SystemAir SAVE VSR 300, SAVE VSR 500, SAVE VSR 300 DE Installation And Service

SAVEVSR300/500

0

0

0

InstallationandService

Documentinoriginallanguage

208115-EN_GB

14-02-2013A002

Systemairisnotliableorboundbywarrantyifthese
instructionsarenotadheredtoduringinstallationorservice.

©2013CopyrightSystemairAB

SystemairABcanacceptnoresponsibilityforpossibleerrorsincatalogues,
brochuresandotherprintedmaterial.SystemairABreservestherighttoalterits
productswithoutnotice.Thisalsoappliestoproductsalreadyonorderprovided
thatsuchalterationscanbemadewithoutsubsequentialchangesbeingnecessary
inspecicationsalreadyagreed.

AlltrademarksinthismaterialarepropertyofSystemairAB.

Allrightsreserved.

Contents

1DeclarationofConformity...........................................................................................................1

2Warnings...................................................................................................................................2

3Aboutthisdocument..................................................................................................................2

4Productinformation....................................................................................................................2

4.1General...........................................................................................................................2

4.2Transportandstorage.......................................................................................................3

4.3T echnicalData.................................................................................................................3

5Installation.................................................................................................................................4

5.1Unpacking........................................................................................................................4

5.2Where/howtoinstall.........................................................................................................5

5.3Installationprocedure.......................................................................................................5

5.4Condensationdrainage.....................................................................................................6

5.5Electricalconnections.......................................................................................................6

5.6Externalconnectionsontheunit........................................................................................8

6Commissioning..........................................................................................................................9

6.1Controlpanel...................................................................................................................9

6.2Startupwizard.................................................................................................................11

6.3Systemcurves.................................................................................................................14

6.4Fanspeedsettings...........................................................................................................20

6.5Defrostlevelsettings........................................................................................................22

6.6ProgrammingtheWeekschedule......................................................................................23

6.7Ext/Forcerun...................................................................................................................24

6.8Extrafunctions.................................................................................................................24

7Beforestartingthesystem..........................................................................................................24

8Operation..................................................................................................................................25

8.1Settingtemperature..........................................................................................................25

8.2Manualsettingoffanspeed..............................................................................................25

8.3Manualandautomaticsummermode................................................................................25

8.4Coolrecovery...................................................................................................................26

8.5Servicemenuoverview.....................................................................................................26

9Service......................................................................................................................................34

9.1Warnings.........................................................................................................................34

9.2Internalcomponents.........................................................................................................35

9.3Componentdescriptions...................................................................................................36

9.4Troubleshooting...............................................................................................................38

9.5Replacingrotordrivebelt..................................................................................................40

9.6Typelabel........................................................................................................................41

1DeclarationofConformity

Manufacturer

SystemairAB

Industrivägen3

SE–73930SkinnskattebergSWEDEN

Ofce:[phone]Fax:[phone]

www.systemair.com

herebyconrmsthatthefollowingproduct:

Heatrecoveryventilationunit:SAVEVSR300/500

(Thedeclarationappliesonlytoproductintheconditionitwasdeliveredinandinstalledinthefacilityinaccordancewiththeincluded
installationinstructions.Theinsurancedoesnotcovercomponentsthatareaddedoractionscarriedoutsubsequentlyontheproduct)

Complywithallapplicablerequirementsinthefollowingdirectives:

•MachineryDirective2006/42/EC

•LowVoltageDirective2006/95/EC

•EMCDirective2004/108/EC

Thefollowingharmonizedstandardsareappliedinapplicableparts:

ENISO12100-1Safetyofmachinery–Basicconcepts,generalprinciplesfordesign–Part1:

Basicterminology,methodology

ENISO12100-2Safetyofmachinery–Basicconcepts,generalprinciplesfordesign–Part2:

Technicalprinciples

ENISO14121-1:2007Safetyofmachinery–Riskassessment–Part1:Principles

EN13857

Safetyofmachinery–Safetydistancestopreventhazardzonesbeingreached
byupperorlowerlimbs

EN60204-1

Safetyofmachinery–Electricalequipmentofmachines–Part1:General
Requirements

EN60335-1

Householdandsimilarelectricalappliances–SafetyPart1:Generalrequirements

EN60335-2-40

Safetyofhouseholdandsimilarelectricalappliances–Part2-40:Particular
requirementsforelectricalheatpumps,air-conditionersanddehumidiers

EN60529

Degreesofprotectionprovidedbyenclosures(IPCode)

EN50366:2003Electricdomesticproductsandsimilareverydayarticles

Electromagneticelds-Methodsforevaluationandmeasurements

EN50106

Safetyofhouseholdandsimilarappliances–Particularrulesforroutinetests
referringtoappliancesunderthescopeofEN60335-1andEN60967

EN60034-5

Rotatingelectricalmachines–Part5:Degreesofprotectionprovidedbythe
integraldesignofrotatingelectricalmachines(IPcode)

EN61000-6-2

Electromagneticcompatibility(EMC)–Part6-2:Genericstandards–Immunity
forindustrialenvironments

EN61000-6-3

Electromagneticcompatibility(EMC)–Part6-3:Genericstandards–Emission
standardsforresidential,commercialandlight-industrialenvironments

Thecompletetechnicaldocumentationisavailable.

Skinnskatteberg,14-02-2013

MatsSándor

TechnicalDirector

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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.

3Aboutthisdocument

ThisinstallationmanualconcernsairhandlingunittypeSAVEVSR300/500manufacturedbySystemair
AB.
Themanualconsistsofbasicinformationandrecommendationsconcerningthedesign,installation,
start-upandoperation,toensureaproperfail-freeoperationoftheunit.

Thekeytoproperandsafeoperatingoftheunitistoreadthismanualthoroughly,usetheunitaccordingto
givenguidelinesandadheretoallsafetyrequirements.

4Productinformation

4.1General

TheSA VEVSR300/500isaheatrecoveryventilationunit,withabuiltinrotaryheatexchanger.TheSAVE
VSR300/500issuitableforhouseswithupto240/360m

2

heatedlivingarea.

TheSAVEVSR300/500supplieslteredoutdoorairtoresidentialareasandextractairfrombathroom,
kitchenandwetrooms.

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4.2Transportandstorage

TheSAVEVSR300/500shouldbestoredandtransportedinsuchawaythatitisprotectedagainst
physicaldamagethatcanharmpanelsetc.Itshouldbecoveredsodust,rainandsnowcannotenterand
damagetheunitanditscomponents.

Theapplianceisdeliveredinonepiececontainingallnecessarycomponents,wrappedinplasticona
palletforeasytransportation.

4.3TechnicalData

4.3.1DimensionsandWeight

10 40

F1G1

G2

J 2

H1

H2

K2

K1

L2

L1

F2

J 1

11 20

Fig.1Dimensionsandweight

Measuresinmmandweightinkg.

ModelF1F2

G1G2

H1H2J1J2K1K2L1L2Weight

VSR300

5785984615052311883071 1216017828113661

VSR500

62864855159527617834512320720827617972

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4.3.2Ductconnections

Fig.2Ductconnections

Symbol

Description

Symbol

Description

SupplyairOutdoorair

ExhaustairExtractair

4.3.3Powerconsumptionandfusesize

SAVEVSR300/500comewith1670Winstalledre-heaterbattery.

