Swirl diffusers, Variable swirl diffusers

Transcription

1 0 Variable swirl diffusers

2 SLOT IFFUSERS, ROUN UCT IFFUSERS SWIRL IFFUSERS, VARIABLE SWIRL IFFUSERS CIRCULAR IFFUSERS, SQUARE IFFUSERS VENTILATING GRILLES, VENTILATING VALVES, Variable swirl diffusers are designed for air-conditioning of room with floor to ceiling heights from, to m and temperature difference between supply and room air of +K to -K. ue to the rotary swirling motion of the air discharge, induction of room air occurs very quickly. Variable diffusers are designed for rooms with changing thermal loads which require different conditioning (heating, cooling). They are suitable for rooms with floor to ceiling height of up to m and recommended temperature difference between supply and room air +K and -K. Required conditioning is achieved by the means of manual or power driven blades adjusting. Swirl and variable swirl diffusers are suitable both for comfort as well as industrial air- conditioning. AIR ISPLACEMENT UNITS SUPPLY AIR NOZZLES EXTERNAL ELEMENTS AIR FLOW CONTROL UNITS SOUN ATTENUATORS, SOUN ATTENUATING LOUVRES

3 Overview Variable swirl diffusers Application are designed for air-conditioning of room with floor to ceiling heights from, to m and temperature difference between supply and room air of +K to -K. ue to the rotary swirling motion of the air discharge, induction of room air occurs very quickly. are suitable both for comfort as well as industrial air- conditioning. escription consist of plenum box made of galvanised sheet steel and diffuser face. iffuser face is made of sheet steel powder painted in RAL 90 or any RAL colour upon customer s request. O-8/TR According to the temperature profile, O-8/TR automatically adjusts the inlet air flow. The swirl effect is used in the cooling mode, while the vertical air flow is in effect during heating. uring transition periods, the diffuser automatically adjusts the optimum discharge angle which contributes to increased comfort level in the room. Application Variable diffusers are designed for rooms with changing thermal loads which require different conditioning (heating, cooling). They are suitable for rooms with floor to ceiling height of up to m. and recommended temperature difference between supply and room air +K and -K. Required conditioning is achieved by the means of manual or power driven blades adjusting. Variable diffusers are suitable for both comfort and industrial conditioning. escription Variable diffusers consist of plenum box made of galvanised sheet steel and diffuser. iffusers are made of sheet steel or sheet aluminium (O-) and powder painted in RAL 90 or any RAL colour upon customer s request. O-V/TR At O-V/TR diffuser, centrally adjustable blades can be adjusted automatically with the thermostat regulation. Thermostat perceives temperature of the supply air and automatically adjusts the blades angle. O- O- O-7 O-8 O-9 O- Variable swirl diffusers O-, O-V O- O-7 K-8

4 Content Swirl diffuser O- Swirl diffuser O- 9 Swirl diffuser O-7 8 Swirl diffuser O-8 Swirl diffuser O-9 Swirl diffuser O- Variable swirl diffusers Variable swirl diffuser O- Variable swirl diffuser O- Variable swirl diffuser O-7 Variable diffuser K-8 9 Motor actuators 7 Page VENTILATING GRILLES, VENTILATING VALVES SUPPLY AIR NOZZLES AIR ISPLACEMENT UNITS CIRCULAR IFFUSERS, SQUARE IFFUSERS SWIRL IFFUSERS, VARIABLE SWIRL IFFUSERS SLOT IFFUSERS, ROUN UCT IFFUSERS Legend of symbols AI Element is made of aluminium profiles, aluminium sheet or aluminium casting. Element is intended to be built in the wall. Element is suitable for the supply of cool air (cooling). EXTERNAL ELEMENTS St RAL 90 Element is made of steel sheet. Element is powder painted in standard RAL 90 colour. Other desired colour is to be specified in the order. Element is intended to be built in the ceiling or in the wall. Element for air conditioning of rooms with floor to ceiling heights room up to m. M Element allows regulation by electric motor (Belimo, Joventa electric motors). F Element is intended for air filtration. EU... The filter of class is built in. AIR FLOW CONTROL UNITS Shady symbol means possibility of optional material, surface protection, motor version, Element is intended to be built in the floor. Element for air conditioning of rooms with floor to ceiling heights from to m. Element is suitable for the supply of warm air (heating). C The possibility of the automatic selection and calculation of the technical characteristics of grilles and difusers in regard to the given conditions with the assistance of the Klima AE program. SOUN ATTENUATORS, SOUN ATTENUATING LOUVRES

5 Swirl diffuser O- Fixed slots Possible volume control damper in spigot iffusing ring is an additional element, preventing the discharged air to flow over the diffuser face itself. St RAL 90 C iffuser face fastening iffuser plate can be fastened with central screw O-/K or with four peripheral screws O-/K. iffuser plate O-/R is to be fastened with one central screw. O-/K O-/R M n z n z M M C x C φ Size n z C Ф A ef (m²) A ef efective discharge area (m²)

6 , Variable swirl diffusers O-/K (square front plate) Size C A H h H Фd Plenum box. Inlet spigot. ispersing plate (only for supply). Volume control damper M. Traverse. iffuser O-/K O-/R (round front plate) Size Ф A Ф H h H Фd Page 00 Page Plenum box. Inlet spigot. ispersing plate (only for supply). Volume control damper M. Traverse. iffuser O-/R 7. Adapter for circural front plate Construction and dimensions: C x C C x C Construction and dimensions: A x A A x A 9 9 φ φ φ φ h H h H C x C A x A φ φ A x A φ φ H H VENTILATING GRILLES, VENTILATING VALVES CIRCULAR IFFUSERS, SQUARE IFFUSERS SWIRL IFFUSERS, VARIABLE SWIRL IFFUSERS SLOT IFFUSERS, ROUN UCT IFFUSERS AIR ISPLACEMENT UNITS Round plenum box Size Ф Ф H H Фd Page 8, Page 8, Size Ф Ф H Фd C x C φ φ A x A A x A 9 9 φ φ A x A A x A φ φ h H C x C A x A φ cd H SOUN ATTENUATORS, SOUN ATTENUATING LOUVRES H h H A x A φ cd H H. Plenum box. Inlet spigot. Suspension bracket. Volume control damper M. ispersing plate (only for supply). iffuser Page, O- Page, H H φ φ H SUPPLY AIR NOZZLES EXTERNAL ELEMENTS AIR FLOW CONTROL UNITS h h

7 Installation a) into the ceiling b) with extended tube under the ceiling E a) b) E > H =. - m min. m Ordering key O / K / Z / S / M / I Size 0, 0, 00,, 00,, 7 I Thermal insulation (PE), thickness mm on the outside of the plenum box I9 Sound and thermal insulation (from - C to C) thickness 9 mm on the outside of the plenum box (the material is synthetic rubber-based) I9 Sound and thermal insulation (from - C to C) thickness 9 mm on the outside of the plenum box (the material is synthetic rubber-based) M Volume control damper in the entry spigot OK Measuring damper (only in combination with- AR/S-air exhaust round plenum box side entry spigot and A/S-air exhaust square plenum box side entry spigot) S Side entry spigot V Top entry spigot Z Air supply (square plenum box) ZR Air supply (round plenum box) A Air exhaust (square plenum box) AR Air exhaust (round plenum box K Square diffuser plate central fastening K Square diffuser plate fastening with four screws* R Circular diffuser plate central fastening * K version is available only when ordering the diffuser plate without the plenum box. When installing to the plenum box, diffuser plate is always central fastened K, R.

8 efinition of symbols Q (m³/h) Air flow x (m) Horizontal distance to the wall H (m) Room height H (m) istance from ceiling to occupied zone L (m) Throw distance (L = H + x) V L (m/s) Air velocity at the throw distance L Δt z (K) Temperate difference between the supply and room air Δt L (K) ifference between the core and room air temperature Δp t (Pa) Pressure drop L WA (db(a)) Sound power level V H (m/s) Air velocity at the H distance A, B (m) istance between diffusers by length and by width Air velocity at the throw distances (for O- without diffusion ring and with ceiling effect) H L Q t z A,B V H t L Q tz x H L.8m V L t L VENTILATING GRILLES, VENTILATING VALVES CIRCULAR IFFUSERS, SQUARE IFFUSERS SWIRL IFFUSERS, VARIABLE SWIRL IFFUSERS H= O- size 0,0,00, B=..... m.0... m 0 0 H= O- size 00,,7 B=..... m.0... m 800 m /h SLOT IFFUSERS, ROUN UCT IFFUSERS v H (m/s) m /h v H (m/s) AIR ISPLACEMENT UNITS SUPPLY AIR NOZZLES istance A (m) istance A (m) H= O- size 0,0,00, B>m.0... m 00 0 O- size 00,,7 B>m H= m m /h EXTERNAL ELEMENTS v H (m/s) istance A (m) m /h v H (m/s) istance A (m) AIR FLOW CONTROL UNITS SOUN ATTENUATORS, SOUN ATTENUATING LOUVRES 7

9 O- size 0,0,00, A=.. O- size 00,, 7 A=.. v (m/s) L t L t Z 0 m /h t L / t Z v (m/s) L t L t Z m /h t L / t Z L (m). L (m) Pressure drop and sound power level Control flap angle: 90 opened, half opened O-/S size 0,0,00, control flap angle O-/S size 00,,7 control flap angle L WA (db(a)) ΔPt (Pa) L WA (db(a)) ΔPt (Pa) O-/V size 0,0,00, control flap angle O-/V size 00,,7 control flap angle 0 0 L WA (db(a)) ΔPt (Pa) L WA (db(a)) ΔPt (Pa)

10 Swirl diffuser O- Fixed grille For air supply or exhaust Recommended temperature difference between supplied and internal air in the room is between to 0 K Low static pressure drop and low noise level Recommended installation height up to.m iffuser plate should be lined with the ceiling in order to establish the ceiling effect Square and circular diffuser plate iffuser plate attachment For square diffusers, central fastening O-/K or fastening with four screws on the edges O-/K can be selected. For circular diffusers, only the central fastening is provided. iffusers are usually installed with the plenum box with side or top entry spigot. Plenum boxes with side or top inlet can be selected. If additional air flow regulation is required, the plenum box with the M volume control damper is recommended. St RAL 90 VENTILATING GRILLES, VENTILATING VALVES CIRCULAR IFFUSERS, SQUARE IFFUSERS SWIRL IFFUSERS, VARIABLE SWIRL IFFUSERS SLOT IFFUSERS, ROUN UCT IFFUSERS O-/K O-/R n z AIR ISPLACEMENT UNITS n z SUPPLY AIR NOZZLES A x A φ A EXTERNAL ELEMENTS Size n z AxA ФA A ef (m²) x9 00 0, x9 0 0,00 0 9x9 0 0, x9 00 0, x 0,080 AIR FLOW CONTROL UNITS SOUN ATTENUATORS, SOUN ATTENUATING LOUVRES 9

11 O-/K (square front plate) imensions and components. Plenum box. Inlet spigot. ispersing plate (only for supply). Volume control damper (M). Traverse. Swirl diffuser O-/K Size A H h H Фd Ф A Adapter VIII XXI A x A A x A A x A H O-/R (round front plate) imensions and components. Plenum box. Inlet spigot. ispersing plate (only for supply). Volume control damper (M). Traverse. Swirl diffuser O-/R 7. Adapter Size A H h H Фd Ф A Adapter VIII XI XXI 7 A 9 7 A H XVII XVII Round plenum box. Plenum box. Inlet spigot. Suspension bracket. Volume control damper (M). ispersing plate (only for supply). Swirl diffuser O- imensions and components H H H Size Ф Ф H H Фd φ φ φ φ Size Ф Ф H Фd

12 Ordering key O / K / A / S / M / I Size 00, 0, 0, 00, VENTILATING GRILLES, VENTILATING VALVES Fast selection diagram I Thermal insulation (PE), thickness mm on the outside of the plenum box I9 Sound and thermal insulation (from - C to C) thickness 9 mm on the outside of the plenum box (the material is synthetic rubber-based) I9 Sound and thermal insulation (from - C to C) thickness 9 mm on the outside of the plenum box (the material is synthetic rubber-based) M Volume control damper in the entry spigot OK Measuring damper (only in combination with- AR/S-air exhaust round plenum box side entry spigot and A/S-air exhaust square plenum box side entry spigot)** S Side entry spigot V Top entry spigot Z Air supply (square plenum box) ZR Air supply (round plenum box) A Air exhaust (square plenum box) AR Air exhaust (round plenum box) K Square diffuser plate central fastening K Square diffuser plate fastening with four screws* R Circular diffuser plate central fastening * K version is available only when ordering diffuser plate without the plenum box. When installing to the plenum box, diffuser plate is always central fastened K, R. ** OK is always without perforation. CIRCULAR IFFUSERS, SQUARE IFFUSERS SWIRL IFFUSERS, VARIABLE SWIRL IFFUSERS SLOT IFFUSERS, ROUN UCT IFFUSERS AIR ISPLACEMENT UNITS 00 0 O- - db(a) - db(a) SUPPLY AIR NOZZLES 0 00/ Pa - Pa EXTERNAL ELEMENTS SOUN ATTENUATORS, SOUN ATTENUATING LOUVRES AIR FLOW CONTROL UNITS

