Daikin EGSQH10S18AA9W Operating instructions

EGSQH10S18AA9W
Daikin
Brand
Daikin
Model
EGSQH10S18AA9W
Category
Heat pumps
Type
Operating instructions

Daikin EGSQH10S18AA9W can heat your living space and provide domestic hot water. Its distinct features include:

  • Space heating control: Set the desired room temperature, and the system will maintain it.
  • Domestic hot water control: Choose between reheat, scheduled, and scheduled + reheat modes to manage hot water.
  • User-friendly interface: Navigate easily with buttons and a clear display to control settings.
  • Multiple user profiles: Select between basic and detailed home pages based on your preferences.

Daikin EGSQH10S18AA9W can heat your living space and provide domestic hot water. Its distinct features include:

  • Space heating control: Set the desired room temperature, and the system will maintain it.
  • Domestic hot water control: Choose between reheat, scheduled, and scheduled + reheat modes to manage hot water.
  • User-friendly interface: Navigate easily with buttons and a clear display to control settings.
  • Multiple user profiles: Select between basic and detailed home pages based on your preferences.
Operationmanual
DaikinAlthermagroundsourceheatpump English
Operationmanual
DaikinAlthermagroundsourceheatpump
EGSQH10S18AA9W
Tableofcontents
Operationmanual
2
EGSQH10S18AA9W
DaikinAlthermagroundsourceheatpump
4P3517501C–2014.03
Tableofcontents
1 Aboutthisdocument 2
2 Aboutthesystem 2
2.1 Componentsinatypicalsystemlayout ..................................... 2
3 Operation 3
3.1 Overview:Operation.................................................................. 3
3.2 Theuserinterfaceataglance ................................................... 3
3.2.1 Buttons........................................................................ 3
3.2.2 Statusicons ................................................................ 3
3.3 Spaceheatingcontrol................................................................ 4
3.3.1 Settingthespaceoperationmode .............................. 4
3.3.2 Usingtheroomtemperaturehomepage .................... 4
3.3.3 Usingtheleavingwatertemperaturehomepages
(main+additional) ...................................................... 4
3.4 Domestichotwatercontrol ........................................................ 4
3.4.1 Reheatmode .............................................................. 4
3.4.2 Scheduledmode ......................................................... 4
3.4.3 Scheduled+reheatmode........................................... 5
3.4.4 UsingtheDHWtanktemperaturehomepage ............ 5
3.4.5 UsingtheDHWtankboostermode ............................ 5
3.5 Schedules:Example.................................................................. 5
Toselectwhichscheduleyoucurrentlywanttouse... 5
3.6 Menustructure:Overviewusersettings .................................... 6
3.7 Installersettings:Tablestobefilledinbyinstaller .................... 7
3.7.1 Quickwizard ............................................................... 7
3.7.2 Spaceheatingcontrol ................................................. 7
3.7.3 Domestichotwatercontrol[A.4] ................................. 7
3.7.4 Contact/helpdesknumber[6.3.2] ................................ 7
4 Energysavingtips 7
5 Maintenanceandservice 8
5.1 Overview:Maintenanceandservice.......................................... 8
5.2 Tofindthecontact/helpdesknumber ........................................ 8
6 Troubleshooting 8
6.1 Symptom:Youarefeelingtoocold(hot)inyourlivingroom ..... 8
6.2 Symptom:Thewateratthetapistoocold ................................ 8
6.3 Symptom:Heatpumpfailure ..................................................... 9
7 Glossary 9
1 Aboutthisdocument
Thankyouforpurchasingthisproduct.Please:
▪ Read the documentation carefully before operating the user
interfacetoensurethebestpossibleperformance.
▪ Requesttheinstallertoinformyouaboutthesettingsthatheused
to configure your system. Check if he has filled in the installer
settingstables.Ifnot,requesthimtodoso.
▪ Keepthedocumentationforfuturereference.
Targetaudience
Endusers
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
operatingyoursystem
Paper(intheboxofthe
indoorunit)
Operation
manual
Quickguideforbasic
usage
User
reference
guide
Detailedstepbystep
instructionsand
backgroundinformation
forbasicandadvanced
usage
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installer.
