................... 7
Program Dry Operation ................................................................................................... 9
Adjusting the Airow Direction....................................................................................... 10
OFF TIMER Operation................................................................................................... 11
How to set Master Remote Controller ........................................................................... 12
TROUBLE SHOOTING
Trouble Shooting............................................................................................................ 14
Check the following before requesting service .............................................................. 16
Types of Air-Conditioner ................................................................................................ 17
After-Sales Service........................................................................................................ 17
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1
Safety precaution
To gain full advantage of the air conditioner’s functions and to avoid malfunction due to mishandling, we recommend that
you read this instruction manual carefully before use.
Read the precautions thoroughly to avoid misuse of the equipment.
This air conditioner is classied under “appliances not accessible to the general public”.
• TheprecautionsdescribedhereinareclassiedasWARNINGandCAUTION.Theybothcontainimportant
informationregardingsafety.Besuretoobserveallprecautionswithoutfail.
There are two kinds of safety precaution and tips listed in the following.
WARNING CAUTION
Failure to follow these instructions properly may result in
personal injury or loss of life.
Failure to observe these instructions properly may result in
property damage or personal injury, which may be serious
depending on the circumstances.
• Afterreading,keepthismanualinaconvenientplacesothatyoucanrefertoitwhenevernecessary.Ifthe
equipmentistransferredtoanewuser,besurealsotohandoverthemanual.
WARNING
• Beawarethatprolonged,directexposuretocoolor
warmairfromtheairconditioner,ortoairthatis
toocoolortoowarmcanbeharmfultoyour
physical condition and health.
• Whentheairconditionerismalfunctioning(giving
offaburningodour,etc.)turnoffpowertotheunit
and contact your local dealer.
Continued operation under such circumstances may
result in a failure, electric shocks or re hazards.
• Consultyourlocaldealeraboutinstallationwork.
Doing the work yourself may result in water leakage,
electric shocks or re hazards.
• Consultyourlocaldealerregardingmodication,
repairandmaintenanceoftheairconditioner.
Improper workmanship may result in water leakage,
electric shocks or re hazards.
• Donotplaceobjects,includingrods,yourngers,
etc., in the air inlet or outlet.
Injury may result due to contact with the air
conditioner’s high speed fan blades.
• Nevertouchtheairoutletorthehorizontalblades
whiletheswingapisinoperation.
Fingers may become caught or the unit may break
down.
• Bewareofreincaseofrefrigerantleakage.
If the air conditioner is not operating correctly, i.e. not
generating cool or warm air, refrigerant leakage could
be the cause.
Consult your dealer for assistance.
The refrigerant within the air conditioner is safe and
normally does not leak.
However, in the event of a leakage, contact with a
naked burner, heater or cooker may result in generation
of noxious gas.
Do not longer use the air conditioner until a qualied
service person conrms that the leakage has been
repaired.
• Consultyourlocaldealerregardingwhattodoin
case of refrigerant leakage.
When the air conditioner is to be installed in a small
room, it is necessary to take proper measures so that
the amount of any leaked refrigerant does not exceed
the concentration limit in the event of a leakage.
Otherwise, this may lead to an accident due to oxygen
depletion.
• Contactprofessionalpersonnelaboutattachment
of accessories and be sure to use only accessories
speciedbythemanufacturer.
If a defect results from your own workmanship, it may
result in water leaks, electric shock or re.
• Consult your local dealer regarding relocation and
reinstallation of the air conditioner.
Improper installation work may result in leakage,
electric shocks or re hazards.
READ BEFORE OPERATION
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2
READ BEFORE OPERATION
WARNING
• Besuretousefuseswiththecorrectampere
reading.
Do not use improper fuses, copper or other wires as a
substitute, as this may result in electric shock, re,
injury or damage to the unit.
• Be sure to earth the unit.
Do not earth the unit to a utility pipe, lightning conductor
or telephone earth lead. Imperfect earthing may result
in electric shocks or re.
A high surge current from lightning or other sources
may cause damage to the air conditioner.
• Be sure to install an earth leakage breaker.
Failure to install an earth leakage breaker may result in
electric shocks or re.
• Consultthedealeriftheairconditionersubmerges
owingtoanaturaldisaster,suchasaoodor
typhoon.
Do not operate the air conditioner in that case, or
otherwise a malfunction, electric shock, or re may
result.
• Do not start or stop operating the air conditioner
withthepowersupplybreakerturnedONorOFF.
Otherwise, re or water leakage may result.
Furthermore, the fan will rotate abruptly if power failure
compensation is enabled, which may result in injury.
• Donotusetheproductintheatmosphere
contaminatedwithoilvapor,suchascookingoilor
machineoilvapor.
Oil vapor may cause crack damage, electric shocks, or
re.
• Donotusetheproductinplaceswithexcessiveoily
smoke,suchascookingrooms,orinplaceswith
ammablegas,corrosivegas,ormetaldust.
Using the product in such places may cause re or
product failures.
