Ceiling diffusers - visible

Transcription

1 Ceiling diffusers - visible About Lindab Comfort and Design Product overview / symbols Theory Ceiling diffusers Ceiling diffusers - visible Plenum boxes Wall diffusers Nozzles Ventiduct Grilles Displacement diffusers VAV Constant- / variable flow dampers Air valves Fresh air valves/overflow units Cleanroom diffusers Contents. Lindab Ventilation A/S. All forms of copying without written permission are forbidden. is Lindab AB s registered trademark. Lindab s products, systems and product group and product designations are protected by intellectual property rights (IPR).

2 Ceiling diffusers - visible Ceiling diffusers for visible mounting Product Combination overview Functions Page DCS LCS PCS Industrial diffusers Product Functions Page Introduction RCW RCWB HLD FKD Right to alterations reserved

3 Ceiling diffusers - visible Usage Visible diffusers are normally used, where a suspended ceiling is not in place to hide the airduct systems and plenum boxes. The diffusers normally function by the mixed ventilation principle, and are used typically in office environments, canteens, schools or similar rooms, for comfort ventilation. In rooms with different and variable loads, the PCS and LCS can be motorized in order to achieve the possibilty of VAV-function, and consequently the abillity to vary the air flow / volume and achieve an individual regulation of the ventilation in the room. PCS, Dahlerup s Packhus, converted warehouse, Copenhagen Function The diffusers PCS, LCS and DCS are designed for visible mounting and fulfill most requirements of design and function. The diffusers have integrated plenum boxes with built-in dampers and measuring devices. As standard products the diffusers are available in circular design with a sideconnection painted in RAL 0 gloss. PCS, perforated ceiling diffuser Right to alterations reserved

4 Ceiling diffusers - visible Design See Comfort and Design Motor Accessories See Product pages Box Product Function Supp./exhau. Size DCS Nozzle diffuser Manual Electric motor Thermal actuator Mounting bracket Moduleplate MBB LCS Plain diffuser 0 0 Manual Electric motor Thermal actuator Mounting bracket Moduleplate MBB Perforated diffuser Manual Electric motor Thermal actuator Mounting bracket Moduleplate MBB PCS Swirl diffuser 0 0 Manual Electric motor Thermal actuator Mounting bracket Moduleplate MBB RCW 00 0 Swirl diffuser Manual Electric motor Thermal actuator Mounting bracket Moduleplate MBB RCWB 00 0 HLD Perforated diffuser 00 0 Manual Electric motor Thermal actuator Mounting bracket Moduleplate MBB FKD Multicone diffuser Manual Electric motor Thermal actuator Mounting bracket Moduleplate MBB. Product and tech. data depicted in catalogue.. Combination possible. Tech. data depicted in catalogue.. Combination possible. Tech. data not in catalogue.. If space is empty, combination is not possible. Right to alterations reserved

5 Nozzle diffuser DCS Dimensions Ød Description DCS is a circular diffuser with integrated box for visible installation. The diffuser is equipped with individually adjustable nozzles. The diffuser has an built-in damper and a measuring device for individual adjustment. DCS is equipped with a threaded rod at the top for attaching the diffuser. The diffuser is suitable for the horizontal supply of cooled air, where great flexibility in the dispersal pattern is required. Individually adjustable nozzles Supplied with integrated rivet nut for suspension Detachable damper for cleaning of duct Maintenance The face plate can be detached and the damper removed to enable cleaning of the internal parts or the duct. The visible parts of the diffuser can be wiped with a damp cloth. H L Ø A Ød Size ØA Ød L H Weight kg , 0, , , 0, 0, Order code Product DCS aaa A Type DCS Duct connection Ød Ø0- Version A Example: DCS-0-A Materials and finish Material: Galvanised steel Nozzles ABS Plastic, white Standard finish: Powder-coated Standard colour: White 0, gloss The diffuser is available in other colours. Please contact Lindab s sales department for further information. We reserve the right to make changes without prior notice 0--