13 efinition of symbols Q (m³/h) Air volume per diffuser x (m) Horizontal distance to wall H (m) Room height H (m) Ceiling to living zone distance L (m) Throw distance (L = H+ x) V L (m/s) Air speed on the throw distance L Δt z (K) ifference between room temperature and supply air temperature Δt L (K) ifference between room temperature and air flow temperature on distance L Δp t (Pa) Pressure drop L WA (db(a)) Sound power level V H (m/s) Air speed on distance H A, B (m) istance between two diffusers (length and width) H L Q t z A,B V H t L Q tz x H L.8m V L t L Quick selection table: ΔT = -K Size Q (m³/h) Q(l/s) H=m: v H (m/s) 0, 0, 0,9 0, / H=,m: v H (m/s) / 0, 0, 0, / L=m: v L (m/s) 0, 0,9 0, 0,8 0.8 L=,m: v L (m/s) 0, 0, 0, 0, 0. Δp (Pa),,0 9,7,8 9, L WA (db(a)),,,9,8,7 H=m: v H (m/s) / 0,7 0, 0.7 / H=,m: v H (m/s) / 0, 0, 0, 0, L=m: v L (m/s) 0. 0,8 0, 0,8 / L=,m: v L (m/s) 0, 0, 0,8 0, 0, Δp (Pa) 7,,9 7, 9,, L WA(dB(A)) 9,, 8,9,,0 H=m: v H (m/s) / / 0, 0,9 0,8 0,8 H=,m: v H (m/s) / / / 0, 0,9 0, L=m: v L (m/s) 0, 0. 0,7 0, 0,9 0, L=,m: v L (m/s) / 0, 0, 0, 0, 0,9 Δp (Pa) / /,8,7,, L WA(dB(A)), 9,,, 9,7,8 H=m: v H (m/s) / / 0, 0,0 0,8 0, 0. H=,m: v H (m/s) / / / 0, 0. 0, 0.7 L=m: v L (m/s) 0, 0,7 0, 0,0 0, 0, 0, L=,m: v L (m/s) 0, 0, 0,9 0, 0.9 0, 0,9 Δp (Pa) / /, 8,0,,0,7 L WA(dB(A)), 9,,0, 7,7,7, H=m: v H 0. 0,0 0,8 0, / / H=,m: v H / 0, 0,9 0, 0,7 0. L=m: v L (m/s) 0. 0,8 0, 0, 0, 0, L=,m: v L (m/s) 0,9 0, 0,9 0, 0,9 0, Δp (Pa), 8,0,,0,7, L WA(dB(A)),0, 7,7,7, 8,

14 Quick selection table: ΔT = -K Size Q (m³/h) Q(l/s) H=m: v H (m/s) 0, 0, 0,0 0, / H=,m: v H (m/s) / 0, 0, 0. / L=m: v L (m/s) 0, 0,9 0, 0,9 0,8 L=,m: v L (m/s) 0, 0, 0, 0. 0, Δp (Pa),,9,7, 98,0 L WA (db(a)),,8,,8,8 H=m: v H (m/s) / 0,9 0, 0,9 0,0 / H=,m: v H (m/s) / 0, 0,7 0, 0, / L=m: v L (m/s) 0, 0,8 0, 0,9 0, 0, L=,m: v L (m/s) 0, 0, 0,9 0, 0,0 0,7 Δp (Pa) 7,, 7, 9,9,7,8 L WA(dB(A)) 9,, 8,9,8,7 9,0 H=m: v H (m/s) 0, 0,0 0,9 0,9 / H=,m: v H (m/s) 0, 0, 0, 0, / L=m: v L (m/s) 0,8 0, 0,9 0, 0, L=,m: v L (m/s) 0, 0, 0, 0,0 0, Δp (Pa),7,7,, 0, L WA(dB(A)),, 9,,8 9, H=m: v H (m/s) / 0, 0, 0,9 0,7 0, 0, H=,m: v H (m/s) / 0, 0, 0, 0, 0,8 0, L=m: v L (m/s) 0,8 0, 0,9 0, 0, 0, 0, L=,m: v L (m/s) 0, 0, 0, 0,0 0, 0, 0, Δp (Pa) /, 7,,,0,,0 L WA(dB(A)) 9,,0, 7,7,7,0 8, H=m: v H 0, 0, 0,9 0,7 0, 0, H=,m: v H 0, 0, 0, 0, 0,8 0, L=m: v L (m/s) 0, 0,9 0, 0, 0,7 0, L=,m: v L (m/s) 0, 0, 0,0 0, 0, 0, Δp (Pa),7 7,,,0,7,0 L WA(dB(A)),, 7,7,7, 8, Quick selection table: ΔT = 0K VENTILATING GRILLES, VENTILATING VALVES CIRCULAR IFFUSERS, SQUARE IFFUSERS SWIRL IFFUSERS, VARIABLE SWIRL IFFUSERS SLOT IFFUSERS, ROUN UCT IFFUSERS AIR ISPLACEMENT UNITS Size Q (m³/h) Q(l/s) H=m: v H (m/s) 0, 0, 0,0 0, / H=,m: v H (m/s) / 0, 0, 0. / L=m: v L (m/s) 0, 0,9 0, 0,9 0,8 L=,m: v L (m/s) 0, 0, 0, 0. 0, Δp (Pa),,9,7, 9, L WA (db(a)),,8,,8,7 H=m: v H (m/s) / 0,9 0, 0,8 0, / H=,m: v H (m/s) / 0, 0,8 0, 0, / L=m: v L (m/s) 0, 0,8 0, 0,9 0, 0, L=,m: v L (m/s) 0, 0, 0,9 0, 0, 0,7 Δp (Pa) 7,,9 7, 9,,,8 L WA(dB(A)) 9,, 8,9,,0 9,0 H=m: v H (m/s) 0, 0,0 0,9 0,9 / H=,m: v H (m/s) 0, 0, 0, 0, / L=m: v L (m/s) 0,8 0, 0,9 0, 0, L=,m: v L (m/s) 0, 0, 0, 0,0 0, Δp (Pa),8,7,,0 0, L WA(dB(A)),, 9,7,8 9, H=m: v H (m/s) / 0, 0, 0, 0,7 0, 0, H=,m: v H (m/s) / 0, 0,7 0, 0, 0,9 0, L=m: v L (m/s) 0,9 0, 0,9 0, 0, 0,7 0, L=,m: v L (m/s) 0, 0, 0, 0, 0, 0, 0, Δp (Pa) /, 7,,,0,7, L WA(dB(A)) 9,,0, 7,7,7, 8, H=m: v H 0, 0, 0,9 0,8 0, 0, H=,m: v H 0, 0, 0, 0, 0,9 0, L=m: v L (m/s) 0, 0,9 0, 0, 0,7 0, L=,m: v L (m/s) 0, 0, 0, 0, 0, 0, Δp (Pa), 7,,,0,7, L WA(dB(A)),0, 7,7,7, 8, SUPPLY AIR NOZZLES EXTERNAL ELEMENTS AIR FLOW CONTROL UNITS SOUN ATTENUATORS, SOUN ATTENUATING LOUVRES

15 Example A = m B = m H = m Q = 80 m³/h H = H,8 H =, m V H = 0, m/s Δp = Pa L WA = db(a) 0- size 00 B = m v H (m/s) H (m) 0, m/s 0,0 m/s 0, m/s 0, m/s 0, m/s 0, m/s 0, 0,9,,,0 m /h m /h m /h 80 m /h m /h,, istance A (m) B m v H (m/s) H (m) 0, m/s 0,0 m/s 0, m/s 0,m/s 0, m/s 0, m/s 0, 0,9,,,0 m /h m /h m /h 80 m /h m /h,, istance A (m) Static pressure drop and sound power level 80 0 Δp (Pa) 0 0 L WA (db(a))

16 0- size 0 B = m VENTILATING GRILLES, VENTILATING VALVES v H (m/s) 0, m/s 0,0 m/s 0, m/s 0, m/s 0, m/s 0,m/s 0, 0,9,,,0 m /h m /h 0 m /h 90 m /h m /h,, CIRCULAR IFFUSERS, SQUARE IFFUSERS SWIRL IFFUSERS, VARIABLE SWIRL IFFUSERS B m H (m) istance A (m) SLOT IFFUSERS, ROUN UCT IFFUSERS m /h v H (m/s) 0,m/s 0,0 m/s 0, m/s 0, m/s 0, m/s 0,m/s 0, 0,9,,,0 H (m) m /h 0 m /h 90 m /h m /h,, istance A (m) AIR ISPLACEMENT UNITS SUPPLY AIR NOZZLES Static pressure drop and sound power level Δp (Pa) L WA (db(a)) EXTERNAL ELEMENTS AIR FLOW CONTROL UNITS SOUN ATTENUATORS, SOUN ATTENUATING LOUVRES

17 0- size 0 B = m m /h m /h v H (m/s) 0, m/s 0,0 m/s 0, m/s 0, m/s 0, m/s 0, m/s 0, 0,9,,,0 H (m) m /h m /h m /h,, istance A (m) B m v H (m/s) 0, m/s 0,0 m/s 0, m/s 0, m/s 0, m/s 0, m/s 0, 0,9,,,0 H (m) m /h m /h m /h m /h m /h,, istance A (m) Static pressure drop and sound power level 80 Δp (Pa) L WA (db(a))

18 0- size 00 and B = m 900 m /h VENTILATING GRILLES, VENTILATING VALVES v H (m/s) 0, m/s 0,0 m/s 0, m/s 0, m/s 0, m/s 0, m/s 0, 0,9,,,0 7 m /h m /h m /h 0 m /h,, CIRCULAR IFFUSERS, SQUARE IFFUSERS SWIRL IFFUSERS, VARIABLE SWIRL IFFUSERS B m H (m) istance A (m) SLOT IFFUSERS, ROUN UCT IFFUSERS 900 m /h v H (m/s) 0, m/s 0,0 m/s 0, m/s 0, m/s 7 m /h m /h m /h 0 m /h AIR ISPLACEMENT UNITS 0, m/s 0, m/s 0, 0,9,,,0 H (m),, istance A (m) SUPPLY AIR NOZZLES Static pressure drop and sound power level Δp (Pa) L WA (db(a)) EXTERNAL ELEMENTS AIR FLOW CONTROL UNITS SOUN ATTENUATORS, SOUN ATTENUATING LOUVRES 7

19 Swirl diffuser O-7 Fixed blades ifferent installation possibilities Three possible diffuser shapes St RAL 90 C O-7/RB O-7/KB O-7/RC O-7/KB/PM F 9 x9 φ φ φ φ C H C H F x F C H φ 8 φ 9 x 9 Size Ф Ф Ф F H C A ef (m²) A ef efective discharge area (m²) Type O-7/KB with plate (F = 9) is suitable for ceiling rasters of 00 mm. (all sizes available) Installation radnja s priključno komoro. Suspension gradnja z obešali brackets (0) (O) 8 dnja Installation s pomočjo with reducirja. spigot (Spigot and diffuser are connected) Installation with spigot (Spigot and diffuser are connected)

20 L, Variable swirl diffusers Possible installations Installation on cross-bar with central screw (S) Installation on spigot with central screw (AS) Fixing with spring clamps (F) Spigot dimensions Installation on cross-bar with central screw (S). Installation on spigot with central screw (AS). Fixing with spring clamps (F). VENTILATING GRILLES, VENTILATING VALVES CIRCULAR IFFUSERS, SQUARE IFFUSERS Size Ф Ф0 L H φ 0 SWIRL IFFUSERS, VARIABLE SWIRL IFFUSERS φ H SLOT IFFUSERS, ROUN UCT IFFUSERS Plenum box dimensions Size A H h Фd Ф Ф Plenum box. Inlet spigot. ispersing plate (only for supply). Volume control damper M. Traverse. iffuser O-7 7. Adapter 7 A x A 9 φ φ h H AIR ISPLACEMENT UNITS SUPPLY AIR NOZZLES Round plenum box Size Ф Ф Ф H h Фd Plenum box. Inlet spigot. ispersing plate (only for supply). Volume control damper (M). Suspension bracket. iffuser O-7 H H φ EXTERNAL ELEMENTS AIR FLOW CONTROL UNITS φ φ SOUN ATTENUATORS, SOUN ATTENUATING LOUVRES 9

21 Ordering key O 7 / RB / A / O Size,, 0, 80, 0,,,, 0 O Three hangers on the diffuser A Spigot S Central fastening (delivered without cross-bar) AS Central fastening on spigot ST Central fastening with cross bar F Spring fastening RB Circular diffuser (funnel) KB Square diffuser (funnel) RC Circular diffuser (without funnel) KB/PM Square diffuser with perforated diffuser face Ordering key for O-7 with plenum box O 7 RB / Z / S / M / I Size,, 0, 80, 0,,,, 0 I Thermal insulation (PE), thickness mm on the outside of the plenum box I9 Sound and thermal insulation (from - C to C) thickness 9 mm on the outside of the plenum box (the material is synthetic rubber-based) I9 Sound and thermal insulation (from - C to C) thickness 9 mm on the outside of the plenum box (the material is synthetic rubber-based) M Volume control damper in the entry spigot OK Measuring damper (only in combination with- AR/S-air exhaust round plenum box side entry spigot and A/S air exhaust square plenum box side entry spigot) S Side entry spigot Z Air supply (square plenum box) ZR Air supply (round plenum box) A Air exhaust (square plenum box) AR Air exhaust (round plenum box) RB Circular diffuser (funnel) KB Square diffuser (funnel) RC Circular diffuser (without funnel) KB/PM Square diffuser with perforated diffuser face KB/size/00 O-7/KB/size/00 in the plate 9/9 is suitable for suspended ceiling with raster 00 mm. Ordering key: O-7/KB size /9, /9, 0/9, 80/9, 0/9, /9, /9. Fast selection diagram O-7/RB, O-7/KB Pa - Pa - db(a) - db(a)

