Daikin ERLQ004CAV3 How to use

Installerreferenceguide
DaikinAlthermalowtemperaturesplit English
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Installerreferenceguide
DaikinAlthermalowtemperaturesplit
ERLQ004-006-008CA
EHVH04S18CA3VF
EHVH08S18CA3VF

TableofContents
Installerreferenceguide
2
ERLQ004~008CA+EHVH04+08S18CA3VF
DaikinAlthermalowtemperaturesplit
4P3662261–2014.01
TableofContents
1Aboutthedocumentation 4
1.1 Aboutthisdocument.................................................................. 4
2Generalsafetyprecautions 4
2.1 Aboutthedocumentation........................................................... 4
2.1.1 Meaningofwarningsandsymbols.............................. 4
2.2 Fortheinstaller.......................................................................... 4
2.2.1 General ....................................................................... 4
2.2.2 Installationsite ............................................................ 5
2.2.3 Refrigerant .................................................................. 5
2.2.4 Water .......................................................................... 5
2.2.5 Electrical ..................................................................... 5
3Aboutthebox 6
3.1 Outdoorunit............................................................................... 6
3.1.1 Tounpacktheoutdoorunit ......................................... 6
3.1.2 Toremovetheaccessoriesfromtheoutdoorunit....... 6
3.2 Indoorunit.................................................................................. 6
3.2.1 Tounpacktheindoorunit ........................................... 6
3.2.2 Toremovetheaccessoriesfromtheindoorunit......... 6
4Abouttheunitsandoptions 7
4.1 Identification .............................................................................. 7
4.1.1 Identificationlabel:Outdoorunit ................................. 7
4.1.2 Identificationlabel:Indoorunit .................................... 7
4.2 Possiblecombinationsofunitsandoptions............................... 8
4.2.1 Listofoptionsforoutdoorunit..................................... 8
4.2.2 Listofoptionsforindoorunit....................................... 8
4.2.3 Possiblecombinationsofindoorunitandoutdoor
unit .............................................................................. 9
5Applicationguidelines 10
5.1 Overview:Applicationguidelines............................................... 10
5.2 Settingupthespaceheatingsystem......................................... 10
5.2.1 Singleroom................................................................. 10
5.2.2 Multiplerooms–OneLWTzone ................................ 12
5.2.3 Multiplerooms–TwoLWTzones............................... 13
5.3 Settingupanauxiliaryheatsourceforspaceheating............... 14
5.4 Settingupthedomestichotwatertank ..................................... 16
5.4.1 Systemlayout–IntegratedDHWtank........................ 16
5.4.2 Selectingthevolumeanddesiredtemperaturefor
theDHWtank.............................................................. 16
5.4.3 Setupandconfiguration–DHWtank.......................... 16
5.4.4 DHWpumpforinstanthotwater................................. 17
5.4.5 DHWpumpfordisinfection ......................................... 17
5.5 Settinguptheenergymetering ................................................. 17
5.5.1 Producedheat............................................................. 17
5.5.2 Consumedenergy....................................................... 17
5.5.3 NormalkWhratepowersupply................................... 17
5.5.4 PreferentialkWhratepowersupply ............................ 18
5.6 Settingupthepowerconsumptioncontrol ................................ 18
5.6.1 Permanentpowerlimitation ........................................ 18
5.6.2 Powerlimitationactivatedbydigitalinputs ................. 18
5.6.3 Powerlimitationprocess ............................................. 19
5.7 Settingupanexternaltemperaturesensor ............................... 19
6 Preparation 20
6.1 Preparinginstallationsite .......................................................... 20
6.1.1 Installationsiterequirementsoftheoutdoorunit ........ 20
6.1.2 Additionalinstallationsiterequirementsofthe
outdoorunitincoldclimates ....................................... 20
6.1.3 Installationsiterequirementsoftheindoorunit .......... 21
6.2 Preparingrefrigerantpiping ....................................................... 21
6.2.1 Refrigerantpipingrequirements.................................. 21
6.2.2 Refrigerantpipinginsulation ....................................... 21
6.3 Preparingwaterpiping............................................................... 21
6.3.1 Watercircuitrequirements .......................................... 21
6.3.2 Formulatocalculatetheexpansionvesselpre
pressure ...................................................................... 22
6.3.3 Tocheckthewatervolume ......................................... 22
6.3.4 Changingtheprepressureoftheexpansionvessel... 23
6.3.5 Tocheckthewatervolume:Examples ....................... 23
6.4 Preparingelectricalwiring ......................................................... 24
6.4.1 Aboutpreparingelectricalwiring................................. 24
6.4.2 AboutpreferentialkWhratepowersupply .................. 24
6.4.3 Overviewofelectricalconnectionsexceptexternal
actuators ..................................................................... 24
6.4.4 Overviewofelectricalconnectionsforexternaland
internalactuators ........................................................ 24
7 Installation 25
7.1 Openingtheunits ...................................................................... 25
7.1.1 Toopentheoutdoorunit............................................. 25
7.1.2 Toopentheindoorunit ............................................... 26
7.1.3 Toopentheswitchboxcoveroftheindoorunit ......... 26
7.2 Mountingtheoutdoorunit.......................................................... 26
7.2.1 Topreparetheinstallationstructure ........................... 26
7.2.2 Topreparedrainwork................................................. 27
7.2.3 Toinstalltheoutdoorunit............................................ 28
7.2.4 Topreventtheoutdoorunitfromfallingover .............. 28
7.3 Mountingtheindoorunit ............................................................ 28
7.3.1 Toinstalltheindoorunit.............................................. 28
7.4 Connectingtherefrigerantpiping .............................................. 29
7.4.1 Pipebendingguidelines.............................................. 29
7.4.2 Toflarethepipeend ................................................... 29
7.4.3 Tobrazethepipeend ................................................. 30
7.4.4 Tohandlethestopvalve............................................. 30
7.4.5 Toopen/closethestopvalve ...................................... 30
7.4.6 Tohandlethestemcap .............................................. 30
7.4.7 Tohandletheservicecap........................................... 30
7.4.8 Toconnecttherefrigerantpipingtotheoutdoorunit .. 30
7.4.9 Toconnecttherefrigerantpipingtotheindoorunit .... 31
7.4.10 Aboutcheckingtherefrigerantpiping ......................... 31
7.4.11 Tocheckforleaks....................................................... 31
7.4.12 Toperformvacuumdrying .......................................... 31
7.4.13 Todeterminetheadditionalrefrigerantamount .......... 32
7.4.14 Tocalculatethecompleterechargeamount............... 32
7.4.15 Tochargerefrigerant .................................................. 32
7.4.16 Tofixthefluorinatedgreenhousegaseslabel ............ 32
7.5 Connectingthewaterpiping ...................................................... 33
7.5.1 Toconnectthewaterpiping........................................ 33
7.5.2 Toconnectthepressurereliefvalvetothedrain ........ 33
7.5.3 Tofillthewatercircuit ................................................. 34
7.5.4 Tofillthedomestichotwatertank .............................. 34
7.5.5 Toinsulatethewaterpiping ........................................ 34
7.5.6 Toconnecttherecirculationpiping ............................. 34
7.6 Connectingtheelectricalwiring................................................. 35
7.6.1 Aboutelectricalcompliance ........................................ 35
7.6.2 Toconnecttheelectricalwiringontheoutdoorunit.... 35
7.6.3 Toconnecttheelectricalwiringontheindoorunit...... 36
7.6.4 Toconnectthemainpowersupply ............................. 37
7.6.5 Toconnectthebackupheaterpowersupply .............. 37
7.6.6 Toconnecttheuserinterface ..................................... 38
7.6.7 Toconnecttheshutoffvalve...................................... 39
7.6.8 Toconnecttheelectricalmeters ................................. 40
7.6.9 Toconnectthedomestichotwaterpump ................... 40
7.6.10 Toconnectthealarmoutput ....................................... 40
7.6.11 ToconnectthespaceheatingON/OFFoutput ........... 40
7.6.12 Toconnectthechangeovertoexternalheatsource... 40
7.6.13 Toconnectthepowerconsumptiondigitalinputs ....... 40
7.7 Finishingtheoutdoorunitinstallation ........................................ 41
7.7.1 Tofinishtheoutdoorunitinstallation .......................... 41
7.7.2 Toclosetheoutdoorunit ............................................ 41
7.8 Finishingtheindoorunitinstallation .......................................... 41
7.8.1 Tofixtheuserinterfacecovertotheindoorunit......... 41
7.8.2 Toclosetheindoorunit............................................... 41

