System air SAVE VTC 300 User manual

SAVEVTC300
HeatRecoveryVentilationUnit
UserManual
©2015CopyrightSystemairAB
SystemairABcanacceptnoresponsibilityforpossibleerrorsincatalogues,brochuresandotherprinted
material.SystemairABreservestherighttoalteritsproductswithoutnotice.Thisalsoappliestoproducts
alreadyonorderprovidedthatsuchalterationscanbemadewithoutsubsequentialchangesbeing
necessaryinspecicationsalreadyagreed.
Allrightsreserved.
Documentinoriginallanguage207233-EN_GB
2015-11-19A004

Contents
1Disposalandrecycling...............................................................................................................1
2Warnings...................................................................................................................................1
3Introduction...............................................................................................................................2
4Conguration.............................................................................................................................3
4.1Controlpanel...................................................................................................................3
4.1.1Displaysymbols......................................................................................................4
4.2Settingthetemperature....................................................................................................4
4.3Manualsettingofairow...................................................................................................5
4.4ProgrammingtheWeekschedule......................................................................................6
4.5Manualandautomaticsummermode................................................................................6
5Maintenance..............................................................................................................................7
5.1Warnings.........................................................................................................................7
5.2ChangingOutdoor/Extractairlters...................................................................................8
5.2.1Resettingtheltertime............................................................................................8
5.3Checkingtheheatexchanger............................................................................................9
5.4Cleaningthefans.............................................................................................................9
5.5RemovingtheInspectiondoor...........................................................................................10
6Ductsystemmaintenance..........................................................................................................12
6.1Cleaningextractlouvresandsupplyairdiffusers................................................................12
6.2Checkingtheoutdoorairintake.........................................................................................12
6.3Checkingtheroofcowl(iftted).........................................................................................12
6.4Checkingandcleaningtheductsystem.............................................................................12
7Troubleshooting........................................................................................................................14
7.1Alarmlist..........................................................................................................................14
7.2Typelabel........................................................................................................................16

1Disposalandrecycling
ThisproductareapplicabletotheWEEEdirective.Whendisposingtheunit,follow
yourlocalrulesandregulations.
Thisproductpackingmaterialsarerecyclableandcanbereused.Donotdisposein
householdwaste.
2Warnings
Thefollowingadmonitionswillbepresentedindifferentsectionsofthedocument:
Danger
•Makesurethatthemainssupplytotheunitisdisconnectedbeforeperforminganymaintenanceor
electricalwork!
•Allelectricalconnectionsandmaintenanceworkmustbecarriedoutbyanauthorizedinstallerand
inaccordancewithlocalrulesandregulations.
Warning
•Thesystemshouldoperatecontinuously,andonlybestoppedformaintenance/service.
•Theinstallationoftheunitandcompleteventilationsystemmustbeperformedbyanauthorized
installerandinaccordancewithlocalrulesandregulations.
•Bewareofsharpedgesduringmountingandmaintenance.Useprotectivegloves.
•AllthoughtheMainssupplytotheunithasbeendisconnectedthereisstillriskforinjurydueto
rotatingpartsthathavenotcometoacompletestandstill.
•Makesurethatltersaremountedbeforestartingtheunit.
•Thisproductmustonlybeoperatedbyapersonwhichhassuitableknowledgeoreducationwithin
thiseldorcarriedoutwiththesupervisionofasuitablyqualiedperson.
Caution
•Donotconnecttumbledryerstotheventilationsystem.
•Ductconnections/ductendsmustbecoveredduringstorageandinstallation.
SAVEVTC300UserManual
2072331SystemairSverigeAB

3Introduction
TheSAVEVTC300isaheatrecoveryventilationunitwithabuiltincounterowplateheatexchanger.
Therearetwomodeloptions,right(R)andleft(L)model(gure1).Thedifferentmodelsarerecognizedby
thecontrolpanelwhichissituatedontherightsideoftheunitinan(R)unitandontheleftsideinan(L)unit.
Thismanualdescribesbasicinformationhowtooperateandperformmaintenanceontheunitandthe
systemitisconnectedto.
Fig.1RightandLeftmodels
Table1:Symboldescription
SymbolDescription
ASupplyair
BExhaustair
COutdoorair
DExtractair
SAVEVTC300UserManual
2072332SystemairSverigeAB

