Exhaust air diffuser HPKH + Plenum box ATTS

Fläkt Woods 10020 GB 2017.11.07 1 (8) Specifications are subject of alteration without further notice.

Exhaust air diffuser HPKH + Plenum box ATTS

The HPKH is a quiet, ceiling-mounted exhaust air diffuser. The diffuser hasan almost completely perforated diffuser plate. The slot height of the diffusercan be set at 0 or 12 mm. Fixed to the diffuser body with magnets, the diffuserplate is easy to open. The HPKH exhaust air diffuser is also available withoutthe plenum box.

Quick SelectionHPKH with 0 mm slot, 1:2 plenum box ATTS (50 Pa)

Diffuser Connection ATTS Air flow l/s at sound levelHPKH- inlet mm outlet mm 25 dB(A) 30 dB(A) 35 dB(A)160-4 125 160 - 40 -160-6 125 160 - 39 53200-4 160 200 41 54 85200-6 160 200 - 43 75250-6 200 250 - 76 89315-6 250 315 - - 115400-6 315 400 - - 190

- = outside working area

4 = 425x425, 6 = 595x595

Specifications

• Easy to install and adjust• Low sound level• Adjustable air slot 0 or 12 mm• 5 connection sizes and 2 diffuser

sizes (425x425 or 595x595)• All connection sizes are suitable

for suspended ceiling systems(595x595), false ceiling plateavailable for size 425x425

• Available with CleanVentcoating

• Extremely compact plenum boxATTS

• Also available with the plenumbox ATTD

Product code exampleExhaust air diffuser HPKH-250-6

Plenum box ATTS-200-250-1

Exhaust air diffuser HPKH + Plenum box ATTS

Fläkt Woods 10020 GB 2017.11.07 2 (8) Specifications are subject of alteration without further notice.

Air flow, pressure drop, sound level

Exhaust air diffuser HPKH + ATTS with 0 mm slotHPKH-160-4 + ATTS-125-160-1 - with 0 mm slot HPKH-160-6 + ATTS-125-160-1 - with 0 mm slot

HPKH-200-4 + ATTS-160-200-1 - with 0 mm slot HPKH-200-6 + ATTS-160-200-1 - with 0 mm slot

HPKH-250-6 + ATTS-200-250-1 - with 0 mm slot HPKH-315-6 + ATTS-250-315-1 - with 0 mm slot

*) adjustment position

---- Min. airflow required to obtain sufficient measuring pressure.

Exhaust air diffuser HPKH + Plenum box ATTS

Fläkt Woods 10020 GB 2017.11.07 3 (8) Specifications are subject of alteration without further notice.

Air flow, pressure drop, sound level

Exhaust air diffuser HPKH + ATTS with 0 mm slotHPKH-400-6 + ATTS-315-400-1 - with 0 mm slot Exhaust air diffuser HPKH - with 0 mm slot

*) adjustment position

---- Min. airflow required to obtain sufficient measuring pressure.

Exhaust air diffuser HPKH + Plenum box ATTS

Fläkt Woods 10020 GB 2017.11.07 4 (8) Specifications are subject of alteration without further notice.

Sound power level Lw

Exhaust air diffuser HPKH + ATTS with 0 mm slot, 1:2 plenum boxDiffuser Connection ATTS Correction of sound level K (dB)HPKH- inlet mm outlet mm 63 125 250 500 1000 2000 4000 8000160-4 125 160 7 4 3 0 -4 -1 -10 -18160-6 125 160 6 5 4 0 -4 -1 -10 -18200-4 160 200 5 3 1 -2 -4 1 -11 -19200-6 160 200 6 3 2 -2 -4 0 -12 -19250-6 200 250 4 3 0 -5 -5 1 -12 -19315-6 250 315 6 3 -2 -4 -2 1 -12 -20400-6 315 400 4 -1 -4 -3 -1 0 -11 -19

Tolerance ± 6 3 2 2 2 2 2 3

Exhaust air diffuser HPKH with 0 mm slotHPKH- Correction of sound level K (dB)

63 125 250 500 1000 2000 4000 8000160-4 6 0 1 -1 -1 -1 -10 -19160-6 8 9 6 1 -3 -4 -11 -18200-4 5 -2 -4 -6 -2 -1 -6 -17200-6 0 -3 -3 -4 0 -1 -11 -17250-6 4 -4 -5 -3 -2 0 -12 -20315-6 3 -2 -7 -6 -3 1 -11 -12400-6 3 -6 -11 -9 -4 2 -11 -12

Tolerance ± 6 3 2 2 2 2 2 3

Sound power levels by octave bands are obtained by adding to total sound pressure level Lp10A, dB(A), the correctionKoct presented in the table according to the following formula:

Lw = Lp10A + Koct

Correction Koct is average value in range of use of the device.

Exhaust air diffuser HPKH + Plenum box ATTS

Fläkt Woods 10020 GB 2017.11.07 5 (8) Specifications are subject of alteration without further notice.

