Long Throw Nozzle WDA
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1 Long Throw Nozzle WDA Ferdinand Schad KG Steigstraße D Kolbingen Telephone +49 (0) Fax +49 (0) info@schako.de
2 Contents Description...3 Construction... 3 Model... 3 Accessories... 3 Models and dimensions...4 Dimensions... 4 Dimensions of accessories... 5 Technical Data Pressure loss and noise level Maximum end velocity of jet Maximum penetration Induction ratios Temperature ratios Definitions Further data Connection diagrams of electric actuators Technical data of electric actuators Legend Ordering details Specification texts /18-2
3 Description A horizontal supply air pattern is often required for large, high rooms such as theatres, concert halls, production halls, etc. Long throw nozzles type WDA are particularly suitable for this application. Their low noise level allows a high blow velocity, resulting in correspondingly long throw distances. The nozzles are also well suited to vertical throws. Please note, however, that nozzles which are designed for heating mode can cause draughts in cooling mode. This can be avoided if the nozzles are designed for cooling mode. In this case, in heating mode, individual nozzles can be blanked off to achieve a higher exit velocity than that of the remaining ones, thus resulting in increased penetration. An alternative would be to design the nozzles based on maximum penetration during heating and to reduce the total air volume during ventilation, thus saving energy costs. We have also developed accessories for the nozzle in order to extend their possible uses. A swivel head allows you to move the nozzle by approx. 30 degrees in all directions. This does not affect the noise level or pressure loss. This adjustment can be done manually or electrically. The twist disks greatly reduce the penetration. In special cases, it is also possible to change the throw distances by selecting a different nozzle diameter (from the given standard nozzle diameter). For mounting in the ceiling or wall, inspection openings for the electrical connection must be provided on-site in sufficient number and size. Attention: Please note that for size 400 the connection pipe of the throw nozzles must be fitted on-site. The installation of WDA type into spiral ducts must take place free of stress. Avoid using unround or deformed spiral ducts, in order to protect the nozzle from distortion. Construction Connection pipe - Sheet steel painted to RAL 9010 (white) (WDA-F only) - Galvanised sheet steel (WDA-W and WDA-D) Nozzle part - Aluminum painted to RAL 9010 (white) (not possible for size 50) Sheet steel painted to RAL 9010 (white) (only sizes 80, 87, - 100) Mounting ring - Sheet steel painted to RAL 9010 (white) Saddle bracket - Galvanised sheet steel (WDA-...RA only) Model WDA WDA-F WDA-W WDA-D WDA-K WDA-RA WDA-W-RA Accessories - Nozzle without accessories (not available with swivel head) - for flexible duct connection - for spiral duct connection - for ceiling and wall mounting - for duct connection - for round duct connection (using saddle bracket) Not available with swivel head (not possible for size 400) - for round duct connection (using saddle bracket) Available with swivel head (not possible for size 400) Cover plate (-BR) - Sheet steel painted to RAL 9010 (white, standard) Twist disk (-DS 1/2) - Sheet steel painted to RAL 9005 (black) (sizes ) Damper (-DV) - Galvanized sheet steel with integrated perforated