fischbach- air handling units · 2018-06-24 · fischbach - air handling units ... when cold...

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Standard Series, Size 1 - 4: up to 32.000 m³/h Flat Series, Size 1 - 5 Advanced technology in Super-Flat format: Flat Series up to 9.000 m³/h with heat recovery system Am Hellerberg 22-24, D-57290 Neunkirchen phone: 02735/ 777-0, Fax: -125, e-Mail: info@fischbach-luft.de http://www.fischbach-air.de FISCHBACH- Air Handling Units 1 Ventilating Heating Cooling the heart of every FISCHBACH AHU: Fischbach Compact Fan - The silent one - ... and lowest noise levels

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Standard Series, Size 1 - 4: up to 32.000 m³/h

Flat Series,Size 1 - 5

Advanced technology in Super-Flat format: Flat Series up to 9.000 m³/h

with heat recovery system

Am Hellerberg 22-24, D-57290 Neunkirchen phone: 02735/ 777-0, Fax: -125, e-Mail:[email protected] http://www.fischbach-air.de

FISCHBACH-Air Handling Units

1

Ventilating

Heating

Cooling

the heart of every FISCHBACH AHU:Fischbach Compact Fan - The silent one -

... and lowest noise level

s

2

FISCHBACH - Air Handling UnitsAIR HANDLING UNITS

SOME OF THE BENEFITS: Casing panels with P.V.C. frame, in double skin construction 41 mm deep

Insulationofmineralfibrewithhighinsulationvalue

Higher effective double-edge rubber sealfittedallaroundtheP.V.C.frameforhighpressuredifferenti-als

Improvedweather-proofproperties

Robust quick release locks(rotating90°),fullycountersunk,fittedintoP.V.C.framewithlarge contact area

OperatedbymeansofhexagonalspannerSW6

Casingpanelsremovable(interchangeable),inspectionsidehingedorwithT-handleifrequired

Smoothinternalsurfacesthatcanbewipedclean,noprotrudingcatches,thereforeeasiermaintenanceandinspection

Overalldesignextremlysoundproof

Main casing frame construction from robust ALUMINIUM PROFILESwithinternalcornerpieces

MainframeofhollowloadbearingprofileseparatedfromtheinternalframebyP.V.C.struts.Theinternalframehas„T“groovesforattachingthevariouselementsoftheunit.Ifnecessary,theseelementscanbefittedduringsiteinstallation

Intermediatesupportsonlargermodulestostrengthenandfixthesidepanels

High sealing according to class D III, VDI3803

Ventilator Unit Can be taken out from access side after unfastening of 4 screws. Easier handling and cleaning. Easychangeofthefanduetohigherperformance.

Air Heater Unit Heater can be taken out from access side. Easiertoinspectandclean.

Electric Air Heater Unit Heater can be taken out from access side. Easiertoinspectandclean Easy electrical connection on site. Partiallyhigherperformance.

AirCoolerUnit Cooler,moistureeliminatorcanbetakenoutseparately forinspectionandcleaningpurposes. Draintraycanberemovedonaccessside Slopingdraintrayprovidesimmediatedrainageofcondensate. Drain tray in stainless steel. Upto11,2%largercoolersurface.

AirfilterUnit Filterinsertscanbetakenoutfromaccessside. Easytoinspectandeasytochange. Filterinserts195mmlonginEU4. Filterinserts600mmlonginallfilterclassificationsuptoEU9/F9available. Filterinserts600mmlongwithasurfaceof4.9sqm.

AttentuatorUnit Easyinspectionandcleaningoftheinserts. Constructionlengthaccordingtospace.

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FISCHBACH - Lüftungs- und KlimatechnikCoarseFilterUnit Coarse-andFinefilterinsertscanbetakenoutfromaccessside. Easytoinspect,cleanandchange. Internalslopesimmediatecondensatedrainage. Easy to clean drain tray. Stainlesssteeldraintray. Connectionofacondensatedrainagepipepossible

ActivatedCarbonFilter Surveyincludingactivecarboncartrigescanbetakenoutfromaccessside.Unit EasytoinspectandeasychangeofActivecarboncartriges.