6 Nozzle diffuser DCS Technical data Capacity Volume flow q v [l/s] and [m /h], total pressure Δp t [Pa], throw l 0. [m] and sound power level L WA [db(a)] can be seen in the diagrams. Frequency-related sound effect level The sound effect level in the frequency band is defined as L WA +K ok K ok values are specified in charts beneath the diagrams on the following pages Throw l 0. The throw is specified at a speed of 0. m/s. l 0. [m] DCS Quick selection Supply air DCS Minimum p t = Pa p t = Pa Ød P i = Pa L WA = db(a) L WA = db(a) l/s m /h l/s m /h l/s m /h l 0. [m] Sound attenuation Sound attenuation of the diffusers ΔL from duct to room, including end reflection, see table below DCS Ød Centre frequency Hz 0 K K K K Balancing Balancing data is contained in a separate brochure. We reserve the right to make changes without prior notice 0--

7 Nozzle diffuser DCS Technical data p t [Pa] p t [Pa] p t [Pa] DCS-0a Hz 0 K K K K K ok DCS-a Hz 0 K K K K K ok Hz 0 K K K K K ok DCS-0a p t [Pa] p t [Pa] DCS-0a Hz 0 K K K K K ok p t [Pa] DCS-a Hz 0 K K K K K ok DCS-a Hz 0 K K K K K ok We reserve the right to make changes without prior notice 0--

8 Plain diffuser LCS Dimensions L Description LCS is a circular diffuser with integrated box for visible installation. The diffuser has an unperforated face plate and can be used for both supply and exhaust air. H Ø d The diffuser has a built-in damper and a measuring device for individual adjustment. LCS is equipped with a threaded rod at the top for suspending the diffuser. The diffuser is suitable for the horizontal supply of cooled air, where high impulse is required. Can be used for both supply and exhaust air. Can be connected regardless of straight ducting before the diffuser Supplied with integrated rivet nut for suspension Detachable damper for cleaning of duct High impulse Maintenance The face plate can be detached and the damper removed to enable cleaning of the internal parts or the duct. The visible parts of the diffuser can be wiped with a damp cloth. Ød Size ØA Ød L Ø A H Weight kg 0 0, , , 0, Order code Product LCS bbb A Type Size Version Materials and finish Material: Galvanised steel Standard finish: Powder-coated Standard colour: White, RAL 0, gloss The diffuser is available in other colours. Please contact Lindab s sales department for further information. We reserve the right to make changes without prior notice

9 Plain diffuser LCS Technical data Capacity Volume flow q v [l/s] and [m /h], total pressure Δp t [Pa], throw l 0. [m] and sound power level L WA [db(a)] can be seen in the diagrams. Frequency-related sound effect level The sound effect level in the frequency band is defined as L WA + K ok K ok values are given in charts beneath the diagrams on the following pages. Quick selection Supply air Exhaust Minimum p t = Pa p t = Pa P i = Pa L WA =db(a) L WA =db(a) Size l/s m /h l/s m /h l/s m /h Minimum P t = Pa P t = Pa P i =Pa L WA = db(a) L WA = db(a) Size l/s m /h l/s m /h l/s m /h 0 0 Throw l 0. The throw is specified at a terminal velocity of 0. m/s. l 0. [m] LCS- 0 0 l 0. [m] Sound attenuation Sound attenuation of the diffusers ΔL from duct to room, including end reflection, see table below Centre frequency Hz Size 0 K K K K 0 0 We reserve the right to make changes without prior notice

10 Plain diffuser LCS Technical data p t [Pa] 0 LCS--a p t [Pa] p t [Pa] Hz 0 K K K K K ok LCS--0a Hz 0 K K K K K ok LCS--0a Hz 0 K K K K K ok p t [Pa] LCS--a p t [Pa] p t [Pa] Hz 0 K K K K Kok LCS--0a Hz 0 K K K K Kok LCS--0a Hz 0 K K K K Kok We reserve the right to make changes without prior notice

