Document no. 3062049_201206 Subjecttotechnicalmodifications GB

Installation andmaintenance instructions

Air-handling unit KG/KGW Top (Translation of the original)

Wolf GmbH · Postfach 1380 · D-84048 Mainburg · Tel. +49 8751/74-0 · Fax +49 8751/741600 · Internet: www.wolf-heiztechnik.de

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KG TopContentsStandards .......................................................................................................3

Symbols/Safetyinstructions .........................................................................4

Delivery/Handling .........................................................................................5

Installationinstructions ............................................................................6-15

Powerconnection ..................................................................................16-17

Commissioning ......................................................................................18-21

Maintenance ..........................................................................................22-24

Frostprotection.............................................................................................25

Shut-down ....................................................................................................26

Fire/End-of-lifedisposal ..............................................................................26

Checklist .....................................................................................................27

For type of device, serial number and order number, see type plate on the equipment.

Order-related device specifications such as weights, dimensions, sound data, spare parts, energy data etc. are to be taken from the order data sheets.

Original Wolf spare parts can be procured at short notice, stating the order number (on the type plate), by fax to 0049 (0)8751 / 74-1574.

33062049_201206

KG TopThefollowingstandardsandregulationsapplytotheKG/KGWTopseriesair-handlingunits:

- Machinedirective2006/42/EU

- Lowvoltagedirective2006/95/EU

- EMCdirective2004/108/EU

- Pressurevesseldirective97/23/EU

- DINENISO Safetyofmachinery;designguidelines 12100

- DINENISO13857 Safetyofmachinery;safetydistances

- DINEN349 Safetyofmachinery;minimumclearances

- DINEN953 Safetyofmachinery–Guards–

- DINEN1886 Ventilationforbuildings-centralair-handlingunits

- DINISO1940/1 Mechanicalvibration;balancequality

- DINEN60335-1 Safetyofelectricalappliancesfordomesticuse andsimilarpurposes

- DINEN13053 Ventilationofbuildings-centralventilationappliances Section6 Performancecharacteristicsforappliances,components

andassemblies

- VDMA24167 Fans;safetyrequirements

- RLTGuideline01

- VDI3803 Technicalrequirementsforventilationappliances Section5

Thefollowingstandardsandregulationsapplytotheinstallation:

- DINVDE0100 Requirementsforhighvoltageinstallationsupto1000V

- DINVDE0105 Operationofhighvoltageinstallations

- DINVDE0701-0702 Repair,modificationandtestingofelectricalappliances

Standards

Standards

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KG TopGeneral These installation andmaintenance instructionsapply only toWOLFKG/KGWTop

seriesair-handlingunits.Eachpersontaskedwithinstalling,commissioningormaintainingtheequipmentmustreadthroughtheseinstructionsbeforecommencingwork.Compliancewiththeseinstructionsismandatory.Onlysuitablytrainedandqualifiedpersonnelarepermittedtoundertakeinstallation,commissioningandmaintenancework.Keep the installation and maintenance instructions in a safe place for futurereference.Non-compliancewith the installation andmaintenance instructions voids allWOLFwarranties.

Symbols The following symbols and warnings are used in these installation and maintenance instructions. These important instructions apply to the protection of personnel and to technical operational safety.

"Safety instruction" identifies instructions that must be precisely complied with in order to avoid endangering or injuring persons and to prevent the risk of damage to the equipment.Electric shock hazard due to electrically live components.Note: Switch OFF the ON/OFF switch before removing the casing.Never attempt to touch electrical components or contacts while the master switch is ON. Electric shock hazard with risks to health or fatal injury.Terminals remain live even after the ON/OFF switch has been switched OFF."Note" identifies technical instructions that must be complied with to prevent equipment damage and malfunctions.In addition to the installation and maintenance instructions, labels affixed to the equipment bear information. Compliance with these, too, is mandatory.

Note

- Thepersonstaskedwithinstallation,commissioning,maintenanceandoperationoftheair-handlingunitmustbeadequatelyqualifiedandmusthavereceivedsuitableinstruction.

- Onlytrainedandqualifiedelectriciansarepermittedtoundertakeworkontheelectricalsystem.

- AllelectricalworkmustbeincompliancewithVDErequirements[orlocalregulations]andtheregulationsofthelocalpowersupplyutility.

- Theair-handlingunitmustalwaysbeoperatedwithintherangeofoperatingparametersstipulatedinthetechnicaldocumentationsuppliedbyWOLF.

- Correctuseoftheair-handlingunitmeansexclusivelytheuseforventilationpurposes. Airistheonlymediumthatcanbehandledbytheequipment. The air handled by the equipment must not contain health-endangering,

flammable, explosive, aggressive, corrosive or otherwise hazardous constituents, which would otherwise be distributed by the ducting system or the building and can have a health-impairing or even fatal effect on personnel, animals or plants living in the building.

(A special-rating air-handling unit with a VDMA 24169/1 "Ex" rating can be used to handle air mixed with explosive gases, vapours or mists in accordance with the Ex zone 2 requirements.)

- Never remove, jumper, bypass or by any othermeans render inoperative safetydevicesandmonitoringdevices.

- Neveroperate theair-handlingunitunless it is in fullworkingorder.Malfunctionsanddamagethat impairorcould impairsafetymustberepaired immediatelyandprofessionally.

- Intheeventofafiretheair-handlingunitmustshutdownautomaticallybysuitablemeanssuchasafireprotectiondamper(installedonsite),asotherwisehazardoussubstancescanbetransportedintotheroomsdownstreamoftheair-handlingunit.

- UseonlygenuineWOLFsparepartstoreplacedamagedorfaultycomponentsandsubassemblies.

Safety instructions

Symbols / Safety instructions

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KG TopDelivery / Handling

Final location AlwaysinstallKGair-handlingunitsinroomswherefrostcannotoccur.Iftheoccurrenceoffrostatthefinallocationcannotberuledout,adoptsuitablemeasuresto prevent water-containing components from freezing. If an outside thermostat isinstalledensureitisadequatelyinsulatedtopreventtheair-handlingunitfromshuttingdowninadvertently(seefrostprotectionmeasures,page25).

Note

Space requirements Makesureaclearspaceequaltoatleastthewidthoftheequipmentunitsisavailableontheoperatorside;thisistheminimumspacenecessaryforinstallation,operationandmaintenance(seethetablebelow).

Footprintofspacerequiredforinstallation,operationandmaintenance: Fansection 0.8 x appliancewidth Coolingcoil,heatingcoil,KVS 1 x appliancewidth+250mm FiltersectionuptoKG96 1 x appliancewidth fromKG130 0.5 x appliancewidth

Inback-to-backconfigurationswithside-by-sideunits,leaveclearancesasstatedaboveonbothsidesforinstallation,operationandmaintenance.

