Application
Special features
High induction results in a rapid reduction of the supply air to room air temperature difference and airflow velocity
Nominal sizes
Variants
Connection on
Accessories
Lip seal
Attachments
Construction features
Square plenum boxes and plenum boxes with vertical connection
Circular plenum boxes with horizontal spigot for nominal sizes 250, 400L, 400H and 600
Plenum box for supply air, with an optimised equalising element that ensures a uniform airflow through the diffuser face
Simple installation of the diffuser face due to central fixing screw with cap
Plenum box for supply air, with an optimised equalising element that ensures a uniform airflow through the diffuser face
Simple installation of the diffuser face due to central fixing screw with decorative cap
Materials and surfaces
Diffuser face coated RAL 9010, pure white
Standards and guidelines
Maintenance
Ceiling swirl diffusers in air conditioning systems create a swirl to supply air to rooms. The resulting airflow induces high levels of room air, thereby rapidly reducing the airflow velocity and the temperature difference between supply air and room air. Ceiling swirl diffusers allow for large volume flow rates. The result is a mixed flow ventilation in comfort zones, with good overall room ventilation, creating only very little turbulence in the occupied zone.
Type VDW ceiling swirl diffusers have adjustable air control blades. The airflow direction can be adjusted to meet various local requirements. Horizontal air distribution consists of one-way, two-way or omni-directional flow. Vertical air discharge is possible but only for heating. The supply air to room air temperature difference may range from –12 to +10 K.
A damper blade (optional) simplifies volume flow rate balancing for commissioning. Pressure tap and cord-operated damper blade (optional) allow for volume flow rate balancing with the diffuser face in place.
To give rooms an aesthetic, uniform look, Type VDW diffusers may also be used for extract air. Air control blades are not required for extract air applications.
Nominal sizes | 300, 400, 500, 600, 625, 825 mm |
Minimum volume flow rate, with Δtz = -6 K | 7 – 99 l/s or 25 – 357 m³/h |
Maximum volume flow rate, with LWA ≅ 50 dB(A) | 80 – 470 l/s or 288 – 1692 m³/h |
Supply air to room air temperature difference | -12 – 10 K |
Quick sizing tables provide a good overview of the volume flow rates and corresponding sound power levels and differential pressures. The minimum volume flow rates apply to a supply air to room air temperature difference of –6 K. The maximum volume flow rates apply to a sound power level of approx. 50 dB (A) with damper blade position 0°. Exact values for all parameters can be determined with our Easy Product Finder design program.
VDW-*-Z-H (supply air), sound power level and total differential pressure
NS | qv [l/s] | qv [m³/h] | 0° | 45° | 90° | |||
---|---|---|---|---|---|---|---|---|
Δpt [Pa] | LWA [dB(A)] | Δpt [Pa] | LWA [dB(A)] | Δpt [Pa] | LWA [dB(A)] | |||
300 × 8 | 7 | 26 | 1 | <15 | 1 | <15 | 1 | <15 |
300 × 8 | 35 | 108 | 12 | 20 | 14 | 20 | 22 | 21 |
300 × 8 | 60 | 198 | 41 | 38 | 46 | 38 | 74 | 39 |
300 × 8 | 85 | 288 | 87 | 50 | 98 | 51 | 157 | 52 |
400 × 16 | 13 | 46 | 1 | <15 | 1 | <15 | 1 | <15 |
400 × 16 | 60 | 198 | 11 | 21 | 13 | 20 | 26 | 20 |
400 × 16 | 100 | 360 | 38 | 39 | 44 | 40 | 85 | 40 |
500 × 24 | 70 | 252 | 10 | 18 | 14 | 21 | 35 | 24 |
500 × 24 | 125 | 450 | 31 | 36 | 45 | 40 | 112 | 43 |
500 × 24 | 175 | 648 | 65 | 50 | 94 | 54 | 233 | 59 |
600 × 24, 625 × 24 | 28 | 102 | 1 | <15 | 1 | <15 | 2 | <15 |
