Wolf AHU TE - Maintenance - Components; Cleaning Heat Exchangers, Filters, and Scrubbers

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3064058_201610
AHU TE
AHUW TE
Maintenance
Dampers
Never oil dampers. Oil could damage the plastic used. In that case the damper function
would no longer be ensured.
Blow the dampers clean with compressed air; no other maintenance is required.
Heatexchanger
(heating coil / cooling coil / KGX)
Check periodically for contamination and clean as necessary.
Clean the heat exchanger by:
- Vacuum extraction
- Blowing down with compressed air
- Spraying with water or steam
Ensure that the air/water/steam pressure for cleaning is not in excess of 5 bar, otherwise
there is a risk of mechanical damage to components.
Check the condensate drain.
Openthesiphon,cleanitandrellit.
Use a commercially available descaling agent to clean the drop-eliminator sections.
Note
Scrubber
Regularly clean the scrubber and the mist eliminator. Cleaning intervals are subject to
operating method, air condition and water quality.
Maintenance involves draining the tray and rinsing it with clean water or a high pressure
cleaner.
Spraypipeworkandnozzleassemblyonlywithreducedwaterpressure.
Parts could be damaged by a jet of water at excessive pressure.
Commercially available descaling agents can be used.
Never use foaming cleansers.
The scrubber pump is maintenance free.
However,whencleaningthescrubberitisadvisabletoushthepumpandthepipework
with clean water.
If the scrubber is out of use for a longer period of time, start the pump weekly and allow it
torunforapprox.5minutestopreventthebearingsfromseizing(neverrunthepumpdry).
Note
Note
Filter
Wear protective clothes, protective gloves and a respirator when exchanging the
lter!
Contaminatedltersaredangeroustohumanhealth.Contactwithlterdustcan
cause allergic reactions of the skin, eyes and respiratory organs
Iflterinsertsrequirecleaningorreplacement,opentheinspectiondoor
and pull them to the side and out of the casing.
CategoryG4syntheticbreltermatsusedaslterinsertscanberegenerated.The
mats can be tapped clean, blown clean, vacuum cleaned or washed out in a solution
ofcommerciallyavailablenedetergentandlukewarmwater.Never wring out the
mats.
Baglterscannotberegenerated.Replacethebaglterswhenthepressuredrop
exceeds the permissible maximum because of clogging.
Whenbaglterinsertsrequirereplacement,opentheinspectiondoorandreleasethe
quick action clamp, then pull the bag to the side and out of the casing.
(pullquickactionclampwithatool=removelter;
(pushquickactionclampwithatool=ltertensioned)
Note: Pulltheswallowtailsealsoffthespentltersandpushthemintopositionon
thereplacementlters.Thisisimportanttoensurethatthenewltersarereinstalled
correctly.
Activatedcharcoallter
Replacetheactivatedcharcoallters(cartridges)iftheyaresaturated(expiryofthe
speciedoperatingtime).
The cartridges are fastened with special bolts (bayonet connection). Rotate the cart-
ridges and pull them towards you out of the frame. When exchanging the activated
charcoalltercartridges,thepre-ltersshouldalsoberenewedinordertoachieve
optimumservicelivesoftheactivatedcharcoallters.
Quick- action
clamp
Baglter
Operator side