Constant & Variable Air Volume Controllers

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Fans Air Handling Units Air Distribution Products Fire Safety Air Curtains and Heating Products Tunnel FansConstant & Variable air volume controllersAir volume the smart way

2 SystemairSpread the secret of better air!Since 1974, Systemair has been taking care of a vitalresource. Today, the company is one of the global leadersin the field of ventilation technology. A success storywhich started in Skinnskatteberg, Sweden which hasrevolutionised the world of ventilation with the inventionof the circular duct fan.

Systemair Table of contentsSystemair. 4-5A good indoor climate is vital . 6-7Optima-R.8-10Optima-RI. 11-13Optima-RS. 14-16Accessories . 17-20Room controllers. 21-31Presence detectors. 32-35Optima controller solutions. 36-44Cooling and Heating batteries. 45-59Group product range. 60-61Since then, the company has continued to grow, and todayit offers a complete range of standard-setting ventilationtechnologies. Whether it is the ventilation concept for ashopping mall, the controlled residential ventilation ofa single-family home or the ventilation of tunnels andmetro stations - Systemair experts are familiar with theconditions and have the necessary know-how. More than3000 employees in more than 60 subsidiaries in over 40countries ensure the necessary proximity to the customer.We invite you to join us in discovering the world ofventilation technology in this brochure.3

4 SystemairSystemair worldwideSkinnskatteberg, Sweden:Hässleholm, Sweden:Maribor, Slovenia:Systemair AB, the Systemair group head officeis in Skinnskatteberg, Sweden. The productionis virtually fully automated with modern machinery featuring advanced computer support. Alsolocated here is the company's most advancedtest installation for measuring technical data.VEAB is the leading European manufacturer ofelectric duct heaters. Production of heating andcooling coils, electric and water based.Specialized in centrifugal smoke extract fans,EN certified.Ukmerge, Lithuania :Production of modular air handling units.Windischbuch, Germany:Production facility for fans and modular airhandling units, specialized on engineeredproducts (e.g. tunnel and jet fans). Distributioncenter.Production of smaller air handling units withenergy recovery systems.Hasselager, Denmark:Bratislava, Slovakia:The factory in Bratislava manufactures airdistribution products and EN certified fire andsmoke dampers.

Systemair Save energy, lower running cost!Quality:Systemair is certified in accordance with ISO9001; ISO 14001 and ATEX. Our research anddevelopment laboratories are one of the mostmodern in Europe; measurements are made inaccordance with international standards likeAMCA and ISO.Dal, Eidsvoll, NorwayHasselager, DenmarkBouctouche, CanadaLangenfeld, GermanyWindischbuch, GermanyKansas City, USAMadrid, SpainOur label "Green Ventilation" features productswith a high energy saving potential.All products labelled with "Green Ventilation" combineenergy economy with energy efficiency.Skinnskatteberg, SwedenHässleholm, SwedenUkmerge, LithuaniaBratislava, SlovakiaMaribor, SloveniaMilano, ItalyIstanbul, TurkeyNew Delhi, IndiaHyderabad, IndiaKuala Lumpur, MalaysiaKuala Lumpur, Malaysia :New Delhi, India:Kansas City, USA:Manufacturing of products for the Asian market.The factories in New Delhi and Hyderabadmanufacturing grilles, diffusers, fire dampers, airhandling units and assembling axial fans.Production of fans for the US market.Madrid, Spain:Production of air handling units.Dal, Eidsvoll, Norway:Production of air handling units for theNorwegian market.Bouctouche, Canada:Our main North American production facility ofair handling units and inline fans forcommercial and residential applications is located in Bouctouche.Milan, Italy:Our factory in Italy, Systemair AC, develops andmanufactures a wide range of air conditioner.Istanbul, Turkey:Production of air handling units.5