11 Plain diffuser LCS Technical data p t [Pa] LCS--a p t [Pa] Hz 0 K K K K K ok LCS--a Hz 0 K K K K K ok p t [Pa] p t [Pa] LCS--a Hz 0 K K K K Kok LCS--a Hz 0 K K K K Kok We reserve the right to make changes without prior notice

12 Perforated diffuser PCS Dimensions L H Ø d Description PCS is a circular diffuser with integrated box for visible installation. The diffuser has a perforated face plate and can be used for both supply and exhaust air. The diffuser has a built-in damper and a measuring device for adjustment. PCS is equipped with a threaded rod at the top for suspending the diffuser. The diffuser is suitable for the horizontal supply of cooled air. Can be used for both supply and exhaust air. Can be connected regardless of straight ducting before the diffuser Supplied with integrated rivet nut for suspension Detachable damper for cleaning of duct Maintenance The face plate can be detached and the damper removed to enable cleaning of the internal parts or the duct. The visible parts of the diffuser can be wiped with a damp cloth. Ø D Size ØD Ød L H Weight kg 0 0, , , 0, 0, Order code Product PCS bbb A Type Size Version Materials and finish Material: Galvanised steel Standard finish: Powder-coated Standard colour: White, RAL 0, gloss The diffuser is available in other colours. Please contact Lindab s sales department for further information. We reserve the right to make changes without prior notice

13 Perforated diffuser PCS Technical data Capacity Volume flow q v [l/s] and [m /h], total pressure Δp t [Pa], throw l 0. [m] and sound power level L WA [db(a)] can be seen in the diagrams. Frequency-related sound effect level The sound effect level in the frequency band is defined as L WA +K ok. K ok values are specified in charts beneath the diagrams on the following pages. Quick selection Supply air Exhaust Minimum p t = Pa p t = Pa P i = Pa L WA =db(a) L WA =db(a) Size l/s m /h l/s m /h l/s m /h Minimum P t = Pa P t = Pa P i =Pa L WA = db(a) L WA = db(a) Size l/s m /h l/s m /h l/s m /h Throw l 0. The throw is specified at a terminal velocity of 0. m/s. l 0. [m] PCS- 0 0 l 0. [m] Sound attenuation Sound attenuation of the diffusers ΔL from duct to room, including end reflection, see table below. Centre frequency Hz Size 0 K K K K 0 0 We reserve the right to make changes without prior notice

14 Perforated diffuser PCS Technical data p t [Pa] p t [Pa] p t [Pa] PCS--a Hz 0 K K K K K ok PCS--0a Hz 0 K K K K K ok Hz 0 K K K K K ok PCS--0a p t [Pa] PCS--a p t [Pa] p t [Pa] Hz 0 K K K K Kok PCS--0a Hz 0 K K K K Kok Hz 0 K K K K Kok PCS--0a We reserve the right to make changes without prior notice

15 Perforated diffuser PCS Technical data p t [Pa] p t [Pa] PCS--a Hz 0 K K K K K ok PCS--a Hz 0 K K K K K ok p t [Pa] p t [Pa] PCS--a Hz 0 K K K K Kok PCS--a Hz 0 K K K K Kok We reserve the right to make changes without prior notice

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17 Ceiling diffusers - visible Usage For ventilation of larger rooms in industry, shopping malls, hangars, arenas and similar buildings, there will typically be a need for both heating and cooling. This makes demands on being able to vary the jet pattern from horizontal (cooling needs) to vertical (heating needs). This is in order to avoid too great a velocity in the occupied zone in the cooling situation, and that the air penetrates the occupied zone in the heating situation, so the greatest amount of efficiency is obtained. Function HLD, DSB, Aarhus. The diffusers have an adjustable jet pattern, which makes the diffusers suitable for both heating and cooling. The jet pattern can be adjusted manually or with several types of electric motors. RCW/RCWB is available with a thermal actuator, where the jet pattern is adjustable in relation to the supply air temperature. This way costly electrical work for the individual diffusers is saved. RCW, rotation diffuser Right to alterations reserved

