Ventilating grilles, Ventilating valves

Transcription

1 01 Ventilating grilles Grilles with thermostatic regulation Special grilles Ventilating valves Staircase swirl diffusers

2 SLOT DIFFUSERS, ROUND DUCT DIFFUSERS SWIRL DIFFUSERS, VARIABLE SWIRL DIFFUSERS CIRCULAR DIFFUSERS, SQUARE DIFFUSERS VENTILATING GRILLES, VENTILATING VALVES Ventilating grilles, Ventilating valves Ventilating grilles are designed for all types of low-pressureair-conditioning-, heating- and ventilation systems with built in air flow- and throw distance control as well as regulation of discharge angle. They can be used for both, supply air and exhaust air applications. Ventilating valves are designed to extract air from sanitary rooms and other premises and can be also used in low pressure air-conditioning systems with air flow control. AIR DISPLACEMENT UNITS SUPPLY AIR NOZZLES SOUND ATTENUATORS, SOUND ATTENUATING LOUVRES EXTERNAL ELEMENTS AIR FLOW CONTROL UNITS

3 Overview Steel ventilating grilles, stainless steel grilles JR- JR- JR-7 JR-8 RR-1 RR- RR- RR-6 JRU- JRU-6 Duct grilles for circular and rectangular ducts Grilles with thermostatic regulation (steel) SK-2 SK- SK- SK-9 JR-8/TR Ceiling grilles Special grilles (Grease traps, Filter grilles, Linear grilles) SR-1 SR-2 SR- SR- LM-1 LM-2 /PF /T Ventilating valves and staircase swirl diffusers PV-1N PV-2N PV- STD-1 STD-2 6

4 Content SUPPLY AIR NOZZLES AIR DISPLACEMENT UNITS SLOT DIFFUSERS, ROUND DUCT DIFFUSERS SWIRL DIFFUSERS, VARIABLE SWIRL DIFFUSERS VENTILATING GRILLES, VENTILATING VALVES CIRCULAR DIFFUSERS, SQUARE DIFFUSERS 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 F EU... Element allows regulation by electric motor (Belimo electric motors). Element is intended for air filtration. 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 6 to 1 m. Element is suitable for the supply of warm air (heating). CD INOX 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 ADE program. The element is made of stainless sheet steel AISI 0. SOUND ATTENUATORS, SOUND ATTENUATING LOUVRES 7

5 Ventilating grilles Steel grilles Visible or hidden screw installation Steel sheet powder painted in standard RAL 90 colour JR-, JRP- Individually adjustable horizontal blades JRP-: galvanised steel sheet RAL 90 H/B CD St JR-, JRP- Individually adjustable vertical blades JRP-: galvanised steel sheet RAL 90 H/B CD St JR-7, JRP-7 Individually adjustable horizontal and vertical blades 6 JRP-7: galvanised steel sheet RAL 90 H/B CD St JR-8, JRP-8 Individually adjustable horizontal and vertical blades 6 JRP-8: galvanised steel sheet RAL 90 H/B CD St Ordering key JR-1/2-F B x H F Registers F, S, T V Visible screw installation 2 Hidden screw installation V2 Visible screw installation + installation frame Spring 1 Grille type JR-, JR-, JR-7, JR-8 JR Steel grille JRP Galvanised steel grille 12

6 Ventilating grilles Stainless steel grilles RR-1, RR-, RR-, RR-6 Visible or hidden screw installation Flat framer Stainless steel AISI 0 (BA polished, high gloss) RR-1 Individually adjustable vertical and horizontal blades RR- Fixed horizontal blades RR- Individually adjustable horizontal blades RR-6 Individually adjustable vertical blades INOX H/B H/B H/B H/B H/B H/B 6 VENTILATING GRILLES, VENTILATING VALVES CIRCULAR DIFFUSERS, SQUARE DIFFUSERS SWIRL DIFFUSERS, VARIABLE SWIRL DIFFUSERS SLOT DIFFUSERS, ROUND DUCT DIFFUSERS AIR DISPLACEMENT UNITS SUPPLY AIR NOZZLES EXTERNAL ELEMENTS Ordering key RR-1/V F F Register classic FI Register INOX (frame INOX, aluminium blades) C Register INOX (for RR- only) C1 Register INOX (for RR-6 only) V Visible screw installation screw INOX 2 Installation frame and locks galvanised (for RR-1,, 6 only) 2I Installation frame INOX and galvanised locks (for RR-1,, 6 only) V2 Visible screw installation + installation frame galvanised V2I Visible screw installation + installation frame INOX grille type RR-1, RR-, RR-, RR-6 AIR FLOW CONTROL UNITS SOUND ATTENUATORS, SOUND ATTENUATING LOUVRES 1

7 Ventilating grilles Grille standard dimensions and cross-sections (m²) for JR-, JR-, RR-, RR-6: B/H B/H Grille standard dimensions and cross-sections (m²) for JR-7, JR-8, RR-1: B/H B/H Standard dimensions for RR-: B/H

8 Ventilating grilles Curved steel grilles Application Ventilating curved grilles are designed for all types of low-pressure- air-conditioning, heating and ventilation systems with built in air flow and throw distance control. JRU- 6 also has built-in regulation of discharge angle. They can be used for both, supply air and exhaust air applications. Description Steel curved grilles are made of sheet steel and powder-coated in RAL 90. Upon customers request they can be made of galvanised or stainless steel or painted in any other RAL colour. Both types are available in concave or convex version. Standard dimensions St RAL H/B B R VENTILATING GRILLES, VENTILATING VALVES CIRCULAR DIFFUSERS, SQUARE DIFFUSERS SWIRL DIFFUSERS, VARIABLE SWIRL DIFFUSERS B/H SLOT DIFFUSERS, ROUND DUCT DIFFUSERS R AIR DISPLACEMENT UNITS JRU- Individually adjustable horizontal curved blades Frame (curve R) Visible screw installation JRU B H R min (mm) H/B B SUPPLY AIR NOZZLES JRU-6 Individually adjustable vertical curved blades Frame (curve R) Visible screw installation EXTERNAL ELEMENTS JRU 6 B H R min (mm) Ordering key AIR FLOW CONTROL UNITS JRU /V/KK B x H x R KK Convex KO Concave Visible screw installation Grille type SOUND ATTENUATORS, SOUND ATTENUATING LOUVRES 1

9 Ventilating grilles Steel duct grilles SK-2, SK-, SK-, SK-9 For circular ducts Visible screw installation SKP-2, SKP-, SKP-, SKP-9: galvanised steel type St RAL 90 CD SK-2 Individually adjustable horizontal and vertical blades H-1/B-1 H1/B1 H-1/B-1 H1/B1 H-1/B-1 H1/B1 H-1/B-1 H1/B1 SK- Individually adjustable vertical blades SK- Individually adjustable horizontal blades SK-9 Individually adjustable horizontal and vertical blades 16