• Donotplaceburnersorheatersinplacesexposed
totheairowfromtheunitasthismayimpair
combustionoftheburnerorheather.
• Donotuseammablematerials(e.g.,hairsprayor
insecticide) near the product.
Donotcleantheproductwithorganicsolvents
such as paint thinner.
The use of organic solvents may cause crack damage
to the product, electric shocks, or re.
• Besuretouseadedicatedpowersupplyfortheair
conditioner.
The use of any other power supply may cause heat
generation, re, or product failures.
• Consult your dealer regarding cleaning the inside of
the air conditioner.
Improper cleaning may cause breakage of plastic parts,
water leakage and other damage as well as electric
shocks.
CAUTION
• Do not use the air conditioner for purposes other
thanthoseforwhichitisintended.
Do not use the air conditioner for cooling precision
instruments, food, plants, animals or works of art as this
may adversely affect the performance, quality and/or
longevity of the object concerned.
• Donotremovetheindoor/outdoorunit’sfanguard.
The guard protects against the unit’s high speed fan,
which may cause injury.
• Do not place objects that are susceptible to
moisturedirectlybeneaththeindoororoutdoor
units.
Under certain conditions, condensation on the main unit
or refrigerant pipes, air lter dirt or drain blockage may
cause dripping, resulting in fouling or failure of the
object concerned.
• Toavoidoxygendepletion,ensurethattheroomis
adequatelyventilatedifequipmentsuchasaburner
isusedtogetherwiththeairconditioner.
• After prolonged use, check the unit stand and its
mountsfordamage.
If left in a damaged condition, the unit may fall and
cause injury.
• Donotplaceammablespraysoroperatespray
containersneartheunitasthismayresultinre.
• Before cleaning, be sure to stop unit operation, turn
thebreakerofforremovethepowercord.
Otherwise, an electric shock and injury may result.
• Toavoidelectricshocks,donotoperatewithwet
hands.
• Donotplaceappliancesthatproducenakedames
inplacesexposedtotheairowfromtheunitas
thismayimpaircombustionoftheburner.
• Donotplaceheatersdirectlybelowtheunit,as
resultingheatcancausedeformation.
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3
READ BEFORE OPERATION
Safety precaution
CAUTION
• Donotallowachildtomountontheoutdoorunitor
avoidplacinganyobjectonit.
Falling or tumbling may result in injury.
• Do not sit or place objects on the outdoor unit.
Falling yourself or falling objects could cause injury.
• Do not block air inlets or outlets.
Impaired airow may result in insufcient performance
or trouble.
• Besurethatchildren,plantsoranimalsarenot
exposeddirectlytoairowfromtheunit,asadverse
effectsmayensue.
• Donotwashtheairconditionerortheremote
controllerwithwater,asthismayresultinelectric
shocksorre.
• Donotinstalltheairconditioneratanyplacewhere
thereisadangerofammablegasleakage.
In the event of a gas leakage, build-up of gas near the
air conditioner may result in re hazards.
• Donotplaceammablespraysneartheunitasthis
cancauseexplosions.
• Arrangethedrainhosetoensuresmoothdrainage.
Imperfect drainage may cause wetting of the building,
furniture etc.
• Arrangethedraintoensurecompletedrainage.
If proper drainage from the outdoor drain pipe does not
occur during air conditioner operation, there could be a
blockage due to dirt and debris build-up in the pipe.
This may result in a water leakage from the indoor unit.
Under these circumstances, stop air conditioner
operation and consult your dealer for assistance.
• The appliance is not intended for use by unattended
youngchildrenorinrmpersons.
Impairment of bodily functions and harm to health may
result.
• Childrenshouldbesupervisedtoensurethatthey
donotplaywiththeunitoritsremotecontroller.
Accidental operation by a child may result in impairment
of bodily functions and harm health.
• Do not let children play on or around the outdoor
unit.
If they touch the unit carelessly, injury may be caused.
•
Donotplacewatercontainers(owervases,etc.)on
theunit,asthismayresultinelectricshocksorre.
• Toavoidinjury,donottouchtheairinletor
aluminiumnsoftheunit.
• Neverpressthebuttonoftheremotecontrollerwith
a hard, pointed object.
The remote controller may be damaged.
• Donotoperatetheairconditionerwhenusinga
roomfumigationtypeinsecticide.
Fumigation chemicals deposited in the unit could endanger
the health of those who are hypersensitive to such chemicals.
• Donotplaceobjectsindirectproximityofthe
outdoorunitanddonotletleavesandotherdebris
accumulatearoundtheunit.
Leaves are a hotbed for small animals which can enter the
unit. Once in the unit, such animals can cause malfunctions,
smoke or re when making contact with electrical parts.
• Nevertouchtheinternalpartsofthecontroller.
Do not remove the front panel. Touching certain internal
parts will cause electric shocks and damage to the unit.
Please consult your dealer about checking and
adjustment of internal parts.
• Donotleavetheremotecontrollerwhereverthereis
ariskofwetting.
If water gets into the remote controller there is a risk of
electrical leakage and damage to electronic components.