TableofContents
Installerreferenceguide
3
ERLQ004~008CA+EHVH04+08S18CA3VF
DaikinAlthermalowtemperaturesplit
4P3662261–2014.01
8 Configuration 41
8.1 Overview:Configuration ............................................................ 41
8.1.1 ToconnectthePCcabletotheswitchbox................. 41
8.1.2 Toaccessthemostusedcommands ......................... 42
8.1.3 Tocopythesystemsettingsfromthefirsttothe
seconduserinterface.................................................. 42
8.1.4 Tocopythelanguagesetfromthefirsttothesecond
userinterface .............................................................. 43
8.1.5 Quickwizard:Setthesystemlayoutafterfirstpower
ON............................................................................... 43
8.2 Basicconfiguration .................................................................... 43
8.2.1 Quickwizard:Language/timeanddate..................... 43
8.2.2 Quickwizard:Standard............................................... 43
8.2.3 Quickwizard:Options ................................................. 45
8.2.4 Quickwizard:Capacities(energymetering) ............... 47
8.2.5 Spaceheatingcontrol ................................................. 47
8.2.6 Domestichotwatercontrol ......................................... 49
8.2.7 Contact/helpdesknumber ........................................... 50
8.3 Advancedconfiguration/optimization......................................... 50
8.3.1 Spaceheatingoperation:advanced ........................... 50
8.3.2 Domestichotwatercontrol:advanced........................ 53
8.3.3 Heatsourcesettings ................................................... 55
8.3.4 Systemsettings........................................................... 56
8.4 Menustructure:Overview.......................................................... 59
8.5 Menustructure:Overviewinstallersettings............................... 60
9 Commissioning 61
9.1 Overview:Commissioning ......................................................... 61
9.2 Checklistbeforetestrun............................................................ 61
9.3 Airpurgefunction ...................................................................... 61
9.3.1 Toperformamanualairpurge ................................... 61
9.3.2 Toperformanautomaticairpurge.............................. 62
9.3.3 Tointerruptairpurge .................................................. 62
9.4 Toperformatestrun ................................................................. 62
9.5 Toperformanactuatortestrun ................................................. 62
9.5.1 Possibleactuatortestruns.......................................... 62
9.6 Underfloorheatingscreeddryout .............................................. 63
9.6.1 Toprogramanunderfloorheatingscreeddryout
schedule...................................................................... 63
9.6.2 Toperformanunderfloorheatingscreeddryout......... 63
9.6.3 Toreadoutthestatusofanunderfloorheating
screeddryout .............................................................. 63
9.6.4 Tointerruptanunderfloorheatingscreeddryout........ 63
10 Handovertotheuser 63
11 Maintenanceandservice 64
11.1 Maintenancesafetyprecautions................................................ 64
11.1.1 Openingtheindoorunit............................................... 64
11.2 Checklistforyearlymaintenanceoftheindoorunit................... 64
11.2.1 Todrainthedomestichotwatertank.......................... 65
11.3 Checklistforyearlymaintenanceoftheoutdoorunit................. 65
11.4 Todrainthedomestichotwatertank ........................................ 65
11.5 Todraintheflowthroughvesselandbackupheater................. 65
12 Troubleshooting 66
12.1 Generalguidelines..................................................................... 66
12.2 Solvingproblemsbasedonsymptoms...................................... 66
12.2.1 Symptom:TheunitisNOTheatingasexpected ........ 66
12.2.2 Symptom:ThecompressordoesNOTstart(space
heatingordomesticwaterheating)............................. 66
12.2.3 Symptom:Thepumpismakingnoise(cavitation) ...... 67
12.2.4 Symptom:Thepressurereliefvalveopens................. 67
12.2.5 Symptom:Thewaterpressurereliefvalveleaks ........ 67
12.2.6 Symptom:ThespaceisNOTsufficientlyheatedat
lowoutdoortemperatures ........................................... 67
12.2.7 Symptom:Thepressureatthetappingpointis
temporarilyunusualhigh............................................. 68
12.2.8 Symptom:Decorationpanelsarepushedawaydue
toaswollentank ......................................................... 68
12.2.9 Symptom:TankdisinfectionfunctionisNOT
completedcorrectly(AHerror).................................... 68
12.2.10 Symptom:Theenergymetering(producedheat)is
NOTworkingcorrectly ................................................ 68
12.3 Solvingproblemsbasedonerrorcodes .................................... 68
12.3.1 Errorcodes:Overview ................................................ 68
13 Disposal 70
13.1 Topumpdown........................................................................... 70
13.2 Tostartandstopforcedcooling ................................................ 70
14 Glossary 71
15 Technicaldata 72
15.1 Dimensionsandservicespace.................................................. 72
15.1.1 Dimensionsandservicespace:Outdoorunit ............. 72
15.1.2 Dimensionsandservicespace:Indoorunit ................ 73
15.2 Components .............................................................................. 76
15.2.1 Components:Outdoorunit.......................................... 76
15.2.2 Components:Switchbox(outdoorunit)...................... 76
15.2.3 Components:Indoorunit............................................. 77
15.2.4 Components:Switchbox(indoorunit) ........................ 78
15.3 Pipingdiagram........................................................................... 79
15.3.1 Pipingdiagram:Outdoorunit ...................................... 79
15.3.2 Pipingdiagram:Indoorunit ......................................... 80
15.4 Wiringdiagram .......................................................................... 81
15.4.1 Wiringdiagram:Outdoorunit ...................................... 81
15.4.2 Wiringdiagram:Indoorunit......................................... 84
15.5 Technicalspecifications............................................................. 90
15.5.1 Technicalspecifications:Outdoorunit ........................ 90
15.5.2 Technicalspecifications:Indoorunit ........................... 93
15.6 Operationrange......................................................................... 96
15.6.1 Operationrange:Heating............................................ 96
15.6.2 Operationrange:Domestichotwater ......................... 97
15.7 ESPcurve.................................................................................. 98
15.7.1 ESPcurve:indoorunit ................................................ 98
16 Fieldsettingstable 99

1Aboutthedocumentation
Installerreferenceguide
4
ERLQ004~008CA+EHVH04+08S18CA3VF
DaikinAlthermalowtemperaturesplit
4P3662261–2014.01
1Aboutthedocumentation
1.1 Aboutthisdocument
Targetaudience
Authorisedinstallers
Documentationset
This document is part of a documentation set. The complete set
consistsof:
Document Contains… Format
General
safety
precautions
Safetyinstructionsthat
youmustreadbefore
installing
Paper(intheboxofthe
indoorunit)
Indoorunit
installation
manual
Installationinstructions
Outdoorunit
installation
manual
Installationinstructions Paper(intheboxofthe
outdoorunit)
Installer
reference
guide
Preparationofthe
installation,technical
specifications,good
practices,referencedata,
…
Digitalfilesonhttp://
www.daikineurope.com/
supportandmanuals/
productinformation/.
Addendum
bookfor
optional
equipment
Additionalinfoabouthow
toinstalloptional
equipment
Paper(intheboxofthe
indoorunit)
Digitalfilesonhttp://
www.daikineurope.com/
supportandmanuals/
productinformation/.
Latestrevisionsofthesupplieddocumentationmaybeavailableon
theregionalDaikinwebsiteorviayourdealer.
2Generalsafetyprecautions
2.1 Aboutthedocumentation
▪ The original documentation is written in English. All other
languagesaretranslations.
▪ Theprecautionsdescribedinthisdocumentcoververyimportant
topics,followthemcarefully.
▪ All activities described in the installation manual must be
performedbyanauthorizedinstaller.
2.1.1 Meaningofwarningsandsymbols
DANGER
Indicatesasituationthatresultsindeathorseriousinjury.
DANGER:RISKOFELECTROCUTION
Indicatesasituationthatcouldresultinelectrocution.
DANGER:RISKOFBURNING
Indicatesasituationthatcouldresultinburningbecauseof
extremehotorcoldtemperatures.
WARNING
Indicates a situation that could result in death or serious
injury.
CAUTION
Indicatesasituationthatcouldresultinminorormoderate
injury.
NOTICE
Indicates a situation that could result in equipment or
propertydamage.
INFORMATION
Indicatesusefultipsoradditionalinformation.
2.2 Fortheinstaller
2.2.1 General
If you are not sure how to install or operate the unit, contact your
dealer.
NOTICE
Improper installation or attachment of equipment or
accessories could result in electric shock, shortcircuit,
leaks, fire or other damage to the equipment. Only use
accessories,optionalequipmentandsparepartsmadeor
approvedbyDaikin.
WARNING
Make sure installation, testing and applied materials
comply with applicable legislation (on top of the
instructionsdescribedintheDaikindocumentation).
CAUTION
Wear adequate personal protective equipment (protective
gloves, safety glasses,…) when installing, maintaining or
servicingthesystem.
WARNING
Tearapartandthrowawayplasticpackagingbagssothat
nobody, especially children, can play with them. Possible
risk:suffocation.
DANGER:RISKOFBURNING
▪ Do NOT touch the refrigerant piping, water piping or
internalpartsduringandimmediatelyafteroperation.It
could be too hot or too cold. Give it time to return to
normal temperature. If you must touch it, wear
protectivegloves.
▪ DoNOTtouchanyaccidentalleakingrefrigerant.
NOTICE
Provideadequatemeasurestopreventthattheunitcanbe
used as a shelter by small animals. Small animals that
makecontactwithelectricalpartscancausemalfunctions,
smokeorfire.
CAUTION
DoNOTtouchtheairinletoraluminumfinsoftheunit.
NOTICE
▪ DoNOTplaceanyobjectsorequipmentontopofthe
unit.
▪ DoNOTsit,climborstandontheunit.
NOTICE
Worksexecuted onthe outdoorunit arebest doneunder
dryweatherconditionstoavoidwateringress.