10 Ventilating grilles Standard dimensions B/H a H H1/B1 H-1/B-1 D B1 = B-27 H1 = H-27 VENTILATING GRILLES, VENTILATING VALVES CIRCULAR DIFFUSERS, SQUARE DIFFUSERS Dimensions H H a diameter D SWIRL DIFFUSERS, VARIABLE SWIRL DIFFUSERS Ordering key SK-2 / V-F B x H F Registers (see page 27) V Visible screw installation Grille type SLOT DIFFUSERS, ROUND DUCT DIFFUSERS AIR DISPLACEMENT UNITS SK Steel grilles SKP Galvanised steel grilles SOUND ATTENUATORS, SOUND ATTENUATING LOUVRES AIR FLOW CONTROL UNITS SUPPLY AIR NOZZLES EXTERNAL ELEMENTS 17

11 Ventilating grilles Steel ceiling grilles SR-1, SR-2, SR-, SR- Fixed blades Visible screw installation Foamy sealing strip around the frame Ceiling installation St RAL 90 H/B H-16/B SR-1 One-way air supply 1 H1 B1 SR-2 Two-way air supply 2 H1 2 B1 SR- Three-way air supply H1 B1 SR- Four-way air supply H1 B1 18

12 Ventilating grilles Standard dimensions B/H VENTILATING GRILLES, VENTILATING VALVES CIRCULAR DIFFUSERS, SQUARE DIFFUSERS SWIRL DIFFUSERS, VARIABLE SWIRL DIFFUSERS Ordering key SR-1/V-F2 B x H F2 Registers (see page 27) V Visible screw installation V2 Visible screw installation+installation frame Grille type SR Steel grilles SRP Galvanised steel grilles SLOT DIFFUSERS, ROUND DUCT DIFFUSERS SOUND ATTENUATORS, SOUND ATTENUATING LOUVRES AIR FLOW CONTROL UNITS AIR DISPLACEMENT UNITS EXTERNAL ELEMENTS SUPPLY AIR NOZZLES 19

13 Ventilating grilles Ventilating grilles installation Wall installation with built-in frame and hidden fixing (lock) B1 = B-27 H1 = H-27 H1/B1 27 B2 = B-1 H2 = H-1 The list of grilles and their designation: RR-1/2, RR-/2, RR-/2 and RR-6/2 7 H2/B2 H/B Wall installation with built-in frame and visible fixing B1 = B-27 H1 = H-27 B2 = B-1 H2 = H-1 The list of grilles and their designation: RR-1/V2, RR-/V2, RR-/V2, RR-6/V2, SR-(1-)/V2 H1/B H2/B2 H/B Installation on wall or duct with screw-type installation frame and hidden fixing (lock) B1 = B-27 H1 = H-27 B2 = B-1 H2 = H-1 The list of grilles and their designation: RR-1/2, RR-/2, RR-/2 in RR-6/2 H1/B H2/B2 H/B Installation on wall or duct with screw-type installation frame and visible fixing B1 = B-27 H1 = H-27 B2 = B-1 H2 = H-1 The list of grilles and their designation: RR-1/V2, RR-/V2, RR-/V2, RR-6/V2, SR-(1-)/V2 H1/B H2/B2 H/B 22

14 Ventilating grilles Direct installation in wall or duct via the visible fixing B1 = B-27 H1 = H-27 The list of grilles and their designation: RR-1/V, RR-/V, RR-/V, RR-6/V H1/B VENTILATING GRILLES, VENTILATING VALVES H-/B- SWIRL DIFFUSERS, VARIABLE SWIRL DIFFUSERS CIRCULAR DIFFUSERS, SQUARE DIFFUSERS Installation of SK-2,,,9 grilles directly in the round duct with visible screw-fixing The list of grilles and their designation: SK-2, SK-, SK-, SK-9 B-1 H-1 H-1/B-1 H1/B1 R SLOT DIFFUSERS, ROUND DUCT DIFFUSERS AIR DISPLACEMENT UNITS Mounting of grilles without installation frame Visible screw installation / V B1 = B-27 H1 = H-27 JR-, JR- h = mm JR-7, JR-8 h = 6 mm Marking: JR-/V, JR-/V, JR-7/V, JR-8/V Mounting of grilles with installation frame h H1/B1 H-/B- 27 SUPPLY AIR NOZZLES EXTERNAL ELEMENTS The installation frame may be mortar-mounted (in concrete or brick walls) or fixed with screws (walls, ceilings, ducts, ). AIR FLOW CONTROL UNITS SOUND ATTENUATORS, SOUND ATTENUATING LOUVRES 2

15 Ventilating grilles Hidden screw fixing / 2 (lock) B1 = B-27 H1 = H-27 JR-, JR- h = mm JR-7, JR-8 h = 6 mm Marking: JR-/2, JR-/2, JR-7/2, JR-8/2 h H1/B1 27 H/B Visible screw fixing + installation frame / V2 B1 = B-27 H1 = H-27 H1/B1 27 JR-, JR- h = mm JR-7, JR-8 h = 6 mm h Marking: JR-/V2, JR-/ V2, JR-7/V2, JR-8/V2 H/B Hidden fixing / (spring) Warning: only for wall installation B1 = B-27 H1 = H-27 JR-, JR- h = mm JR-7, JR-8 h = 6 mm Marking: JR-/, JR-/, JR-7/, JR-8/ H/B h 27 H1/B1 H/B 27 H1/B1 2

16 Ventilating grilles Registers When adjusting the system, desired operating conditions are obtained by the means of ventilation elements control. Registers are installed for additional air volume control, thus influencing air velocity and throw distance as well. All types of registers, except type of register F, are made of sheet steel and corrosion protected with dipcoat processing in blackwater soluble colour. Upon customer s request registers can be made of galvanised sheet steel and coloured in any colour. Typ of register F is made of plastics. VENTILATING GRILLES, VENTILATING VALVES CIRCULAR DIFFUSERS, SQUARE DIFFUSERS F Register has wide counter-directional blades which can be moved with screw-driver via the gear wheel. It is used to control the air flow volume.blades are made of plastics. S Register has fixed deflector and slider which opens and closes the slots. Due to inclined deflection, air volume damper S is particularly useful for longer grilles, because air flow is evenly distributed throughout the grille. T Register has fixed deflector and slider which opens and closes the slots. It isused to control and deflect the air flow from the duct. PP Perforated sheet steel ( %) is used to split the air jet. Unfavourable is increased noise max SWIRL DIFFUSERS, VARIABLE SWIRL DIFFUSERS SLOT DIFFUSERS, ROUND DUCT DIFFUSERS SOUND ATTENUATORS, SOUND ATTENUATING LOUVRES AIR DISPLACEMENT UNITS SUPPLY AIR NOZZLES EXTERNAL ELEMENTS AIR FLOW CONTROL UNITS 2