6 Variable air volume controllersOfficesOffice buildings generally require goodventilation during the day as well as heatand cooling recovery and reconditioning ofsupply air depending on external conditions. Ventilation systems with demandcontrol should be considered for officeswhere staffing levels vary. As a rule, officesdevelop an excess of heat produced bypeople, lighting, solar radiation, computerequipment, etc. In many cases there is aneed to cool the air and prevent uncomfortable high temperatures. In larger buildings that accumulate heat energy easily,you should consider employing night cooling. If the office is in a city environment, ahigher filtration class should be used. In anoffice environment, there is also considerable need to reduce the noise generated bythe ventilation system.Schools and nurseriesA school environment means a lot of people present at certain times of the day, i.e.generally there are relatively large variations. This means that it should be possibleto use demand control for the ventilationsystem. Normally, with heat and/or coolrecovery is warranted. There will be shortperiods during the year when heating maybe required. However if there is effectivesunscreening, then air reconditioning israrely required. High demand for low noiselevels. At day nurseries, activities such ascooking that create odours are common,so there is often a need for supply air andextract air to be kept separate. There mustbe heat recovery in the form of a plate heatexchanger, for example.ShopsAs a rule, the number of people in a shopchanges constantly throughout the day,making a control-on-demand ventilationsystem the sensible option. Recirculating airin combination with carbon dioxide control(CO2) and heat recovery can be one optimised solution for these types of premises.When there are few people present, CO2levels will be low and an increased amountof return air can be mixed into the system.As the number of people present increases,the amount of return air is reduced andreplaced with fresh outdoor air. If heatingis required at night-time, the premises arewarmed up using 100% recirculating air.

Variable air volume controllers IndustryIndustrial premises will often have highairflows if the work carried out theregenerates high levels of air pollution. If thepollutants are also aggressive, there maybe requirements that affect the choice ofmaterial used. Systemair offers productsfor different environmental classes that cancope with tough environments. Filtrationof processed air can be adapted to suitspecific demands.HotelsThe requirements for conditioning in hotelsare characterised by demands relating tofire protection, demand control and lownoise levels. The choice of air handlingunit will probably be affected by thesedemands. What is important here is goodfunctions for speed control and quiet operation. In addition to quiet air handling unitswith demand control, Systemair can alsosupply fans and dampers for fire protection.Healthcare premisesHealthcare premises can encompassnumerous activities, everything fromoperating theatres to wards. The activitydetermines the requirements. Operatingtheatres will have stringent demands forcleanliness and ventilation. Wards requirelow noise levels. If several areas are servedby the same system, the unit must havedemand control and possibly even subsystems. Systemair’s range of air handlingunits can satisfy all requirements relating tohealthcare premises, whether these haveto do with air cleanliness, noise levels ordemand control.7

8 Variable air volume controllersGeneral DescriptionIn Variable Air Volume (VAV) systems, supply of cool airincreases as the cooling load increases, and the air supplydecreases as the load decreases.VAV systems are the most modern, energy efficient all airsystems available for comfort air conditioning. VAV systems require less fan capacity than a comparable constantvolume system because with VAV only the required air isused. Typically a VAV system fan volume is 60% of a CAVsystem.Control of air flow in a VAV system is accomplishedthrough an electronic device, which regulate the amountof supply air to the space in response to a proportionalroom/space temperature controller.Variable Air Volume units allow the design to take full advantage of shifting loads from lights, occupancy, solar andequipment diversity, which typically leads up to a 40%saving in the total air volume required. Consequently, thecentral plant and ducting would cost less, thus compensating for the additional cost of VAV terminal units and fanspeed controls.Systemair offers complete range of VAV’s factory testedand calibrated. The VAV range offered are as following:1.2.Pressure IndependentRound single skin VAV units (Optima-R), used ininstallations for return or supply air in low pressuresystems as single-zone controlRound double skin VAV units (Optima-R-I), used ininstallations for return or supply air in medium to highpressure systems as single-zone controlRound to rectangular single skin insulated VAV units(Optima-RS), used in installations for return or supplyair in medium to high pressure systems as multi-zonecontrolSystemair VAV units are pressure independent The accurate volume control achieved by pressure independentVAV units results in substantial energy savings as wellas increased comfort to the occupant. Conditioned airvolume is precisely regulated according to demand. Amaximum air volume setting avoids drafty air distribution;a minimum air volume setting avoids cold air dumping andstuffiness.3.Minimum and Maximum air flow requirements are set tosuit the space application. “Pressure independent unitshave controls consisting of an inlet duct sensor, damper,controller/actuator and room temperature controller”. TheVAV device controls the air supply volume through theinlet duct velocity pressure sensor to maintain air flow, asthe air-conditioning load in the space changes the thermostat signal will reset the VAV controller to change thesupply air volume to suit the space requirements. At anygiven setting, the controller will maintain the required airvolume regardless of inlet static pressure changing. Thismode of operation is called “Pressure Independent”.yy Fan energy savings from longhour usage at reducedvolumes, also installed fan horsepower reductions.yy Greater flexibility in respect to varying loads, whichare easier zoned, resulting in occupancy controlledcomfort and energy saving.yy Reduced installation and set-up cost.yy Reduced system energy consumption cost.yy Single unit for easy mounting.yy Integrated high efficiency sound attenuator.yy Suited for mounting of all controls according to customer specification.yy Accurate air volume control with centre averagingmulti-point airflow differential cross velocity pressuresensor.BenefitsThe VAV system offers some advantage and benefits overconventional systems as given below