2Generalsafetyprecautions
Installerreferenceguide
5
ERLQ004~008CA+EHVH04+08S18CA3VF
DaikinAlthermalowtemperaturesplit
4P3662261–2014.01
Inaccordancewiththeapplicablelegislation,itmightbenecessary
toprovidealogbookwiththeproductcontainingatleast:information
onmaintenance,repairwork,resultsoftests,standbyperiods,…
Also, at least, following information must be provided at an
accessibleplaceattheproduct:
▪ Instructionsforshuttingdownthesystemincaseofanemergency
▪ Nameandaddressoffiredepartment,policeandhospital
▪ Name, address and day and night telephone numbers for
obtainingservice
InEurope,EN378providesthenecessaryguidanceforthislogbook.
2.2.2 Installationsite
▪ Provide sufficient space around the unit for servicing and air
circulation.
▪ Make sure the installation site withstands the unit’s weight and
vibration.
▪ Makesuretheareaiswellventilated.
▪ Makesuretheunitislevel.
DoNOTinstalltheunitinthefollowingplaces:
▪ Inpotentiallyexplosiveatmospheres.
▪ In places where there is machinery that emits electromagnetic
waves. Electromagnetic waves may disturb the control system,
andcausemalfunctionoftheequipment.
▪ In places where there is a risk of fire due to the leakage of
flammable gases (example: thinner or gasoline), carbon fibre,
ignitabledust.
▪ Inplaceswherecorrosivegas(example: sulphurousacidgas) is
produced.Corrosionofcopperpipesorsolderedpartsmaycause
therefrigeranttoleak.
2.2.3 Refrigerant
NOTICE
Make sure refrigerant piping installation complies with
applicable legislation. In Europe, EN378 is the applicable
standard.
NOTICE
Make sure the field piping and connections are not
subjectedtostress.
WARNING
During tests, NEVER pressurize the product with a
pressurehigherthanthemaximumallowablepressure(as
indicatedonthenameplateoftheunit).
WARNING
Takesufficientprecautionsincaseofrefrigerantleakage.If
refrigerant gas leaks, ventilate the area immediately.
Possiblerisks:
▪ Excessive refrigerant concentrations in a closed room
canleadtooxygendeficiency.
▪ Toxic gas may be produced if refrigerant gas comes
intocontactwithfire.
WARNING
Always recover the refrigerants. Do NOT release them
directly into the environment. Use a vacuum pump to
evacuatetheinstallation.
2.2.4 Water
NOTICE
Make sure water quality complies with EU directive
98/83EC.
2.2.5 Electrical
DANGER:RISKOFELECTROCUTION
▪ Turn OFF all power supply before removing the
switch box cover, connecting electrical wiring or
touchingelectricalparts.
▪ Disconnect the power supply for more than 1 minute,
andmeasurethevoltageattheterminalsofmaincircuit
capacitors or electrical components before servicing.
The voltage MUST be less than 50 V DC before you
cantouchelectricalcomponents.Forthelocationofthe
terminals,seethewiringdiagram.
▪ DoNOTtouchelectricalcomponentswithwethands.
▪ Do NOT leave the unit unattended when the service
coverisremoved.
WARNING
IfNOTfactoryinstalled,amainswitchorothermeansfor
disconnection, having a contact separation in all poles
providingfulldisconnection underovervoltage categoryIII
condition,shallbeinstalledinthefixedwiring.
WARNING
▪ ONLYusecopperwires.
▪ All field wiring must be performed in accordance with
thewiringdiagramsuppliedwiththeproduct.
▪ NEVER squeeze bundled cables and make sure they
do not come in contact with the piping and sharp
edges.Makesurenoexternalpressureisappliedtothe
terminalconnections.
▪ Makesuretoinstallearthwiring.DoNOTearththeunit
to a utility pipe, surge absorber, or telephone earth.
Incompleteearthmaycauseelectricalshock.
▪ Make sure to use a dedicated power circuit. NEVER
useapowersupplysharedbyanotherappliance.
▪ Make sure to install the required fuses or circuit
breakers.
▪ Makesuretoinstallanearthleakageprotector.Failure
todosomaycauseelectricshockorfire.
▪ Wheninstallingtheearthleakageprotector,makesure
it is compatible with the inverter (resistant to high
frequencyelectricnoise)toavoidunnecessaryopening
oftheearthleakageprotector.
Installpowercablesatleast1meterawayfromtelevisionsorradios
topreventinterference.Dependingontheradiowaves,adistanceof
1metermaynotbesufficient.
WARNING
▪ After finishing the electrical work, confirm that each
electrical component and terminal inside the electrical
componentsboxisconnectedsecurely.
▪ Makesureallcoversareclosedbeforestartingupthe
unit.

3Aboutthebox
Installerreferenceguide
6
ERLQ004~008CA+EHVH04+08S18CA3VF
DaikinAlthermalowtemperaturesplit
4P3662261–2014.01
3Aboutthebox
▪ At delivery, the unit must be checked for damage. Any damage
mustbereportedimmediatelytothecarrier’sclaimsagent.
▪ Bringthepackedunitasclose aspossible toits finalinstallation
positiontopreventdamageduringtransport.
3.1 Outdoorunit
3.1.1 Tounpacktheoutdoorunit
1
2
3.1.2 Toremovetheaccessoriesfromthe
outdoorunit
1Lifttheoutdoorunit.
CAUTION
Onlyhandletheoutdoorunitasfollows:
57kg
2Removetheaccessoriesatthebottomofthepackage.
a db c
1x 1x 1x 2x
aOutdoorunitinstallationmanual
bFluorinatedgreenhousegaseslabel
cMultilingualfluorinatedgreenhousegaseslabel
dUnitmountingplate
3.2 Indoorunit
3.2.1 Tounpacktheindoorunit

4Abouttheunitsandoptions
Installerreferenceguide
7
ERLQ004~008CA+EHVH04+08S18CA3VF
DaikinAlthermalowtemperaturesplit
4P3662261–2014.01
4x
3Removetheaccessories.
a
1×
b
1×
c
1×
d
1×
f
2×
g
1×
e
1×
aGeneralsafetyprecautions
bAddendumbookforoptionalequipment
cIndoorunitinstallationmanual
dOperationmanual
eUserinterfacekit:userinterface,4fixingscrews,2plugs
fShutoffvalve
gUserinterfacecover
4Reinstallthetoppanel.
4Abouttheunitsandoptions
4.1 Identification
NOTICE
Wheninstallingorservicingseveralunitsatthesametime,
make sure NOT to switch the service panels between
differentmodels.
4.1.1 Identificationlabel:Outdoorunit
Location
Modelidentification
Example:ERLQ006CAV3
Code Explanation
ER Europeansplitoutdoorpairheatpump
L Lowwatertemperature–ambientzone:−10~
−20°C
Q RefrigerantR410A
006 Capacityclass:
▪ 004=4.5kW
▪ 006=6kW
▪ 008=7.5kW
CA Series
V3 1~,230V,50Hz
4.1.2 Identificationlabel:Indoorunit
Location
3.2.2 Toremovetheaccessoriesfromthe
indoorunit
1Removethescrewsatthetopoftheunit.
2Removethetoppanel.

