Ceiling Diffusers. Type DQ Type ADQ. recommended for room heights from 2.60 m to 4.00 m

Transcription

1 /10/EN/4 Ceiling Diffusers Type DQ Type ADQ recommended for room heights from.60 m to 4.00 m TROX GmbH Telephone +49/8 45/ 0-0 Telefax +49/8 45/0-65 Heinrich-Trox-Platz trox@trox.de D Neukirchen-Vluyn

2 Contents Description Description Construction Dimensions 3 Materials 3 Installation 3 Directions of Discharge 4 Nomenclature 5 Technical Data 5 Aerodynamic Data 6 Order Details 9 DQ - 1 DQ - DQ - 3 DQ - 4 Square or rectangular construction ceiling diffusers, either in aluminium (type ADQ) or steel (type DQ). Ideal for horizontal air discharge in a flat ceiling. The directions of discharge can be selected to meet the requirements of room geometry, with 1 to 4 ways available. These ceiling diffusers are suitable for both supply and extract air application.

3 Construction Dimensions Materials Installation Construction The type DQ and ADQ diffuser faces consist of a border with counterpunched holes and fixed blades for horizontal discharge. Available with 1 to 4 ways discharge face. Additional rear mounted opposed blade damper, operable from the front face is also available. Materials ADQ The diffuser face is in extruded aluminium sections natural anodised E6-C-0. The rear ancillaries are in formed sheet steel. The surfaces are phosphate treated and black stove-enamelled (RAL 9005). The installation subframe is rolled galvanised sheet steel. Materials DQ The diffuser face and rear-mounted ancillaries are in formed sheet steel. The surfaces are powder-coated white (RAL 9010) and the volume control damper stove enamelled black (RAL 9005). The installation subframe is rolled galvanised sheet steel. Installation The diffusers can be installed directly onto a duct section or with installation subframe, e.g. in masonry walls. For horizontal discharge, a flat ceiling is necessary. Standard sizes DQ - - A ADQ - - A DQ - - AG ADQ - - AG L x H L 1 x H 1 L x H in mm in mm in mm 473 x x x x x x x x x x x x ) 464 x x x 391 1) ) 564 x x x 491 1) ) 589 x x x 516 1) ) Particularly suitable for panel ceilings H/L H /L H/L H /L 5 H 1 /L 1 5 DQ - 1 ADQ-1 H 1 /L 1 DQ - 4 ADQ- 4 Opening size without installation subframe, H - 6 / L - 6 mm. 3

4 Directions of Discharge Effective Air Outlet Area Directions of Discharge L x H A eff.g A eff.t A eff.t A eff.t A eff.t in mm in m in m in m in m in m 1) 473 x ) H 1 ) ) ) ) ) ) 573 x L 1 DQ - 1, ADQ - 1 1) ) ) ) ) H 1 1) 673 x ) ) ) ) ) 873 x L 1 DQ -, ADQ - 1) ) ) ) 464 x ) ) ) 564 x ) H 1 ) ) 589 x ) ) ) See diagram 4 for aerodynamic data ) See diagram 3 for aerodynamic data L 1 DQ - 3, ADQ H 1 4 L 1 DQ - 4, ADQ - 4 4

