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l.9HeatpumpunitstypeDVU
l.9.1Riskofhightemperature
Hazards/dangerousarea:
Condenserbatteriesandpipescanachievetemperatureof60degreeCelsius.
Dangerousincident:
VurderetudfraISO13732‐1:2006,dererumiddelbartikkerisikoforforbrændinger.(berøringstid2,5sek).
Claimforreductionofdanger:
No.
l.9.2Riskcausedbylightningstrike
Hazards/dangerousarea:
Lightningstrikeclosetothemachine.
Dangerousincident:
Lightningstrikecancreateflashoverbetweenphasesandconductiveparts.Thiscancausefireorthe
overvoltagecanmakeinjuryonpersons.
Claimforreductionofdanger:
Installerandusermustbeawareofthefactthatlightningmakesariskthatrequiresinstallationof
overvoltageprotectiondevicestoleadthelightningovervoltagetoanearthleadonasafeway.Theneed
forovervoltageprotectiondevicesdependonwheretheunitisplacedinandonthe
building.
Installerandusermusttakecareofthisaccordingtolocalstatutoryrequirements.Overvoltageprotection
devicesarealsodescribedinsectioni.3.1ofthismanual.
m.Instructionsontheprotectivemeasurestobetakenbyallservice
techniciansduringrepairandmaintenance
Usethebelow‐mentionedpersonalprotectiveequipmentformaintenance:
Cut‐resistantglovesforprotectionagainstinjuryfromsharpmetalplateedges.UseCE‐marked
glovesforthispurpose.
Helmet
Particulaterespirator–maintenancefreeincludingfoamface‐sealandadjustablepre‐threaded
headbands–forreplacingfilters.
Padlockforlockingtheautomaticcircuitbreakersinoffposition
Permanentmagnetmotor.Theshaftmustbeblockedduringrepairsandmaintenanceofthe
electricsystem(themotorgenerateselectricitybyrotation–forexamplethatthewindand
thermicdrivesthefan/motor).
Lightinginsidetheunits.According
tothelatestinterpretationsoftheMachineryDirectivebythe
authoritiessufficientlightinginsidetheunitsismandatory.
Toolstoblocktheimpellerduringrepairsandmaintenanceifstackeffect–alsocalledchimney
effect–intheductscreateairflowsthatdrivestheimpellersbyturnedoffmotors
n.Theessentialcharacteristicsoftoolswhichmaybefittedtothe
machinery
ThesubjectintheMachineryDirectiveabouttoolsonthemachinedoesnotexistfortheDVairhandling
units,becausethosetoolsdoesnotexist.