Availablescreens
Dependingonyoursystemlayoutandinstallerconfiguration,notall
screensinthisdocumentmaybeavailableonyouruserinterface.
Breadcrumbs
1Room temperature
Select Scroll
20.0°C >
18.0°C >
22.0°C >
24.0°C >
7.4.1.1
Comfort (heating)
Eco (heating)
Comfort (cooling)
Eco (cooling)
Breadcrumbshelpyoutolocatewhereyouareinthemenustructure
of the user interface. This document also mentions these
breadcrumbs.
Example: Go to [7.4.1.1]:  > User settings > Preset values >
Roomtemperature>Comfort(heating)
2 Aboutthesystem
Dependingonthesystemlayout,thesystemcan:
▪ Heatupaspace
▪ Producedomestichotwater(ifaDHWtankisinstalled)
2.1 Componentsinatypicalsystem
layout
d
a
b
c
e
f
gBC A
AMainzone.Example:Livingroom.
BAdditionalzone.Example:Bedroom.
CTechnicalroom.Example:Garage.
aBrineloop
bIndoorunitheatpump
cDomestichotwater(DHW)tank
dUserinterfaceattheindoorunit
3Operation
Operationmanual
3
EGSQH10S18AA9W
DaikinAlthermagroundsourceheatpump
4P3517501C–2014.03
eUserinterfaceinthelivingroom,usedasroomthermostat
fUnderfloorheating
gHeatpumpconvectorsorfancoilunits
INFORMATION
The indoor unit and the domestic hot water tank (if
installed)canbeseparatedorintegrateddependingonthe
indoorunittype.
3 Operation
3.1 Overview:Operation
You can operate the system via the user interface. This part
describeshowtousetheuserinterface:
Part Description
Ataglance ▪ Buttons
▪ Statusicons
Spaceheatingcontrol Howtocontrolspaceheating:
▪ Settingthespaceoperationmode
▪ Controllingthetemperature
Domestichotwater
control
Howtocontroldomestichotwater:
▪ Reheatmode
▪ Scheduledmode
▪ Scheduled+reheatmode
Schedules Howtoselectandprogramschedules.
Menustructure Overviewofmenustructure
Installersettingstable Overviewofinstallersettings
3.2 Theuserinterfaceataglance
3.2.1 Buttons
a
ef
b
d
c
aHOMEPAGES
▪ Switchesbetweenhomepages(whenyouareonahome
page).
▪ Goestothedefaulthomepage(whenyouareinthemenu
structure).
bMALFUNCTIONINFORMATION
Ifamalfunctionoccurs, isdisplayedonthehomepages.
Press todisplaymoreinformationaboutthemalfunction.
cON/OFF
Turns ON or OFF one of the controls (room temperature,
leavingwatertemperature,DHWtanktemperature).
dMENUSTRUCTURE/BACK
▪ Opens the menu structure (when you are on a home
page).
▪ Goes up a level (when you are navigating through the
menustructure).
▪ Goesback1step(example:whenyouareprogramminga
scheduleinthemenustructure).
e   NAVIGATING/CHANGINGSETTINGS
▪ Navigatesthecursoronthedisplay.
▪ Navigatesthroughthemenustructure.
▪ Changessettings.
▪ Selectsamode.
fOK
▪ Confirmsaselection.
▪ Entersasubmenuinthemenustructure.
▪ Switchesbetweendisplayingactualanddesiredvalues,or
betweendisplaying actualandoffset values(ifapplicable)
onthehomepages.
▪ Goes to the next step (when you are programming a
scheduleinthemenustructure).
▪ Enablesyou toactivate ordeactivate childlockifpressed
formorethan5secondsonahomepage.
▪ Enables you to activate or deactivate a function lock if
pressedformorethan5secondsinthemainmenuofthe
menustructure.
INFORMATION
Ifyoupress or whilechangingsettings,thechanges
willNOTbeapplied.
3.2.2 Statusicons
Icon Description
Spaceoperationmode=Heating.
Notavailable.
