USER MANUAL DV WITHOUT CONTROLLER VERSION 1.01.13 90925371
42
r.2Recommendedmaintenanceintervals
Function Maintenance Number
peryear
Unitcasing Cleaningoftheunitcasing. 1
Controlofrubbersealsondoorsandbetweensections. 1
Filters Controloffilters.
Changethefilterswhenmaximumpressureisexceeded.To
maintainthecalculatedSFPvvalues,filterswithsimilar
performancemustreplacethefactory‐mountedfilters.Start
pressuresoffactory‐mountedfiltersappearfrom.Annex2that
isalwaysprovidedinacoverplacedinsidetheairhandlingunit
whentheairhandlingunitisdeliveredtothefinalsite.Annex2
isalsoalwaysavailablefromSystemairifyoucaninformusof
theproductionnumberoftheairhandlingunit.Forhealth
reasons,thefiltersmust
alwaysbechangedtwoyearsafter
installationintheunit.
1
Controlofrubberseals.Controlofthesystemwithlateral
lockingrailsandhandlesonTIMEandDV10–DV150.Controlof
thefilterbankframeswithfastenersonDV190andDV240.
1
Testoffilterguards 1
Fans Cleaningofallparts. 1
Checkmotorsandbearings 1
Checkthattheimpellersarerotatingwithoutdissonance. 1
Checkthatanti‐vibrationmountsareintact. 1
Checkthattheunitisoperationwithoutvibrationsafterthe
cleaning,overhaulandmaintenance.
1
Rotaryheat
exchanger
Checkthatleakageanddirtaccumulationisinsignificant
Standardrotorsmayonlybecleanedbygentlevacuum
cleaningorbygentleblowingofcompressedair.Rotorsmay
onlybecleanedbyhigh‐pressurewaterifitisoneofthevery
fewspecialrotorsthatareorderedand
builtforthis.
1
Checkthattherotorcanturnfreelyandeasilymanuallywitha
handwhenthebeltisremovedfromthedrive
1
Checkbelttensionandreplacebeltincaseofvisiblewear. 1
Plateheat
exchanger
Checkbypassfunctionandsequenceforde‐icing 1
Run‐aroundheat
exchanger
Checktheexchangerfunctionandtestthefrostprotection.
Theglycolmustbewithoutadditivesandmustnotbeauto
glycol.
Coilsmayonlybecleanedbygentlevacuumcleaningorby
gentleblowingofcompressedair.Coilsmayonlybecleanedby
high‐pressurewaterif
itisoneoftheveryfewspecialbatteries
thatareorderedandbuiltforthis.
1