Samsung AG TN1DKH Series User manual

FanCoilUnit
Usermanual
AG***TN1DKH*
• Thank you forpurchasing this Samsungfan coil unit.
• Before operating this unit, please read this usermanual carefullyand retain it forfuture reference.

2English
Contents
CorrectDisposalofThis Product
(WasteElectrical&ElectronicEquipment)
(Applicableincountrieswithseparatecollectionsystems)
This marking on the product, accessories orliterature indicates that the product and its electronic accessories
(e.g. charger, headset, USB cable) should not be disposed of with otherhouseholdwaste atthe end of their
working life. To prevent possible harm to the environment orhuman health from uncontrolledwaste disposal,
please separate these itemsfrom othertypes of waste and recycle them responsiblyto promote the sustainable
reuse of material resources.
Household users should contact eitherthe retailerwhere theypurchasedthis product, ortheirlocal government
office, fordetails ofwhere and howtheycan take these itemsforenvironmentallysafe recycling.
Business users should contact theirsupplierand check the terms and conditions ofthe purchase contract. This
product and its electronic accessories should not be mixedwith othercommercialwastes fordisposal.
Forinformation on Samsung’s environmental commitments and product-specific regulatoryobligations,
e.g. REACH,WEEE, Batteries,visit: www.samsung.com/uk/aboutsamsung/sustainability/environment/our-
commitment/data/
SafetyInformation 3
SafetyInformation 3
AtaGlance 11
Fan Coil Unit Overview 11
OperationFeatures 12
Operating temperature and humidity 12
CleaningandMaintenance 13
Cleaningand Maintaining 13
Cleaning thefan coil unit 13
Cleaning the airfilter 14
Periodical maintenance 17
Troubleshooting 18
Technical specifications 21

3
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SafetyInformation
SafetyInformation
Before usingyournewfan coil unit, please read this manualthoroughlyto ensure
ϩ˵ɇϩцͱЇͱи˵ͱиϩͱϑɇ˙ʪцɇʒʪ˙ѣʀʪϩцͱΧʪθɇϩʪϩ˵ʪʪуϩʪϑЭʪ˙ʪɇϩЇθʪϑɇʒ
functions ofyournewappliance.
Because thefollowing operating instructions covervarious models, the
characteristics ofyourfan coil unit maydifferslightlyfrom those described in
ϩ˵ϑɇЇɇࢋÃ˙цͱЇ˵ɇЭʪɇцαЇʪϑϩͱϑࡡʀɇцͱЇθʪɇθʪϑϩʀͱϩɇʀϩʀʪϩθʪͱθѣʒ
help and information online atwww.samsung.com.
WARNING
Hazards orunsafe practices that mayresult in severe personal injury ordeath.
CAUTION
Hazards orunsafe practices that mayresult in minorpersonal injuryorproperty
damage.
Followdirections.
Do NOTattempt.
Make surethe machine is grounded to prevent electric shock.
Cut-off the powersupply.
Do NOTdisassemble.
FORINSTALLATION
WARNING
Ƹϑʪϩ˵ʪΧͱиʪθʪиϩ˵ϩ˵ʪΧͱиʪθϑΧʪʀѣʀɇϩͱϑͱ˙ϩ˵ʪΧθͱʒЇʀϩͱθ˵˝˵ʪθ
and usethe powerlineforthis appliance only. Inaddition, donot use an
extensionline.
• kуϩʪʒ˝ϩ˵ʪΧͱиʪθʪɇцθʪϑЇϩʪʪʀϩθʀϑ˵ͱʀͱθѣθʪࢋ
• UͱͱϩЇϑʪɇʪʪʀϩθʀϩθɇϑ˙ͱθʪθࢋƟ˵ϑɇцθʪϑЇϩʪʪʀϩθʀϑ˵ͱʀͱθѣθʪࢋ
• If thevoltage/frequency/rated current condition is different, it maycause
ѣθʪࢋ