Standard conformity:

Standardconformityoftheequipmentsections(modules)accordingtoDINEN1886istestifiedbytheTestReportofRWTüV,dated29.06.1995.Inconnectionwiththisisaclassificationforthemechanical,acoustic,thermalandfireprotectingparametersoftheboxes:

Quality comparison of the boxes to Standard EN 1886 and RAL - GZ 652

ThequalityrequirementsofRAL-GZ652arefulfilledbytheunitandinthemostimportantrequirementsevensurmounted.

Avoid condensation on surface:

Whencoldoutsideairistakeninandwithverylowcoolingcoildischargetemperatureitmayleadtoafallbe-lowthedewpointatthecornerpointsoftheboxandcondensatemayoccur,whentherelativehumidityintheroomwheretheunitstandsisveryhigh.Iftheunitisplacedintheroomthatistobeairconditioned(e.g.Flatunitundertheceiling)itshouldbetakenintoconsidderationthatanadequateexchangeofairisguaranteeddurtokeeproomhumiditylow.Asameasurementforequalityofthesurfacetemperature,theHeatbridgefac-tor on one hand and the good heat insulation on the other hand, there is a high safety against condensation. Condensationcannotbetotallyexcludedunderextremethermalandhygieneconditions.

Mechanical safety:

RequirementsofISO12499arefulfilledastheaccessopeningsonthefanmodulescanbeopenedwithatool(Allen-wrench).

Product line: Standard and Flat Series

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Dimensions: HeightxDepth[mm]

350x650 Flat 1

350x750 Flat 2

350x1000 Flat 3

350x1350 Flat 4

400x1350 Flat 5

equippedwithstandardfilterandfiltermonitoring

Dimensions: HeightxDepth[mm]

600x600 Standard 1

750x750 Standard 2

1000x1000 Standard 3

1350x1350 Standard 4

equippedwithstandardfilterandfiltermonitoring

Air handling unit selection diagram

0 2000 4000 6000 8000 10000air flow volume [m³/h]

0 5000 10000 15000 20000 25000 30000

air flow volume [m³/h]

Product line: Standard and Flat Series

A1 = Cross sectional areaA2 =B=AnschlußquerschnittA3 = cross section of standard

connectionsize„B“A3=rectangularcross section (cross section A2 = A3)L =Lengthofdiffuser

Theoptimumlengthofthetapereddiffuserisdetermi-ned by the angle (α).

Theangle(α) should be <= 10° .

Forductconnection(stepwisediffuser)A2aminimallengthLisnecessaryforthestatedpressureregain.Indicationoftheminimallength:seeperformancedatasof each fan unit.

IncaseofconnectionfromsquaretorectangularA3=A2(seediagram3),thepressureregainisidenticaltoconnection to A2 ( standard connection size).

The pressure regain, by means of duct connec-tion of appropriate length according to standard connection size „B“, is indicated underneath the axis of each pressure/volume diagram of Ventila-tor Units.

Example: VN 202:Airvolume:VL =5000m³/hStaticpressure(A) =475PaPressure regain by diffuser (B) = 100 Pa(acc.tocurve)Total: =575PaToovercomeallresistancesofthesystem,575Paaremax.availableintotal.

Using this method, the regain in pressure might besufficienttoselectasmaller(cheaper)unittobe installed.

ThePressure/Airflowvolumecurve(seediagramofVentilatorUnit)isperformance-testedwithfreeinlet(withoutrearsidepanel)andfreedischarge(noductconnection)

Duct-connectionondischargesideimprovestheflowconditions.

Theenergy,containedintheairduetovelocity(dy-namicpressure)onthedischargesideofVentilatorUnit,canbepartlytransferredintostaticpressurebymeansofconnected,expandedducts(Pressureregain,seepictures).

Thisregainofstaticpressureisinadditiontotheregularstaticalpressureavailabletoovercometheresistance of the whole air conditioning system.

