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Systemair A/S - Air handling unit design

SystemairCAD - Version C2012-07.03.B9

19.07.2012

Project: Unit: Danvent DV 10

Summary for unit no. 1Unit size 10Unit width 970 mmWeight 662 kg

Supply Extract

Airflow (1,205 kg/m³) 2850.00 m3/h 2850.00 m3/hFace velocity (unit) 2.21 m/s 2.21 m/sExternal pressure 300 Pa 300 PaFilter F7 F7Fan 77.2 % 73.0 %

1333 Pa 830 Pa4616 RPM 4153 RPM

Motor 2.20 kW 1.50 kW3x400 V 3x400 V

4.40 A 2.90 A

SFP, clean filters including frequency converter 3.38 kW/(m³/s)SFP, clean filters excluding frequency converter 3.21 kW/(m³/s)

Heat recovery 56.3 %Heating 16.15 kW - Air 9.1/26.0°C - Water 70/55°C - 14.0 kPa - 0.26 l/s Pipe connections 3/4" / 3/4"Cooling 75.37 kW - Air 41.0/14.1°C - Water 7/12°C - 29.4 kPa - 3.56 l/s Pipe connections 2" / 2"

Sound power level 63 125 250 500 1k 2k 4k 8k Hz Total

Supply air 79 77 79 85 86 87 81 77 dB 92 dB(A)Outdoor air 71 67 66 71 59 53 48 38 dB 69 dB(A)Exhaust air 78 75 77 84 84 83 78 75 dB 89 dB(A)Extract air 72 69 69 72 63 58 54 48 dB 71 dB(A)Sound break out 71 66 55 57 51 49 46 42 dB 58 dB(A)

Systemair Ltd. Sti. Telephone : +90 2164895325Telefax : +90 [email protected]



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Plan view Access side




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Right end Left end




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Technical specification

The supply unit consist of

Mixing damperSupply Extract

Pressure drop 26 26 PaMixing damper type 3 dampersDamper blades Standard

Filter Dimensioning pressure drop 157 PaInitial pressure drop/Final pressure drop 98/216 PaVelocity, face area 2.88 m/sVelocity, filter area 0.14 m/sFilter class F7Filter size 1x[792x392]Filter length 535 mm

Inspection sectionPressure drop 3 PaLength 150 mm

Plate heat exchanger With face and by-pass damper

Supply Extract

Air flow 2850 2850 m3/hPressure drop 184 184 Pa

WINTER Air temperature in winter before/after -3.0/11.1 22.0/8.1 °CAir relative humidity in winter before/after 90/33 40/97 %Condensate 0.0 l/minCapacity 13.56 kWTemperature efficiency 56.3 %Dry efficiency according to EN 308 at 2850 m3/h 52.3 %

Heat exchanger type Aluminum heat exchangerTemperature efficiency Standard efficiencyDrip tray Standard

Heating coil, FluidAir flow 2850 m3/hPressure drop 40 PaAir temperature before/after 9.1/26.0 °CCapacity 16.15 kWFace velocity 2.93 m/sFluid type WaterFluid temperature inlet/outlet 70.0/55.0 °CFluid flow rate 0.26 l/sFluid pressure drop 14.0 kPaFluid velocity 0.91 m/s




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Coil volume 2.3 lConnection side Service sideConnection size inlet/outlet 3/4" / 3/4"Tube material CuFin material AlFin spacing 2.1 mmNo. of rows 2Coil code DVH-10-W-Z-2-4-375-720-2.1-CU-Al-H-3/4

Cooling coil, FluidAir flow 2850 m3/hPressure drop air, wet coil with condensate droplets 424 PaAir temperature before/after 41.0/14.1 °CAir relative humidity before/after 60/100 %Total cooling capacity 75.37 kWSensible heat ratio 34 %Face velocity 3.23 m/sCondensate 1.1 l/minFluid type WaterFluid temperature inlet/outlet 7.0/12.0 °CFluid flow rate 3.56 l/sFluid pressure drop 29.4 kPaFluid velocity 1.85 m/sCoil volume 11.8 lConnection side Service sideConnection size inlet/outlet 2" / 2"Tube material CuFin material AlFin spacing 2.1 mmNo. of rows 11Drip tray material StandardCoil code DVK-10-W-Y-11-11-360-680-2.1-CU-Al-H-2

Droplet eliminator 41 Pa

Fan , PlugDirect driveImpeller type M-ER25CproK-factor (p=1,2 kg/m3) 60Air flow 2850 m3/hPressure drop 56 PaFan static pressure 1232 PaExternal pressure 300 PaTotal pressure 1333 PaFan speed 4616 RPMFan efficiency 77.2 %Absorbed power 1.37 kWMaximum fan speed 4900 RPMOperation frequency 80 HzMax. operating frequency 85 Hz

MotorMotor type IE2IEC-size M3AA 90LBMotor protection Thermistor




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Rated power 2.20 kWSpeed (nominal) 2875 RPMCurrent, Amp. 4.40 AEfficiency 84.6 %Voltage 3x400 VConsumed power from mains power supply, excluding frequency converter 1.62 kWConsumed power from mains power supply, including frequency converter 1.70 kW

The extract unit consist of

Inspection sectionPressure drop 3 PaLength 300 mm

Filter Dimensioning pressure drop 157 PaInitial pressure drop/Final pressure drop 98/216 PaVelocity, face area 2.88 m/sVelocity, filter area 0.14 m/sFilter class F7Filter size 1x[792x392]Filter length 535 mm

Empty sectionPressure drop 3 PaLength 600 mm

Plate heat exchanger Data are stated on supply.

Fan , PlugDirect driveImpeller type M-ER25CproK-factor (p=1,2 kg/m3) 60Air flow 2850 m3/hPressure drop 56 PaFan static pressure 730 PaExternal pressure 300 PaTotal pressure 830 PaFan speed 4153 RPMFan efficiency 73.0 %Absorbed power 0.90 kWMaximum fan speed 4400 RPMOperation frequency 72 HzMax. operating frequency 76 Hz

MotorMotor type IE2IEC-size M3AA 90LMotor protection ThermistorRated power 1.50 kW




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Speed (nominal) 2900 RPMCurrent, Amp. 2.90 AEfficiency 84.1 %Voltage 3x400 VConsumed power from mains power supply, excluding frequency converter 1.07 kWConsumed power from mains power supply, including frequency converter 1.13 kW

Mixing damperSupply Extract

Pressure drop 26 26 PaMixing damper type 3 dampersDamper blades Standard

Other partsSections

Product Dimensions (width x height x length) Weight

CS-10-0-520-1-5 970 x 970 x 520 mm 76 kgCS-10-0-1870-1-2 970 x 970 x 1870 mm 294 kgCS-10-0-1570-1-2 970 x 970 x 1570 mm 274 kg

FeetProduct Dimensions (width x height x length) Weight

DVZ-10-1 970 x 100 x 520 mm 2 kgDVZ-10-2 970 x 100 x 1870 mm 8 kgDVZ-10-2 970 x 100 x 1570 mm 8 kgFeets are supplied mounted on the unit casing.

Duct connectionsProduct Dimensions (width x height)

Outdoor 900x350 mmSupply 900x350 mmExtract 900x350 mmExhaust 900x350 mm


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