17 Ventilating grilles Set-up of different registers Register F Register T 26

18 Ventilating grilles Ventilating grilles/registers combinations Perforated sheet steel Grille F F2 S T PP JR- JR- JR-7 JR-8 RR-1 o o RR- o RR- o o RR-6 o o SK-2 o o SK- o o SK- o o SK-9 o o SR-1 SR-2 SR- SR- o standard combination possible combination VENTILATING GRILLES, VENTILATING VALVES CIRCULAR DIFFUSERS, SQUARE DIFFUSERS EXTERNAL ELEMENTS SUPPLY AIR NOZZLES SWIRL DIFFUSERS, VARIABLE SWIRL DIFFUSERS SLOT DIFFUSERS, ROUND DUCT DIFFUSERS AIR DISPLACEMENT UNITS ASR-1 ASR-2 ASR- ASR- SR- o o o SR-6 o o o SR-7 o o SR-8 o o AIR FLOW CONTROL UNITS SOUND ATTENUATORS, SOUND ATTENUATING LOUVRES 27

19 Technical data Technical data Effective discharge area A ef (m²) AR-6, 7 RR- RR-1 SK- SK-2 B H AR- AR- RR- AR-8, 9 SK- RR-6 ASK-2 ASK- ASK- SK Discharge or inlet air flow volume is determined via air velocity measuring at the effective area with horizontally positioned blades. Use the below formula to calculate air flow volume Q = V ef x A ef x 600 (m³/h) V ef (m/s) A ef (m²) Effective jet velocity Effective area 28

20 Technical data VENTILATING GRILLES, VENTILATING VALVES F F F F F B H SR-1 SR-2 SR- SR-, SR F F F F F B H SR- SR-6 SR-7,8 SR-7 SR CIRCULAR DIFFUSERS, SQUARE DIFFUSERS SWIRL DIFFUSERS, VARIABLE SWIRL DIFFUSERS SLOT DIFFUSERS, ROUND DUCT DIFFUSERS AIR DISPLACEMENT UNITS SUPPLY AIR NOZZLES EXTERNAL ELEMENTS Calculation of A ef SR-1 A ef = SR-2 A ef = 2 x SR- A ef =2x + SR- A ef =2x +2x SOUND ATTENUATORS, SOUND ATTENUATING LOUVRES AIR FLOW CONTROL UNITS 29

21 Technical data Ventilating grilles JR-,, 7, 8; RR-1,,, 6; SK-2,,, 9 without ceiling effect (distance from ceiling 0.8 m) Chart for determining the size, induction and temperature of the air flow valid for B/H 12 fully opened blades Effective discharge air velocity v ef (m/s) Induction i Width B (mm) Height H (mm) Air flow Q (m /h) Temperature factor t t z L Air jet velocity v L (m/s) Throw distance L (m) 1. Air jet width b 0.2(m) Definition of Symbols Q 0.2 b v (m/s) L L t ( C) L v = 0.2 m/s 0.8m Q (m /h) t ( C) Z Q (m³/h) L (m) V ef (m/s) V L (m/s) Air flow Throw distance Effective discharge air velocity Max. air velocity at the throw distance L 0.2 L A Q Occupied zone L Δt z (K) Δt L (K) i b 0.2 (m) Temperature difference between supply and room air Temperature difference between air jet and room temperature Induction rate = total airstream volume flow / volume flow at diffuser discharge Width of air jet is measured at a distance from ceiling where air flow velocity 0.2 m/s 0

22 Technical data Ventilating grilles JR-,, 7, 8 without ceiling effect (distance from ceiling 0.8 m) Chart for determining the size, induction and temperature of the air flow valid for B/H 12 fully opened blades Effective discharge air velocity v ef (m/s) Induction i VENTILATING GRILLES, VENTILATING VALVES CIRCULAR DIFFUSERS, SQUARE DIFFUSERS SWIRL DIFFUSERS, VARIABLE SWIRL DIFFUSERS SLOT DIFFUSERS, ROUND DUCT DIFFUSERS Width B (mm) Height H (mm) Air flow Q (m /h) Temperature factor t L t z AIR DISPLACEMENT UNITS Air jet width b 0.2(m) Air jet velocity v L (m/s) Throw distance L (m) Throw distance L (m) SUPPLY AIR NOZZLES SOUND ATTENUATORS, SOUND ATTENUATING LOUVRES EXTERNAL ELEMENTS AIR FLOW CONTROL UNITS 1

23 Technical data Ventilating grilles JR-,, 7, 8; RR-1,,, 6; SK-2,,, 9 without ceiling effect (distance from ceiling 0.8 m) Table with correcting factors for horizontal air jet deflection: β α Blade adjusting angle β 90 Air jet spread angle α 60 Air flow velocity V L V L diag. x 0.7 x 0. Temperature factor Δt L/Δt Z (Δt L/ Δt Z diag.) x 0.7 x 0. Induction i i diag. x 1. x 2.0 Air jet drop y y diag. x 1. x 2.0 Distance between grilles A 0.2 L 0. L Chart for determining air jet deflection: Effective outlet area A (m 2 ef ) v (m/s) ef A (m ) ef t ( C) z heating L (m) v (m/s) ef y 6 2 L cooling y y= x t z t z diag. Air jet drop/rise y/ t (m/ C) z Example Given: Air flow: Q = 60 m³/h, L = m Air flow velocity: VL = 0. m/s Temperature difference: Δt Z = C Solution: Use the chart, distance from ceiling 0.8 m and select the grille type AR-1 size B = 2, H = 12 Effective outlet air velocity V ef =. m/s Temperature factor Δt L/Δt Z = 0.06 Temperature difference Δt L = 0.06 x = 0.2 C Induction i = 2 Width of the air jet b 0.2 = 1.0 m Min. distance between grilles A = 2 m 2

24 Technical data Ventilating grilles JR-,, 7, 8; RR-1,,, 6 with ceiling effect (distance from ceiling 0. m) Chart for determining the size, induction and temperature of the air flow valid for B/H 12 fully opened blades Effective discharge air velocity v ef (m/s) Induction i VENTILATING GRILLES, VENTILATING VALVES CIRCULAR DIFFUSERS, SQUARE DIFFUSERS SWIRL DIFFUSERS, VARIABLE SWIRL DIFFUSERS Width B (mm) Height H (mm) Air flow Q (m /h) Temperature factor t L tz SLOT DIFFUSERS, ROUND DUCT DIFFUSERS AIR DISPLACEMENT UNITS Air jet velocity v L (m/s) Air jet width b 0.2 (m) Throw distance L (m) Throw distance L (m) SUPPLY AIR NOZZLES EXTERNAL ELEMENTS Definition of symbols Q A 0.1 L Q b 0.2 Occupied zone v (m/s) L L t ( C) L v = 0.2 m/s L 0.m Q (m /h) t ( C) Z Q (m³/h) L (m) V ef (m/s) V L (m/s) Δt z (K) Δt L (K) i b 0.2 (m) Air flow Throw distance Effective discharge air velocity Max. air velocity at the throw distance L Temperature difference between supply and room air Temperature difference between air jet and room temperature Induction rate = total airstream volume flow / volume flow at diffuser discharge Width of air jet is measured at a distance from ceiling where air flow velocity 0.2 m/s AIR FLOW CONTROL UNITS SOUND ATTENUATORS, SOUND ATTENUATING LOUVRES

