SystemAir SAVE VTR 300/B Installation And Service

SAVEVTR300/B

0

0

0

0

0

0

InstallationandService

Systemairisnotliableorboundbywarrantyiftheseinstructionsarenot
adheredtoduringinstallationorservice.

©2013CopyrightSystemairAB

SystemairABcanacceptnoresponsibilityforpossibleerrorsincatalogues,brochuresandotherprinted
material.SystemairABreservestherighttoalteritsproductswithoutnotice.Thisalsoappliestoproducts
alreadyonorderprovidedthatsuchalterationscanbemadewithoutsubsequentialchangesbeing
necessaryinspecicationsalreadyagreed.

Allrightsreserved.

Documentinoriginallanguage

208348-EN_GB

10-03-2014A002

Contents

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

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

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

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

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

4.2LeftandRightmodels.......................................................................................................3

4.3Transportandstorage.......................................................................................................3

4.4T echnicaldata..................................................................................................................4

5Installation.................................................................................................................................7

5.1Unpacking........................................................................................................................7

5.2Where/howtoinstall.........................................................................................................7

5.3Installationprocedure.......................................................................................................7

5.4Condensationdrainage.....................................................................................................8

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

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

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

6.3Systemcurves.................................................................................................................13

6.4Fanspeedsettings...........................................................................................................17

6.5Defrostlevelsettings........................................................................................................19

6.6ProgrammingtheWeekschedule......................................................................................20

6.7Ext/Forcerun...................................................................................................................21

6.8Extrafunctions.................................................................................................................21

6.9Electricalconnections.......................................................................................................22

6.10Externalconnectionsontheunit......................................................................................23

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

8Operation..................................................................................................................................24

8.1Settingtemperature..........................................................................................................24

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

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

8.4Coolrecovery...................................................................................................................25

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

9Service......................................................................................................................................32

9.1Warnings.........................................................................................................................32

9.2Internalcomponents.........................................................................................................33

9.3Componentdescriptions...................................................................................................34

9.4Troubleshooting...............................................................................................................36

9.5Replacingrotordrivebelt..................................................................................................38

9.6Typelabel........................................................................................................................39

1DeclarationofConformity

Manufacturer

SystemairAB

Industrivägen3

SE–73930SkinnskattebergSWEDEN

Ofce:[phone]Fax:[phone]

www.systemair.com

herebyconrmsthatthefollowingproduct:

Heatrecoveryventilationunit:SAVEVTR300/B

(Thedeclarationappliesonlytoproductintheconditionitwasdeliveredinandinstalledinthefacilityin
accordancewiththeincludedinstallationinstructions.Theinsurancedoesnotcovercomponentsthatare
addedoractionscarriedoutsubsequentlyontheproduct).

Complywithallapplicablerequirementsinthefollowingdirectives:

•MachineryDirective2006/42/EC

•LowVoltageDirective2006/95/EC

•EMCDirective2004/108/EC

Thefollowingharmonizedstandardsareappliedinapplicableparts:

ENISO12100:2010Safetyofmachinery-Generalprinciplesfordesign-Riskassessmentandrisk

reduction

EN13857

EN60335-1

EN60335-2-40

EN60529

EN62233

EN50106

EN61000-6-2

EN61000-6-3

Thecompletetechnicaldocumentationisavailable.

Skinnskatteberg,10-03-2014

Safetyofmachinery–Safetydistancestopreventhazardzonesbeingreached
byupperorlowerlimbs

Householdandsimilarelectricalappliances–SafetyPart1:Generalrequirements

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

Degreesofprotectionprovidedbyenclosures(IPCode)

Measurementmethodsforelectromagneticeldsofhouseholdappliancesand
similarapparatuswithregardtohumanexposure

Safetyofhouseholdandsimilarappliances–Particularrulesforroutinetests
referringtoappliancesunderthescopeofEN60335-1andEN60967

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

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

MatsSándor

TechnicalDirector

SAVEVTR300/BInstallationandService

208348

1

SystemairAB

2Warnings

Thefollowingadmonitionswillbepresentedindifferentsectionsofthedocument:

Danger

•Makesurethatthemainssupplytotheunitisdisconnectedbeforeperforminganymaintenanceor
electricalwork!

•Allelectricalconnectionsandmaintenanceworkmustbecarriedoutbyanauthorizedinstallerand
inaccordancewithlocalrulesandregulations.

Warning

•Thesystemshouldoperatecontinuously,andonlybestoppedformaintenance/service.

•Theinstallationoftheunitandcompleteventilationsystemmustbeperformedbyanauthorized
installerandinaccordancewithlocalrulesandregulations.

•Bewareofsharpedgesduringmountingandmaintenance.Useprotectivegloves.

•AlthoughtheMainssupplytotheunithasbeendisconnectedthereisstillriskforinjuryduetorotating
partsthathavenotcometoacompletestandstill.

•Makesurethatltersaremountedbeforestartingtheunit.

•Thisproductmustonlybeoperatedbyapersonwhichhassuitableknowledgeoreducationwithin
thiseldorcarriedoutwiththesupervisionofasuitablyqualiedperson.

Caution

•Donotconnecttumbledryerstotheventilationsystem.

•Ductconnections/ductendsmustbecoveredduringstorageandinstallation.

3Aboutthisdocument

ThisinstallationmanualconcernsairhandlingunittypeSAVEVTR300/BmanufacturedbySystemairAB.
Themanualconsistsofbasicinformationandrecommendationsconcerningthedesign,installation,
start-upandoperation,toensureaproperfail-freeoperationoftheunit.

Thekeytoproperandsafeoperatingoftheunitistoreadthismanualthoroughly ,usetheunitaccordingto
givenguidelinesandadheretoallsafetyrequirements.

4Productinformation

4.1General

TheSAVEVTR300/Bisaheatrecoveryventilationunit,withabuiltinrotatingheatexchanger.TheSA VE
VTR300/Bissuitableforhouseswithupto240m

TheSAVEVTR300/Bsupplieslteredoutdoorairtoresidentialareasandextractairfrombathroom,
kitchenandwetrooms.SAVEVTR300/Bisequippedwitha1670Welectricalre-heaterbattery.

SAVEVTR300/BInstallationandService

208348

2

heatedlivingarea.

2

SystemairAB

4.2LeftandRightmodels

Therearetwomodeloptions,right(R)andleft(L)model.Thedifferentmodelsarerecognizedbythe
placingoftheinternalcomponentsandthesupplyairoutlet,whichissituatedonleftsideoftheunitonan
(L)unitandontherighthandsideonan(R)unit.