4
SafetyInformation
English
SafetyInformation
Ɵ˵ʪϑϩɇɇϩͱͱ˙ϩ˵ϑɇΧΧɇʀʪЇϑϩɵʪΧʪθ˙ͱθʪʒɵцɇαЇɇѣʪʒ
technicianorservicecompany.
• ɇ˝ϩͱʒͱϑͱɇцθʪϑЇϩʪʪʀϩθʀϑ˵ͱʀࡡѣθʪࡡʪуΧͱϑͱࡡΧθͱɵʪϑиϩ˵
the product, orinjuryand mayalsovoidwarrantyon the installed product.
Install aIsolation Switchnexttothe FanCoilUnit (but notonthe panelsof
theFanCoilUnit)and circuitbreakerdedicatedtothefancoilunit.
• ɇ˝ϩͱʒͱϑͱɇцθʪϑЇϩʪʪʀϩθʀϑ˵ͱʀͱθѣθʪࢋ
Uͱͱϩϑϩɇϩ˵ϑɇΧΧɇʀʪʪɇθɇ˵ʪɇϩʪθࡡѤɇɇɵʪɇϩʪθɇࢋUͱ
not installthis appliance ina humid,oilyordustylocation, ina location
exposedto directsunlight andwater(raindrops).Do notinstall this
applianceinalocationwheregasmayleak.
• Ɵ˵ϑɇцθʪϑЇϩʪʪʀϩθʀϑ˵ͱʀͱθѣθʪࢋ
This appliance mustbe properlygrounded. Do notgroundthe applianceto
agaspipe,plasticwaterpipe,ortelephoneline.
• ɇЇθʪϩͱʒͱϑͱɇцθʪϑЇϩʪʪʀϩθʀϑ˵ͱʀࡡѣθʪࡡɇʪуΧͱϑͱࡡͱθͱϩ˵ʪθ
problemswith the product.
• Neverplug the powercord into a socketthat is not grounded correctlyand
make sure that it is in accordancewith local and national codes.
CAUTION
ÃϑϩɇцͱЇθɇΧΧɇʀʪͱɇʪЭʪɇʒ˵ɇθʒѤͱͱθϩ˵ɇϩʀɇϑЇΧΧͱθϩϩϑиʪ˝˵ϩࢋ
• Failing to do so mayresult in abnormalvibrations, noise, orproblemswith
the product.
When installingthe product, makesuretoinstall thedraininghose
properly,sothatwaterisdrainedcorrectly.
• ɇ˝ϩͱʒͱϑͱɇцθʪϑЇϩиɇϩʪθͱЭʪθѤͱи˝ɇʒΧθͱΧʪθϩцʒɇɇ˝ʪࢋ

5
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SafetyInformation
If usingthe product afterbeing leftidleforan extended periodoftime,
makesuretoopenthe airventvalvetoreleaseair.
• Runningwaternoises mayoccurinside, orcooling/heating performance
maydegrade.
• Use a bucket orhose to catchwater. If using Cool mode only, in thewinter
season, make sure to remove stagnantwaterto prevent the product from
freezing and bursting.Afterdrainage, lock thevalve securely.
ƟͱϩЇθͱϩ˵ʪΧθͱʒЇʀϩࡡϑϩɇθϩϩ˵ʪ˙ɇʀͱЇϩѣθϑϩɇʒϩ˵ʪϑϩɇθϩϩ˵ʪ˵ʪɇϩ
sourcedevice,e.g.chillerorboiler.
Toturn offthe product, stopthe heatsource device, e.g.chillerorboiler,
ѣθϑϩɇʒϩ˵ʪϑϩͱΧϩ˵ʪ˙ɇʀͱЇϩࢋ
Ifthe heatsourcedevice, e.g.chillerorboiler,will notbe usedformorethan
fourhourswheninCoolmode,stopwatercirculation.
Ifitisimpossibletostopwatercirculation,decreasethefanspeed.
• If coldwaterrunswhen the fan of thefan coil unit is off, condensation may
occuron the fan coil unit components, such asthe main unit, motoror
grille, and affectthe lifespan of the product.
Donotusethe productinahotandhumidlocationwithrelativehumidity
over80%.
• Ɵ˵ʪθʪϑθϑͱ˙ѣθʪɇʒΧθͱΧʪθϩцͱϑϑʒЇʪϩͱиɇϩʪθʒθͱΧΧ˝˙θͱϩ˵ʪ
product.
Whenusingtheproductinthewinter,continuouslyoperatethewater
pumpto circulatewater.
Ifthe productwill notbe usedforlongperiods oftime,completelydrainthe
system.
• The product mayfreeze and burst, resulting in propertyloss.