18 Ceiling diffusers - visible Industrial diffusers Product Functions Page Introduction RCW RCWB HLD FKD Right to alterations reserved

19 Swirl diffuser RCW Dimensions H L 0 Ø d Ø U Ø D Description RCW is a rotation diffuser particularly suitable for rooms with a high ceiling. The diffuser is equipped with adjustable blades, so the supply air pattern can be changed from vertical to horizontal. The blade settings can be adjusted manually, or the function can be automated using various types of motor. RCW with manual blade adjustment is supplied as standard with a blade setting of. The motorized models are supplied as standard with a blade setting from to. In the motorized versions, RCW can be supplied with an electric on/off motor, a modulating motor or a thermal actuator, where the supply air pattern is changed in step with the supply air temperature Suitable for both cooling and heating Horizontal and vertical dispersal pattern High induction Can be supplied with an electric motor Can be supplied with a thermal actuator Maintenance The visible parts of the diffuser can be wiped with a damp cloth. For other maintenance, see installation instructions. Order code Product RCW a bbb A Type Manual 0 Motorized - modulating Motorized- on/off Thermal actuator Size Version Ød Size * Motorized models weigh approx. kg more than the weight stated in the table above. Motor type ØD H L ØU Weight * kg RCW- Ød Motor -00 NMA-MF-F 0- LHA-MF0 RCW- Ød Materials and finish Motor -00 NMA-F 0- LHA0 Material: Aluminium & steel Standard finish: Powder-coated Standard colour: RAL 0 Gloss Available in other colours. Please contact Lindab's sales department for further information. Other blade settings can be supplied on request. We reserve the right to make changes without prior notice

20 Swirl diffuser RCW Technical data RCW with electric modulating motor Blade angle α Control voltage (V) RCW with thermal actuator Blade angle α Temperature (C ) C Capacity Volume flow q v [l/s] and [m /h], total pressure Δp t [Pa], throw l 0. [m] and sound power level L WA [db(a)] can be seen in the diagrams. Throw l 0. / turning point l 0.0 Throw l 0. [m] can be seen in the diagrams for isothermal air at a speed of 0. m/s. Turning point can be seen in the diagrams for heated air, + K, + K and + K respectively. Frequency-related sound effect level The sound effect level in the frequency band is defined as L WA +K ok. K ok values are specified in charts beneath the diagrams on the following pages. Quick selection q v [l/s] q v [m³/h] P t [Pa] l 0. isoterm [m] l 0.0 +K [m] Size Angle L WA = L WA = L WA = We reserve the right to make changes without prior notice

21 Swirl diffuser RCW Technical data p t [Pa] RCW-a p t [Pa] Hz 0 K K K K K ok RCW-a p t [Pa] 0 Hz 0 K K K K K ok RCW-00a Hz 0 K K K K K ok p t [Pa] RCW-0a p t [Pa] Hz 0 K K K K K ok Hz 0 K K K K K ok Throw l 0. horizontal Horizontal throw l 0. is specified for free suspension. If the diffuser is installed < 0 from the ceiling, the value must be multiplied by.. l 0. [m] RCW-a RCW isoterm 0 0 l 0. [m] We reserve the right to make changes without prior notice

22 Swirl diffuser RCW RCW- +K 0 RCW- T=+K RCW- +K 0 RCW- T=+K RCW- +K RCW- T=+K We reserve the right to make changes without prior notice

23 Swirl diffuser RCW RCW-00 T=+K 0 RCW-0 T=+K RCW-00 T=+K RCW-0 T=+K RCW-00 T=+K RCW-0 T=+K We reserve the right to make changes without prior notice