equalising grid (for supply air only) and fixing lugs Electric actuator (-E) - only available with swivel head (sizes ) - Actuator mounted externally (standard) - Actuator mounted internally (at an extra charge) (not possible for size 400) - E1, 230V AC, 3-point activation - E2, 24V AC, 0-10V (standard) - E3, 24V AC, 3-point activation Reduction piece (-RS) - Sheet steel painted to RAL 9010 (white) (only available with sizes of model WDA-F/W) Swivel head (-SK) - Sheet steel painted to RAL 9010 (white) (sizes 31-45, ) - Aluminum painted to RAL 9010 (white) (sizes ) Ball impact guard (-BS) - only WDA-D / WDA-K / WDA-D-SK / WDA-F-SK / WDA-K- SK possible with screw mounting (-SM). - steel painted to RAL 9010 (white) 05/18-3
4 Models and dimensions Dimensions Nozzle without accessories (not available with swivel head) WDA-W inter- WDA-F WDA-D WDA-K 1.) 3 x indentation for slotted shallowraised countersunkhead tapping screw DIN ISO 7051 pitch 3.9 Available sizes WDA / WDA-W / WDA-F / WDA-D / WDA-K / WDA-RA ød øa øe øf øg øk a L t P1 ød1 ød S L , * , ,5 23, * * x * upon request, larger diameters are also possible! 05/18-4
5 Dimensions of accessories Swivel head (-SK, size 50 not possible) The adjustment of the nozzle can be done manually or electrically. WDA-F-SK / WDA-D-SK 1.) 3 x indentation for slotted shallowraised countersunk-head tapping screw DIN ISO 7051 pitch 3.9 internal WDA-K-SK WDA-W-RA-SK (NW 400 not available) Available sizes WDA-...-SK ød øa øe øf øg øk a P H H1 M øb z S ød , * * * x * upon request, larger diameters are also possible! 05/18-5
6 Electric actuator (-E1/2/3, only available from size 63) Mounted externally (standard) A = Left-hand design (standard) 0V = nozzles on top Direction of rotation: "R" Duct installation B = Right-hand design. 0V = nozzles on top Direction of rotation "L" For an externally fitted actuator, please make sure that the distance to the ceiling or wall is greater than 10 mm. List of actuators Drive on the inside Drive on the outside in size in size E1 (230V AC, 3-Pkt.) Siemens GLB Belimo NM230A-F Belimo GM230A -E2 (Standard, 24V AC, 0-10V DC) Siemens GLB 163.2E Belimo NM24A-SR-F Belimo GM24A-SR -E3 (24V AC, 3-Pkt.) Siemens GLB 131.2E Belimo NM24A-F Belimo GM24A Section A-A WDA-D-SK-E / WDA-F-SK-E Section A-A WDA-K-SK-E Section A-A WDA-W-SK-E Section A-A WDA-W-RA-SK-E inter- 05/18-6
7 Mounted internally (at an extra charge, size 400 not possible): WDA-D-SK-E / WDA-F-SK-E WDA-K-SK-E WDA-W-SK-E WDA-W-RA-SK-E For WDA-W-RA-SK actuator internal / external no cover plate necessary! inter- Available sizes WDA-...-SK-E / WDA-W-RA-SK-E (mounted internally / mounted externally) ød P øa øg øe øf H H2 ød2 b S Actuator mounting external internal * * x x x 20 x * upon request, larger diameters are also possible! For size 400, an actuator cannot be mounted internally! 05/18-7
8 Reduction piece (-RS) (only available for sizes ) without swivel head / with or without swirl disc external Available sizes -RS ød L1 ød1 P ød øa J1 N1 øg øk E Twist disk (-DS 1/2) (only available for size ) Swirl discs no. 1 and 2 only differ by having different perforations. The twist disks can be mounted for all models. Available sizes -DS without swivel head / with or without swirl disc external L ød ød Damper (-DV) (only available for size 400) external 1.) 3 x indentation for slotted shallow-raised countersunk-head tapping screw DIN ISO 7051 pitch /18-8