25 Technical data Ventilating grilles JR-,, 7, 8; RR-1,,, 6 with ceiling effect (distance from ceiling 0. m) Chart for determining the size, induction and temperature of the air flow valid for B/H 12 fully opened blades Effective discharge air velocity v ef (m/s) Induction i Width B (mm) Height H (mm) Air flow Q (m /h) Temperature factor t L t z Air jet velocity v L (m/s) Throw distance L (m) 1 1. Air jet width b 0.2(m) Throw distance L (m) 0.

26 Technical data Table with correcting factors for horizontal air jet deflection β α Blade adjusting angle β 90 Air jet spread angle α 60 Air flow velocity V L V L diag. x 0.7 x 0. Temperature factor Δt L/Δt Z (Δt L/ Δt Z diag.) x 0.7 x 0. Induction i i diag. x 1. x 2.0 Air jet drop y y diag. x 1. x 2.0 Distance between grilles A 0.2 L 0. L VENTILATING GRILLES, VENTILATING VALVES CIRCULAR DIFFUSERS, SQUARE DIFFUSERS Chart for determining air jet deflection 1 SWIRL DIFFUSERS, VARIABLE SWIRL DIFFUSERS 2. Example Given: Air flow: Q = 60 m³/h, L = m Air flow velocity: V L = 0. m/s Temperature difference: Δt Z = C SLOT DIFFUSERS, ROUND DUCT DIFFUSERS Max. temperature difference by cooling t z ( C) ef v (m/s) Solution: Use the chart, distance from ceiling 0. m and select the grille type JR- size B = 62, H = 12 Effective outlet air velocity V ef = 2.8 m/s Temperature factor Δt L/Δt Z = 0.1 Temperature difference Δt L = 0.1 x = 0.6 C Induction i = 1 Width of the air jet b 0.2 = 1.0 m Min. distance between grilles A = 1. m AIR DISPLACEMENT UNITS SUPPLY AIR NOZZLES 2 Effective outlet area A ef (m ) EXTERNAL ELEMENTS SOUND ATTENUATORS, SOUND ATTENUATING LOUVRES AIR FLOW CONTROL UNITS

27 Technical data Technical data for ventilating grilles Pressure drop and sound power level diagram for grilles JR-,, 7, 8, RR-1,,, 6 with volume control damper F Fully opened blades Opened 0 2% 0% 0% Pressure drop in duct pcel (Pa) N R WA L (db(a)) Effective air veloctiy v ef (m/s) Regulation set-up p cel Table of correction factors for acoustic data A ef (m²) Correction (db(a)) N R Definition of symbols A ef Δp cel (Pa) L WA (db(a)) N R Effective outlet area Pressure drop Sound power level Max. value acc. to ISO vef Room sound attenuation diagram The following data are necessary to calculate the volume Q : 1. Normal rooms Q = Q 2. Rooms with highly reflective walls Q = 0.Q. Rooms with absorption walls Q = 2Q Room attenuation (db(a)) Volume Q (m) Definition of symbols Q (m³) Calculated volume, depending on room reflectance Q (m³) Actual room volume Distance from ventilating element (m) 6

28 Technical data Technical data for extracting grilles Presure drop and sound power level for grilles JR-,, 7, 8 RR-1,,, 6 with volume control damper F Fully opened blades Pressure drop in duct pcel (Pa) N R WA L (db(a)) Effective air veloctiy v ef (m/s) Opened 2% 0% 0% Regulation set-up e Regulation set-up v ef Table of correction factors for acoustic data p cel A ef (m²) Correction (db(a)) N R Definition of symbols VENTILATING GRILLES, VENTILATING VALVES CIRCULAR DIFFUSERS, SQUARE DIFFUSERS SWIRL DIFFUSERS, VARIABLE SWIRL DIFFUSERS SLOT DIFFUSERS, ROUND DUCT DIFFUSERS AIR DISPLACEMENT UNITS SUPPLY AIR NOZZLES EXTERNAL ELEMENTS AIR FLOW CONTROL UNITS 6 Effective air veloctiy v ef (m/s) Δp cel (Pa) L WA (db(a)) N R Pressure drop Sound power level Max. value acc. to ISO SOUND ATTENUATORS, SOUND ATTENUATING LOUVRES 7

29 Technical data Effective supply air velocity diagram Effective outlet area A ef (m/s) Example Effective intel air velocity vef (m/s) 7 6 Q = 00 m³/h A ef = 0.0 m³ (from the Effective area table) As follows from the diagram. V ef =. m/s Air flow volume Q (m/h) Room sound attenuation diagram The following data are necessary to calculate the volume Q : 1. Normal rooms Q = Q 2. Rooms with highly reflective walls Q = 0.Q. Rooms with absorption walls Q = 2Q Room attenuation (db(a)) Volume Q (m) Definition of symbols Q (m³) Calculated volume, depending on room reflectance Q (m³) Actual room volume Distance from ventilating element (m) 8

30 Technical data Steel ceiling grilles SR-1, SR-2, SR-, SR- Chart for determing of effective outlet area, temperature and air flow induction VENTILATING GRILLES, VENTILATING VALVES A ef (m2 ) Effective discharge air velocity v (m/s) 2 1. ef Induction i 1 CIRCULAR DIFFUSERS, SQUARE DIFFUSERS SWIRL DIFFUSERS, VARIABLE SWIRL DIFFUSERS Air flow Q (m /h) 0. Temperature factor 0.2 t z t L SLOT DIFFUSERS, ROUND DUCT DIFFUSERS AIR DISPLACEMENT UNITS Air jet velocity v (m/s) L 1 Throw distance L (m) SUPPLY AIR NOZZLES 7 Throw distance L (m) EXTERNAL ELEMENTS E v L(m/s) t L( C) L=C+E C v L(m/s) t L( C) v L=0.2m/s L(m) Q(m /h) t Z ( C) Izračun Calculation delnih of količin partial zraka: air flows SR-1, SR- SR-2, SR-6 Q1 = Qcel Q 2 = Qcel SR- Q = Qcel x F Q = Qcel x F 2F + F 2F + F SR- SR-7 SR-8 2 Q = Qcel x F Q = Qcel x F 2(F + F) 2(F + F) Q = Qcel x F Q = Qcel x F 2(F + F) 2(F + F) Q = Qcel x F Q = Qcel x F 2(F + F) 2(F + F) Definition of symbols Q (m³/h) Q cel(m³/h) A ef (m²) For every discharge field F1 F Is to be divided among every discharge field For particular discharge field F1 F according to table of standard dimensions AIR FLOW CONTROL UNITS SOUND ATTENUATORS, SOUND ATTENUATING LOUVRES 1