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SafetyInformation
FORPOWERSUPPLY
WARNING
Whenthecircuitbreakeris damaged, contactyournearestservicecentre.
Donotpullorexcessivelybendthepowerline.Donottwistortiethepower
line. Do nothookthe powerline overa metal object,placea heavyobject
onthepowerline,insertthepowerlinebetweenobjects,orpushthe power
lineintothespacebehindtheappliance.
• Ɵ˵ϑɇцθʪϑЇϩʪʪʀϩθʀϑ˵ͱʀͱθѣθʪࢋ
CAUTION
When notusingthe fan coilunit fora longperiod oftime orduring a
thunder/lightningstorm,cutthe poweratthecircuitbreaker.
• ɇ˝ϩͱʒͱϑͱɇцθʪϑЇϩʪʪʀϩθʀϑ˵ͱʀͱθѣθʪࢋ
Cutoffthepowertothevalvebefore cutting offthepowertotheproduct.
• Poweris consumed if the powersupplyis connected.
• Install an electrictwo-wayvalve at the inlet of thefan coil unit. If avalve is
ͱϩϑϩɇʪʒࡡʀͱʒɇʒ˵ͱϩиɇϩʪθʀθʀЇɇϩͱʀͱϩЇʪϑࢋǮɇϩʪθѤͱͱʒ˝ɇц
occurdue to condensationwater. Eitherkeep supplying powerto enable
drainage, orcheck that coldwateris not supplied.

7
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SafetyInformation
FORUSING
WARNING
Ã˙ϩ˵ʪɇΧΧɇʀʪϑѤͱͱʒʪʒࡡΧʪɇϑʪʀͱϩɇʀϩцͱЇθʪɇθʪϑϩϑʪθЭʀʪʀʪϩθʪࢋ
• ɇ˝ϩͱʒͱϑͱɇцθʪϑЇϩʪʪʀϩθʀϑ˵ͱʀͱθѣθʪࢋ
Ifthe appliance generatesa strange noise, aburning smellorsmoke,
unplugthe powerplug immediatelyand contactyournearest service
centre.
• ɇ˝ϩͱʒͱϑͱɇцθʪϑЇϩʪʪʀϩθʀϑ˵ͱʀͱθѣθʪࢋ
Inthe eventof a gasleak(such as propane gas, LPgas, etc.),ventilate
immediatelywithouttouchingthe powerline. Do nottouchthe appliance
orpowerline.
• Do not use aventilating fan.
• ϑΧɇθɇцθʪϑЇϩɇʪуΧͱϑͱͱθѣθʪࢋ
Toreinstallthefancoilunit,pleasecontactyournearestservicecentre.
• Failing to do so mayresult in problemswith the product,waterleakage,
ʪʪʀϩθʀϑ˵ͱʀࡡͱθѣθʪࢋ
• Adeliveryservice forthe product is not provided. Ifyou reinstallthe
product in anotherlocation, additional construction expenses and an
installation feewill be charged.
• Especially,whenyouwish to install the product in an unusual location
such as in an industrial area ornearthe seaside where it is exposed to salt
in the air, please contactyournearest service centre.
Donottouchthecircuitbreakerwithwethands.
• This mayresult in electric shock.
Donotturnthefancoilunitoffwiththecircuitbreakerwhileitisoperating.
• Turning the fan coil unit off and then on againwith the circuit breakermay
ʀɇЇϑʪɇϑΧɇθɇʒθʪϑЇϩʪʪʀϩθʀϑ˵ͱʀͱθѣθʪࢋ