4Conguration
4.1Controlpanel
Connecttheunitelectricallytothemainswiththeenclosedplugandcheckthatitstartsupcorrectly.
Thecontrolpanelisusedtomakethenecessaryadjustments.
Anexternalcontrolpanelcanbeconnectedonthetopoftheunit.
Theillustrationbelowshowsthecontrolpanelwithashortdescription.
Fig.2Controlpanel
PositionDescriptionExplanation
1DisplayShowssymbols,menusandsettings
2SELECTIONknobMovethroughthemenulistsorchangesettingsand
valuesbyturningtheknobleftorright
3ENTERbuttonENTERmenuchoicesorsettingsbypressingthebutton
4RETURNbuttonStepRETURNinthemenulevelsandtoabortaninitiated
parameterchangeandrestoretheoriginalvalueby
pressingthebutton
SAVEVTC300UserManual
2072333SystemairSverigeAB

4.1.1Displaysymbols
SymbolDescriptionExplanation
TempIllustratesthecurrentset-pointforsupplyairtemperature
(fromcompletelyemptytolledsymbol).
TurntheSELECTIONknobtochoosetemperature.
PressENTERtosavethesetting.
AirowIllustratesthecurrentairow.Theairowcanbeset
manuallyin5steps:Off,Low,Nom,HighandAuto.
TurntheSELECTIONknobtochooseairow.
PressENTERtosavethesetting.
A.Ventilationoff.1
B.Lowventilation:Canbeusedwhenleavingthe
buildingforalongerperiod
C.Nominalventilation:Willgiverequiredairchange
undernormalconditions.
D.Maximumventilation:Toincreasetheairowif
necessary.
E.Autoventilation:Willregulateafterthepre-settingfor
thedemandcontrolsettings.
ServicePressENTERtoaccesstheservicemenu.
AlarmPressENTERtoaccessthealarmlist.
1.ThefancanbesettoOFFbyactivatingmanualfanstop.Seeservicemenudescriptionunderfunctions.
Important
Itisnotrecommendedtoactivatemanualfanstop(setfantoOFF)instandardhouseholds.Ifmanualfan
stopisactivated,theunitshouldbeprovidedwithdampersinexhaustandfreshairductstoavoidcold
draughtandriskofcondensationwhentheunithasbeenstopped.
4.2Settingthetemperature
Thesupplyairtemperatureissetmanuallyinstepsof1Kinthemainmenudisplaybychoosingthe
temperaturesymbol.
Ifanelectricalre-heaterisinstalledthetemperaturesetpointsare:
12-22°C.Forinstalledwaterre-heaterthesetpointsare:12-40°C.
SAVEVTC300UserManual
2072334SystemairSverigeAB

Ifthere-heaterisdeactivated,thetemperaturestepsare:
15-19°C.Defaultvalue:15.0°C.
Eachtemperaturestepisillustratedbyincreasingthellingofthetemperaturesymbolandthetemperature
isshowninthedisplay
Anunlledtemperaturesymbolwillactivatemanualsummermode.Seechapter4.5
4.3Manualsettingofairow
Itispossible,atanytime,tomanuallysettheairowinthemainmenudisplay.Bychoosingthefansymbol
andconrming,itispossibletoincreaseordecreasetheairowin5steps:Off,Low,Nom,HighandAuto.
Bydoingso,youoverridetheprogrammedweekschedulefortheunituntiltheendofthepresenttime
periodintheweekprogram(chapter4.4).
Warning
Itisnotrecommendedtoactivatemanualfanstop(setfantoOFF)instandardhouseholds.Ifmanual
fanstopisactivated,theunitshouldbeprovidedwithdampersinexhaustandfreshairductstoavoid
colddraughtandriskofcondensationwhentheunithasbeenstopped.
ThefancanbesettoOFFbyactivatingmanualfanstop.SeetheInstallationandServicemanual,
chapterServicemenuoverview:Manualfanstop.
SAVEVTC300UserManual
2072335SystemairSverigeAB