Install units that requireasiphon (scrubber,humidifier, coolingcoil, plate-typeheatexchanger,misteliminator)insuchawayastoensurecorrectinstallationandoperationofthesiphon(makeadequateprovisionforthefoundationheight).

Itisadvisabletoinstallawaterprooffoundationforunitswithhumidifiersand/orcoolingcoilsinstalledaboveroomscontainingmoisture-sensitiveequipment(e.g.ITrooms,etc.).

Delivery KGTopair-handlingunitsaredeliveredtositeastransportablesubassemblies.Onreceiptoftheincominggoods,checktheunitorcomponentstoensurenodamagehasoccurredintransit.Ifdamageisevidentorifthereisasuspicionthatdamagemighthaveoccurred,therecipientmustmakeanotetothiseffectonthefreightpapersandhavethiscountersignedbythecarrier.NotifyWOLFimmediatelyofsuchcircumstances.

Alwaystransporttheequipmentupright.

Exception:Plate-typeheatexchangers(subjecttotypeandsize)andheatwheelheatexchangersarelaidflat(turned90°)fortransportation.

Otherwisetheinternalcomponentswillsufferdamageandthiscanresultinmalfunctions.

Handletheapplianceswithslings.

Tallappliancesonasmallfootprint(e.g.RWT)areconnectedwithanincreasedriskoftippingoverduringunloadingandhandlingonsite.Thisrequiresadditionalmeasuresonsitetopreventtippingover(e.g.securingwithstraps).

Ifaforkliftorrollersareusedtomovetheunits,alwaysensurethattheforksorrollersarelocatedunderneaththeframesectionsatalltimes,sothatweightisneverallowedtorestonthefloorpanels.

Withliftingeyes(availableonrequest),useslingsatminimumcentresLbetweenliftingeyes.Ensurethattheslingsareofuniformlength.

Alwaysuseacraneliftingbeamtoliftapplianceswithmorethan4liftingeyes.Onnoaccountmaycladdingpanelsberemovedinordertoliftthedevice,sincethecladdingpanelsarestructurallyintegratedinthedevice'sbracingsystem.

NoteHandling

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KG TopInstallation instructions

It isessentialtoensurethatthebaseonwhichtheunitsandcomponentsaretobeassembledandinstalledislevel,horizontalandofadequateload-bearingcapacity.

Thebaseframemustbehorizontal,andthefoundationmustbelevelandhorizontal(checkwithbrowningrod).

Topreventtheinspectiondoorsfromjamming,thelowerbaseframemustmakefull-surfacecontactwiththebase;padorpointcontactisnotpermissible.

Provideapermanentlyflexiblelayerbetweentheinstallationsurfaceorfoundation/plinthandtheair-handlingunittopreventthetransmissionofstructure-bornenoisefromtheapplianceto thebuilding.Preferably, this intermediate layershould taketheformofinsulationstripsthatarepositionedlongitudinallyunderneaththeapplianceframeorunderneaththebaseframe.

NoteBase frame /plinth

KG:

Stripinsulation,onsite

Fittedbaseframe

Equipment installation Appliancesforweatherproofinstallationmustnottakeonanystaticloadoractasasubstitutefortheroofofthebuilding.

Whenassemblingandinstallingcombinedventilationandextractapplianceswithheatrecovery(KGXD,RWT),observethecorrectsequenceofassemblyand installation(seediagram).Forthis,onecompleteappliancetrainshouldalwaysbeassembled/installed completely. The second appliance should then be installed from the heatrecoveryonwards.Thisoffersthemosteffectivepreventionofalignmenterrorsandinstallationinaccuracies.

Applianceexample-topview:

Note

Note

Wheninstallinghighorperhapssmallerappliancecomponents(e.g.RWT,RWTductcomponents or standing appliance layouts with several components above eachother),securetheseduringassembly/installationagainsttippinguntiltheyarefinallyconnectedtoothercomponentsthatensurethattippingisprevented.

Requirespermanentsecuringagainsttippingover.Note

Riskoftipping

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KG TopInstallation instructionsInternal unit base frame WOLFinternalunitbaseframes(suitableonlyforinternalinstallation)arealwayssup-

pliedloose(inadvance).Baseframesdeliveredlooseareknockeddownforshippingandmustbeassembled,alignedandsecuredtothebaseonsiteinaccordancewiththeinstructionsenclosedwiththebaseframe.

Abaseframeorplinthisrequiredforair-handlingunitsinstalledasweatherproofversiontosupporttheappliancesandtheircomponents.

Theheightofthebaseframeorplinthissubjecttothelocalsnowdepth;however,itshouldbeatleast200mm.

Subjecttotheprevailingwindforce,securetheapplianceswithboltstothebaseframeorplinth(observethetransmissionofstructure-bornenoise).

Thebaseframemustbehorizontal,andthefoundationmustbelevelandhorizontal.

KGW:

Dripstrip

Sealingsystem

Insulationifrequired

Anti-vibrationmeasure

The lower base frame must make full-surface contact with the base; pad or point contact is not permissible.

WOLFbaseframes(incl.dripstrip)areeitherpermanentlyfixedtotheapplianceoraresuppliedloose(inadvance).

Baseframesdeliveredlooseareknockeddownforshippingandmustbeassembled,alignedandsecuredtothebaseonsiteinaccordancewiththeinstructionsenclosedwiththebaseframe.

Thebase-framepitchandtheappliancepitchmatchwhenapplianceswithpre-installedbaseframesaresplitforshipping.

Weatherproofair-handlingunitsrequireadripstriptopreventrainwaterfromenteringbetweentheair-handlingunitandthebaseframe.

WOLFdripstripsarealsosuppliedloosewiththeapplianceifbaseframesaresupplied(inadvance)loose.

ThedripstripisfittedwithscrewsdirectlytotheKGapplianceframeandtheappliancebaseframe.

When fitting the drip strip observe that the inspection doors and the removal of the side casing panels is not restricted in any way.

Note

Note

Spacer

Spacer

Applianceframe

Baseframe

Insulationagainstthetransmissionofstructure-bornenoise

Fixingscrewwithanti-structure-bornenoisemeasure,e.g.neoprenewasher

Dripstrip

Self-drilling/tappingscrewØ5.5x19

Self-drilling/tappingscrewØ5.5x38withsealingwasher

Spacer

Spacer

Applianceframe

Baseframe

Insulationagainstthetransmissionofstructure-bornenoise

Fixingscrewwithanti-structure-bornenoisemeasure,e.g.neoprenewasher

Dripstrip

Self-drilling/tappingscrew Ø5.5x19

Self-drilling/tappingscrewØ5.5x70withsealingwasher

Weatherproof devices may not assume any building support functions or tasks of the roof of the building (VDI 3803 5.1 / BS EN 13053 6.2).