8
SafetyInformation
English
SafetyInformation
Afterunpackingthe fan coilunit, keepall packaging materialswellout of
thereachofchildren,as packagingmaterialscanbedangeroustochildren.
• If a child places a bag overits head, it mayresult in suffocation.
UͱͱϩϩͱЇʀ˵ϩ˵ʪ˙θͱϩΧɇʪиϩ˵цͱЇθ˵ɇʒϑͱθѣ˝ʪθϑʒЇθ˝ϩ˵ʪ˵ʪɇϩ˝
operation.
• This mayresult in electric shock orburns.
UͱͱϩϑʪθϩцͱЇθѣ˝ʪθϑͱθ˙ͱθʪ˝ϑЇɵϑϩɇʀʪϑϩͱϩ˵ʪͱЇϩʪϩи˵ʪϩ˵ʪ
fancoilunit is operatingorthefrontpanelisclosing.
• Take special care that children do not injure themselves byinserting their
ѣ˝ʪθϑϩͱϩ˵ʪΧθͱʒЇʀϩࢋ
UͱͱϩϑʪθϩцͱЇθѣ˝ʪθϑͱθ˙ͱθʪ˝ϑЇɵϑϩɇʀʪϑϩͱϩ˵ʪɇθʪϩࢥͱЇϩʪϩͱ˙
thefancoilunit.
• Take special care that children do not injure themselves byinserting their
ѣ˝ʪθϑϩͱϩ˵ʪΧθͱʒЇʀϩࢋ
Donotstrikeorpullthefancoilunitwithexcessiveforce.
• Ɵ˵ϑɇцθʪϑЇϩѣθʪࡡЇθцࡡͱθΧθͱɵʪϑиϩ˵ϩ˵ʪΧθͱʒЇʀϩࢋ
Donot usethisfancoil unitforlongperiods oftime inbadlyventilated
ͱʀɇϩͱϑͱθʪɇθѣθΧʪͱΧʪࢋ
• Sincethis maybe dangerous due to a lack of oxygen, open awindowat
least once an hour.
If anyforeignsubstance suchaswaterhas enteredthe appliance,cut-off
thepowersupplyandcontactthenearestservicecenter.
• ɇ˝ϩͱʒͱϑͱɇцθʪϑЇϩʪʪʀϩθʀϑ˵ͱʀͱθѣθʪࢋ
Donotattempttorepair,disassemble,ormodifytheapplianceyourself.
• Do not use anyfuse (such as copper, steelwire, etc.)otherthan the
standard fuse.
• ɇ˝ϩͱʒͱϑͱɇцθʪϑЇϩʪʪʀϩθʀϑ˵ͱʀࡡѣθʪࡡΧθͱɵʪϑиϩ˵ϩ˵ʪ
product, orinjury.

9
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SafetyInformation
CAUTION
Donotplaceobjectsordevicesunderthefancoilunit.
• ǮɇϩʪθʒθΧΧ˝˙θͱϩ˵ʪ˙ɇʀͱЇϩɇцθʪϑЇϩѣθʪͱθΧθͱΧʪθϩцʒɇɇ˝ʪࢋ
Max current is measured according to IEC standard forsafetyand current is
ʪɇϑЇθʪʒɇʀʀͱθʒ˝ϩͱÃƊĮϑϩɇʒɇθʒ˙ͱθʪʪθ˝цʪ˙ѣʀʪʀцࢋ
Donot standon top ofthe appliance orplace objects(such aslaundry,
lighted candles,lightedcigarettes, dishes,chemicals,metal objects, etc.)
ontheappliance.
• Ɵ˵ϑɇцθʪϑЇϩʪʪʀϩθʀϑ˵ͱʀࡡѣθʪࡡΧθͱɵʪϑиϩ˵ϩ˵ʪΧθͱʒЇʀϩࡡͱθЇθцࢋ
Donotoperatethe appliancewithwethands.
• This mayresult in electric shock.
Donot sprayvolatilematerialsuch asinsecticide ontothe surface ofthe
appliance.
• Aswell as being harmfulto humans, it mayalso result in electric shock,
ѣθʪͱθΧθͱɵʪϑиϩ˵ϩ˵ʪΧθͱʒЇʀϩࢋ
Donotdrinkthewaterfromthefancoilunit.
• Thewatermay be harmful to humans.
Donot applya strong impacttothe remotecontrollerand do not
disassembletheremotecontroller.
Donottouchthepipes connectedwiththe product.
• This mayresult in burns orinjury.
Donot usethisfancoil unittopreserve precision equipment,food,animals,
plantsorcosmetics,orforanyotherunusual purposes.
• This mayresult in propertydamage.
ЭͱʒʒθʪʀϩцʪуΧͱϑ˝˵ЇɇϑࡡɇɇϑͱθΧɇϩϑϩͱϩ˵ʪɇθѤͱи˙θͱϩ˵ʪ
fancoilunitforlongperiods oftime.
• This mayresult in harm to humans, animals orplants.