Model

VSR300VSR500

Re-heater1670W

Fans166W338W

Totalpowerconsumption1836W2008W

Fuse10A13A

5Installation

Thissectiondescribeshowtoinstalltheunitcorrectly.T oensureaproperandfail-freeoperation,itis
importantthattheunitisinstalledaccordingtotheseinstructions.

5.1Unpacking

Verifythatallorderedequipmentaredeliveredbeforestartingtheinstallation.Anydiscrepanciesfromthe
orderedequipmentmustbereportedtothesupplierofSystemairproducts.

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5.2Where/howtoinstall

TheSAVEVSR300/500shouldpreferablybeinstalledinaseparateroom(e.g.storeroom,laundryroom
orsimilar.),butcanalsobeinstalledintheloftspace.

Whenchoosingtheinstallationposition,considerationmustbetakenthattheunitrequiresregular
maintenance.Flooringboardsmustbemounteduptoandundertheunit.Lightandmainssupplyshould
beinstalled.Leavefreespaceforremovingofinspectiondoorsandfortakingoutmaincomponents
insidetheunit.

TheSAVEVSR300/500aresuppliedwithapproximately1mcableandplugfor230V,singlephase
earthedconnection.

Recommendedinstallationlocationfortheoutdoorairintakeisthenorthernoreasternsideofthebuilding
andwithadistancetoopeningsfordischargeofstaleventilationair,kitchenventilator,centralvacuum
system,waistwaterdrainageandotherpollutionsourceslikeexhaustfromtrafcetc.Staledischarge
airshouldideallybeledviaaroofunittotheoutsideandwithagooddistancetoanyoutdoorairintake,
windowsetc.

Note:

Ifthepassagetotheinstallationlocationisnarrow,removethesidecoversandthesidecoversupport
brackets.

5.3Installationprocedure

1.Makesurethatthesurfaceisatandhorizontalandthatitsupportstheweightoftheunit.Performthe
installationinaccordancewithlocalrulesandregulations.

2.Fittheenclosedselfadhesivevibrationdampersontheunit.

MountaccordingtotheenclosedVibrationDamperQuickGuide.

3.Lifttheunitinplace

Warning

Bewareofsharpedgesduringmountingandmaintenance.Useprotectivegloves.

Considertheunitweightwhenmounting!

4.Connecttheunittotheductsystem.Makesurethatallnecessaryaccessoriesareusedtocreatea
functionalventilationsolution.

Warning

Theinstallationoftheunitandcompleteventilationsystemmustbeperformedbyanauthorized
installerandinaccordancewithlocalrulesandregulations.

5.Connecttheunitelectricallytothemainswiththeenclosedplugandcheckthatitstartsupcorrectly .

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5.4Condensationdrainage

Ingeneralnocondensationdrainageisneededforrotationalheatexchangersatdryconditions.However,
ifalotofhumidairispresentintheresidence,acondensationdrainagemightbeneeded.Drainage
connectionisavailableasanaccessoryandcanbeorderedseperate.

Note:

Thedrainageconnectionispluggedinthebottomoftheunitatdelivery.T ousethedrainage:elevatethe
unitfromtheoor ,removetherubbersealandandconnectthewaterhose.Connectthewaterhosetothe
sewer.Thewatercannotbeledstraighttothesewerwithoutawatertrap.

5.5Electricalconnections

TheSA VEVSR300/500iswiredinternallyfromfactory.
Theelectricalconnectionboxcanbefoundbeneaththetopcover.Theprintcardcaneasilybetaken
outfromtheunit.

1

1.Printcard

5.5.1Printcardlayout

TheSAVEVSR300/500isequippedwithbuilt-inregulationandinternalwiring.Seebelowillustrationfor
anoverviewoftheenclosedcomponents.

Thegureshowstheprintcard.Seewiringdiagramformoreinformation.

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4

10

8 3

5

7

6

9

1

2

Fig.3Printcard

PositionDescription

1Mainprintcard

2

Printcardforelectricalre-heater

3

Connectiontoexternalcontrolpanel(connectedtounitcasing)

4Mainssupplyconnectionbetweenmainprintcardandelectricalre-heaterprintcard

5

TerminalsforAI1–5(tempsensors)andmotorcontrol

6

Terminalsforexternalconnections

7

Terminalsformainssupplyconnections

8

Terminalsfordigitalinputs(DI1–7)

9

Terminalsforinternalcontrolpanel.

10

Terminalsforregulatedpowersupplytoelectricalre-heater

5.5.2Externalconnectionsontheprintcard

Connectionterminalsforexternalequipmentcanbefoundonthemainprintcardinsidetheunit.

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Fig.4Externalconnectionsontheprintcard

PositionDescriptionRemark

1

Outdoor/exhaustairdamper

Normallyopencontact,230V1~,max1A

2

Outdoor/exhaustairdamperReference

3

Outdoor/exhaustairdamper

Normallyclosedcontact,230V1~,max1A

4

Connectiontoexternalalarm

Normallyopencontact,24V ,max1A

5

ConnectiontoexternalalarmReference

6

Connectiontoexternalalarm

Normallyclosedcontact,24V ,max1A

7

GNDReference

8

Watercoolercontrolsignal(AO1)0–10VDC

9

GNDReference

10

Waterheatercontrolsignal(AO2)0–10VDC

11

GNDReference

12

Damper(AO3)

Notused

5.6Externalconnectionsontheunit

Twooftheconnectionsonthemainprintcardarewiredtoplugsontheunitcasing:

•connectiontoanexternalcontrolpanelthroughamodularconnector.
Maximumcablelength:50m.
Cabletype:Flat4–conductorCECPhonecable.

•connectiontoDI3withpossibilitytocongurethefanspeedsindividuallythroughapotentialfree
on/offswitch

1

2 3

4

1.ConnectiontoDI3throughanon/offswitch

2.Connectiontocontrolpanel

3.Cableglands

4.230Vcable

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6Commissioning

6.1Controlpanel

Thecontrolpanelisusedtomakethenecessaryadjustments.

Anexternalcontrolpanelcanbeconnectedtotheunit.Thecontrolpanelisdeliveredwitha12mcable.
Cablesinotherlengthscanbeobtainedfromthesupplier .

Theillustrationbelowshowsthecontrolpanelwithashortdescription.

1

2

3

4

Fig.5Controlpanel

PositionDescriptionExplanation

1Display

Showssymbols,menusandsettings

2

SELECTIONknob

Movethroughthemenulistsorchangesettingsand
valuesbyturningtheknobleftorright

3

CONFIRMbuttonConrmmenuchoicesorsettingsbypressingthebutton

4

BACKbuttonStepbackinthemenulevelsandtoabortaninitiated

parameterchangeandrestoretheoriginalvalueby
pressingthebutton

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6.1.1Displaysymbols

Symbol

DescriptionExplanation

TempIllustratesthecurrentsettemperature.Thetemperature

setpointissetin6steps(fromcompletelyemptytolled
symbol).