22 efinition of symbols Q (m³/h) Air flow x (m) Horizontal distance to the wall H (m) Room height H (m) istance from ceiling to occupied zone L (m) Throw distance (L=H+x) V L (m/s) Air velocity at the throw distance L Δt z (K) Temperate difference between the supply and room air Δt L (K) ifference between the core and room air temperature Δp t (Pa) Pressure drop L WA (db(a)) Sound power level V H (m/s) Air velocity at the H distance A, B (m) istance between diffusers by length and by width H L Q t z A,B V H t L Q tz x H L.8m V L t L VENTILATING GRILLES, VENTILATING VALVES CIRCULAR IFFUSERS, SQUARE IFFUSERS SWIRL IFFUSERS, VARIABLE SWIRL IFFUSERS Air velocity of the throw distances (with ceiling effect) vh (m/s) Size H= 0,9,,,0 m 0, 0, 0,0 0, 0, 0, 0m /h B,00m 00 0 vh (m/s) H= 0,9 0,0 0, 0,0 0, 0, 0,,,,0 m 0 m /h B =,- m 00 0 vl (m/s) A = 0,,0,0,0m 0,70 0,0 0, 0, 0,0 0, 0, 0, 0 m /h ΔtL/ΔtZ , 0, 0,07 0,0 0,0 0,0 0,0 Δt L/ΔtZ SLOT IFFUSERS, ROUN UCT IFFUSERS AIR ISPLACEMENT UNITS vh (m/s) Size 0,7,0 Size H = 0,9,,,0 m 0,0 0, 0,0 0, 0, 0, 7 m /h,,0,0,0,0 m A B,00m 00 vh (m/s) H = 0,9 0,0 0, 0,0 0, 0, 0, 0,7,0,,,0 m 7 m /h,,0,0,0,0 m A 0 B=,-m vl (m/s) A= 0,,0,0,0m 0,0 0, 0,0 0, 0, 0, 0,0 0,7,0,,0,0,0 7,0,0 m L m /h 0 7 Δt L/Δt Z L 0, 0, 0,07 0,0 0,0 0,0 0,0 Δt L/ΔtZ SUPPLY AIR NOZZLES EXTERNAL ELEMENTS Size 80 0,7,0,,0,0,0,0 m A 0,7,0,,0,0,0,0 m A 0,0 0,7,0,,0,0,0 7,0,0 m L SOUN ATTENUATORS, SOUN ATTENUATING LOUVRES AIR FLOW CONTROL UNITS

23 Size 0 B,00m B=,-m H = 0,9,,,0 m H = 0,9,,,0 m A = 0,,0,0,0 m 0, 0, 0, V = 0 m /h 0, 0, V = 0 m /h 0, 0,08 0,0 vh (m/s) 0, 0, 0, 0,08 0,0 7 0, 0, 0, vh (m/s) 0,08 0,0 7 vl (m/s) 0, 0, 0, 0, ΔtL/ΔtZ V = 0 m /h 7 0 0,0 0,0 0,0 ΔtL/ΔtZ 0,0 0,0 0,7, 0,7, 0,7, 7 0,0 A L A 0,0 Air velocity of the throw distances (with ceiling effect) vh (m/s) Size 80 H= 0,9,,,0 m 0,0 0, 0,0 0, 0, 0, m /h B,00m vh (m/s) H= 0,9,,,0 m 0, 0,0 0, 0, 0, 0 00 m /h B=,-m 0 0 vl (m/s) A = 0,,0,0,0m 0,70 0, 0, 0,0 0, 0, 0, Δt L /Δt Z 0 m /h , 0, 0,07 0,0 0,0 0,0 0,0 ΔtL/ΔtZ vh (m/s) 0,7,0 H= 0,9,,,0 m 0, 0, 0,0 0, 0, 0, Size ,,0,0,0,0 m A B,00m vh (m/s) 0,7,0 H= 0,9,,,0 m 0, 0, 0,0 0, 0, 0,,,0,0,0,0 m A m /h B =,- m vl (m/s) A = 0,,0,0,0m 0, 0, 0,0 0, 0, 0, 0,0 0,7,0,,0,0,0,0 7,0,0 m L Δt L /Δt Z m /h 0, 0, 0,07 0,0 0,0 0,0 0,0 Δt L /Δt Z m /h Size Size 0,7,0 H = 0,9,,,0 m,,0,0,0,0 m A B,00m H = 0,9 0,7,0,,,0 m,,0,0,0,0 m A B =,- m A = 0,,0,0,0m 0,7,0,,0,0,0 7,0 L ,0,0 m vh (m/s) 0, 0,0 0, 0, 0, m /h vh (m/s) 0, 0,0 0, 0, 0, m /h vl (m/s) 0, 0,0 0, 0, 0, Δt L /Δt Z 0 m /h 0, 0, 0,07 0,0 0,0 0,0 0,0 Δt L /Δt Z Size 0,7,0,,0,0,0,0 m A 0,7,0,,0,0,0,0 m A 0,0 0,7,0,,0,0,0 7,0,0 m L

24 vh (m/s) H = 0,9,,,0 m 0,0 0, 0,0 0, 0, 0, Size m /h B,00m vh (m/s) H = 0,9,,,0 m 0,0 0, 0,0 0, 0, 0, m /h B =,- m vl (m/s) A = 0,,0,0,0m 0, 0,0 0, 0, 0, Δt L /Δt Z m /h 0, 0, 0,07 0,0 0,0 0,0 0,0 Δt L /Δt Z VENTILATING GRILLES, VENTILATING VALVES CIRCULAR IFFUSERS, SQUARE IFFUSERS vh (m/s) vh (m/s) H = 0,9,,,0 m 0, 0,0 0, 0, 0, B,00m B =,- m H = 0,9,,,0 m H= 0,9,,,0 m A =0,,0,0,0m 0, 0,0 0, 0, 0, 0, Size Size 0 0,7, m /h 0,7,0 V= m /h 0 0,,0,0,0,0 m A,,0,0,0,0 m A 0,7, A B,00m 0 vh (m/s) vh (m/s) H= 0,9 0, 0, 0,0 0, 0, 0, 0, 0, 0,0 0, 0, 0, 0,7,0,,,0 m m /h 0,7,0 V= m /h 0,7, A Pressure drop and sound power level The diagram values apply to O-7 with plenum box, at % open regulation blade. Line A is for O-7/RC, Line B is for O-7/RB and O-7/KB 0 0,,0,0,0,0 m A B =,- m 0 800,,0,0,0,0 m A vl (m/s) vl (m/s) A = 0,,0,0,0m 0, 0,0 0, 0, 0, 0, 0,70 0,0 0, 0, 0,0 0, 0, 0, 0,0 0,7,0,,0,0,0 7,0,0 m L 800 m /h Δt L /Δt Z 0,0 0,7,0,,0,0,0 7,0,0 m L V= m /h Δt L /Δt Z 0, 0, 0,07 0,0 0,0 0,0 0,0 0, 0,08 0,0 0,0 0,0 0,0 0,0 0,7, 7 L Δt L /Δt Z Δt L /Δt Z SWIRL IFFUSERS, VARIABLE SWIRL IFFUSERS SLOT IFFUSERS, ROUN UCT IFFUSERS AIR ISPLACEMENT UNITS SUPPLY AIR NOZZLES EXTERNAL ELEMENTS O-7 O-7 80 Δp t (Pa) 0 0 L WA (db(a)) Q (m /h) 0 B O-7 A B Δp t (Pa) Q (m /h) L WA (db(a)) O Δp t (Pa) Q (m /h) A L WA (db(a)) B AIR FLOW CONTROL UNITS SOUN ATTENUATORS, SOUN ATTENUATING LOUVRES

25 O-7 80 O O-7 B A B Δp t (Pa) 9 8 L WA (db(a)) Q (m /h) Δp t (Pa) L WA (db(a)) Q (m /h) Δp t (Pa) 8 O-7 0 L WA (db(a)) Q (m /h) A B O-7 Δp t (Pa) L WA (db(a)) Q (m /h) A B O-7 Δp t (Pa) L WA (db(a)) Q (m /h) B Δp t (Pa) O B 0 L WA (db(a)) Q (m /h) Correction factor for PM version Δpt (Pa) X. Lwa (db(a)) X.

26 Swirl diffuser O-8 Square or round front plate with radial deflector arrangement Plastic deflectors Possible volume control damper in spigot Foam sealing on the flange 0/, 0/, 0/, 00/, 0/, / O-8 K O-8 00/, R/ 00/8 00/8 O-8 K O-8 R 00/8 St 00/8 RAL 90 0/, 0/, 00/, / 0/, 0/, 00/, / C φ φ 0/ 0/ 0/ 0/, 0/, 0/ 00/, / 0/, 0/, 00/, / φ φ 0/, 0/, 0/, 00/, 0/, / 00/, / φ M 0/, / Front plate shapes and dimensions O-8 K 00/8 O-8 K O-8 R 00/8 00/8 O-8 K O-8 R 00/8 00/8 0/, 0/, 00/, / 0/, 0/, 0/, 0/, 00/, / 00/, / C φ 800/7, 8/7 C φ φ Size Ф B C A ef (m²) 00/ φ / / 800/7, 8/7 O-8 K 0/ 0 9φ O-8 R 0/ /8 / 00/8 O / K 800/7, O-8 8/7 R 00/ 00 9 / 00/, / 00/8 00/8 / / / / 0 0 φ 00/ φ 70 / φ φ φ 800/ /7, 8/7 800/7, 8/7 8/ / 800/7, 8/7 800/7, 8/7 A ef efective discharge area (m²) 0/ φ 0/ 0/ 0/, 0/, 00/, / 0/, 0/, 0/, 0/, M 00/, / 00/, / φ φ φ φ 0/, 0/, φ M O-8 K O-8 R O-8 R 00/8 O-8 R 0/, 0/, 00/, 0// 00/, / / O-8 K 00/8 / O-8 R 00/8 800/7, 8/7 00/, / M / / 800/7, 8/7 00/8 00/, φ / 00/, / 00/8 00/8 M M C φ 0/ 0/ M φ 0/ 0/ φ φ φ C φ 0/, 0/, φ 00/, / C φ 0/, 0/, φ 00/, / 00/, / 00/8 φ 00/8 φ 7 Fastening with four screws K / / 800/7, 8/ /7, φ / / 800/7, 8/7 800/7, 8/7 O-8 K O-8 R M φ 00/, / 00/, / 00/8 00/8 M O-8 K O-8 R M φ 00/, / 00/, / 00/8 00/8 M O-8K x M in the center 0/ O-8K x M on the flange φ 0/, 0/, 00/, / B 0/ B B M φ φ φ M φ M 00/, / 00/, / 00/, / 00/, / / 0/ M B φ 70 φ 800/7, 8/7 800/7, 8/7 φ770. φ770. φ φ C 70 φ770. C B O-8 K O-8 K 00/8 00/8 B φ770. φ770. φ 0, Variable swirl diffusers φ VENTILATING GRILLES, VENTILATING VALVES CIRCULAR IFFUSERS, SQUARE IFFUSERS M B SWIRL IFFUSERS, VARIABLE SWIRL IFFUSERS SLOT IFFUSERS, ROUN UCT IFFUSERS AIR ISPLACEMENT UNITS SUPPLY AIR NOZZLES EXTERNAL ELEMENTS AIR FLOW CONTROL UNITS SOUN ATTENUATORS, SOUN ATTENUATING LOUVRES

27 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 C and in the heating mode at temperatures above 0 C. Available in sizes 00/, /. Operation The swirl effect is used in the cooling mode, while all directional guides (rolls) have to be in the same position. In the heating mode, the regulation system rotates every second directional guide 90, 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 vertically towards the floor. St RAL 90 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/ / 00/, / 00/, / Note: O-8/TR are available in sizes 00/ and / only! φ O-8 00/, O-8 / heating V = 0.m/s H.0. (m) H = ΔT L L 0K ΔT = K L ΔT = K