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KG TopInstallation instructions

Shortsections of duct

Baseframe

Roof

Iftheunithasabottomdischarge/intake,installshortsectionsofductbeforeloweringtheunitontoitsfoundation.

Abase frameorplinth (heightapprox.300mm) isalwaysrequired forKGorKGWapplianceswithscrubber,becausethescrubberbottomlieslowerthantheundersideoftheremainingappliance.Therequiredheightofthebaseframedependsonthetypeofscrubberandisspecifiedseparatelyinthecourseofthedesigncalculations.

Installationsequence:Clipthespacerintothelowerholes.Securethedripstripsallaroundtheapplianceframe;securethedripstripsallaroundtheappliancebaseframe.

Dripstrip

Antivibrationinsulation

TheWOLFbaseframemustbeinsulatedandintegratedintotheroofsealingsystemonsite.Preferablytheinsulationofthebaseframeshouldbeappliedtotheinsideofthebaseframe.Thismakestheintegrationintotheroofsealsubstantiallyeasier.

WheninstallingtheKGTOPonitsownstands(KGWonanon-sitebaseframe),secureitagainstthewindload.

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KG TopInstallation instructions

TheweatherproofedKGWversionalwayshasafullyinstalledroofmadeofzinc-platedsheetsteel.Splitunitsaredeliveredtositewiththeroofsectionsprefittedtotheindividualsections.Iftheinterfaceatwhichtwounitsaresplitdoesnotlineupwiththepitchoftheroofsections,therequisitesingleroofsectionissuppliedlooseandmustbeinstalledonsiteoncetheair-handlingunithasbeenassembledandinstalled.Therequisitefastenersandsealingmaterialsaresuppliedwiththeappliance.Theliftingeyescanremainintheunitassealedinthefactory.

Roof

Useaplastic-headedmallettotapthecoverstripintoplace.Note

Packspaceofsealingstripwithsealingcompound

Sealant

Immediatelybeforeassemblingtheverticalhollowsectionswiththefloorandceilingpanels,sealthehollowsectionswiththesealantsupplied.Otherwisethewatertightnessoftheappliancecannotbeguaranteed.For this it is recommended that someof thesealant ispoured intoa flat vesselofadequatesize,andthentodipbothendsoftheverticalhollowsectionapprox.2mmdeepintothesealant.Theappliancesareassembledinreverseorder.

Appliances that can be dismantled

Theequipmentisshippedtositepreassembled.Itcanbedisassembledbeforebeingmovedintopositionandreassembledatthefinallocation.

Disassemblyentailsremovingthecasingandcarefullyremovinginternalcomponentssuchasheatingorcoolingcoil(takecarenottodamagethecomponents).Removethescrewsfromthecornersoftheframetopermitremovaloftheframe.

Undoscrews

KGTop21-380 KGTop450-1000

Hollowprofile

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KG TopInstallation instructionsConnecting units Allthesmallitemsrequiredforassemblyarepackedinsideacomponentwithinspection

door(preferablyfansection),alongwiththeaccessoriessuppliedloose.Alabelinscribed"ZubehörimGerät"(Accessoriesinside)identifiesthecomponentinquestion.

KG Top 21-380 Self-drilling/tappingscrew

X 6.3x90Mat.no.3490238KG Top 450-1000 Self-drilling/tappingscrew

X 6.3x120Mat.no.3490252

Self-drilling/tappingscrew Self-drilling/tappingscrewwithwasher

ApplianceconnectionbracketPartno.6616824

X 6.3x62Mat.no.3480031

Self-drilling/tappingscrewsApplianceconnectionbracketPartno.6616824

X8x120Mat.no.3418502

6.3x25Mat.no.34800386.3x62Mat.no.3480031

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KG TopInstallation instructionsConnecting unitswith screws

M8screwsareusedtojointhecubesunit.Theframesectionsareprovidedwithfixingelementsattheappropriatepoints.Always ensure that the individual appliance parts are pushed firmly together before fitting the M8 screws.

Fixingelements M8screw

When tightening screws and nuts, always counterhold with asecondopen-endedspanner.

If the connectors are on the outside, the units in question can be connected but under no circumstances can the assembly be moved as a single unit.

Note

Externalapplianceconnection

Tensioningstrapsmaybeusedtomaketheassemblyofthecubeunitseasier.Positiontheappliancepartsnexttoeachotherandclosethegapbetweenthemwithtensioningstraps.Thenboltthecomponentstogetherbymeansoftheconnectorssupplied.

Theindividualtransportunitscanalwaysbeliftedandtransportedwhenunitsarejoinedinternally.

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KG TopInstallation instructionsPiggyback units(air intake/exhaust air units stacked one on top of the other)

Piggybackunitssuppliedwithtopandbottomunitsseparatedmustbesecurelyconnectedonsite(aftertheunitshavebeenpositioned)andsealedtightonthewholeperimeteragainstrainwaterpenetrationbymeansofapermanentlyelasticseal(weatherproofversionKGW).UnitsaresecuredbymeansoffixingelementsandSelf-drilling/tappingscrew5,5x19ontheoutside,asshown(onsite).Therequisitenumberoffixingelementsissuppliedwiththeair-handlingunit.

Onlysecurethetopandbottomunitstogetheraftertheindividualcubesunitandthetopandbottomunitshavebeenassembled.If required, install permanently resilient sealing strips or plastic sealing profiles before lowering the top unit into position on the bottom unit.

KGW projection

KGWtopview

KGWprojection

KGW 450-1000

Projection

Self-drilling/ tappingscrew 5.5x19

Sealingtape

View A

Projection

Self-drilling/ tappingscrew 5.5x19

Sealingtape

View B, C, D

ProjectionRoof

Sealingtape

View E

KGW 21-380

Projection

Self-drilling/ tappingscrew 5.5x19

Sealingtape

View A

ProjectionRoof

Self-drilling/ tappingscrew 5.5x19

Sealingtape

Sealingtape

View EView B, C, D

Self-drilling/ tappingscrew 5.5x19

Sealingtape

Projection

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KG TopInstallation instructions

Flexible connections Removethetransportationlockingdevices.Duringinstallationensurethattheconnectingflangesarenomorethan100mmaparttoensurethattheflexibleconnectionshavetheirfullrangeofmovement.It may be necessary to fully insulate the flexible connections on site against acoustic emissions and condensation.

Ensurethatthefanshaftishorizontalinitsbearings.Iftheshaftisnotperfectlyhorizontaltheballbearingwillsufferdamageandservicelifewillbesubstantiallyreduced.