TurntheSELECTIONknobtochoosetemperature.

PressCONFIRMtosavethesetting.

Fanspeed

Illustratesthecurrentfanspeed.Thefanspeedcanbe
setmanuallyin4steps:Off,Low,NomandHigh.

TurntheSELECTIONknobtochoosefanspeed.

PressCONFIRMtosavethesetting.

A.Ventilationoff.

1

B.Lowventilation:Canbeusedwhenleavingthe

buildingforalongerperiod

C.Nominalventilation:Willgiverequiredairchange

undernormalconditions.

D.Maximumventilation:T oincreasetheairowif

necessary.

ServicePressCONFIRMtoaccesstheservicemenu.

Alarm

PressCONFIRMtoaccessthealarmlist.

1.ThefancanbesettoOFFbyactivatingMANfanstop.Seeservicemenudescriptionunderfunctions.

Note:

ItisnotrecommendedtoactivateMANfanstop(setfantoOFF)instandardhouseholds.
IfMANfanstopisactivated,theunitshouldbeprovidedwithdampersinexhaustandfreshairductsto
avoidcolddraughtandriskofcondensationwhentheunithasbeenstopped.

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6.2Startupwizard

TheStartupWizardisastep-by-stepcongurationtoolthatstartsautomaticallywhentheSAVEVSR
300/500isstartedforthersttimeorwhen:

•afactoryresetisperformed

•anewprintcardisinstalled(sparepart)
Inthiscasetheunittypemustbeentered(SA VEVSR300/500)

6.2.1Procedure

1.TurntheSELECTIONknobtochooselanguage
andpressCONFIRM

Languages
LanguageENGLISH

2.Chooseunittype,thischoiceisonlypresentifa
newprintcardisinstalled(sparepart)

Type
SAVEVSR300/500

3.Setdateandtime

Time/DateYY/MM/DD

Date:12/09/12

Time:10:00
Weekday:Sat

4.Selectheater:None/Electrical/Water

Heater

Heater:None/Electrical/Water

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5.Setthesystemcurve.

Note:

Beforesettingthesystemcurve,seechapter6.3
fordetails.

Thisfunctionisimplementedintheunitto
compensatetheowvaluesfordifferentsystem
pressures.

SupplyFan(SF):T otalvaluerange:1–20.ForG3
typelter:11–20,forF7typelter:1–10.
VSR300defaultcurve:3
VSR500defaultcurve:3

ExtractFan(EF):V aluerange:1–10
VSR300defaultcurve:3
VSR500defaultcurve:3

Note:

ThefactoryinstalledltersareoflterqualityF7for
thesupplyairandG3fortheextractairlter.
Airltersareaccessoriesandcanbeobtained
fromtheinstallerorwholesaler.

Theltertypeislabelledonthetopofthelter.

Systemcurve

EF:1–10
SF:1–20

6.Hereitispossibletochangethe
Nominal/High/LowairowontheExtract
andSupplyairfans.

Whensettingsaredone,pressCONFIRM.

VSR300:

Airflowl/sEFSF

Nom7070
Max8888
Min4242

VSR500:

Airflowl/sEFSF

Nom105105
Max146146
Min6363

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6.2.2PerformFactoryreset

Howtoperformafactoryresetifnecessary:

1.Entertheservicemenubyselectingtheservice
symbolinthedisplayandpressCONFIRM.

2.Gotopasswordandenterthepassword,
default111 1

UsetheSELECTIONknobforeachdigitand
conrmwiththeCONFIRMbuttonaftereachset
digitandchooseNOforthesystemnotbelocked.

Password

PasswordXXXX
LockedYES/NO

3.GotoFunctionsandselectFactoryReset

Functions

Factoryreset

4.TurntheSELECTIONknobsoYESisshown
andpressCONFIRM.

Factoryreset

Reallyreset?YES/NO

5.ACCEPTEDisshowninthedisplaywindow

ACCEPTED

6.TheStartupWizardstartsafterapproximately
10seconds

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6.3Systemcurves

Asystemrequiresdifferentpressuresatdifferentairows,whichcanberepresentedbyasystemcurve.
Theintersectionbetweenthesystemlineandthefancurve,istheunit'sworkingpoint.Itisshowingthe
airowthesystemisgoingtohave.Everychangeinthepressureoftheventilationsystem,willgive
risetoanewsystemcurve.

TheK-factorisaconstantthatisthesamethroughoutoneandthesamesystemcurve.IftheK-factorand
thesystempressureisknown,theairowcanbecalculated.Iftherealpressuredropinthesystemis
largerorsmallerthancalculated,theworkingpointandtheairowwillbedifferentthanexpected.

6.3.1VSR300Supplyair,F7typelter

0

100

200

300

400

500

600

700

0 20 40 60 80 100 120

Pa

l/s

10V

6,9V

4,9V

2,8V

1

2

3

4

5

6

7

8

9

10

Fig.6Supplyairsystemcurves,F7typelter

SystemcurveK-factor[l/s]

117,12

29,82

36,92

45,33

5

4,18

63,31

7

2,59

82,02

91,54

101,12

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6.3.2VSR300Supplyair,G3typelter

0

100

200

300

400

500

600

700

0 20 40 60 80 100 120

Pa

l/s

10V

6,9V

4,9V

2,8V

11

12

13

14

15

16

17

18

19

20

Fig.7Supplyairsystemcurves,G3typelter

SystemcurveK-factor[l/s]

1118,33

129,58

136,98

145,36

154,24

163,34

172,60

182,04

191,56

201,14

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6.3.3VSR300Extractair,G3typelter

0

100

200

300

400

500

600

700

0 20 40 60 80 100 120

Pa

l/s

10 V

6,9 V

4,9 V

2,8 V

1

2

3

4

5

6

7

8

9

10

Fig.8Extractairsystemcurves,G3typelter

SystemcurveK-factor[l/s]

115,73

29,56

36,94

45,32

5

4,23

63,40

7

2,71

82,10

91,58

101,14

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6.3.4VSR500Supplyair,F7typelter

0

100

200

300

400

500

600

700

0 20 40 60 80 100 120 1 40 160 180 200

Pa

l/s

10 V

6,9 V

5,1 V

2,9 V

1

2

3

4

5

6

7

8

9

10

Fig.9Supplyairsystemcurves,F7typelter

SystemcurveK-factor[l/s]

122,18

213,00

39,45

47,37

5

5,91

64,76

7

3,80

82,97

92,26

101,63

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6.3.5VSR500Supplyair,G3typelter

0

100

200

300

400

500

600

700

0 20 40 60 80 100 120 140 160 180 20 0

Pa

l/s

10V

6,9V

5,1V

2,9V

11

12

13

14

15

16

17

18

19

20

Fig.10Supplyairsystemcurves,G3typelter

SystemcurveK-factor[l/s]

1124,85

1214,21

1310,05

147,64

156,03

164,83

173,85

183,02

192,29

201,64

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6.3.6VSR500Extractair,G3typelter

0

100

200

300

400

500

600

700

0 50 100 150 200 250

Pa

l/s

10 V

6,9 V

5,1 V

2,9 V

1

2

3

4

5

6

7

8

910

Fig.11Extractairsystemcurves,G3typelter

SystemcurveK-factor[l/s]

125,86

215,01

310,74

48,08

5

6,38

65,13

7

4,12

83,22

92,42

101,74

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6.4Fanspeedsettings

Thefanspeedmaybeadjustedinfoursteps;off,low,nominalandhigh.Thesesettingscontroltheoutput
signalstothesupply-andextractfans.Thefactorysettingoneachspeedstepsare:

VSR300VSR500

•Off:0l/s

•Min:42l/s

•Nom:70l/s(atapproximately90Pa)

•Max:88l/s

•Off:0l/s

•Min:63l/s

•Nom:105l/s(atapproximately90Pa)

•Max:146l/s

Theselevelsarepossibletochangeintheservicelevel.