28 Page Page 8, Page Page, O-8/K (square front plate) Size C A H h H Фd 00/8 K / K 9 0/ K 9 00/ K / K 0/ K 9 00/ K 9 / K 00/8 K / K 800/7 K /7 K 8 At sizes 00/8, 0/ and / an adapter with 9 mm height is added to the plenum box. Page 8, O-8/R (round front plate) Size Ф Ф A H h H Фd 00/8 R / R 0 0/ R / R / R 0/ R / R 00 0 / R 00/8 Page, R / R 800/7 R /7 R 8 A x A A x A 9 9 Component parts and dimensions. Plenum box. Inlet φ spigot. ispersing plate (only for supply). Volume φ control damper M. Traverse. iffuser O-8/K φ φ C x C C x C h H A x A A x A 9 9 Component parts and imensions φ. Plenum box. Inlet spigot φ. ispersing plate (only for supply) φ. Volume control damper M. Traverse. iffuser O-8/R 7. Adapter A x A A x A 9 9 φ φ 7 h H h H A x A φ φ 7 h H h H φ φ h H A x A, Variable swirl diffusers C x C φ φ A x A φ cd φ φ C x C H A x A φ cd φ φ H H H AIR FLOW CONTROL UNITS VENTILATING GRILLES, VENTILATING VALVES CIRCULAR IFFUSERS, SQUARE IFFUSERS SWIRL IFFUSERS, VARIABLE SWIRL IFFUSERS SLOT IFFUSERS, ROUN UCT IFFUSERS AIR ISPLACEMENT UNITS SUPPLY AIR NOZZLES EXTERNAL ELEMENTS A x A A x A 9 9 Page Page h H h H SOUN ATTENUATORS, SOUN ATTENUATING LOUVRES 7 7 φ φ 7

29 Round plenum box Size Ф Ф Фd H H 00/8R /R /R /R /R 98 0/R /R /R /8R Plenum box. Inlet spigot. Suspension bracket. ispersing plate (only for supply). Volume control damper (M). iffuser O-8 φ H H /R /7R /7R 8 φ Size Ф Ф Фd H 00/8R /R /R /R /R /R H 00/R /R /8R /R /7R /7R 8 9 φ φ 8

30 irection of deflectors and discharge Vertical discharge Air discharge - left Air discharge - right VENTILATING GRILLES, VENTILATING VALVES Air jet direction CIRCULAR IFFUSERS, SQUARE IFFUSERS a) swirl effect b) one-way discharge c) two-way discharge SWIRL IFFUSERS, VARIABLE SWIRL 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 LOUVRES SUPPLY AIR NOZZLES EXTERNAL ELEMENTS AIR FLOW CONTROL UNITS AIR ISPLACEMENT UNITS SLOT IFFUSERS, ROUN UCT IFFUSERS 9

31 Ordering key O 8 / TR / K / Z / S / M / I Size 00/8, 0/, 0/, 00/, 0/, 00/, /, 00/8, /, 800/7, 8/7 I Thermal insulation (PE), thickness mm on the outside of the plenum box I9 Sound and thermal insulation (from - C to C) thickness 9 mm on the outside of the plenum box (the material is synthetic rubber-based) I9 Sound and thermal insulation (from - C to C) thickness 9 mm on the outside of the plenum box (the material is synthetic rubber-based) M Volume control damper in the entry spigot OK Measuring damper (only in combination with- AR/S-air exhaust round plenum box side entry spigot and A/S air exhaust square plenum box side entry spigot) S Side entry spigot V Vertical entry spigot Z Supply air (square plenum box black plastic air deflectors and perforated sheet steel) ZR Supply air (round plenum box black plastic air deflectors and perforated sheet steel) ZW Supply air (square plenum box white plastic air deflectors and perforated sheet steel) ZWR Supply air (round plenum box white plastic air deflectors and perforated sheet steel) A Exhaust air (square plenum box without plastic air deflectors and without perforated plate) AR Exhaust air (round plenum box without plastic air deflectors and without perforated plate) K Square diffuser plate central fastening* K Square diffuser plate fastening with four screws* R Round diffuser plate central fastening only* R Round diffuser plate fastening with five screws (only 800/7 and 8/7)* TR Thermostat regulation (only sizes 00/ and /!) *size 800, 8 (K and R only): screws along the edge and one additional screw at the frontplate centre. K version for other dimensions is available only when ordering the diffuser plate without the plenum box. efinition of symbols Q (m³/h) Air flow x (m) Horizontal distance to the wall H (m) Room height H (m) istance from ceiling to occupied zone L (m) Throw distance (L=H+x) V L (m/s) Air velocity at the throw distance L Δt z (K) Temperate difference between the supply and room air Δt L (K) ifference between the core and room air temperature Δp t (Pa) Pressure drop L WA (db(a)) Sound power level V H (m/s) Air velocity at the H distance A, B (m) istance between diffusers by length and by width H L Q t z A,B V H t L Q tz x H L.8m V L t L

32 Fast selection diagram 00/8 O-8/V, Control flap angle - Pa VENTILATING GRILLES, VENTILATING VALVES 0/, 0/ 00/, / 0/ 00/, / - Pa - db(a) - db(a) CIRCULAR IFFUSERS, SQUARE IFFUSERS 00/8 / 800/7, 8/7 SWIRL IFFUSERS, VARIABLE SWIRL IFFUSERS 00/ O-8/S, Control flap angle - 0 Pa SLOT IFFUSERS, ROUN UCT IFFUSERS 0/, 0/ 00/, / 0/ 00/, / 0 - Pa 0 - db(a) - db(a) AIR ISPLACEMENT UNITS 00/8 / 800/7, 8/7 SUPPLY AIR NOZZLES EXTERNAL ELEMENTS SOUN ATTENUATORS, SOUN ATTENUATING LOUVRES AIR FLOW CONTROL UNITS

33 Air velocity at the throw distances and temperature quotient (with ceiling effect) v H (m/s) H= 0. L L L /8 B>m. L, Variable swirl diffusers 0 70 v H (m/s) 00/8 B=.....m H= v (m/s) A= / temperature quotient Δt L / Δt Z 0... distance A (m). distance A (m) distance L (m) v H (m/s) H= /,0/,00/,/ B>m v H (m/s) /,0/,00/,/ B=.....m H= v (m/s) /,0/,00/,/ A= temperature quotient Δt L / Δt Z distance L (m). distance A (m). distance A (m) 0/ B>m H=. 0/ B=.....m H=. 0 0/ A= v H (m/s) v H (m/s) v (m/s) temperature quotient Δt L / Δt Z distance L (m). distance A (m). distance A (m) v H (m/s) 00/,/ B>m H= distance A (m) v H (m/s) H= /,/ B=.....m distance A (m) v (m/s) 00/,/ A= distance L (m) temperature quotient Δt L / Δt Z

34 L L, Variable swirl diffusers Air velocity at the throw distance and temperature quotient (with ceiling effect) v H (m/s) v H (m/s) v H (m/s) H= H= H= /8 B>m / B>m B>m.. distance A (m) distance A (m) 800/7, 8/7 distance A (m) v (m/s) v H (m/s) v H (m/s) v (m/s) H B=.....m H= B=.....m H= B=.....m H= /8 / 800/7, 8/7 distance A (m) distance A (m) distance A (m) v (m/s) v L (m/s) v (m/s) A= A= /8 / A= /7, 8/7. distance L (m) distance L (m) distance L (m) temperature quotient Δt L / Δt Z SOUN ATTENUATORS, SOUN ATTENUATING LOUVRES temperature quotient Δt L / Δt Z temperature quotient Δt L / Δt Z VENTILATING GRILLES, VENTILATING VALVES CIRCULAR IFFUSERS, SQUARE IFFUSERS SWIRL IFFUSERS, VARIABLE SWIRL IFFUSERS SLOT IFFUSERS, ROUN UCT IFFUSERS AIR ISPLACEMENT UNITS SUPPLY AIR NOZZLES EXTERNAL ELEMENTS AIR FLOW CONTROL UNITS

35 Pressure drop and sound power level diagrams (Control flap angle: 90 opened, half opened) O-8/V 00/8 control položaj flap position lopute O-8/V 0/,0/,00/,/ flap O-8/V 0/ flap L WA (db(a)) ΔPt (Pa) L WA (db(a)) ΔPt (Pa) L WA (db(a)) ΔPt (Pa) O-8/S 0/,0/,00/,/ control položaj flap lopute position O-8/S O-8/V 0/,0/,00/,/ flap O-8/V O-8/S 0/ flap L WA (db(a)) ΔPt (Pa) L WA (db(a)) ΔPt (Pa) L WA (db(a)) ΔPt (Pa) O-8/V 00/,/ O-8/V O-8/S 00/ O-8/V / L WA (db(a)) 0 0 flap ΔPt (Pa) L WA (db(a)) 0 0 flap ΔPt (Pa) L WA (db(a)) 0 0 flap ΔPt (Pa) O-8/V O-8/S 00/,/ O-8/V O-8/S 00/ O-8/S / L WA (db(a)) 0 0 flap ΔPt (Pa) L WA (db(a)) 0 0 flap ΔPt (Pa) L WA (db(a)) 0 0 flap ΔPt (Pa) O-8/S O-8/V 800/7, 8/ O-8/S 800/7, 8/ L WA (db(a)) flap ΔPt (Pa) L WA (db(a)) flap ΔPt (Pa)

36 Swirl diffuser O-9 Square or round front mask Square or radial deflector arrangement Plastic deflectors Possible volume control damper in spigot Foam sealing on the flange Fastening of the plate St RAL 90 C VENTILATING GRILLES, VENTILATING VALVES CIRCULAR IFFUSERS, SQUARE IFFUSERS SWIRL IFFUSERS, VARIABLE SWIRL IFFUSERS A M Section A-A C A x A φ. M B M A B Section B-B M A x A φ. B SLOT IFFUSERS, ROUN UCT IFFUSERS AIR ISPLACEMENT UNITS SUPPLY AIR NOZZLES Fastening with four screws (xm) Central fastening (xm) Fastening with four screw is recommended by sizes 00 and. For size 800, fastening with five screws is always applied (xm + xm). EXTERNAL ELEMENTS Size A M B C A ef/k A ef/r A ef efective discharge area (m²) AIR FLOW CONTROL UNITS SOUN ATTENUATORS, SOUN ATTENUATING LOUVRES

37 ischarge direction and air jet shape Vertical discharge Air discharge - right Air discharge - left a) swirl effect b) one-way discharge c) two-way discharge Air discharge - left Air discharge - left Vertical discharge Air discharge - right Air discharge - right

38 iffuser face forms and blades arrangement O-9/KR O-9/RR O-9/KK VENTILATING GRILLES, VENTILATING VALVES Size 0 0 φ 0 0 CIRCULAR IFFUSERS, SQUARE IFFUSERS Size 0 9 φ0 9 SWIRL IFFUSERS, VARIABLE SWIRL IFFUSERS Size φ0 9 9 SLOT IFFUSERS, ROUN UCT IFFUSERS Size 00, 9 9 AIR ISPLACEMENT UNITS 9, 9, φ00, 9, 9, Size 800 AIR FLOW CONTROL UNITS 79 SUPPLY AIR NOZZLES φ EXTERNAL ELEMENTS SOUN ATTENUATORS, SOUN ATTENUATING LOUVRES 7

39 , Variable swirl diffusers φ φ φ φ φ φ φ φ O-9/KR, O-9/KK. Plenum box. Spigot. ispersing plate (only for supply). Volume control damper. Traverse (central fastening). iffuser O-9/KR, O-9/KK Page 8, Page 8, Size C A H H h Фd KR,KK KR,KK KR,KK KR,KK KR,KK KR,KK At sizes and 0 an adapter with 9 mm height is added to the plenum box. Component parts and dimensions: A x A A x A C x C C x C φ φ φ φ h H h H C x C C x C O-9/RR. Plenum box. Spigot. ispersing plate (only for supply). Volume control damper Page,Page,. Traverse (central fastening). iffuser O-9/RR 7. Adapter Component parts and dimensions: A x A A x A 9 9 H H A x A φ cd A x A φ cd Size Ф Ф A H H h Фd RR RR RR RR h h φ φ φ φ H H RR φ φ φ φ 800 RR Round plenum box φ. Plenum box. Inlet spigot. Suspension bracket. ispersing plate (only for supply). Volume control damper. iffuser O-9 A x A A x A 9 9 H H H H h h Page Page 7 H 7 φ φ φ Size Ф Ф H Фd Size Ф Ф H H Фd RR,KR RR,KR φ RR,KR RR,KR RR,KR RR,KR RR,KR φ φ A 0 RR,KR RR,KR φ A RR,KR RR,KR RR,KR

40 Ordering key O-9 / KK / Z / S / M / I Size, 0, 0, 00,, 800 VENTILATING GRILLES, VENTILATING VALVES I Thermal insulation (PE), thickness mm on the outside of the plenum box I9 Sound and thermal insulation (from - C to C) thickness 9 mm on the outside of the plenum box (the material is synthetic rubber-based) I9 Sound and thermal insulation (from - C to C) thickness 9 mm on the outside of the plenum box (the material is synthetic rubber-based) M Volume control damper in spigot OK Measuring damper (only in combination with- AR/S-air exhaust round plenum box side entry spigot and A/S-air exhaust square plenum box side entry spigot) S Side entry spigot V Vertical entry spigot Z Supply air (square plenum box black plastic air deflectors and perforated sheet steel) ZR Supply air (round plenum box black plastic air deflectors and perforated sheet steel) ZW Supply air (square plenum box white plastic air deflectors and perforated sheet steel) ZWR Supply air (round plenum box white plastic air deflectors and perforated sheet steel) A Exhaust air (square plenum box without plastic air deflectors and without perforated plate) AR Exhaust air (round plenum box without plastic air deflectors and without perforated plate) KK Square diffuser plate, square blade arrangement central fastening KK Square diffuser plate, square blade arrange fastening with four screws* KR Square diffuser plate, radial blade arrangement central fastening KR Square diffuser plate, radial blade arrangement fastening with four screws* RR Circular diffuser plate, radial blade arrangement central fastening RR Circular diffuser plate, radial blade arrangement fastening with five screws (size 800 only)* Fastening with four screw is recommended for sizes 00,. *size 800 (KK, KR and RR): screws along the edge and one additional screw at the frontplate centre. Versions KK and KR for dimensions, 0 and 0 are available only when ordering the diffuser plate without the plenum box. CIRCULAR IFFUSERS, SQUARE IFFUSERS SWIRL IFFUSERS, VARIABLE SWIRL IFFUSERS SLOT IFFUSERS, ROUN UCT IFFUSERS AIR ISPLACEMENT UNITS efinition of symbols Q (m³/h) Air flow x (m) Horizontal distance to the wall H (m) Room height H (m) istance from ceiling to occupied zone L (m) Throw distance (L=H+x) V L (m/s) Air velocity at the throw distance L Δt z (K) Temperate difference between the supply and room air Δt L (K) ifference between the core and room air temperature Δp t (Pa) Pressure drop L WA (db(a)) Sound power level V H (m/s) Air velocity at the H distance A, B (m) istance between diffusers by length and by width H L Q t z A,B V H t L Q tz x H L.8m V L t L SOUN ATTENUATORS, SOUN ATTENUATING LOUVRES SUPPLY AIR NOZZLES EXTERNAL ELEMENTS AIR FLOW CONTROL UNITS 9