Toobtainthisincreaseinstaticpressure,diffusersdesi-gnedtoincreasethecross-sectionalareaarerequired.(Fig.2: duct connection diffuserwith enlarged crosssection,Fig.3:tapereddiffusertogiveanincreaseinthe cross-sectional area).

diffusor,stepwise

conical diffusor

transitionfromsquaretorectangular cross section A2 + A3

L

A1

A2

Stat

ic P

ress

ure

Reg

ain

Stat

ic P

ress

ure

[Pa]

Experimentalset-upaccording toDIN24163

TestchamberFreedischarge

Installation of the diffusors

A3

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Ventilator UnitStaticPressureRegain

Product line: Standard and Flat Series

Incaseofaircoolerswithdirectexpansioncoolant,thecoolingagentisintroduceddirectlyintothecoppertubeviaadistributor.Itisthenextractedviatheheaderinavapourizedform.

Coolers should be used only in connection with pre-heaters in front, or with an anti-freezing medium (glycol) addedtothecoolingmedium(toavoidriskoffreezingup!).

In case of using an antifreezingmedium, a separatecalculationofcoolingperformanceisnecessary!

When installing an Air Cooler Unit on the discharge side of a fan, a dummy section with an air distrubution plateneedstobefittedbetweentheAirCoolerandthefandischargetoenableappropriateairdistribution.

A Siphonneedstobefittedatsite.Nominalconnectionsize:DN40.Dimensioning of the Siphon as follows (see also Moun-tingInstructionsatpage11,fig.3):Incaseofnegativepressure:Measurementainmm=neg.pressureinPa/10Measurementbinmm=neg.pressureinPa/10Incaseofpositivepressure: Measurementainmm=pos.pressureinPa/10Whenconnecting several Air-Coolers to one conden-satewaterpipe,asiphonhastobefittedtoeach unit.ASiphoninstalledonthepositive pressure side must notbeinafixconnectiontoaSiphonmountedtoane-gative pressure side. A free intake into the collec-ting pipemustbeprovidedviaadmission hoppers.

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Standard Series:Coolingwithwaterseparatoranddraintray,pulled-in on rails. Draintraywithlateralrun-offplatesforcon-nection to siphon (not included). Cooling coil, water separatoranddraintraycanbepulledoutseparatelyforinspectionandcleaningpurposes.Immediate condensate run-off by inclined plates.Drain tray out of anti-corrosionmaterial.That newdesignfeaturesanupto36,5%largerheatexchangesurface.

Flat Series:Cooling-elementandwaterseparatorcanbepulled-outsidewardsforinspectionandcleaningpurposes.DraintrayintegratedintothebottompaneloftheunitwithCondensate by underneath pipe connection.OtherdetailsindenticalwithStandardSeries.

LK and LKV: Coils out of copper tube withfittedprofiledaluminiumfins,connectionpipeoutofcopper,withsteelscrewedconnection,male.Operatingpres-suremax.17bar.

DesignandperformanceaccordingtoGermanRAL-group-quality-standard:Air-flowvelocity,Water pres-suredrop,MaterialandFunction.

Air Cooler LK (horizontalairflow)withanhigh-effici-ency water separator.

Air Cooler LKV onlyforairflowdirectionsfromthebottomtothetoporhorizontalairflowturnedstaticalup-wards.Equippedwithadropcollectorandrun-offplate.

Pipe connection side = according to customers in-structions, left (standard) or right hand side.

DirectEvaporatorLKR and LKRV: Connections for coolingagentoutofcoppertube,solder-hook termi-nated.

LKR Standard Series LKRV Standard Series LKR Flat Series

Air Cooler Unit LK and LKV / LKR and LKRVForcoolingmedium:chilledwater(LK/LKV)orcoolingagent(LKR/LKRV)

Product line: Standard and Flat Series

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LW for medium pump circulated water (LPHW)

Mounting of coils:Heatingcoilcanbepulledinon rails.Coil to be pulled outsidewardstoserviceside.Sim-plifiedinspectionandcleaning.Upto21%larger heat exchange surface. Flat Series:Heating coil to be pulled out sidewards, other details sameasStandardSeries.Heating coil made of copper with bonded, high-performingaluminiumfins.Thepipesoutofcopperwithsteel screwed connection, male.Operatingpressuremax.17bar.Operatingtemperatureupto100°C.Design andperformance acc. toGermanRAL-groupqualitystandard:Air-flowvelocity,waterpressuredrop,distancebetweenlaminars and material.Connection side of pipes: in standard left hand.Theconnectionsidecanbechangedfromleft to right byturningthecompleteAirHeaterUnit.Theconnectionofpipework(tobemountedatsite)mustbe realised with inverseflow:The outlet pipe of the heating coil is to be placed generally on the air-inlet side!Thethermaloutputisdecreasedincaseofpipeconnec-tionindifferentway(parallelflow).