Variable air volume controllers RDASelf regulating constant air volumeFunctionDimensionsThe air flow regulator RDA is an element placed inside theduct in order to obtain a constant flow within a pressurerange from 50 to 200 Pascal. It is used in ventilation orair conditioning systems for supply or return air. The airis forced to pass through predetermined space in whicha flap can change the position according to the specifiedair flow. The flap is attached on to a calibrated spring andtherefore no auxiliary power is needed.D112LDesign3D1RDA is made from plastic material (polystyrene) classifiedM1 in grey colour. Maximum temperature is 60 C.1D22MountingRDA is inserted directly into a horizontal or vertical circularduct. It is fixed and kept airtight by a lip seal. Arrow indicates the airflow. If the unit is placed in supply duct, thespace between the diffuser and the unit must be at least3x diameter of the duct. If used for return air the spacemust be 1x diameter of the duct.Size80100125160RDAAir volumeØDFlow regulators are characterized by their noise level indB(A).50 Pa25262732323230333434353733D1 (mm)7696120456D2 (mm)7393117147Other dimensions available upon request (Ø200 and Ø250)m /h3Lw dB(A)100 Pa150 3742L (mm)55609089200 Pa35383942424442454744474945Tests reports : CETIAT 2315002 for air flow RD Ø80 to RDØ125 mm*spacer1* air flow special body without spacers special shims with air flow ref.DiagramAir flow in m3/hSize3LOrdering D2 PT, Differential pressure in Pa9

10 Variable air volume controllersA flow regulator can provide several flow rates by simply changing the number of calibrated Shims positioned withinthe casing. The tables below show the relationship between the number of Shims, Spacers required to achieve the flowrates.Shims15 m³/hRD Ø802 Shims30 m³/h1 Shim45 m³/hWithout any ShimNote: The RD unit is shipped as standard in one complete unit including all spacers and shims to achieve the airflowrequired. If another air flow than standard setting is required, then on site the Shims can be removed to achieve higherairflows. (Eg. RD-80 is standard dispatched at 15m3/h airflow, by removing 2 shims, the airflow of 45m3/h is achieved)RD Ø100(1 Spacer)SpacerRD Ø100RD Ø125(2 Spacers)RD Ø125(1 Spacer)RD Ø125RD Ø150/160(2 Spacers)RD Ø150/160(1 Spacer)RD Ø150/16015 m³/h2 Shims30 m³/h1 Shim45 m³/hWithout any Shim60 m³/h2 Shims75 m³/h1 Shim90 m³/hWithout any Shim15 m³/h2 Shims30 m³/h1 Shim45 m³/hWithout any Shim60 m³/h2 Shims75 m³/h1 Shim90 m³/hWithout any Shim120 m³/h2 Shims150 m³/h1 Shim180 m³/hWithout any Shim60 m³/h2 Shims75 m³/h1 Shim90 m³/hWithout any Shim120 m³/h2 Shims150 m³/h1 Shim180 m³/hWithout any Shim210 m³/h3 Shims240 m³/h2 Shims270 m³/h1 Shim300 m³/hWithout any Shim