Sound attenuation ΔL

Exhaust air diffuser HPKH + ATTS with 0 mm slot, 1:2 plenum boxDiffuser Connection ATTS Sound attenuation (dB)HPKH- inlet mm outlet mm 63 125 250 500 1000 2000 4000 8000160-4 125 160 23 12 9 14 19 16 13 15160-6 125 160 22 13 8 16 17 15 14 16200-4 160 200 24 11 8 14 14 10 14 14200-6 160 200 23 11 8 15 12 10 17 14250-6 200 250 18 7 8 13 10 10 13 14315-6 250 315 12 7 5 11 11 10 12 13400-6 315 400 12 5 6 7 9 10 10 14

Tolerance ± 6 3 2 2 2 2 2 3

Exhaust air diffuser HPKH with 0 mm slotHPKH- Sound attenuation K (dB)

63 125 250 500 1000 2000 4000 8000160-4 20 12 5 0 0 0 1 3160-6 21 12 5 3 1 1 1 3200-4 17 10 4 1 1 0 1 2200-6 17 10 3 2 1 0 1 2250-6 14 8 2 1 0 0 0 1315-6 12 7 3 1 0 0 0 1400-6 10 5 2 0 0 0 0 0

Tolerance ± 6 3 2 2 2 2 2 3

The average sound attenuation ΔL from duct to room including the orifice attenuation of the connecting duct in ceilinginstallation, is obtained in the table above.

More technical data can be found in our selection tool. Contact our nearest sales office for further information.

Exhaust air diffuser HPKH + Plenum box ATTS

Fläkt Woods 10020 GB 2017.11.07 6 (8) Specifications are subject of alteration without further notice.

Dimensions and weights

Exhaust air diffuser HPKH

s = 0 or 12 mm

Size A B C ØD H Opening Weight[mm] [mm] [mm] [mm] [mm] [mm] [kg]

160-4 395 399 425 159.3 58 410 2.2160-6 565 569 595 159.3 58 580 4.3200-4 395 399 425 199.3 58 410 2.1200-6 565 569 595 199.3 58 580 4.3250-6 565 569 595 249.3 58 580 4.2315-6 565 569 595 314.3 58 580 4.1400-6 565 569 595 393.3 66 580 4.1

HPKH + ATTS

HPKH Gmin [mm] Gmax [mm]1:1 ATTS 1:2 ATTS 1:1 ATTS 1:2 ATTS

160-4 295 270 325 300160-6 295 270 325 300200-4 335 295 365 325200-6 335 295 365 325250-6 385 335 415 365315-6 435 385 465 415400-6 - 435 - 465

Plenum box ATTS

Size ØD1 ØD2 H L W K Weight[mm] [mm] [mm] [mm] [mm] [mm] [kg]

125-160 124.3 160 170 340 300 133 2.1160-200 159.3 200 195 380 340 153 2.6200-250 199.3 250 235 480 380 178 3.6250-315 249.3 315 285 530 380 211 4.2315-400 314.3 400 335 530 480 253 5.4

Exhaust air diffuser HPKH + Plenum box ATTS

Fläkt Woods 10020 GB 2017.11.07 7 (8) Specifications are subject of alteration without further notice.

Execution and functionThe HPKH is a quiet, ceiling-mounted exhaust airdiffuser. The diffuser has an almost completely perforateddiffuser plate. The slot height of the diffuser can be setat 0 or 12 mm. Fixed to the diffuser body with magnets,the diffuser plate is easy to open. This exhaust air unitis suitable for both suspended ceiling systems and falseceilings built on site.

The ATTS plenum box features an extremely quietpatented measurement and adjustment damper formultipoint measuring with balanced and accuratevalues. The adjustment handle of the measurement andadjustment damper has a position indicator and a lockingdevice. The measurement and adjustment damper canbe easily removed for inspection and cleaning withoutchanging the setting. The diffuser connection collar isoutwards in the plenum box. The ATTS plenum box isapplicable for supply and exhaust air alike. In exhaust airuse, the position of the measuring hose is changed to themeasuring connector inside the box.

General

Material and surface finishBoth the diffuser and the plenum box are made from steelsheet.

The diffuser is powder-coated for a high surface finish.

The standard colour is RAL 9010. Other diffuser coloursand CleanVent coating are available on special order.

Installation, adjustment and maintenanceThe instructions for installation, adjustment andmaintenance are available at www.flaktwoods.com. Thek-factors for supply air are also provided on the plenumbox.

Technical data and designFor complete design details, please see the Fläkt Woodsproduct selection program. The program can be found onthe Internet at www.flaktwoods.com.

Product descriptionThe square exhaust air diffuser, HPKH by Fläkt Woodswith a plenum box, ATTS. The slot of the diffuser can beset at 0 or 12 mm. The diffuser plate, fixed to the diffuserbody with magnets, is easy to open. The ATTS plenumbox includes a quiet, easily removable measurement andadjustment damper (ZAEF).

Exhaust air diffuser HPKH + Plenum box ATTS

Fläkt Woods 10020 GB 2017.11.07 8 (8) Specifications are subject of alteration without further notice.

Product codeExhaust air diffuser HPKH-aaa-bExhaust air diffuser, CleanVent HPKH-aaa-b-CExhaust air diffuser, specialcolour HPKH-aaa-b-E

Size (aaa)160, 200, 250, 315, 400 (diffuser connection)Body size (b)4 = 425 x 4256 = 595 x 595CleanVent coated (C)Special colour (E)

Plenum box ATTS-aaa-bbb-c

Duct connection in mm (aaa)Diffuser connection in mm (bbb)Type (c)1 = collar outwards

AccessoriesFalse ceiling plate UTKZ-395for sizes 160-4 and 200-4(body size of diffuser 425 x 425)

Diffuser plate (from 9/2017) HPKZ-a-B

Body size of diffuser (a)4 = 425 x 4256 = 595 x 595