41 Air velocity at the throw distances and temperature quotient (with ceiling effect) v (m/s) H O-9/KK size B>m H= v H (m/s) O-9/KR, RR size B<m H= v L (m/s) O-9/KK size A= Δt L / Δt Z temperature quotient Δt L / Δt Z. distance A (m). distance A (m) 0.. distance L (m) O-9/KR, RR size B>m H=0.8. O-9/KK size B<m H=0.8.. v H (m/s) v H (m/s) v L (m/s) O-9/KR, RR size A= Δt L / Δt Z temperature quotient Δt L / Δt Z 0.. distance A (m). distance A (m) 0.. distance L (m) O-9/KK size 0 B>m H=0.8. O-9/KK size 0 B<m H=0.8. O-9/KK size 0 A= v H (m/s) v H (m/s) v L (m/s) Δt L / Δt Z temperature quotient Δt L / Δt Z distance A (m). distance A (m) 0.. distance L (m) O-9/KR,RR size 0 B>m H=0.8. O-9/KR,RR size 0 B<m H=0.8. O-9/KR,RR size A= v H (m/s) v H (m/s) v L (m/s) Δt L / Δt Z temperature quotient Δt L / Δt Z. distance A (m). distance A (m) distance L (m)

42 Air velocity at the throw distances and temperature quotient (with ceiling effect) v H (m/s) H= O-9/KK size 0 B>m distance A (m) v H (m/s) O-9/KK size 0 B<m H= distance A (m) v L (m/s) O-9/KK size 0 A=. Δt L / Δt Z distance L (m) temperature quotient Δt L / Δt Z VENTILATING GRILLES, VENTILATING VALVES CIRCULAR IFFUSERS, SQUARE IFFUSERS SWIRL IFFUSERS, VARIABLE SWIRL IFFUSERS O-9/KR,RR size 0 B>m H= O-9/KR,RR size 0 B<m H= A= 0.80 O-9/KR,RR size SLOT IFFUSERS, ROUN UCT IFFUSERS v H (m/s) v H (m/s) v L (m/s) Δt L / Δt Z temperature quotient Δt L / Δt Z O-9/KK size 00 B>m H=.. distance A (m) O-9/KK size 00 B<m H=.. distance A (m) distance L (m) v H (m/s) distance A (m) v H (m/s) distance A (m) v L (m/s) O-9/KK size 00 A= Δt L / Δt Z. distance L (m) SOUN ATTENUATORS, SOUN ATTENUATING LOUVRES AIR ISPLACEMENT UNITS SUPPLY AIR NOZZLES temperature quotient Δt L / Δt Z EXTERNAL ELEMENTS AIR FLOW CONTROL UNITS

43 Air velocity at the throw distances and temperature quotient (with ceiling effect) v H (m/s) H= O-9/KR,RR size 00 B>m v H (m/s) H= O-9/KR,RR size 00 B<m H= v L (m/s) O-9/KR,RR size 00 A= Δt L / Δt Z temperature quotient Δt L / Δt Z distance A (m). distance A (m) distance L (m) v H (m/s) O-9/KK size 800 B>m H= v H (m/s) O-9/KK size 800 B<m H= v L (m/s) O-9/KK size 800 A= Δt L / Δt Z temperature quotient Δt L / Δt Z distance A (m) distance A (m) distance L (m) v H (m/s) O-9/KR,RR size 800 B>m H= v H (m/s) O-9/KR,RR size 800 B<m H= v L (m/s) O-9/KR,RR size 800 A= Δt L / Δt Z temperature quotient Δt L / Δt Z distance A (m) distance A (m) 0. distance L (m) 0.0

44 Pressure drop and sound power level Control flap angle: 90 opened, half opened O-9/K size O-9/R size O-9/K size 0 O-9/R size 0 flap flap flap flap VENTILATING GRILLES, VENTILATING VALVES Δp t (Pa) Δp t (Pa) Lw(dB(A)) 0 closed open Lw(dB(A)) closed open 0 Lw(dB(A)) Q(m /h) Q(m /h) Q(m /h) Q(m /h) O-9/K size 0 O-9/R size 0 0 open closed flap Δp t (Pa) Δp t (Pa) open closed open O-9/K size 800 O-9/R size 800 flap closed Lw(dB(A)) 0 open 0 Lw(dB(A)) flap Q(m /h) Lw(dB(A)) closed O-9/K size 00, O-9/R size 00, flap Lw(dB(A)) Q(m /h) Q(m /h) Q(m /h) Δp t (Pa) Δp t (Pa) Δp t (Pa) Δp t (Pa) 0 0 open Lw(dB(A)) closed flap closed open Q(m /h) Δp t (Pa) Δp t (Pa) closed open open Lw(dB(A)) 0 0 Lw(dB(A)) Q(m /h) closed flap SOUN ATTENUATORS, SOUN ATTENUATING LOUVRES CIRCULAR IFFUSERS, SQUARE IFFUSERS SWIRL IFFUSERS, VARIABLE SWIRL IFFUSERS SLOT IFFUSERS, ROUN UCT IFFUSERS AIR ISPLACEMENT UNITS SUPPLY AIR NOZZLES EXTERNAL ELEMENTS AIR FLOW CONTROL UNITS

45 Swirl diffuser O- Application Suitable for cooling, heating and transition periods, Effective operation across the wide range of air flows, Installation into suspended ceilings. St RAL 90 Advantages Higher outlet air velocity at the nozzle: achieving a more intensive ceiling effect, Achieving of higher throw distance in the heating mode, Lower static pressure drop, Silent operation, High induction. escription Large number of rotational nozzles allows for variable and precise discharge direction, Metal part of the diffuser plate is powder- coated in RAL 90 or according to customer specifications, Square diffuser plate with the rectangular nozzle layout KK version, Square diffuser plate with the circular nozzle layout KR version, Circular diffuser plate with the circular nozzle layout RR version. Features of a single nozzle Aerodynamic shape, istinctive and discrete design. O-/KK O-/KR O-/RR Size AxA AxA φ A Size AxA AxA φ A

46 O-/KK O-/KR O-/RR Size 0 KK KK VENTILATING GRILLES, VENTILATING VALVES Size 00, AxA 0 AxA AxA 0 φ A 0 SWIRL IFFUSERS, VARIABLE SWIRL IFFUSERS 0 SLOT IFFUSERS, ROUN UCT IFFUSERS CIRCULAR IFFUSERS, SQUARE IFFUSERS AxA AxA φ A AIR ISPLACEMENT UNITS imension 00KK 00KR 00RR 0KK 0KR 0RR 0KK 0KR 0RR 00KK 00KR 00RR KK KR RR AxA (mm) 9x9 9x9 ø00 9x9 9x9 ø0 9x9 9x9 ø0 9x9 9x9 ø00 x x ø Number of nozzles * tolerances according to standard IN 78 T, middle tolerance class (m) ±0.8 mm SUPPLY AIR NOZZLES efinition of symbols Q (m³/h) Air flow x (m) Horizontal distance to the wall H (m) Room height H (m) istance from ceiling to occupied zone L (m) Throw distance (L=H+x) V L (m/s) Air velocity at the throw distance L Δt z (K) Temperature difference between supply and room air Δt L (K) Temperature difference between air jet and room temperature Δp t (Pa) Pressure drop L WA (db(a)) Sound power level V H (m/s) Air velocity at the H distance A, B (m) istance between diffusers by length and by width L 0. Isothermal throw lenght, when velocity of supply air jet 0, m/s for way discharge H L Q t z A,B V H t L Q tz x H L.8m V L t L EXTERNAL ELEMENTS AIR FLOW CONTROL UNITS SOUN ATTENUATORS, SOUN ATTENUATING LOUVRES

47 Quick selection tabels Type O-/KK/Z/S/M size 00 ød= O-/KK/Z/V/M size 00 ød= Q [l/s],7,7 8,,, 9, [m³/h] 7 0 L WA [db (A)] 8 9 p t [Pa] L 0. [m],8,,8,0, L WA [db (A)] p t [Pa] 7 7 Type O-/KR/ZR/S/M size 00 ød=0 O-/KR/ZR/V/M size 00 ød=0 Q [l/s], 7,8,7,7 8,, [m³/h] L WA [db (A)] p t [Pa] 7 7 L 0. [m],9,7,9,, L WA [db (A)] 9 7 p t [Pa] 9 Type O-/KK/Z/S/M size 0 ød=0 O-/KK/Z/V/M size 0 ød=0 Q [l/s], 9, 8, 97,,,0 [m³/h] L WA [db (A)] 8 9 p t [Pa] L 0. [m],8,,,, L WA [db (A)] 8 8 p t [Pa] Type O-/KR/ZR/S/M size 0 ød=0 O-/KR/ZR/V/M size 0 ød=0 Q [l/s],7 8,,, 9, 8, [m³/h] L WA [db (A)] 8 8 p t [Pa] 9 0 L 0. [m],9,,7,,,7 L WA [db (A)] p t [Pa] 9 9 Type O-/KK/Z/S/M size 0 ød=0 O-/KK/Z/V/M size 0 ød=0 Q [l/s] 9, 8, 97,,,0 8,9 [m³/h] L WA [db (A)] 9 7 p t [Pa] 8 L 0. [m],8,,,8,, L WA [db (A)] 8 7 p t [Pa] Type O-/KR/ZR/S/M size 0 ød=0 O-/KR/ZR/V/M size 0 ød=0 Q [l/s], 9, 8, 97,,,0 [m³/h] L WA [db (A)] 8 7 p t [Pa] L 0. [m],9,,,9,,7 L WA [db (A)] 9 7 p t [Pa]

48 Type O-/KK/Z/S/M size 00, ød= O-/KK/Z/V/M size 00, ød= Type O-/KR/ZR/S/M size 00, ød= O-/KR/ZR/V/M size 00, ød= Q [l/s] 97,,,0 8,9,8,7 [m³/h] L WA [db (A)] 9 9 p t [Pa] 7 L 0. [m],,,,,8 L WA [db (A)] 9 8 p t [Pa] Q [l/s] 97,,,0 8,9,8,7 [m³/h] L WA [db (A)] 0 7 p t [Pa] 7 8 L 0. [m],8,,8,7,, L WA [db (A)] 0 7 p t [Pa] 7 8 VENTILATING GRILLES, VENTILATING VALVES CIRCULAR IFFUSERS, SQUARE IFFUSERS SWIRL IFFUSERS, VARIABLE SWIRL IFFUSERS * L WA and Δp t are given at % open regulation damper Round plenum box AIR ISPLACEMENT UNITS SLOT IFFUSERS, ROUN UCT IFFUSERS H φ A h H SUPPLY AIR NOZZLES φ A (V) top entry spigot (S) side entry spigot (OK) measuring damper EXTERNAL ELEMENTS Size and type øa (mm) H (mm) ød (mm) h (mm) H (mm) 00KR,RR KR,RR KR,RR KR,RR KR,RR * tolerances according to standard IN 78 T, middle tolerance class (m) ±0.8 mm AIR FLOW CONTROL UNITS SOUN ATTENUATORS, SOUN ATTENUATING LOUVRES 7

