air handling units db
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Ventilation Air Conditioning RefrigerationHeating
22ºCInside
OUTSIDEHUMIDITY
PROVIDED BYHEINEN & HOPMAN
35 C
90%
productsAir-Handling units dB
air-handling units db
applicationAir-Handling Units DB are used for the off-shore and marine industry. The air handling units are specially designed to be compact and allow for fitting in the often limited space of ships, yachts and offshore modules. The fans are made of high-quality materials to withstand the extreme sea climate conditions.
The Air-Handling Unit is made of the most sturdy materials to withstand extreme cold or hot and humid air conditions, the salt sea air and the extreme environments. Standards The units comply with the following guidelines: Machinery Directive 2006/42/EC Low Voltage Directive 2006/95/EC ATEX 94/9 / EC (ATEX 95) EMC Directive 2004/108/EC Pressure Equipment 97/23/EC The units conform to the following casing-properties (according to EN 1886): Mech. • Strength class: D1 • Air leakage enclosure class: L1 • Filter bypass leakage: F9 • Therm. Conduction: T2 • Thermal bridge factor: TB2 Certification• ISO9001
• Eurovent
To offer complete operational
security to those who ensure
ours
“ “
Explosion proof
Iftheunitsarelocatedinhazardouslocationssuchasinplantswhereanexplosiveatmospheremayoccur(so-calledzoneIandIIlocations),theyarebuiltaccordingtoATEXdirectives.Evenplainaircanbehazardouswhenitholdsinflammablegases.AreaslikethatarecalledATEXzones(ATmosphèresEXplosibles). Anything that might cause the tiniest spark is forbidden there. Since July 1, 2003, every company in Europe, activeinthesezones,mustmeettheATEX137guideline(guideline 1999/92/EG) for personal and ATEX 95 guideline (guideline94/9/EG)forequipmentsusedinATEXzones.Airhandling units must meet the ATEX regulations when handling Ex-atmosphere or positioned in Ex-atmosphere. Two types are distinguished:ZoneI:explosionhazardundernormaloperation,andZoneII:explosionhazardnotlikely
Alternatives available on request.Due to continued product development, Heinen & Hopman reserves the right to introduce alternations without prior notice.
Casing Thecasingisbuiltoutofaaluminiumframework(optional:galvanizedsteelorweldedstainlesssteelAISI316L)holdingdoublewalledpanelsand,ifrequired,providedwithinspectiondoors.Thethicknessoftheframeworkisatleast2mm,dependingonsizeandapplication.Thedoublewalledpanelsaremadeofgalvanizedsteel(optional:stainlesssteelAISI316)andinsulatedwith40mmthermalandacousticinsulation, Rock- wool type 223 cross section, other insulation are possible on request. Sheet thicknesses are available from 1mm up to 2mm. Air handling units outdoors are provided with pitched roof plates and 50mm overhanging eaves.
Doors TheinspectiondoorsarefittedwithpolishedAISI316stainlesssteellocksandhingeswhicharemounted on the outside of the panels to avoid thermal bridges. Doors that close overpressure sections are provided with a safeguard to prevent dangerous situations. Not self- adhesive EPDM rubbers are used to prevent air leakage.
Grounding All components are provided with 16mm2 earth-bonding.
Electric heater The electrical heaters meet the requirements of Lloyds and Veritas. The terminal box is madeofgalvanizedsteelandalsothecasing,theelementsaremadeofinoxsteel.Theconnectionsaresealedto avoid moisture between the jacket and the elements. Because of vibrations, the elements are supported at the ends. The electrical heaters are provided with a maximal temperature protection. The heater complies withprotectiondegree:IP44.TheelectricalheatersarealsoavailableinEX-type,entireheaterisfullymadeofstainlesssteelAISI316andcomplieswithclassification:ExedIICT3(optional:zoneIandzoneII)andprotectiondegree:IP65.
Cooling coil The cooling coil is selected according to the project specific air conditions and refrigerant type. Direct expansion, seawater and chilled water are common applied refrigerants. The coil can be produced in Cu/Al, Cu/Cu, CuSn/CuSn, stainless steel/ aluminum or titanium in the case of seawater.Ananti-corrosivePoly/Alcoatingcanbeappliedaftermanufacturing.Iftheface-velocityofthecoilishigherthan2.5m/saPolypropylenemisteliminatorisinstalled.OptionallythemisteliminatoriscarriedoutinstainlesssteelAISI304orAISI316.ThecoolingcoilisprovidedwithastainlesssteelAISI316frameandpositionedaboveastainlesssteelAISI316Ldriptrayprovidedwitha1”condensatedrain.
Heating coil These can be supplied in the same design as the coolers except the heating coils are suitable for steam, hot water or another heating medium.