24 Swirl diffuser RCW RCW- T=+K RCW- T=+K RCW- T=+K We reserve the right to make changes without prior notice

25 Swirl diffuser RCWB Dimensions B H Ød H/ ØA Description RCWB is a rotation diffuser (RCW) with integral box, particularly suitable for rooms with a high ceiling. The diffuser is equipped with adjustable blades, so the supply air pattern can be changed from vertical to horizontal. The blade settings can be adjusted manually, or the function can be automated using various types of motor. RCWB with manual blade adjustment is supplied as standard with a blade setting of. The motorized models are supplied as standard with a blade setting from to. In the motorized versions, RCWB can be supplied with an electric on/off motor, a modulating motor or a thermal actuator, where the supply air pattern is changed in step with the supply air temperature. Suitable for both cooling and heating Horizontal and vertical dispersal patterns High induction Can be supplied with an electric motor Can be supplied with a thermal actuator Order code Product RCWB a bbb c A Type Manual 0 Motorized - modulating Motorized- on/off Thermal actuator Galvanised box 0 Box RAL 0 Size Version Ød Size * Motorized models weigh approx. kg more than the weight stated in the table above. Motor type ØA H B Weight * kg RCWB- Ød Motor -00 NMA-MF-F 0- LHA-MF0 RCWB- Ød Motor -00 NMA-F 0- LHA0 Maintenance The visible parts of the diffuser can be wiped with a damp cloth. For other maintenance, see installation instructions. Materials and finish Material: Aluminium & steel Standard finish: Powder-coated Standard colour: RAL 0 Gloss Box: Hot-galvanised steel Available in other colours. Please contact Lindab's sales department for further information. We reserve the right to make changes without prior notice

26 Swirl diffuser RCWB Technical data RCWB with electric modulating motor Blade angle α Control voltage (V) RCWB with thermal actuator Blade angle α Temperature (C ) C Capacity Volume flow q v [l/s] and [m /h], total pressure Δp t [Pa], throw l 0. [m] and sound power level L WA [db(a)] can be seen in the diagrams. Throw l 0. / turning point l 0.0 Throw l 0. [m] can be seen in the diagrams for isothermal air at a speed of 0. m/s. Turning point can be seen in the diagrams for heated air, + K, + K and + K respectively. Frequency-related sound effect level The sound effect level in the frequency band is defined as L WA +K ok. K ok values are specified in charts beneath the diagrams on the following pages. Quick selection q v [l/s] q v [m³/h] P t [Pa] l 0. isoterm [m] l 0.0 +K [m] Size Angle L WA = L WA = L WA = We reserve the right to make changes without prior notice

27 Swirl diffuser RCWB Technical data p t [Pa] RCWB-a Hz 0 K K K K K ok p t [Pa] RCWB-0a Hz 0 K K K K K ok p t [Pa] RCWB-a 0 0 p t [Pa] RCWB-a p t [Pa] Hz 0 K K K K K ok RCWB-00a Hz 0 K K K K K ok Hz 0 K K K K K ok Throw l 0. horizontal Horizontal throw l 0. is specified for free suspension. If the diffuser is installed < 0 from the ceiling, the value must be multiplied by.. l 0. [m] RCWB isoterm l 0. [m] We reserve the right to make changes without prior notice

28 Swirl diffuser RCWB l 0. [m] RCWB- - isoterm 0 l 0. [m] RCWB- - isoterm 0 l 0. [m] RCWB- +K RCWB- T=+K l 0. [m] RCWB- +K 0 RCWB- T=+K RCWB- +K RCWB- T=+K We reserve the right to make changes without prior notice

