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r.3.3Bagfilters
Releasethebagfiltercellsbyactivatingthehandlesandpulloutthefiltercells oftheunitcasing.Theframe
profilesaretobecleanedandallsealschecked fordamage.Thehandlesandlockingguiderailsarealsoto
be
checked
toensurethattheycanoperate
unobstructed.
Thenewfilterbagsmustbepushedcarefully
intotheunitinordertoensurethattheyaresealedproperly.Thevariousfiltersizesshouldbeplacedinan
ordercorrespondingtothewayinwhichtheunitisdesigned, andthefiltersmusthaveverticalbags.
r.3.4Panelfilters
The
filtercellguiderailsareto becleanedbefor efittingthenewfilters.
r.4Otherfunctionstomaintain
r.4.1Theunit
Theunitshouldbecleanedonceayearwhenoperatingwithnormalairqualityforcomfort ventilationwith
nospecialhygienerequire ments.
To cleantheunit,dryitoffwithadrycloth,orusewatermixedwitha
non‐
corrosivecleaningmedium.
Anycorr osioni.e.atthefiltersshouldbecleanedoffimmediately,andthesurfacetreated.
Inspecialoperatingconditions,wheretheairis
aggressive
orveryhumid,forexample,orwherethereare
specialhygienerequirements,theunitshallbecleanedmorefrequentlyasrequired.
Cleaning
mediumandmethodshouldbeadapted to the
relevant
conditions.Anycorrosionshouldbe
cleanedoffimmediately,andthesurfacetreated.
Closingmechanismsaretobelubricatedatleastonceayear.Syntheticdoor hingesareservicefree.Seals
aroundinspectiondoorsare
to
becleanedatleastonceayearandareto becheckedforleakage.
Itisrecommendedtotreatthesealswithamoisturerepellentagent.Connectingpiecesfortheunit
sections,includingtheDisc‐Locktypes,are
to
becheckedfortightnessatleastonceayear.
Allsealsaretobeinspectedatleastonceayearandareto berepairedifnecessary.
Grillesforairintakeandexhaustairoutletareto becleanedatleastonceayearto preventblockage.