Air Managementfor Hospital Applications

ENERGYEXPERTISEENVIRONMENT

ENERGY | EXPERTISE | ENVIRONMENT

INNOVATIVEINTEGRATEDINDUSTRIALIZED

Fläkt Woods has the capability to combine energy efficient (e 3) products into fully integrated (i3) systems.

Specialised solutions for high demands of healthcare applications

HVAC systems for hospital and healthcare facilities have special requirements because

of the susceptibility of patients to infection. Heating and ventilation systems play an

important part in providing a clean, safe and comfortable environment for recovery.

Integrating our leading products into unique solutions.

Air climate solutions to meet your needs

We specialise in air management and can deliver solutions with maximised energy efficiency from the wide range

of products we manufacture.

Our solutions can be found in over 300 hospital and healthcare facilities,

meeting the highest hygiene standards with the lowest life cycle costs

without compromising patient comfort.

HVAC systems have a major impact on:

• Infection control

• Hazard control

• Internal climate control

• Building energy consumption

Fläkt Woods solution include:

• Hygienic components

• Easy clean design

• Highest efficiency systems

Specific Healthcare demandsWhen healthcare facilities need more than heating and ventilation, we can deliver equipment and complete systems for control of infection, air movement and odour, yet maintain temperature, humidity, air quality and noise at comfortable levels for patients and staff.

Our HVAC equipment and systems are designed to meet strict hygiene standards in Europe. Certified by ILH of Germany, our eQ Plus uses materials that are microbiologically inert and meets • GermanstandardVDI6022,• SwissstandardsSWKRichlineVA104-4(04/2006)

We design our equipment and systems to• beaccessibleforregularcleaning• beeasilycleanable• enablevisibleinspectionduringoperationto ensure Hospitals are able to operate continuously around the clock

Committedtoimprovingtheenvironment,weoperatetoISO14001and strive to include more recyclable material in our products.

Air Handling Units

(AHUs)

Air Terminal Devices and Ducts

Chilled Beams

Residential ventilation Acoustical Products

Energy recovery

Controls and drives

Chillers

Fans

ENERGYEXPERTISEENVIRONMENT

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INNOVATIVEINTEGRATEDINDUSTRIALIZED

DIF OT• ScreenlessUCVsystemwithvariable velocity canopy • Asepticcontainmentwithoptimisedlaminar airflow ensuring the highest level of cleanliness• ISO5classinoperatingsimulationmode• ISO4overthesurgerybed

DIF T• Foroperatingroomswithalowerclassification• Perfectsolutionwhenverticalspaceislimited• CleanzonewithsterileairthroughDELTA series absolute filters

CleanVent Air Terminal DevicesUniqueNanotechnology Avalon® coating• Infectioncontrolanddirtrepellence• energysavingwithupto20% reduced pressure drop• easiercleaninganddegreasing• Remainscleanerforlonger40% cleaner than traditional devicesPerfect for high level and difficult to access installations.

Ultra Clean Ventilation

Fläkt Woods is not only an experienced HVAC systems integrator. We

also manufacture many of the components ourselves. This puts us in

the unique position to meet specific system requirements with com-

ponent features. Development of our components are always carried

out with functionality of complete systems in mind.

Products you can depend on

Econet Energy RecoveryHigh efficiency run around coil• Upto75%efficiency• Nocontaminationriskbetweenextract and supply air• ShorterAHUfootprint• Twin,run&stand-bypump,formission critical areas

eQ Plus Air Handling UnitHighefficiencyAHUtohygienicstandardswith:• Highefficiencyenergyrecoverysolutions• Variablespeed,plugfanswithIE2motors• Corrosionresistant,smoothsurfacesforeasycleaning• HighinsulationclassT2/TB2,airtighttoCENBclass,construction• Lights,viewingportsanddoorswithlockablehandles,inspection,foreasyaccess and maintenance.• Micro-biologicallyinertnonmetallicmaterialsinternally,

Cost Effective Energy Saving Products

Hygienic features:• Thedoorlocksfittedintothedoor

frame to allow unobstructed airflow and prevent dirt accumulation

• Non-metallicmaterialismicrobiallyinert• Paneljointsinternallysealedwithanti-fungalsealant,novisibleinternalframe-work for easy cleaning