4Abouttheunitsandoptions
Installerreferenceguide
8
ERLQ004~008CA+EHVH04+08S18CA3VF
DaikinAlthermalowtemperaturesplit
4P3662261–2014.01
Modelidentification
Example:EHVH04S18CA3VF
Code Description
E Europeanmodel
HV Floorstandingindoorunitwithintegratedtank
H Heatingonly
04 Capacityclass:
▪ 04=4.5kW
▪ 08=7.5kW
S Integratedtankmaterial:Stainlesssteel
18 Integratedtankvolume:180l
CA Series
3V Backupheatermodel
F Specialunit
4.2 Possiblecombinationsofunits
andoptions
4.2.1 Listofoptionsforoutdoorunit
Drainpan(EKDP008CA)
Thedrainpanisrequiredtogatherthedrainfromtheoutdoorunit.
Thedrainpankitconsistsof:
▪ Drainpan
▪ Installationbrackets
Forinstallationinstructions,seetheinstallationmanualofthedrain
pan.
Drainpanheater(EKDPH008CA)
The drain pan heater is required to avoid freezingup of the drain
pan.
It is recommended to install this option in colder regions with
possiblelowambienttemperaturesorheavysnowfall.
Forinstallationinstructions,seetheinstallationmanualofthedrain
panheater.
INFORMATION
Incasethedrainpanheaterisused,thejumperJP_DPon
theservicePCBontheoutdoorunitMUSTbecut.
Aftercuttingthejumper,youMUSTresettheoutdoorunit
toactivatethisfunction.
Ubeams(EKFT008CA)
TheUbeamsareinstallationbracketsonwhichtheoutdoorunitcan
beinstalled.
It is recommended to install this option in colder regions with
possiblelowambienttemperaturesorheavysnowfall.
For installation instructions, see the installation manual of the
outdoorunit.
4.2.2 Listofoptionsforindoorunit
Userinterface(EKRUCAL1,EKRUCAL2)
The user interface is delivered as an accessory with the unit. An
additionaluserinterfaceisoptionallyavailable.
Theadditionaluserinterfacecanbeconnected:
▪ Tohaveboth:
▪ controlclosetotheindoorunit
▪ room thermostat functionality in the principal space to be
heated
▪ Tohaveaninterfacecontainingotherlanguages
The additional user interface EKRUCAL1 contains the 6 common
languages:English,German,French,Dutch,Italian,Spanish.
TheadditionaluserinterfaceEKRUCAL2containsotherlanguages:
English,Swedish,Norwegian,Czech,Turkish,Portuguese.
LanguagesontheuserinterfacecanbeuploadedbyPCsoftwareor
copiedfromanuserinterfacetotheother.
For installation instructions, see "7.6.6 To connect the user
interface"onpage38.
Roomthermostat(EKRTWA,EKRTR1)
Youcanconnectanoptionalroomthermostattotheindoorunit.This
thermostatcaneitherbewired(EKRTWA)orwireless(EKRTR1).
Forinstallationinstructions,seetheinstallationmanualoftheroom
thermostatandaddendumbookforoptionalequipment.
Remotesensorforwirelessthermostat(EKRTETS)
Youcanuseawirelessindoortemperaturesensor(EKRTETS)only
incombinationwiththewirelessthermostat(EKRTR1).
For installation intructions, see the installation manual of the room
thermostatandaddendumbookforoptionalequipment.
DigitalI/OPCB(EKRP1HB)
ThedigitalI/OPCBisrequiredtoprovidefollowingsignals:
▪ Alarmoutput
▪ SpaceheatingOn/OFFoutput
▪ Changeovertoexternalheatsource
Forinstallationinstructions,seetheinstallationmanualofthedigital
I/OPCBandaddendumbookforoptionalequipment.
DemandPCB(EKRP1AHTA)
To enable the power saving consumption control by digital inputs
youmustinstallthedemandPCB.
For installation instructions, see the installation manual of the
demandPCBandaddendumbookforoptionalequipment.
Remoteindoorsensor(KRCS011)
By default the internal user interface sensor will be used as room
temperaturesensor.
Asanoptiontheremoteindoorsensorcanbeinstalledtomeasure
theroomtemperatureonanotherlocation.
Forinstallationinstructions,seetheinstallationmanualoftheremote
indoorsensorandaddendumbookforoptionalequipment.
INFORMATION
▪ Theremoteindoorsensorcanonlybeusedincasethe
user interface is configured with room thermostat
functionality.
▪ Youcanonlyconnecteithertheremoteindoorsensoror
theremoteoutdoorsensor.

4Abouttheunitsandoptions
Installerreferenceguide
9
ERLQ004~008CA+EHVH04+08S18CA3VF
DaikinAlthermalowtemperaturesplit
4P3662261–2014.01
Remoteoutdoorsensor(EKRSCA1)
Bydefaultthesensorinsidetheoutdoorunitwillbeusedtomeasure
theoutdoortemperature.
Asanoptiontheremoteoutdoorsensorcanbeinstalledtomeasure
the outdoor temperature on another location (e.g. to avoid direct
sunlight)tohaveanimprovedsystembehaviour.
Forinstallationinstructions,seetheinstallationmanualoftheremote
outdoorsensor.
INFORMATION
You can only connect either the remote indoor sensor or
theremoteoutdoorsensor.
PCconfigurator(EKPCCAB)
The PC cable makes a connection between the switch box of the
indoor unit and a PC. It gives the possibility to upload different
language files to the user interface and indoor parameters to the
indoor unit. For the available language files, contact your local
dealer.
Thesoftwareandcorrespondingoperatinginstructionsareavailable
onDaikinExtranet.
For installation instructions, see the installation manual of the PC
cable.
4.2.3 Possiblecombinationsofindoorunitandoutdoorunit
Indoorunit Outdoorunit
ERLQ004CAV3 ERLQ006CAV3 ERLQ008CAV3
EHVH04S18CA3VF O — —
EHVH08S18CA3VF — O O

5Applicationguidelines
Installerreferenceguide
10
ERLQ004~008CA+EHVH04+08S18CA3VF
DaikinAlthermalowtemperaturesplit
4P3662261–2014.01
5Applicationguidelines
5.1 Overview:Applicationguidelines
Thepurposeoftheapplicationguidelinesistogiveaglanceofthe
possibilitiesoftheDaikinheatpumpsystem.
NOTICE
▪ Theillustrationsintheapplicationguidelinesaremeant
forreferenceonly,andareNOTtobeusedasdetailed
hydraulic diagrams. The detailed hydraulic
dimensioning and balancing are NOT shown, and are
theresponsibilityoftheinstaller.
▪ Formoreinformationabouttheconfigurationsettingsto
optimizeheatpumpoperation,see"8Configuration"on
page41.
Thischaptercontainsapplicationsguidelinesfor:
▪ Settingupthespaceheatingsystem
▪ Settingupanauxiliaryheatsourceforspaceheating
▪ Settingupthedomestichotwatertank
▪ Settinguptheenergymetering
▪ Settingupthepowerconsumption
▪ Settingupanexternaltemperaturesensor
5.2 Settingupthespaceheating
system
The Daikin heat pump system supplies leaving water to heat
emittersinoneormorerooms.
Because the system offers a wide flexibility to control the
temperature in each room, you need to answer the following
questionsfirst:
▪ HowmanyroomsareheatedbytheDaikinheatpumpsystem?
▪ Whichheatemittertypesareusedineachroomandwhatistheir
designleavingwatertemperature?
Oncethespaceheatingrequirementsareclear,Daikinrecommends
tofollowthesetupguidelinesbelow.
5.2.1 Singleroom
Underfloorheatingorradiators–Wiredroom
thermostat
Setup
B
A
a
AMainleavingwatertemperaturezone
BOnesingleroom
aUserinterfaceusedasroomthermostat
▪ Theunderfloorheatingorradiatorsaredirectlyconnectedtothe
indoorunit.
▪ Theroomtemperatureiscontrolledbytheuserinterface,whichis
usedasroomthermostat.Possibleinstallations:
▪ User interface (standard equipment) installed in the room and
usedasroomthermostat
▪ Userinterface(standardequipment)installedattheindoorunit
and used for control close to the indoor unit + user interface
(optionalequipmentEKRUCAL)installedintheroomandused
asroomthermostat
Configuration
Setting Value
Unittemperaturecontrol:
▪ #:[A.2.1.7]
▪ Code:[C07]
2(RTcontrol):Unitoperationis
decidedbasedontheambient
temperatureoftheuserinterface.
Numberofwatertemperature
zones:
▪ #:[A.2.1.8]
▪ Code:[702]
0(1LWTzone):Main
Benefits
▪Cost effective. You do NOT need an additional external room
thermostat.
▪Highest comfort and efficiency. The smart room thermostat
functionality can decrease or increase the desired leaving water
temperaturebasedontheactualroomtemperature(modulation).
Thisresultsin:
▪ Stable room temperature matching the desired temperature
(highercomfort)
▪ Less ON/OFF cycles (more quiet, higher comfort and higher
efficiency)
▪ Lowestpossibleleavingwatertemperature(higherefficiency)
▪Easy. You can easily set the desired room temperature via the
userinterface:
▪ Foryourdailyneeds,youcanusepresetvaluesandschedules.
▪ Todeviatefromyourdailyneeds,youcantemporarilyoverrule
thepresetvaluesandschedules,usetheholidaymode…
Underfloorheatingorradiators–Wirelessroom
thermostat
Setup
B
A
b
a
AMainleavingwatertemperaturezone
BOnesingleroom
aReceiverforwirelessexternalroomthermostat
bWirelessexternalroomthermostat
▪ Theunderfloorheatingorradiatorsaredirectlyconnectedtothe
indoorunit.
▪ Theroomtemperatureiscontrolledbythewirelessexternalroom
thermostat(optionalequipmentEKRTR1).

