USER MANUAL DV WITH CONTROLLER VERSION 1.01.13 90925372

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55
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r.3.Filters–alwaysreplacefilterswithnewfilterswiththesamecharacteristicstomaintainSFP
value
Filtersinsupplyairandinextractairalwayshavethesamesizesofframesandthenumberoffiltersfor
supplyairandextractairarealwaysthesame.REMEMBERtoorderfiltersforsupplyairaswellasfor
extractair.
Tomaintainthefactory‐calculatedSFPvaluesfor
theair‐handlingunit,itisveryimportantthatfilterswith
thesamecharacteristicsforstartpressureaswellaslifetimereplacefactory‐mountedfilters.
ToachievethemostfavourableSFPvalues,thefactory‐mountedfiltersrepresentthelowestachievable
startpressureaswellasthelongestachievablelifetime.If
otherfilterswithhigherstartpressureand
shorterlifetimereplacethefactory‐mountedfilters,theuserwillexperiencesmallerairflowand/or
consumptionofmoreelectricity,andtheSFPvvaluecalculatedbySystemairaccordingtotheEurovent
certificationwillnotbeachieved.PoorSFPvvalueswillbedetectedbytestsaccordingto
commissioning
standards,DGNB,LEEDorBREEAMsustainabilitystandardsandlocallydefinedperformancestandards(the
SFPviswithnewcleanfilters).
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FilterframeforbagfiltersmustbeofNON‐PVCplastictoensuresafedisposalbyincineration.
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Foreachindividualairhandlingunityouwillfindthedataforthefactory‐
mountedfiltersinAnnex2thatis
alwaysprovidedinacoverplacedinsidetheairhandlingunitwhentheairhandlingunitisdeliveredtothe
finalsite.Annex2isalsoalwaysavailablefromSystemairifyoucaninformusoftheproductionnumberof
theairhandlingunit.
Theproductionnumberisalwaysprintedontheso‐calledmachinecardthatis
attachedtotheunit.Youwillfindanexampleofthismachinecardinsectio nd.2.1ofthismanual.
Thefactory‐mountedfilterscomplywithindoorairqualitydemandsofcustomersandwiththeSFPvalues
accordingtolocallegislation.
Theseairhandlingunitsareavailablewithfiltersthatcomplywiththebelow‐mentionedfilterclasses:
‐ G4
‐ M5
‐ M6
‐ F7
‐ F7CityFlo
‐ F8
‐ F9
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