DATASHEET PRODUCT CODE EXAMPLE:

Transcription

1 214 NOZZLES ECSOR DK STBZ-0 / DR DATASHEET PRODUCT FACTS Nozzle devices DK (Short Nozzle) & DR (Long Nozzle) Intended for installation in a connection box, in a duct or behind a wall Adjustable diffusion pattern Suitable for public premises Broad flow range and low sound level GENERAL INFORMATION DK and DR nozzle devices are intended for public premises with a large room volume. The long throw gives very effective air diffusion. The devices, which are made of aluminium, have an adjustable diffusion angle of 30 degrees. All types, are available in two installation alternatives: for assembling on flat surface or at the end of circular duct. The nozzles can be used individually or in series for an extra high overall efficiency. The devices are suitable for premises such as entertainment premises, market halls, sports halls, lecture halls, industrial buildings, etc. The low overall sound level also means that the devices can be used in concert halls, conference premises, television and/or radio studios. Devices with a short nozzle (DK) can be supplied with and without a painted finish. Devices with a long nozzle (DR) can be supplied in three different surface finishes, unpainted, painted or anodized aluminium. All devices can be supplied painted in an optional RAL colour. The device can be wiped down with a mild detergent. PRODUCT CODE Nozzle devices DK, DR Intended for installation in a connection box, in a duct or behind a wall Adjustable diffusion pattern Suitable for public premises Broad flow range and low sound level PRODUCT CODE EXAMPLE: Nozzle device DKBA Device of size 08 dedicated for mounting on flat surface, painted in colour RAL 9010.

2 215 NOZZLE DEVICE DK, DR SIZE 04 THROW SIZE 04 PRESSURE DROP AND SOUND LEVEL Diffusion angle for the nozzle = 30 Installation height, min - max = m Min distance between devices = 120 mm

3 216 NOZZLE DEVICE DK, DKOA, DR SIZE 05 THROW SIZE 05 PRESSURE DROP AND SOUND LEVEL Diffusion angle for the nozzle = 30 Installation height, min - max = m Min distance between devices = 150 mm

4 217 NOZZLE DEVICE DK, DR SIZE 08 THROW SIZE 08 PRESSURE DROP AND SOUND LEVEL Diffusion angle for the nozzle = 30 Installation height, min - max = m Min distance between devices = 240 mm

5 218 NOZZLE DEVICE DK, DKOA, DR SIZE 12 THROW SIZE 12 PRESSURE DROP AND SOUND LEVEL Diffusion angle for the nozzle = 30 Installation height, min - max = m Min distance between devices = 360 mm

6 219 NOZZLE DEVICE DK, DR SIZE 15 THROW SIZE 15 PRESSURE DROP AND SOUND LEVEL Diffusion angle for the nozzle = 30 Installation height, min - max = m Min distance between devices = 450 mm

7 220 NOZZLE DEVICE DK, DKOA, DR SIZE 20 THROW SIZE 20 PRESSURE DROP AND SOUND LEVEL Diffusion angle for the nozzle = ±30 Installation height, min - max = m Min distance between devices = 550 mm

8 221 THROW, DIFFUSION PATTERN THROW FOR HEATING AND COOLING FUNCTION q, l/s q, m 3 /h x, m Size y, m Max temperature difference for heating: t v +8 K Max temperature difference for cooling: t k 8 K t, K THROW, DIFFUSION PATTERN Heating α =0 y [m] α x =x/cosα y [m Cooling y [m] x [m] x [m]

9 222 ACOUSTICAL DATA, INSTALLATION ALTERNATIVE DEFINITIONS INSTALLATION ALTERNATIVES q air flow l/s, m 3 /h p t total pressure drop Pa L throw at v L m L A10 sound pressure level with room attenuation of 4 db (10 m2 room absorption area) db(a) L W sound power level db K ok octave band correction db v L velocity at jet axis m/s NOZZLE DEVICE DK Device installed at the end of circular duct - DKBA The sound power levels for different octave bands are obtained by adding together the sound pressure level LA10, db(a), and the octave band correction K ok in the table with the help of the following formula L W = L A10 + K ok + K 2 Correction factor Kok when the angle of inclination of the nozzle α = 15 NOZZLE DEVICE DR Device installed at the end of circular duct - DRBA Size Correction Koct(dB), Octave bands, middle frequency, Hz Correction factor Kok when the angle of inclination of the nozzle α = 30 Size K Correction factor K of throw for DR nozzle Size K L 1 0,2 = L 0,2 x K

10 223 DRAWING AND DIMENSIONS NOZZLE DEVICE INSTALLED AT THE END OF CIRCULAR DUCT - DKBA Ø DN H 2 30 H 1 Ø D 4 Ø D 1 Ø D 3 Size (ØDN) Product Code Part Number ØD 1 ØD 3 ØD 4 H 1 H 2 04 DKBA SL DKBA SL DKBA SL DKBA SL DKBA SL DKBA SL NOZZLE DEVICE INSTALLED AT THE END OF CIRCULAR DUCT - DRBA Ø DN H 2 30 H 1 Ø D 4 Ø D 1 Ø D 3 Size (ØDN) Part Number Part Number ØD 2 ØD 3 ØD 1 H 1 H 2 04 DRBA SL DRBA SL DRBA SL DRBA SL DRBA SL DRBA SL All dimensions in mm.