Base frame To support the units during transport and on-site, the air handling units are mounted on arigidbaseframe.Thebaseframeismadeofhotdippedgalvanizedmildsteelbeamsorbended4mmstainlesssteelAISI316LU-profileswhichareweldedbycertifiedwelders.Themainweldscanbeexposedto non-destructive testing (NDT) to check on imperfections. Hoisting lugs are standard equipped with a RAL1028 yellow coating. The frames are provided with diagonal positioned earth bosses.
Alternatives available on request.Due to continued product development, Heinen & Hopman reserves the right to introduce alternations without prior notice.
Filters TheunitisstandardfittedwithEU-4pleatedfiltersthatwillbemountedingalvanizedsteel filter frames. The filters are grounded through a detachable clip on the filter frame. An inspection door is provided on the inlet side of the filter, so maintenance and inspection takes placeonthedirtyside.Optionally,theunitcanbeequippedwithATEX,HEPAfilterorcoalescer.
Weather louvers Iftheunittakesinfreshair,theunitwillbeequippedwithaweatherlouver. The inlet section can be performed with a mist eliminator and/or coalescer behind the louver and the intake damper to avoid water infiltration during extreme weather conditions.
Dampers Contra rotating dampers, the casing, valves, shafts, levers and connecting rods aremadeofstainlesssteelAISI316.Therateofleakageis≤0.032m3/s/m2atapressuredifference of 1000 Pascal (tested with a damper with dimensions of 1200x1500 mm.) The valves can be operated manually or by means of an electric servo motor or pneumatic actuator.
Air flanges Theairflangesarecarriedoutin4mmto6mmgalvanizedsteel(optinal:stainlesssteel),dependingonthesizeandapplication,andforeseenwithaspecific-holepattern.
Fans Fans are generally direct driven plug-in type. The impeller consists of coated steel and thebaseframeismadeofstainlesssteelAISI316.Optionally,stainlesssteelAISI316backwardcurved double inlet centrifugal fans are used. The fan and motor are assembled on a common frameandisolatedfromthecasingbyvibrationdampersandflexibleconnections.FansforZone 1 or Zone 2 are fitted with brass inlet cones and other measures to reduce the chance of sparks. Access to the fan sections is provided with perforated CE grids for safety.Note: Plug-in type fan till max. 600Pa static pressure and centrifugal fan for higher pressure. Motors ATEXunitsarestandardequippedwith3phaselowvoltage50Hzand60Hzcastiron motors with offshore coating. The motors can be supplied in Zone 1 and Zone 2 version.
Controls/wiring TheelectricwiringconsistsofflameretardantPVChalogen-freecablesboth unarmed and armored. For the wiring of the various electrical components from the inside totheoutsidearestandardbrassCMPA2cableglandsforunarmoredcablesinstalled.IncaseofarmoredcablestherewillbestandardE1FXTRI-STARcableglandsused.Optionally,thewiringcanbeperformedonstainlesssteelAISI316ship-laddercabletrays.
Alternatives available on request.Due to continued product development, Heinen & Hopman reserves the right to introduce alternations without prior notice.
Air-handling unit selection
Maximum air quantity for a standard AC unit
Unit Size 1 2 3 4 5 6 7 8
Height of the unit excl. bedfranme H 780 780 1280 1530 1530 1530 2100 2600
Width of unit * W 780 1280 1530 1530 1700 2100 2600 2600
Length of mixing section Lm 1000 1000 1200 1400 1550 1700 1900 2100
Length of fan section Lf 250 300 400 500 700 800 900 1200
Dimensions of various parts of a standard AC unit
* The Width of the unit can increase in extreme outside conditions
Mixing section Fan section
Section selection The length of the air-handling unit depends on the selected options. The sections that are listed here below included the mixing section and the fan section determine the overall length of the air handling unit.
Length in mm
Symbol Function 1 2 3 4 5 6 7 8
Filter section: EU-4 classfilter.Otherfilters(G3-F9 filters), HEPA filters and carbon filters are available on request.
450 450 450 450 450 450 450 450
Heating coil: Steam, hot water, thermal oil or electric.
200 200 200 200 200 200 200 200
Cooling coil: Chilled water or direct expansion (including droplet separator) *Based on Tin 5oC - Tout 11oC with cooling capacity of 50kJ/kg.
660 660 660 660 660 660 660 660
Steam humidifier 500 500 500 500 500 500 500 500
Droplet separator 150 150 150 150 150 150 150 150
Silencer: The length depended on needed sound reduction value.
Possible length: 500 - 750 - 1000 - 1250 - 1500
Rotating enthalpy exchanger 400 400 400 400 480 480 480 550
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