29 Swirl diffuser RCWB l 0. [m] RCWB-00 - isoterm 0 l 0. [m] RCWB-0 - isoterm 0 l 0. [m] [m] RCWB-00 T=+K 0 RCWB-0 T=+K RCWB-00 T=+K RCWB-0 T=+K RCWB-00 T=+K RCWB-0 T=+K We reserve the right to make changes without prior notice

30 Swirl diffuser RCWB l 0. [m] RCWB- - isoterm 0 l 0. [m] RCWB- T=+K RCWB- T=+K RCWB- T=+K We reserve the right to make changes without prior notice

31 Perforated diffuser HLD Dimensions Ød 00 Description HLD is a circular high level displacement diffuser adapted for industrial requirements. HLD is equipped with a damper function, which makes it possible to vary the supply air pattern between horizontal or vertical, depending on whether heating or cooling is required. The switch can be made manually, or it can be automated using several types of motor. The external dimensions of the diffuser are adapted to the connection, making it easy to integrate into an ordinary duct system. HLD can be suspended from or installed on a wall or column using the installation bracket, which ensures great flexibility no matter how premises are used. Suitable for both cooling and heating Horizontal and vertical dispersal patterns High capacity Flexible positioning Can be supplied with an electric motor Can be supplied with a thermal actuator Maintenance The visible parts of the diffuser can be wiped with a damp cloth. For other maintenance, see installation instructions. Order code Product HLD a bbb Type Manual 0 Motorized - modulating Motorized- on/off Automatic thermal actuator Size Accessories Product HLZ a Installation brackets (set) Size *Motorized models weigh approx. kg more than the weight stated in the table above. Motor type Ød Size Type HLD - HLD -. Materials and finish A A Weight * kg ,0 0,0 0,0 Material: Galvanised steel Standard finish: Galvanised Motor NMA-MF-F NMA-F HLD is also available in stainless steel. Please contact Lindab s sales department for further information. We reserve the right to make changes without prior notice

32 Perforated diffuser HLD Technical data Capacity Volume flow q v [l/s] and [m /h], total pressure Δp t [Pa], throw l 0. [m] and sound power level L WA [db(a)] can be seen in the diagrams. Throw l 0. / turning point l 0.0 Throw l 0. [m] can be seen in the diagrams for isothermal air at a speed of 0. m/s. Turning point can be seen in the diagrams for heated air, + K + K respectively. Frequency-related sound effect level The sound effect level in the frequency band is defined as L WA +K ok. K ok values are specified in charts beneath the diagrams on the following pages. Quick selection q v [l/s] q v [m³/h] P t [Pa] l 0. isoterm [m] l 0.0 +K [m] Size L WA = Horizontal Vertical Horizontal Vertical 00 Horizontal 00 Vertical 0 Horizontal 0 Vertical Horizontal 00 0 Vertical 00 0 L WA = Horizontal Vertical Horizontal Vertical 00 Horizontal 0 00 Vertical 0 0 Horizontal 0 Vertical Horizontal Vertical L WA = 0 Horizontal Vertical Horizontal Vertical 00 Horizontal 00 Vertical 0 Horizontal 0 Vertical Horizontal 0 Vertical 0 Supply air With its special design, HLD is suitable for the supply of large volumes of air with short throws in a limited area. This concentrates the supplied air in a small area within a larger space, after which the air distributes itself around the premises. Normally, a horizontal dispersal pattern is recoended in cooling situations and a vertical dispersal pattern in heating situations. Planning HLD with cooled air works in much the same way as displacement ventilation. Displacement ventilation has a higher temperature efficiency than mixing ventilation, and thus more power is discharged with the same volume of air and the same cooling temperature. For the calculation of discharged power in a cooling situation, use the calculation method for displacement ventilation. For HLD with heated air, power is calculated as for mixing ventilation. Horizontal supply air - cooling Vertical supply air - heating We reserve the right to make changes without prior notice