4.4ProgrammingtheWeekschedule
Settheweekscheduleaccordingtobelowprocedure:
1.Gototheservicemenubyusingthe
SELECTIONknob.
2.Entertheservicelevelbytypingthepassword,
default1111.UsetheSELECTIONknobforeach
digitandconrmwiththeENTERbuttonaftereach
setdigitandchoose"NO"forthesystemnotbe
locked.
Password
PasswordXXXX
LockedYES/NO
3.Goto:WeekprogramService
Weekprogram
4.ChooseWeekprogramagain.Weekprogram
Airflow
5.Setweekdayandtimeyouwanttheunitto
beinONlevel.Twoperiodsperdaycanbe
programmed.Therestofthetimetheunitwillbein
OFFlevel.
Weekprogram
Day:MON
Per1:07:0016:00
Per2:00:0000:00
6.Gobacktothepreviousdialogueframewiththe
RETURNbuttonandgodowntoAirflow.
Weekprogram
Airflow
7.Setwhichairowthefanissupposedtobe
runningintheONlevel,choosebetweenLow,
Nom,HighorAuto.
Setwhichairowthefanissupposedtoberunning
intheOFFlevel,choosebetweenOFF,Low,Nom
orHigh.
Note:
Ifanelectricalre-heaterbatteryisinstalledand
activeandtheunitisshutdownfromthecontrol
panel,forexamplebychoosingOFF .Whenthe
unitisinOFFlevelintheweekprogram,thefans
willcontinuetorunfor3minutes,topreventthe
heaterfromtriggeringtheoverheatprotection
sensor,beforetheystop.
Airflow
Onlevel:low/nom/high/auto
Offlevel:off/low/nom/high
8.StepbackwiththeRETURNbuttonuntilyou
reachthemainmenudisplay
4.5Manualandautomaticsummermode
Manualsummermodeoccursifnotemperaturestepisselected.Thetemperaturesymbolonthemain
menuisthencompletelyempty.
SAVEVTC300UserManual
2072336SystemairSverigeAB

Iftheelectricalre-heaterisactivated,itwillswitchoffduringmanualsummermode.Manualsummer
modegoesautomaticallytostep1(setpoint12°C)aftertwominutesifthesupplyairtemperatureis
+5°Corbelow.
Ifawaterheaterbatteryisinstalledandactivated,themanualsummermodegoesautomaticallytostep1
(setpoint12°C)iftheoutdoorairorsupplyairtemperatureis+5°Corbelow.
Theunitwillautomaticallyalternatebetweenwinteroperationwithheatrecoveryandsummeroperation
withoutheatrecovery.
5Maintenance
MaintenanceoftheSAVEVTC300shouldnormallybeperformed3-4timesayear.Apartfromgeneral
cleaningthefollowingshouldbeobserved:
5.1Warnings
Danger
•Makesurethatthemainssupplytotheunitisdisconnectedbeforeperforminganymaintenanceor
electricalwork!
•Allelectricalconnectionsandmaintenanceworkmustbecarriedoutbyanauthorizedinstallerand
inaccordancewithlocalrulesandregulations.
Warning
•Thesystemshouldoperatecontinuously,andonlybestoppedformaintenance/service
•Althoughthemainssupplytotheunithasbeendisconnectedthereisstillriskforinjuryduetorotating
partsthathavenotcometoacompletestandstill
•Bewareofsharpedgesduringmaintenance.Useprotectivegloves
•Makesurethatltersaremountedintheirplacebeforerunningthesystem
•Thisproductmustonlybeoperatedbyapersonwhichhassuitableknowledgeoreducationwithin
thiseldorcarriedoutwiththesupervisionofasuitablyqualiedperson.
SAVEVTC300UserManual
2072337SystemairSverigeAB