• Turnoffthemainpowerswitchwhentheair
conditioner is not to be used for prolonged periods.
When the main power switch is left on, some electric
power (watts) is still consumed even if the air conditioner
is not operating. Therefore, switch off the main power
switch to save energy. When resuming operation, to
ensure smooth running, turn on the main power switch
6 hours before operating the air conditioner again.
• Watchyourstepsatthetimeofairltercleaningor
inspection.
High-place work is required, to which utmost attention
must be paid.
If the scaffold is unstable, you may fall or topple down,
thus causing injury.
• Ensurethattheremotecontrollerisnotexposedto
direct sunlight.
This will cause discoloration of the LCD display with
resulting loss of readability.
• Donotwipethecontrollerpanelwithbenzeneor
otherorganicsolvent.
This will cause discoloration and/or peeling. If the panel
needs cleaning, use a damp cloth with some water-diluted
neutral detergent. Wipe with a dry cloth afterwards.
• Donotpullortwisttheremotecontrollercord.
This may cause malfunctioning.
• Takecareofscaffoldingandexercisecautionwhen
workinghighabovegroundlevel.
• Donotoperatewiththecontrolpanellidopen.
If water gets inside the panel, it may result in equipment
failure or electric shock.
• Arrangethedrainhosetoensuresmoothdrainage.
Imperfect drainage may cause wetting.
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4
READ BEFORE OPERATION
Namesofparts
Installation site
• Installtheairconditionerinawell-ventilatedplacethatisfreeofobstructions
• Donotusetheairconditionerinthefollowingkindsofplaces:
a. Where there is considerable use of mineral oil such as cutting oil
b. Where there is much salt such as a beach area
c. Where there is sulphur gas such as in a hot-spring resort
d. Where there are considerable voltage uctuations such as a factory
e. Where there are motor vehicles or marine vessels
f. Where there is considerable atmospheric oil such as in cooking areas
g. Where there are machines generating electromagnetic radiation
h. Where the air contains acidic or alkaline steam or a vapour
• Protectionagainstsnow
For details, consult your dealer.
Regardingwiring
• Allwiringmustbeperformedbyanauthorizedelectrician.
Always consult your dealer about wiring. Never do it by yourself.
• Onlyusethededicatedpowersupplycircuitprovidedforthisairconditioner.
Also pay attention to operating noise.
• Selectthefollowingkindsoflocation:
a. A place that can sufciently withstand the weight of the air conditioner with less running noises and vibrations.
b. A place where warm airow from the air outlet of the outdoor unit and operating noise do not cause a nuisance to
neighbours.
• Be sure there are no obstructions near the air outlet of the outdoor unit.
• Obstructionsmayresultinpoorperformanceandincreasedoperatingnoise.
If abnormal noise occur, ask your dealer for advice.
Systemrelocation
• Consult your Daikin dealer about remodelling and relocation.
This operation manual is for the following systems with standard control. If your installation has a customized control
system, ask your Daikin dealer for the operation that corresponds your system.
BEFORE INSTALLATION, CONTACT YOUR DAIKIN DEALER TO CONFIRM YOUR SYSTEM TYPE.
The system provides 4 operation modes,
Operation modes
(Cooling), (Heating), (Dry) and (Fan).
ATTENTION:
• To protect the unit, turn on the main power switch 6 hours before operation.
System
Outdoor unit
Indoor unit
Remote controller
Air inlet
Air inlet
Air outlet
Air outlet
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5
READ BEFORE OPERATION
Namesofparts
RemoteController
3
8
10
9
11 4, 5, 6, 7
1
2
BRC1E62
NOTE:
This manual describe only for BRC1E62.
For other remote controllers, please see the operation manuals attached to them.
1
Mode Selector button
6
Right button “ ”
• Used to highlight the next items on the right-hand side.
• Display contents are changed to next screen per page.
* Be sure to press the part with the symbol “ ”
7
Left button “ ”
• Used to highlight the next items on the left-hand side.
• Display contents are changed to previous screen per page.
* Be sure to press the part with the symbol “ ”
8
ON/OFFbutton
• Press this button and system will start.
• Press this button again and system will stop.
9
Operationlamp(Green)
• This lamp lights up during operation.
• This lamp blinks if a malfunction occurs.
10
Cancel button
Used to return to the previous screen.
11
LCD(withbacklight)
• The backlight will be lit for approximately 30 seconds by
pressing any operation button. Press the button while the
backlight is lit. (Excluding the ON/OFF button)
• If 2 remote controllers are used to control a single indoor unit,
the backlight of the remote controller accessed rst will be lit.
Use to select the operation mode of your preference.
(Refertopage7-9.)
* Available modes vary with the connecting model.
2
AirowSettingbutton
Used to indicate the Airow Rate (Airow level/Fan Speed)/
Airow Direction screen. (Refertopage10.)
* Available fan speed and airow direction vary with the
connecting model.
3
Menu/Enterbutton
• Used to indicate the Main Menu.