49 Square plenum box A x A nd AxA h H H (S) side entry spigot (V) top entry spigot (OK) measuring damper Size and type AxA (mm) H (mm) H (mm) h (mm) ød (mm) 00KK 80x80 0 0KK 90x KK 90x KK 90x KK 90x * tolerances according to standard IN 78 T, middle tolerance class (m) ±0.8 mm Pressure drop, sound level amper opening: 0 % closed, % opened Δp t (Pa) Δp t (Pa) KK/Z/S/M 0KK/Z/S/M 0 0 L WA [db(a)] L WA [db(a)] 0% 0% 0% 0% % % Q(m³/h) 00 0 Q(m³/h) 00 0 Δp t (Pa) Δp t (Pa) KK/Z/V/M 0KK/Z/V/M 0% 0% 0% 0% % 0 % 0 L WA [db(a)] L WA [db(a)] Δp t (Pa) Δp t (Pa) Q(m³/h) 00 0 Q(m³/h) KR/ZR/S/M 0KR/ZR/S/M 0% 0% % 0% 0 % Q(m³/h) Q(m³/h) L WA [db(a)] L WA [db(a)] Δp t (Pa) Δp t (Pa) 0KR/ZR/V/M 0KR/ZR/V/M 0 0 L WA [db(a)] L WA [db(a)] 0% 0% 0% % % Q(m³/h) Q(m³/h) Δp t (Pa) Δp t (Pa) KK/Z/S/M 0% 0KK/Z/V/M 0% 0KR/ZR/S/M 0KR/ZR/V/M 0% 0KK/Z/S/M 0% 0KK/Z/V/M 0% 0KR/ZR/S/M 0% 0KR/ZR/V/M 0% 0% 0% 0% 0% 0% 0% % 0% % 0% % 0% % % 0 % % % Q(m³/h) Q(m³/h) Q(m³/h) Q(m³/h) Q(m³/h) Q(m³/h) Q(m³/h) Q(m³/h) L WA [db(a)] L WA [db(a)] Δp t (Pa) Δp t (Pa) L WA [db(a)] L WA [db(a)] Δp t (Pa) Δp t (Pa) L WA [db(a)] L WA [db(a)] Δp t (Pa) Δp t (Pa) L WA [db(a)] L WA [db(a)] Δp t (Pa) Δp t (Pa) ,KK/Z/S/M 00,KK/Z/S/M 0% 0% 0% % 0% % L WA [db(a)] L WA [db(a)] Q(m³/h) Q(m³/h) Δp t (Pa) Δp t (Pa) ,KK/Z/V/M 00,KK/Z/V/M 0% 0% 0% 0% % % L WA [db(a)] L WA [db(a)] Δp t (Pa) Δp t (Pa) Q(m³/h) Q(m³/h) ,KR/ZR/S/M 00,KR/ZR/V/M 00,KR/ZR/S/M 00,KR/ZR/V/M 0% 0% % 0% % L WA [db(a)] L WA [db(a)] Δp t (Pa) Δp t (Pa) Q(m³/h) Q(m³/h) L WA [db(a)] L WA [db(a)] 0% 0% 0% 0% % % Q(m³/h) Q(m³/h) 8 00KK/Z/S/M 00KK/Z/V/M 00KK/Z/S/M 0% 0% 0% 0% 00KK/Z/V/M 0% 0% 0% 0% % % % % 00KR/ZR/S/M 00KR/ZR/S/M 0% 0% 0% % 0% % 00KR/ZR/V/M 00KR/ZR/V/M 0% 0% 0% % 0% %

50 Δp t (Pa) 00KK/Z/S/M 00KK/Z/V/M 0% 0% 0% 0% % % L WA [db(a)] 7 0 Q(m³/h) 7 0 Q(m³/h) Q(m³/h) Q(m³/h) Type octave [Hz] 0 k k k 8k O-/KK/Z/S/M size O-/KK/Z/V/M size O-/KR/ZR/S/M size O-/KR/ZR/V/M size O-/KK/Z/S/M size O-/KK/Z/V/M size O-/KR/ZR/S/M size O-/KR/ZR/V/M size O-/KK/Z/S/M size O-/KK/Z/V/M size O-/KR/ZR/S/M size O-/KR/ZR/V/M size O-/KK/Z/S/M size 00, 7 7 O-/KK/Z/V/M size 00, 9 8 O-/KR/ZR/S/M size 00, 8 7 O-/KR/ZR/V/M size 00, 9 8 * Sound attenuation represents insertion losses; this means reduction in the level of sound power due to the inserted unit (swirl diffuser O-). Ordering key: Δp t (Pa) L WA [db(a)] O- / KK / A / S / M Size 00, 0, 0, 00, Δp t (Pa) 0 0 Sound attenuation* [db] 00KR/ZR/S/M L WA [db(a)] 0% 0% % Δp t (Pa) KR/ZR/V/M L WA [db(a)] 0% 0% % VENTILATING GRILLES, VENTILATING VALVES CIRCULAR IFFUSERS, SQUARE IFFUSERS SWIRL IFFUSERS, VARIABLE SWIRL IFFUSERS SLOT IFFUSERS, ROUN UCT IFFUSERS AIR ISPLACEMENT UNITS SUPPLY AIR NOZZLES M Volume control damper in the entry spigot OK Measuring damper (only in combination with AR/S air exhaust round plenum box side entry spigot and A/S air exhaust square plenum box side entry spigot) S Side entry spigot V Vertical entry spigot A Exhaust air square plenum box Z Supply air square plenum box AR Exhaust air round plenum box ZR Supply air round plenum box KK Square diffuser plate, square nozzle arrangement central fastening KK Square diffuser plate, square nozzle arrangement fastening with four screws KR Square diffuser plate, radial nozzle arrangement central fastening KR Square diffuser plate, radial nozzle arrangement, fastening with four screws RR Circular diffuser plate, radial nozzle arrangement central fastening Fastening with four screw is recommended for size 00,. Versions KK and KR for dimensions 00, 0 and 0 are available only when ordering the diffuser plate without the plenum box. EXTERNAL ELEMENTS AIR FLOW CONTROL UNITS SOUN ATTENUATORS, SOUN ATTENUATING LOUVRES 9

51 Variable swirl diffusers Variable swirl diffusers Variable swirl diffuser O- Application iffuser is designed for air conditioning of rooms with floor to ceiling highs of to m and high induction requirements. It is suitable for large temperature difference between supply and room air. escription iffuser is made of housing which has a diffusing funnel mounted at the bottom. The direction of the discharged air is altered via the separately adjustable blades. The shape of the diffuser s inner part allows Coanda effect. Housing consists of sheet aluminium and blades of pickled sheet steel. Complete diffuser is powder painted in RAL 90 or any colour upon customer s request. AI RAL 90 M C Individually adjustable blades O- Use of the individually adjustable blades is recommended when the ventilation system is designed for the specific mode of operation and the blades can be adjusted during the diffuser installation. Variable swirl diffuser O-V Version O-V has centrally adjustable blades. Blades can be manually adjustable or by the means of electric motor installed on the outer side of the diffuser or by thermostat regulation. iffuser is capable of altering discharge direction. Variable swirl diffuser with the thermostat regulation O-V/TR O-V/TR diffuser has a basic implementation of O-V upgraded thermostatically controlled. Automatic continuous regulation operates as a function of the temperature of air flowing through the diffuser. With additional configuration before installation to ensure optimum operation of the demands of comfort in the room. Regulation with the O-V/ /RR handle Regulation with this handle enables manual blade angle adjustment if the diffuser placement allows acess to the handle. This type of regulation is suitable for buildings with a lower number of diffusers when the ventilation system is designed for both summer and winter operation.. handle. fixing screw

52 Variable swirl diffusers O-V with the AT- thermostat with analogue output escription The AT- differential thermostat with continuous analogue output is a controller that, based on the duct air temperature and room temperature signals, automatically adjusts the angle of O-V blades as required. One AT- can operate up to O-V units. VENTILATING GRILLES, VENTILATING VALVES CIRCULAR IFFUSERS, SQUARE IFFUSERS Operation The controller compares the selected temperature curve, which is set according to the O-V position, desired mode of operation, etc, with data received from temperature sensors located in the air supply duct and in the room. Taking into account the desired temperature difference, the controller generates a continuous analogue 0-V C output signal, which is then transmitted to the O-V electric motor drive. Comparing the temperature, the controller automatically recognises the heating or cooling mode and sets the O-V accordingly. In the case the duct air temperature is higher than the room temperature, the controller switches the O-V to the heating mode, i.e. to the vertical supply of warm air into the room. In the case the duct air temperature is lower than the room temperature, the controller automatically infers that the system is in the room cooling mode and accordingly generates a signal to set the O-V to the cooling mode. Advantage Applying AT-, the need for manual switching of a large number of O-V units to the proper operational mode is avoided, since the controller switches the units automatically. In this way, the efficiency of room air conditioning is enhanced as well. AT- differential thermostat. controller. room temperature sensor. duct temperature sensor. compact actuator (B, B, B9) T T air temperature in the duct ( C) T air temperature in the room ( C) T<T: cooling the blade angle is towards 0 T>T: heating the blade angle is towards 90 SWIRL IFFUSERS, VARIABLE SWIRL IFFUSERS SLOT IFFUSERS, ROUN UCT IFFUSERS AIR ISPLACEMENT UNITS SUPPLY AIR NOZZLES EXTERNAL ELEMENTS AIR FLOW CONTROL UNITS T SOUN ATTENUATORS, SOUN ATTENUATING LOUVRES

53 Variable swirl diffusers Variable diffuser with the thermostat regulation O-V/TR Operation At O-V/TR diffuser, centrally adjustable blades can be adjusted automatically with the thermostat regulation. Thermostat perceives temperature of the supply air and automatically adjusts the blades angle. No additional power supply and controls are required, so no additional wiring installation is needed. Blade angle according to the supply air temperature is shown in the chart below. A hysteresis behavior of the thermostatic head in both cooling and heating mode is shown in the chart. After the temperature is stabilized, angle of the blades is adjusted to the medium value in about minutes. AI RAL 90 C Angle of the blades ( ) Size O-V/TR diffuser can be made in sizes 0,,, 0, 0, 0 and 800 (sizes and 0 are not available). ecrease of temperature Temperature ( C) Increase of temperature Regulation of the initial and final blade angle O-V/TR allows the regulation of the initial and final blade angle. uring the selection of appropriate diffuser for certain room conditions with the Klima AE software package, exact angles are calculated according to the installation height of the diffuser, supplied air quantity and the temperature difference between supplied and room temperature. Calculation is based on air flow speed of 0. m/s in the living area. Initial blade angle is preadjusted with the special nut in the range between 0 and. Automatic opening of the blades is initiated, when the temperature reaches limit value, shown in the chart according to the preadjusted angle and number of used spacers. When initial angle of is preadjusted without additional spacers and final angle is 7, blade opening temperature is between. and C (designation in diagram). Final blade angle is adjusted by adding spacers below thermostatic head. efault preassembled spacer allow complete opening of the blades until 7. By each added spacer, final angle is reduced for. Adding of spacers also change the thermostatic head characteristics (average values according to the number of added spacers are shown in the chart). Angle of the blades ( ) Mean value Temperature ( C) 0 Nr. of spacers added 0 Final blade angle

54 Variable swirl diffusers Calculation example of initial and final blade angle for the O-V/TR diffuser with the Klima AE. software package VENTILATING GRILLES, VENTILATING VALVES Input data: Air quantity Air temperature Room size iffuser size SWIRL IFFUSERS, VARIABLE SWIRL IFFUSERS Calculation Result of the calculation: minimum angle in the cooling mode = Result of the calculation: maximum angle in the heating mode = 0 Angle adjustment (designation in diagram): Angle adjustment (designation in diagram): SUPPLY AIR NOZZLES CIRCULAR IFFUSERS, SQUARE IFFUSERS SLOT IFFUSERS, ROUN UCT IFFUSERS AIR ISPLACEMENT UNITS Summer: cooling Transitionalperiod: automatic adjustment of blade angle to the supply air temperature for 0 three spacers should be used Winter: heating EXTERNAL ELEMENTS SOUN ATTENUATORS, SOUN ATTENUATING LOUVRES AIR FLOW CONTROL UNITS

55 Variable swirl diffusers imensions Size Ф Ф C C A ef (m²) A ef efective discharge area (m²) Actuator ispersing plate Installation of diffuser on a plenum box. Plenum box. Inlet spigot. ispersing plate. Volume control damper M. Traverse. iffuser O-, O-V, O-V/TR 7. Adapter A x A 9 h H Size A H h Фd Ф ФA φ φ A Round plenum box. Plenum box. Inlet spigot. Suspension bracket. Volume control damper M. ispersing plate. iffuser O-, O-V, O-V/TR H H Size Ф H H Фd φ φ

56 Variable swirl diffusers Ordering key O- / P / Z / M / I Size 0 Ordering key O- V / P / B / Z / M / I Size 0 *ispenser plate is not installed if the chamber is used for installation. I Thermal insulation (PE), thickness mm on the outside of the plenum box I9 Sound and thermal insulation (from - C to C) thickness 9 mm on the outside of the plenum box (the material is synthetic rubber-based) I9 Sound and thermal insulation (from - C to C) thickness 9 mm on the outside of the plenum box (the material is synthetic rubber-based) M Volume control damper OK Measuring damper (only in combination with- AR/S-air exhaust round plenum box side entry spigot and A/S-air exhaust square plenum box side entry spigot) Z Air supply (square plenum box) ZR Air supply (round plenum box) P With dispersing plate* *ispenser plate is not installed if the chamber is used for installation. 0 Size (minimum size for O-V/TR is 0) I Thermal insulation (PE), thickness mm on the outside of the plenum box I9 Sound and thermal insulation (from - C to C) thickness 9 mm on the outside of the plenum box (the material is synthetic rubber-based) I9 Sound and thermal insulation (from - C to C) thickness 9 mm on the outside of the plenum box (the material is synthetic rubber-based) M Volume control damper OK Measuring damper (only in combination with- AR/S-air exhaust round plenum box side entry spigot and A/S-air exhaust square plenum box side entry spigot) Z Air supply (square plenum box) ZR Air supply (round plenum box) TR Thermostat regulation R Manual control RR Manual control with handle on the outside of the diffuser (only for dimensions from 0 to 800) Actuator driven: B Belimo LM A B Belimo LM A B Belimo LM A-SR J Joventa AN.N J Joventa AN.N J Joventa MN.N Actuators for size 0 B Belimo NM A B Belimo NM A B Belimo NM A-SR J Joventa AS.N J Joventa AS.N J Joventa MS Actuators for size 800 B7 Belimo SM A B8 Belimo SM A B9 Belimo SM A-SR J7 Joventa A J8 Joventa A J9 Joventa M. P with dispersing plate* V centrally adjustable VENTILATING GRILLES, VENTILATING VALVES CIRCULAR IFFUSERS, SQUARE IFFUSERS SWIRL IFFUSERS, VARIABLE SWIRL IFFUSERS SLOT IFFUSERS, ROUN UCT IFFUSERS AIR ISPLACEMENT UNITS SUPPLY AIR NOZZLES EXTERNAL ELEMENTS AIR FLOW CONTROL UNITS SOUN ATTENUATORS, SOUN ATTENUATING LOUVRES