Note:

ThefancanbesettoOFFbyactivatingMANfanstop.Seeservicemenudescriptionunderfunctions.

ItishowevernotrecommendedtoactivateMANfanstop(setfantoOFF)instandardhouseholds.
IfMANfanstopisactivated,theunitshouldbeprovidedwithdampersinexhaustandfreshairductsto
avoidcolddraughtandriskofcondensationwhentheunithasbeenstopped.

Seebelowairowdiagramtogetanideaofhowtheairowcorrespondstoeachvoltageoutput.This
showsafanperformancediagramdisplayingperformancecurvesforsupplyairandextractair.

Fig.12Fanperformancediagram

1.Fanperformancecurve,supplyair

2.Fanperformancecurve,extractair

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6.4.1Settingthefanspeed

1.Gototheservicemenubyusingthe
SELECTIONknob

2.Entertheservicelevelbytypingthepassword,
default1111.UsetheSELECTIONknobforeach
digitandconrmwiththeCONFIRMbuttonafter
eachsetdigitandchoose"NO"forthesystemnot
belocked.

Password

PasswordXXXX
LockedYES/NO

3.Goto:Functions

Choose:Airflow

Functions

—>Airflow

4.Setthefanspeed.All3speedcategoriescanbe
setbetweensystemdenedMinandMaxvalues.

VSR300:

Airflowl/sEFSF

Nom7070
Max8888
Min4242

VSR500:

Airflowl/sEFSF

Nom105105
Max146146
Min6363

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6.5Defrostlevelsettings

Theunitisequippedwithanautomatictwo-stepsdefrostfunctionthatisactivatedwhenthereisriskof
icingintheareaaroundtheheatexchanger .Thesetting0-5(table2)determineshowaggressivethe
defrostingwillbe.Defaultfactorysettingismode0.

Note:

Theheatexchangershouldwithstandlowoutdoortemperatures,butinthosecaseswhereicingcanoccur
pleasebeawareofthatthetwostepdefrostsettingwillgenerateanunderpressureinthebuilding.
Usingareplace,beawarethatthereisapossibleriskofsmokebeingextractedintothelivingareas
duetounderpressureifdefrostingisactivated.

Table1:Defrostlevels

Defrost
mode

Relativehumidityindoors

1

Description

0

Defrostingisturnedoff

1

Minimum<20%Dryareas,suchaswarehousebuildingswithfewpeopleor

industrialbuildingsthatdon’tusewaterintheirproduction
process.

2

Low30%-40%Ofcebuildings

3

Medium40%-60%

Apartmentsorhouseswithnormalhumidity

2

4

High60%-80%

Apartmentsorhouseswithhighhumidity

5

Extremelyhigh>80%

Buildingswithveryhighhumiditylevel.

1.Relativehumidityintheextractairatcoldoutdoortemperatures.

2.Innewlyconstructedhousesitmightbenecessarywithahigherdefrostlevelduringtherstwinterperiod.

6.5.1Settingthedefrostlevel

1.Gototheservicemenubyusingthe
SELECTIONknob.

2.Entertheservicelevelbytypingthepassword,
default1111.UsetheSELECTIONknobforeach
digitandconrmwiththeCONFIRMbuttonafter
eachsetdigitandchoose"NO"forthesystemnot
belocked.

Password

PasswordXXXX
LockedYES/NO

3.Goto:Functions

Choose:Defrosting

Functions

Defrosting

4.Setthemode,0–5

Defrosting

Mode0–5

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6.6ProgrammingtheWeekschedule

Settheweekscheduleaccordingtobelowprocedure:

1.Gototheservicemenubyusingthe
SELECTIONknob.

2.Entertheservicelevelbytypingthepassword,
default1111.UsetheSELECTIONknobforeach
digitandconrmwiththeCONFIRMbuttonafter
eachsetdigitandchoose"NO"forthesystemnot
belocked.

Password

PasswordXXXX
LockedYES/NO

3.Goto:Weekprogram

Service

Weekprogram

4.ChooseWeekprogramagain.

Weekprogram

Fanspeed

4.Setweekdayandtimeyouwanttheunitto
beinONlevel.Twoperiodsperdaycanbe
programmed.Therestofthetimetheunitwillbein
OFFlevel.

Weekprogram

Day:MON
Per1:07:0016:00
Per2:00:0000:00

5.Gobacktothepreviousdialogueframewiththe
BACKbuttonandgodowntoFanspeed.

Weekprogram

Fanspeed

7.Setwhichfanspeedthefanissupposedtobe
runningintheONlevel,choosebetweenLow,
NomorHigh.

Setwhichfanspeedthefanissupposedtobe
runningintheOFFlevel,choosebetweenOFF,
Low,NomorHigh.

Note:

Ifanelectricalre-heaterbatteryisinstalledand
activeandtheunitisshutdownfromthecontrol
panel,forexamplebychoosingOFF .Whenthe
unitisinOFFlevelintheweekprogram,thefans
willcontinuetorunfor3minutes,topreventthe
heaterfromtriggeringtheoverheatprotection
sensor,beforetheystop.

Fanspeed

Onlevel:low/nom/high
Offlevel:off/low/nom/high

8.StepbackwiththeBACKbuttonuntilyoureach
themainmenudisplay

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6.7Ext/Forcerun

Itispossibletoprogramextendedtimeyouwanttheunittoworkunderoperationconditionsotherthan
determinedbytheweekschedule.

1.Gototheservicemenubyusingthe
SELECTIONknob.

2.Entertheservicelevelbytypingthepassword,
default1111.UsetheSELECTIONknobforeach
digitandconrmwiththeCONFIRMbuttonafter
eachsetdigitandchoose"NO"forthesystemnot
belocked.

Password

PasswordXXXX
LockedYES/NO

3.Goto:Ext/ForceRun

Service

Ext/ForceRun

4.Setthetimeinminutestheunitistorunin
extended/forcedrunningmode.Valuerange:
0–240minutes.

Setthefanspeedforthismode.Choosebetween
Low,NomorHigh.
Defaultvalue:Nom.