33 Perforated diffuser HLD Technical data Sound power level The diagram for sound effect level and pressure applies to both horizontal and vertical dispersal. p t [Pa] 0 0 HLD Size Hz 0 K K K K K ok K ok K ok K ok K ok Throw l 0. / Turning point l 0.0 These diagrams apply for installation heights > m HLD +K HLD +K We reserve the right to make changes without prior notice

34 Perforated diffuser HLD Technical data All diagrams apply for suspended installation. Near zones For cooling and horizontal supply air, HLD will function as a displacement diffuser positioned high up. The near zone is shown for two different heights, one inner near zone a 0. (. m) defined as the distance from the diffuser where the speed at a height of. m is 0. m/s, and an outer near zone a 0. (0. m), which is the distance from the diffuser where the speed at a height of 0. m is 0. m/s. Nearzone, Horizontal a 0. [m] 0 HLD- a 0. [m] -K (0.m) -K (0.m) -K (0.m) -K (.m) -K (.m) -K (.m) m, m a 0,(, m) a 0,(0, m) 0, m a 0. [m] HLD-00 -K (0.m) -K (0.m) -K (0.m) -K (.m) -K (.m) -K (.m) For wall installation the following corrections apply: a 0. at right angles to wall = diagram value. a 0. along wall = diagram value. a 0. [m] 0 HLD- a 0, x a 0, a 0. [m] -K (0.m) -K (0.m) -K (0.m) -K (.m) -K (.m) -K (.m) 0 0 a 0. [m] a 0. [m] HLD-0 a 0. [m] -K (0.m) -K (0.m) -K (0.m) -K (.m) -K (.m) -K (.m) a 0. [m] 0 HLD- -K (0.m) a 0. [m] -K (0.m) -K (0.m) -K (.m) -K (.m) -K (.m) We reserve the right to make changes without prior notice

35 Perforated diffuser HLD Technical data Spread For vertical supply air with warm air, the air from the diffuser will turn at a vertical distance of l 0.0 from the diffuser. The width of the air jet, b 0.0, which can also be designated horizontal spread, can be seen in the diagrams for spread. Spread, Vertical b 0.0 [m] HLD- +K +K +K 0 b 0.0 [m] b 0.0 [m] HLD-00 +K l 0,0 +K +K l 0.0 values in diagrams bottom right hand corner page. For wall installation the following correction applies: b 0.0 wall = diagram value.. b 0, b 0.0 [m] HLD-0 b 0.0 [m] +K +K +K b 0.0 [m] 0 HLD-, x b 0,0 b 0.0 [m] K +K +K 0 b 0.0 [m] b 0.0 [m] 0 HLD- b 0.0 [m] +K K +K We reserve the right to make changes without prior notice

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37 Multi-cone diffuser FKD Dimensions Vertical Ø N D F G Ø A Ø B C Horizontal Description FKD is an adjustable circular multi-cone diffuser, which is typically used for supply air. The diffuser can be switched between horizontal and vertical supply air and is therefore ideal for the supply of both heated and cooled air. Installing an FKD diffuser up to size 00 in a plenum box type MBB can help to achieve a stable airflow to the diffuser as well as realise the potential for individual adjustment. Suitable for both supply and exhaust air Vertical or horizontal supply air pattern Maintenance The multi-cone insert can be removed to enable cleaning of internal parts or to gain access to the duct or box. The visible parts of the diffuser can be wiped with a damp cloth. FKD ØA ØB C D E F G ØN Weight Size kg , ,0 0 0,0,0 Number of cones: size 0 00: size -: Ø A: ceiling grid opening E Order code Product FKD aaa Type FKD Connection dim. Ø0- Example: FKD-0 Materials and finish Material: Steel Standard finish: Powder-coated Standard colour: RAL 0 white The diffuser is available in other colours. Please contact Lindab s sales department for further information. We reserve the right to make changes without prior notice

