USER MANUAL DV WITH CONTROLLER VERSION 1.01.13 90925372

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r.5.3RotaryheatexchangerDVC
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r.5.3.1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.
r.5.3.2Motorandbeltdrive
Thebearingsarefactorylubricatedanddonotrequireanyservicelubrication.Thebeltdriveistobe
checkedforcorrecttightnessandthatitisundamaged.OnsmallerAHU,therotoris
fittedwithanelastic
beltdriveandsuppliedwithareservebeltontherotor.Thisbeltdrivedoesnotrequireserviceandcannot
beshortened.Anewbeltcanbefittedusingspecialisttools.OnlargerheatexchangerstherotorhasaV‐
beltwithabeltconnector.If
thebeltisnolongertight,itmustbe shortenedtoalengthwhichenablesthe
motorbaseframetighteningspringtoholdthebelttight.Ifnewscrewsareusedforthebeltconnector,
theymustnothavealengthwhichexceedsthethicknessofthebeltandconnector.Remove
theexcess,if
any,withafile.
r.5.4Crossflowandcounterflowexchanger
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Onceayeartheedgesoftheheatexchangerplatesaretobechecked for
cleanliness anddamage.