31 Technical data The data in diagram is valid for ceiling grilles SR-1, SR-2 SR- F value only, SR- F, value only, where The data in square ceiling diffusers diagram are valid for: SR- F value only, SR- F value only, SR- F value only, where H 1 B 2.1 H 1 B 2.1 When using diagram for square diffusers, partial air flows Q and Q as well as partial areas for particular discharge fields F or. F are to be multiplied by. Use the area of xf or xf (for correspondent sizes 1-8). Definition of symbols Q (m³/h) L (m) V L (m/s) V h (m/s) Δt L ( C) Δt z ( C) i b 0.2 (m) Air flow Throw distance:l /= C + E Max. air velocity at the throw distance L Vertical velocity at distance h from ceiling by combining two counterdirectional air jets Temperature difference between air jet and room temperature Temperature difference between supply and room air Induction rate = total airstream volume flow / volume flow at diffuser discharge Width of air jet is measured at a distance from ceiling where air flow velocity 0.2 m/s Pressure drop diagram: Valid for F 2 in F volume control dampers. 0 2% Opened 0% 0% Vertical velocity diagram Max. temperature quotient Δt h/δt z is determined with the basic diagram for temperature quotient, where: Pressure drop pcel (Pa) 0 0 R N = WA L (db(a)) Regulation set-up Distance from ceiling h (m) p cel Air jet velocity 0.8(m/s) Effective discharge air velocity v ef (m/s) Vertical velocity v h (m/s) L L v L h Example v (m/s) h t h( C) Given: Ceiling grille SR-/F2 size B = 1271 mm, H = 76 mm, Q cel = 107 m³/h. Effective areas of discharge fields according to table of standard dimensions: F = m², F = m² Calculation of partial air flows: 107 x Q = 2 x = 700 m³/h 107 x Q = 2 x = 7 m³/h As follows from the ceiling grilles diagram: L = 7.1 m, v L = 0. m/s, v ef = 2.8 m/s As follows from the square diffusers diagram: size, Q = x7 = 28 m³/h, L = 1. m, v L = 0. m/s, v ef = 2.8 m/s 2

32 Grilles with thermostatic regulation Grilles with thermostatic regulation VENTILATING GRILLES, VENTILATING VALVES CIRCULAR DIFFUSERS, SQUARE DIFFUSERS Steel grille with thermostatic regulation JR-8/TR The grille is intended for air supply. The first row of vertical blades can be set freely while the second row of horizontal blades is set automatically and adapted to the temperature of the supplied air. As long as the air temperature does not reach C the blades are directed at above the horizontal position. In the range between C and 0 C the blades are set automatically according to the characteristic of the thermostatic element. When the air temperature reaches or exceeds 0 C the blades are directed at below the horizontal position. St RAL 90 Depiction of blade angles at different temperatures of supplied air T < C SWIRL DIFFUSERS, VARIABLE SWIRL DIFFUSERS SLOT DIFFUSERS, ROUND DUCT DIFFUSERS AIR DISPLACEMENT UNITS Description JR-8/TR grille is made of steel sheet. Blades in the second row are made of aluminum anodized profile. The whole grill is powder painted in RAL 90 or in the colour requested by buyer. Diagram: blade angles depending on the temperature of supplied air T > 0 C T = -0 C SUPPLY AIR NOZZLES EXTERNAL ELEMENTS Blade angles ( ) Temperature ( C) AIR FLOW CONTROL UNITS SOUND ATTENUATORS, SOUND ATTENUATING LOUVRES

33 Grilles with thermostatic regulation Installation of grilles with screws on the frame h Visible screw installation / V B1 = B-27 H1 = H-27 JR-8/TR h = 6 mm Marking: JR-8/TR/V H-/B- H1/B1 27 Dimensions and clean cross sections in m²: B/H B1 B1+ H1 H1+ Ordering key JR-8 / TR / V S B x H S Register S V Visible screw installation TR Thermostat regulation JR-8 Grille type

34 Special grilles Special grilles VENTILATING GRILLES, VENTILATING VALVES Grease traps LM-1, LM-2 Application Grease traps are used to extract air from kitchens and rooms with a high level of greasy steam. A special grease filter reduces the soiling of air ducts and ventilators. Grease traps permit no air flow regulation. Housing with groove is made of sheet steel and coloured in black. Description Filter consists of frame and infill made of expanded sheet aluminium. Construction made of stainless steel is available on request. Filter is easy to dismantle and wash in hot lye or other wash solutions (detergents). LM-1 LM-1 grease trap is designed for wall mounting. Extracted grease accumulates in special groove. Installation a) Installation in solid wall via the built-in frame. Designation LM-1/2 28 St 27 H B1 27 Technical data Diagram shows the pressure drop at the cross section B1xH1. Recommended air velocity is between 1 m/s and 2 m/s. Diagram is valid for LM-1 and LM-2. A ef=000/(b1-28xh-12)x0 2(vm²) H/B H/B 0 Dimensions B B1 H H CIRCULAR DIFFUSERS, SQUARE DIFFUSERS SWIRL DIFFUSERS, VARIABLE SWIRL DIFFUSERS SLOT DIFFUSERS, ROUND DUCT DIFFUSERS AIR DISPLACEMENT UNITS SUPPLY AIR NOZZLES H1/B1 28 H-/B- b) Direct installation in sheet steel duct. Designation LM-1 Pressure drop pt (Pa) EXTERNAL ELEMENTS AIR FLOW CONTROL UNITS H1/B1 H-7/B- H/B 1 2 Effective discharge air velocity v ef (m/s) SOUND ATTENUATORS, SOUND ATTENUATING LOUVRES

35 Special grilles LM-2 Grase trap LM-2 is designed for ceiling installation. Extracted grease accumulates in special tube. Installations a) Installation in solid wall via the built-in frame. Designation LM-2/2 St RAL 90 H/B H-1/B-1 27 B1 27 Dimensions H+70/B+70 b) Installation in sheet steel duct. Designation LM-2/2 H-/B- 27 H1 27 H/B B B1 H H H+70/B+70 H/B 8 Ordering example Grease trap: LM-1 / 2 Size: B = 2 H = 22 Pcs: 6 6