57 Variable swirl diffusers efinition of symbols L A,B Q (m³/h) Air flow x (m) Horizontal distance to the wall H (m) Room height H (m) istance from ceiling to occupied zone L (m) Throw distance (L=H+x) V L (m/s) Air velocity at the throw distance L Δt z (K) Temperate difference between the supply and room air Δt L (K) ifference between the core and room air temperature Δp t (Pa) Pressure drop L WA (db(a)) Sound power level V H (m/s) Air velocity at the H distance A, B (m) istance between diffusers by length and by width H Q t z V H t L Q tz x H L.8m V L t L iagram for fast selection IAGRAM FAST SELECTION Corections In the case of the diffuser installation in the ceiling, the velocity Vh at the level A/+H is to be multiplied with a factor of. (due to the Coanda effect). The above applies to the cases of heating and cooling operation with blade opening angles less than 0. O-V size O-V size 0 O-V size 0 O-V size O-V size Cooling Heating Blade angle - db(a) - db(a) O-V size 0 O-V size 0 O-V size 0 O-V size Examples for selection, and : see the following pages. iffuser size as a function of distance between units and effective velocity Recomended size A,B (m) v ef (m/s) 0.

58 Blade opening angle during heating and cooling operation Calculation Example (cooling) Q = 0 m³/h H = m H = H-,8 = -,8 =, m v H = 0, m/s ΔT z = - K Recommended size: O-V COOLING Blade angle, Variable swirl diffusers Variable swirl diffusers ΔT z VENTILATING GRILLES, VENTILATING VALVES CIRCULAR IFFUSERS, SQUARE IFFUSERS v ef = Q/(A ef 00) = 0/(0,0 00) v ef =, m/s v H/v ef = 0,/, = 0,0 Blade angle: Example (heating) Q = 0 m³/h H = m H =, m v H = 0, m/s ΔT z = K Recommended size: v ef =,7 m/s Blade angle: ΔT z 0, 0, 8 0,0 0,0 0,0 0, 0, H (m) v H / v ef HEATING SWIRL IFFUSERS, VARIABLE SWIRL IFFUSERS SLOT IFFUSERS, ROUN UCT IFFUSERS 7 0,,0,,0, v ef (m/s) H (m) AIR ISPLACEMENT UNITS O-V 0 COOLING Blade angle T z SUPPLY AIR NOZZLES EXTERNAL ELEMENTS T z H (m) HEATING 0,0 0,0 0,0 0, 0, v H / v ef AIR FLOW CONTROL UNITS v ef (m/s) 0,,, H (m) SOUN ATTENUATORS, SOUN ATTENUATING LOUVRES 7

59 Variable swirl diffusers Blade opening angle during heating and cooling operation Calculation O-V 0 COOLING Blade angle T z Example (cooling) Q = m³/h H =, m v H = 0, m/s ΔT z = - K Recommended size: 0 v ef = Q/(A ef 00) = /(0,0 00) v ef =, m/s v H/v ef = 0,/, = 0,0 Blade angle: ((Blade angle Coanda effect) H =,, =,9 m H = H+,8 =,9+,8 =,7 m or H =, v H = 0,, = 0, m/s T z 0,0 H (m) HEATING 0,0 0,0 0, 0, v H / v ef 7 v ef (m/s) H (m) O-V COOLING Blade angle ΔT z O-V COOLING Blade angle ΔT z - K - K - K - K 7 0,0 HEATING H (m) 0,0 0,0 0, 0, v H / v ef 8 0,0 0,0 0,0 H (m) HEATING + K + K + K 0, 0, v H / v ef ΔT z ΔT z + K + K + K 7 v ef (m/s) H (m) v ef (m/s) H (m) 8

60 Variable swirl diffusers Blade opening angle during heating and cooling operation O-V 0 O-V 0 COOLING Blade angle ΔT z COOLING Blade angle ΔT z VENTILATING GRILLES, VENTILATING VALVES - K - K - K - K CIRCULAR IFFUSERS, SQUARE IFFUSERS ,0 0,0 0,0 0, 0, H (m) v H / v ef HEATING ΔT z + K + K + K ,0 H (m) HEATING ΔT z + K + K + K 0,0 0,0 0, 0, v H / v ef SWIRL IFFUSERS, VARIABLE SWIRL IFFUSERS SLOT IFFUSERS, ROUN UCT IFFUSERS v ef (m/s) H (m) v ef (m/s) H (m) AIR ISPLACEMENT UNITS Calculation Example (cooling) Q = 700 m³/h v H = 0, m/s Δt z = - K H = 9 m H = 9-,8 = 7, m Recommended size: 0 v ef = Q/(A ef 00) = 700/(0, 00) v ef =, m/s v H/v ef = 0,/, = 0,08 Blade angle: O-V 0 COOLING Blade angle ,0 0,0 0,0 0, 0, H (m) v H / v ef ΔT HEATING z + K + K + K ΔT z + K + K + K SUPPLY AIR NOZZLES EXTERNAL ELEMENTS AIR FLOW CONTROL UNITS v ef (m/s) H (m) SOUN ATTENUATORS, SOUN ATTENUATING LOUVRES 9

61 Variable swirl diffusers Blade opening angle during heating and cooling operation O-V 800 COOLING Blade angle ΔT z ,0 0,0 0,0 0, 0, H (m) v / v H ef ΔT HEATING z v ef (m/s) H (m) Pressure drops and sound power level (for version with dispersing plate) O-V Size PRESSURE ROPS AN SOUN POWER LEVEL v ef (m/s) L WA (db(a)), Q (m /h) Δp t (Pa) Calculation Example (cooling) Q = m³/h L WA = 7 db(a) Δp = 7 Pa Blade angle: Example (cooling) Q = 700 m³/h L WA = 7 db(a) Δp = Pa Blade angle: 0

62 Active VAV iffuser O- Supply air unit for ceiling mounting in active and non-active version. Standard color is white RAL 90 0 % gloss, other RAL colors on request. Supply (active) and exhaust (non-active) version. Nominal sizes from 0. Stable supply air throw length over a wide supply air temperature range active version. Available with plenum with air flow adjustment and measuring device. Air flows from to 700 m³/h. Active diffuser version comes standard equipped with the Belimo LHA-MP actuator. iffuser is made of steel (all parts) and powder coated in RAL 90 may be painted in any RAL colour on request. Function (Active version) The O- is an active ceiling diffuser for supply air. Air is supplied to the room mainly through side slots, and this causes induction through the horizontal holes. The diffuser maintains high outlet velocity, not depending on air flow, and that means larger throw distances over the whole air flow range. The diffuser creates comfortable conditions and no draught in an occupied zone. An external room controller varies the room air flow rate by changing the position of diffusers hat driven by the Belimo actuator with a standard -V control signal. Function (Non active version) Non-active versions are mostly used for extracting air. They can, however, be used for supplying air, but without any regulation of air flow. Servicing Remove the perforated diffuser plate, and then turn the movable hat left a few times, in order to remove it (not possible with non-active versions). If you want to remove the diffuser, you must first remove the perforated diffuser plate, then remove the hat, remove the motor by loosening the actuator screws, and then loosen the screws which are holding the diffuser. Clean the parts with a dry cloth. However, if you have removed the actuator, you can also use a damp cloth. RAL 90 M Actuator Type BELIMO LHA-MP Quick selection table for non active version O- 0 R O- 0 R O- R Stroke (adjustable in steps of mm) Up to max. mm Quick selection table for active (VAV) version O- 0 B O- 0 B O- B, Variable swirl diffusers Variable swirl diffusers Operating range C V 0 mm l/s m³/h L WA,, 7,,, Δp ST 8 9 L 0,,9,,7,,, L WA,,7,,, 7,, Δp ST 7 8 L 0,,9,,,9,,7, L WA,,, 8 Δp ST L 0,7,,,9,,8, l/s m³/h L WA,,9,7, 7, 0,, Δp ST 9 L 0 0,,,,9,,7 L WA,8,,,,, 9,8, Δp ST 8 9 L 0 0, 0,9,,,7,, L WA,8,,9, 8,8,7 Δp ST 9 L 0 0,7 0,9,,,,,7 VENTILATING GRILLES, VENTILATING VALVES CIRCULAR IFFUSERS, SQUARE IFFUSERS SWIRL IFFUSERS, VARIABLE SWIRL IFFUSERS SLOT IFFUSERS, ROUN UCT IFFUSERS AIR ISPLACEMENT UNITS SUPPLY AIR NOZZLES EXTERNAL ELEMENTS AIR FLOW CONTROL UNITS SOUN ATTENUATORS, SOUN ATTENUATING LOUVRES

63 Variable swirl diffusers imensions without plenum box with plenum box φ7 φ φd φ 80 ~ 8 h ~ 0 H φd φ φ Size Ф Фd Ф H h 0 8,7 9, , 99, 8, 9, 9

64 Variable swirl diffusers Pressure drop, throw pattern and sound data a) Active (VAV) version Size 0 Size 0 Size Δ ps (Pa) Pressure drop L 0, (m) 0 - L WA (db(a)) S Air flow Q (m /h) Air flow Q (m /h) Air flow Q (m /h)., Δ ps (Pa) Pressure drop L 0, (m) - S +, 7 b) Non active version Size 0 Size 0 Size 0 L WA (db(a)) Δ ps (Pa) Pressure drop L 0, (m) - S + 0 L WA (db(a)), 7 VENTILATING GRILLES, VENTILATING VALVES CIRCULAR IFFUSERS, SQUARE IFFUSERS SWIRL IFFUSERS, VARIABLE SWIRL IFFUSERS SLOT IFFUSERS, ROUN UCT IFFUSERS Δ ps (Pa) Pressure drop Δ ps (Pa) Pressure drop Air flow Q (m /h) Air flow Q (m /h) Air flow Q (m /h) 0 Δ ps (Pa) Pressure drop AIR ISPLACEMENT UNITS SUPPLY AIR NOZZLES L 0, (m) 0,, L 0, (m) 0,,, L 0, (m) 0,,, EXTERNAL ELEMENTS SOUN ATTENUATORS, SOUN ATTENUATING LOUVRES AIR FLOW CONTROL UNITS

65 Variable swirl diffusers Installation O- shall be installed with plenum, and the spigot should at least upstream of the plenum, in order to ensure a reliable air flow measuring. Safety wire for the bottom plate comes as standard equipment, and prevents eventual falling of the plate in critical situations. O- is electrically connected to a ready- -to-connect cable plug. The cable can be removed from the actuator by a special Belimo system. Check that the actuator settings correspond to the factory settings the direction switch must be set in position 0. When the supply voltage is switched on for the first time, i.e. at commissioning or after pressing the» gear disengagement«switch, the actuator travels to the home position (see table below). Commissioning Make sure that the direction setting button on the actuator is in position 0. Then, fully open the hat (via the V input signal or by hand pressing the clutch). Check the duct pressure is at the intended level. If not, check the system (fan, damper). Adjustment The diffuser air flow rate is measured and adjusted using a damper in the spigot of the plenum. Air flow rate is calculated using the pressure difference and K factor. Calculation q v= K * p m q v calculated air flow rate (l/s) K factor from the table (on measuring connection too; depends on mounting) p m measured pressure difference (Pa) Ordering key O-//L/B/K K Plenum B actuator version R manual version P Perforated bottom plate L Non-perforated bottom plate Wiring diagram Pos. direction of stroke switch Electrical data Nominal voltage Power supply range Power consumption Connection LHA-MP Y = 0 V Home position extended Y = 0 V retracted Y U AC V / C V C 0... V MP Notes: - Connection via safety isolating transformer! - Other actuators can be connected in parallel. Please note the performance data! Note (power supply voltage): - A device that disconnects the pole conductors (minimum contact gap mm) is required for isolation from power supply. TECHNICAL ATA BELIMO LHA-MP In operation At rest For wire sizing AC V, /0 Hz / C V AC V / C. 8.8 V. nominal force. W VA Cable m, x 0.7 mm² Functional data Factory settings Actuating force Min. nominal voltage Control Control signal Y C 0 V, input impedance kω Operating range C V Position feedback (Measuring voltage U) C V, max. 0, ma Position accuracy ± % Manual override Gearing latch disengaged with pushbutton, detentable Running time s / mm Sound power level Max. db (A) at s running time Safety Protection class III Safety extra-low voltage egree of protection IP in any mounting position EMC low-voltage directive CE according to 89//EEC Ambient temperature range 0 + C Non-operating temperature +80 C Ambient humidity range 9 % r.h., non-condensating (to EN 070-) Maintenance Maintenance-free visible fixing non-visible fixing (duct installation) Other Weight g