Ext/ForceRun

Minutes:0

Fanspeed:Nominal

6.8Extrafunctions

Theunitisequippedwithanumberofextraon/offfunctionswhichcanbeactivatedfromexternalon/off
switchesthatcanbeconnectedtothedigitalinputsonthemainprintcard(seewiringdiagram).

Thefollowingpossibilitiesareavailable:

•Digitalinputs1–3:Byconnectingon/offswitchestotheseinputsit’spossibletochoose3individual

fanspeedsettingsinthecontrolpaneldependingonatemporaryneedforthebuilding(forexample
loweringtheextractairfanspeedwhenanopenreplaceisused).Seechapter8.5.

DI3,ispreparedandalreadyconnectedinternallyforeasyaccessononegableendoftheunit.See
chapter5.6.

•Digitalinput4:Makesitpossibletoturntheelectricalre-heaterbatteryonoroff.

Activatedinputmeansthattheelectricalre-heaterisblocked.

•Digitalinput5:ActivatetheExtended/forcedrunningfunctionwitharetractiveswitch.Thefunction

overridescurrentfanspeedsettingsandrunsinforcedmodeaccordingtothesettingsinService->
Ext/Forcerun.ChoosebetweenLow,NomandHighforthisfunction.

Theinputiscalculatedbasedonthesignalsfromanimpulse-switch.Ifastandardswitchisused,the
countdownofthesettimestartswhentheswitchisswitchedoff.

•Digitalinput7:Home/leave,switchingonthisinputdecreasestheset-pointforsupplyair-tempwith

10°C.Thisfunctionisusedwhenthebuildingisuninhabitedforalongerperiod.Thisfunctionis
howevernotworkingiftheunithasbeenconguredtooperatewithahotwaterheater.

ItisrecommendedtoconnecteitherofDI1,DI2orDI3inparallelwithDI7.IfDI7isactivated,setthe
fansspeedtomin.FanspeedsettingsaredonewhenconguringDI1,DI2orDI3.

Seemenuoptionsin“ServicemenuOverview”(chapter8.5).

7Beforestartingthesystem

Whentheinstallationisnished,checkthat:

•Theunitisinstalledinaccordancewiththeinstructions

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•Theunitiscorrectlywired

•Outdoorandexhaustairdampersandsilencersareinstalledandthattheductsystemiscorrectly
connectedtotheunit

•Allductsaresufcientlyinsulatedandinstalledaccordingtolocalrulesandregulations

•Outdoorairintakeispositionedwithsufcientdistancetopollutionsources(kitchenventilatorexhaust,
centralvacuumsystemexhaustorsimilar)

•Allexternalequipmentareconnected

•Theunitiscorrectlyconguredandcommissioned

•Theweekscheduleandfanspeedsettingsarecorrectlyprogrammed.

8Operation

8.1Settingtemperature

Thesupplyairtemperatureissetmanuallyin6stepsinthemainmenudisplaybychoosingthe
temperaturesymbol.

Ifanelectricalorwaterre-heaterisinstalledthetemperaturesetpointsare:

12.0,14.5,17.0,19.5and22.0°C.Defaultvalue:12.0°C.

Ifthere-heaterisdeactivated,thetemperaturestepsare:

15.0,16.0,17.0,18.0or19.0°C.Defaultvalue:15.0°C.

Eachtemperaturestepisillustratedbyincreasingthellingofthetemperaturesymbol.

Anunlledtemperaturesymbolisthe6thsetpointandwillactivatemanualsummermode.Seechapter8.3

8.2Manualsettingoffanspeed

Itispossible,atanytime,tomanuallysetthefanspeedinthemainmenudisplay.Bychoosingthefan
symbolandconrmingitispossibletoincreaseordecreasethefanspeedinthe4steps:Off,Low,
NomandHigh.

Bydoingso,youoverridetheprogrammedweekschedulefortheunituntiltheendofthepresenttime
periodintheweekprogram(chapter6.6).

Note:

ThefancanbesettoOFFbyactivatingMANfanstop.Seeservicemenudescriptionunderfunctions.

8.3Manualandautomaticsummermode

Manualsummermodeoccursifonetemperaturesteplowerthanthe12°Cstepisselected.The
temperaturesymbolonthemainmenuisthencompletelyempty.

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Te mp

Ifthere-heaterisactive,itwillswitchoffduringmanualsummermode.Manualsummermodeaborts
automaticallyaftertwominutesifthesupplyairtemperatureisless,orequalto,5°C.

Ifawaterheaterbatteryisinstalledandactivated,themanualsummermodeisabortediftheoutdoorairor
supplyairtemperatureisless,orequalto,5°C.

Theunitwillautomaticallyalternatebetweenwinteroperationwithheatrecoveryandsummeroperation
withoutheatrecovery.

8.4Coolrecovery

Iftheoutdoorairiswarmerthantheextractairandthesupplyairisabovethesetpoint,coolrecovery
occurs.Thisconditionblockstheheatregulationprocess.

8.5Servicemenuoverview

Entertheservicemenubyselectingtheservicesymbolinthedisplay.

MenuLevel1MenuLevel2MenuLevel3Explanation

Service

Password

Password

PasswordXXXX
LockedYES/NO

Entertheservicelevel
bytyping11 11.Usethe
SELECTIONknobforeach
digitandconrmwiththe
CONFIRMbuttonafter
eachsetdigit.NOwill
unlockthesystemand
allowparameterchanges.

Service

ChangePassword

Changepassword

ActualXXXX
NewXXXX
ConfirmXXXX

Setnewpasswordif
necessary.

Incasethenewpassword
wouldbeforgottenor
misplacedit’sstillpossible
toentertheservicelevel
bywriting8642.This
overridestheearlierset
password.

Service

Filterperiod

Filterperiod

Timeto
replace:
12month

ResetNO/YES

Showsselectedtime
intervalbetweenlter
change.

SetResetofthelter
periodtoYESafter
completedlterchange.

Settimebetweenlter
changes.

Service

Time/Date

Time/Date

YY/MM/DD

Date:12/09/12

Time:10:00
Weekday:Sat

Showscurrentsetdate
andtime.

SetCorrectdateandtime.

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MenuLevel1MenuLevel2MenuLevel3Explanation

Service

Ext/ForceRun

Ext/ForceRun

Minutes:0

Fanspeed:
Nominal

Usethisdialogueframe
toprogramextendedtime
youwanttheunittowork
underoperationconditions
otherthandeterminedby
theweekschedule.

Showssettimefor
extended/forcedrunning.

ShowsSetfanspeed.

Setthetimeinminutes

theunitistorunin
extended/forcedrunning
mode.V aluerange:0–240
minutes.

Setthefanspeedforthis
mode.Choosebetween
Low,NomorHigh.
Defaultvalue:Nom.

Weekprogram

Weekprogram

Weekprogram

Day:MON
Per1:07:0016:00
Per2:00:0000:00

Programhowyouwantthe
unittooperateaccording
totheweekschedule.It’s
possibletoset2periods
perday.

Setweekdayandtime
intervalforthetimeyou
wanttheunittobeinON
mode.

Service

Weekprogram

Weekprogram

Fanspeed

Fanspeed

Onlevel:
low/nom/high
Offlevel:
off/low/nom/high

Usethisdialogueframe
todeterminetheONand
OFFspeedforthefansin
theweekschedule.