Removethetransportationlockingdevicesfromfansmountedonspring-loadedvibrationdampers.

NoteFan section

Transportationlockingdevices

Theheatexchangers(coolingcoil,heatingcoil)operateonthecountercurrentprinciple.Thismeansthattheheattransfermediumorrefrigerantmovesintheoppositedirectiontotheairflow.Consequently,theflowconnectionforthemediumisalwaysontheairdischargesideoftheheatexchanger.

Connecttheheatexchangerssothatnomechanicalstressesandstrainsaretransmittedfromthepipeworktotheheatexchangers.Itisalsoimportanttoensurethatthetransmissionofvibrationsandlongitudinalexpansionandcontractionbetweentheair-handlingunitandthepipeworkiseffectivelyprevented.Ensurethattheconnectinglinesneverobstructaccesstotheotherpartsoftheunit(fan,filter,scrubber,etc.).

For theheatexchanger (withflange) it is recommended tousebends tomake theconnections.Thisconfigurationwillensurethattheheatexchangerandthemisteliminatorcanbeextractedtoonesideforsubsequentcleaning.

Alwaysinstallsteamregisterssothatthesteaminletisalwaysatthetop(largediameterconnector)andthecondensatedrainisalwaysatthebottom.

Whenconnecting theflowand return lines,alwaysuseawrenchofcorrectsize tocounterholdthethreadedconnectorsoftheheatexchanger.Otherwisethemechanicalforcecouldseparatetheheaderfromtheheatexchanger.Damageofthisnaturewouldeffectivelyruintheheatexchanger.

Itisimportanttoensurethatfacilitiesforventinganddrainingareinstalledonsite.

Alwaysconnectasiphontothecondensatedrainconnectorofthecoolingcoildriptray(see"Siphon").

KGW: Iftheheatexchangerconnectionsareontheinside,runthepipeworkthroughtheemptysectionprovidedforthepurposedownstreamoftheheatexchanger.Makeadequateprovisionforventing.

Makesuitableaperturesthroughtheremovablebasetoaccommodatethepipes.Sealtheseaperturesbysuitablemeansafterinsulatingthepipework.

Theweatherproofprojectionisnotthermallyinsulated.Consequently, the pipes and valves must be adequately insulated and, if necessary, heated on site.

If an inverter is used for operation it is advisable to provide external ventilation in summer to prevent overheating (max. permissible temperature 45 °C).

Provide suitable apertures through the removable base of the projection to accommodate the pipes.

Note

Note

Heat exchanger

Removableheaterexchanger

Flange

Removablemisteliminator

Emptysection

Flow

FlowReturn

Return

Directionofairflow Directionofairflow

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KG TopInstallation instructionsWheninstallingthescrubbertakecarenottopermitdirtorotherforeignmattertoenterthescrubber,asotherwise thepump impellerwill beobstructedand thiswill eithersignificantlyimpairpumpoperationorresultinitsdestruction.

Givennormalrequirements,thewaterforthescrubbermustcomplyatleastwiththeminimumqualityspecifiedbelow:

Appearance clear,colourless,nosedimentpHvalue 7to8.5Totalsaltcontent <800 g/m3

Electr.conductivity <100 mS/m(at20°C)Calciumioncontent >0.5 mol/m3 Carbonatehardness <4.0 °dCarbonatehardnesswithhardnessstabilizers <20 °dChloridecontent <180 g/m3

Sulphatecontent <290 g/m3

KMnO4consumption <50 g/m3

Germinationindex <1000ml-1

Ifthescrubberisconnectedtothemainswatersystem,ensurecompliancewithDIN1988[orlocalregulations].

NoteScrubber section

Ifthesiphonisprovidedonsite,calculatetheheightofthesiphoninaccordancewiththesketchshownhere.TheeffectivesiphonheightH(mm)mustbegreaterthanthemax.negativeorpositivepressure(inPa)insidetheair-handlingunit(1mmWS=10Pa).ThedifferenceinheightbetweentheunitoutletandthesiphonoverflowshouldalsobeequaltoH(inmm).

Double siphon(on site)

Ball siphon

h

Neverconnectthesiphondischargedirectlytothewastewatersystem.Instead,leavetheendofthedischargeopensothatitcandrainfreely.Longdischargelinesmustbeventedtopreventcondensatefrombackingupinthepipe(provideanadditionalopeninginthesiphondischargepipe).

Topermitreliabledrainingofcondensate,itisimportanttoconnectaballsiphontothecondensatedrainconnectorfromthedraintrayforthecoolingcoil/direct-expansionevaporator,plate-typeheatexchangerandoutsideairintaketrayoftheKGW.Alsoobservethateachcondensatedrainconnectormusthaveasiphonconnectedtoit.Itisnotpermissibletoruntwoormorecondensatedrainconnectorsintoasharedsiphon.Theballsiphonisself-filling.Afloatingballpreventsairbeinginductedwhenthesystemisdry,whichmeansthatcondensateinitiallyhastofillthesiphonasitisproduced.Theballalsoactsasanon-returnvalveandpreventsthesiphonfromsuckingdry.

It isvery important toensure that the foundation is of adequate height topermitinstallationofthesiphon.

TheeffectivesiphonheightH(mm)mustbegreaterthanthemax.negativeorpositivepressureatthecondensateconnector(1mmWS=10Pa).

H = 1.5 x p (mm water column) + 50 mm (min.)

p = Negativeorpositivepressureinmmofwatercolumnasperappliancedesign50mm(watercolumn) = Reserve(toallowfordesigninaccuracies,evaporation)1.5 = Additionalsafetyfactor

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KG TopInstallation instructionsIntake / discharge hood

Sidepanels(raingutterexternally)

Topsection

Screws

Assemblethesidepanelsandtopsectionasshown,usingthescrewssupplied.

Foraconfigurationwithtwoorthreeintake/dischargehoodsoneabovetheother,theupperhoodoverlapsthelowerhood.

Overlap

VersionsKG Top 21 - 210 KG Top 270 - 380

KG Top 680KG Top 450 - 600

KG Top 850 - 1000KG Top 680 - 1000

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KG TopPower connectionPower connection Thepowerconnectionmustonlybecarriedoutbytrained,qualifiedelectricianstoa

standardcompliantwiththeapplicableregulations(VDE,localpowerutility,etc.).

If the intake air / exhaust air fan shuts down or fails, all control valves must automatically close and the DHW/cold water and scrubber pumps must switch off.

Useonlycontrolvalvesthatclosewhende-energisedandantifreezethermostatswithoutdisabledreset,asotherwisecomponentswillcontinuetooperateevenifthesystemshutsdown.Undersuchcircumstancesthebuilt-insafetyfeatureswillnotbeabletofunctionasintended(e.g.noassuranceofeffectivefrostprotection).