Variable air volume controllers RD Ø200(2 Spacers)120 m³/h2 Shims150 m³/h1 Shim180 m³/hWithout any Shim210 m³/h3 ShimsRD Ø200240 m³/h2 Shims(1 Spacer)270 m³/h1 Shim300 m³/hWithout any Shim350 m³/h1 Air FlowDependant Shim400 m³/h1 Air FlowDependant Shim450 m³/h1 Air FlowDependant Shim500 m³/hWithout any Shim120 m³/h2 ShimsRD Ø200Air FlowDependant ShimRD Ø250150 m³/h1 Shim180 m³/hWithout any Shim210 m³/h3 ShimsRD Ø250240 m³/h2 Shims(2 Spacers)270 m³/h1 Shim300 m³/hWithout any Shim350 m³/h1 Air FlowDependant Shim400 m³/h1 Air FlowDependant Shim450 m³/h1 Air FlowDependant Shim500 m³/hWithout any Shim550 m³/h3 Shims600 m³/h2 Shims650 m³/h1 Shim700 m³/hWithout any Shim(3 Spacers)RD Ø250(1 Spacer)RD Ø25011

Variable air volume controllersRPK-RSingle skin constant volume regulatorDescriptionLL145L24540øD1RPK-R is a single skin round pressure independent constant air flow regulator. RPK-R is used for supply or exactof constant air to a zone by a self regulating mechanicalsetting without the need of any other energy in low tomedium system pressure applicationsRPK-R is characterized by:yyyyyyyyyyAccuracy of regulationwide range of air volume setting per sizeEasy installationMaintenance freeConnections with rubber gasket for low leakageRPK-R main dimensions3000optimum2750DesignThe RPK-R is manufactured from galvanized sheet metalonly the blade is from aluminium. All steel parts are zincplated, spring is made from high quality steel. Slidingbearing is suitable for high temperatures and doesn trequire any lubrication. The cover of adjusting mechanismis made from ABS plastic and the plastic functional partsare from PA plastic.FunctionThe RPK-R enables regulation of individually requiredamounts of air in separate ventilation system zones. RPKR works in temperature from -20 to 80 C and relative humidity up to 80%. Recommended air flow velocity is from3 to 8 meters per second at pressure difference to Δp 500Pa. Accuracy is 5 %( 10% for outer settings).MountingRegulator can be mounted to horizontal, diagonal orvertical duct. The blade must be always horizontal. It isnecessary to pay attention to correct direction of mounting, so that the air is entering the regulator according tothe arrow direction, which is located on regulator casing.Connecting the duct and the regulator is done accordingto its size with self-taping screws ø3,2x13 to ø3,9x16, orwith rivets of the same diameters and the connection issealed with sealing tape. After mounting, set the requiredair volume by turning the working screw on the controllerbox.250022502000Air flow q (m³. h-1)121750150012501000750500250400Nominal dimension Ød (mm)Ordering CodeRPK-RSizeOptionalØDRAL

Variable air volume controllers ,1125 - 3702801071561,42,81604,3-8,9300 - 6201582503802901171661,63,21802,8-8,1250 - 03,3-6.51450-2900397490500410238286610,4Note:M . weight of the RPK-R controller, Mi . weight of the RPK-R-I controllerTab. 1: Dimensions of the RPK-R controllerTechnical Kmin.3QAccuracyΔpRPKmin.3(m /h)(%)(Pa)(m 0400Tab. 2: Working range, tolerance and minimal working pressure loss of the RPK-R controllerAir flow directionFront viewØD15080L min 3.DWay of mounting RPK-RRPK-R: Installation Min distance to parameter walls13

Variable air volume controllersRPK-R-IDouble skin constant volume regulatorDescriptionRPK-R-I main dimensions3000Accuracy of regulationwide range of air volume setting per sizeEasy installationMaintenance freeConnections with rubber gasket for low leakagetDesignThe RPK-R-I is manufactured from galvanized sheet metalonly the blade is from aluminium. All steel parts are zincplated, spring is made from high quality steel. Slidingbearing is suitable for high temperatures and doesn t require any lubrication. The cover of adjusting

VAV systems are the most modern, energy efficient all air systems available for comfort air conditioning. VAV sys-tems require less fan capacity than a comparable constant volume system because with VAV only the required air is used. Typically a VAV system fan volume is 60% of a CAV system. Control of air flow in a VAV system is accomplished

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