• LargeInspectionsections• Coilwithstainlesssteeltray• T2/TB2versionavailable

For high risk zones we recommend:• 3stagesoffiltrationendingwithHEPA• Stainlesssteelpanels• ECONET®runaroundcoilsheat recovery to

avoid any contamination• CoilsFinpitchwithatleast2,5mm andEpoxycoated

• PlugfanwithPMIE2motor

Chilled beamsHygienic principle of operation• Energyefficienthighperformingcoolingtohighcomfortlevels• Nocrosscontaminationbetweenceilingvoidspaceandroom• Nomovingparts–easyclean,lowmaintenance• Fullcontrolsfordemandbasedventilationandindividualtemperatureregulation

DIF P and K• Doublefunctionforextraflexibility• Passingairthroughabsolutefilters• Distributionofairthroughhygienic air terminal devices• Offeringoptimalflowpatterns

For more information about the systems, please consult our local representative,

technical brochures, or our website: www.flaktwoods.com

Hygiene Verification check functionHygienecheckfunctioninACON–AHUselection tool. Compliance guide for cor-rectconfigurationto:• VDI6022forstandardhygieneor• EN1946-4/HTM03-01forhospitals

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ENERGY | EXPERTISE | ENVIRONMENT

Optiment Smart• Easysetactivediffuserwith integrated VAV• Constantvelocitydraftfreeair diffusion• Compact,easy,toolfreeopening

Energy Recovery Solutions

SEMCO 3Å® Energy RecoveryMolecularSieveThermalWheelforlesscri-tical areas• Upto90%efficiencywithlesstha0.04% cross-contamination-3angstrom desiccant coating • Highcorrosionresistance• Anti-microbial/anti-stickfacecoating• Lowmaintenanceandoperatingcosts, longlifeexpectancy• Fieldadjustablepurge

• Upto65%efficiency• Lowleakageupto1%• Stainlesssteeldraintray

RECUTHERM® Energy RecoveryHigh efficiency PlateheatexchangerForlesscriticalareas

Zone 4: Other areas

Waiting rooms, administrative areas, diag-nosticcentres,supportservices(cafeteria,pharmacy,shops,etc)…WithawiderangeofAHU’sandAirTerminalDevices,FläktWoods is able to provide an optimised HVAC solutionforeveryzonewithinthehospital.Specificchallengesmayinclude:

Admin/staff areasVariable occupancy during the working dayrequiresdemand-basedventilation,aswellasthe provision of optimum air quality and com-fort to facilitate staff concentration at work.

Conference roomsHigh occupancy levels during meetings require energy-efficientandcontrollabledemand-basedmanagement of air quality and temperature. Thecomfort,healthandalertnessofstaffandguests is ensured during meetings, whilst operating costs are minimised when these facilities are unoccupied.

RestaurantAn area that can be virtually empty for much of each day, punctuated by periods of very high occupancyandheatgeneration.Thecomfortand health of users needs to be balanced with energy efficiency considerations.

KitchenAs well as normal ventilation, food prepara-tion areas typically need additional air mana-gement functions, including ambient cooling, safeguardsagainstcarbonmonoxide,andthe effective containment and neutralising of food smells.

Smoke controlThesafetyofstaffandpatientsmustalwaysbeapriority.Incaseofafire,theextractionof hot, smoky gases must be controlled. Thiscanbeachievedbyusingfullydesignednaturalorpoweredextractsystems(orviaabespokepressurisationsystem).

Solutions for a healthy air climate

Air management systems for healthcare facilities have specificrequirements.Differentzoneshavedifferentrequirements,fromtheextremehygienicdemandsof a surgery room down to the more traditional air quality demands of an administrativeworkingenvironment.Duringthedesignphase of a new hospital or refurbishment, it is crucial to dedicate a multidisciplinary team in charge of the risk analysisofeachzoneswithinthebuilding.Thissurveytakesintoaccount,foreachzone,parameterssuchas:•Functionality•Requiredflexibility/adaptability•Occupanttype(Patientorvisitor)•Leveloftransmissionpotential•Presenceofspecificmedicaldevices•Comfortrequiredbymedicalteam•Hazardoussubstanceshandling•Recoverytime

TheentireHVACsystemmustbedevelopedaroundthisanalysis.Themostrestrictiveareaswillrequesta level of cleanliness of the air according to standard ISO14644-1.Inordertoreachtherequiredlevel,the right design has to be chosen with a main focus on pressure balance, air flow, type of diffusion, filtra-tion and level of fresh air. EuropeanstandardsliketheDIN1946/4inGermany,NFS90351inFrance,SWKI99-3inSwitzerland,orHTM03-01inUKwilldefinethemainparametersforthe design. Asanexample,anoperatingtheatredesignedfororthopeadicSurgeryneedstoachieveISO5 (accordingtoISO14644-1).InSwitzerland,theSystemwouldhavetoprovidealaminarflowof8,000m3/hwithaspeedofbetween0.20and0.24m/s.