9 Cover plate (-BR) (concealed mounting, only NW available) Mounting on site Available sizes -BR WDA-F WDA-D WDA-K WDA-F-SK WDA-D-SK WDA-K-SK WDA-F-SK-E WDA-D-SK-E (only available for NW ) WDA-W WDA-W-SK WDA-W-RA-SK øc b øc b /18-9
10 Ball impact guard (-BS) WDA-D-BS / WDA-K-BS The models WDA / WDA-W / WDA-F / WDA-RA are not available with ball impact guard. WDA-D-SK-BS / WDA-F-SK-BS Detail X 05/18-10
11 WDA-K-SK-BS The models WDA-W-SK / WDA-W-SK-RA / WDA-W-SK-E / WDA-W-SK-RA-E are not available with ball impact guard. Available sizes WDA-...-BS ød øa øc øe øf øg øk a P H L with electric actuator internal / external H WDA-K-SK-E-BS WDA-D-SK-E-BS WDA-F-Sk-E-BS internal external internal external /18-11
12 Technical Data Pressure loss and noise level WDA WDA WDA /18-12
13 Jet angle 1 WDA WDA WDA WDA WDA WDA 63 twist disk no WDA 63 twist disk no WDA WDA 80 twist disk no WDA 80 twist disk no WDA WDA 87 twist disk no WDA 87 twist disk no WDA WDA 100 twist disk no WDA 100 twist disk no WDA WDA 125 twist disk no WDA 125 twist disk no WDA WDA 160 twist disk no WDA 160 twist disk no WDA WDA 175 twist disk no WDA 175 twist disk no WDA WDA 200 twist disk no WDA 200 twist disk no Correction factor for twist disk WDA DS x 0.80 x 0.72 x 0.62 x 0.59 x 0.76 x 0.69 x 0.65 x 0.62 v max 2 x 0.65 x 0.40 x 0.35 x 0.31 x 0.64 x 0.57 x 0.53 x x 0.93 x 0.75 x 0.70 x 0.62 x 0.91 x 0.84 x 0.80 x 0.76 y H 2 x 0.65 x 0.30 x 0.25 x 0.27 x 0.84 x 0.77 x 0.72 x 0.67 y 1 x 1.10 x 1.30 x 1.60 x 1.60 x 1.20 x 1.40 x 1.60 x x 1.50 x 3.50 x 3.90 x 3.70 x 1.40 x 1.70 x 2.00 x 2.20 TV 1 x 0.67 x 0.64 x 0.65 x 0.56 x 0.69 x 0.68 x 0.67 x x 0.60 x 0.54 x 0.49 x 0.38 x 0.59 x 0.55 x 0.54 x 0.49 i 1 x 1.20 x 1.40 x 1.50 x 1.70 x 1.30 x 1.40 x 1.50 x x 1.60 x 2.60 x 2.80 x 3.20 x 1.50 x 1.70 x 1.90 x x 1.04 x 1.08 x 1.10 x 1.15 x 1.03 x 1.10 x 1.13 x 1.20 p t 2 x 1.10 x 1.30 x 1.42 x 1.69 x 1.06 x 1.14 x 1.20 x L WA , ,5 05/18-13
14 WDA-...-RS, with reduction piece Correction factor for twist disk WDA-...-RS DS x 1,02 x 1,09 x 1,17 x 1,21 x 1,06 x 1,065 x 1,08 x 1,11 p t 2 x 1,09 x 1,25 x 1,33 x 1,54 x 1,12 x 1,12 x 1,17 x 1, ,5 +4,5 +4, L WA , , /18-14
15 WDA 400 (without damper) WDA 400, damper OPEN 100 % WDA 400, damper OPEN 75 % WDA 400, damper OPEN 50 % 05/18-15
16 Maximum end velocity of jet WDA WDA WDA v average = v max x /18-16
17 Maximum penetration WDA WDA WDA /18-17
18 Model for vertical nozzle mounting for cooling mode Correction factors of the expected average velocity in vertical installation of the nozzles T [K] without twist disk with twist disk no. 1 with twist disk no ,3 0,26 0,19-6 0,4 0,31 0,24-8 0,5 0,36 0, ,6 0,43 0,33 Calculation of the average velocity, relative to the T for vertically integrated nozzles. Example: WDA 200 at 250 m³/h, mounting height = 9.5 m, T = - 6 K: Head height = 9.5 m m = 7.7 m y (m) would be 7.7 m according to SCHAKO's design program; since the nozzle is mounted horizontally according to the design program,, the y value for vertically integrated nozzles must be entered under x (m)! x = 7.7 m According to the program, the maximum velocity in the isothermic state is m/s at head height. Taking into account a correction factor of 0.4 at - 6 K without twist disk, this gives an average velocity of m/s x 0.4 = m/s. Result: WDA 200 at 250 m³/h, mounting height = 9.5 m, delta T = - 6 K, V average = m/s at head height If the velocity is too high, simply calculate again using the correction factors of twist disk no. 1 or 2. 05/18-18