Installalockablerepairswitchforeachdrivemotortoensurethattheair-handlingunitcanbesafelyshutdown.

Oncethepowerconnectionhasbeencompleted,theinstallationmustbesafety-testedinaccordancewithVDE0701part1andVDE0700part500tocheckitsfullworkingorderandthatthesafetydevicesarefullyoperational.

Useonlyelectricmotorsdesignedtodrivefans.

It is absolutely essential to wire the motor in accordance with the connection schematic in the terminal box. A motor that is wired incorrectly will be unable to develop its rated output and may be destroyed.

UseaPTCthermistortriggerforeachmotorwithPTCthermistor,aninterlockcontactorforeachmotorwiththermocontactsandathermalovercurrentrelayforeachmotorwithoutPTCthermistororthermistorcontacts.

Useequipotentialbondingandearthstrapstoensuretheprotectiveconductorconnectionbetweentheair-handlingunitandtheductsandbetweentheheatexchangersandthepipeworkinstalledonsite.

Note

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KG TopPower connectionWiring for single speed

Motorsupto2.2kWaregenerallystartedDOL,from3kWasinstar-deltaformation.Windingwiringdiagram

Terminalblockwiring

Δwiring Ywiring

Y/Δswitch

Thewindingcoresareterminatedatthe Y/Δswitch

Wiring for two speeds

(2separatewindings)

Wiringfor1000/1500rpmor750/1000rpm,forexample

Lowspeed Highspeed

Contactorcontrol Polechangeoverswitch

Wiring for 2 speeds in ratio 1:2

(windingasDahlanderpolechangingcircuit)

Wiringfor1500/3000rpmor750/1500rpm,forexample

Lowspeed Highspeed

Contactorcontrol Polechangeoverswitch

UseWindingsforsteppedoutputinaccordancewithatorquesequenceforfandrive

Wiring for three speeds

(2separatewindings,1asDahlanderpolechangingcircuit)

Wiringforfandrives500/1000/1500rpmor500/1000rpmasDahlanderpolechangingcircuit.

Winding

Contactorcontrol Polechangeoverswitch

or

Wiring for three speeds

(2separatewindings,1asDahlanderpolechangingcircuit)

Wiringforfandrives750/1000/1500rpmor750/1500rpmasDahlanderpolechangingcircuit.

Contactorcontrol Polechangeoverswitch

Winding

or

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KG Top

- +

Pw

CommissioningAsrequiredbyDIN/EN1886,toolsarenecessaryforopeningtheunit.Alwayswaitforthefantorundowntoacompletestandstillbeforeopeninginspectiondoors.Thepartialvacuuminsidetheunitcoulddrawinlooseorslackpartswhenthedoorisopened,whichcouldcauseseveredamagetothefan.Severeorfatalinjurycouldresultifthevacuumsucksitemsofclothinginside.

Ensurethatsafetydevicessuchasbeltanddoorscreensandallmonitoringdevicesarecorrectlyinstalledandinfullworkingorder.

Fan section

- Checkthesecurityofthevee-beltpulleysandtheclampingscrewsoftheclampingbush.

Adjustablebeltpulleysarenotsetupbeforeshipmentandmustbecorrectlyadjustedonsitepriortocommissioningtheair-handlingunit.

Theypermita10%variationinfanspeed. Setting: Pulleydiametercanbechangedbyalteringthepositionoftheadjustablepulleyplateaxiallyonathreadedadaptor(seetheadjacentdiagram).Toadjustthepulleyplate,relievethetensiononthevee-beltandundothelockingscrewsontheadjustablepulleywithanAllenkey.Afteradjustingthepulleyplate,itisveryimportanttotightenthelockingscrewscorrectlyandtoreadjustthevee-belttothecorrecttension.

- Checkthatthevee-beltiscorrectlytensioned. Thevee-beltpulleysmustbeinperfectalignment.

Ifrequired,adjusttheairflowbychangingthebeltpulleys(orbypulleyadjustmentiftheunitisfittedwithadjustablepulley(s)).

NoteFixingscrewsforvee-beltpulley

LockingscrewAdjustablepulleyplate

- Onlycommissiontheapplianceiftheductsareconnectedandtheinspectiondoorsareclosed.Failuretocomplywiththisrequirementwillgiverisetotheriskofmotoroverload.

- Switchonthemainisolator.

- Brieflystartthedrivemotorandcheckthefanimpellerdirectionofrotation.Correctthedirectionofrotationifnecessary.

Proceedwithextremecautionatalltimesasthedoorofthefansectionmustbeopenfortheseoperations(ifthereisnosightglass).Looseorslackpartscanbedrawnin,whichcouldcauseseveredamagetothefan.Severeorfatalinjurycouldresultifthevacuumsucksitemsofclothing(anecktie,forexample)inside.

Theairstreamonthedownstreamsideofthefancouldslamaninspectiondooropenandcauseinjuryifthefanisinstalledonthepressureside.

- Thefanistobecheckedformechanicalvibrations.

Ifthevibrationseverityislargerthan2.8mm/s(measuredonthebearingplateofthebearingattheimpellerendofthemotor),themotor/impellerunitmustbeexaminedbytechnicalpersonnelandrebalancedifnecessary.

Commissioningmaytakeplaceonlyifallsafetyinstructions(BSEN50110,IEC364)havebeencheckedandanendangermentisruledout.

Theresonancerangeoftheimpelleristobedetermined.Iftherangeofresonancelieswithintheoperatingrange,thenthefrequencyconverteristobeadjustedsuchthattherangeofresonanceisdriventhroughquickly.

Strongvibrationscausedbyirregularrunning(imbalance,overmodulationoffrequencyconverter),e.g.duetotransportdamage,inappropriatehandlingoroperationwithintheresonancerange,canleadtofailure.

Ifthefanimpellerisofthefreerunningtype,ensurethatthemaximumspeedstatedonthefantypeplateisneverexceededeveniftheunitoperateswithaninverter.Ensurethattheratedmotorcurrentconsumptionisnotexceeded.

193062049_201206

KG TopCommissioning

Filter monitor

Frost stat

- Measuretheairflowrate.Checkpressuredrop.Theairflowrateinaunitwithfreerunningfanimpellercanbemeasuredatthepressuretestingconnectorprovidedasstandard.

- Measurethecurrentdrawnbythefanmotor: Ensure that motor current and motor rating are not in excess of the figures stated

on the motor type plate. Never permit the fan speed to exceed the maximum stated, otherwise the overload will destroy motor and fan and detached or flying fragments could damage other components.