Note:

Thisdocumentdescribesaleft(L)model.Theinsideofaright(R)modelismirrored.

4.3Transportandstorage

TheSAVEVTR300/Bshouldbestoredandtransportedinsuchawaythatitisprotectedagainstphysical
damagethatcanharmpanelsetc.Itshouldbecoveredsodust,rainandsnowcannotenteranddamage
theunitanditscomponents.

Theapplianceisdeliveredinonepiececontainingallnecessarycomponents,wrappedinplasticona
palletforeasytransportation.

SAVEVTR300/BInstallationandService

208348

3

SystemairAB

4.4Technicaldata

A

B

C

D E F

G

T

V

U

H

I

J

K

L

M

N

O

P

R

S

Ø160(4)

Ø125

4.4.1DimensionsandWeight,Lmodel

Fig.1Dimensionsandweight,Lmodel

Measuresinmmandweightinkg.

AB

762485

LMN

20625510413621630349078812062766

1.Includinghatch

2.Includingbracket

C

1

423

DEF

2

84280482475840525897121

O

PR

G

S

HIJK

TUVWeight

SAVEVTR300/BInstallationandService

208348

4

SystemairAB

4.4.2DimensionsandWeight,Rmodel

Ø160(4)

Ø125

V

T

A

B

G

H

I M

J

N

C

D

E F

R

U

P

O

K

L

S

Fig.2Dimensionsandweight,Rmodel

Measuresinmmandweightinkg.

AB

762486

LMN

C

1

423

DEF

2

842804824758354255104206

O

PR

G

S

HIJK

TUVWeight

1.Includinghatch

2.Includingbracket

SAVEVTR300/BInstallationandService

208348

5

SystemairAB

3112589714121629649078912062866

4.4.3Ductconnections

L R

Fig.3Ductconnections

PositionDescription

R

L

Symbol

Righthandmodel(Supplyairconnectionissituatedontherighthandsideoftheunit
viewedfromthefront)

Lefthandmodel(Supplyairconnectionpanelissituatedonthelefthandsideofthe
unitviewedfromthefront)

Description

SupplyairOutdoorairCookerhoodair

ExhaustairExtractair

Symbol

Description

4.4.4Powerconsumptionandfusesize

Re-heater1670W

Symbol

Description

Fans176W

Totalpowerconsumption1846W

Fuse10A

SAVEVTR300/BInstallationandService

208348

6

SystemairAB

5Installation

Thissectiondescribeshowtoinstalltheunitcorrectly.Toensureaproperandfail-freeoperation,itis
importantthattheunitisinstalledaccordingtotheseinstructions.

5.1Unpacking

Verifythatallorderedequipmentaredeliveredbeforestartingtheinstallation.Anydiscrepanciesfromthe
orderedequipmentmustbereportedtothesupplierofSystemairproducts.

5.2Where/howtoinstall

TheSAVEVTR300/Bshouldpreferablybeinstalledinaseparateroom(e.g.storeroom,laundryroom
orsimilar .).

Whenchoosingtheinstallationposition,considerationmustbetakenthattheunitrequiresregular
maintenance.Leavefreespaceforopeningofthefronthatchinordertoperformserviceandmaintenance
oncomponentsinsidetheunit.

TheSAVEVTR300/Bissuppliedwithapproximately1mcableandplugfor230V,singlephaseearthed
connectionplacedatthebottomoftheunit.

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

5.3Installationprocedure

Note:

Itisrecommendedtoremovetheheatexchangerbeforetheinstallationtomaketheunitlighter.Theheat
exchangerweighsabout14kg.Howtoremovetheheatexchanger,seechapter5.3.1steps1through3.

1.Preparethesurfacewheretheunitistobemounted.Makesurethatthesurfaceisat,vertical
andthatitsupportstheweightoftheunit.Performtheinstallationinaccordancewithlocalrules
andregulations.

2.Fitthemountingbracket(1)withtheanti-vibration
pad(2)tothewallwithenclosedscrews.Use
appropriateholestoscrewthebracketrmlyto
thewall.Bottomsideofbracketshouldbe40
mm(H)belowtopofunitposition.

Note:

Makesurethatthemountingbracketis
completelyhorizontaloncemountedonthewall.
Checkwithaspiritlevel.

SAVEVTR300/BInstallationandService

208348

7

SystemairAB

3.Lifttheunitinplace

Warning

Bewareofsharpedgesduringmountingand
maintenance.Useprotectivegloves.

Considertheunitweightwhenmounting!

Note:

Makesurethattheunitiscompletelyvertical
andhorizontaloncemountedonthewall.Check
withaspiritlevel.

4.Connecttheunittotheductsystem.Makesurethatallnecessaryaccessoriesareusedtocreatea
functionalventilationsolution.

Warning

Theinstallationoftheunitandcompleteventilationsystemmustbeperformedbyanauthorized
installerandinaccordancewithlocalrulesandregulations.

5.Remounttheheatexchangerifitwasremovedbeforetheinstallation.Seechapter5.3.1steps4and5.

5.3.1Howtoremoveandremounttheheatexchanger

1.Openthefronthatch.

2.Disconnecttheheatexchangerpowersupplyandtherotorsensor.Bothcablesarefoundbesidethe
heatexchanger.

3.Pullouttheheatexchanger.Someforcemaybeneeded.

4.Remounttheheatexchanger .Don’tforgettoreconnecttheheatexchangerpowerandsensorcables.

5.Closeandlockthefronthatch.

5.4Condensationdrainage

Ingeneralnocondensationdrainageisneededforrotationalheatexchangersatdryconditions.However,
ifalotofhumidairispresentintheresidence,acondensationdrainagemightbeneeded.Drainage
connectionisavailableasanaccessoryandcanbeorderedseperate.Installationinstructionsforthe
drainageareenclosedinthedrainagepipesdelivery.

Note:

Thedrainageconnectionispluggedinthebottomoftheunitatdelivery.T ousethedrainage:removethe
rubbersealandandconnectthedrainagepipe.Connectthedrainagepipetothesewer.Thewatercan
notbeledstraighttothesewerwithoutawatertrap.

SAVEVTR300/BInstallationandService

208348

8

SystemairAB

6Commissioning

1

2

3

4

Connecttheunitelectricallytothemainswiththeenclosedplug.

