Swirl diffusers, Variable swirl diffusers Swirl diffusers

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1 Swirl diffuser O-8 Square or round front plate with radial deflector arrangement Plastic deflectors Possible olume control damper in spigot Foam sealing on the flange St RA 900 C VENTIATING GRIES, VENTIATING VAVES CIRCUAR IFFUSERS, SQUARE IFFUSERS Front plate shapes and dimensions O-8 K 0/, 00/, 00/, / 00/, / SWIR IFFUSERS, VARIABE SWIR IFFUSERS 0/, 00/, SOT IFFUSERS, ROUN UCT IFFUSERS O-8 R φ 0/, 00/, 00/, / φ φ 00/, / φ AIR ISPACEMENT UNITS 0/, 00/, Fastening with four screws K M O-8 K φ SUPPY AIR NOZZES M B C O-8K x M in the center O-8K x M on the flange Size Ф B C A ef (m²) EXTERNA EEMENTS 0/ / / 00 9 / O-8 R AIR FOW CONTRO UNITS / / / / φ φ0. φ SOUN ATTENUATORS, SOUN ATTENUATING OUVRES A ef efectie discharge area (m²)

2 Swirl diffuser with thermostatic regulation O-8/TR The O-8/TR swirl diffuser regulation mechanism with thermostatic regulation automatically switches the diffuser on in the cooling mode at inlet air temperatures below 0 C and in the heating mode at temperatures aboe 0 C. Aailable in sizes 00/, /. Operation The swirl effect is used in the cooling mode, while all directional guides (rolls) hae to be in the same position. In the heating mode, the regulation system rotates eery second directional guide, so two guides are oriented facing each other, which directs the air flows against each other. The gradients of the flows combine and redirect the warm air ertically towards the floor. St RA 900 C Cooling with the swirl effect Formation of the jet in the heating mode Component parts and dimensions for O-8/TR Size Ф A ef (m²) 00/ / 0 00/, / 00/, / Note: O-8/TR are aailable in sizes 00/ and / only! φ O-8 00/, O-8 / heating V = 0.m/s.0. (m) = T 0K T = K T = 0K

3 Page Page 8, Page O-8/K (square front plate) Size C A h H Фd K / K 9 00/ K 9 00/ K 9 / K 0 K 9 00/ K 9 / K 0 K 9 K / K / K At sizes, and an adapter with 9 mm height is added to the plenum box. O-8/R (round front plate) Size Ф Ф A h H Фd R / R 0 00/ R 00 00/ R 00 / R R / R 00 0 / R Page, Page 8, R Page, R / R / R 8 A x A A x A 9 9. Plenum box. Inlet spigot. ispersing φ plate (only for supply). Volume control damper M. Traerse φ. iffuser O-8/K φ φ C x C C x C h A x A A x A 9 9 φ φ. Plenum box. Inlet spigot. ispersing plate (only for supply) φ. Volume control damper Mφ. Traerse. iffuser O-8/R. Adapter A x A A x A 9 9 φ φ h h A x A φ φ h h φ φ h A x A C x C φ φ A x A φ cd φ φ H A x A φ cd φ φ H AIR FOW CONTRO UNITS H H VENTIATING GRIES, VENTIATING VAVES CIRCUAR IFFUSERS, SQUARE IFFUSERS SWIR IFFUSERS, VARIABE SWIR IFFUSERS SOT IFFUSERS, ROUN UCT IFFUSERS AIR ISPACEMENT UNITS SUPPY AIR NOZZES EXTERNA EEMENTS A x A A x A 9 9 Page Page h h SOUN ATTENUATORS, SOUN ATTENUATING OUVRES φ φ

4 Round plenum box Size Ф Ф Фd H R /R /R /R /R 98 R /R /R 8 89 R Plenum box. Inlet spigot. Suspension bracket. ispersing plate (only for supply). Volume control damper (M). iffuser O-8 φ H R /R /R 8 φ Size Ф Ф Фd H R /R /R /R /R 98 R H 00/R /R 8 0 R R φ /R 90 8/R 8 9 φ 8