Note

Inthecaseofair-handlingunitswithvariablespeedmotorsand/orvariablerecirculatedairvolume,itisimportanttomeasurethehighestcurrentconsumptionacrosstheentirevariablespeedrange.

Note

Damper (accessory) Checkthatthedampersandlinkagemovefreely.Checkthatthedirectionofrotationofthedrivemotor(s)ofthedamper(s)iscorrect;ifrequiredreversethedirection-of-rotationswitchontheservomotor.

Ifnecessarylouverdampersmustbeinsulatedbythecustomertopreventnoiseemis-sionsandtheformationofcondensationwaterorheatlosses.

Iftheunitisfittedwithdampers,complywiththeseparateinstallationinstructionsforthedamperpositioningmotorsupplied.

Damperdriveshaft: 15x15mm

Fully open the dampers prior to starting the fan if they are arranged on the pressure side.Startingthefanagainstcloseddamperscanresultindamagetotheappliance.

OK

1 2

Frequentstartingandstoppingistobeavoided. Incaseofoperationwithafrequencyconverter, itmustbecheckedthatthe‘overmodulation’functiononthefrequencyconverterdoesnotleadtoanimpermissibleincreaseintheresonancevibrationwithintheoperatingrange(speedrange).

Theovermodulationmustbeswitchedoff! Checkthetighteningtorqueofthescrewedconnectionsafteranoperatingperiodofapprox.1hr.

20 3062049_201206

KG TopCommissioning

Cooling coil(coldwater)

Beforecommissioningtheair-handlingunit,checktheentirepipeworkforleaks.- Venttheheatexchangerandthepipework.- Ensure that condensate can drain off, to prevent the condensate tray fromoverflowing.

- Ifappropriate,beforecommissioningachilledwatercoolingcoilcheckwhethertheantifreezeconcentrationinthechilledwaterisadequatefortheanticipatedtemperaturerange.Whenantifreezeisaddedtothechilledwater,thecoolingcoil’spowerdecreasesinproportiontotheincreaseinantifreezeconcentration.

Theminimumairflowvelocityovertheelectricheatingcoilis1.5m/s(otherwiseriskofoverheating).

Ifthemotorisofthemulti-speedorvariable-speedtype,irrespectiveoftheheatingpoweroftheelectricheatingcoilitisimportanttoensurethattheairflowvelocitydoesnotdropbelowthespecifiedminimumevenwhenthemotorisoperatingatitslowestspeed.

Itispermissibletoinstallanelectricheatingcoilontheintakeside(upstreamofthedrivemotor/fanasviewedinthedirectionofairflow)onlyiftheheatingcoil’sairdischargetemperaturedoesnotexceed40°C.

Alwayscomplywiththeapplicablesafetyregulationsforelectricheatingappliances.

Always ensure that the electric heating register shuts down automatically ifthe air flow stops. In addition, the electric heating register must be switchedby one or more switching devices (contactors) having a control circuit wiredthrough the series connected safety temperature limiter. Ensure that at leastone safety temperature limiter is installed at the top inside of the heating coil.

Ensurethattheelectricheatingregisterisprotectedagainsthumidityandwater.

Note

Note

Electric heating coil Topreventoverheating,ensurethattheairflowratescomplywiththeminimumvaluespecifiedbelow(figuresareinm³/h):

AppliancetypeKG/KGW 21/43 64/96 130/170 210/270 320/380 4502200 3200 5700 9000 12500 22500

Heating coil(warmwater/hotwater/steam)

Beforestartingtheair-handlingunit,checktheentirepipeworkforleaks.- Venttheheatexchangerandthepipework.- Ensure that condensatecanalwaysdrain freely fromsteam registers, topreventsteamhammerfromdamagingtheregister.

- Topreventoverheatingduetoinadequateheattransfer,ensurethatthefanisrunningbeforeyouswitchontheheatingwaterpumporopenthewater/steamvalve.

- Checktheairdischargetemperature;max.airdischargetemperaturewithheatingcoilonintakesideis40°C;otherwiseriskofmotoroverheating.

Always bear in mind that surfaces of heat exchangers and connecting adaptorsbecome hot.Risk of burns and scalding.

Plate-type heat exchanger with dampers

Therecirculatingairdampermustbeopenandthebypassdampermustbeclosedifaplate-typeheatexchangerwithbypassdampers(andextrarecirculatingairdamper)operatesinrecirculatingairmode.Thismeansthatthefreshairinducedintothesystemispreheated.Theoutsideairdampercanbepartiallyclosedinrecirculatingairmode.

Closingthebypassdampermeansthattheoutsideairispreheated.Openingthebypassdamperprovidesameansofdefrostingtheplate-typeheatexchangerificeformsinwinter.

Flow rate monitor

213062049_201206

KG Top

Scrubber - Checkallpipesandthepumpforleaks.- Checkthatthenozzleassemblyandthenozzlesaresecure.- Ensurethatthesiphondrainisunobstructed.- Fillthesiphonwithwater.- Fillthescrubbertrayuntilwaterdrainsoffthroughthesiphon.- Brieflystartthemotortocheckthescrubberpumpdirectionofrotation;ifrequired correctthedirectionofrotation. Checkthepowerconsumptionofthepumpmotor.

Never permit the scrubber pump to run dry. The pump can suffer irreparable damage if it runs dry.

- Switchontheairintakefan- Switchonthescrubberpump- Adjustthefloat:Traywaterlevelatleast10mmabovethepumpintake,max.10mmbelowtheoverflowoutlet

- Ifinstalled:adjustdryrunprotectionandautomaticT.D.S.(inaccordancewithseparateinstructionssupplied)

Note: Onaccountoftheirproduction-relatedsurfacestructure,misteliminatorsare subjecttodisruptivedischargesforalimitedtime. Thisisnotanengineeringdefect.

Note

Commissioning

Beforefillingtherefrigerantsystemwithrefrigerant,takesuitablemeasurestoensurethatnotracesofresidualmoistureremaininthepipework(e.g.evacuateorpurgethepipeworkwithdrynitrogen).

Checkevaporationtemperature:min.evaporationtemperature+2°C;iftheevaporationtemperatureis<+2°Cthereisariskoficeformingonthefinsoftheheatexchangerobstructingorpreventingtheairflow.

Thedirect-expansionevaporatorwillbeunabletoachieveitsratedperformanceunlesstherefrigerantusedisthesameasthatonwhichthedesignwasbased(R22orR134a).

Neverpermitrefrigeranttoescapetotheenvironment,asotherwisethereisariskofenvironmentalpollution.Useavacuumextractorofsuitabledesign.