5Applicationguidelines
Installerreferenceguide
11
ERLQ004~008CA+EHVH04+08S18CA3VF
DaikinAlthermalowtemperaturesplit
4P3662261–2014.01
Configuration
Setting Value
Unittemperaturecontrol:
▪ #:[A.2.1.7]
▪ Code:[C07]
1(ExtRTcontrol):Unitoperation
isdecidedbytheexternal
thermostat.
Numberofwatertemperature
zones:
▪ #:[A.2.1.8]
▪ Code:[702]
0(1LWTzone):Main
Externalroomthermostatforthe
mainzone:
▪ #:[A.2.2.4]
▪ Code:[C05]
▪ 1 (Thermo ON/OFF): When
the used external room
thermostat or heat pump
convector can only send a
thermoON/OFFcondition.
Benefits
▪Wireless. The Daikin external room thermostat is available in a
wirelessversion.
▪Efficiency.AlthoughtheexternalroomthermostatonlysendsON/
OFFsignals,itisspecificallydesignedfortheheatpumpsystem.
Heatpumpconvectors
Setup
B
A
a
AMainleavingwatertemperaturezone
BOnesingleroom
aRemotecontrolleroftheheatpumpconvectors
▪ The heat pump convectors are directly connected to the indoor
unit.
▪ Thedesiredroom temperatureis setvia theremote controllerof
theheatpumpconvectors.
▪ Thespace heatingdemand signalis sentto onedigital inputon
theindoorunit(X2M/1andX2M/4).
▪ Thespaceoperationmodeissenttotheheatpumpconvectorsby
onedigitaloutputontheindoorunit(X2M/33andX2M/34).
INFORMATION
When using multiple heat pump convectors, make sure
each one receives the infrared signal from the remote
controlleroftheheatpumpconvectors.
Configuration
Setting Value
Unittemperaturecontrol:
▪ #:[A.2.1.7]
▪ Code:[C07]
1(ExtRTcontrol):Unitoperation
isdecidedbytheexternal
thermostat.
Numberofwatertemperature
zones:
▪ #:[A.2.1.8]
▪ Code:[702]
0(1LWTzone):Main
Setting Value
Externalroomthermostatforthe
mainzone:
▪ #:[A.2.2.4]
▪ Code:[C05]
1(ThermoON/OFF):Whenthe
usedexternalroomthermostator
heatpumpconvectorcanonly
sendathermoON/OFF
condition.
Benefits
▪Efficiency. Optimal energy efficiency because of the interlink
function.
▪Stylish.
Combination:Underfloorheating+Heatpump
convectors
▪ Spaceheatingisprovidedby:
▪ Theunderfloorheating
▪ Theheatpumpconvectors
Setup
B
A
a
M1
AMainleavingwatertemperaturezone
BOnesingleroom
aRemotecontrolleroftheheatpumpconvectors
▪ The heat pump convectors are directly connected to the indoor
unit.
▪ Thedesiredroom temperatureis setvia theremote controllerof
theheatpumpconvectors.
▪ Thespace heatingdemand signalis sentto onedigital inputon
theindoorunit(X2M/1andX2M/4)
▪ Thespaceoperationmodeissentbyonedigitaloutput(X2M/33
andX2M/34)ontheindoorunitto:
▪ Theheatpumpconvectors
▪ Theshutoffvalve
Configuration
Setting Value
Unittemperaturecontrol:
▪ #:[A.2.1.7]
▪ Code:[C07]
1(ExtRTcontrol):Unitoperation
isdecidedbytheexternal
thermostat.
Numberofwatertemperature
zones:
▪ #:[A.2.1.8]
▪ Code:[702]
0(1LWTzone):Main
Externalroomthermostatforthe
mainzone:
▪ #:[A.2.2.4]
▪ Code:[C05]
1(ThermoON/OFF):Whenthe
usedexternalroomthermostator
heatpumpconvectorcanonly
sendathermoON/OFF
condition.

5Applicationguidelines
Installerreferenceguide
12
ERLQ004~008CA+EHVH04+08S18CA3VF
DaikinAlthermalowtemperaturesplit
4P3662261–2014.01
Benefits
▪Efficiency. Under floor heating has the best performance with
AlthermaLT.
▪Comfort.Thecombinationofthetwoheatemittertypesprovides
excellentheatingcomfortoftheunderfloorheating.
5.2.2 Multiplerooms–OneLWTzone
Ifonly oneleaving watertemperaturezone isneededbecause the
design leaving water temperature of all heat emitters is the same,
youdoNOTneedamixingvalvestation(costeffective).
Example: If the heat pump system is used to heat up one floor
wherealltheroomshavethesameheatemitters.
Underfloorheatingorradiators–Thermostatic
valves
Ifyouareheatinguproomswithunderfloorheatingorradiators,a
verycommonwayistocontrolthetemperatureofthemainroomby
using a thermostat (this can either be the user interface or an
externalroomthermostat), whilethe otherrooms arecontrolled by
socalledthermostaticvalves,whichopenorclosedependingonthe
roomtemperature.
Setup
T
BC
A
a
AMainleavingwatertemperaturezone
BRoom1
CRoom2
aUserinterface
▪ Theunderfloorheatingofthemainroomisdirectlyconnectedto
theindoorunit.
▪ Theroomtemperatureofthemainroomiscontrolledbytheuser
interfaceusedasthermostat.
▪ Athermostaticvalveisinstalledbeforetheunderfloorheatingin
eachoftheotherrooms.
INFORMATION
Mind situations where the main room can be heated by
anotherheatingsource.Example:Fireplaces.
Configuration
Setting Value
Unittemperaturecontrol:
▪ #:[A.2.1.7]
▪ Code:[C07]
2(RTcontrol):Unitoperationis
decidedbasedontheambient
temperatureoftheuserinterface.
Numberofwatertemperature
zones:
▪ #:[A.2.1.8]
▪ Code:[702]
0(1LWTzone):Main
Benefits
▪Costeffective.
▪Easy. Same installation as for one room, but with thermostatic
valves.
Underfloorheatingorradiators–Multipleexternal
roomthermostats
Setup
M2M1
B C
A
aa
b
AMainleavingwatertemperaturezone
BRoom1
CRoom2
aExternalroomthermostat
bBypassvalve
▪ Foreachroom,ashutoffvalve(fieldsupplied)isinstalledtoavoid
leavingwatersupplywhenthereisnoheatingdemand.
▪ A bypass valve must be installed to make water recirculation
possiblewhenallshutoffvalvesareclosed.
▪ Theuserinterfaceconnectedtotheindoorunitdecidesthespace
operation mode. Mind that the operation mode on each room
thermostatmustbesettomatchtheindoorunit.
▪ Theroomthermostatsareconnectedtotheshutoffvalves,butdo
NOThavetobeconnectedtotheindoorunit.Theindoorunitwill
supplyleavingwaterallthetime,withthepossibilitytoprograma
leavingwaterschedule.
Configuration
Setting Value
Unittemperaturecontrol:
▪ #:[A.2.1.7]
▪ Code:[C07]
0(LWTcontrol):Unitoperationis
decidedbasedontheleaving
watertemperature.
Numberofwatertemperature
zones:
▪ #:[A.2.1.8]
▪ Code:[702]
0(1LWTzone):Main
Benefits
Comparedwithunderfloorheatingorradiatorsforoneroom:
▪Comfort. You can set the desired room temperature, including
schedules,foreachroomviatheroomthermostats.
Heatpumpconvectors
Setup
B
A
a a
C
AMainleavingwatertemperaturezone
BRoom1
CRoom2
aRemotecontrolleroftheheatpumpconvectors

5Applicationguidelines
Installerreferenceguide
13
ERLQ004~008CA+EHVH04+08S18CA3VF
DaikinAlthermalowtemperaturesplit
4P3662261–2014.01
▪ Thedesiredroom temperatureis setvia theremote controllerof
theheatpumpconvectors.
▪ Theuserinterfaceconnectedtotheindoorunitdecidesthespace
operationmode.
▪ The heating demand signals of each heat pump convector are
connectedinparalleltothedigitalinputontheindoorunit(X2M/1
and X2M/4). The indoor unit will only supply leaving water
temperaturewhenthereisanactualdemand.
INFORMATION
Toincreasecomfortandperformance,Daikinrecommends
toinstallthevalvekitoptionEKVKHPConeachheatpump
convector.
Configuration
Setting Value
Unittemperaturecontrol:
▪ #:[A.2.1.7]
▪ Code:[C07]
1(ExtRTcontrol):Unitoperation
isdecidedbytheexternal
thermostat.
Numberofwatertemperature
zones:
▪ #:[A.2.1.8]
▪ Code:[702]
0(1LWTzone):Main
Benefits
Comparedwithheatpumpconvectorsforoneroom:
▪Comfort. You can set the desired room temperature, including
schedules, for each room via the remote controller of the
heatpumpconvectors.
Combination:Underfloorheating+Heatpump
convectors
Setup
b
B C
A
a
M1
M1
AMainleavingwatertemperaturezone
BRoom1
CRoom2
aExternalroomthermostat
bRemotecontrolleroftheheatpumpconvectors
▪ For each room with heat pump convectors: The heat pump
convectorsaredirectlyconnectedtotheindoorunit.
▪ For each room with under floor heating: A shutoff valve (field
supply)isinstalledbeforetheunderfloorheating.Itpreventshot
watersupplywhentheroomhasnoheatingdemand.
▪ For each room with heat pump convectors: The desired room
temperature is set via the remote controller of the heat pump
convectors.
▪ For each room with under floor heating: The desired room
temperature is set via the external room thermostat (wired or
wireless).
▪ Theuserinterfaceconnectedtotheindoorunitdecidesthespace
operationmode. Mind thatthe operationmode oneach external
room thermostat and remote controller of the heat pump
convectorsmustbesettomatchtheindoorunit.
INFORMATION
Toincreasecomfortandperformance,Daikinrecommends
toinstallthevalvekitoptionEKVKHPConeachheatpump
convector.
Configuration
Setting Value
Unittemperaturecontrol:
▪ #:[A.2.1.7]
▪ Code:[C07]
0(LWTcontrol):Unitoperationis
decidedbasedontheleaving
watertemperature.
Numberofwatertemperature
zones:
▪ #:[A.2.1.8]
▪ Code:[702]
0(1LWTzone):Main
5.2.3 Multiplerooms–TwoLWTzones
Iftheheatemittersselectedforeachroomaredesignedfordifferent
leaving water temperatures, you can use different leaving water
temperaturezones(maximum2).
Inthisdocument:
▪ Mainzone=Zonewiththelowestdesigntemperature
▪ Additionalzone=Theotherzone
CAUTION
Whenthereismorethanoneleavingwaterzone,youmust
ALWAYSinstallamixingvalvestationinthemainzoneto
decrease(inheating)theleavingwatertemperaturewhen
theadditionalzonehasdemand.
Typicalexample:
Room(zone) Heatemitters:Design
temperature
Livingroom(mainzone) Underfloorheating:35°C
Bedrooms(additionalzone) Heatpumpconvectors:45°C
Setup
B
A
a a
C
E
D
b
c
d
AAdditionalleavingwatertemperaturezone
BRoom1
CRoom2
DMainleavingwatertemperaturezone
ERoom3