• Used to enter the setting item selected.
4
Up button “ ”
• Used to raise the set temperature.
• Use to highlight the item above the current selection.
(The highlighted items will be scrolled continuously when the
button is kept pressed.)
• Used to change the item selected.
* Be sure to press the part with the symbol “ ”
5
Downbutton“ ”
• Used to lower the set temperature.
• Use to highlight the item below the current selection.
(The highlighted items will be scrolled continuously when the
button is kept pressed.)
• Used to change the item selected.
* Be sure to press the part with the symbol “ ”
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6
OPERATION
Preparation Before Operation
Tipsforsavingenergy
• Be careful not to cool (heat) the room too much.
Keeping the temperature setting at a moderate level helps save energy.
• Cover windows with a blind or a curtain.
Blocking sunlight and air from outdoors increases the cooling (heating) effect.
Recommended temperature setting
For cooling 26 to 28 °C
For heating 20 to 24 °C
Operation range
If the temperature or the humidity is beyond the following conditions, safety devices may work and the air conditioner may
not operate, or sometimes, water may drop from the indoor unit.
Cooling
INDOOR OUTDOOR
TEMPERATURE
TEMPERATURE HUMIDITY
DB 21 to 32 °C 80% or below
(Long time operation in a humidity
over 80% may cause condensation
on the unit and dripping.)
DB –5 to 46 °C
WB 14 to 25 °C
DB: Dry bulb temperature WB: Wet bulb temperature
The setting temperature range of the remote controller is 16°C to 32°C.
Heating
INDOOR
TEMPERATURE
OUTDOOR
TEMPERATURE
DB 15 to 27 °C
DB –20 to 21 °C**
WB –20 to 15.5 °C**
**–20~–15°CWB: Range for operation
–15~15.5°CWB: Range for continuous
operation
UsefulInformation
Observe the following precautions to ensure the system operates properly.
• Settheroomtemperatureappropriately.
Take care not to cool or heat the room excessively.
Adjust the temperature so that everyone in the room is comfortable.
26-28°C
during
cooling
20-24°C
during
heating
• Ventilatetheroomfromtimetotime.
Be sure to ventilate the room after using the air conditioner for a long time.
• Donotleavethedoororwindowopen.
The air will be released, and the effect of cooling/heating will be reduced.
• Donotallowdirectsunshinetoentertheroomduring
the cooling operation.
Hang a curtain or blind to the window to prevent direct sunshine.
• Keeptelevisions,radiosorstereoequipmentatleast
1meterfromtheindoorunitorremotecontroller.
Otherwise, picture
disturbance or noise may
result.
• Useowdirectionadjustmentskillfully.
Cold air collects toward the oor and hot air collects toward
the ceiling. Therefore, for cooling, set the airow horizontally,
and for heating, set the airow downward. Also, set the
airow so that it does not blow directly on your body.
• Turnoffthepowerwhentheairconditionerisnot
usedforalongtime.
With the power on, the air conditioner will consume several to
several tends of watts of power (*1)
OFF
NOTE
*1 The power consumption while the equipment is stopped
varies with the type of outdoor unit, etc. Consult your dealer
for further details on power consumption.
• Donotuseandroomheaterundertheindoorunit.
Heat may deform the indoor unit of suction grille.
• Do not place things near the air outlet or air inlet.
Such obstacles may lower the performance of the air
conditioner or make it stop.
• Whenthedisplayshows“ ”(TIMETOCLEAN
AIRFILTER),refertotheinstructionmanualofthe
indoorunit,andcleantheairlter.
• Usetimeroperationeffectively.
It takes time for the room temperature to reach the
set temperature. Therefore, use timer operation to
start the air conditioner ahead of time.
01_EN_3P344160-13U.indd 6 06-Oct-20 2:42:04 PM

7
OPERATIONOPERATION
Cooling · Heating · Fan Operation
Thisoperationmanualdescribestheexplanationforacaseinwhichthewiredremotecontrollerisused.
Whenusingthewirelessremotecontroller,refertotheattachedoperationmanual.
• Changeover cannot be made with a remote controller whose display shows “ ” (changeover under master
control).
• When the display “ ” (changeover under master control) ashes, refer to page 12.
• For protecting the mechanism, supply the power for 6 hours at rst, then operate the air conditioner.
BRC1E62
2
4,5
1. Pressmodeselectorbuttonseveraltimesandselecttheoperationmodeofyourchoiceasfollows.
Cooling Operation.......“ ” Heating Operation.......“ ” Fan Operation......“ ”
2. PressON/OFFbutton.
Operation lamp lights up and the system starts operation.
ADJUSTMENT
3. Presstemperaturesettingbuttonandprogramthesettingtemperature.
Each time this button is pressed,
the temperature setting rises or lowers 1°C.
NOTE:
• Set the temperature within the operation range shown in the table on page 6.
• The temperature cannot be set in the fan operation.
4,5.Pressairowsettingbutton.
To select air level or direction setting,
press “ ” buttons.