Note

Cooling coil(direct-expansionevaporator)

Contact humidifier Tomaximisetheservicelifeofthehumidifiermedium,notethefollowing:- adequatesupplyofcirculatingwater(approx.3xevaporatedvolume)- permanenthumidifyingoftheentiresurface- airtemperature,watertemperature<40°C- alwayscleaningoodtime- operateonlywithfreshwater(clearinappearance,withoutsediment).

Changingthehumidifiermedium:Removalandinstallationthroughtheinspectiondoor:- removethecoverplate- removethehumidifiermedium- installnewblocks.

Takecareto install thehumidifiermediumrightwayroundasotherwisemistwillbeentrained in theairflowand thehumidifierperformancewill fallsignificantlyshortofrequirements.

Note

- Checkthecoldwatertemperature:min.coldwatertemperature+2°C; iftheevaporationtemperatureis<+2°Cthereisariskoficeformingontheheatexchangerfinswhichwouldobstructorpreventtheairflow.

Antifreezeagentsarehazardoustohealth.Alwayscomplywiththesafetyinstructionsissuedbythemanufactureroftheantifreezeusedonsite.

22 3062049_201206

KG TopMaintenanceBeforeundertakingmaintenancework,alwaysensurethatthesystemmainisolatorandtherepairswitch(es)areOFFandlockedtopreventunintentionalreactivation.Activationwithouttheknowledgeandconsentofeveryoneworkingonornearthemachinecouldexposethemtorisksduetorotatingandmovingparts.Alwayswaitforthefantorundowntoacompletestandstillbeforeopeninginspectiondoors.Thepartialvacuuminsidetheunitcoulddrawinlooseorslackpartswhenthedoorisopened,whichcouldcauseseveredamagetothefan.Severeorfatalinjurycouldresultifthevacuumsucksitemsofclothing(suchasanecktie)inside.Theairstreamofthefancouldslamaninspectiondooropenandcauseinjuryifthefanisinstalledonthepressureside.

Retensionthevee-beltsforthefirsttimeafterapproximatelyonehourinuse.Subsequentlycheckthebeltsregularly:Theintervalbetweenchecksdependsonoperatingconditions,butshouldnotexceed4months.

Alwaysreplacethebeltsofmulti-groovedrivesasacompleteset.

Large drivemotors aremounted on adjustable square sections or amotor carrier.Totensionthevee-belt,undothefixingscrewsofthesquaresectionsandundothelocknutsonthetensioningscrew.Tightenthetensioningscrewuntilthebeltiscorrectlytensioned,ensuringthatthevee-beltpulleysremaininperfectalignment.Tightenthelocknutsandthefixingscrews.

Checkthatthevee-beltpulleysareinperfectalignment.

Note

Vee-belt tensioningscrew (appliancewithmotorcarrier)

Fan section Fanbearingswhichcanbelubricatedmustbelubricatedwithlithiumbasedgreaseforthefirsttimeafterapprox.50hoursrunandthereafterevery2500hoursrun.Maintenance-freebearingshavelifelonglubricationandbearlabelstothateffect.

Standardthree-phasemotorsaremaintenance-free.Inthecaseofspecialmotors,alwayscomplywiththemaintenanceinstructionsissuedbythemotormanufacturer.

Vee-belt drive Always replace the complete set of vee-belts if one or several vee-belts requirereplacementonamulti-groovedrive.

Neverusevee-beltsfromdifferentmanufacturers

Inasinglesetofvee-belts.

Checkthesecurityof thevee-beltpulleysandtheclampingscrewsof theclampingbushes.

Checkthatthevee-beltsarecorrectlytensioned.

Vee-belts tensioned too tightly or too slack can result in fan or motor bearingdamage.

Ensurethevee-beltpulleysarecorrectlyalignedtopreventunnecessaryvee-beltwearandunnecessarybearingloads.

Regularlycheckthevee-belttension.

233062049_201206

KG TopMaintenance

Free running fan impeller Observe safety and employment regulations (BS EN 50110, IEC 364) when carrying out repair and maintenance work!Motorandbearingaremaintenancefree.CheckthefanformechanicalvibrationsinaccordancewithBSISO14694every12months.Themax.permissiblevibrationseverityis2.8mm/s(measuredonthebearingplateofthebearingattheimpellerendofthemotor).Depositsontheimpellercanleadtoimbalanceandthustodamage(dangerofafatiguefracture–impellercanbreakup–dangertolife).Cleantheimpellerwithsoapysolutionifrequired.

Fanimpeller Motor

Test forces (F) and deflection value (x) for narrow high performance vee-belts DIN 7753

Beltprofile Effectivediameterofthesmallpulley

(mm)

ForceF(N/belt)

SPZ 67-95100-140150-200

10-1915-2019-27

SPA 100-132140-200224-315

20-2728-3535-50

SPB 180-224236-315315-400400-500

40-5246-6055-7667-90

Deflectionx(mm)

AxisclearanceA(mm)

Flat belt drive

Testmarks

Checkthepreciseparallelismofthefandriveshafttothemotordriveshaft.

Checktheprecisealignmentofthepulleys.

Cleanthepulleybeltfacesthoroughlytoremovedirt,oilandgrease.

Priortothetestrun,turnthepulleysmanuallytocheckthebeltsruncorrectly.

Checkthebeltsafteratestrunlasting30to60minutesandincreasethepretension(max.2%)ifrequired.

Whenusingcollared/wealdpulleysensurethatthebelthasnopermanentcontactwiththecollarorwealdduringoperation.Thiswouldleadtothedestructionofthebelt.

Note

Examples-testmarkclearances:

Unstretched 250mm 350mm 500mmStretched Inaccordancewiththepressureexertedonthebelt

24 3062049_201206

KG TopMaintenance

Dampers Neveroildampers.Oilcoulddamagetheplasticused.Inthatcasethedamperfunctionwouldnolongerbeensured.Blowthedamperscleanwithcompressedair;noothermaintenanceisrequired.

Heat exchanger(heatingcoil/coolingcoil/KGX)

Checkperiodicallyforcontaminationandcleanasnecessary.Cleantheheatexchangerby:-Vacuumextraction-Blowingdownwithcompressedair-Sprayingwithwaterorsteam

Ensurethattheair/water/steampressureforcleaningisnotinexcessof5bar,otherwisethereisariskofmechanicaldamagetocomponents.

Checkthecondensatedrain.Openthesiphon,cleanitandrefillit.Useacommerciallyavailabledescalingagenttocleanthedrop-eliminatorsections.

Note

Scrubber Regularlycleanthescrubberandthemisteliminator.Cleaningintervalsaresubjecttooperatingmethod,airconditionandwaterquality.Maintenanceinvolvesdrainingthetrayandrinsingitwithcleanwaterorahighpressurecleaner.