5Applicationguidelines
Installerreferenceguide
14
ERLQ004~008CA+EHVH04+08S18CA3VF
DaikinAlthermalowtemperaturesplit
4P3662261–2014.01
aRemotecontrolleroftheheatpumpconvectors
bUserinterface
cMixingvalvestation
dPressureregulatingvalve
INFORMATION
Apressureregulatingvalveshouldbeimplementedbefore
the mixing valve station. This is to guarantee the correct
water flow balance between the main leaving water
temperature zone and the additional leaving water
temperature zone in relation to the required capacity of
bothwatertemperaturezones.
▪ Forthemainzone:
▪ Amixingvalvestationisinstalledbeforetheunderfloorheating.
▪ Thepump ofthemixing valvestationis controlledby theON/
OFFsignalontheindoorunit(X2M/5andX2M/7;normalclosed
shutoffvalveoutput).
▪ Theroomtemperatureiscontrolledbytheuserinterface,which
isusedasroomthermostat.
▪ Fortheadditionalzone:
▪ Theheatpumpconvectorsaredirectlyconnectedtotheindoor
unit.
▪ Thedesiredroomtemperatureissetviatheremotecontrollerof
theheatpumpconvectorsforeachroom.
▪ Theheatingdemandsignalsofeachheatpumpconvectorare
connected in parallel to the digital input on the indoor unit
(X2M/1andX2M/4).Theindoorunitwillonlysupplythedesired
additional leaving water temperature when there is an actual
demand.
▪ Theuserinterfaceconnectedtotheindoorunitdecidesthespace
operation mode. Mind that the operation mode on each remote
controlleroftheheatpumpconvectorsmustbesettomatchthe
indoorunit.
Configuration
Setting Value
Unittemperaturecontrol:
▪ #:[A.2.1.7]
▪ Code:[C07]
2(RTcontrol):Unitoperationis
decidedbasedontheambient
temperatureoftheuserinterface.
Note:
▪ Main room = user interface
used as room thermostat
functionality
▪ Other rooms = external room
thermostatfunctionality
Numberofwatertemperature
zones:
▪ #:[A.2.1.8]
▪ Code:[702]
1(2LWTzones):Main+
additional
Incaseofheatpumpconvectors:
Externalroomthermostatforthe
additionalzone:
▪ #:[A.2.2.5]
▪ Code:[C06]
1(ThermoON/OFF):Whenthe
usedexternalroomthermostator
heatpumpconvectorcanonly
sendathermoON/OFF
condition.
Shutoffvalveoutput Settofollowthethermodemand
ofthemainzone.
Atthemixingvalvestation Setthedesiredmainleaving
watertemperature.
Benefits
▪Comfort.
▪ The smart room thermostat functionality can decrease or
increase the desired leaving water temperature based on the
actualroomtemperature(modulation).
▪ Thecombination ofthe twoheatemitter systemsprovidesthe
excellent heating comfort of the under floor heating, and the
rapid air heat up of the heat pump convectors (e.g., living
room=under floor heating and the bedroom=convector (no
continuousheating)).
▪Efficiency.
▪ Depending on the demand, the indoor unit supplies different
leavingwatertemperaturematchingthedesigntemperature of
thedifferentheatemitters.
▪ UnderfloorheatinghasthebestperformancewithAlthermaLT.
5.3 Settingupanauxiliaryheatsource
forspaceheating
▪ Spaceheatingcanbedoneby:
▪ Theindoorunit
▪ Anauxiliaryboiler(fieldsupply)connectedtothesystem
▪ Whentheroomthermostatrequestsheating,theindoorunitorthe
auxiliary boiler starts operating depending on the outdoor
temperature (status of the changeover to external heat source).
When the permission is given to the auxiliary boiler, the space
heatingbytheindoorunitisturnedOFF.
▪ Bivalent operation is only possible for space heating, NOT for
domestic hot water production. Domestic hot water is always
producedbytheDHWtankconnectedtotheindoorunit.
INFORMATION
▪ During heating operation of the heat pump, the
heatpumpoperatestoachievethedesiredtemperature
set via the user interface. When weatherdependent
operationisactive,thewatertemperatureisdetermined
automaticallydependingontheoutdoortemperature.
▪ During heating operation of the auxiliary boiler, the
auxiliary boiler operates to achieve the desired water
temperaturesetviatheauxiliaryboilercontroller.

5Applicationguidelines
Installerreferenceguide
15
ERLQ004~008CA+EHVH04+08S18CA3VF
DaikinAlthermalowtemperaturesplit
4P3662261–2014.01
Setup
▪ Integratetheauxiliaryboilerasfollows:
a b c d e f
f
g h j
FHL1 FHL2 FHL3
M
h
i
il
k
m
n
aOutdoorunit
bIndoorunit
cHeatexchanger
dBackupheater
ePump
fShutoffvalve
gMotorised3wayvalve(deliveredwithDHWtank)
hNonreturnvalve(fieldsupply)
iShutoffvalve(fieldsupply)
jCollector(fieldsupply)
kAuxiliaryboiler(fieldsupply)
lAquastatvalve(fieldsupply)
mDHWtank
nHeatexchangercoil
FHL1...3 Underfloorheating
NOTICE
▪ Makesuretheauxiliaryboileranditsintegrationinthe
systemcomplieswithapplicablelegislation.
▪ Daikin is NOT responsible for incorrect or unsafe
situationsintheauxiliaryboilersystem.
▪ Makesurethereturn watertotheheatpump doesNOTexceed
55°C.Todoso:
▪ Set the desired water temperature via the auxiliary boiler
controllertomaximum55°C.
▪ Install an aquastat valve in the return water flow of the
heatpump.
▪ Settheaquastatvalvetocloseabove55°Candtoopenbelow
55°C.
▪ Installnonreturnvalves.
▪ Makesuretoonlyhaveoneexpansionvesselinthewatercircuit.
Anexpansionvesselisalreadypremountedintheindoorunit.
▪ InstallthedigitalI/OPCB(optionEKRP1HB).
▪ ConnectX1andX2(changeovertoexternalheatsource)onthe
PCBtotheauxiliaryboilerthermostat.
▪ Tosetuptheheatemitters,see"5.2Settingupthespaceheating
system"onpage10.
Configuration
Viatheuserinterface(quickwizard):
▪ Settheuseofabivalentsystemasexternalheatsource.
▪ Setthebivalenttemperatureandhysteresis.
NOTICE
▪ Make sure the bivalent hysteresis has enough
differential to prevent frequent changeover between
indoorunitandauxiliaryboiler.
▪ Because the outdoor temperature is measured by the
outdoorunitairthermistor,installtheoutdoorunitinthe
shadowsothatitisNOTinfluencedorturnedON/OFF
bydirectsunlight.
▪ Frequent changeover may cause corrosion of the
auxiliary boiler. Contact the manufacturer of the
auxiliaryboilerformoreinformation.
Changeovertoexternalheatsourcedecidedbyanauxiliary
contact
▪ Only possible in external room thermostat control AND one
leaving water temperature zone (see "5.2 Setting up the space
heatingsystem"onpage10).
▪ Theauxiliarycontactcanbe:
▪ Anoutdoortemperaturethermostat
▪ Anelectricitytariffcontact
▪ Amanuallyoperatedcontact
▪ …
▪ Setup:Connectthefollowingfieldwiring:
L
N
H
Com
A
K2AK1A
X2M BTI
K2AK1A
Indoor/Auto/Boiler 1 2 3 4 X Y
Indoor
BTI Boilerthermostatinput
AAuxiliarycontact(normalclosed)
HHeatingdemandroomthermostat(optional)
K1A Auxiliaryrelayforactivationofindoorunit(fieldsupply)
K2A Auxiliaryrelayforactivationofboiler(fieldsupply)
Indoor Indoorunit
Auto Automatic
Boiler Boiler
NOTICE
▪ Makesuretheauxiliarycontacthasenoughdifferential
ortimedelaytopreventfrequentchangeoverbetween
indoorunitandauxiliaryboiler.
▪ If the auxiliary contact is an outdoor temperature
thermostat,installthethermostatintheshadowsothat
it is NOT influenced or turned ON/OFF by direct
sunlight.
▪ Frequent changeover may cause corrosion of the
auxiliary boiler. Contact the manufacturer of the
auxiliaryboilerformoreinformation.