5 Nomenclature Technical Data Correction Values for A eff.g A eff.g in m L WA / L W NC Nomenclature 1 Sound power level and pressure drop t in l/s: Total volume flow per diffuser t in m 3 /h: Total volume flow per diffuser in l/s: Volume flow in direction of discharge related in m 3 /h: to outlet areas,, and A in m: Spacing between two diffusers X in m: Distance between centre of diffuser and the wall H 1 in m: Distance between ceiling and occupied zone area ƒ H1 in m/s: Time average air velocity between two diffusers at distance H 1 from the ceiling L in m: Distance from diffuser L = X + H 1 ƒ L in m/s: Time average air velocity at the wall t Z in K: Temperature difference between supply and room air t L in K: Difference between core and room temperature at distance A/ + H 1 or L = X + H 1 A eff.g in m : Total effective outlet area A eff.t in m : Effective outlet area in direction of discharge i total airstream volume flow : Induction ratio = volume flow at diffuser discharge v eff in m/s: Effective jet velocity p t in Pa: Total pressure drop L WA in db(a): A-weighted sound power level L W NC : NC rating of sound power level L W NR : L W NR = L W NC + L pa, L pnc : A-weighting and NC rating of room sound pressure level L pa L WA 8 db L pnc L W NC 8 db Pressure drop p t in Pa H 1 in m L WNC V eff in m/s Air velocity between two diffusers ƒ L = 0.8 m/s L WA in db (A) Damper setting ƒ H1 in m/s 5

6 Aerodynamic Data Example Data given: Type ADQ - Distance from diffuser L = 10 m Total volume flow per diffuser t = 300 l/s Volume flow per direction of discharge t / = 150 l/s Air velocity ƒ L = 0.4 m/s Supply air temperature difference t Z = 6 K Diagram 3: A eff.t = m i = 17 t L / t Z = t L = x 6 = 7 K Table Page 4: A eff.t = m A eff.t m L x H = 873 x 64 mm Applicable L / H >.1 for DQ - 1 / ADQ - 1, and discharge directions, and Diagram 3 V [m 3 /h] = V [l/s] x 3.6 or t in l/s ƒ L in m/s V eff in m/s t L t Z A eff.g or A eff.t in m L or A in m t L t Z 6

7 Aerodynamic Data Applicable a) L / H <.1 for DQ - 1 / ADQ - 1, and discharge directions, and b) Discharge directions all cases Diagramm V [m 3 /h] = V [l/s] x 3.6 or t in l/s V eff in m/s ƒ L in m/s t L t Z A eff.g or A eff.t in m L or A in m 0.0 t L t Z 7

8 Aerodynamic Data Example Data given: Type ADQ - 4 / 673 x 464 Total volume flow per diffuser V t = 550 l/s Table page 4: A eff.g = m A eff. = m A eff. = m Diagram 5: V = 190 l/s V = 85 l/s Diagram 5 V [m 3 /h] = V [l/s] x 3.6 V t in l/s in l/s V 0.4 A eff.t in m A eff.g in m 8

9 Order Details Order Code These codes do not need to be completed for standard products / / / / / DQ --AG L x H M1 0 P1 RAL 9016 Type DQ ADQ not used state colour 1 Directions of discharge 3 4 Basic construction A Ancillaries AG 0 standard finish DQ RAL 9010 (GE 50 %) 1) ADQ E6-C-0 P1 Powder-coated to RAL 9006 (GE 30 %) 1) Other colours to RAL... (GE 70%) 1) Sizes available see page 3 0 without installation subframe M1 with installation subframe 1) GE = gloss level Specification Text Square or rectangular construction ceiling diffusers, suitable for horizontal air discharge, with 1 to 4 ways discharge, consisting of diffuser face with mitred perimeter border which is counter punched for screw fixing on site and has fixed blades for horizontal discharge, border has rear sealing strip. Optional rear mounted opposed blade volume control damper adjustable from the front face of the diffuser. Materials DQ: Diffuser face and volume control damper in formed sheet steel. The surface is powder-coated white (RAL 9010) and the volume control damper stove-enamelled black (RAL 9005), resistant to saturated environment for a minimum of 100 hours without deterioration (DIN ). Installation subframe in rolled galvanised sheet steel. Materials ADQ: Diffuser face in extruded aluminium section, natural anodised to E6-C-0, volume control damper in formed sheet steel, surface stove-enamelled black (RAL 9005), resistant to saturated environment for a minimum of 100 hours without deterioration (DIN ). Installation subframe in rolled galvanised sheet steel. Order Example Make: TROX Type: DQ - - AG / 573 x Design changes reserved All rights reserved TROX GmbH (8/008)