1
Contents
Page
1. Denitions ...................................................... 1
1.1 Meaningofwarningsandsymbols ................ 1
1.2 Meaningofusedterms .................................. 1
1.3 SafetyPrecautions ........................................ 2
2. Introduction .................................................... 6
2.1 Generalinformation ....................................... 6
2.2 Systemlayout ................................................ 6
3. Beforeoperation............................................. 6
4. Userinterface ................................................. 7
5. Operationrange ............................................. 7
6. Operationprocedure ...................................... 7
6.1 Cooling,heating,fanonly,automatic
operationanddryoperation .......................... 7
6.2 Programdryoperation .................................. 8
6.3 Adjustingtheairowdirection....................... 9
6.4 Settingthemasteruserinterface ................ 10
6.5 Precautionsforgroupcontrolsystemor
twouserinterfacecontrolsystem ................ 11
7. Energysavingandoptimumoperation ......... 11
8. Maintenance ................................................ 12
8.1 Maintenanceafteralongstopperiod
(e.g.,atthebeginningoftheseason) .......... 12
8.2 Maintenancebeforealongstopperiod
(e.g.,attheendoftheseason) ................... 12
9. Symptomsthatarenotairconditioner
troubles ........................................................ 12
9.1 Thesystemdoesnotoperate ...................... 12
9.2 Fanoperationispossible,butcooling/
heatingdonotwork ..................................... 12
9.3 Thefanstrengthdoesnotcorrespond
tothesetting ................................................ 12
9.4 Thefandirectiondoesnotcorrespond
tothesetting ................................................ 12
9.5 Whitemistcomesoutofaunit .................... 13
9.6 Theuserinterfacedisplayreads
“U4”or“U5”andstops,butthenrestarts
afterafewminutes ...................................... 13
9.7 Noiseofairconditioners .............................. 13
9.8 Dustcomesoutoftheunit .......................... 13
9.9 Theunitscangiveoffodours ...................... 13
9.10Theoutdoorunitfandoesnotspin .............. 13
9.11Thedisplayshows“ ” ............................ 13
9.12Thecompressorintheoutdoorunitdoes
notstopafterashortheatingoperation ...... 13
9.13Theinsideofanoutdoorunitiswarm
evenwhentheunithasstopped .................. 13
9.14Doesnotcoolverywell ............................... 13
9.15Hotaircanbefeltwhentheindoorunit
isstopped .................................................... 14
10.Troubleshooting ............................................ 14
11.After-salesserviceandwarranty .................. 15
11.1Warrantyperiod ........................................... 15
11.2After-salesservice ....................................... 15
11.3Shorteningof“maintenancecycle”
and“replacementcycle”needstobe
consideredinfollowingsituations ................ 16
11.4Malfunctioncodes ....................................... 17
1. Denitions
1.1 Meaning of warnings and symbols
Warningsinthismanualareclassiedaccording
totheirseverityandprobabilityofoccurrence.
DANGER
Indicatesanimminentlyhazardoussituation
which,ifnotavoided,willresultindeathor
seriousinjury.
WARNING
Indicatesapotentiallyhazardoussituation
which,ifnotavoided,couldresultindeath
orseriousinjury.
CAUTION
Indicatesapotentiallyhazardoussituation
which,ifnotavoided,mayresultinminoror
moderateinjury.Itmayalsobeusedtoalert
againstunsafepractices.
NOTICE
Indicatessituationsthatmayresultin
equipmentorproperty-damageaccidents
only.
INFORMATION
Thissymbolidentiesusefultipsor
additionalinformation.
Sometypesofdangerarerepresentedby
specialsymbols:
Electric current.
Danger of burning and scalding.
1.2 Meaning of used terms
Installation manual:
Instructionmanualspeciedforacertainproduct
orapplication,explaininghowtoinstall,congure
andmaintainit.
Operation manual:
Instructionmanualspeciedforacertainproduct
orapplication,explaininghowtooperateit.
Operation manual
01_EN_3P344160-11V.indd 1 08-Oct-20 9:22:53 AM