36 Special grilles Filter grilles /PF Application Grilles with pre-filter are designed for application in rooms with special demands (computer centres, libraries, archives). Description Filter housing is designed to fit all sizes of ventilating grilles. It consists of galvanized sheet steel. Air volume is controlled by the means of F or T type air volume damper. Filter class G2 to F. Filter builds up the initial pressure of 0Pa by the air flow volume of 00 m³/h and air velocity V ef = 1. m/s (at the grille). In the course of time, when filter gets dirty, pressure drop is increased. F EU... St RAL 90 JR-,,7,8 RR-1,,,6 VENTILATING GRILLES, VENTILATING VALVES CIRCULAR DIFFUSERS, SQUARE DIFFUSERS SWIRL DIFFUSERS, VARIABLE SWIRL DIFFUSERS Filter replacement When replacing the filter, remove the grille and take out the filter infill. Replace used filter infill with new one of the same quality. Fasten the new infill in the housing and finally replace the grille. H- / B- H-1 / B-1 SLOT DIFFUSERS, ROUND DUCT DIFFUSERS Installation Filter housing can be built-in or screwed in the duct. Grill is mounted on the filter housing: Ordering example Ventilating grille: With pre-filter: JR-PF/G2/2 F Size: B = 82 H = 12 Filter quality: G2, G, G, F Pcs: 1 1. with screws on the frame 2. with locks (hidden installation) (JR) ( JR) PF/V PF/2 AIR DISPLACEMENT UNITS SUPPLY AIR NOZZLES SOUND ATTENUATORS, SOUND ATTENUATING LOUVRES AIR FLOW CONTROL UNITS EXTERNAL ELEMENTS 7

37 Special grilles Linear grilles T Application When there is a demand to assembly grilles in longer linear lines, linear grilles should be used. St RAL 90 Description Line is divided into approx. equal elements of 1. m. The elements are connected with special partition bars. Band grilles types JR-,. AR-6, AR-7 AR-6, AR-7 B- / H- B1/ B1/ B1/ Installation type example Visible screw connection with screws in the frame designation: JR-T/V Hidden installation with built-in frame and locks designation: JR-T/2 AR-8, AR-9 Regulation The same registers as for basic grilles. See table on the page 27. (B+)/ (B+)/ (B+)/ B / H AR-1, AR-1, JR-, JR- B- / H- B1/ B1/ B1/ Connection JR- Connection JR- Ordering key JR-T/2-F B x H F Register 2 Hidden screw installation V Visible screw installation T Linear version 6 Grille type JR -, 8

38 Plenum box for grilles Plenum box for grilles Plenum boxes Plenum box is designed for connection of ventilation grilles to the ventilation network. The most important function of plenum box is to create an even field of over- or underpressure (outlet) all over the effective outlet area of the grille. The construction of plenum box enables visible as well as hidden installation. Plenum box is made of galvanised sheet steel. Top entry spigot V Side entry spigot S Sizes Size B and H are the standard grille dimensions. Height of the plenum box h as well as entry spigot diameter фd is to be stated in order. h 0 v s d d Plenum box for the grilles stated below JR-,, 7, 8, RR-1,,, 6 11 B/H 11 Installation: Hidden assembly Visible assembly Ordering key Plenum box 62 x 22 / S / 1 x ф d 18 / h = 270 h Plenum box height фd E ntry spigot diameter 1 Number of spigots 2 S Side entry spigot V Top entry spigot Grille size BxH 0

39 Plenum box for grilles Table of recommended dimensions for the S version B H h* d* x18 2 2x x x x x x x x18 2 2x x x x x x x x x x x x18 h* recommended dimensions d* recommended dimensions B H h* d* x18 2 2x x x x x x x x x x x x x x x x x x x x198 B H h* d* x x x x x x28 2 2x x x x x x x x x x298 VENTILATING GRILLES, VENTILATING VALVES CIRCULAR DIFFUSERS, SQUARE DIFFUSERS SWIRL DIFFUSERS, VARIABLE SWIRL DIFFUSERS SLOT DIFFUSERS, ROUND DUCT DIFFUSERS AIR DISPLACEMENT UNITS SUPPLY AIR NOZZLES EXTERNAL ELEMENTS AIR FLOW CONTROL UNITS SOUND ATTENUATORS, SOUND ATTENUATING LOUVRES 1

40 Ventilating valve Ventilating valve PV-1N Description Fixed diffusion ring Adjustable disc for valve opening and closing Installation in built-in frame Peripheral foamy sealing strip Exhaust application Material Made of sheet steel and coloured upon customer s request. Component parts 1. Housing 2. Valve disc. Subframe Installation Frame is suitable for all installation types (wall, ceiling-or duct installation). It is fastened with screws. Place the valve in the groove and rotate it. Foamy sealant between the subframe and valve has a function to guarantee a perfect seal and to hold the valve in its position. St RAL 90 φb 1 2 Air flow regulation Adjust the air volume flow by rotating the valve disc in plus or minus direction. - S + s (mm) S S Dimensions: Size ΦB Ordering example Ventilating valve: PV-1N Size: 0 Pcs: 0 2

41 Ventilating valve PV-1N, size PV-1N, size VENTILATING GRILLES, VENTILATING VALVES p t (Pa) 0 0 L d B (A ) W A p t (Pa) 0 0 L d B (A ) W A CIRCULAR DIFFUSERS, SQUARE DIFFUSERS Pressure drop Pressure drop SWIRL DIFFUSERS, VARIABLE SWIRL DIFFUSERS Air flow Q ( m/h) Air flow Q ( m/h) PV-1N, size PV-1N, size SLOT DIFFUSERS, ROUND DUCT DIFFUSERS 0 0 L d B (A ) W A L d B (A ) W A AIR DISPLACEMENT UNITS p t (Pa) Pressure drop p t (Pa) Pressure drop SUPPLY AIR NOZZLES Air flow Q ( m/h) Air flow Q ( m/h) PV-1N, size 0 Pressure drop p t (Pa) L d B (A ) Air flow Q ( m/h) W A Example Use the air flow volume Q (m³/h) and pressure drop over the valve ΔP t (Pa) to determine the valve set-up s (mm) using the positive or negative direction. Given data: Q = 70m³/h, ΔP t = 60Pa Sizing diagram at the value 0 gives the valve set-up s = 0 mm. Definition of symbols Q (m³/h) Δp t (Pa) L WA (db(a)) Air flow Pressure drop Sound power level EXTERNAL ELEMENTS AIR FLOW CONTROL UNITS SOUND ATTENUATORS, SOUND ATTENUATING LOUVRES