66 Variable swirl diffusers Active VAV diffuser O-7 Application Supply function with varying volume flow (VAV) Radial jet type of supply air Horizontal air flow pattern Suitable for isothermal supply or cooling, up to ΔT = - K Motorized control of the free outlet area via the aerodynamically designed control damper in a % to % range. This ensures constant throw length at constant static pressure in duct for maintaining the ceiling effect. escription Lip-type rubber seal on spigot Flush-mounted diffuser Standard colour RAL 90, 0 % gloss Quick selection table Type O-7 size 0 Type O-7 size 0 Type O-7 size Q [l/s] [m³/h] 70 L WA [db (A)] 7 7 Δ pt [Pa] 9 L 0. [m] L min [m] < Q [l/s] [m³/h] 0 00 L WA [db (A)] 9 9 Δ pt [Pa] L 0. [m] L min [m] < Q [l/s] [m³/h] L WA [db (A)] 0 Δ pt [Pa] 0 9 L 0. [m] L min [m] * L WA, Δ pt, L 0., L min are given at % opened control damper St RAL 90 efinition of symbols L WA Δ pt L 0. L min Q A-weighted sound power level Total pressure drop calculated to normal conditions Isothermal throw length of supply air jet, when its core speed drops down to 0. m/s Minimum distance between two centrelines of diffuser, required for achieving air velocity jet below 0. m/s Air flow Condition for L min Room height H=.8 m Occupied zone height.8 m Room temperature C Supply temperature when cooling ΔT= - K VENTILATING GRILLES, VENTILATING VALVES CIRCULAR IFFUSERS, SQUARE IFFUSERS SWIRL IFFUSERS, VARIABLE SWIRL IFFUSERS SLOT IFFUSERS, ROUN UCT IFFUSERS SOUN ATTENUATORS, SOUN ATTENUATING LOUVRES AIR ISPLACEMENT UNITS SUPPLY AIR NOZZLES EXTERNAL ELEMENTS AIR FLOW CONTROL UNITS

67 Variable swirl diffusers imensions. Actuator BELIMO LHA-MP. Lip-type rubber seal. Sheet steel bottom plate. ispersion plate*. Control damper * Safety wire for the dispersion plate comes as standard equipment, and prevents eventual falling of the plate in critical situations. φd φ C x C c Bottom plate O-7//B O-7//B O-7//B O-7//B Ød C* c approx. weight mm mm mm kg * tolerances according to standard IN 78 T, middle tolerance class (m) ±0.8 mm Installation into ceiling ampa clip in with bevelled edge (version A and Z) ampa clip in with square edge (version A and Z) Standard ceiling 9x9 (version A and Z) Ecophon kant and Rockfon -XL (version A and Z) C * for dimension C look see table for bottom plate dimension

68 Variable swirl diffusers Pressure drop, sound level, throw length amper opening: % min. opened, % max. opened L 0. Isothermal throw length of supply air jet, when its core speed drops down to 0. m/s at % opened control damper (max. air flow). O-7 size 0 O-7 size 0 O-7 size 0 % Δpt (Pa) Lwa (db(a)) 0 % 0% 80% % L 0. Δpt (Pa) Lwa (db(a)) O-7 size 0 % 0 00 % 0% 80% % L 0. VENTILATING GRILLES, VENTILATING VALVES CIRCULAR IFFUSERS, SQUARE IFFUSERS SWIRL IFFUSERS, VARIABLE SWIRL IFFUSERS SLOT IFFUSERS, ROUN UCT IFFUSERS O-7 size Δpt (Pa) O-7 size Lwa (db(a)) % % 0% 80% % AIR ISPLACEMENT UNITS SUPPLY AIR NOZZLES L 0. Sound attenuation* [db] Type Octave [Hz] 0 k k k 8k O-7 size O-7 size O-7 size EXTERNAL ELEMENTS AIR FLOW CONTROL UNITS * Sound attenuation represents insertion losses; this means reduction in the level of sound power due to the inserted unit (swirl diffuser O-7/B). SOUN ATTENUATORS, SOUN ATTENUATING LOUVRES 7

69 Variable swirl diffusers O-7 with actuator BELIMO LHA-MP irection of stroke switch Position is set from factory and must be set on 0. When the supply voltage is switched on for the first time, i.e. at commissioning or after pressing the»gear disengagement«switch, the actuator travels to the home position showed in table (home position). Electrical installation Connection via safety isolating transformer! Other actuators can be connected in parallel. Please note the performance data! Note, main power supply voltage: a device that disconnects the pole conductors (minimum contact gap mm) is required for isolation from power supply. Adaptation of operating range Adjustment of the operating range and measuring signal U to match the mechanical stroke adjustment is set automatically whenever the supply voltage is switched on, manual triggered by pressing >>Adaption<< button or with the PC-tool. Home position Pos. direction of stroke switch Y = 0 V 0 Y = 0 V Electrical installation conventional operation Y U Home position extended retracted Control signal Measuring voltage Electrical data Nominal voltage Nominal voltage range Power consumption Connection In operation At rest For wire sizing Functional data Control signal Y Control Operating range Position feedback (Measuring voltage U) Running time Sound power level AC V, /0 Hz / C V AC V / C. 8.8 V. nominal force. W VA Cable m, x 0.7 mm² Factory settings C 0 V, input impedance kω C V C V, max. 0, ma s / mm Max. db (A) at s running time Safety Protection class III Safety extra-low voltage / UL Class Supply egree of protection IP in any mounting position NEMA, UL Enclosure Type EMC low-voltage directive CE according to 0/8/EC Ambient temperature range C Non-operating temperature C Ambient humidity range 9 % r.h., non-condensating LHA-MP Electrical installation Operation on the MP-Bus LHA-MP Y U Senzor MP Ordering key O 7 / / B Size 0, 0, B actuator version* R manual version air supply, ceiling type AMPA Clip-In with bevelled edge air supply, ceiling type AMPA Clip-In with square edge air supply, standard ceiling type 9x9 air supply, ceiling type Ecophon Kant and Rockfon -XL * varying volume flow version with BELIMO LHA-MP actuator 8

70 Variable swirl diffusers Variable diffuser K-8 Application Variable diffuser K-8 is designed for air supply in large rooms (sport halls, swimming pools, airports ), because of their large air handling capacity. Continuously adjustable blades (up to 90 ) in the diffuser plate allow the supply of both warm and cold air in different directions i.e. horizontal, or in swirling motion towards floor. escription Variable diffuser K-8 consists of plenum box made of galvanised sheet steel and diffuser plate. Frame and adjustable blades consist of aluminium sections anodised to natural aluminium colour. Volume control damper made of perforated sheet steel is mounted in entry spigot. Control blades are fastened together and can be adjusted from the central point. AI C VENTILATING GRILLES, VENTILATING VALVES CIRCULAR IFFUSERS, SQUARE IFFUSERS SWIRL IFFUSERS, VARIABLE SWIRL IFFUSERS SLOT IFFUSERS, ROUN UCT IFFUSERS Component parts and dimensions. Plenum box. Entry spigot. ispersing plate. Volume control damper. Square diffuser K-8 A x A 9 C x C h d H A x A d C x C H AIR ISPLACEMENT UNITS SUPPLY AIR NOZZLES Size A C H h H Фd A ef (m²) A ef efective discharge area (m²) EXTERNAL ELEMENTS SOUN ATTENUATORS, SOUN ATTENUATING LOUVRES AIR FLOW CONTROL UNITS 9

71 Variable swirl diffusers Blade control types K-8/R Manual control with a standard wrench K-8/B,B,B Regulation with actuator Additional equipment K-8/R/S/M/ + square plate Additional square plate which permits better ceiling effect by cooling. K-8/R/S/M/ + protective grid Additional protective grid shield against ball impact. 7 C C+0 Ordering key K-8 / R / S / M / I Size + square plate square plate protective grid Size I Thermal insulation (PE), thickness mm on the outside of the plenum box I9 Sound and thermal insulation (from - C to C) thickness 9 mm on the outside of the plenum box (the material is synthetic rubber-based) I9 Sound and thermal insulation (from - C to C) thickness 9 mm on the outside of the plenum box (the material is synthetic rubber-based) M Volume control damper in entry spigot S Side entry spigot V Vertical entry spigot R Manual control Actuator driven B Belimo LM A B Belimo LM A B Belimo LM A SR J Joventa AN.N J Joventa AN.N J Joventa MN.N 70

72 Variable swirl diffusers efinition of symbols Q (m³/h) Air flow x (m) Horizontal distance to the wall H (m) Room height H (m) istance from ceiling to occupied zone L (m) Throw distance (L=H+x) V L (m/s) Air velocity at the throw distance L Δt z (K) Temperate difference between the supply and room air Δt L (K) ifference between the core and room air temperature Δp t (Pa) Pressure drop L WA (db(a)) Sound power level V H (m/s) Air velocity at the H distance A, B (m) istance between diffusers by length and by width H L Q t z A,B V H t L Q tz x H L.8m V L t L VENTILATING GRILLES, VENTILATING VALVES CIRCULAR IFFUSERS, SQUARE IFFUSERS SWIRL IFFUSERS, VARIABLE SWIRL IFFUSERS Pressure drops and sound power level 80 0 Size 0 LWA (db(a)) Q (m /h) 80 0 Size LWA (db(a)) Q (m /h) SLOT IFFUSERS, ROUN UCT IFFUSERS AIR ISPLACEMENT UNITS SUPPLY AIR NOZZLES Size 00 Size L WA (db(a)) Q (m /h) Size 0 0 L WA (db(a)) Q (m /h) EXTERNAL ELEMENTS AIR FLOW CONTROL UNITS SOUN ATTENUATORS, SOUN ATTENUATING LOUVRES 7

73 Variable swirl diffusers Maximum throw distances Max. throw distance at the angle of Max. throw distance at the angle of 7 Lmax (m) 7 Δt z = ±OK + K + K + K Lmax (m) 7 ±OK Δt z = + K + K + K Size Size Q (m /h) Q (m /h) Max. throw distance at the angle of 0 Max. throw distance at the angle of 90 Lmax (m) 7 ±OK Δt z = + K + K + K Lmax (m) 7 ±OK Δt z = + K + K + K Size Size Q (m /h) Q (m /h) Air velocity in occupied zone at the distance A (with ceiling effect) H = m Size H = m Size 00 VH = m/s VH = m/s Q (m /h) Q (m /h) m 8 m A A 7

74 Variable swirl diffusers Air velocity in occupied zone at the distance A (with ceiling effect) H = m Size 77 H = m Size VENTILATING GRILLES, VENTILATING VALVES V H = m/s Q (m /h) 00 V H = m/s Q (m /h) CIRCULAR IFFUSERS, SQUARE IFFUSERS m 8 m A (m) A (m) Air velocity at the wall with respect to distance L (with ceiling effect) A= m Size A= m Size 00 SWIRL IFFUSERS, VARIABLE SWIRL IFFUSERS SLOT IFFUSERS, ROUN UCT IFFUSERS v L (m/s) Δ Δ t L / t Z Q (m /h) t L / t Z Δ Δ v L (m/s) Δ Δ t L / t Z Q (m /h) t L / t Z Δ Δ AIR ISPLACEMENT UNITS SUPPLY AIR NOZZLES A= m L Size 77 Q (m /h) A= m L Size EXTERNAL ELEMENTS 0.0 Δ Δ t L / t Z Q (m /h) 0. v L (m/s) t L / t Z Δ Δ v L (m/s) Δ Δ t L / t Z t L / t Z Δ Δ AIR FLOW CONTROL UNITS SOUN ATTENUATORS, SOUN ATTENUATING LOUVRES L (m) L (m) 7

75 Variable swirl diffusers Motor actuators In the variants of products with motor actuators, the motor actuators of the BELIMO or JOVENTA producer are used. Upon the request of the buyer, products can also be adapted to motor actuators of other producers. It can be chosen from motors of various powers connection voltage of V or V ON/OFF regulation or continuous regulation (SR) Type LM Type A Type SM Type MN Code Hidria Catalogue B J B J B J B J B J B J B7 J7 B8 J8 B9 J9 B J Engine BELIMO, JOVENTA LM A AN.N LM A AN.N LM A SR MN. NM A AS NM A AS NM A SR MS. SM A A SM A A SM A SR M. SM A SR M. Power in Nm Motor is appropriate for the following products: iffusers: O-V, K-8 Shutt-off dampers ZL-; Throttling dampers L in L- iffusers: O-V, K-8 Shutt-off dampers ZL-; Throttling dampers L in L- iffusers: O-V, K-8 Shutt-off dampers ZL-; Throttling dampers L in L- 8 Nozzles; diffusers in the case when larger power is required; O-V size 0 8 Nozzles; diffusers in the case when larger power is required; O-V size 0 8 Nozzles; diffusers in the case when larger power is required; O-V size 0 O-V size 800 O-V size 800 O-V size 800 O-V size 800 The right for technical changes reserved. 7