Froststationavailableasaccessories.

AirHeaterUnitsforLow-PressureSteamavailableasspecialequipmentanrequest.

Performanceadataandpressurelosseswillbecalcu-latedonrequest!

LE for 400/V/50Hz operating voltage

Standard and Flat SeriesHeater element mounted on rails. Ready connect with integratedconnectionbox.Heaterelementtobepulled-outsidewardstotheserviceside.Simplifiedinspectionandcleaning.Simpleelectricsupply(bycustomer).Inpracticepartlyhigherperformancepossible.Airheatingviagilled-pipesheatingelementsoutofanti-corrosion stainless steel.Heating coils out of high-temperature resistantCr-Ni-material.Safetydesign(wiring)acc.toRAL-groupstandard.TheElectricHeaterUnitisequippedwithatemperature cut-out, in standard. TheElectricAirHeaterUnithastobeconnectedtootherACOVEN(fanunit)side viaearthingstrip (ProtectiveConductor). Theheaterelementsareconnectedingroups,readyforswitching,in2,3or4steps(dependingonmodelandsize). The coils are connected ex factory for 400V/50Hz3-phasesupply.Inordertoavoidoverheating,theheatingcoilissuppliedandfittedwithatemperaturecut-outwhichissetto 90° C.atthefactory.Thetemperature-cut-outmustalwaysbe installed in theupper areaof unit, behindheatingelements(indirectionofairflow).Theelectricalconnectionhastobemadeaccordingtothewiringdiagram.ThefanandtheElectricAirHeaterUnit must be switched on at the same time. A Time Relay accessory isrecommendedtoprovidea time lag of fan operation (for 10 minutes) after switching-off the system.In case of installation of the Electric Air Heater Unit on inletside,thepermissibleairtemperatureofthefanmustnot beexceeded.Otherwise, theheater unitmust beinstalledonthepressuresideofthefan.Incaseoffanspeedcontrolorotherairvolumecontrol,a minimum air volumemustbeensuredtoavoidover-heating. Minimum Air Volume VLmin:

VL min = Q x 3600 / (60 - tle)

tle:Airtemperatureon-coil(°C)

Q:ThermaloutputofElectricHeaterUnit(kW)

Air Heater Unit LW formediumpumpcirculatedwater(LPHW)Electric Air Heater Unit LE for400V/50Hzoperatingvoltage

Product line: Standard and Flat Series

Standardfiltersmounted on rails.Pocketlength:195 and 600 mm.Filterunitstobepulled-outsidewardstotheserviceside.Easyinspectionandeasyexchangepossible.Filterunits:195mmlonginG4(EU4)Filterunits:600mmlonginG4(EU4),F5(EU5),F7(EU7)andF9(EU9).Filters600mmlongwith6m²filtersurface(size 2, standard).Design and performance according toRAL-group-standards:largefiltersurfaces,filterclassesappropriatefor use.ThefiltermaterialforthefilterclassesG4andF5ismadeofsyntheticfibrematerial,F7andF9ofahigh-qualityglassfibre.Standard Series: Therequestedside onwhichthefiltershouldbe pulledout,istheserviceside,left(standard)orright.If requested,filter frames forfilterexchange towardsdust-loadedairsideareavailable. In this case, a dummy sectionneedstobefixedinfrontofthefilter(foraccess).Standard Filter mounted on rails.

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Baglength:195 and 600 mm. Filterunitstobepulled-out downwardstotheserviceside. Easyinspectionandeasyexchange.FilterclassessameasforStandardSeries.Filters600mmlongwith4,9m²filtersurface(size 2).Wheninstalling the Filter on the fan discharge side, a dummy section with an air distribution plate has tobeinstalledbetweenfilterandfanoutletinordertoreachanacceptablepressuredrop.