Unitisoperating.
Desiredroomtemperature=presetvalue(Comfort;
daytime).
Desiredroomtemperature=presetvalue(Eco;
nighttime).
▪ On the room temperature home page: Desired
room temperature = according to the selected
schedule.
▪ On the DHW tank temperature home page:
DHWtankmode=Scheduledmode.
DHWtankmode=Reheatmode.
DHWtankmode=Scheduled+reheatmode.
Atthenextscheduledaction,thedesiredtemperature
willincrease.
Atthenextscheduledaction,thedesiredtemperature
willNOTchange.
Atthenextscheduledaction,thedesiredtemperature
willdecrease.
Thepresetvalue(ComfortorEco)orscheduledvalue
istemporarilyoverruled.
Thesystemwillproducedomestichotwaterforthe
indicatednumberofpersons.
TheDHWtankboostermodeisactiveorreadytobe
activated.
Quietmodeisactive.
Holidaymodeisactiveorreadytobeactivated.
Childlockmodeand/orfunctionlockmodeisactive.
3Operation
Operationmanual
4
EGSQH10S18AA9W
DaikinAlthermagroundsourceheatpump
4P3517501C–2014.03
Icon Description
Anexternalheatsourceisactive.Example:Gas
burner.
Thedisinfectionmodeisactive.
Amalfunctionoccured.Press todisplaymore
informationaboutthemalfunction.
Weatherdependentmodeisactive.
Userpermissionlevel=Installer.
Defrost/oilreturnmodeisactive.
Hotstartmodeisactive.
Emergencyoperationisactive.
INFORMATION
QuietmodeisNOTapplicableforthisunit.
3.3 Spaceheatingcontrol
3.3.1 Settingthespaceoperationmode
Aboutspaceoperationmodes
Theheatpump isaheatingonlymodel. Thesystemcanheatup a
space,butNOTcooldownaspace.
3.3.2 Usingtheroomtemperaturehomepage
Typicalroomtemperaturehomepages
Dependingontheuserprofile,theuser interfacegivesyoueithera
basicoradetailedhomepage.Toswitchbetweenhomepages,go
to[7.1.3]: >Usersettings>Display>Userprofile.
Userprofile=Basic Userprofile=Detailed
15:20
Mon
Room
Actual temperature
20.0°C
15:20
Mon
Room
Actual temperature
20.0°C
Tue 17:30
Scheduled
Toreadouttheactualanddesiredroomtemperature
1Gototheroomtemperaturehomepage(Room).
Result: You can read out the actual temperature.
Actual temperature
20.0°C
2Press .
Result: You can read out the desired temperature.
Desired temperature
22.0°C
Totemporarilyoverruletheroomtemperatureschedule
1Gototheroomtemperaturehomepage(Room).
2Use or toadjustthetemperature.
Tochangethemodefromscheduledtopresetvalue
Prerequisite:Userprofile=Detailed.
1Gototheroomtemperaturehomepage(Room).
2Press or toselectapresetvalue( or ).
Result:ThemodewillreturntoScheduledaccordingtotheoverrule
period.
Tosettheoverruleperiod
1Goto[7.2]: >Usersettings>Temperaturelock.
2Selectavalueandpress :
▪ Permanent
▪ hours(2,4,6,8)
3.3.3 Usingtheleavingwatertemperature
homepages(main+additional)
INFORMATION
The leaving water is the water that is sent to the heat
emitters. The desired leaving water temperature is set by
your installer in accordance with the heat emitter type.
Example:Underfloorheatingisdesignedforlowerleaving
water temperature than radiators and heat pump
convectors and/or fan coil units. You only have to adjust
leavingwatertemperaturesettingsincaseofproblems.
For more information about the leaving water temperature, see the
userreferenceguide.