SetONlevel.
ChoosebetweenLow,
NomorHigh.
Defaultvalue:Nom

SetOFFlevel.
ChoosebetweenOFF ,
Low,NomorHigh.
Defaultvalue:Low.

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MenuLevel1MenuLevel2MenuLevel3Explanation

Service

Fanspeedlog

Fanspeedlog

Level:1–5
Reset:NO/YES
SF:140/140
EF:140/140

Usethisdialogueframe
toseehowthefanshave
operatedduringthetime
(h)theyhavebeenactive.

Thespeedsareshownin
5differentlevels:

•Level1:0%

•Level2:1–29%

•Level3:30–44%

•Level4:45–59%

•Level5:60–100%

Choosebetweenthelevels
toseethetimeinhours
thefanshavebeenactive
inthedifferentlevels.

ResetYesresetstheSF
andEFtimeintheleft
columnforalllevels.The
rightcolumncontinuesto
countaheadandcannot
bereset.

Note:

Factoryreset(see

Functions–>Factory
reset)willnotaffectthis

function

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MenuLevel1MenuLevel2MenuLevel3Explanation

Functions

Heater/Cooler

Heater/Cooler

Heater:
None/Electrical/Water
Cooler:None/Water

Usethisdialogueframeto
setuptheunitforheating
and/orcooling.

SetHeatertoNone,
ElectricalorWater.

SetCoolertoNoneor
Water.

Functions

Frost
protection

Frostprotection

Alarmlimit:7°C

Showscurrentsetfrost
protectionalarmlimitin°C
fortheinstalledwatercoil.

SetAlarmlimitin°C.
Defaultvalue:7°C.

Functions

Systemcurve

Systemcurve

EF:1–10
SF:1–20

Thisfunctionisto
compensatetheow
valuesfordifferentsystem
pressures.

Seechapter6.3

Service

Functions

Functions

Airflow

VSR300:

Airflowl/sEFSF

Nom7070
Max8888
Min4242

VSR500:

Airflowl/sEFSF

Nom105105
Max146146
Min6363

Usethisdialogueframe
tosetthefanspeedin
l/s.Thespeedcanbeset
individuallyforeachfan

EF:Extractfan,
SF:Supplyfan

SetthefanspeedforEF

andSFforeachstep(Low,
Nom,andHigh.

Functions

Airflowunit

Airflowunit

l/s
m3/h

Defaultvalue:l/s

Functions

Manualfanstop

Manualfanstop

Allowmanualfan
stopY/N

Setifitshouldbepossible
toturnoffthefansinthe
unitmanuallyfromthe
controlpanel.

ChosebetweenYandN.

IfYisselectedthefans
canbeturnedoffbyturning
theSELECTIONknobto
emptyfan

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MenuLevel1MenuLevel2MenuLevel3Explanation

Functions

Analoginput

Analoginput

1:SS20.0
2:ETS23.0
3:Unused
4:OT/FPS20.0
5:OS10.5

Showsanalogueinputs
fromactivetemperature
sensors.

SS:Supplyairtemp
sensor.

ETS:Extractairtemp
sensor.

OT/FPS:Overheat
protectionsensor/Frost
protectionsensor.

OS:Outdoorairtemp
sensor.

Functions

Analogoutput

Analogoutput

A01
auto/man/off0.0V
A02
auto/man/off7.3V
A03
auto/man/off0.0V

Showscurrentanalogue
outputsin0–10Vto
hot/coldwateractuator.

SetAO1(Analogueoutput
tohotwateractuator)to
auto,manoroff.
Defaultvalue:off.

SetAO2(Analogueoutput
tocoldwateractuator)to
auto,manoroff.
Defaultvalue:off.

AO3Notused.

Functions

Digitalinput

Digitalinput

DI1ON/OFF
DI2ON/OFF
DI3ON/OFF
DI4ON/OFF
DI5ON/OFF
DI6ON/OFF
DI7ON/OFF

Showscurrentsettingof
thedigitalinputsONor
OFF

DI1:Fanconguration

DI2:Fanconguration

DI3:Fanconguration

DI4:Heaterstopped

DI5:Extended/forced
running

DI6:Rotorsensor

DI7:Home/leave

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MenuLevel1MenuLevel2MenuLevel3Explanation

Functions

ConfigDI1–3

ConfigDI1–3

1SFhighEFnom
2SFoffEFlow
3SFhighEFhigh

Usethisdialogueframe
tosethowyouwantthe
fanstoreactto3different
digitalinputswhenthey
areswitchedonoroff(the
settingsinthecolumnto
theleftareexamples).

On/offswitchesneedto
beconnectedphysically
toterminalsonthemain
printcardtoobtainthe
differentfunctions.Seethe
wiringdiagramformore
information.

Setthesupplyairfan(SF)
andextractairfan(EF)to
off,low,nomorHighfor
digitalinputs1–3

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MenuLevel1MenuLevel2MenuLevel3Explanation

Functions

DI4–7

DI4–7

4Stopheat
5Extrun
6Rotor
7Home/Leave

DI4–7aredefaultset
fromfactoryandcan’t
bechangedbythe
user.Belowfollowsa
shortdescriptionofeach
function.

DI4:Makesitpossibleto
turntheelectricalre-heater
batteryonoroff.Activated
inputmeansthatthe
electricalre-heateris
blocked.

DI5:Activatethe
Extended/forcedrunning
function.Thefunction
overridescurrentsetfan
speedsettingsandrunsin
forcedmodeaccordingto
thesettingsinService->
Ext/Forcerun.Choose
betweenLow,Nomand
Highforthisfunction..
Theinputiscalculated
basedonthesignalsfrom
animpulse-switch.Ifa
standardswitchisused,
thecountdownoftheset
timestartswhentheswitch
isswitchedoff.

DI6:Rotorsensor.

DI7:Switchingonthis
inputdecreasesthesupply
airtempsetpointwith
10°C.
Thisfunctionisusedwhen
thebuildingisuninhabited
foralongerperiod.

Itisrecommendedto
connectDI7andDI1or
DI3inparallel.IfDI7is
activated,setthefans
speedtomin.Fanspeed
settingsaredonewhen
conguringDI1/DI3.

Note:

The“Home/Leave”
functionisnotworkingif
Waterheaterisactivated.

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MenuLevel1MenuLevel2MenuLevel3Explanation

Functions

Digitaloutput

Digitaloutput

1:SF67%
2:EF67%
3:RotON/OFF
4:ALARMY/N
5:DmpY/N
6:ReheaterY/N

ShowsThecurrent
settingsofdigitaloutputs
1–5(thesettingsinthe
columntotheleftare
examples).

1:SF67%:Currentset
speedofthesupplyairfan
(shownaspercentageof
themaximumspeed).

2:EF67%Currentset
speedoftheextractairfan
(shownaspercentageof
themaximumspeed).

3:Showsiftherotoris
activeornot.

4:AlarmY/N:Indicatesif
thesum.alarmisactiveor
not

5:DmpOFF:
Outdoor/exhaustair
damperisonoroff(230V
signalrelay).