6.1Controlpanel

Thecontrolpanelisusedtomakethenecessaryadjustments.

Fig.4Controlpanel

PositionDescriptionExplanation

1Display

2

3

4

SELECTIONknob

CONFIRMbuttonConrmmenuchoicesorsettingsbypressingthebutton

BACKbuttonStepbackinthemenulevelsandtoabortaninitiated

Showssymbols,menusandsettings

Movethroughthemenulistsorchangesettingsand
valuesbyturningtheknobleftorright

parameterchangeandrestoretheoriginalvalueby
pressingthebutton

SAVEVTR300/BInstallationandService

208348

9

SystemairAB

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

1.ThefancanbesettoOFFbyactivatingmanualfanstop.Seeservicemenudescriptionunderfunctions.

PressCONFIRMtoaccessthealarmlist.

Note:

Itisnotrecommendedtoactivatemanualfanstop(setfantoOFF)instandardhouseholds.
Ifmanualfanstopisactivated,theunitshouldbeprovidedwithdampersinexhaustandfreshairductsto
avoidcolddraughtandriskofcondensationwhentheunithasbeenstopped.

SAVEVTR300/BInstallationandService

208348

10

SystemairAB

6.2Startupwizard

TheStartupWizardisastep-by-stepcongurationtoolthatstartsautomaticallywhentheSAVEVTR
300/Bisstartedforthersttimeorwhen:

•afactoryresetisperformed

•anewprintcardisinstalled(sparepart)
Inthiscasetheunittypemustbeentered(SAVEVTR300/B)

ThefanspeedintheStartupwizardcanbesetbyeitherl/sorapercentagewiththeFancontrol.

•IfAirflowischosen,thesettingswillbeinl/sandsystemcurvesareselected.

•IfSpeedischosen,thesettingswillbeinpercentage.Systemcurvesarenotselectable.

6.2.1Procedure

1.TurntheSELECTIONknobtochooselanguageandpress
CONFIRM

2.Chooseunittype,thischoiceisonlypresentifanewprintcard
isinstalled(sparepart)orwhenafactoryresetisperformed.

3.Setdateandtime

4.Selectheater:None/Electrical/Water

Note:

Thischoiceisavailableonlyafterafactoryreset,seechapter

6.2.2,orwhenanewprintcardisinstalled.

Languages
LanguageENGLISH

Type
SAVEVTR300/B

Time/DateYY/MM/DD

Date:12/09/12

Time:10:00
Weekday:Sat

Heater

Heater:
None/Electrical/Water

SAVEVTR300/BInstallationandService

208348

11

SystemairAB

5.Fancontrol.

Fancontrol,Airflow

TurntheSELECTIONknobtoselectthetypeoffancontrolyou
prefer,Airflow(l/s)orSpeed(%)andpressCONFIRM.

Commissionby%,seestep7.

Note:

SystemcurvesarenotselectablewhenSpeedischosen.

Note:

Beforesettingthesystemcurve,seechapter6.3fordetails.

Thisfunctionisimplementedintheunittocompensatetheow
valuesfordifferentsystempressures.

SupplyFan(SF):Totalvaluerange:1–20.ForF7typelter:
1–10,forG3typelter:11–20.
Defaultcurve:2

ExtractFan(EF):Valuerange:1–10
Defaultcurve:2

Note:

Systemcurve

EF:1–10
SF:1–20

ThefactoryinstalledltersareoflterqualityF7forthesupplyair
andG3fortheextractairlter.
Airltersareaccessoriesandcanbeobtainedfromtheinstaller
orwholesaler.

Theltertypeislabelledonthetopofthelter.

6.HereitispossibletochangetheNominal/High/Lowairowon
theExtractandSupplyairfans.Airowinl/s.

Whensettingsaredone,pressCONFIRM.

7.HereitispossibletochangetheNominal/High/Lowfanspeed
ontheExtractandSupplyairfans.Fanspeedin%.System
curvesnotselectable.

Whensettingsaredone,pressCONFIRM.

Airflowl/s

Nom

High100100

Low

Speed%

Nom

High100100

Low

EF

8282

4949

EF

5050

2525

SF

SF

SAVEVTR300/BInstallationandService

208348

12

SystemairAB

6.2.2PerformFactoryreset

Howtoperformafactoryresetifnecessary:

1.Entertheservicemenubyselectingtheservice
symbolinthedisplayandpressENTER.

2.Gotopasswordandenterthepassword,
default11 1 1

UsetheSELECTIONknobforeachdigitand
ENTERwiththeENTERbuttonaftereachsetdigit
andchooseNOforthesystemnotbelocked.

3.GotoFunctionsandselectFactoryReset

4.TurntheSELECTIONknobsoYESisshown
andpressENTER.

5.ACCEPTEDisshowninthedisplaywindow

6.TheStartupWizardstartsafterapproximately
10seconds

Password

PasswordXXXX
LockedYES/NO

Functions

Factoryreset

Factoryreset

Reallyreset?YES/NO

ACCEPTED

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.

SAVEVTR300/BInstallationandService

208348

13

SystemairAB

6.3.1Supplyair,F7typelter

0

10 0

20 0

30 0

40 0

50 0

60 0

70 0

0 20 40 60 80 10 0 12 0 14 0

P a

l/s

3 V

5 V

7,1 V

10 V

10

9

8

7

6

5

4

3

2

1

Fig.5Supplyairsystemcurves,F7typelter

SystemcurveK-factor[l/s]

118,03

29,22

37,49

45,82

5

63,70

7

82,28

91,73

101,26

SAVEVTR300/BInstallationandService

208348

4,63

2,93

14

SystemairAB

6.3.2Supplyair,G3typelter

10 0

20 0

30 0

40 0

50 0

60 0

70 0

0 20 4 0 6 0 80 10 0 12 0 14 0

P a

l/s

3 V

5 V

7,1 V

20

19

18

17

16

15

14

13

12

11

10 V

Fig.6Supplyairsystemcurves,G3typelter

SystemcurveK-factor[l/s]

1119,03

129,68

137,83

146,02

154,81

163,87

173,05

182,37

191,81

201,32

SAVEVTR300/BInstallationandService

208348

15

SystemairAB

6.3.3Extractair,G3typelter

10 0

20 0

30 0

40 0

50 0

60 0

70 0

0 20 40 60 80 1 00 1 20 1 4 0

P a

l/s

3 V

5 V

7,1 V

10 V

10

9

8

7

6

5

4

3

2

1

Fig.7Extractairsystemcurves,G3typelter

SystemcurveK-factor[l/s]

116,47

29,04

37,03

45,40

5

63,41

7

82,12

91,64

101,20

4,29

2,71

SAVEVTR300/BInstallationandService

208348

16

SystemairAB

6.4Fanspeedsettings

Thefanspeedcanbesetbyeitherl/s,m

•IfAirflowischosenintheservicemenu,thesettingswillbeinl/sandsystemcurvesareselected.

