Round Duct System Model RR-Complete

Round Duct System Model RR-Complete Ferdinand Schad KG Steigstraße 25-27 D-78600 Kolbingen Telephone +49 (0) 74 63-980 - 0 Fax +49 (0) 74 63-980 - 200 info@schako.de www.schako.de

Contents Description...4 Component overview... 4 Quick selection of components and sizes... 5 Fastening... 5 Volumetric flow controller model VRA-RR...6 Description... 6 Installation... 7 Construction... 7 Model... 7 Dimensions... 8 Standard controllers and drives... 8 Technical data... 9 Quick selection... 9 Controller selection... 10 Legend... 10 Order details... 10 Specification text... 11 Volumetric flow restrictor DKA-MKA-RR... 12 Description... 12 Construction... 12 Model... 12 Dimensions... 13 Differential pressure diagram... 14 Order details... 14 Specification text... 15 Duct silencer RS-RR... 16 Description... 16 Construction... 16 Model... 16 Dimensions... 16 Order details... 17 Specification text... 17 RR diffuser components... 18 Function... 18 Fastening... 18 Round Duct Diffuser Model DBB-RR... 19 Description... 19 Construction... 19 Model... 19 Blade adjustment options... 19 Dimensions... 20 Order details... 21 Specification text... 21 Round Duct Grille KG-RR... 22 Description... 22 Construction... 22 Model... 22 Blade adjustment options... 22 Correction factor (for scattered air jet)... 23 Dimensions... 23 Order details... 24 Specification text... 24 Round Duct Nozzle Jet Diffuser DSA-RR... 25 Description... 25 Construction... 25 Model... 25 01/18-2

Contents Dimensions... 26 Order details... 27 Specification text... 27 Long Throw Nozzle Grille with Integrated Round Duct Model WGA-V-RR... 28 Description... 28 Construction... 28 Model... 28 Dimensions... 28 Order details... 29 Specification text... 29 Accessories for round duct system... 30 RR-COMPLETE... 30 Description... 30 Construction... 30 Dimensions... 31 - Dummy pipe (-BR)... 31 - Rubber lip seal (-GD)... 31 - Connection sleeve (-M)... 31 - Rosette (-RO)... 31 - Straight end cover (-EG)... 31 - T-piece 90 (-ATE)... 32 - Y-piece (-HSE)... 32 - Pressed bend (-BGE)... 32 - Bent segment (-BSE)... 32 - Symmetric reduction piece (-USE)... 33 - Asymmetric reduction piece (-UAE)... 33 - Inserted lengths... 33 Order details... 33 Specification text... 34 Installation, Mounting and Maintenance... 35 Installation position... 35 Mounting... 35 Maintenance... 35 01/18-3