Spraypipeworkandnozzleassemblyonlywithreducedwaterpressure.Partscouldbedamagedbyajetofwateratexcessivepressure.

Commerciallyavailabledescalingagentscanbeused.Neverusefoamingcleansers.Thescrubberpumpismaintenancefree.However,whencleaningthescrubberitisadvisabletoflushthepumpandthepipeworkwithcleanwater.

Ifthescrubberisoutofuseforalongerperiodoftime,startthepumpweeklyandallowittorunforapprox.5minutestopreventthebearingsfromseizing(neverrunthepumpdry).

Note

Note

Filter Iffilterinsertsrequirecleaningorreplacement,opentheinspectiondoorandpullthemtothesideandoutofthecasing.

CategoryG4syntheticfibrefiltermatsusedasfilterinsertscanberegenerated.Thematscanbetappedclean,blownclean,vacuumcleanedorwashedoutinasolutionofcommerciallyavailablefinedetergentandlukewarmwater.Neverwringoutthemats.

Bag filters cannot be regenerated.Replace the bag filterswhen thepressure dropexceedsthepermissiblemaximumbecauseofclogging.Whenbagfilterinsertsrequirereplacement,opentheinspectiondoorandreleasethequickactionclamp,thenpullthebagtothesideandoutofthecasing.(pullquickactionclampwithatool=removefilter;(pushquickactionclampwithatool=filtertensioned)

Note: Pulltheswallowtailsealsoffthespentfiltersandpushthemintopositiononthereplacementfilters.Thisisimportanttoensurethatthenewfiltersarereinstalledcorrectly.

253062049_201206

KG TopFrost protectionFrost protection measures Heat exchanger

LPHW/MPHWheatingcoils,chilledwatercoolingcoils,plate-typeheatexchangers:- AlwaysinstallKGair-handlingunitsinroomsfreefromtheriskoffrost.- Operatewithcommerciallyavailableantifreezeandfroststat.- When the heating system is shut down drain all water-retaining parts and usecompressedairtoblowoutresidualwater.

- Plate-typeheatexchangerwithbypass:operateinbypassmodetodefrost.

Steamcoil:- When the heating system is shut down drain all water-retaining parts and usecompressedairtoblowoutresidualwater.

Electricheatingcoil:-Nofrostprotectionmeasuresrequired.

Scrubber sectionInsulatethewatersupplypipeonsite;installpiperibbonheaterifrequired.Drainthetrayandthepipework;blowoutthepipeworkwithcompressedair.Drainthepump(seethepumpmanufacturer'sseparateinstructionssupplied).

SiphonProtectthesiphononsiteagainsttheriskoffrost.

26 3062049_201206

KG TopShutdown /Fire / End-of-life disposal

Seasonal shutdown:Operateheat-wheelheatexchangerperiodicallytocleanoffthesurface.Short-term shutdown:Rundownthesystemtominimumoutputbymeansofthecontrolsystem.Setthedamperstorecirculatingairmodeandclosetheoutsideairdampertopreventcoolingandtheriskoffrost.Switchoffrecirculationpumpsandclosethecontrolvalves.Drain internal components that could be damaged by frost, for example the heatexchanger.Usecompressedairtoblowoutheatexchangerandconnectinglinesinstalledonsiteuntiltheyarefullydrained.Allowthefantorunonuntilallsurfacesarecompletelydry.Drainallsiphons.Switchoffthemainisolatorandlockthesystem.

Long-term shutdown:Adoptthesameprocedureasforashort-termshutdown.Inaddition,relievethetensiononfanvee-beltsifinstalled,orremovethevee-beltstopreventdamagetotheshaftbearings.

Restarting:Visuallyinspectandcheckforsignsofdamage.Followthecommissioningroutine(asdescribedinthe"Commissioning"section).

Shutdown

End-of-life disposal Whenithasreachedtheendof itsuseful life thesystemmustbedisassembledbysuitablytrainedandqualifiedpersonnel.Isolatethesystemfromthepowersupplybeforecommencingdisassemblywork.Trained,qualifiedelectriciansmustremovethepowercables.Fullydrainallcomponentscontainingmedia(heatingcoil,coolingcoil,etc.).Disposeof suchmedia (e.g.water containing antifreeze, refrigerant etc.) professionally inaccordancewithlocalregulations.Thesystemcanthenbedisassembledintoitscomponentparts.Metalandplasticpartsmustbesortedanddisposedofinthecorrect,environmentallyresponsiblemanner.

Wearsuitablerespiratorymaskswhenhandlingcomponentscontaminatedbydust(e.g.filters,mineralwoolproducts,etc.).

Fire Theequipmentassuchdoesnotpresentadirectfirehazard.Externalinfluencescouldcausethesealsinstalledinsmallnumbersintheequipmenttoburn.Disconnectthesystemfromthepowersupplyintheeventofafire.Personsinvolvedinfirefightingmustwearsuitablebreathingapparatus.Theusualextinguisherssuchaswater,extinguishing foamorextinguishingpowdercanbeusedforfirefighting.Flammable seals are installed only in small quantities. In the event of a fire onlycorrespondinglysmallquantitiesofpollutantscanbeproduced.

273062049_201206

KG TopChecklist Recommendedchecklistforhygienicoperationandthemaintenanceofair-handlingsystems

Genuine WOLF spare parts can be ordered at short notice by faxing the requisite information, accompanied by the order number (see rating plate) to this number: +49 8751/74-1574.

Activity Possible measure MonthsOutside air/expelled air aperturesChamber internals/appliance casingCheckforcontamination,damageandcorrosion

Cleanandrepair 12

Air filterCheckforexcessivecontaminationanddamage(leaks)

Changetheairfiltersconcernedifthelastchangewasnotmorethan6monthsago,otherwisechangetheentirefilterstage

3

Steam humidifierWashwithcleaningagentsRinseanddrythehumidifierchamber,disinfectifnecessary

6

Checksteamwandfordeposits Clean 6Checkhygienecondition 6Heat exchangerCheckforcontamination,damageandcorrosion

Cleanandrepair 3

Checksiphonfunction Repair 3Checkhygienecondition 6FanCheckforcontamination,damageandcorrosion

Cleanandrepair 6

Heat recoveryCheckcondensatetrayandmisteliminatorforcontamination,corrosionand function

Repair 3

Checksiphonfunction Repair 3Checkhygienecondition 12Ductwork and attenuatorCheckforcontamination,damageandcorrosion

Cleanandrepair 12

End unitsCheckendunitswithoutsideairfilterforcontamination

Replaceairfilters,cleanappliance 3

Checkheatexchangersinendunitswithoutairfiltersforcontamination

Clean(vacuumcleaner) 6

Replaceairfilters 12