38 Multi-cone diffuser FKD Dispersal patterns FKD is supplied for vertical supply air as standard. The dispersal pattern can be altered to horizontal supply air by setting the inner part of the diffuser to its lowest position. Accessories Plenum box MBB E FKD + MBB L x B Ød Ød C H F E FKD + MBB Duct FKD B C E F H L Ød Ød Order code Product MBB aaa bbb c Type MBB Duct connection Ø0- Diffuser dimension Ø0-00 Functional use S = Supply air E = Exhaust Example: FKD 0+MBB-0-0-S We reserve the right to make changes without prior notice

39 Multi-cone diffuser FKD Technical data Capacity Air flow q v [l/s] and [m /h], total pressure Δp t [Pa], throw l 0. [m] and sound power level L WA [db(a)] can be seen in the diagrams. Throw l 0. Throw l 0. [m] can be seen in the diagram for isothermal air at a speed of 0. m/s. Frequency-related sound effect level The sound effect level in the frequency band is defined as L wok = L WA + K ok. K ok values are specified in charts beneath the diagrams on the following pages. K ok values for FKD without a box can be found in a separate supplement. Horizontal l 0. [m] p t [Pa] 0 FKD l 0. [m] FKD Sound attenuation Sound attenuation of the diffuser ΔL from duct to room, including end reflection, see table below. FKD + MBB Duct FKD Centre frequency Hz Ød Ød 0 K K K K Balancing Balancing data is contained in a separate brochure. We reserve the right to make changes without prior notice

40 Multi-cone diffuser FKD Technical data Throw l 0. / turning point l 0.0 Throws l 0. [m] can be seen in the diagrams for isothermal air at a speed of 0. m/s. Turning point can be seen in the diagrams for heated air, + K, + K respectively. Vertical Vertical supply air correction sound power level (L WA ) and pressure loss (Δp t ) On the following pages you can find diagrams for all sizes FKD+MBB horizontal supply air. When Vertical supply air values are wanted, use the correction factors in the table below. p t [Pa] 0 FKD FKD + MBB Vertical supply air Duct FKD Correction factor Ød Ød L WA Δp t 0 0 x, 0 x, 0 x, 0 0 x, 0 0 x, 0 0 x, 0 0 x, 0 x, 0 0 x, x, x, 00 x, x, 00 x, FKD +K FKD +K We reserve the right to make changes without prior notice

41 Multi-cone diffuser FKD Technical data FKD 0 + MBB Horizontal FKD 0 + MBB Horizontal p t [Pa] FKD-0+MBB-0-0-S 0 p t [Pa] FKD-0+MBB-0-0-S p t [Pa] Hz 0 K K K K K ok FKD-0+MBB--0-S Hz 0 K K K K K ok p t [Pa] Hz 0 K K K K K ok FKD-0+MBB-0-0-S Hz 0 K K K K K ok p t [Pa] FKD-0+MBB-0-0-S 0 p t [Pa] FKD-0+MBB--0-S Hz 0 K K K K Hz 0 K K K K K ok K ok We reserve the right to make changes without prior notice

42 Multi-cone diffuser FKD Technical data FKD + MBB Horizontal FKD + MBB Horizontal p t [Pa] FKD-+MBB---S 0 p t [Pa] FKD-+MBB---S Hz 0 K K K K Hz 0 K K K K K ok K ok p t [Pa] 0 0 FKD-+MBB-0--S p t [Pa] 0 0 FKD-+MBB---S Hz 0 K K K K K ok Hz 0 K K K K K ok p t [Pa] 0 FKD-+MBB-0--S p t [Pa] 0 FKD-+MBB-0--S Hz 0 K K K K Hz 0 K K K K K ok K ok We reserve the right to make changes without prior notice

43 Multi-cone diffuser FKD Technical data FKD 00 + MBB Horizontal p t [Pa] FKD-00+MBB--00-S p t [Pa] Hz 0 K K K K K ok FKD-00-MBB--00-S Hz 0 K K K K K ok We reserve the right to make changes without prior notice

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