5Applicationguidelines
Installerreferenceguide
16
ERLQ004~008CA+EHVH04+08S18CA3VF
DaikinAlthermalowtemperaturesplit
4P3662261–2014.01
5.4 Settingupthedomestichotwater
tank
5.4.1 Systemlayout–IntegratedDHWtank
FHL1 FHL2 FHL3
M
UI
a b c d hh if
e
g
aOutdoorunit
bIndoorunit
cHeatexchanger
dBackupheater
ePump
fMotorised3wayvalve
gDHWtank
hShutoffvalve
iCollector(fieldsupply)
FHL1...3 Underfloorheating
UI Userinterface
5.4.2 Selectingthevolumeanddesired
temperaturefortheDHWtank
People experience water as hot when its temperature is 40°C.
Therefore,theDHWconsumptionisalwaysexpressedasequivalent
hot water volume at 40°C. However, you can set the DHW tank
temperatureatahighertemperature(example:53°C),whichisthen
mixedwithcoldwater(example:15°C).
Selecting the volume and desired temperature for the DHW tank
consistsof:
1 Determining the DHW consumption (equivalent hot water
volumeat40°C).
2 DeterminingthevolumeanddesiredtemperaturefortheDHW
tank.
PossibleDHWtankvolumes
Type Possiblevolumes
IntegratedDHWtank 180l
Energysavingtips
▪ IftheDHWconsumptiondiffersfromdaytoday,youcanprogram
aweeklyschedulewithdifferentdesiredDHWtanktemperatures
foreachday.
▪ The lower the desired DHW tank temperature, the more cost
effective. By selecting a larger DHW tank, you can lower the
desiredDHWtanktemperature.
▪ Theheatpumpitselfcanproducedomestichotwaterofmaximum
55°C (50°C if outdoor temperature is low). The electrical
resistance integrated in the heat pump can higher this
temperature. However, this consumes more energy. Daikin
recommends to set the desired DHW tank temperature below
55°Ctoavoidusingtheelectricalresistance.
▪ Thehighertheoutdoortemperature,thebettertheperformanceof
theheatpump.
▪ If energy prices are the same during the day and the night,
DaikinrecommendstoheatuptheDHWtankduringtheday.
▪ Ifenergypricesarelowerduringthenight,Daikinrecommends
toheatuptheDHWtankduringthenight.
▪ Whentheheatpumpproducesdomestichotwater,itcannotheat
up a space. When you need domestic hot water and space
heatingatthesame,Daikinrecommendstoproducethedomestic
hot water during the night when there is lower space heating
demand.
DeterminingtheDHWconsumption
AnswerthefollowingquestionsandcalculatetheDHWconsumption
(equivalent hot water volume at 40°C) using the typical water
volumes:
Question Typicalwatervolume
Howmanyshowersareneeded
perday?
1shower=10min×10l/min=
100l
Howmanybathsareneededper
day?
1bath=150l
Howmuchwaterisneededatthe
kitchensinkperday?
1sink=2min×5l/min=10l
Arethereanyotherdomestichot
waterneeds?
—
Example:IftheDHWconsumptionofafamily(4persons)perdayis
asfollows:
▪ 3showers
▪ 1bath
▪ 3sinkvolumes
ThentheDHWconsumption=(3×100l)+(1×150l)+(3×10l)=480l
DeterminingthevolumeanddesiredtemperaturefortheDHW
tank
Formula Example
V1=V2+V2×(T2−40)/(40−T1) If:
▪ V2=180l
▪ T2=54°C
▪ T1=15°C
ThenV1=280l
V2=V1×(40−T1)/(T2−T1) If:
▪ V1=480l
▪ T2=54°C
▪ T1=15°C
ThenV2=307l
V1DHWconsumption(equivalenthotwatervolumeat40°C)
V2RequiredDHWtankvolumeifonlyheatedonce
T2DHWtanktemperature
T1Coldwatertemperature
5.4.3 Setupandconfiguration–DHWtank
▪ For large DHW consumptions, you can heat up the DHW tank
severaltimesduringtheday.
▪ ToheatuptheDHWtanktothedesiredDHWtanktemperature,
youcanusethefollowingenergysources:
▪ Thermodynamiccycleoftheheatpump
▪ Electricalbackupheater
▪ Formoreinformationaboutoptimizingtheenergyconsumptionfor
producingdomestichotwater,see"8Configuration"onpage41.

5Applicationguidelines
Installerreferenceguide
17
ERLQ004~008CA+EHVH04+08S18CA3VF
DaikinAlthermalowtemperaturesplit
4P3662261–2014.01
5.4.4 DHWpumpforinstanthotwater
Setup
c
f
a
b
g
h
i
▪ ByconnectingaDHWpump,instanthotwatercanbeavailableat
thetap.
▪ The DHW pump and the installation are field supply and the
responsibilityoftheinstaller.
Configuration
▪ Formoreinformation,see"8Configuration"onpage41.
▪ You can program a schedule to control the DHW pump via the
user interface. For more information, see the user reference
guide.
5.4.5 DHWpumpfordisinfection
Setup
c
a
b
d f
e g
h
i
▪ The DHW pump and the installation are field supply and the
responsibilityoftheinstaller.
▪ If applicable legislation requires disinfection of the water piping
untilthetappingpoint,youcanconnectaDHWpumpandheater
element(ifneeded)asshownabove.
Configuration
The indoor unit can control DHW pump operation. For more
information,see"8Configuration"onpage41.
5.5 Settinguptheenergymetering
▪ Viatheuserinterface,youcanreadoutthefollowingenergydata:
▪ Producedheat
▪ Consumedenergy
▪ Youcanreadouttheenergydata:
▪ Forspaceheating
▪ Fordomestichotwaterproduction
▪ Youcanreadouttheenergydata:
▪ Permonth
▪ Peryear
INFORMATION
The calculated produced heat and consumed energy are
anestimation,theaccuracycannotbeguaranteed.
5.5.1 Producedheat
▪ Theproducedheatiscalculatedinternallybasedon:
▪ Theleavingandenteringwatertemperature
▪ Theflowrate
▪ Setupandconfiguration:Noadditionalequipmentneeded.
5.5.2 Consumedenergy
You can use the following methods to determine the consumed
energy:
▪ Calculating
▪ Measuring
INFORMATION
You cannot combine calculating the consumed energy
(example: for backup heater) and measuring the
consumedenergy(example:foroutdoorunit).Ifyoudoso,
theenergydatawillbeinvalid.
▪ Theconsumedenergyiscalculatedinternallybasedon:
▪ Theactualpowerinputoftheoutdoorunit
▪ Thesetcapacityofthebackupheaterandboosterheater
▪ Thevoltage
▪ Setup and configuration: To get accurate energy data, measure
the capacity (resistance measurement) and set the capacity via
theuserinterfaceforthebackupheater(step1andstep2)
▪ Preferredmethodbecauseofhigheraccuracy.
▪ Requiresexternalpowermeters.
▪ Setupandconfiguration:
▪ Forthespecificationsofeachtypeofmeter,see"15Technical
data"onpage72.
▪ Whenusingelectricalpowermeters,setthenumberofpulses/
kWhforeachpowermeterviatheuserinterface.
INFORMATION
Whenmeasuring the electricalpower consumption,make
sure ALL power input of the system is covered by the
electricalpowermeters.
5.5.3 NormalkWhratepowersupply
Generalrule
Onepowermeterthatcoverstheentiresystemissufficient.
Setup
ConnectthepowermetertoX5M/7andX5M/8.
Powermetertype
Incaseof… Usea…powermeter
▪ Singlephaseoutdoorunit
▪ Backupheatersuppliedfroma
singlephase grid (i.e. the
backup heater model is *3V
connected to a singlephase
grid)
Singlephase

5Applicationguidelines
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18
ERLQ004~008CA+EHVH04+08S18CA3VF
DaikinAlthermalowtemperaturesplit
4P3662261–2014.01
Example
Singlephasepowermeter
b
580150
0
0
c c
f
ed g
A B C
a
AOutdoorunit
BIndoorunit
CDHWtank
aElectricalcabinet(L1/N)
bPowermeter(L1/N)
cFuse(L1/N)
dOutdoorunit(L1/N)
eIndoorunit(L1/N)
fBackupheater(L1/N)
gBoosterheater(L1/N)
Exception
▪ Youcanuseasecondpowermeterif:
▪ Thepowerrangeofonemeterisinsufficient.
▪ Theelectrical metercannot easilybeinstalled inthe electrical
cabinet.
▪ 230 V and 400 V threephase grids are combined (very
uncommon),becauseoftechnicallimitationsofpowermeters.
▪ Connectionandsetup:
▪ ConnectthesecondpowermetertoX5M/9andX5M/10.
▪ Inthe softwarethepower consumptiondata ofbothmeters is
added so you do NOT have to set which meter covers which
powerconsumption.Youonlyneedtosetthenumberofpulses
ofeachpowermeter.
▪ See "5.5.4 Preferential kWh rate power supply" on page 18 for
anexamplewithtwopowermeters.
5.5.4 PreferentialkWhratepowersupply
Generalrule
▪ Powermeter1:Measurestheoutdoorunit.
▪ Power meter 2: Measures the rest (i.e. indoor unit and backup
heater).
Setup
▪ Connectpowermeter1toX5M/7andX5M/8.
▪ Connectpowermeter2toX5M/9andX5M/10.
Powermetertypes
Singlephasepowermeter.
5.6 Settingupthepowerconsumption
control
▪ Thepowerconsumptioncontrol:
▪ Allowsyoutolimitthepowerconsumptionoftheentiresystem
(sumofoutdoorunit,indoorunitandbackupheater).
▪ Configuration:Set thepowerlimitationlevel andhow ithasto
beachievedviatheuserinterface.
▪ Thepowerlimitationlevelcanbeexpressedas:
▪ Maximumrunningcurrent(inA)
▪ Maximumpowerinput(inkW)
▪ Thepowerlimitationlevelcanbeactivated:
▪ Permanently
▪ Bydigitalinputs
5.6.1 Permanentpowerlimitation
Pi
t
DI a
b
PiPowerinput
tTime
DI Digitalinput(powerlimitationlevel)
aPowerlimitationactive
bActualpowerinput
Setupandconfiguration
▪ Noadditionalequipmentneeded.
NOTICE
Setaminimumpowerconsumptionof±3kWtoguarantee
space heating and DHW production by allowing at least
backupheaterstep1.
5.6.2 Powerlimitationactivatedbydigital
inputs
Power limitation is also useful in combination with an energy
managementsystem.
The power or current of the entire Daikin system is limited
dynamically by digital inputs (maximum four steps). Each power
limitation level is set via the user interface by limiting one of the
following:
▪ Current(inA)
▪ Powerinput(inkW)