600 × 24, 625 × 24 | 105 | 360 | 10 | 22 | 13 | 23 | 30 | 26 |
600 × 24, 625 × 24 | 165 | 612 | 28 | 38 | 38 | 40 | 87 | 43 |
600 × 24, 625 × 24 | 260 | 864 | 56 | 50 | 75 | 54 | 174 | 57 |
600 × 48 | 40 | 145 | 1 | <15 | 2 | <15 | 4 | <15 |
600 × 48 | 130 | 432 | 10 | 22 | 16 | 26 | 39 | 31 |
600 × 48 | 210 | 720 | 27 | 38 | 43 | 44 | 109 | 48 |
600 × 48 | 305 | 1008 | 53 | 50 | 85 | 58 | 214 | 63 |
625 × 54 | 140 | 468 | 10 | 23 | 16 | 26 | 42 | 33 |
625 × 54 | 225 | 756 | 27 | 38 | 42 | 44 | 109 | 49 |
625 × 54 | 310 | 1044 | 51 | 50 | 81 | 59 | 208 | 62 |
825 × 72 | 99 | 357 | 3 | <15 | 4 | <15 | 10 | <15 |
825 × 72 | 225 | 756 | 11 | 25 | 17 | 27 | 46 | 28 |
825 × 72 | 470 | 1692 | 47 | 50 | 70 | 55 | 193 | 54 |
0°, 45°, 90°: Damper blade position
VDW-*-Z-V (supply air), sound power level and total differential pressure
NS | qv [l/s] | qv [m³/h] | 0° | 45° | 90° | |||
---|---|---|---|---|---|---|---|---|
Δpt [Pa] | LWA [dB(A)] | Δpt [Pa] | LWA [dB(A)] | Δpt [Pa] | LWA [dB(A)] | |||
300 × 8 | 7 | 26 | 1 | <15 | 1 | <15 | 1 | <15 |
300 × 8 | 30 | 108 | 12 | 20 | 14 | 20 | 22 | 21 |
300 × 8 | 55 | 198 | 41 | 38 | 46 | 38 | 74 | 39 |
300 × 8 | 80 | 288 | 87 | 50 | 98 | 51 | 157 | 52 |
400 × 16 | 13 | 46 | 1 | <15 | 1 | <15 | 1 | <15 |
400 × 16 | 55 | 198 | 11 | 21 | 13 | 20 | 26 | 20 |
400 × 16 | 100 | 360 | 38 | 39 | 44 | 40 | 85 | 40 |
400 × 16 | 140 | 504 | 74 | 50 | 86 | 51 | 167 | 52 |
500 × 24 | 19 | 70 | 1 | <15 | 1 | <15 | 3 | <15 |
500 × 24 | 70 | 252 | 10 | 18 | 14 | 21 | 35 | 24 |
500 × 24 | 125 | 450 | 31 | 36 | 45 | 40 | 112 | 43 |
500 × 24 | 180 | 648 | 65 | 50 | 94 | 54 | 233 | 59 |
600 × 24, 625 × 24 | 28 | 102 | 1 | <15 | 1 | <15 | 2 | <15 |
600 × 24, 625 × 24 | 100 | 360 | 10 | 22 | 13 | 23 | 30 | 26 |
600 × 24, 625 × 24 | 170 | 612 | 28 | 38 | 38 | 40 | 87 | 43 |
600 × 24, 625 × 24 | 240 | 864 | 56 | 50 | 75 | 54 | 174 | 57 |
600 × 48 | 40 | 145 | 1 | <15 | 2 | <15 | 4 | <15 |
600 × 48 | 120 | 432 | 10 | 22 | 16 | 26 | 39 | 31 |
600 × 48 | 200 | 720 | 27 | 38 | 43 | 44 | 109 | 48 |
600 × 48 | 280 | 1008 | 53 | 50 | 85 | 58 | 214 | 63 |
625 × 54 | 52 | 186 | 2 | <15 | 3 | <15 | 7 | <15 |
625 × 54 | 130 | 468 | 10 | 23 | 16 | 26 | 42 | 33 |
625 × 54 | 210 | 756 | 27 | 38 | 42 | 44 | 109 | 49 |
625 × 54 | 290 | 1044 | 51 | 50 | 81 | 59 | 208 | 62 |
825 × 72 | 99 | 357 | 3 | <15 | 4 | <15 | 10 | <15 |
825 × 72 | 210 | 756 | 11 | 25 | 17 | 27 | 46 | 28 |
825 × 72 | 320 | 1152 | 26 | 39 | 39 | 42 | 107 | 42 |
825 × 72 | 430 | 1692 | 47 | 50 | 70 | 55 | 193 | 54 |
0°, 45°, 90°: Damper blade position
Specification text
Ceiling swirl diffusers with square or circular diffuser face. Supply air and extract air variants for comfort zones, for a maximum air change rate of 35 per hour. Diffuser face with individually manually adjustable air control blades for horizontal swirling supply air discharge creating high induction levels. For installation into all types of suspended ceilings. Ready-to-install component consisting of the diffuser face with radially arranged, individually adjustable black or white set of air control blades and a plenum box, which is also square in the case of square faceplates (-Q) and round in the case of rounded faceplates (-R). The plenum box has an equalising element for supply air. The plenum box always includes a horizontally or vertically arranged spigot, cross bar and drilled holes or suspension lugs for suspension. The diffuser face is fixed to the cross bar with a central screw, concealed by a decorative cap. Spigot suitable for ducts to EN 1506 or EN 13180. Sound power level of the air-regenerated noise measured according to EN ISO 5135.