3.4 Domestichotwatercontrol
3.4.1 Reheatmode
In reheat mode ( ),the DHW tank continuously heats up to the
temperature shown on the DHW tank temperature home page
(example:50°C).
t
60°C
00:00 07:00
50°C
15°C
40°C
14:00 21:00
1
2
3
4
Tt
TtDHWtanktemperature
tTime
3.4.2 Scheduledmode
In scheduled mode ( ), the DHW tank produces hot water
corresponding to a schedule. The best time to allow the tank to
producehotwaterisatnight,because:
▪ Thespaceheatingdemandislower
▪ Electricitytariffsarelower
Example:
t
60°C
00:00 07:00
50°C
15°C
40°C
14:00 21:00
1
2
34
5
Tt
TtDHWtanktemperature
tTime
3Operation
Operationmanual
5
EGSQH10S18AA9W
DaikinAlthermagroundsourceheatpump
4P3517501C–2014.03
3.4.3 Scheduled+reheatmode
Inscheduled+reheatmode(  ),thedomestichotwatercontrolis
the same as in scheduled mode. However, when the DHW tank
temperaturedropsbelowapresetvalue(=reheattanktemperature–
hysteresis value = [60C]–[608]; example: 35°C), the DHW tank
heatsupuntilitreachesthereheatsetpoint([60C];example:45°C).
Thisensuresthataminimumamountofhotwaterisavailableatall
times.
Example:
t
Tt
60°C
00:00 07:00
50°C
45°C
15°C
14:00 21:00
35°C
1245
3
[6-0C]=
[6-0B]=
[6-0A]=
[6-0C]–[6-08]=
[6-08]
TtDHWtanktemperature
tTime
[60A] Storagecomfort
[60B] Storageeco
[60C] Reheat
[608] Reheathysteresis
3.4.4 UsingtheDHWtanktemperaturehome
page
TypicalDHWtanktemperaturehomepages
Dependingontheuserprofile,theuser interfacegivesyoueithera
basic or a detailed home page. Depending on an installer setting,
either an actual temperature or a number of people is displayed to
indicatethe domestic hot watertanktemperature. The examplesin
theillustrationsbelowareinDHWtankmode=Scheduled.
Userprofile=Basic Userprofile=Detailed
15:20
Mon
Tank
Desired temperature
60°C
15:20
Mon
Tank
Storage comfort
60°C
Tue 00:00
15:20
Mon
Tank
Desired temperature
4
15:20
Mon
Tank
Storage comfort
4
Tue 00:00
Toreadoutandadjustthedesiredreheattemperature(in
scheduledandreheatmode)
1Go to [7.4.3.3]:  > User settings > Preset values > Tank
temperature>Reheat.
Result:Youcanreadoutthedesiredreheattemperature.
2Press or toadjust.
Toreadoutandoverruletheactiveornextscheduleddesired
temperature(inscheduledmodeorscheduled+reheatmode)
1GototheDHWtanktemperaturehomepage(Tank).
Result:
or
4
isdisplayed.
2Press or tooverrule.Note:Ifthedesiredtemperatureis
weatherdependent,youcannotchangeitonthehomepage.
3.4.5 UsingtheDHWtankboostermode
ToactivatetheDHWtankboostermode(method1)
1GototheDHWtanktemperaturehomepage(Tank).
2Press formorethan5seconds.
ToactivatetheDHWtankboostermode(method2)
Prerequisite:Userprofile=Detailed
1GototheDHWtanktemperaturehomepage(Tank).
2Press toselect .
3.5 Schedules:Example
INFORMATION
Theprocedurestoprogramothercontrolsaresimilar.
Inthisexample:
▪ Roomtemperaturescheduleinheatingmode
▪ Monday=Tuesday=Wednesday=Thursday=Friday
▪ Saturday=Sunday
Toprogramtheschedule
1Go to [7.3.1.1]:  > User settings > Set schedules > Room
temp.>Setheatingschedule.
2SelectEmptyandpress .
3ProgramthescheduleforMonday.Seebelowformoredetails.
4Copy from Monday to Tuesday, Wednesday, Thursday and
Friday.Seebelowformoredetails.
5ProgramthescheduleforSaturday.
6CopyfromSaturdaytoSunday.
7Save the schedule and give it a name. See below for more
details.
ToprogramthescheduleforMonday
1Use and toselectMonday.
2Press toenterthescheduleforMonday.