5Applicationguidelines
Installerreferenceguide
19
ERLQ004~008CA+EHVH04+08S18CA3VF
DaikinAlthermalowtemperaturesplit
4P3662261–2014.01
Theenergymanagementsystem(fieldsupply)decidestheactivation
ofacertain powerlimitation level.Example: Tolimitthemaximum
power of the entire house (lighting, domestic appliances, space
heating…).
a
b
A B C
D
1
2
3
4
5
A8P
AOutdoorunit
BIndoorunit
CDHWtank
DEnergymanagementsystem
aPowerlimitationactivation(4digitalinputs)
bBackupheater
Pi
t
DI1
DI3
DI4 a
b
PiPowerinput
tTime
DI Digitalinputs(powerlimitationlevels)
aPowerlimitationactive
bActualpowerinput
Setup
▪ DemandPCB(optionEKRP1AHTA)needed.
▪ Maximum four digital inputs are used to activate the
correspondingpowerlimitationlevel:
▪ DI1=weakestlimitation(highestenergyconsumption)
▪ DI4=strongestlimitation(lowestenergyconsumption)
▪ Forthespecificationandtheconnectionofthedigitalinputs,see
"15.4Wiringdiagram–components:Indoorunit"onpage81.
Configuration
Setthepowerconsumptioncontrolsettingsin[A.6.3.1]viatheuser
interface(forthedescriptionofallsettings,see"8Configuration"on
page41):
▪ Selectactivationbydigitalinputs.
▪ Selectthetypeoflimitation(powerinkWorcurrentinA).
▪ Setthedesiredpowerlimitationlevelcorrespondingtoeachdigital
input.
INFORMATION
In case more than 1 digital input is closed (at the same
time),thedigitalinputpriorityisfixed:DI4priority>…>DI1.
5.6.3 Powerlimitationprocess
The outdoor unit has better efficiency than the electrical heaters.
Therefore, the electrical heaters are limited and turned OFF first.
Thesystemlimitspowerconsumptioninthefollowingorder:
1 Limitsthebackupheater.
If…haspriority Thensettheheaterpriority
viatheuserinterfaceto…
Spaceheating Backupheater.
2 TurnsOFFthebackupheater.
3 Limitstheoutdoorunit.
4 TurnsOFFtheoutdoorunit.
5.7 Settingupanexternaltemperature
sensor
Youcan connectoneexternal temperaturesensor.It canmeasure
the indoor or outdoor ambient temperature. Daikin recommends to
useanexternaltemperaturesensorinthefollowingcases:
Indoorambienttemperature
▪ In room thermostat control, the user interface is used as room
thermostat and it measures the indoor ambient temperature.
Therefore,theuserinterfacemustbeinstalledonalocation:
▪ Wheretheaveragetemperatureintheroomcanbedetected
▪ ThatisNOTexposedtodirectsunlight
▪ ThatisNOTnearaheatsource
▪ ThatisNOTaffectedbyoutsideair orairdraughtbecause of,
forexample,dooropening/closing
▪ Ifthisis NOTpossible, Daikinrecommends toconnect aremote
indoorsensor(optionKRCS011).
▪ Setup:Forinstallationinstructions,seethe installationmanualof
theremoteindoorsensor.
▪ Configuration:Selectroomsensor[A.2.2.B].
Outdoorambienttemperature
▪ Intheoutdoorunit,theoutdoorambienttemperatureismeasured.
Therefore,theoutdoorunitmustbeinstalledonalocation:
▪ Atthenorthsideofthehouseoratthesideofthehousewhere
themostheatemittersarelocated
▪ ThatisNOTexposedtodirectsunlight
▪ Ifthisis NOTpossible, Daikinrecommends toconnect aremote
outdoorsensor(optionEKRSCA1).
▪ Setup:Forinstallationinstructions,seethe installationmanualof
theremoteindoorsensor.
▪ Configuration:Selectoutdoorsensor[A.2.2.B].
▪ Duringsuspend (see"8 Configuration"on page41), theoutdoor
unit is turned down to reduce the standby energy losses. As a
result,theoutdoorambienttemperatureisNOTreadout.
▪ Ifthedesiredleavingwatertemperatureisweatherdependent,the
full time outdoor temperature measurement is important. This is
anotherreasontoinstalltheoptionaloutdoorambienttemperature
sensor.
INFORMATION
Theexternaloutdoorambientsensordata(eitheraveraged
orinstantaneous)isusedintheweatherdependentcontrol
curves.Toprotect theoutdoorunit, theinternal sensorof
theoutdoorunitisalwaysused.

6Preparation
Installerreferenceguide
20
ERLQ004~008CA+EHVH04+08S18CA3VF
DaikinAlthermalowtemperaturesplit
4P3662261–2014.01
6 Preparation
6.1 Preparinginstallationsite
DoNOTinstalltheunitinplacesoftenusedasworkplace.Incase
of construction works (e.g. grinding works) where a lot of dust is
created,theunitmustbecovered.
Choosetheinstallationlocationwithsufficientplaceforcarryingthe
unitinandoutofthesite.
6.1.1 Installationsiterequirementsofthe
outdoorunit
Mindthefollowingspacingguidelines:
≥1200
>250
>250
>250
>350
>350
(mm)(mm)
a
b
b
a
aAiroutlet
bAirinlet
See "15.1 Dimensions and service space" on page 72 for more
detailedinformationaboutspacingguidelines.
NOTICE
▪ DoNOTstacktheunitsoneachother.
▪ DoNOThangtheunitonaceiling.
When the outdoor unit is subject to windy and/or low ambient
temperatures,mindthefollowingguidelines:
Strongwinds(≥18km/h)blowingagainsttheoutdoorunit’sairoutlet
causesshortcircuit(suctionofdischargeair).Thismayresultin:
▪ deteriorationoftheoperationalcapacity;
▪ frequentfrostaccelerationinheatingoperation;
▪ disruptionofoperationduetodecreaseoflowpressure;
▪ a broken fan (if a strong wind blows continuously on the fan, it
maystartrotatingveryfast,untilitbreaks).
It is recommended to install a baffle plate when the air outlet is
exposedtowind.
Itisrecommendedtoinstalltheoutdoorunitwiththeairinletfacing
thewallandNOTdirectlyexposedtothewind.
b
a
b
c
aBaffleplate
bPrevailingwinddirection
cAiroutlet
▪ Choosealocationwherethehot/coldairdischargedfromtheunit
ortheoperationnoise,willNOTdisturbanyone.
▪ Heatexchangerfinsaresharpandinjuryispossible.Choosean
installationlocationwherethereisnoriskforinjury(especiallyin
areaswherechildrenplaying).
▪ Soundsensitiveareas(e.g.nearabedroomandthelike),sothat
theoperationnoisewillcausenotrouble.
Note: If the sound is measured under actual installation
conditions, the measured value will be higher than the sound
pressurelevelmentionedinSoundspectruminthedatabookdue
toenvironmentalnoiseandsoundreflections.
It is NOT recommended to install the unit in the following places
becauseitmayshortenthelifeoftheunit:
▪ incoastalareasorotherplaceswheretheaircontainshighlevels
ofsalt.Corrosionmayoccur,
▪ wherethevoltagefluctuatesalot,
▪ invehiclesorvessels,
▪ whereacidicoralkalinevapourispresent.
6.1.2 Additionalinstallationsiterequirements
oftheoutdoorunitincoldclimates
Protecttheoutdoorunitagainstdirectsnowfallandtakecarethatthe
outdoorunitisNEVERsnowedup.
a
b
c
c
d
aSnowcoverorshed
bPedestal
cPrevailingwinddirection
dAiroutlet
▪ Theunitshouldbeinstalledinawaythataminimumof15cmfree
spaceisassuredbelowthebottomplateoftheunitatallweather
conditions(e.g.,heavysnowfall).Itisrecommendedtoinstallthe
unitataminimumheightof30cm.See"7.2Mountingtheoutdoor
unit"onpage26formoredetails.
▪ Inheavysnowfallareasitisveryimportanttoselectaninstallation
sitewherethesnowwillNOTaffecttheunit.Iflateralsnowfallis
possible,makesurethattheheatexchangercoilisNOTaffected
by the snow. If necessary, install a snow cover or shed and a
pedestal.