• With air level selected, use “ ” buttons.
• With direction selected, use “ ” buttons.
NOTE:
• In the heating operation, the fan stops during defrosting or at start up. It does not indicate any abnormality.
• Refer to page 10 for airow direction adjust (only for FXCQ, FXFQ, FXHQ, FXAQ).
01_EN_3P344160-13U.indd 7 06-Oct-20 2:42:05 PM

8
OPERATION
Cooling · Heating · Fan Operation
BRC1E62
6
STOPPING THE SYSTEM
6. PressON/OFFbuttononceagain.
• Operation lamp goes off, and the system stops operation.
• The fan may keep on running for about 1 minute after the heating operation stops.
(To start the next operation smoothly.)
ATTENTION:
• Do not turn off power immediately after the unit stops.
Then, wait no less than 5 minutes. Water is leaking or there is something else wrong with the unit.
• When the operation is started again immediately after being stopped, when the operation mode is changed over, or
when the temperature setting button is pressed then returned soon, the air conditioner will start the operation
automatically about 5 minutes later (because the air conditioner is controlled so that excessive load is not applied).
(1)Defrostoperation
• As the frost on the coil of an outdoor unit increase, heating effect decreases and the system goes into defrost
operation.
• The indoor unit fan stops and the remote controller displays shows “ ” (Defrost/Hot start).
• After 6 to 8 minutes (maximum 10 minutes) of defrost operation, the system returns to heating operation.
(2)Hotstart
• In order to prevent cold air from blowing out of an indoor unit at the start of heating operation, the indoor fan is
automatically stopped. The display of the remote controller shows “ ” (Defrost/Hot start).
(3)Operationstart
• For ordinary heating, it will take longer for the room temperature to reach the set temperature than with cooling.
We therefore recommend starting the unit ahead of time using the timer operation.
Characteristics of the heating operation
01_EN_3P344160-13U.indd 8 06-Oct-20 2:42:05 PM

9
OPERATION
ProgramDryOperation
Programdryisafunctionthatalternatesbetweenweakcoolingandstoppingtheunittoremovehumidityfrom
theair,inordertopreventtheroomtemperaturefromdroppingandbecomingtoocold.
• The microcomputer automatically controls the temperature and fan strength, so these cannot be set using the remote
controller.
• This function is not available if the room temperature is 16°C or lower.
BRC1E62
2,4
1. Pressmodeselectorbuttonseveraltimesandselect“ ”(ProgramDryOperation).
2. PressON/OFFbutton.
Operation lamp lights up and system starts operation.
ADJUSTMENT
3. Pressairowsettingbutton.(only for FXCQ, FXFQ, FXHQ, FXAQ)
Refer to page 10 for details.
STOPPING THE SYSTEM
4. PressON/OFFbuttonagain.
Operation lamp goes off, and the system stops operation.
ATTENTION:
• Do not turn off power immediately after the unit stops. Then, wait on no less than 5 minutes. Water is leaking or there is
something else wrong with the unit.
01_EN_3P344160-13U.indd 9 06-Oct-20 2:42:05 PM

10
OPERATION
AdjustingtheAirowDirection
• Press the airow setting button to adjust the airow angle. (only for FXCQ, FXFQ, FXHQ, FXAQ)
BRC1E62
1. Pressairowsettingbutton
To select air level or direction setting,
press “ ” buttons.
With direction selected,
use “ ” buttons.
Movementoftheairowap
For the following conditions, microcomputer controls the airow direction so it may be different from the display.
Operationmode Cooling Heating
Operation conditions
• When room temperature is lower than the set
temperature
• When continuous operation with downward
airow is performed at the time of cooling
with a ceiling-suspended or a wall-mounted
unit, the microcomputer may control the ow
direction, and then the user interface
indication will also change.
• When room temperature is higher than the
set temperature
• At defrost operation
• When operating continuously at horizontal airow direction
The airow direction can be adjusted in either of the following ways.
• Automatic
The airow ap adjusts its position itself.
• Fixed airow direction
The airow direction can be xed by the user.
<Automatic>
FXCQ, FXFQ FXHQ FXAQ
<Fixedairowdirection>
FXCQ, FXFQ FXHQ FXAQ
ATTENTION:
• The movable limit of the ap is changeable. Contact your Daikin dealer for details. (Only for FXCQ, FXFQ, FXHQ and FXAQ.)
• Avoid operating in the horizontal direction “ ” which may cause dew or dust to settle on ceiling.
01_EN_3P344160-13U.indd 10 06-Oct-20 2:42:05 PM

11
OPERATION
OFF TIMER Operation
BRC1E62
2,4,6
8
1,3,5,
7,9
1. PressMenu/Enterbutton.
Basic screen
2. Press “ ” buttons to select
EnergySavingOptions.
3. PressMenu/Enterbuttonto
displaytheEnergySaving
Options screen.
4. Press “ ” buttons to select
the OffTimer.
5. PressMenu/Enterbuttonto
displaytheOffTimerscreen.