•IfSpeedischosenintheservicemenu,thesettingswillbeinpercentage.Systemcurvesarenot
selectable.

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

•Off:0l/s

•Low:49l/sor25%.

•Nom:82l/sor50%(atapproximately80Pa).

•High:100l/sor100%.

Theselevelsarepossibletochangeintheservicelevel.Seeservicemenuoverview(chapter8.5)under
functions.

3

/horapercentage.

Note:

Itisnotrecommendedtoactivatemanualfanstop(setfantoOFF)instandardhouseholds.
Ifmanualfanstopisactivated,theunitshouldbeprovidedwithdampersinexhaustandfreshairductsto
avoidcolddraughtandriskofcondensationwhentheunithasbeenstopped.

ThefancanbesettoOFFbyactivatingmanualfanstop.Seeservicemenuoverview(chapter8.5)
underfunctions.

SAVEVTR300/BInstallationandService

208348

17

SystemairAB

6.4.1Settingthefanspeed

1.GototheservicemenubyusingtheSELECTIONknob

2.Entertheservicelevelbytypingthepassword,default11 1 1.
UsetheSELECTIONknobforeachdigitandconrmwiththe
CONFIRMbuttonaftereachsetdigitandchoose"NO"forthe
systemnotbelocked.

3.Goto:Functions

Choose:Fancontrol

4.TurntheSELECTIONknobtoselectthetypeoffancontrolyou
prefer,Airflow(l/sorm

3

/h)orSpeed(%)andpressCONFIRM.

Fancontrolbyspeed,seestep7.

5.FancontrolbyAirflowl/s.

Whensettingsaredone,pressCONFIRM.

Choosesystemcurve.

6.PressBACKoncethesystemcurveshasbeensetandgoto
Airflow%.

Whensettingsaredone,pressCONFIRM.

7.FancontrolbySpeed%

Whensettingsaredone,pressCONFIRM.

Password

PasswordXXXX
LockedYES/NO

Functions

—>Fancontrol

Fancontrol

Airflow
Speed

Fancontrol

Airflowsystemcurve

SF:4EF:4

Airflow

EF

l/s

Nom

8282

High100100

Low

Speed%

Nom

4949

EF

5050

High100100

Low

2525

SF

SF

SAVEVTR300/BInstallationandService

208348

18

SystemairAB

6.5Defrostlevelsettings

Theunitisequippedwithanautomaticdefrostfunctionthatisactivatedwhenthereisriskoficinginthe
areaaroundtheheatexchanger.Thesetting0-5(table1)determineshowaggressivethedefrostingwill
be.Defaultfactorysettingismode0.

Note:

Theheatexchangershouldwithstandlowoutdoortemperatures,butinthosecaseswhereicingcan
occurpleasebeawareofthatthedefrostsettingwillgenerateanunderpressureinthebuilding.Using
areplace,beawarethatthereisapossibleriskofsmokebeingextractedintothelivingareasdueto
underpressureifdefrostingisactivated.

Table1:Defrostlevels

Defrost
mode

0

1

2

3

4

5

1.Relativehumidityintheextractairatcoldoutdoortemperatures.

2.Innewlyconstructedhousesitmightbenecessarywithahigherdefrostlevelduringtherstwinterperiod.

Relativehumidityindoors

Minimum<20%Dryareas,suchaswarehousebuildingswithfewpeopleor

Low30%-40%Ofcebuildings

Medium40%-60%

High60%-80%

Extremelyhigh>80%

1

Description

Defrostingisturnedoff

industrialbuildingsthatdon’tusewaterintheirproduction
process.

Apartmentsorhouseswithnormalhumidity

Apartmentsorhouseswithhighhumidity

Buildingswithveryhighhumiditylevel.

6.5.1Settingthedefrostlevel

1.Gototheservicemenubyusingthe
SELECTIONknob.

2

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

3.Goto:Functions

Choose:Defrosting

4.Setthemode,0–5

SAVEVTR300/BInstallationandService

208348

Password

PasswordXXXX
LockedYES/NO

Functions

Defrosting

Defrosting

Mode0–5

19

SystemairAB

6.6ProgrammingtheWeekschedule

Settheweekscheduleaccordingtobelowprocedure:

1.Gototheservicemenubyusingthe
SELECTIONknob.

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

3.Goto:Weekprogram

4.ChooseWeekprogramagain.

5.Setweekdayandtimeyouwanttheunitto
beinONlevel.Twoperiodsperdaycanbe
programmed.Therestofthetimetheunitwillbein
OFFlevel.

6.Gobacktothepreviousdialogueframewiththe
BACKbuttonandgodowntoFanspeed.

7.Setwhichfanspeedthefanissupposedtobe
runningintheONlevel,choosebetweenLow,
NomorHigh.

Setwhichfanspeedthefanissupposedtobe
runningintheOFFlevel,choosebetweenOFF ,
Low,NomorHigh.

Password

PasswordXXXX
LockedYES/NO

Service

Weekprogram

Weekprogram

Fanspeed

Weekprogram

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

Weekprogram

Fanspeed

Fanspeed

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

Note:

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

8.StepbackwiththeBACKbuttonuntilyoureach
themainmenudisplay

SAVEVTR300/BInstallationandService

208348

20

SystemairAB

6.7Ext/Forcerun

Itispossibletoprogramextendedtimeyouwanttheunittoworkunderoperationconditionsotherthan
determinedbytheweekschedule.

1.Gototheservicemenubyusingthe
SELECTIONknob.

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

3.Goto:Ext/ForceRun

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

Setthefanspeedforthismode.Choosebetween
Low,NomorHigh.
Defaultvalue:Nom.

Password

PasswordXXXX
LockedYES/NO

Service

Ext/ForceRun

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,ispreparedandalreadyconnectedinternallyforeasyaccessontheunit.Seechapter6.10.

•Digitalinput4:Makesitpossibletodisabletheintegratedelectricalre-heater

Activatedinputmeansthattheelectricalre-heaterisdisabled.

•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).