42 Ventilating valve PV-2N Description Fixed diffusion ring Adjustable disc for valve opening and closing Installation in built-in frame Peripheral foamy sealing strip Supply application St RAL φb Material Made of sheet steel and coloured upon customer s request. Component parts 1. Housing 2. Valve disc. Subframe Installation Frame is suitable for all installation types (wall, ceiling-or duct installation). It is fastened with screws. Place the valve in the groove and rotate it. Foamy sealant between the subframe and valve has a function to guarantee a perfect seal and to hold the valve in its position. Air flow regulation Adjust the air volume flow by rotating the valve disc in plus or minus direction. - S + s (mm) S S Dimensions: Size ΦB Ordering example Ventilating valve: PV-2N Size: 0 Pcs: 0

43 Ventilating valve PV-2N, size PV-2N, size VENTILATING GRILLES, VENTILATING VALVES Pressure drop p t (Pa) Pressure drop p t (Pa) Pressure drop p t (Pa) Air flow Q (m/h) Air flow Q (m/h) PV-2N, size Air flow Q (m/h) Air flow Q (m/h) PV-2N, size W A L d B (A ) Air flow Q ( m/h) L d B (A ) W A W A L d B (A ) p t (Pa) Pressure drop Pressure drop 0 0 PV-2N, size 160 p t (Pa) L d B (A ) Definition of symbols Q (m³/h) Δp t (Pa) L WA (db(a)) Air flow Pressure drop W A Sound power level L d B (A ) W A CIRCULAR DIFFUSERS, SQUARE DIFFUSERS SWIRL DIFFUSERS, VARIABLE SWIRL DIFFUSERS SLOT DIFFUSERS, ROUND DUCT DIFFUSERS AIR DISPLACEMENT UNITS SUPPLY AIR NOZZLES EXTERNAL ELEMENTS AIR FLOW CONTROL UNITS SOUND ATTENUATORS, SOUND ATTENUATING LOUVRES

44 Ventilating valve PV- Application These valves are designed for business and residential use.they are suitable for wall or ceiling mounting. Meticulous workmanship allows inconspicuous installation. B A Description Two variants: exhaust and supply Sizes: Φ0, Φ12 mm, Φ160 mm Easy installation Environment friendly C Material The ventilating valve is made of antistatic ABS plastics. Installation The valve may be wall- or ceiling-mounted. In the case of a supply valve, set the regulator to stage 1, 2 or, depending on the desired flow rate. A standard exhaust PV- valve is not fitted with a deflector. The valve housing can be fitted with the RP-M air flow rate regulator. Standard dimensions Φ0 Φ12 Φ160 A B C Valve tests were carried out on ceiling-mounted valves, set to stage 1. Definition of symbols Exhaust Q Φ 0 basic element Φ 0 + RP-M m³/h P (Pa) Lw (db(a)) P (Pa) Lw (db(a)) 1 0. < 0 27 < Q Φ 12 basic element Φ 12 + RP-M m³/h P (Pa) Lw (db(a)) P (Pa) Lw (db(a)) 60 < Supply Q Φ 0 basic element Φ 0 + RP-M m³/h P (Pa) Lw (db(a)) Throw P (Pa) Lw (db(a)) 1 0. < 2,2 0 7 <, ,1 0 1 Δp (Pa) L WA (db(a)) Pressure drop Sound power level Q Φ 12 basic element Φ 12 + RP-M m³/h P (Pa) Lw (db(a)) Throw P (Pa) Lw (db(a)) 60 <, , ,2 0 1 Q Φ 160 basic element m³/h P (Pa) Lw (db(a)) , , 6

45 Ventilating valve Accessories RP-M REGULATOR for mounting on the PV- housing Φ0 mm: 1 do 60 m³/h Φ12 mm: 1 do 1 m³/h Sold separately RP-M/K REGULATOR for duct mounting Φ0 mm: 1 do 60 m³/h Φ12 mm: 60 do 1 m³/h Φ160 mm: 1 do 2 m³/h Sold separately MOUNTING FRAME Φ0 mm: length 10 mm Φ12 mm: length 10 mm Φ160 mm: length 10 mm Sold separately RP-M/K Flow rate (m³/h) Φ / / / / / / Φ / / / Φ Φ / / Φ / Φ / RPM: Size D1 (mm) D2 (mm) L (mm) Size Flow rate (m³/h) Flow Sound power level Lw (db(a)) rate (m³/h) 0 Pa 0 Pa 10 Pa 0 Pa Ordering key PV- / RP-M Size 0, 12, 160 Ordering key RP-M/K Size 80, 0, 12, 160, 0, D1 RP-M Flow rate regulator for PV- housing mounting RP-M/K Flow rate regulator with a duct mounting bracket VO Mounting frame BM White marble LO Wood walnut LR Wood red pine PR Pastel yellow PZ Pastel green PM Pastel blue L PV- Flow rate regulator with a duct mounting bracket D2 VENTILATING GRILLES, VENTILATING VALVES CIRCULAR DIFFUSERS, SQUARE DIFFUSERS SWIRL DIFFUSERS, VARIABLE SWIRL DIFFUSERS SLOT DIFFUSERS, ROUND DUCT DIFFUSERS AIR DISPLACEMENT UNITS SUPPLY AIR NOZZLES EXTERNAL ELEMENTS AIR FLOW CONTROL UNITS SOUND ATTENUATORS, SOUND ATTENUATING LOUVRES 7

46 Staircase swirl diffuser Staircase swirl diffuser Staircase swirl diffuser STD-1 STD-1/KK STD-1/KR STD-1/RR Application Staircase swirl diffusers STD-1 are ideal for use in theatres, auditoria, concert halls, cinemas, etc. They can be installed vertically in steps or floors which do not carry foot traffic. STD-1/KK STD-1/KR STD-1/RR Description They are made of sheet steel and powder coated with RAL 90 or RAL 900. Installation Floor installation or installation into steps STD-1/ /V STD-1/.../V φ 12 STD-1/ /T STD-1/.../T Installation: Vgradnja Floor Vgradnja installation: v v tla: tla: Vgradnja Stair v v stopnice: installation: V h1 V h1 t t h1 h1 V h1 V h1 t t h1 h1 L L h1 h1 h h X X L L h1 h1 V V (m (m /h) /h) pretok na na difuzorju V V (l/s) (l/s) pretok na na difuzorju Ordering key h h (m) (m) višina višina vgradnje nad nad tlemi tlemi L L (m) STD-1 (m) / KK oddaljenost / V od od difuzorja (L=h+x) hh 1 (m) 1 (m) razdalja merilne točke točke od od tal tal VV h1 (m/s) h1 (m/s) povprečna hitrost Installation zraka zraka na na razdalji h1 h1 od od tal tal * t * t Z (K) Z (K) temperaturna V razlika Visible med installation med temperaturo dovodnega zraka zraka in in zraka zraka v v prostoru * t * t h1 (K) h1 (K) razlika med med povprečno T Installation temperaturo with cross bar na na višini višini h1 h1 in in temperaturo v v prostoru p p t (Pa) t (Pa) padec tlaka tlaka KK Square diffuser plate, square blade arr. LL WA (db(a) WA A-utežena zvočna moč KR Square moč diffuser plate, radial blade arr. LL WNC NC WNC NC nivo nivo zvočne moči moči LL L WNR L = = LL + RR + 2 Circular diffuser plate, radial blade arr. 2 WNR WNR WNR WNC WNC LL pa,l pa,l pnc nivo pnc nivo zvočnega STD-1tlaka Diffuser utežen type po po A A krivulji ali ali NC NC nivo nivo v v odvisnosti od od prostora LL pa L pa L pwa - pwa - 88 db db LL pnc L pnc L pwnc - pwnc - 88 db db 8 * * Temperatura v v prostoru merjena od od 11 do do m od od tal! tal! Ključ Ključzaza naročanje: STD-1 / KK / V