19 Induction ratios WDA WDA WDA /18-19
20 Temperature ratios WDA WDA WDA /18-20
21 Definitions Cooling mode Cooling mode example Assume: 100 V ZU = 250 m³/h x = 15 m T O = 8 K Solution: L WA = 21,64 db(a) p t = 54,42 Pa v max = 0,394 m/s TV = 0,033 i = 47,43 Example of an isotherm Assume: 100 V ZU = 250 m³/h x = 15 m Solution: L WA = 21,64 db(a) p t = 54,52 Pa v max = 0,394 m/s TV = 0,033 i = 47,43 Heating mode Heating mode example Assume: 100 H = 20 V ZU = 250 m³/h x 1 = 15 m T O = 8 K Solution: L WA = 21,64 db(a) p t = 54,52 Pa v max = 0,394 m/s y = 7,84 m y H = 8,67 m TV = 0,033 i = 47,43 05/18-21
22 Further data Horizontal throw (free jet) WDA WDA /18-22
23 WDA /18-23
24 Connection diagrams of electric actuators Make Belimo OPEN/CLOSED control N L point control N L1 - + Make Siemens (-E1) GLB E three-point control on-site 0 on-site optional optional Make Belimo (standard) (-E2) NM24A-SR-F / GM24A-SR Make Siemens (standard) (-E2) GLB E steady control - + Y DC V U DC V on-site Make Siemens (-E3) GLB E three-point control optional optional 05/18-24
25 Technical data of electric actuators Make Belimo (-E1) NM230A-F Rated voltage: AC V, 50 / 60 Hz Functional range: AC V Power consumption - Operation: 2.5 rated torque - Idle position 0.6 W - Dimensioning: 6 VA Torque (rated torque): min 10 Nm at the rated voltage Running time: 150 s Sound power level max. 35 db(a) Protection class: II protective insulation Protection type: IP54 in all mounting positions EMC: CE according to 89 / 336 / EEC Low voltage directive: CE according to 73 / 23 / EEC Ambient temperature: C Make Belimo (-E2) NM24A-SR-F Rated voltage: AC / DC 24 V, 50 / 60 Hz Functional range: AC / DC 19, V Power consumption - Operation: 2 rated torque - Idle position 0.4 W - Dimensioning: 4 VA Torque (rated torque): min 10 Nm at the rated voltage Activation - Actuator signal Y: DC V, input resistance typically 100 k - Operating range: DC V Positional feedback (Measuring voltage U): DC V, max. 1 ma Running time: 150 s Sound power level max. 35 db(a) Protection class: III Safety extra low voltage Protection type: IP54 in all mounting positions EMC: CE according to 89 / 336 / EEC Ambient temperature: C Make Belimo (-E3) NM24A-F Rated voltage: AC / DC 24 V, 50 / 60 Hz Functional range: AC / DC 19, V Power consumption - Operation: 1.5 rated torque - Idle position 0.2 W - Dimensioning: 3.5 VA Torque (rated torque): min 10 Nm at the rated voltage Running time: 150 s Sound power level max. 35 db(a) Protection class: III Safety extra low voltage Protection type: IP54 in all mounting positions EMC: CE according to 89 / 336 / EEC Ambient temperature: C Make Siemens (-E1) GLB E / (-E2) GLB E (standard) / (-E3) GLB E Supply AC 24 V (SELV / PELV) -Operating voltage / Frequency -Power consumption GLB GLB16..2 lifting rod is moving -GLB16..2 stopping state Supply AC/DC 230 V -Operating voltage / Frequency -Power consumption GLB33..2 Functional data -Nominal lifting power -Running time for 60 m stroke: Actuator signal Y for GLB Input voltage (wires 8-2) -Max. allowed input voltage Position detector for GLB Output voltage (wires 9-2) -Max. output current AC 24 V ±20 % / 50 / 60 Hz 2 VA / 1 W 3 VA / 2 W 1 W AC 230 V ±10 % / 50 / 60 Hz 2 VA / 1 W 250 N 150 s (50 Hz) / 125 s (60 Hz) DC V, internally limited to DC 10 V DC 35 V DC V / DC V DC ± 1 ma Housing protection type - Protection type according to DIN (Observe mounting information) IP 40 Protection class: -Insulation protection class EN Environmental conditions -Temperature C / C 05/18-25