SAVEVTR300/BInstallationandService

208348

21

SystemairAB

6.9Electricalconnections

1

4

10

8 3

5

7

6

9

1

2

11

TheSAVEVTR300/Biswiredinternallyfromfactory.
Theelectricalconnectionboxcanbefoundonthesupplyairoutletsideoftheunitbehindacoverplate.
Theprintcard(1)caneasilybetakenoutfromtheunit.

Fig.8Printcardposition

6.9.1Printcardlayout

TheSAVEVTR300/Bisequippedwithbuilt-inregulationandinternalwiring.

Thegureshowstheprintcard.Seewiringdiagramformoreinformation.

Fig.9Printcard

PositionDescription

1Mainprintcard

2

3

SAVEVTR300/BInstallationandService

208348

Printcardforelectricalre-heater

Connectiontoexternalcontrolpanel(connectedtounitcasing)

22

SystemairAB

PositionDescription

4Mainssupplyconnectionbetweenmainprintcardandelectricalre-heaterprintcard

5

6

7

8

9

10

11

TerminalsforAI1–5(tempsensors)andmotorcontrol

Terminalsforexternalconnections

Terminalsformainssupplyconnections

Terminalsfordigitalinputs(DI1–7)

Terminalsforinternalcontrolpanel.

Terminalsforregulatedpowersupplytoelectricalre-heater

Modbusconnection.See"UsermanualModbus"fordetails.

6.9.2Externalconnectionsontheprintcard

Connectionterminalsforexternalequipmentcanbefoundonthemainprintcardinsidetheelectrical
connectionbox.

Fig.10Externalconnectionsontheprintcard

PositionDescriptionRemark

1

2

3

4

5

6

7

8

9

10

11

12

Outdoor/exhaustairdamper

Outdoor/exhaustairdamperReference

Outdoor/exhaustairdamper

Sumalarm

SumalarmReference

Sumalarm

GNDReference

Watercoolercontrolsignal(AO1)0–10VDC

GNDReference

Waterheatercontrolsignal(AO2)0–10VDC

GNDReference

Damper(AO3)

6.10Externalconnectionsontheunit

Normallyopen,230V1~,max1A

Normallyclosed,230V1~,max1A

Normallyopen,24V ,max1A

Normallyclosed,24V ,max1A

Notused

Twooftheconnectionsonthemainprintcardarewiredtoplugsontheunitcasing:

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

SAVEVTR300/BInstallationandService

208348

23

SystemairAB

•connectiontoDI3withpossibilitytocongurethefanspeedsindividuallythroughapotentialfree

0

2

1

3

on/offswitch

Defaultsettings:SF=High,EF=Low.

1.Cableglands

2.ConnectiontoDI3throughapotentialfreeon/offswitch

3.Connectiontocontrolpanel

7Beforestartingthesystem

Whentheinstallationisnished,checkthat:

•Theunitisinstalledinaccordancewiththeinstructions

•Theunitiscorrectlywired

•Outdoorandexhaustairdampersandsilencersareinstalledandthattheductsystemiscorrectly
connectedtotheunit

•Allductsaresufcientlyinsulatedandinstalledaccordingtolocalrulesandregulations

•Outdoorairintakeispositionedwithsufcientdistancetopollutionsources(kitchenventilatorexhaust,
centralvacuumsystemexhaustorsimilar)

•Allexternalequipmentisconnected

•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

SAVEVTR300/BInstallationandService

208348

24

SystemairAB

8.2Manualsettingoffanspeed

Te mp

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

Bydoingso,youoverridetheprogrammedweekschedulefortheunituntiltheendofthepresenttime
periodintheweekprogram(chapter6.6).

Warning

ThefancanbesettoOFFbyactivatingmanualfanstop.Seeservicemenuoverview(chapter8.5)
underfunctions.

8.3Manualandautomaticsummermode

Manualsummermodeoccursifnotemperaturestepisselected.Thetemperaturesymbolonthemain
menuisthencompletelyempty .

Iftheelectricalre-heaterisactivated,itwillswitchoffduringmanualsummermode.Manualsummer
modegoesautomaticallytostep1(setpoint12°C)aftertwominutesifthesupplyairtemperatureis
+5°Corbelow.

Ifawaterheaterbatteryisinstalledandactivated,themanualsummermodegoesautomaticallytostep1
(setpoint12°C)iftheoutdoorairorsupplyairtemperatureis+5°Corbelow.

Theunitwillautomaticallyalternatebetweenwinteroperationwithheatrecoveryandsummeroperation
withoutheatrecovery .

8.4Coolrecovery

Iftheoutdoorairiswarmerthantheextractairandthesupplyairisabovethesetpoint,coolrecovery
occurs.Thisconditionblockstheheatregulationprocess.

SAVEVTR300/BInstallationandService

208348

25

SystemairAB

8.5Servicemenuoverview

Entertheservicemenubyselectingtheservicesymbolinthedisplay.

MenuLevel1MenuLevel2MenuLevel3Explanation

Service

Password

Service

Change
Password

Service

Filter
period

Service

Time/Date

Password

PasswordXXXX
LockedYES/NO

Change
password

ActualXXXX
NewXXXX
ConfirmXXXX

Filterperiod

Timeto
replace:
12month

ResetNO/YES

Time/Date

YY/MM/DD

Entertheservicelevel
bytyping1111.Usethe
SELECTIONknobforeach
digitandconrmwiththe
CONFIRMbuttonaftereach
setdigit.NOwillunlockthe
systemandallowparameter
changes.

Setnewpasswordif
necessary.

Incasethenewpassword
wouldbeforgottenor
misplacedit’sstillpossible
toentertheservicelevelby
writing8642.Thisoverrides
theearliersetpassword.

Showsselectedtimeinterval
betweenlterchange.

SetResetofthelterperiod
toYESaftercompletedlter
change.

Settimebetweenlter
changes.

Showscurrentsetdateand
time.

Date:
12/09/12

Time:10:00
Weekday:Sat

Service

Ext/Force
Run

Ext/ForceRun

Minutes:0

Fanspeed:
Nominal

SetCorrectdateandtime.

Usethisdialogueframeto
programextendedtimeyou
wanttheunittoworkunder
operationconditionsother
thandeterminedbytheweek
schedule.

Showssettimefor
extended/forcedrunning.

ShowsSetfanspeed.

Setthetimethattheunitisto

runinextended/forcedmode.
Valuerange:0–240minutes.

