USER MANUAL DV WITH CONTROLLER VERSION 1.01.13 90925372

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r.5.6HeatingcoilDVH,coolingcoilDVKandchangeovercoilDVHK
Afteranextendedrunningperiod(normallyafewyears
) dust particlescanaccumulateonthesurfaceofthe
coil.Thiscanreducetheefficiencyofthecoil.Cleaningmustbecarried
out withtheutmost careto ensure
thatthecoilfinsarenotdamaged.Thepipingsystemmustbeventedonceayearasairinthesystemcan
significantlyreducethecapacityofthecoil.
r.5.6.1Heatingbattery
Checkthatthefrostprotectionsystemisfullyoperational.Abatterymayburst
duetofrostifthefrost
protectionsystemisnotoperational.
r.5.6.2Coolingbattery
Onceayearcleanthedriptraybeneaththecoolingcoil,aswellasthedrainandthewater
trap. Takecare
thatthatthereissufficientwaterinthewatertrap.Ifadropleteliminatorhasbeenfitted
to thecooling
coil,thismust be
checked onceayearandcleanedifnecessary.
r.5.6.3Electericheatingbattery
Checkthatthebuilt‐insafetythermostatwithanautomaticresetfunctionandtheoverheatthermostat
withmanualresettingarefullyoperational. 
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r.5.7PlugfansDVE
Dustcanaccumulateonthefanimpellerwhichcancauseimbalanceandvibrations.Thefanimpellermust
thereforebecheckedonceayearandcleaned,ifnecessary.Anti‐vibrationmountsand
flexible connec tions
shouldbecheckedatthesametime.Iftheanti‐vibrationmountsare
dama gedinanywaytheymustbe
replaced.
r.5.7.1Motor
Themotor are
usually fittedwithfactorylubricatedbearingswhichrequirenofurtherlubrication.
Largermotorscanbefittedwithgreasingnipplesandbearingswhichrequireregularlubrication.
Lubricatingthesetypesofbearingsmustbecarried
out accordingtothe manufactur er ’ s  instruc tions.
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