26 Make Belimo (-E1) GM230A Rated voltage: AC V, 50 / 60 Hz Functional range: AC V Power consumption - Operation: 4 rated torque - Idle position 2 W - Dimensioning: 7 VA Torque (rated torque): min 40 Nm at the rated voltage Running time: 150 s Sound power level max. 45 db(a) Protection class: II protective insulation Protection type: IP54 in all mounting positions EMC: CE according to 89 / 336 / EEC Low voltage directive: CE according to 73 / 23 / EEC Ambient temperature: C Make Belimo (-E3) GM24A Rated voltage: AC / DC 24 V, 50 / 60 Hz Functional range: AC / DC V Power consumption - Operation: 4 rated torque - Idle position 2 W - Dimensioning: 6 VA Torque (rated torque): min 40 Nm at the rated voltage Running time: 150 s Sound power level max. 45 db(a) Protection class: III Safety extra low voltage Protection type: IP54 in all mounting positions EMC: CE according to 89 / 336 / EEC Ambient temperature: C Make Belimo (-E2) GM24A-SR Rated voltage: AC / DC 24 V, 50 / 60 Hz Functional range: AC / DC V Power consumption - Operation: 4.5 rated torque - Idle position 2 W - Dimensioning: 7 VA Torque (rated torque): min 40 Nm at the rated voltage Activation - Actuator signal Y: DC V, input resistance typically 100 k - Operating range: DC V Positional feedback (Measuring voltage U): DC V, max. 1 ma Running time: 150 s Sound power level max. 45 db(a) Protection class: III Safety extra low voltage Protection type: IP54 in all mounting positions EMC: CE according to 89 / 336 / EEC Ambient temperature: C 05/18-26
27 Legend V ZU (m³/h) [l/s] = Supply air volume V X (m³/h) [l/s] = total air jet volume at point x x+y (m) = horizontal and vertical throw x (m) = horizontal throw y (m) = vertical throw DEH (m) = Nozzle mounting height Z (m) = horizontal distance from the nozzle to the intersection of two jets S = approx. length of throw (isotherm) AB = Occupied area K ( ) = Angle of throw in cooling mode H ( ) = Angle of throw in heating mode p t (Pa) = Pressure loss T O (K) = Temperature difference between supply air temperature and room temperature ( T O = t ZU - t R ) T OH (K) = Temperature difference between air supply and room temperature in heating mode ( T OH = t ZUH - t RH ) T X (K) = Temperature difference at point x t ZU (K) = Supply air temperature t R (K) = Room temperature L WA [db(a)] = A-weighted sound power level v max (m/s) = Maximum end velocity of jet v mittel (m/s) = Average end velocity of jet y H (m) = Maximum penetration in heating mode TV = Temperature ratio (TV = T X / T O ) i (-) = Induction ratio (i = V X / V ZU ) (kg/m³) = Density DS = twist disk (mm) = Nominal width He (m) = Heating Kü (m) = Cooling 05/18-27
28 Ordering details Long throw nozzle type WDA for duct installation (with saddle bracket) -RA (size 400 not possible) only nozzle - for flexible duct connection -F for spiral duct connection -W for installation in ceilings and walls -D for duct installation -K for duct installation (with saddle bracket) W-RA (size 400 not possible) without swivel head - with swivel head -SK NW 400 Accessories: twist disk (s available) -DS 1 2 Reduction piece (only available for sizes ) -RS Ballschutzkorb -BS for WDA-D / WDA-K / WDA-D-SK / WDA-F-SK / WDA-K-SK only (NW only) Damper -DV (for size 400) right R external Electric actuator (only sizes ) left L internal (NW 400 not available) Cover plate for WDA-D / WDA-F / WDA-W / WDA-K / WDA-D-SK / WDA-F-SK / WDA-W-SK / WDA-W-RA-SK / WDA-K-SK / WDA-D-SK-E / WDA-F-SK-E only -BR (only available for NW ) 230 V AC (3-point activation) -E1 24 V AC 0-10 V -E2 24 V AC (3-point activation) -E3 Order example WDA-D-SK-100 Unless stated otherwise, the thick-frame model will be delivered! 05/18-28