Setthefanspeedforthis
mode.ChoosebetweenLow,
NomorHigh.
Defaultvalue:Nom.

SAVEVTR300/BInstallationandService

208348

26

SystemairAB

MenuLevel1MenuLevel2MenuLevel3Explanation

Service

Weekprogram

Weekprogram

Week
program

Weekprogram

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

Weekprogram

Fanspeed

Fanspeed

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

Service

Fanspeedlog

Fanspeed
log

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

Programhowyouwantthe
unittooperateaccording
totheweekschedule.It’s
possibletoset2periodsper
day.

Setweekdayandtimeinterval
forthetimeyouwanttheunit
tobeinONmode.

Usethisdialogueframeto
determinetheONandOFF
functionforthefansinthe
weekschedule.

SetONlevel.
ChoosebetweenLow,Nomor
High.
Defaultvalue:Nom

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

Usethisdialogueframetosee
howthefanshaveoperated
duringthetime(h)theyhave
beenactive.

Thespeedsareshownin5
differentlevels:

•Level1:0%

•Level2:1–29%

•Level3:30–44%

•Level4:45–59%

•Level5:60–100%

Choosebetweenthelevels
toseethetimeinhoursthe
fanshavebeenactiveinthe
differentlevels.

ResetYesresetstheSFand
EFtimeintheleftcolumnfor
alllevels.Therightcolumn
continuestocountaheadand
cannotbereset.

Note:

Factoryreset(see

Functions–>Factory
reset)willnotaffectthis

function

SAVEVTR300/BInstallationandService

208348

27

SystemairAB

MenuLevel1MenuLevel2MenuLevel3Explanation

Service

Functions

Heater/Cooler

Functions

Heater/Cooler

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

Functions

Frost

Frostprotection

Alarmlimit:7°C

protection

Functions

Systemcurve

Systemcurve

EF:1–10
SF:1–20

Functions

Fancontrol

Fancontrol

Airflow
Speed

EF

Fancontrol

Airflow

SF

l/s

Airflow

Nom

8282

High100100

Low

Fancontrol

Airflowunit

4949

Usethisdialogueframetoset
uptheunitforheatingand/or
cooling.

SetHeatertoNone,Electrical
orWater.

SetCoolertoNoneorWater.

Showscurrentsetfrost

protectionalarmlimitin°Cfor
theinstalledwatercoil.

SetAlarmlimitin°C.
Defaultvalue:7°C.

Thisfunctionistocompensate
theowvaluesfordifferent
systempressures.

Seechapter6.3

Selectthetypeoffancontrol
youprefer.Fancontrolbyl/s
or%

Usethisdialogueframeto
setthefanspeedinl/s.The
speedcanbesetindividually
foreachfan

EF:Extractfan,
SF:Supplyfan

SetthefanspeedforEFand

SFforeachstep(Low,Nom,
andHigh.

Defaultvalue:l/s

Airflowunit

Fancontrol

Speed

Functions

Manualfan
stop

l/s
m3/h

Speed%

Nom

EF

5050

High100100

Low

2525

Manualfanstop

Allowmanualfanstop
Y/N

SF

Usethisdialogueframeto
setthefanspeedin%.The
speedcanbesetindividually
foreachfan

EF:Extractfan,
SF:Supplyfan

SetthefanspeedforEFand

SFforeachstep(Low,Nom,
andHigh.

Setifitshouldbepossible
toturnoffthefansintheunit
manuallyfromthecontrol
panel.

ChosebetweenYandN.

IfYisselectedthefanscan
beturnedoffbyturningthe
SELECTIONknobtoempty
fan

SAVEVTR300/BInstallationandService

208348

28

SystemairAB

MenuLevel1MenuLevel2MenuLevel3Explanation

Functions

Analoginput

Analoginput

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

Functions

Analogoutput

Analogoutput

A01auto/man/off0.0V
A02auto/man/off7.3V
A03auto/man/off0.0V

Functions

Digitalinput

Digitalinput

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

Showsanalogueinputsfrom
activetemperaturesensors.

SS:Supplyairtempsensor.

ETS:Extractairtempsensor.

OT/FPS:Overheatprotection

sensor/Frostprotection
sensor.

OS:Outdoorairtempsensor.

Showscurrentanalogue

outputsin0–10Vtohot/cold
wateractuator.

SetAO1(Analogueoutputto
hotwateractuator)toauto,
manoroff.
Defaultvalue:auto.

SetAO2(Analogueoutputto
coldwateractuator)toauto,
manoroff.
Defaultvalue:auto.

AO3Notused.

Showscurrentsettingofthe
digitalinputsONorOFF

DI1:Fanconguration

DI2:Fanconguration

DI3:Fanconguration

DI4:Heaterdeactivated

Functions

ConfigDI1–3

ConfigDI1–3

Default:
1SFhighEFhigh
2SFlowEFlow
3SFhighEFlow

DI5:Extended/forcedrunning

DI6:Rotorsensor

DI7:Home/leave

Usethisdialogueframeto
sethowyouwantthefans
toreactto3differentdigital
inputswhentheyareswitched
on(thesettingsinthecolumn
totheleftareexamples).

Potentialfreeswitchesneed
tobeconnectedphysicallyto
terminalsonthemainprint
cardtoobtainthedifferent
functions.Seethewiring
diagramformoreinformation.

Setthesupplyairfan(SF)and
extractairfan(EF)individually
tooff,low,nomorhighfor
digitalinputs1–3

SAVEVTR300/BInstallationandService

208348

29

SystemairAB

MenuLevel1MenuLevel2MenuLevel3Explanation

Functions

DI4–7

DI4–7

4Stopheat
5Extrun
6Rotor
7Home/Leave

DI4–7aredefaultsetfrom
factoryandcan’tbechanged
bytheuser.Belowfollows
ashortdescriptionofeach
function.

DI4:Makesitpossible
todisabletheintegrated
electricalre-heater.Activated
inputmeansthattheelectrical
re-heaterisdeactivated.

DI5:Activatethe
Extended/forcedrunning
function.Thefunction
overridescurrentsetfan
speedsettingsandruns
accordingtothesettingsin

Service->Ext/Force
run.ChoosebetweenLow,

NomandHighforthisfunction.
Theinputiscalculatedbased
onthesignalsfroman
impulse-switch.Ifastandard
switchisused,thecountdown
ofthesettimestartswhenthe
switchisswitchedoff.

DI6:Rotorsensor.