10
SafetyInformation
English
SafetyInformation
This appliance isnot intendedforuse bypersons (includingchildren)with
reducedphysical,sensoryormental capabilities, orlack ofexperience
and knowledge, unlesstheyhavebeen given supervisionorinstruction
concerninguse ofthe appliancebya person responsiblefortheirsafety.
Childrenshould besupervisedto ensurethattheydo notplaywith the
appliance.
Foruse inEurope: Thisappliancecanbe used bychildrenaged from 8
yearsand above andpersonswith reducedphysical,sensoryormental
capabilities orlack of experienceand knowledgeif theyhavebeen given
supervisionorinstructionconcerninguseofthe appliancein a safeway
and understandthe hazards involved. Children shall notplaywiththe
appliance.Cleaning andusermaintenanceshall notbe madebychildren
withoutsupervision.
FORCLEANING
WARNING
Donot cleanthe appliance bysprayingwaterdirectlyontoit. Donot use
benzene,thinner,alcoholoracetonetocleantheappliance.
• Ɵ˵ϑɇцθʪϑЇϩʒϑʀͱͱθɇϩͱࡡʒʪ˙ͱθɇϩͱࡡʒɇɇ˝ʪࡡʪʪʀϩθʀϑ˵ͱʀͱθѣθʪࢋ
Before cleaningorperformingmaintenance,cut-offthe powersupplyand
waituntilthefanstops.
• ɇ˝ϩͱʒͱϑͱɇцθʪϑЇϩʪʪʀϩθʀϑ˵ͱʀͱθѣθʪࢋ
CAUTION
Donotcleantheinsideofthefancoilunitbyyourself.
• Forcleaning inside the appliance, contactyournearest service center.
• Ǯ˵ʪʀʪɇ˝ϩ˵ʪϩʪθɇѣϩʪθࡡθʪ˙ʪθϩͱϩ˵ʪʒʪϑʀθΧϩͱϑϩ˵ʪ࣫Aʪɇ˝
and maintaining’section.
• ɇЇθʪϩͱʒͱɇцθʪϑЇϩʒɇɇ˝ʪࡡʪʪʀϩθʀϑ˵ͱʀͱθѣθʪࢋ

11
English
AtaGlance
The product appearance and labels maydifferfromthe illustrations, depending on the model and
paneltype.
FanCoilUnitOverview
02
01
04
05
03
01 Display
Indication Function
Operation indicator
• Heating and cooling model:
Operation (Blue) / Defrost (Yellow)
• Cooling onlymodel: Operation
indicator
Timerindicator
Fan indicator
Filtercleaning indicator
02 Remote control sensor
03 θѤͱиɵɇʒʪ
04 Wind-Free panel
(You can use theWind-Free Cooling function
when the Cool orFan mode is running.)
(Referto the remote control manualfor
product operation)
05 Airintake

12 English
AtaGlance
If using the product in a locationwith temperature and humidityoutside the standard operating
range, the protective system activates and the product may not operate. Use the product under
conditionswith temperature and humiditywithin the standard operating range.
OperationFeatures
Operatingtemperatureandhumidity
Mode Indoortemperature Indoorhumidity
Cool 18 °C to 32 °C 80% orless
Heat 30 °C orless -
NOTE
• Condensation mayform on the product, if using Cool mode underhigh humidity conditions for
an extended period of time.
• Ã˙ͱΧʪθɇϩ˝ϩ˵ʪ˙ɇʀͱЇϩЇʒʪθʀͱʒϩͱϑиϩ˵иɇϩʪθϩʪΧʪθɇϩЇθʪͱЭʪθߧߦঐࡡΧθͱϩʪʀϩЭʪ
control (shutdown) mode mayactivate to protect the product.