3ProgramthescheduleforMonday:
▪ Use and toselectanentry.
▪ Use and tochangethevalueofanentry.
Tocopyfromonedaytoanother
1Select the day from which you want to copy and press .
Example:Monday.
2SelectCopydayandpress .
3SetthedaysyouwanttocopytoYesandpress .Example:
Tuesday=Yes,Wednesday=Yes,Thursday=YesandFriday
=Yes.
Tosavetheschedule
1Press ,selectSavescheduleandpress .
2Select User defined 1, User defined 2 or User defined 3 and
press .
3Change the name and press . (Only applicable for room
temperatureschedules).Example:MyWeekSchedule
Toselectwhichscheduleyoucurrentlywanttouse
1Goto[5]: >Selectschedules.
2Selectforwhichcontrolyouwanttouseaschedule.Example:
[5.1]Roomtemperature.
3Select for which operation mode you want to use a schedule.
Example:[5.1.1]Heating.
4Selectapredefinedoruserdefinedscheduleandpress .
3Operation
Operationmanual
6
EGSQH10S18AA9W
DaikinAlthermagroundsourceheatpump
4P3517501C–2014.03
3.6 Menustructure:Overviewusersettings
< >
Date
Time
Daylight Saving Time
Clock type
Set time/date[1]
Holiday
Holidaymode
From
Until
Holiday[2]
Use day schedule
Home
Room temperature
LWTmain
LWT additional
Tank temperature
Select schedules[5]
Sensor information
Energymetering
Error handling
User permission level
Information[6]
Actuators
Operation modes
Running hours
Version
Display
Temperaturelock
Set schedules
Preset values
User settings
[7]
Allowed operation mode
Unit of measurement
Holiday
Holidaymode
From
Until
Holiday[2]
Away
Consumed elec.
Producedenergy
Energy metering[6.2]
Error history
Contact/helpdesknumber
Error information[6.3]
User interface
Indoorunit
Outdoor unit
Version[6.8]
Contrast
BacklitLCDtime
User profile
Available home pages
Display[7.1]
Room temperature
LWTmain
Tank temperature
Quiet level
Preset values[7.4]
Room temp.
LWTmain
LWT additional
Tank temp.
Set schedules[7.3]
Quiet mode
DHW pump
[3]
Operation mode[4]
Quiet mode
4Energysavingtips
Operationmanual
7
EGSQH10S18AA9W
DaikinAlthermagroundsourceheatpump
4P3517501C–2014.03
INFORMATION
Energy metering functionality is NOT applicable and/or
NOT valid for this unit if it is calculated by the unit. If
optionalexternalmetersareused,energymeteringdisplay
isvalid.
INFORMATION
QuietmodeandquietlevelisNOTapplicableforthisunit.
INFORMATION
▪ IndoorunitrelatestoindoorunitPCBwhichcontrolsthe
hydraulicpartofthegroundsourceheatpump.
▪ OutdoorunitrelatestooutdoorunitPCBwhichcontrols
the compressor module of the ground source heat
pump.
3.7 Installersettings:Tablestobe
filledinbyinstaller
3.7.1 Quickwizard
Setting Default Fillin…
PreferentialkWhratepowersupply[A.2.1.6]
PreferentialkWhrate 0(No)
Spaceheatingsettings[A.2.1]
Unitcontrolmethod 0(LWT
control)
Userinterfacelocation 1(Inroom)
NumberofLWTzones 0(1LWT
zone)
Pumpoperationmode 1(Sample)
Domestichotwatersettings[A.2.2]
DHWpump 0(No)
Thermostats[A.2.2]
Contacttypemain 1(Thermo
ON/OFF)
Contacttypeadd. 1(Thermo
ON/OFF)
Externalsensor 0(No)
DigitalI/OPCB[A.2.2.6]
Ext.backupheatsrc 0(No)
Alarmoutput 0(Normally
open)
DemandPCB[A.2.2.7]
DemandPCB 0(No)
Energymetering[A.2.2]
ExternalkWhmeter1 0(No)
ExternalkWhmeter2 0(No)
Capacities(energymetering)[A.2.3]
BUH:step1 3kW
BUH:step2 3kW
Autoemergency[A.5.1.2]
Autoemergencyoperation Manual
INFORMATION
Auto emergency: By default, backup heater operation
during emergency operation is NOT allowed. This means
that when a heat pump failure occurs the user needs to
manually confirm that backup heater may operate during
emergency.Ifthe house is unattended forlongerperiods,
we recommend that setting [A.5.1.2] Auto emergency
operationshallbesettoAutomatic.