Zone 2: Isolating room

Isolation bedrooms may generally be classified into two types:Airborne Infectious Isolation Rooms for patients having an airborne, communicable disease and Protective Environ-ment Rooms for patients suffering from weakened immune systems who require protection against infectious airborne agents.

ChallengesTheseroomshavetwoventilationfeaturesincommon:ne-gativeorpositiveairpressurerelativetoalladjoiningspaces,and an air distribution pattern within the room which facili-tatesairborneinfectioncontrol.Theflowpatternshouldbedesignedtoprotectthepatientandreducetheexposureofuninfected visitors to the room.

Recommended products• eQPLUSwithEconet• DIFP• Cleanvent

Class Number ofParticles per Cubic Meter by Micrometer Size

0.1µm 0.2µm 0.3µm 0.5µm 1µm 5µm

ISO1 10 2

ISO2 100 24 10 4

ISO3 1000 237 102 35 8

ISO4 10000 2370 1020 352 83

ISO5 100000 23700 10200 3520 832 29

ISO6 1000000 237000 102000 35200 8320 293

ISO7 352000 83200 2930

ISO8 3520000 832000 29300

ISO9 35200000 8320000 293000 Zone 3: Patient room

Researchhasshownthatacomfortablepatientwillrecoverfaster.Theindoorclimateisthereforecrucial.

ChallengesTheairsuppliedintothepatientroomareamustbehygienictoavoidanyairborneparticleconta-mination.Thepatientwillalsorequireacom-fortable temperature, without noise or draughts.

Recommended products• eQPLUSwithEconet• Chilledbeams• OptiventSmart• Cleanvent

Controls

Toachieveanenergy-efficientclimatecontrolsystem, the components must be carefully chosentooptimisethesystem’soverallperformance.

Integrated Intelligent Controls that interfaces with thebuilding management system is therefore essentialto providing the optimum performance

Zone 1: Operating theatre

Theoperationroommustbeanultracleanroomtopro-tectthepatientagainstinfection.Thesurgerytableisthemostcriticalzoneoftheroom.Thecontaminationmustbecontrolledbelowspecifiedlevels.Theceilingfiltrationsystem must also have the ability to clean the room rapidly between operations, in order to avoid cross contamination. Each operating room must have a risk analysis to estimate thelevelofprotectionofthisroom,including:Pathogenicityof all the agents present in the operating room, possible consequencesofanexposure,methodsoftransmission,durationofoperations,numberofstaff,etc.Thesepara-meterswilldefinetherequirementsoftheoperatingroom:•Dimensions•Qualityofdiffusion•Supplyairvolume•etc

ChallengesOperation theatre must be scrupulously clean to protect the patient:•Controlofcontamination,recognisingthezones

of focus around the operating table•Efficientanaestheticgasremoval•Fastparticledecontamination•Fasttocleanandreadjustbetweenoperations•Comfortworkingconditionsforthesurgicalstaff•Uninterruptedworkingforthesurgicalteam

Recommended products• eQPLUSwithEconet• DIFOT• DIFT

Highly efficient heat and cooling recoveryAgreatdealofenergycanberecoveredfromextractairwhichcanbeusedtoreduceenergycosts.Typically,innewhospitals,only40–50%isrecovered.WithFläktWoodssystemsitispossibletorecover around 70% of the energy, providing a further substantial reduction in the heating load of the building. Perhaps even more interesting is the potential to recover cooling fromtheextractair.WiththehigherefficienciesnowavailablefromFläktWoods’equipment,theamountof cooling energy recovered can be significant, and as chillersareoneofthemajorusersofenergywithinahospital, any reduction in the chiller load has a dramatic positive effect on both energy and cost savings.

Focus on Life Cycle CostAbout85%ofthelifetimecostforanairhandlingunitisenergycost,10%initialinvestmentand5%maintenance.ThisfactandtheEnergyPerformanceofBuildingsDirective(EPBD)fromtheEuropeanUnionleads to a demand for accurate energy calculations andLCC-calculationsforairhandlingproducts.