Special features
High induction results in a rapid reduction of the supply air to room air temperature difference and airflow velocity
Materials and surfaces
Diffuser face coated RAL 9010, pure white
Technical data
Life cycle assessment
A life cycle assessment is available for the product series in form of an Environmental Product Declaration (EPD) that has been checked and published by a programme holder.
VDW | – | Q | – | Z | – | H | – | M | – | L | / | 500 × 24 | / | Q21 | / | P1 - RAL 9016 |
| | | | | | | | | | | | | | | | | | ||||||||
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
Order example: VDW–Q–Z–H–MN–L/600×24/Q21/P1–RAL 9006
Style | Square |
Air conditioning system | Supply air |
Connection on | horizontal |
Damper unit for volume flow rate balancing | With cord and pressure tap |
Accessories | Lip seal |
Nominal size | 600 × 24 |
Colour of air control elements | White |
Exposed surface | RAL 9006, white aluminium, GU30 |
Style | Circular |
Air conditioning system | Supply air |
Connection on | horizontal |
Damper unit for volume flow rate balancing | None |
Accessories | None |
Nominal size | 400 × 16 |
Colour of air control elements | Black |
Exposed surface | RAL 9010, pure white, GU50 |
Nominal sizes
Accessories
Construction features
VDW-Q-*-V
Variants
Nominal sizes
Accessories
Construction features
VDW-R-*-H
Variants
Nominal sizes
Accessories
Construction features
VDW-R-*-V
Variants
Nominal sizes
Accessories
Construction features
VDW-Q-*-H
NS | □Q₁ | H₁ | □Q₃ | H₃ | ∅D | A | C | ① | m |
---|---|---|---|---|---|---|---|---|---|
kg | |||||||||
300 × 8 | 310 | 8 | 290 | 250 | 158 | 139 | 50 | AK-Uni-001 | 3.7 |
400 × 16 | 398 | 8 | 372 | 295 | 198 | 164 | 50 | AK-Uni-002 | 5.7 |
500 × 24 | 498 | 8 | 476 | 295 | 198 | 164 | 50 | AK-Uni-003 | 7.8 |
600 × 24 | 598 | 8 | 567 | 345 | 248 | 199 | 48 | AK-Uni-004 | 11.1 |
600 × 48 | 598 | 8 | 590 | 345 | 248 | 189 | 48 | AK-Uni-005 | 11.4 |
625 × 24 | 623 | 8 | 567 | 345 | 248 | 199 | 48 | AK-Uni-004 | 11.3 |
625 × 54 | 623 | 8 | 615 | 345 | 248 | 189 | 48 | AK-Uni-006 | 12 |
825 × 72 | 825 | 8 | 806 | 410 | 313 | 222 | 50 | AK-Uni-007 | 21.2 |
NS | □Q₁ | H₁ | ∅D₃ | H₃ | ∅D | C | m |
---|---|---|---|---|---|---|---|
kg | |||||||
300 × 8 | 310 | 8 | 275 | 200 | 158 | 50 | 2.7 |
400 × 16 | 398 | 8 | 364 | 200 | 198 | 50 | 4.2 |
500 × 24 | 498 | 8 | 462 | 200 | 198 | 50 | 6 |