Accessories: Forfiltercontrol,an Inclined-Tube Pressure Gauge or a Differential Pressure Control areavailableasaccessories.Forremotemonitoring:Differential Pressure Mano-meter or Inclined-Tube-Pressure Gaugeareavailablewith a switch contact.

Air Filter Unit KFS forFlat Series

Air Filter Unit KFS forStandard Series

Air Filter Unit KFSwithshortorlongpocketfilterCoarse Filter Unit GF for the elemination of greasy and oily substances

Coarse Filter Unit GF for Standard and Flat Series

Modulefora3-stage-filtrationofdirtyandgreasy air.Filterelementsoutofmultiplemeshstructureandfibrematpulled-inonrails.SeparateDrain Trayinthesidepanel.MetalFilterandFibreMatscanbepulled-out to the service side(StandardSeries:sidewards)(FlatSeries:to the bottom).Easy inspection,cleaningandexchange.Easy cleaning of theDrainTray. DrainTray to bedismantledtothebottomside.DrainTrayoutofalu-minium. Connectionofacondensatepipepossible.Moduleforthefiltrationofdirtyandgreasy air.

Design:Twometalfiltersofgridtypestructurefittedonebehindtheother,andafibrematinanexchangeframewithsupportingwire-net.All3Filterelementsinplanefilterdesign.FibrematinqualityclassG3.MetalFilters out of anti-corrosion material. TheFibrematcanbeexchangedbyreplacingthefibremat.Thetwometalfilterscanbewashedcleanedinawashingmachineorbyhigh-pressuresteamcleaners.Theair-flowdirectionis determinedtoflowfirstthroughthetwometalfiltersandthenthroughthefibremat.TheoilysubstancesareconductedbythefibremattothebottomsideandcollectedintheDrainTray.Thesaturationof themetalfilterscanbepartlycon-trolled by a Differential Pressure Manometer . A continious and regular inspection is absolutely neccessary .Theinspectionintervalsdependonthefieldofapplicationoftheunitandthereforeneedtobedetermined according the conditions at site.TheCoarseFilterUnitGFcanbeusede.g.asfirst Pre-Filter toanactivatedcarbonfilter.The service side is to be determined by the custo-mer (standardsideforstandardseries:left).Becauseofthefixedair-flowdirectionandtheDraintray,aturningoftheCoarseFilterModuleisnotpossible.

Product line: Standard and Flat Series

Moduleswithmixingchamberforunitsarrangedontopof each other.

Air Mixer Unit type LJ (withonedamper)formixingofoutsideair-andadditionalairflow.

Service side according to customers requirements.Accesstothegearsandservo-motorsfromtheserviceside.

Air Mixer Unit type LJ isavailablewithdampersize„A“(1)ordampersize„B“(1/2).(TypereferenceLJ-A(1)orLJ-B(1/2). Air Mixer Unit type LM(with2dampers)forsupplyandextractunitsarrangedontopofeachotherareavailablewithdampersizes„A“(1)anddampersizes„B“(1/2).

AlldamperswithU-frameingalvanizedsheetmetal.Laminarsoutofaluminiumextrudedsection.

DampersshaftsinPVC-bearingbushes.

Air Mixer Unit CLM(with3dampers),forsupplyandextractunitsarrangedinrow.

Servicesideaccordingtocustomersinstruction.Accessfromtheserviceside.

Deliveredwiththreedampers1/2(size„B“).

AlldamperswithU-frameoutofgalvanizedsheetmetal.La-minarsoutofaluminiumextrudedsection.DampershaftsinPVC-bearingbushes.

Fitting Actuators:

Thedampersareinstandarddeliveredtoensuremo-torizedactuationviadampermotors.

OurmodelrangeofBINAR-actuatorsisdesignedtofitoptimalthoserequirementswithON/OFFandMODULATINGmodelsin230Vaswellas24Vsupplyvoltage.

Please contact us for more details.

Ifamanualdamperoperationisrequested,pleaseordermanualleverasaccessory.

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Standard Series LJ ... Standard Series LM ... Standard Series CLM ...

Flat Series LM ... Flat Series CLM ...