ToaddresstheneedscreatedbytheEPBDdirective,FläktWoodshascreatedamodelforcalculatingboth the annual energy consumption and the LCC. ThecalculationofLCCfocusesontheenergycost,LCCE.FläktWoods’selectiontoolAconcancalculatethe annual energy cost and the LCCE cost for the selected air handling unit. When calculating, Acon willconsiderallenergyconsumers(e.g.fans,pumps,driveequipmentforheatexchangers,heatersandcoolers)andalsodifferentkindofheatexchangers.

Turku, Finland - TYKS T-hospital

Fläkt Woods deliver energy efficient indoor climatesystem for the Turku University Hospital in Finland

FläktWoods’modularproductrangeismodernandhighlyspecified,designed for customers with high demand on quality and energy efficiency.Eachunitcanbeoptimizedforacousticand/orefficiencyrequirements.ECONET® is a system inside the air handling unit. In the ECONET® concept, all energy functions, such as heat recovery, heating andcoolingareintegratedintoonecommoncircuit.Thatmakesitoneofthemostflexibleandenergyefficientsolutionsonthemarket.

Heating Energy Savings:• OriginalSectionsofHospital:76kWh/m³• Phase1oftheECONET®installation(10yearold):59kWh/m³• Phase2oftheECONET®installation(3yearold):39kWh/m³ Savingofalmost50%inHeatEnergy!

Saving energy and the environment with Fläkt Woods

Reference projects

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ENERGY | EXPERTISE | ENVIRONMENT

Fläkt Woods is an acknowledged leader in the field of hospital air management. Our reference list includes:

Germany•AnhaltischeDiakonissenanstaltDessau• ÄrztehausNürnberg• AsklepiosPaulinenklinikWiesbaden

Ireland•GalwayClinic• HermitageClinicDublin• LimerickMaternityHospital

UK•PatersonInstituteManchester• Phatalogy,UniversityHospitalHartlepool• PrincessRoyalHospitalNHSTrustTelford• RoyalBerkshireHospitalReading

Norway•AkershusUniversityHospital,EUAirHandlingUnits• AlesundSykehusÅlesund• BirkenessykehjemBirkenes

Sweden•StGöransSjukhusStockholm• SundsvallSjukhusSundsvall• SödertäljeSjukhusSödertälje•HöglandssjukhusetEksjöEksjö•UmeåUniversitetssjukhusUmeå• LyckseleLasarettLycksele

Finland•MeilahdenSairaalaHelsinki• MoisionSairaalaMikkeli• NaantalinTerveyskeskusNaantali• NokianTerveysasemaNokia

Belgium•H.HartkliniekEeklo• H.Hart-ZiekenhuisCampusRoeselare

Other countries•InternationalPrivateHospital,UnitedArabEmirates• AlTawanHospital,UnitedArabEmirates• ClimatechSofia,Bulgaria• TervisePolikliinikTallinn,Estonia

Energy Efficient Air Handling Units to Akershus University Hospital in Norway

Customer:AkershusUniversityHospitalinOlso,Norway.Need: An energy efficient and cost effective solution for air handling. Solution:141EUAirHandlingUnits.106oftheunitsare in the hygienic layout and with casing air leakage classB.

Energy cost 85%

Maintenance 5%

Investment 10%

Umeå, Sweden - THORAX NUS“Need: OutdoorAHU’sforuninterruptedfreshairsupplywithRotaryHeatRecovery.OperationTheatreRe-circulationunitswithwaterhea-tingandcoolingforrefurbishmentof3OperatingSuites.

Solution: UCVOperatingTheatreSystemwithUninterruptedFreshAirsupplyandheatrecoverymetwithfouroutdoorEU-64AHU’supto12m³/s,eQL-090withrotaryheatexchangers,eQunitsforre-circulationand6noDIF-OTOptimisedLaminarFlowCeilingHEPAFilter instal-lations.

User Comments: - meetsfuturestringenthygienerequirementswithverylowCFU measured in comparison to replaced facility.- spaciousandprovidesabetterworkingenvironmentforourstaff

We Bring Air to Life

Fläkt Woods Group SA18, avenue Louis Casaï, CH-1209 Geneva, SwitzerlandTel. +41 22 309 3800email info@flaktwoods.com www.flaktwoods.com

See global website for international sales offices www.flaktwoods.com

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Fläkt Woods is a global leader in air management. We specialise in the design and manufacture of a wide range of air climate and air movement solutions. And our collective experience is unrivalled.

Our constant aim is to provide systems that precisely deliver required function and performance, as well as maximise energy efficiency.