13
English
CleaningandMaintenance
CleaningandMaintaining
CAUTION
• Before cleaning, be sure to turn off thefan coil unit and the auxiliarypowerswitch (MCCB, ELB).
Cleaningthefancoilunit
Wipe the surface of the indoorunitwith a
tepid damp cloth.
Removethe dust accumulated in the narrow
gaps of the productwith a soft brush.
CAUTION
• Do not use alkaline detergent, sulphuric
acid, hydrochloric acid, ororganic solvents
(such as thinner, kerosene, and acetone) to
clean the surfaces.
• Do not attach anystickers on the surfaces
because this maycause damage.
• Whenyou clean the heat exchangeron the
indoorunit, you need to disassemble the
indoorunit. Therefore,you must contact
the local service centerforhelp.

14
CleaningandMaintaining
English
CleaningandMaintenance
Aʪɇ˝ϩ˵ʪɇθѣϩʪθ
CAUTION
• Before cleaning, be sure to turn off thefan coil unit and the auxiliarypowerswitch (MCCB, ELB).
• Be sureto holdthe grillewith a hand to prevent droppingfrom the opening of thefront grille.
1 Uʪϩɇʀ˵˝ɇʒθʪΧɇʀ˝ϩ˵ʪɇθѣϩʪθ
PUSH
Press the PUSH signs on the front panel,
then open the grille.
ťθʪϑϑϩ˵ʪťƸƊ²ϑ˝ϑ࣍࣎ͱϩ˵ʪɇθѣϩʪθࢋ
θɇɵϩ˵ʪ˵ɇʒʪͱ˙ϩ˵ʪɇθѣϩʪθɇʒΧЇϩͱЇϩ
from the indoorunit withyourhand.
ťЇϩ˵ʪɇθѣϩʪθͱЇϩͱ˙ϩ˵ʪʒͱͱθЇϩࢋ

15
English
CleaningandMaintenance
2 Aʪɇ˝ϩ˵ʪɇθѣϩʪθ
Aʪɇϩ˵ʪɇθѣϩʪθиϩ˵ɇЭɇʀЇЇʀʪɇʪθͱθ
soft brush. If dust is too heavy, then rinse it
with runningwater.
CAUTION
• UͱͱϩϑʀθЇɵϩ˵ʪɇθѣϩʪθиϩ˵ɇɵθЇϑ˵ͱθ
othercleaning utensil. This maydamage
ϩ˵ʪѣϩʪθࢋ
NOTE
• Unpleasant smells orunusual noises may
ʀͱʪ˙θͱϩ˵ʪѣϩʪθ˙ϩϑЭʪθцʒθϩцࢋÃ˙
ϩ˵ϑϑϩ˵ʪʀɇϑʪࡡʪθϑʪϩ˵ʪѣϩʪθиɇθ
waterwith a neutral detergentforabout
30 minutes and then rinse itthoroughly.
• øʪɇϩ˵ʪѣϩʪθɇ˝ɇϑϩɇиɇϩͱɇуϑʪ
aircontact fordrying, in the shadewith no
direct sunlight, forat least12 hours.
• Ã˙ϩ˵ʪɇθѣϩʪθʒθʪϑɇ˵Їʒɇθʪɇࡡϩɇц
produce offensive odours. Clean it again
and dryit in a well-ventilated area.
• The cleaning period maydifferdepending
on the usage and environmental
ʀͱʒϩͱϑࡡϑͱʀʪɇϩ˵ʪɇθѣϩʪθʪЭʪθц
week if thefan coil unit is in the dusty
area.

