SystemAir Danvent DV - L.6.2 Risk Caused by the Execution of Filter Change; L.7 Plug Fans Type DVE; L.7.1 Risk Caused by Lightning Strike; L.7.2. Risk Caused by Permanent Magnet Motor

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l.6.2Riskcausedbytheexecutionoffilterchange
Hazards/dangerousarea:
Filterpanelsandfilterbags
Dangerousincident:
Tobreatheinparticlesthatisharmfultothehealth.
Claimforreductionofdanger:
Useofparticulaterespirator–maintenancefreeincludingfoamface‐sealandadjustablepre‐thread ed
headbands(sameparticulaterespiratorasrecommendedforcleaningofattenuators.
l.7PlugfanstypeDVE
l.7.1Riskcausedbylightningstrike
Hazards/dangerousarea:
Lightningstrikeclosetothemachine.
Dangerousincident:
Lightningstrikecancreateflashoverbetweenphasesandconductiveparts.Thiscancausefireorthe
overvoltagecanmakeinjuryonpersons
Claimforreductionofdanger:
Installerandusermustbeawareofthefactthatlightningmakesariskthatrequiresinstallationof
overvoltageprotectiondevicestoleadthelightningovervoltagetoanearthleadonasafeway.Theneed
forovervoltageprotectiondevicesdependonwheretheunitisplacedinandonthe
building.
Installerandusermusttakecareofthisaccordingtolocalstatutoryrequirements.Overvoltageprotection
devicesarealsodescribedinsectioni.3.3.3ofthismanual.
l.7.2.Riskcausedbypermanentmagnetmotor
Hazards/dangerousarea:
Rotationoftheshaftgenerateselectricity.Thisdangerisalwaysvisualizedbyayellowwarninglabelonthe
inspectiondoorwherepermanentmagnetmotorsareinstalled.
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Dangerousincident:
Personstouchingconductivepartsgetelectricshock,burns,heartflickerandsoon.
Claimforreductionofdanger:
Byinstallationorrepairsofconductivecomponents,theshaftmustbeblockedtopreventanyrotation.
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l.7.3Riskofrotatingimpellercausedbystackeffect(chimneyeffect).
Hazards/dangerousarea:
Onspecialoccasionsstackeffect–alsocalledchimneyeffect–intheductscreateairflowsthatdrivesthe
impellersbyturnedoffmotors.
Dangerousincident:
Injuryoffingers,handsandarms.
Claimforreductionofdanger:
Eliminatethisairflowforsupplyairand exhaustairbydamperswithspringreturnmotorsforautomatic
closingofthedampersbyturnedofffanmotorsandbypowerfailure.