3.7.2 Spaceheatingcontrol
Setting Default Fillin…
Leavingwatertemperature:Mainzone[A.3.1.1]
LWTsetpointmode 1(Weather
dep.)
Setweatherdependentheating –20/15/60/25
Leavingwatertemperature:Additionalzone[A.3.1.2]
LWTsetpointmode 1(Weather
dep.)
Setweatherdependentheating 25/60/15/−20
Leavingwatertemperature:DeltaTemitter[A.3.1.3]
Heating 8°C
Leavingwatertemperature:Modulation[A.3.1.1.5]
ModulatedLWT 0(No)
Leavingwatertemperature:Emittertype[A.3.1.1.7]
Emittertype 0(Quick)
3.7.3 Domestichotwatercontrol[A.4]
Setting Default Fillin…
Type 1(Reheat+
sched.)
Setpointreadouttype 0
(Temperature)
Maximumsetpoint 60°C
3.7.4 Contact/helpdesknumber[6.3.2]
Setting Default Fillin…
Contact/helpdesknumber —
4 Energysavingtips
Tipsaboutroomtemperature
▪ MakesurethedesiredroomtemperatureisNEVERtoohigh,but
ALWAYSaccordingtoyouractualneeds.Eachsaveddegreecan
saveupto6%ofheatingcosts.
▪ Do NOT increase the desired room temperature to speed up
spaceheating.ThespacewillNOTheatupfaster.
▪ When your system layout contains slow heat emitters (example:
under floor heating), avoid large fluctuation of the desired room
temperatureanddoNOTlettheroomtemperaturedroptoolow.It
willtakemoretimeandenergytoheatuptheroomagain.
▪ Use a weekly schedule for your normal space heating needs. If
necessary,youcaneasilydeviatefromtheschedule:
▪ For shorter periods: You can overrule the scheduled room
temperature. Example: When you have a party, or when you
areleavingforacoupleofhours.
▪ For longer periods: You can use the holiday mode. Example:
When you stay at home during your holiday, or when you go
awayduringyourholiday.
5Maintenanceandservice
Operationmanual
8
EGSQH10S18AA9W
DaikinAlthermagroundsourceheatpump
4P3517501C–2014.03
TipsaboutDHWtanktemperature
▪ Makesurethenumber(available hotwaterforxpersons) onthe
DHWtanktemperaturehomepageisNOThigherthanyouractual
needs.
▪ Useaweeklyscheduleforyournormaldomestichotwaterneeds
(onlyinscheduledmode).
▪ Program to heat up the DHW tank to a preset value (Storage
comfort = higher DHW tank temperature) during the night,
becausethenspaceheatingdemandislowerandelectrictariffs
maybelower.
▪ If heating up the DHW tank once at night is not sufficient,
programtoadditionallyheatuptheDHWtanktoapresetvalue
(Storageeco=lowerDHWtanktemperature)duringtheday.
▪ Make sure the desired DHW tank temperature is NOT too high.
Example:Afterinstallation,lowertheDHWtanktemperaturedaily
by1°Candcheckifyoustillhaveenoughhotwater.
▪ Program to turn ON the domestic hot water pump only during
periodsofthedaywheninstanthotwaterisnecessary.Example:
Inthemorningandevening.
5 Maintenanceandservice
5.1 Overview:Maintenanceand
service
Theinstallerhastoperformayearlymaintenance.Youcanfindthe
contact/helpdesknumberviatheuserinterface.
Asenduser,youhaveto:
▪ Keeptheuserinterfacecleanwithasoftdampcloth.DoNOTuse
anydetergents.