5 irection of deflectors and discharge Vertical discharge Air discharge - left Air discharge - right VENTIATING GRIES, VENTIATING VAVES Air jet direction CIRCUAR IFFUSERS, SQUARE IFFUSERS a) swirl effect b) one-way discharge c) two-way discharge SWIR IFFUSERS, VARIABE SWIR IFFUSERS Installation Vertical discharge Air discharge - left Air discharge - right Air discharge - left Air discharge - right E E H =. - m min. m SOUN ATTENUATORS, SOUN ATTENUATING OUVRES EXTERNA EEMENTS AIR FOW CONTRO UNITS SUPPY AIR NOZZES AIR ISPACEMENT UNITS SOT IFFUSERS, ROUN UCT IFFUSERS 9

6 efinition of symbols Q (m³/h) x (m) H (m) (m) (m) V Δt z (K) Δt (K) Air flow Horizontal distance to the wall Room height istance from ceiling to occupied zone Throw distance (=+x) Air elocity at the throw distance Temperate difference between the supply and room air ifference between the core and room air temperature Pressure drop Sound power leel Air elocity at the distance Δp t (Pa) WA (db(a)) V A, B (m) istance between diffusers by length and by width H Q t z A,B V t Q t z x.8m V t 0

7 Fast selection diagram O-8/V, Control angle - Pa VENTIATING GRIES, VENTIATING VAVES 0/, 00/ 00/, / 00/, / - Pa - db(a) - db(a) CIRCUAR IFFUSERS, SQUARE IFFUSERS SWIR IFFUSERS, VARIABE SWIR IFFUSERS O-8/S, Control angle 0-0 Pa SOT IFFUSERS, ROUN UCT IFFUSERS 0/, 00/ 00/, / 00/, / 0 - Pa 0 - db(a) - 0 db(a) AIR ISPACEMENT UNITS SUPPY AIR NOZZES SOUN ATTENUATORS, SOUN ATTENUATING OUVRES EXTERNA EEMENTS AIR FOW CONTRO UNITS

8 Air elocity at the throw distances and temperature quotient (with ceiling effect) = B>m B=.....m = A= temperature quotient t / t Z istan e (m ) = /,00/,00/,/ B>m /,00/,00/,/ B=.....m = /,00/,00/,/ A= temperature quotient t / t Z istan e (m ).. B>m =. B=.....m =. 00 A= temperature quotient t / t Z istan e (m ).. 00/,/ B>m = = /,/ B=.....m /,/ A= istan e (m ) temperature quotient t / t Z

9 Air elocity at the throw distance and temperature quotient (with ceiling effect) = = = B>m B>m B>m B=.....m = B=.....m = B=.....m = A= A= A=. distance (m) distance (m) distance (m) temperature quotient t / t Z temperature quotient t / t Z temperature quotient t / t Z VENTIATING GRIES, VENTIATING VAVES CIRCUAR IFFUSERS, SQUARE IFFUSERS SWIR IFFUSERS, VARIABE SWIR IFFUSERS SOUN ATTENUATORS, SOUN ATTENUATING OUVRES SOT IFFUSERS, ROUN UCT IFFUSERS AIR ISPACEMENT UNITS SUPPY AIR NOZZES EXTERNA EEMENTS AIR FOW CONTRO UNITS

10 Pressure drop and sound power leel diagrams (Control angle: opened, half opened) O-8/V control položaj position lopute O-8/V 0/,00/,00/,/ O-8/V WA (db(a)) WA (db(a)) WA (db(a)) O-8/S 0/,00/,00/,/ control položaj lopute position O-8/S O-8/V 0/,00/,00/,/ O-8/V O-8/S WA (db(a)) WA (db(a)) WA (db(a)) O-8/V 00/,/ O-8/V O-8/S O-8/V WA (db(a)) WA (db(a)) WA (db(a)) O-8/V O-8/S 00/,/ O-8/V O-8/S O-8/S WA (db(a)) WA (db(a)) WA (db(a)) O-8/S O-8/V O-8/S WA (db(a)) WA (db(a))