6. Press “ ” buttons to set the
timefromoperationstartuntil
theunitautomaticallystops.
Selectionscanbemadein
incrementsof10minutesfrom
30to180minutes.
Holdingdownthebuttoncauses
thenumbertochange
continuously.
7. Selectthedesiredtimeandpress
Menu/Enterbutton.
Theconrmationscreenappear.
8. Press “ ” button to select
Yes .
9. PressMenu/Enterbuttonto
conrmtheOffTimersettings
and return to the Basic screen.
01_EN_3P344160-13U.indd 11 06-Oct-20 2:42:06 PM

12
OPERATION
HowtosetMasterRemoteController
• When the right to select the cooling/heating operation mode is set in the master remote controller, “ ” is
displayed in slave remote controllers.
The right to select the cooling/heating operation mode cannot be set in slave remote controllers.
BRC1E62
1,2
• When the system is installed as shown below, it is necessary to designate the master remote controller.
• Only the remote controller having the right to select the cooling/heating operation mode (master remote controller)
can select the cooling/heating operation mode.
One of these remote controllers needs to be
designated as the master remote controller.
When one outdoor unit
is connected with
several indoor units.
Outdoor unit
Indoor unit
• The displays of slave remote controllers show “ ” (changeover under master control) and they
automatically follow the operation mode directed by the master remote controller. (This symbol is not displayed in
wireless remote controllers.)
However, it is possible to changeover to program dry with slave remote controller only if the system is in cooling
operation set by the master remote controller.
Setting the master remote controller
01_EN_3P344160-13U.indd 12 06-Oct-20 2:42:06 PM

13
OPERATION
Howtodesignatethemasterremotecontroller
1. Press the mode selector button of the current master user interface for 4 seconds. In case this procedure was not yet
performed, the procedure can be executed on the rst user interface operated. The display showing
“ ” (changeover under master control) of all slave user interfaces connected to the same outdoor unit ashes.
2. Press the mode selector button of the controller that you wish to designate as the master user interface. Then
designation is completed.
This user interface is designated as the master user interface and the display showing “ ” (changeover under
master control) vanishes. The displays of other user interfaces show “ ” (changeover under master control).
Inthecaseofwirelessremotecontrollers
1. Continuously press the modeselector buttonofthecurrentmasterindoorunitfor4seconds.
Thetimerlampashesinallindoorunitsconnectedtothesameoutdoorunit.
2.
Pressthemodeselectorbuttonoftheindoorunitthatyouwishtodesignateasthemasterindoorunit.
A“beep”soundisissued,andthetimerlampturnsoff.Thisindoorunitisdesignatedasthemasterunit.
3. Press the
modeselector buttonofthemasterindoorunitseveraltimes,andselecttheoperationmodethatyou
wish.
Every time the mode selector button is pressed, the indication is changed over in the sequence “fan” → “dry” →
“cooling” → “heating”.
The indication in other slave indoor unit is changed over while following up the indication in the master indoor unit.
1. Whenmasterremotecontroller(inwhich“ ” is
not displayed) is set to “cooling” or “heating”
Otherslaveremotecontrollers(inwhich“ ” is
displayed)
• The operation mode is changed over to the mode
selected in the master remote controller.
Displayinslaveremotecontrollers
1. The set temperature selected in the same mode at the
previous time is displayed.
2. The initial setting is displayed.
(When the mode is set for the rst time.)
Cooling: 28°C Heating: 22°C
• However, changeover to the fan operation and
changeover from “cooling” to “dry” are available.
Inthecaseofwirelessremotecontrollers
When an operation mode different from the currently selected
operation mode is selected in a slave remote controller, a long
“beep” sound is issued to notify that the mode is in conict.
2. Whenmasterremotecontroller(inwhich
“ ” is not displayed) is set to “fan”.
Otherslaveremotecontrollers(inwhich
“ ” is displayed)
• Only “fan” is available.
PRECAUTIONSFORGROUPCONTROLSYSTEMORTWOREMOTECONTROLLERCONTROLSYSTEM
This system provides two other control systems beside individual control (one remote controller controls one indoor unit)
system. Conrm the following if your unit is of the following control system type.
• Groupcontrolsystem
One remote controller controls up to 16 indoor units. All indoor units are equally set.
• Tworemotecontrollercontrolsystem
Two remote controllers control one indoor unit (in case of group control system, one group of indoor units). The unit is
individually operated.
NOTE:
• Contact your Daikin dealer in case of changing the combination or setting of group control and two remote controller
control systems.
Contents and functions of operation
01_EN_3P344160-13U.indd 13 06-Oct-20 2:42:06 PM

14
TROUBLE SHOOTINGTROUBLE SHOOTING
Trouble Shooting
These cases are not troubles.
The following cases are not air conditioner troubles but have some reasons. You may just continue using it.
Case Explanation
Does not operate at all. • Check if the fuse has blown.
Set power switch to off.
• Check if breaker has worked.
Turn the power on with the breaker switch in the
off position.