▪ Regularlycheckifthewaterpressureindicatedonthemanometer
isabove1bar.
Refrigerant
Thisproductcontainsfluorinatedgreenhousegasescoveredbythe
KyotoProtocol.DoNOTventgasesintotheatmosphere.
Refrigeranttype:R410A
Globalwarmingpotentialvalue:1975
Periodical inspections for refrigerant leaks may be required
dependingontheapplicablelegislation.Pleasecontactyourinstaller
formoreinformation.
5.2 Tofindthecontact/helpdesk
number
Goto[6.3.2]: >Information>Errorhandling>Contact/helpdesk
number.
6 Troubleshooting
6.1 Symptom:Youarefeelingtoocold
(hot)inyourlivingroom
Possiblecause Correctiveaction
Thedesiredroomtemperatureis
toolow(high).
Increase(decrease)thedesired
roomtemperature.
Iftheproblemrecursdaily,do
oneofthefollowing:
▪ Increase (decrease) the room
temperaturepresetvalue.
▪ Adjust the room temperature
schedule.
Thedesiredroomtemperature
cannotbereached.
Increasethedesiredleaving
watertemperatureinaccordance
withtheheatemittertype.
6.2 Symptom:Thewateratthetapis
toocold
Possiblecause Correctiveaction
Youranoutofdomestichot
waterbecauseofunusualhigh
consumption.
Ifyouimmediatelyneeddomestic
hotwater,activatetheDHWtank
boostermode.However,this
consumesextraenergy.
Ifyoucanwait,overrule
(increase)theactiveornext
scheduleddesiredtemperature
sothatmorehotwaterwillbe
producedexceptionally.
Iftheproblemsrecursdaily,do
oneofthefollowing:
▪ Increase the DHW tank
temperaturepresetvalue.
▪ Adjust the DHW tank
temperature schedule.
Example: Program to
additionally heat up the
DHW tank to a preset value
(Storage eco = lower tank
temperature)duringtheday.
ThedesiredDHWtank
temperatureistoolow.
7Glossary
Operationmanual
9
EGSQH10S18AA9W
DaikinAlthermagroundsourceheatpump
4P3517501C–2014.03
6.3 Symptom:Heatpumpfailure
Whentheheatpumpfailstooperatethebackupheatercanserveas
an emergency heater and either automatically or nonautomatically
take over the heat load. When auto emergency is activated and a
heatpumpfailureoccurs, the backup heater will automatically take
over the heat load. When a heat pump failure occurs and auto
emergency is not activated, the domestic hot water and space
heatingoperationswillstopandneedtoberecoveredmanually.The
userinterfacewillthenaskyoutoconfirmwhetherthebackupheater
cantakeovertheheatloadornot.Whentheheatpumpfails, will
appearontheuserinterface.
Possiblecause Correctiveaction
Heatpumpisdamaged. ▪ Press  to view a description
oftheproblem.
▪ Press again.
▪ Select  to allow the backup
heater to take over the heat
load.
▪ Call your local dealer to get
theheatpumpfixed.
INFORMATION
When the backup heater takes over the heat load,
electricityconsumptionwillbeconsiderablyhigher.
7 Glossary
DHW=Domestichotwater
Hot water used, in any type of building, for domestic
purposes.
LWT=Leavingwatertemperature
Watertemperatureatthewateroutletoftheheatpump.
4P351750-1 C 0000000-
4P3517501C2014.03
Copyright2013Daikin
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Daikin EGSQH10S18AA9W Operating instructions

EGSQH10S18AA9W
Daikin
Brand
Daikin
Model
EGSQH10S18AA9W
Category
Heat pumps
Type
Operating instructions

Daikin EGSQH10S18AA9W can heat your living space and provide domestic hot water. Its distinct features include:

  • Space heating control: Set the desired room temperature, and the system will maintain it.
  • Domestic hot water control: Choose between reheat, scheduled, and scheduled + reheat modes to manage hot water.
  • User-friendly interface: Navigate easily with buttons and a clear display to control settings.
  • Multiple user profiles: Select between basic and detailed home pages based on your preferences.
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