5.2ChangingOutdoor/Extractairlters
Thelterscannotbecleanedandmustbechangedasnecessary.Thisisnormallydone1–2timesper
yeardependingontheairpollutionattheinstallationsite.
Whenit’stimetochangetheltersanalarmisshowninthecontrolpaneldisplay.Whenthisoccurs
dothefollowing:
1.Changeltersasshowninbelowillustration(gure3).
2.Resettheltertimeasdescribedbelow(chapter5.2.1).Dependingontheconditionofthelter,you
mightneedtochangetheoperationtimeforthelter.
Fig.3Changingoflters
5.2.1Resettingtheltertime
1.Gototheservicemenubyusingtheselection
knob.
2.Entertheservicelevelbytypingthepassword.
UsetheSELECTIONknobforeachdigitand
conrmwiththeENTERbuttonaftereachsetdigit
andchoose"NO"forthesystemnotbelocked.
Service
—>Password
LockedYES/NO
3.Goto:Filterperiod,pressENTER.
Choose:Reset:YESwiththeSELECTION
knobandthenENTER.
Change,ifnecessary,Timetoreplace
Xmonth,tothetimeofyourchoicewiththe
SELECTIONknobandthenpressENTER.
PresstheRETURNbuttonuntilyoureachthemain
menu.
Filterperiod
Timetoreplace:6/9/12/15month
ResetNO/YES
SAVEVTC300UserManual
2072338SystemairSverigeAB

5.3Checkingtheheatexchanger
Eveniftherequiredmaintenanceiscarriedout(chapter5.2),dustwillbuildupintheexchangerblock.It
isthereforeofvitalimportancefortheupkeepofahighefciencythattheexchangerblockisremoved
fromtheunitandcleanedperiodicallyasillustratedbelow(gure4).Cleaningtheheatexchangercan
bedoneevery3years.
Fig.4Removingandcleaningtheheatexchanger
5.4Cleaningthefans
Eveniftherequiredmaintenance,suchaschangingofltersiscarriedout,dustandgreasemayslowly
buildupinsidethefans.Thiswillreducetheefciency.
Thefansmaybecleanedasillustratedinbelowprocedure.
1
Disconnecttheunitfromthemainsbypullingout
thewallplug
2
Removethecoverplates
3
Disconnectthefastcouplings
SAVEVTC300UserManual
2072339SystemairSverigeAB

4
Loosenthebracketholdingthefanandpullthefan
outcarefully
5
Cleanthefanusingaclothorasoftbrush.Do
notusewater.Whitespiritcanbeusedtoremove
obstinatesettlements.Allowtodryproperlybefore
remounting.
5.5RemovingtheInspectiondoor
Incasetheunitisinstalledinatightspaceitmightbenecessarytoremovetheinspectiondoortoperform
cleaningandmaintenance.Removethedooraccordingtobelowprocedure.
1
Disconnecttheunitfromthemainsbypullingout
thewallplug.
2
Removethecoverplateofthebypassdamper
motor.
SAVEVTC300UserManual
20723310SystemairSverigeAB

3
Disconnectthemodularplugfromthemodularjack
situatedbehindthebypassdampercoverplate.
4
Unscrewthedoorfromthehinges.
SAVEVTC300UserManual
20723311SystemairSverigeAB

6Ductsystemmaintenance
6.1Cleaningextractlouvresandsupplyairdiffusers
Thesystemsuppliesfreshairtoyourhomeandextractstheusedindoorairviatheductsystemand
diffusers/louvres.Diffusersandlouvresaremountedinceilings/wallsinbedrooms,livingroom,wetrooms,
WCetc.Removediffusersandlouvresandwashinhotsoapywaterasrequired(diffusers/louvresmust
notbeexchanged).Cleaningofdiffusers/louvrescanbedoneasnecessary.
Fig.5Diffusersandlouvres
6.2Checkingtheoutdoorairintake
Leavesandpollutioncouldpluguptheairintakegrilleandreducethecapacity.Checktheairintakegrille,
andcleanasnecessary.Itisrecommendedtodothisatleasttwiceayear.
Fig.6Intakegrill
6.3Checkingtheroofcowl(iftted)
Theroofcowl(iftted)connectedtotheexhaustairductneedstobecheckedatleasttwiceayearand
cleanedifnecessary.
6.4Checkingandcleaningtheductsystem
Dustandgreasedepositsmaybuildupintheductsystem,evenifrequiredmaintenancesuchaschanging
ofltersisbeingcarriedout.Thiswillreducetheefciencyoftheinstallation.
Theductrunsshouldthereforebecleaned/changedwhennecessary.Steelductscanbecleaned
bypullingabrushsoakedinhotsoapywaterthroughtheductviadiffuser/louvreopeningsorspecial
inspectionhatchesintheductsystem(iftted).
Itisrecommendedtodothisevery5yearsandisnormallycarriedoutbyauthorizedcompanies
specializedinthisarea.
SAVEVTC300UserManual
20723312SystemairSverigeAB