Air Mixer Units LJ, LM and CLM forAHUmodulesarrangedontopofeachotherandinrow

Product line: Standard and Flat Series

Dampers:

U-Framemadeofgalvanizedsheetmetal,with frame elongated holes tofitflexibleconnectionsaswellasonusualducts.Hollow profile laminars out of aluminium extrudedsections.ShaftsinPVC-bearingbushes.Standard Series: Dampersavailable in2sizes (foreachFISCHBACHAHUsize):-size„A“(big,1)-size„B“(small,1/2)Flat Series: Dampersavailableinsize„A“(1).

Flexible Connection:

Galvanizedangleframeonbothsides.Framewithelongatedholestofitducts,dampersormodules.Materi-al:Polyesterwithvinylcoating.Accordingtospecifica-tionsofcustomers,availableaswellinothermaterialsonrequest.Standard Series:FlexibleConnectionsavailablein2sizes(foreachFISCHBACHAHUsize):-size„A“(big,1)-size„B“(small,1/2)Flat Series: FlexibleConnectionsavailable(foreachFISCHBACHAHUsizeinsize„A“(big,1)

Silencer duct Type.

Silencerducttypeareavailableasaccessories.Silenceraredesignedespecially to fit the performance rangeofFISCHBACH-Products with regard to attenuationand dimensions.The attenuation performance canbevariedbyaggregationofthenecessarynumberofmoduleseach500mmlong.Silencermoduleswithlengthsof:850mm,1350mmand1750mm,includingstreamingchamber.AttenuatorinsertsinAir-handling-unitbox.CasingoftheSilencersoutofgalvanizedsheetmetal,withangleprofilesonbothsidesfordirect,easymoun-tingtoFISCHBACH-modules,tofollowingsilencerorthe duct.Attenuator insertsmeet theGerman-RAL-group-qualitay-standard and has been developedespeciallyfortheuseinAirHandlingUnits.Widebandattenuationform250to1000Hz.Theattenuatorinsertsactpartiallyasresonancechambersandpartiallyasabsorbingchambersinordertogetoptimalattenuationresults.Theattenuatorinsertshaveacoatingofglassfibre-abrasionproofupto20m/sAbsorptionmaterialoutofmineralfibredate,non-inflammableaccordingtoDIN4102.

Activated Carbon Filter Unit ACKF( foreliminationofodoursandtoxicsubstances)Dampers, Flexible Connections and Silencer duct Type

Activated Carbon Filter Unit:

Module to eliminate the emission of indesirable con-centrations of odours substances to atmosphere,particularlytomeetlocalauthorityregulations.

Thenumberof cartridges isoptimatedaccording tothe AHU sizes.

Casingframemountedonrails,fittedwithlightweigh-ted activatedcarbonfiltercartridges.Casing frame including activated carbon filter cart-ridge to be pulled-out sidewards to the Service side (StandardSeries)anddownwards(FlatSeries).Easy inspection and easy exchange oftheactivedcarbonfilter.

Thefiltercartridgeismadeupofperforatedgalvanizedinner and outer cylinder with a base and seal.Thecartridgeclasssealedduetothebayonetfixing. The two cylinders are filledwithactivated carbon, speciallypressedinfactory.

Agasketonthequickreleaselocksealsthecartridgeair-tight against the casing frame.

Theactivatedcarbonfilter cartridgeshave to beprotectedfromgreasyandoilysubstancesbyappro-priatepre-filters.In case of oily air conditions (e.g. in kitchens), a Coarse FilterUnitGFandaBagFilterUnitKFSwithfilterclassF7,mustbeinstalledinfrontoftheActivatedCarbonFilterUnit(inair-flowdirection).

TheActivatedCarbonFilterUnitshouldbe installedonly on the inlet side of the fan. If the unit must be positionendonthepressure side, a dummy section with a diffuser plate must be installed between the fan-dischargeandfilterunit.

Thelifetimeoftheactivatedcarbondependsonthequality of thepre-filtrationandon the concentrationand kind of odors.

Followingmax.air-conditionsarevalidforoperation,storageandtransportofactivatedcarbonfilters:

Air-humidity: max. 70% rel. humidityTemperature: max. 50 °C

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