600 × 24 | 598 | 8 | 559 | 200 | 248 | 48 | 8.4 |
600 × 48 | 598 | 8 | 575 | 300 | 248 | 48 | 9.6 |
625 × 24 | 623 | 8 | 559 | 200 | 248 | 48 | 8.6 |
625 × 54 | 623 | 8 | 600 | 300 | 248 | 48 | 10.3 |
825 × 72 | 825 | 8 | 796 | 300 | 313 | 50 | 16.2 |
Weights apply to the supply air variant
NS | □Q₁ | ∅D₂ | n | Aeff |
---|---|---|---|---|
m² | ||||
300 × 8 | 310 | 269 | 8 | 0.0070 |
400 × 16 | 398 | 352 | 16 | 0.0140 |
500 × 24 | 498 | 440 | 24 | 0.0210 |
600 × 24 | 598 | 546 | 24 | 0.0295 |
600 × 48 | 598 | 568 | 48 | 0.0390 |
625 × 24 | 623 | 546 | 24 | 0.0295 |
625 × 54 | 623 | 594 | 54 | 0.0470 |
825 × 72 | 825 | 773 | 72 | 0.0730 |
NS | ∅D₁ | H₁ | H₃ | ∅D₃ | ∅D | A | ① | m |
---|---|---|---|---|---|---|---|---|
kg | ||||||||
300 × 8 | 300 | 8 | 243 | 274 | 158 | 139 | AKR-01 | 2.1 |
400 × 16 | 400 | 8 | 290 | 363 | 198 | 166 | AKR-02 | 3.3 |
500 × 24 | 500 | 8 | 290 | 461 | 198 | 166 | AKR-03 | 4.5 |
600 × 24 | 600 | 8 | 344 | 574 | 248 | 195 | AKR-05 | 6.4 |
600 × 48 | 600 | 8 | 344 | 574 | 248 | 195 | AKR-05 | 6.7 |
625 × 24 | 625 | 8 | 344 | 574 | 248 | 195 | AKR-05 | 6.6 |
Weights apply to the supply air variant
NS | ∅D₁ | H₁ | ∅D₃ | H₃ | ∅D | C | m |
---|---|---|---|---|---|---|---|
kg | |||||||
300 × 8 | 300 | 8 | 275 | 200 | 158 | 50 | 2.5 |
400 × 16 | 400 | 8 | 364 | 200 | 198 | 50 | 3.9 |
500 × 24 | 500 | 8 | 462 | 200 | 198 | 50 | 5.6 |
600 × 24 | 600 | 8 | 559 | 200 | 248 | 48 | 7.5 |
600 × 48 | 600 | 8 | 575 | 300 | 248 | 48 | 8.7 |
625 × 24 | 625 | 8 | 559 | 200 | 248 | 48 | 7.7 |
NS | ∅D₁ | ∅D₂ | n | Aeff |
---|---|---|---|---|
m² | ||||
300 × 8 | 300 | 269 | 8 | 0.0070 |
400 × 16 | 400 | 352 | 16 | 0.0140 |
500 × 24 | 500 | 440 | 24 | 0.0210 |
600 × 24 | 600 | 546 | 24 | 0.0295 |
600 × 48 | 600 | 568 | 48 | 0.0390 |
625 × 24 | 625 | 546 | 24 | 0.0295 |
n = no. of air control blades
Installation and commissioning
These are only schematic diagrams to illustrate installation details.
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За контакти
Ние сме тук за Вас
Моля, уточнете съобщението си и типа на искането
Тел.: +359 2 981 25 74 | Факс: +359 2 986 20 65
За контакти
Благодарим Ви за Вашето съобщение!
Вашето съобщение е изпратено и ще бъде обработено в кратък срок.
Нашият отдел за Обслужване-Искания ще се свърже с Вас възможно най-скоро.
За общи въпроси относно продукти или услуги можете да се свържете също с:
Тел.: +359 2 981 25 74 | Факс: +359 2 986 20 65