DI7:Switchingonthisinput
decreasesthesupplyairtemp
setpointwith10°C.
Thisfunctionisusedwhenthe
buildingisuninhabitedfora
longerperiod.

Itisrecommendedtoconnect
DI7andDI1orDI3inparallel.
IfDI7isactivated,setthe
fansspeedtomin.Fan
speedsettingsaredonewhen
conguringDI1/DI3.

Note:

The“Home/Leave”functionis
notworkingifWaterheateris
activated.

SAVEVTR300/BInstallationandService

208348

30

SystemairAB

MenuLevel1MenuLevel2MenuLevel3Explanation

Functions

Digitaloutput

Digitaloutput

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

Functions

Defrosting

Functions

Modbus

Defrosting

Mode0–5

Modbus

Address1
Baud9600/19200
ParityNone/Even/Odd

ShowsThecurrentsettings
ofdigitaloutputs1–6(the
settingsinthecolumntothe
leftareexamples).

1:SF67%:Currentsetspeed
ofthesupplyairfan(shownas
percentageofthemaximum
speed).

2:EF67%Currentsetspeed
oftheextractairfan(shownas
percentageofthemaximum
speed).

3:Showsiftherotorisactive
ornot.

4:AlarmY/N:Indicatesifthe
sum.alarmisactiveornot

5:DmpOFF:Outdoor/exhaust
airdamperisonoroff.

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

Usethisdialogueframetoset
howaggressiveyouwantthe
defrostingfunctiontooperate
(seechapter6.5).

InformationaboutModbus
communicationandvariables
canbefoundintheModbus
usermanualforresidential
unitsintheonlinecatalogueat

www.systemair.com.

Functions

Factoryreset

Usethisdialogueframeto
returntofactorysettings.

Factoryreset

Reallyreset?YES/NO

SetYESorNO

Note:

Thiswilleraseallyour
personalsettingsthathave
beendonefortheunit.

Service

Language

Languages

Usethisdialogueframeto
returntoselectyourlocal

Language

language.

ENGLISH

SetLanguagebyturningthe
SELECTIONknob.

SAVEVTR300/BInstallationandService

208348

31

SystemairAB

MenuLevel1MenuLevel2MenuLevel3Explanation

Service

Versions

VersionSAVE
VTR300/B

Showscurrentsoftware
versions

CDEC
Appl.1.08.00

3.16.00
Boot1.00.01

1.01.00

Service

Alarms

Alarms

FanY
EmT/FrostN
DampY
PbFailN
TempN
FilterY

Note:

Thesoftwareversionsarejust
anexampleandmaydifferin
aspecicunit.

Showsthealarmlistand
whichalarmsthathavebeen
triggered(indicatedbyY).See
alarmlist(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.

SAVEVTR300/BInstallationandService

208348

32

SystemairAB

9.2Internalcomponents

1

14

15

16

13

2

3

4

5

6

7

8

9

10

11

12

Fig.11Internalcomponents

PositionDescription

1Mountingbracket

2Externalconnections

3Extractairsensor

4

5

6

7

8

9Rotormotorandbeltpulley

10Rotatingheatexchanger

11Heatexchangerdrivebelt

12Rotorsensor

13

14

15

16

Overheatprotectionsensor

Internalelectricalre-heater

Extractairlter

Mainprintcard

Supplyairfan

Supplyairlter

Extractairfan

Outdoorairsensor

Supplyairsensor

SAVEVTR300/BInstallationandService

208348

33

SystemairAB

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.Seechapter6.3.

9.3.3Heatexchanger

SAVEVTR300/Bisequippedwitharotatingheatexchanger.Requiredsupplyairtemperatureistherefore
normallymaintainedwithoutaddingadditionalheat.

Theheatexchangerisremovableforcleaningandmaintenance,see“UserManual”formoreinformation.

9.3.4Printcard

Themainprintcardcontrolsthefunctionsandsettemperaturesoftheunit.

Itispossibletoconnectexternalaccessoriestoterminalsontheprintcardandalsocommunicationto
BMS(BuildingManagementSystem)ModbuscommunicationviaRS-485.Seewiringdiagramformore
information.

9.3.5Temperaturesensors

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

Thesensorsareconnectedtothemainprintcard.Seewiringdiagramformoreinformation.

9.3.6ElectricalRe-heaterbattery

There-heaterbatteryispositionedinthesupplyairchamber.

There-heaterisactivatedbyarelayandswitchesonifthesupplyairtemperatureis2Klowerthantheset
pointandswitchesoffifoneormoreofthefollowingconditionsaremet:

1.Ifthesupplyairtemperatureismorethan2Kabovethesetpoint.

2.Iftheoverheatprotectionisactivatedorthesensorismalfunctioning.

3.Iftheemergencythermostatistriggeredorbroken.

4.Ifthesupplyairsensorisinerrorstate.

5.Ifthesupplyairfanisnotrunning.

6.Iftheheaterissettodisabledinthemenu.

SAVEVTR300/BInstallationandService

208348

34

SystemairAB

9.3.7Overheatprotectionresetbutton

1

Ifthesupplyairtemperatureislow,itcanindicatethattheoverheatprotectionistriggered.Theoverheat
protectioncanberesetbypressingtheresetbutton(1).

Fig.12Overheatprotectionresetbutton

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.

SAVEVTR300/BInstallationandService

208348

35

SystemairAB

9.4Troubleshooting

Awarningtrianglewithtextinthedisplayindicatesanalarm.Turnmenuselectortothewarningtriangle
andpressconrmtwicetoviewthealarm.

Ifproblemsshouldoccur,pleasechecktheitemsbelowbeforecallingyourservicerepresentative.

Malfunction

Fansdonotstart

Reducedairow1.Checkthedisplayforalarms.

Action

1.Checkthedisplayforalarms.

2.Checkfuseformainpowersupplyinthedistributionboxforthebuilding
andallthequickconnectorsareconnectedintheunit(quickconnectors
forsupplyandextractairfans).

3.CheckthattheweekprogramisinONmode.Theweekprogrammightbe
inOFFmodewiththefanspeedsettoOFF(chapter6.6)

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

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.Checkdiffuser/louveropenings.Cleaningofdiffusers/louvresrequired?

7.Checkfansandheatexchangeblock.Cleaningrequired?

8.Checkifthebuildingsairintakeandroofunit(exhaust)havebeenclogged.

9.Checkvisibleductrunsfordamageand/orbuildupofdust/pollution.

