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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
4 3062049_201206
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
73062049_201206
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).
8 3062049_201206
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
113062049_201206
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
133062049_201206
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
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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.
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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.
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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.
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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