6:ReheaterY/N:Indicates
iftheelectricalre-heateris
activeornot.

Functions

Defrosting

Defrosting

Mode0–5

Usethisdialogueframe
tosethowaggressive
youwantthedefrosting
functiontooperate(see
chapter6.5).

Functions

Modbus

Modbus

Address1
Baud9600/19200
Parity
None/Even/Odd

InformationaboutModbus
communicationand
variablescanbefoundin
theModbususermanual
forresidentialunitsinthe
onlinecatalogueat

www.systemair.com.

Functions

Factoryreset

Factoryreset

Reallyreset?
YES/NO

Usethisdialogueframeto
returntofactorysettings.

SetYESorNO

Note:

Thiswilleraseallyour
personalsettingsthathave
beendonefortheunit.

Service

Language

Languages

Language
ENGLISH

Usethisdialogueframeto
returntoselectyourlocal
language.

SetLanguagebyturning
theSELECTIONknob.

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MenuLevel1MenuLevel2MenuLevel3Explanation

Service

Versions

VersionVR150

CDEC
Appl.1.08.00

1.22.00
Boot1.00.01

1.01.00

Showscurrentsoftware
versions

Note:

Thesoftwareversionsare
justanexampleandmay
differinaspecicunit.

Service

Alarms

Alarms

FanY
EmT/FrostN
DampY
PbFailN
TempN
FilterY

Showsthealarmlistand
whichalarmsthathave
beentriggered(indicated
byY).Seealarmlist
(chapter9.4.1)

9Service

9.1Warnings

Danger

•Makesurethatthemainssupplytotheunitisdisconnectedbeforeperforminganymaintenanceor
electricalwork!

•Allelectricalconnectionsandmaintenanceworkmustbecarriedoutbyanauthorizedinstallerand
inaccordancewithlocalrulesandregulations.

Warning

•Thesystemshouldoperatecontinuously ,andonlybestoppedformaintenance/service

•Althoughthemainssupplytotheunithasbeendisconnectedthereisstillriskforinjuryduetorotating
partsthathavenotcometoacompletestandstill

•Bewareofsharpedgesduringmaintenance.Useprotectivegloves

•Makesurethatltersaremountedintheirplacebeforerunningthesystem

•Thisproductmustonlybeoperatedbyapersonwhichhassuitableknowledgeoreducationwithin
thiseldorcarriedoutwiththesupervisionofasuitablyqualiedperson.

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9.2Internalcomponents

1

1112

65 87

9

14

4

10

2 3

13

Fig.13Internalcomponents

PositionDescription

1

Supplyairfan

2

Overheatprotectionsensor

3

Overheatprotectionresetbutton

4Internalelectricalre-heater

5

Rotorsensor

6Rotatingheatexchanger

7

Outdoorairsensor

8

Supplyairlter

9

Extractairfan

10

Drivebeltforrotatingheatexchanger

11Rotormotor

12Extractairsensor

13

Extractairlter

14

Supplyairsensor

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9.3Componentdescriptions

9.3.1Fans

ThefanshaveexternalrotormotorsofECtypewhichcanbesteplesslycontrolledindividually20–100%.
Themotorbearingsarelifetimelubricatedandmaintenancefree.Itispossibletoremovethefansfor
cleaning,see“UserManual”formoreinformation.

9.3.2Filters

ThefactoryinstalledltersareoflterqualityF7forthesupplyairandG3fortheextractairlter.Thelters
needtobereplacedwhenpolluted.Newsetsoflterscanbeacquiredfromyourinstallerorwholesaler.

FilterqualityG3canbeinstalledforsupplyairltering.
Theltertypeislabelledonthetopofthelter

Note:

IftypeG3ltersareusedinsteadofF7,thesystemcurveforSupplyFan(SF)mustbechanged:

ForG3typelter:11–20,forF7typelter:1–10.

9.3.3Heatexchanger

SAVEVSR300/500isequippedwithahighlyefcient,rotatingheatexchanger.Requiredsupplyair
temperatureisthereforenormallymaintainedwithoutaddingadditionalheat.

Theheatexchangerisremovableforcleaningandmaintenance,see“UserManual”formoreinformation.

9.3.4Printcard

Themainprintcardcontrolsthefunctionsandsettemperaturesoftheunit.

1

1.Printcard

Itispossibletoconnectexternalaccessoriestoterminalsintheprintcard.Seewiringdiagramformore
information.

9.3.5Temperaturesensors

Fourtemperaturesensors(NTC,10kΩat25°C)areincludedintheunitfromfactoryandpositionedinthe
correspondingairchambers.

Thesensorsareconnectedtothemainprintcard.Seewiringdiagramformoreinformation.

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9.3.6ElectricalRe-heaterbattery

There-heaterbatteryispositionedinthesupplyairchamber.

There-heaterisactivatedbyarelayandswitchesonifthesupplyairtemperatureis2°Clowerthantheset
pointandswitchesoffifoneormoreofthefollowingconditionsaremet:

1.Ifthesupplyairtemperatureismorethan2°Cabovethesetpoint

2.Iftheoverheatprotectionisactivatedorthesensorismalfunctioning

3.Iftheemergencythermostatistriggeredorbroken

4.Ifthesupplyairsensorisinerrorstate

5.Ifthesupplyairfanisnotrunning

6.Iftheheaterissettonotactiveinthemenu.

9.3.7Overheatprotectionresetbutton

Ifthesupplyairtemperatureislow,itcanindicatethattheoverheatprotectionistriggered.Theoverheat
protectioncanberesetbypressingtheresetbutton.

Thebuttonisplacedonthetopcover.

1

1.Resetbutton

9.3.8WaterRe-heaterbattery

Awaterre-heaterbattery(optional),whichcanbeacquiredasanaccessory ,canbecontrolledbythe
analogoutputWH(0-10VDC).ThewaterheaterusesAI4forfrostprotection(OT ,“Overheatprotection”,
changestoFPS,Frostprotectioninthemenu).

Thefrostprotectionsensorshouldthenbeastraponsurfacesensorsituatedonthereturnwatertube.
Sensortype:TG-A130

Thesupplyairsensor(SS)atAI1mustbereplacedwithaductsensorwhichcanbeacquiredasan
accessory.Sensortype:TG-K360.Seewiringdiagramformoreinformation.

Onlyelectricalorwaterre-heaterisallowed,i.e.ifawaterre-heaterisselected,theelectricalre-heateris
deactivatedandviceversa.

Note:

Ifawaterre-heaterbatteryisinstalledwestronglyrecommendyoutoalsoinstallanoutdoorairdamper
withaspringreturnactuator.

9.3.9WaterCooler

Awatercooler(optional)canbeacquiredasanaccessoryandbecontrolledbytheunit.Ifawatercooler
isinstalledthesupplyairsensor(SS)atAI1mustbereplacedwithaductsensorwhichcanbeacquired
asanaccessory .Sensortype:TG-K360.Seewiringdiagramformoreinformation.

