BURE High Induction Diffuser Handbook
/24 | BURE Table of Contents Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Dimensions & Weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Ordering Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Quick Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
/24 | BURE Description BURE is the adjustable geometry diffuser for comfort high capacity ventilation of big halls and industrial buildings. Suitable for heating and cooling. Installation height is between 4 m and 12 m, therefore the product is suitable for large industrial and public halls.
/24 | BURE Product Parts Legend 1 Vertical discharge vents 2 Horizontal discharge vents 3 Manual adjustment dial (BURE-HC, -M2) 4 Electric actuator (BURE-M2, -MC) 5 Duct connection with gasket
/24 | BURE Setup Possibilities • BURE-HC Adjustment positions P1 ... P5 0% (P1) ... 100% (P5) opening for vertical air flow • BURE-M2 Adjustment positions P1 ... P5 Manual shift of electro actuating mechanism towards the horizontal flow direction (P1) or towards the vertical flow direction (P5). This shift can be max. 1/2 of the full movement range between fully vertical (100%) and fully horizontal (0%) flow position. The resting 1/2 of the movement range is covered by the actuator.
/24 | BURE Dimensions & Weights DN øD H H1 Mmax (BURE... -M2, -MC) mm BURE... -HC, -TC BURE...
/24 | BURE Ordering Codes Nominal size (DN supply connection) 250 315 400 500 630 Type of control HC Manual control TC Thermal continuous control M2 Electric actuator AC 230 V, 2-point/-3point control MC Electric actuator AC 24 V, DC 0 V ... 10 V continuous control Surface finish * RAL9003 Signal white RAL9003, gloss 30% RALXXXX Other RAL colours NOTE: * If no Surface finish is defined, signal white RAL9003 powder coating will be delivered.
/24 | BURE Quick Selection qV @ LWA 30 dB 35 dB 40 dB 45 dB BURE- 3 m /h l/s m /h l/s m /h l/s m3/h l/s 250 357 99 466 129 595 165 756 210 315 560 156 731 203 922 256 1144 318 400 1090 303 1315 365 1564 434 1846 513 500 1184 329 1442 401 1740 483 2086 579 630 1910 531 2337 649 2793 776 3321 923 3 3 NOTE: The working points were measured with fully open bottom vents for vertical discharge (100% curve in diagram).
/24 | BURE Technical Parameters BURE-250-HC-SW BURE-315-HC-SW Pressure drop & A-weighted sound power level in dB(A) Pressure drop & A-weighted sound power level in dB(A) 100 Pa 50 150 200 250 l/s 50 dB(A) 75 % 25 % 50 % 0% 40 100 200 300 400 0% 50 % 25 % 50 75 % 50 dB(A) 45 dB(A) 100 % 25 20 40 dB(A) 40 dB(A) 35 dB(A) 35 dB(A) 10 l/s 100 % 45 dB(A) 30 Pa 30 dB(A) 25 dB(A) 250 25 dB(A) 30 dB(A) 500 750 m³/h 400 600 800 1000 1200 BURE-400-HC-SW BURE-500-HC-SW Pressu
/24 | BURE BURE-630-HC-SW Pressure drop & A-weighted sound power level in dB(A) 400 Pa 50 600 800 1000 l/s 50 % 0% 25 % 50 dB(A) 75 % 100 % 40 30 45 dB(A) 20 40 dB(A) 35 dB(A) 10 25 dB(A) 30 dB(A) 1000 m³/h 2000 3000 4000
/24 | BURE BURE-250-M2-SW BURE-315-M2-SW Pressure drop & A-weighted sound power level in dB(A) Pressure drop & A-weighted sound power level in dB(A) 100 Pa 50 150 200 250 l/s 25 % 50 % 0% 50 dB(A) 40 30 Pa 100 200 300 400 l/s 50 % 0% 25 % 50 dB(A) 50 45 dB(A) 45 dB(A) 25 20 40 dB(A) 40 dB(A) 35 dB(A) 35 dB(A) 10 25 dB(A) 30 dB(A) 25 dB(A) 30 dB(A) 250 500 750 m³/h 400 600 800 1000 1200 BURE-400-M2-SW BURE-500-M2-SW Pressure drop & A-weighted sound power level in dB(A
/24 | BURE BURE-250-MC-SW BURE-315-MC-SW Pressure drop & A-weighted sound power level in dB(A) Pressure drop & A-weighted sound power level in dB(A) 100 Pa 50 150 200 250 l/s 50 dB(A) 75 % 25 % 50 % 0% 40 100 200 300 400 0% 50 % 25 % 50 75 % 50 dB(A) 45 dB(A) 100 % 25 20 40 dB(A) 40 dB(A) 35 dB(A) 35 dB(A) 10 l/s 100 % 45 dB(A) 30 Pa 30 dB(A) 25 dB(A) 250 25 dB(A) 30 dB(A) 500 750 m³/h 400 600 800 1000 1200 BURE-400-MC-SW BURE-500-MC-SW Pressure drop & A-weighted
/24 | BURE BURE-250-TC-SW BURE-315-TC-SW Pressure drop & A-weighted sound power level in dB(A) Pressure drop & A-weighted sound power level in dB(A) 100 Pa 50 150 200 250 50 dB(A) 0% l/s Pa 100 200 300 400 l/s 0% 50 50 % 50 % 40 50 dB(A) 100 % 45 dB(A) 30 100 % 45 dB(A) 25 20 40 dB(A) 40 dB(A) 35 dB(A) 35 dB(A) 10 30 dB(A) 25 dB(A) 250 25 dB(A) 30 dB(A) 500 750 m³/h 400 600 800 1000 1200 BURE-400-TC-SW BURE-500-TC-SW Pressure drop & A-weighted sound power level in dB
/24 | BURE BURE-630-TC-SW Pressure drop & A-weighted sound power level in dB(A) 400 Pa 50 600 800 1000 l/s 0% 50 dB(A) 40 50 % 100 % 30 45 dB(A) 20 40 dB(A) 35 dB(A) 10 25 dB(A) 30 dB(A) 1000 m³/h 2000 3000 4000 Notes: The adjustment positions on BURE-TC depend linearly and continuously on the supply air temperature. For temperatures lower or equal 18°C the position 0% is adjusted, for 25°C the position is 50% and for 32°C or higher temperature the position is 100%.
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/24 | BURE Transport, Storage and Operation
/24 | BURE Supplement Any deviations from the technical specifications contained herein and the terms should be discussed with the manufacturer. We reserve the right to make any changes to the product without prior notice, provided that these changes do not affect the quality of the product and the required parameters. Current information on all products is available on design.systemair.com.
Systemair DESIGN • 2021-11-05 • Handbook_BURE_en-GB • C3AC284B-CB5A-4D87-9E71-62B742C98799 • Original instructions