Theunitcannotbe
controlled
(controlfunctionsare
stuck)

SAVEVTR300/BInstallationandService

208348

1.Resetcontrolfunctionsbypullingoutthemainpowersupplyplugfor
20-30seconds.

2.Checkthemodularcontactconnectionbetweenthecontrolpaneland
themainprintcard.

36

SystemairAB

Lowsupplyair
temperature

Noise/vibrations1.Cleanfanimpellers.

1.Checkthedisplayforalarms.

2.Checksetsupplyairtemperatureinthecontrolpanel.

3.Checktheanalogueinputsintheservicemenutoverifythatthetemp

4.Checkiftheoverheatprotectionthermostatisstillalert.Ifnecessary ,

5.Checkifdigitalinput4(DI4)issettooff.Thiswouldforcetheelectrical

6.Checkiftheextractltermustbechanged.

7.Atverycoldoutdoorconditionsanelectricalpreheatingbatterymightbe

8.Checkthebalancebetweenthesupplyandextractair

2.Checkthatthescrewsholdingthefansaretightened.

3.Checkthattheantivibrationpadsarettedatthebottomoftheunit.

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

resetbypressingtheresetbutton.Seechapter9.3.7.

re-heaterbatterytobeswitchedoff(chapter8.5)

necessary.Thiscanbeacquiredasanaccessory.

Atverycoldoutdoorconditionsanelectricalpreheatingbatterymightbe
necessary.Thiscanbeacquiredasanaccessory.

9.4.1Alarmlist

AlarmExplanation

FanIndicateserroroneithersupplyor

extractairfan.

EMT/FrostIndicatestriggeredfrostprotection

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

Dothefollowing

Thealarmisdisplayedinthecontrolpanel.

Checkthatquickconnectorsareconnectedforthe
bothfans.

Contactyourinstallationcompanyorplaceof
purchase.

Atriggeredfrostprotectionalarmresultsinthe
following:

•Bothfansstop.

•Outdoorandexhaustairdampersclosed.

•Watervalveopenscompletely(10Vsignalgoes
outtotheactuator).

Theunitwillrestartoncethewatertemperature
reaches+5°Cabovethesetfrostprotection
temperature.

Atriggeredoverheatprotectiongivesanalarminthe
controlpanel.

Resetbypushingtheresetbutton.Seechapter9.3.7.

Iftheproblemcontinuescontactyourinstallation
companyorplaceofpurchase.

SAVEVTR300/BInstallationandService

208348

37

SystemairAB

AlarmExplanation

Dothefollowing

Rotor

PbFailErrorinconnectionwithrelay

Temp

Filter

Indicatesarotormalfunction.

cardfortheelectricalre-heater(if
installedandactivated).

Theoverheatprotectionsensor,
automaticreset(ET2)maybe
triggeredduetohightemperature.

Malfunctioninoneormoreofthe
temperaturesensors.

Timeforlterchange.

Thealarmisdisplayedinthecontrolpanel.

•Iftherotatingheatexchangerhasstopped.Check
therotorbelt.Seechapter9.5

•Iftheheatexchangerisstillrotating,checkthatthe
quickconnectorforthesensorisconnectedand
thatthereisanairgapof5-10mmbetweenthe
sensorandthemagnet.

Adjustthegapifnecessary.

Ifthealarmpersists,therotorsensormaybefaulty.

Contactyourinstallationcompanyorplaceof
purchase.

Thealarmisdisplayedinthecontrolpanel.

Theheaterwillnotbeactivated.

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

Thealarmisdisplayedinthecontrolpanel.

Contactyourinstallationcompanyorplaceof
purchase.

Thealarmisdisplayedinthecontrolpanel.

Changelteraccordingtoinstructionsintheuser
guide.

9.5Replacingrotordrivebelt

Danger

•MakesurethattheMainssupplytotheunitisdisconnectedbeforeperforminganymaintenanceor
electricalwork!

Warning

Riskofpersonalinjury!Theheatexchangerweighsabout14kg.Thereisariskthattheheatexchanger
fallsoutoftheunit.

Makesurethatsmallchildrenarenotbeneaththeunitwhentheheatexchangerisremoved!

IfthealarmRotorisraised,seechapter9.4.1,therotordrivebeltmaybedamagedorbroken.

SAVEVTR300/BInstallationandService

208348

38

SystemairAB

1

Fig.13Rotordrivebelt

Thereplacementdrivebelt(1)isadjustableanddeliveredwithanippleattachedinoneend.

1.Stoptheunitbydisconnectingthemains.

2.Openthefronthatch.

3.Removethebrokendrivebelt.

4.Usetapetoattachthedrivebelttotherotatingheatexchanger,androtatetheexchangerbyhand
togetholdofthedrivebelt.

5.Removethetapeandputthe”empty”endontothenipple.

6.Presstheendsrmlytowardseachothertosecurethenipple.

7.Pullthedrivebeltontothebeltpulleyandrotatetheexchangerbyhand.Checkthatthebeltpulley
rotates.

Note:

Ifthedrivebeltslips,thedrivebeltmaybetoolongandneedstobeshortened.Cutthedrivebelt5
mmandgotostep6.

8.Closeandlockthefronthatchandconnecttheunittomains.

9.CheckthatthealarmhasceasedontheControlDisplay.

Note:

Ifthealarmremains,checktherotorsensor.

9.6Typelabel

Beforecallingyourservicerepresentative,makeanoteofthespecicationandproductionnumberfrom
thetypelabel,whichcanbefoundonthesideoftheunits,nexttotheexternalconnections.

SAVEVTR300/BInstallationandService

208348

39

SystemairAB

S AVE VTR3 0 0

1670 W

220/240V~

5A 50 /60 Hz

IP2 418 46 W

2x8 8WM

M

Se rial.no : 12 34 56 /654 321-0 00 1/1 30 117

1

2

3

4

5

Fig.14Typelabel

PositionDescription

1

Productcode(productspecication)

2Productitemnumber

3Productionordernumber

4

5

Consecutivenumber

Productiondate(YY .MM.DD)

SAVEVTR300/BInstallationandService

208348

40

SystemairAB

SAVEVTR300/BInstallationandService

208348

41

SystemairAB

lastpage

SystemairABreservestherighttomakechangesandimprovementstothecontents

ofthismanualwithoutpriornotice.

SystemairAB

Industrivägen3

SE-73930Skinnskatteberg,Sweden

Phone[phone]

Fax[phone]

www.systemair.com

208348