47 t t Ventilating grilles, Ventilating valves Staircase swirl diffuser p v Pa V (l/s) Definition of symbols V (m³/h) Volume flow per diffuser v (l/s) Volume flow per diffuser h (m) Installation height above floor L (m) Distance from diffuser h 1 (m) Height of measurement point above floor V h1 (m/s) Time average air velocity at height h1 above floor Δt z (K) Temperature difference between supply air and room air* Δt h1 (K) Difference between core temperature at height h1 above floor and room temperature Δp t (Pa) Total pressure drop L WA (db(a) A-weighted sound power level L WNC NC rating of sound pover level L WNR L WNR= L WNc + 2 L pa, L pnc A-weighting or NC rating respectively of room sound pressure level L pa L pwa 8 db L pnc L pwnc 8 db *The room temperature is measured at 1.0 m to 1. m above the floor. Pressure drop and sound power level diagram V (m/h ) STD-1/.../T STD-1/.../D h 1= m h 1= m h 1= m V h1 (m/s) WNC STD-1/RR STD-1/KR L V (l/s) WA m /h L in db (A ) STD-1/KK p v Pa V h1 (m/s) STD-1/RR STD-1/KR L WNC WA L in db (A) m /h STD-1/KK V (m/h ) Air velocity of the throw distances STD-1/KR,RR STD-1/KK L(m) L(m) L(m) t h1 / t Z Stair installation - horizontal flow STD-1/RR STD-1/KR STD-1/KK VENTILATING GRILLES, VENTILATING VALVES CIRCULAR DIFFUSERS, SQUARE DIFFUSERS SWIRL DIFFUSERS, VARIABLE SWIRL DIFFUSERS SLOT DIFFUSERS, ROUND DUCT DIFFUSERS SOUND ATTENUATORS, SOUND ATTENUATING LOUVRES AIR DISPLACEMENT UNITS SUPPLY AIR NOZZLES EXTERNAL ELEMENTS AIR FLOW CONTROL UNITS 9

48 Staircase swirl diffuser STD-1/KR,RR STD-1/KK Floor installation - vertical flow h = m h 1= m h 1= m V h1 (m/s) m /h m /h V h1 (m/s) t h1 / t Z STD-1/RR STD-1/KR STD-1/KK L(m) L(m) L(m) STD-1/KR,RR STD-1/KK Stair installation - horizontal flow h 1= m h 1= m h 1= m V h1 (m/s) m /h V h1 (m/s) m /h t h1 / t Z STD-1/RR STD-1/KR STD-1/KK L(m) L(m) L(m) 60

49 Staircase swirl diffuser Staircase swirl diffuser STD-2 Application Staircase swirl diffusers STD-2 are ideal for use in theatres, auditoria, concert halls, cinemas, etc. They can be installed vertically in steps or floors, which do not carry foot traffic. The permitted supply air temperature difference is ± 6K. Description STD-2 are made of galvanized sheet steel and powder coated in RAL 90. On customer s request they are available in any other RAL colour. a STD-2/2 φ9 b L n x b L- a φ φ 70 VENTILATING GRILLES, VENTILATING VALVES Stopnišč Uporaba Stopni{~ za prezra ugodje. koncertn Vgrajuje v tla, ven Dovoljen je ± 6K. CIRCULAR DIFFUSERS, SQUARE DIFFUSERS Opis: Stopni{~ pocinkan 90. P barvo po SWIRL DIFFUSERS, VARIABLE SWIRL DIFFUSERS Tip STD-2/ STD-1/KKDimensions STD-2 6 STD-1/KR STD-2/2 STD-2/ STD-1/RR Type L (mm) a (mm) n x b STD-2/ x 80 STD-2/ x 8 STD-2/ x 88 STD-2/ x 92 STD-2/ x 7 STD-2/ STD-2/ STD-2/ STD-2/6 STD-2 STD-2 STD-2 STD-2 STD-2 SLOT DIFFUSERS, ROUND DUCT DIFFUSERS AIR DISPLACEMENT UNITS Effective discharge area No. of elements A ef (m²) STD-1/.../V φ h1 STD-1/.../T STD-2/ Vgradnja Vgradnja v tla: 1 STD-2/6 h L -2 h1 h1 h Vgradnja v stopnico: L h1 h Nomenklatura: Installation: Vgradnja Floor Vgradnja installation: v tla: V /element (l/s) pretok na posameznem elementu V (l/s) pretok na difuzorju Vgradnja h Stair (m) v stopnice: installation: vi{ina vgradnje nad tlemi (min. 0 mm) V h1 L (m) oddaljenost V h1 od difuzorja (L=h+x) t h1 h 1 (m) razdalja t h1 merilne to~ke od tal V h1 (m/s) povpre~na hitrost zraka na razdalji h1 od tal L t Z (K) * temperaturna X razlika med temperaturo dovodnega zraka in zraka v prostoru t h1 (K) L razlika med povpre~no temperaturo na vi{ini h1 in temperaturo v prostoru * p t (Pa) padec tlaka L WA (db(a)) A-utežena zvo~na mo~ V (m /h) pretok na difuzorju L WNC NC nivo zvo~ne mo~i V (l/s) pretok na difuzorju Ordering key h (m) višina vgradnje nad tlemi L (m) oddaljenost od difuzorja (L=h+x) * Temperatura STD-2/2 v prostoru merjena od 1 do 1. m od tal! h 1 (m) razdalja merilne točke od tal V h1 (m/s) povprečna hitrost zraka na razdalji h1 od tal 2,,,, 6 No. of distributive elements t Z (K) * temperaturna razlika med temperaturo dovodnega zraka in zraka v prostoru t h1 (K) * razlika med povprečno temperaturo na višini h1 in temperaturo v prostoru p t (Pa) padec tlaka L WA (db(a) A-utežena zvočna moč L Vh1 th1 h1 61 SUPPLY AIR NOZZLES EXTERNAL ELEMENTS AIR FLOW CONTROL UNITS SOUND ATTENUATORS, SOUND ATTENUATING LOUVRES