Do not turn the power on with the breaker switch in the trip position.
(Contact your dealer.)
• When the power is interrupted.
Wait until the power is recovered, then operate the air conditioner again.
The air conditioner automatically resumes operation in about 3 minutes.
You should just wait for a while.
Operation does not start soon.
• When ON/OFF button was pressed
soon after operation was stopped.
• When the mode was reselected.
• This is to protect the air conditioner.
You should wait for about 5 minutes.
(The microcomputer is preparing for operation. Wait for about 10 minutes.)
Hotairdoesnotowoutsoonafter
thepowersupplyisturnedon.
•
The air conditioner is warming up.You should wait for about 1 minute. (The system
is designed to start discharging air only after it has reached a certain temperature.)
The heating operation stops suddenly
andaowingsoundisheard.
• The system is taking away the frost on the outdoor unit.
You should wait for about 3 to 8 minutes. (Max. 10 minutes).
•
This sound indicates that the valve for the refrigerant bypass is in operation.
A“Zeen”soundisheardimmediately
afterthepowersupplyisturnedon.
• The electronic expansion* valve inside an indoor unit starts working and
makes the noise. Its volume will reduce in about one minute.
* Electronic expansion valve … Controls the ow rate of the gas
(refrigerant) owing inside the indoor unit.
Acontinuouslow“Shah”soundis
heardwhenthesystemisincooling
operation or at a stop.
• When the drain pump (optional accessories) is in operation, this noise is
heard.
A“Pishi-pishi”squeakingsoundis
heardwhenthesystemstopsafter
heating operation.
• Expansion and contraction of plastic parts caused by temperature change
makes this noise.
Alow“Sah”,“Choro-choro”soundis
heardwhileanindoorunithasstopped.
• When the other indoor unit is in operation, this noise is heard. In order to prevent oil and
refrigerant from remaining in the system, a small amount of refrigerant is kept owing.
Acontinuouslow“Shuh”soundis
heardwhenthesystemsisincooling
or defrost operation.
• This is the sound of refrigerant gas owing through both indoor and
outdoor units.
A“Shuh”soundwhichisheardatthestart
orimmediatelyafterthestopofoperation
orwhichisheardatthestartorimmediately
after the stop of defrost operation.
• This is the noise of refrigerant caused by ow stop and ow change.
Whenthetoneofoperatingnoisechanges. • This noise caused by the change of frequency.
A continuous “shuh” sound generated
duringoperationorimmediatelyafter
the operation is started or stopped.
• This sound indicates that the valve for the refrigerant bypass is in operation.
Theoutdoorunitemitswaterorsteam. In heating mode
• The frost on the outdoor unit melts into water or steam when the air
conditioner is in defrost operation.
In cooling or dry mode
• Moisture in the air condenses into water on the cool surface of outdoor
unit piping and drips.
Mistscomeoutoftheindoorunit. • This happens when the air in the room is cooled into mist by the cold
airow during cooling operation.
• If the inside of an indoor unit is extremely contaminated, the temperature
distribution inside a room becomes uneven. It is necessary to clean the
inside of the indoor unit. Ask your Daikin dealer for details on cleaning the
indoor unit. This operation requires a qualied service person.
ON
Switch
Trip position
OFF
Breaker
01_EN_3P344160-13U.indd 14 06-Oct-20 2:42:06 PM

15
TROUBLE SHOOTING
Case Explanation
Theindoorunitgivesoutodour. This happens when smells of the room, furniture, or cigarettes are
absorbed into the unit and discharged with the airow.
(If this happens, we recommend you to have the indoor unit washed by a
technician. Consult the service shop where you bought the air conditioner.)
Theoutdoorfanrotateswhiletheair
conditioner is not in operation.
After operation is stopped:
•
The outdoor fan continues rotating for another 60 seconds for system protection.
While the air conditioner is not in operation:
• When the outdoor temperature is very high, the outdoor fan starts
rotating for system protection.
The operation stopped suddenly.
(operationlampison)
For system protection, the air conditioner may stop operating on a sudden
large voltage uctuation.
It automatically resumes operation in about 3 minutes.
“ ”isdisplayedontheremote
controller,andthedisplayedcontentsash
forseveralsecondswhenanoperation
button is pressed.
Whenthreeshort“beep”soundsareissued
inthecaseofwirelessremotecontroller.
• The air conditioner is controlled by the central equipment.
Flashing of the displayed contents indicates that the remote controller is
invalid for control.
COOLcannotbechangedover.
• Whenthedisplayshows“ ”
(changeoverundermastercontrol),
itshowsthatthisisaslaveremote
controller.
Whenalong“beep”soundisissuedin
thecaseofwirelessremotecontroller.
• Refer to page 12.
Theliquidcrystaloftheremote
controllershows“ ”immediately
afterthepowersupplyisturnedon.
• This shows that the remote controller is in normal condition.
This continues for one minute.
Thecompressorintheoutdoorunitdoes
not stop after a short heating operation.
• This is to prevent oil and refrigerant from remaining in the compressor.