29 Specification texts Long throw nozzle for air-conditioning of large and high rooms, such as halls, theatres or concert halls. The cone-shaped body of the nozzle increases air velocity ensuring a stable core jet. This results in very long throws. The dynamic internal construction of the jet nozzle allows a very high exit velocity at low noise levels and high induction. The technical data is secured and guaranteed by measurements and documentation in Schako's own fluid dynamics and acoustics laboratory. Suitable for cooling and heating modes. A wide range of connection and installation options such as wall, ceiling, duct or pipes. Consists of the nozzle part made of aluminum (size and ) or sheet steel (size ) each painted with a high-quality powder coating to a RAL colour (RAL 9010, white, standard). Suitable for use in VAV systems. NW Volumetric flows in m³/h at: 35 db(a) 40 db(a) Product: SCHAKO type WDA - for flexible duct connection, with mounting ring and connection pipe Product: SCHAKO type WDA-F - for spiral duct connection, with mounting ring and connection pipe. Product: SCHAKO type WDA-W - for ceiling / wall mounting, with mounting ring and connection pipe. Product: SCHAKO type WDA-D - for duct installation, with mounting ring. Product: SCHAKO type WDA-K - for duct connection, with saddle bracket, not available with swivel head (size 400 not possible) Product: SCHAKO type WDA-RA - for duct connection, with saddle bracket, available with swivel head (size 400 not possible) Product: SCHAKO type WDA-W-RA Accessories: - Swivel head (-SK) for adjusting air outlet direction, without any change in the pressure loss or noise level, consisting of: - sheet steel painted with a high-quality powder coating to the RAL colour of the nozzle (standard RAL 9010, white). (sizes and ) - aluminium painted with a high-quality powder coating to the RAL colour of the nozzle (standard RAL 9010, white). (size ). - Twist disk (-DS) consisting of sheet steel painted with a highquality powder coating to RAL 9005 (black) which increases induction, reducing length of throw and end velocities of jet (sizes ). Model 1 or 2 - Reduction piece (-RS) for connecting small pipe diameters, made of sheet steel painted with a high-quality powder coating to the colour of the nozzle (only available with sizes of model WDA-F/W). - electric actuator (only available with swivel head sizes ) - Actuator mounted externally (standard) - Actuator mounted internally (at an extra charge) (not possible for size 400) - E1 (230 V AC, 3-point activation) - E2 (24 V AC, 0-10V; standard) - E3 (24 V AC, 3-point activation) - Cover plate (-BR) for covering the fixing and fastening screws, made of sheet steel painted with a high-quality powder coating in the same color as the nozzle (only NW available). - Damper (-DV), for manual volumetric flow adjustment, made of galvanised sheet steel (size 400 only) - Ball impact guard (-BS), made of steel painted with a highquality powder coating to RAL 9010 (white) (for WDA-D / WDA-K / WDA-D-SK / WDA-F-SK / WDA-K-SK only) (NW only). 05/18-29
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