16
CleaningandMaintaining
English
CleaningandMaintenance
3 ŵʪɇϑϑʪɵ˝ϩ˵ʪɇθѣϩʪθ
CAUTION
• If the fan coil unit is used withoutthe air
ѣϩʪθࡡϩɇцɵʪʒɇɇ˝ʪʒʒЇʪϩͱʒЇϑϩࢋ
4 ŵʪϑʪϩϩ˝ϩ˵ʪɇθѣϩʪθ
˙ϩʪθʀʪɇ˝ɇʒθʪɇϑϑʪɵ˝ϩ˵ʪɇθѣϩʪθࡡ
ɵʪϑЇθʪϩͱθʪϑʪϩϩ˵ʪѣϩʪθࣗʀʪɇ˝θʪʒʪθ
asfollows:
• Fan coil unitwith thewired remote
control:
Press the FilterReset button.
• Fan coil unitwith thewireless remote
control: Pressthe SettingsɵЇϩϩͱ<or>
࣍FilterReset࣎9˝Χθʪϑϑϩ˵ʪSET
button.
NOTE
• 9ʪϑЇθʪϩͱθʪϑʪϩϩ˵ʪѣϩʪθࣗʀʪɇ˝
θʪʒʪθʪЭʪθцϩʪцͱЇʀʪɇϩ˵ʪɇθѣϩʪθ
ɇϩ˵ͱЇ˝˵ϩ˵ʪѣϩʪθθʪϑʪϩʒʀɇϩͱθ࣍ )
does not blink.

17
English
CleaningandMaintenance
Periodicalmaintenance
Maintenanceitem Interval ŵʪαЇθʪϑαЇɇѣʪʒ
technicians
Aʪɇϩ˵ʪɇθѣϩʪθࢋ At least once a month
Clean the condensate drain pan. Once ayear Required
Clean up the heat exchange. Once ayear Required
Clean the condensate drain pipe. Once every4 months Required
Replace the remote control batteries. At least once ayear

18
CleaningandMaintaining
English
CleaningandMaintenance
Troubleshooting
Referto the following chart if the fan coil unit operates abnormally. This maysave time and
unnecessaryexpense.
Problem Solution
Thefan coil unitdoes
notoperateatall.
• Check if the powerplug is properly connected.
• Checkwhetherthe auxiliarypowerswitch (MCCB, ELB) is turned on.
If the auxiliarypowerswitch (MCCB, ELB) is turned off, the fan coil
unit does notwork althoughyou pressthe (Power) button.
• If the fan coil unit is turned off bythe Timed off function, turn onthe
fan coil unit again bypressingthe (Power) button.
Thetemperaturedoes
notchange.
• Checkwhetherthe Fan mode is running. In the Fan mode, thefan
coil unit controls the settemperature automatically, and you cannot
change the set temperature.
Theairisnot coolor
warmenough.
• In the Cool mode, cool airdoes not come out if the settemperature
is higherthan the current temperature.
– Pressthe Temperature button repeatedlyuntil the set
temperature (minimum:18°C) is set to lowerthan the current
temperature.
• In the Heat mode,warm airdoes not come out if the settemperature
is lowerthan the current temperature.
(onlyforthe models forboth heating and cooling)
– Pressthe Temperature button repeatedlyuntil the set
temperature (maximum: 30°C) is set to higherthan the current
temperature.
• A˵ʪʀи˵ʪϩ˵ʪθϩ˵ʪɇθѣϩʪθϑɵͱʀʪʒиϩ˵ʒθϩࢋʒЇϑϩцѣϩʪθɇц
ʒʪʀθʪɇϑʪϩ˵ʪʀͱͱ˝ɇʒ˵ʪɇϩ˝ʪ˙ѣʀʪʀʪϑࢋAʪɇϩ˵ʪɇθѣϩʪθ
frequently.
• If the fan coil unit is installed in a place exposedto direct sunlight,
pull the curtains on the windows.
• Close thewindows and doors to maximize the cooling and heating
ʪ˙ѣʀʪʀʪϑࢋ
• Performance maydegrade ifthe fan coil unit is full of air. If this is the
case, release the air.

