USER MANUAL DV WITHOUT CONTROLLER VERSION 1.01.13 90925371

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r.4.2Dampers
Rubbersealsbetweenthedamper
bla desthemselves  andbetweenthe dam perbladesandtheframeare
tobecheckedonceayear.Thesesealsarenotto belubricatedortreatedinanyotherway.
Eachdamperbladeisconnected byapivotingsystem.Thesteelrodsandbrassbushesdo not r equire
lubrication
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Thedamperbladesarefittedwithsyntheticbearingsrequiringnolubrication.Air‐tightnessofthedamper,
whenthedampermotor isintheclosedposition,mustbevisuallycheckedonceayear.Thedampermotor
istobeadjustedifthedamperdoesnotclosetightly.
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r.4.3
RotaryheatexchangerDVC
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r.4.3.1Rotor
Therotoristobecheckedatleastonceayeartoensurethatitcanturnfreelyandeasily.Thiscanbedone
byremovingthebeltdriveatthemotorandthenturningtherotormanuallywitha
handontheperipheral
rotorcasing.Atthesametimethebrushsealsaretobecheckedfordamage.Thebearingsarefactory
lubricatedanddonotrequireanyservicelubrication.Duringoperationtherotorcanbecomedirty.The
rotorcanbecleanedbyblowingthroughwithcompressedair.
To 
easeinspectionandservicethe r otor canbepulledoutofthesizes10,15,20,25og30.
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