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9.4Troubleshooting

Awarningtrianglewithtextinthedisplayindicatesanalarm.Turnmenuselectortothewarningtriangle
andpressconrmtwicetoviewthealarm.

Ifproblemsshouldoccur,pleasechecktheitemsbelowbeforecallingyourservicerepresentative.

Malfunction

Action

Fansdonotstart

1.Checkthedisplayforalarms.

2.Checkthatallfusesandfastcouplingsareconnected(mainssupplyand
fastcouplingsforsupplyandextractairfans).

3.CheckthattheweekprogramisinONmode.Theweekprogrammightbe
inOFFmodewiththefanspeedsettoOFF(chapter6.6)

4.Checkifoneofthedigitalinputs1–3(DI1–3)isactiveandsettooff.This
wouldforceoneorbothfanstostopdependingonthesetup(chapter8.5).

Reducedairow1.Checkthedisplayforalarms.

2.Checksettingoffanspeedinthecontrolpanel(chapter6.1.1).

3.Checkweekprogram(chapter6.6).

4.Checkifoneofthedigitalinputs1–3(DI1–3)isactiveandsettooff.This
wouldforceoneorbothfanstostopdependingonthesetup(chapter8.5).

5.Checklters.Changeofltersrequired?

6.Checkdiffusers/louvres.Cleaningofdiffusers/louvresrequired?

7.Checkfansandheatexchangeblock.Cleaningrequired?

8.Checkifthebuildingsairintakeandroofunit(exhaust)havebeenclogged.

9.Checkvisibleductrunsfordamageand/orbuildupofdust/pollution.

10.Checkdiffuser/louvreopenings.

Theunitcannotbe
controlled
(controlfunctionsare
stuck)

1.Resetcontrolfunctionsbypullingouttheplugfor20-30seconds.

2.Checkthemodularcontactconnectionbetweenthecontrolpaneland
themainprintcard.

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Lowsupplyair
temperature

1.Checkthedisplayforalarms.

2.Checksetsupplyairtemperatureinthecontrolpanel.

3.Checktheanalogueinputsintheservicemenutoverifythatthetemp
sensorsareok(chapter8.5).GotoFunctions>Analogueinput
andverifythetemperaturereadingsfromthetempsensors.

4.Checkiftheoverheatprotectionthermostatisstillalert.Ifnecessary,
resetbypressingtheredbuttonplacedonthetopcoveroftheunit.

5.Checkifdigitalinput4(DI4)issettooff.Thiswouldforcetheelectrical
re-heaterbatterytobeswitchedoff(chapter8.5)

6.Checkiftheextractltermustbechanged.

7.Atverycoldoutdoorconditionsanelectricalorwaterpreheatingbattery
mightbenecessary .Thiscanbeacquiredasanaccessory.

8.Checkthebalancebetweenthesupplyandextractair

Noise/vibrations1.Cleanfanimpellers.

2.Checkthatthescrewsholdingthefansaretightened.

3.Checkthattheantivibrationpadsarettedatthebottomoftheunit.

9.4.1Alarmlist

AlarmExplanation

Dothefollowing

FanIndicateserroroneithersupplyor

extractairfan.

Thealarmisdisplayedinthecontrolpanel.

Contactyourinstallationcompanyorplaceof
purchase.

EMT/FrostIndicatestriggeredfrostprotection

(incaseofinstalledwaterheating
battery)ortriggeredoverheat
protection(incaseofinstalled
electricre-heaterbattery).

Atriggeredfrostprotectionalarmresultsinthe
following:

•Bothfansstop.

•Outdoorandexhaustairdampersclosed.

•Watervalveopenscompletely(10Vsignalgoes
outtotheactuator).

Theunitwillrestartoncethewatertemperature
reaches+5°Cabovethesetfrostprotection
temperature.

Atriggeredoverheatprotectiongivesanalarminthe
controlpanel.

Resetbypushingtheredbuttonplacedonthetop
coveroftheunit..

Iftheproblemcontinuescontactyourinstallation
companyorplaceofpurchase.

Rotor

Indicatesarotormalfunction.

Thealarmisdisplayedinthecontrolpanel.

Therotatingheatexchangerhasstopped.Checkthe
rotorbelt.

Iftheheatexchangerisstillrotating,therotorsensor
maybefaulty.

Contactyourinstallationcompanyorplaceofpurchase

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SystemairAB

AlarmExplanation

Dothefollowing

PbFailErrorinconnectionwithrelay

cardfortheelectricalre-heater(if
installedandactivated).

ET2maybetriggeredduetohigh
temperature.

Thealarmisdisplayedinthecontrolpanel.

Theheaterwillnotbeactivated.

FortriggeredET2,wait10–15min.Iftheerror
remains,contactyourinstallationcompanyorplace
ofpurchase.

Temp

Malfunctioninoneormoreofthe
temperaturesensors.

Thealarmisdisplayedinthecontrolpanel.

Contactyourinstallationcompanyorplaceof
purchase.

Filter

Timeforlterchange.

Thealarmisdisplayedinthecontrolpanel.

Changelteraccordingtoinstructionsintheuser
guide.

9.5Replacingrotordrivebelt

IfthealarmRotorisraised,seechapter9.4.1,therotordrivebeltmaybedamagedorbroken.

1

Fig.14Rotordrivebelt

Thereplacementdrivebelt(1)isadjustableanddeliveredwithanippleattachedinoneend.

1.Stoptheunitbydisconnectingthemains.

2.Openandremovethesidecover.

3.Removethebrokendrivebelt.

4.Usetapetoattachthedrivebelttotherotatingheatexchanger,androtatetheexchangerbyhand
togetholdofthedrivebelt.

5.Removethetapeandputthe”empty”endontothenipple.Presstheendsrmlytowardseachother
andtightenthenipple.

6.Pullthedrivebeltontothebeltpulleyandrotatetheexchangerbyhand.Checkthatthebeltpulley
rotates.

Note:

Ifthedrivebeltslips,thedrivebeltmaybetoolongandneedstobeshortened.Cutthedrivebelt5
mmandgotostep5.

7.Replaceandlockthesidecoverandconnecttheunittomains.

8.CheckthatthealarmhasceasedontheControlDisplay.

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Note:

Ifthealarmremains,checktherotorsensor.

9.6Typelabel

Beforecallingyourservicerepresentative,makeanoteofthespecicationandproductionnumberfrom
thetypelabel,whichcanbefoundonthesideoftheunits,nexttotheexternalconnections.

S AVE VSR 300 /50 0

1670 W

220/240 V~

5A 5 0/6 0 Hz

IP2 418 46W

2x8 8WM

M

Se rial.no: 12345 6/654 321-0 001 /130117

1

2

3

4

5

Fig.15T ypelabel

PositionDescription

1

Productcode(productspecication)

2Productitemnumber

3Productionordernumber

4

Consecutivenumber

5

Productiondate

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lastpage

SystemairABreservestherighttomakechangesandimprovementstothecontents

ofthismanualwithoutpriornotice.

SystemairAB

Industrivägen3

SE-73930Skinnskatteberg,Sweden

Phone[phone]

Fax[phone]

www.systemair.com

208115