19
English
CleaningandMaintenance
Problem Solution
Theairisnot coolor
warmenough.
• Check the cool/hotwatersupplyline to ensure that thewaterpipe
systemvalve is open. Ifthis valve is locked, cold and hotwaterdoes
not circulate properly, and cooling and heating do not work. Open
the mainvalve.
• Aͱͱ˝ɇʒ˵ʪɇϩ˝ɇцͱϩиͱθ˙ϩ˵ʪѤͱиθɇϩʪͱ˙ʀθʀЇɇϩ˝
иɇϩʪθϑϑЇ˙ѣʀʪϩࢋAͱϩɇʀϩϩ˵ʪϑϩɇʪθࢋ
• There maybe heat loss in thewaterpipe system. Insulate all pipes to
prevent heat loss.
• Cooling and heating maynotwork if there is leakage in piping joints
due to damaged orloosevalve pipes orjoints. Contactthe installer.
Thefan speeddoes not
change. • IfAuto mode is on, the fan speed is automaticallyset and cannot be changed.
Ɵ˵ʪɇθѤͱиɵɇʒʪϑʒͱʪϑ
notmove. • Ã²ʪɇϩͱʒʪࡡϩ˵ʪɇθѤͱиɵɇʒʪϑɇθʪѣуʪʒЇΧиɇθʒϑϑЇʪθͱ˙˙ ϑϩɇϩʪࡡɵЇϩϩ˵ʪɵɇʒʪϑɇθʪѣуʪʒʒͱииɇθʒϑ˙ϩ˵ʪθʪϑͱʀͱͱɇθࢋ
Thewirelessremote
control doesnot
operate.
• Checkwhetherthe batteries are discharged. Replace the batteries
with newones.
• Make sure that nothing is blocking the remote control sensor.
• Checkwhetheranystrong lighting sources are nearthe fan coil unit.
Ɗϩθͱ˝˝˵ϩи˵ʀ˵ʀͱʪϑ˙θͱѤЇͱθʪϑʀʪϩɵЇɵϑͱθʪͱϑ˝ϑɇц
interferewith the remote control.
Thewiredremote
control doesnot
operate.
• If the indicatorat the bottom right of the remote control is lit, stop
the fan coil unit, turn offthe UPS switch, and then contact a service
centre.
Thefan coil unitis
notturned on oroff
immediatelywiththe
wiredremotecontrol.
• Check whetherthe wired remote control is set forgroup control. In
this case,the fan coil units connected to thewired remote control
areturned on oroff sequentially. This operation takes up to 32
seconds.
The Timedon/off
function doesnot
operate.
• Timed on/off function is saved if the [SET] button ([SET/CANCEL]for
previous models) is not pressed afterspecifying the time. Specifythe
time, and press the [SET] ([SET/CANCEL]) button.

20
CleaningandMaintaining
English
CleaningandMaintenance
Problem Solution
Unpleasant odours
permeatetheroom.
• If the product is used in a smellyorsmokyplace,ventilate the place.
– You mayexperience unpleasant smells if the indoortemperature
and humidityare high. Operate the product in Clean orFan mode
for1 to 2 hours.
• Aʪɇϩ˵ʪʒЇϑϩѣϩʪθ˙ϩϑʒθϩцࢋ
Thefancoilunit display
blinks continuously.
•Pressthe (Power) button to turn on the fan coil unit.
• Turn off and then turn on the auxiliarypowerswitch, and then turn
on the fan coil unit.
• If the fan coil unit displayis still blinking, contact a service centre.
Condensationformson
theproduct.
• If using Cool modewith doors open, humid airtouches the airoutlet
and condensation mayform on the panel and heater. Close the
doors.
Thefan coil unitmakes
strangenoises.
• The drain pump insidethe product maymake operation noises
immediatelyafterthe (Power) button is pressed. This noise is a
normal sound.
• The product maymake some noiseswhen detecting the position
ͱ˙ϩ˵ʪɇθѤͱиɵɇʒʪϑʪʒɇϩʪцɇ˙ϩʪθϩ˵ʪ (Power) button is
pressed. This noise is a normal sound.
• You mayheara sound of waterrunning if the product is full of air.
If this is the case, releasethe air.
• The product maymake noises ifwaterhammers occur. Contact the
installer.