The unit will stop after 5 to 10 minutes.
Theinsideofanoutdoorunitiswarm
whentheunithasstopped.
•
This is because the crankcase heater is warming the compressor even
while the outdoor unit is stopped so that the compressor can start smoothly.
Whentheairconditionerhasnotbeenused
(thepowerhasbeenoff)foralongtime.
• For protecting the mechanism, supply the power for 6 hours at rst, then
operate the air conditioner.
Warmairexitstheuniteventhoughitisoff.
Youcanfeelhotaircomingoutoftheunit.
• Multiple units are operating on the same system, so if a unit in another
room is operating, some refrigerant will ow through the stopped units, too.
Calltheserviceshopimmediately.
WARNING
When an abnormality (such as a burning smell) occurs, stop operation and turn the breaker OFF.
Continued operation in an abnormal condition may result in troubles, electric shocks or re.
Consult the service shop where you bought the air conditioner.
Do not attempt to repair or modify the air conditioner by yourself.
Incorrect work may result in electric shocks or re.
Consult the service shop where you bought the air conditioner.
If one of the following symptoms takes place, call the service shop immediately.
Thepowercordisabnormallyhotordamaged.
Anabnormalsoundisheardduringoperation.
 The safety breaker, a fuse, or the earth leakage breaker cuts off the operation frequently.
Aswitchorabuttonoftenfailstoworkproperly.
Thereisaburningsmell.
Waterleaksfromtheindoorunit.
Turn the breaker
OFF and call the
service shop.
After a power failure
The air conditioner automatically resumes operation in
about 3 minutes.You should just wait for a while.
Lightning
If lightning may strike the neighbouring area, stop
operation and turn the breaker OFF for system protection.
01_EN_3P344160-13U.indd 15 06-Oct-20 2:42:06 PM

16
TROUBLE SHOOTING
Checkthefollowingbeforerequesting
service
Symptom Action and contact
Safety equipment such as fuses, circuit
breakers, leakage breaker, etc. are set
off occasionally.
Do not set power switch to on.
Operating switch function is not secure. Set power switch to off.
Water leaks from the air conditioner. Stop operation.
• If a malfunction occurs, either one of
the following messages will appear on
the Basic screen during operation.
“Error: Push Menu button.”
* The Operation lamp will blink.
“Warning: Push Menu button.”
* The Operation lamp will not blink.
Return Setting
Operation lamp
• Press Menu/Enter button.
• The Error code blinks and the contact address and model name will appear.
• Notify your local dealer of the Error code and Model name.
Symptom Cause Remedy
Themachinedoesnotworkatall. Blown fuse or open breaker Replace the fuse or close the breaker.
Power outage If the main power supply is turned off
during operation, operation will restart
automatically after power turns back
again.
Themachinerunsbutstops
soon.
Blocked air inlet or air outlet of the
indoor or outdoor unit
Remove the obstacle.
Themachinedoesnotwork
properly.
Blocked air inlet or air outlet of indoor
or outdoor unit
Remove the obstacle.
Improper temperature setting See page 7.
Low fan speed setting See page 7.
Improper airow direction
See page 10.
Window or door open Close.
Direct sunshine Put up a curtain or blind over the
window.
Too many people in the room –
Too many heat sources in the room
If the air lter clogged. Refer to the instruction manual of the
indoor unit, and clean the air lter.
NOTE:
• Check the above items, and if the problem still cannot be xed, contact your dealer for repair, stating the symptom(s)
and the model name.
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17
TROUBLE SHOOTING
TypesofAir-Conditioner
Item Model RXYMQ5BVM RXYMQ6BVM
Type
Cooling method of condenser Air-cooling type
Blowing method Direct air discharge type
Cooling capacity (kW) 14.0 16.0
Heating capacity (kW) 14.0 16.0
After-SalesService
CAUTION
• Donotdisassemble,modifyorrepairtheairconditionerbyyourself.
Improper disassembly, modication or repair may cause water leakage, electric shock or re.
Ask your dealer for such servicing.
• Donotmoveandinstalltheairconditionerbyyourself.
Improper reinstallation may cause water leakage, electric shock or re.
Ask your dealer for reinstallation.
• Objectswhichcanstartrearestrictlyprohibitediftherefrigerantleaks.
The refrigerant used in the air conditioner is safe, and does not leak usually.
If the refrigerant leaks into the room and becomes contact with burning appliances such as fan
heater, stove and cooker, however, harmful gases may be generated.
Turn off burning appliances, ventilate the room, and contact your dealer.
After asking for repair of refrigerant leakage, conrm to the service personnel that the leaking
positions are repaired securely, then start the operation.
Werecommendperiodicalmaintenance
In certain operating conditions, the inside of the air conditioner may get foul after several seasons of use, resulting in poor
performance. It is recommended to have periodical maintenance by a specialist aside from regular cleaning by the user.
For specialist maintenance, contact the service shop where you bought the air conditioner.
The maintenance cost must be borne by the user.
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