Fig.7Cleaningductsystem
SAVEVTC300UserManual
20723313SystemairSverigeAB

7Troubleshooting
7.1Alarmlist
Erroriswarnedwithtextandwarningtriangleinthedisplay.Turntheselectionknobtothewarning
triangleandpress2xconrm
AlarmExplanationResult
FanIndicateserroroneithersupplyorextract
airfan.
Thealarmisdisplayedinthecontrolpanel
Mayresultintriggeredoverheatprotection
ifanelectricalre-heaterbatteryisinstalled
andactivewhenthemalfunctionoccurs.
EMT/FrostIndicatestriggeredemergencythermostat
(incaseofinstalledelectricre-heater
battery)orfrostprotection(incaseof
installedwaterre-heaterorcoolingbattery).
Atriggeredfrostprotectionalarmresults
inthefollowing:
•Bothfansstop
•Outdoorandexhaustairdampersclose
•Watervalveopenscompletely(10V
signalgoesouttotheactuator)
Theunitwillrestartoncethewater
temperaturereaches+5Koversetfrost
protectiontemperature.
Atriggeredemergencythermostatalarm
givesanalarminthecontrolpanel.
Resetbypushingtheredbuttononthe
frontoftheheater.
BypassIndicatesmalfunctioninbypassdamperThealarmisdisplayedinthecontrolpanel.
Disconnectthemainssupplyfor10sec
toresetcontrolfunction.Powerupthe
unit,anautomaticbypassdampertest
willbeperformed.Ifthealarmoccurs
againafterapproximate2min.,contact
yourinstallationcompanyoraplaceof
purchase.
PbFailErrorinconnectionwithrelaycard
forelectricalre-heaterorre-heater
disconnected
Thealarmisdisplayedinthecontrolpanel.
Theelectricalre-heaterwillnotbe
activated.
TempMalfunctioninoneormoreofthe
temperaturesensors.
Thealarmisdisplayedinthecontrolpanel.
Checkanalogueinputstoverifywhich
sensorismalfunctioning.
FilterTimeforlterchange.Thealarmisdisplayedinthecontrolpanel.
Changelteraccordingtoinstructionsin
the“UserManual”.
LowSSIndicateslowsupplyairtemperatureThealarmisdisplayedinthecontrolpanel.
Ifwaterreheaterisconguredandfrost
protectionhavefailed,thenanextra
securityfunctionistriggeredwhensupply
airtemperatureislowerthan5°Cand
outdoorairtemperatureisbelow0°C.
SAVEVTC300UserManual
20723314SystemairSverigeAB

AlarmExplanationResult
DefrostIndicatesunacceptablepre-heater
temperature.“Stopdefrosting”levelisnot
allowed.
Thealarmisdisplayedinthecontrolpanel.
Pre-heateristriggeredormalfunctionof
pre-heaterhaveoccurred.
RHIndicatesmalfunctionofinternalrelative
humiditysensor.
Thealarmisdisplayedinthecontrolpanel.
SAVEVTC300UserManual
20723315SystemairSverigeAB

7.2Typelabel
Beforecallingyourservicerepresentative,makeanoteofthespecicationandproductionnumberfrom
thetypelabel,whichcanbefoundonthesideoftheunits,nexttotheexternalconnections.
Fig.8Typelabel
PositionDescription
1Productcode(productspecication)
2Productitemnumber
3Productionordernumber
4Serialnumber
5Productiondate(YY .MM.DD)
SAVEVTC300UserManual
20723316SystemairSverigeAB

lastpage
SystemairSverigeABreservestherighttomakechangesandimprovementstothe
contentsofthismanualwithoutpriornotice.
SystemairUAB
Linųst.101
LT–20174Ukmergė,LITHUANIA
Phone[phone]
Fax[phone]
www.systemair.com