Description In modern architecture, sheet metal and spiral ducts of air-conditioning systems are often incorporated in the design of the room. Emphasis is often placed deliberately on parts of the supply system. In this visible installation of the ventilation ducts, it is a good idea to integrate volumetric flow controllers, duct silencers and air diffusers into the ducts. In order to be able to offer planners a technically outstanding system, which can also be well integrated into modern architectural concepts, we have developed the round duct system type RR-COMPLETE. Its modular design allows architects and planners to construct freely visible ventilation systems on the highest esthetic level. They thus provide a room with visual highlights. The system can be used in laboratories, schools, kindergartens, swimming pools, offices, showrooms, seminar rooms, restaurants, gymnasiums, multi-purpose halls and even in residential buildings, in theory almost anywhere. Apart from its versatile geometric options, the round duct system harmonises with its environment also in terms of colour. The technical aspects of the round duct system impress with their wide range of components. Volumetric flow controllers, measuring cross/damper combinations and not least supply air and return air diffusers - vertical or horizontal mounting possible - can be combined to give a complete system. All components can be manufactured to the same diameters and to a uniform duct design. In addition to electric volumetric flow controllers, as an alternative, a manually operated combination of measuring cross and damper for regulation of the volumetric flow can also be used. The round duct system is already designed in the planning stage at SCHAKO and supplied to the customer as CAD drawing. This guarantees that all components are optimally tuned to one another. In on-site mounting, the round duct system excels with its premounted suspension devices such as the rivet nuts for the threaded bars. For maintenance, service, retrofitting, etc., inspection openings in sufficient number and size must be provided on-site. The different components are connected by using connecting sockets. All single components are equipped as a standard with a rubber lip seal for an airtight assembly. Advantages: - Complete: Implementation of a complete and adjustable system: integrated supply air and return air diffusers, controllable volumes. - Aesthetic: All components can be manufactured to the same diameters and to a uniform duct design. - Flexible: Any geometry is possible thanks to the combination of dummy pipes, bends, arc segments and connecting pieces. - Adaptable: The galvanised sheet steel model is available in all RAL colours, and the stainless steel model is suitable for aggressive environments. - Easy to mount: Pre-mounted suspension devices reduce the assembly time. - CAD-supported: Technical design by SCHAKO, the customers gets finished CAD drawings. - Design: The technical design of the duct system is only possible by means of the SCHAKO layout program. Component overview - Volumetric flow controller VRA-RR (page 6) - Volumetric flow restrictor DKA-MKA (page 12) - Duct silencer RS-RR (page 16) - Round duct diffuser DBB-RR (page 19) - Round Duct Grille KG-RR (page 22) - Round Duct Nozzle Jet Diffuser DSA-RR (page 25) - Long-Throw Nozzle Grille with Integrated Round Duct WGA- V-RR (page 28) 01/18-4

Quick selection of components and sizes Volumetric flow controller model VRA-RR NW VRA-RR P L 200 x 20 575 224 x 32 575 250 x 45 575 280 x 40 660 315 x 45 705 355 x 52,5 760 400 x 42,5 885 450 x 47,5 975 500 x 50 1115 Volumetric flow meter DKA-MKA-RR NW DKA-MKA-RR P L 200 x 20 575 224 x 32 575 250 x 45 575 280 x 40 660 315 x 45 705 355 x 52,5 760 400 x 42,5 885 450 x 47,5 975 500 x 50 1115 Duct silencer RS-RR NW RS-RR P L 200 x 20 224 x 32 250 x 45 280 x 40 315 x 45 355 x 52,5 400 x 42,5 450 x 47,5 500 x 50 Round Duct Diffuser Model DBB-RR NW DBB-RR-Z (supply air) DBB-RR-A (return air) 200 x x 224 x x 250 x x 280 x x 315 x x 355 x x 400 x x 450 x x 500 x x 1-part 2-part 500 750 1000 1500 1750 2000 1-part 2-part L 500 750 1000 1500 1750 2000 Round Duct Grille KG-RR NW Model KG-RR Height H L 65 115 215 315 200 x x x - - 224 x x x - - 250 x x x x - 280 x x x x - 315 x x x x - 355 x x x x x 400 x x x x x 450 x x x x x 500 x x x x x Round Duct Nozzle Jet Diffuser DSA-RR NW Model DSA- Nozzle rows RR 1 2 4 200 x x x - 224 x x x - 250 x x x - 280 x x x - 315 x x x - 355 x x x - 400 x x x x 450 x x x x 500 x x x x Long Throw Nozzle Grille with Integrated Round Duct Model WGA-V-RR NW WGA-V-RR Nozzle rows L 1 2 200 x x - 224 x x - 250 x x - 280 x x - 315 x x - 355 x x - 400 x x x 450 x x x 500 x x x P (mm) = Packing thickness L (mm) = Length Fastening With rubber lip seal as a standard. 1-part 2-part 1-part 2-part 500 750 1000 1500 1750 2000 L 1-part 2-part 500 750 1000 1500 1750 2000 500 750 1000 1500 1750 2000 Suspension - prepared for suspended installation using M8 threaded rods to be provided by the customer. 01/18-5

Volumetric flow controller model VRA-RR Description A volumetric flow controller is used for pressure-independent volumetric flow regulation in ventilation and air-conditioning systems. It is used to keep the volumetric flow constant (CAV) within specified limits or to control it variably (VAV) as a function of a command variable, for example a room temperature controller, DDC or bus system. For constant volumetric flows, the operating stages CLOSED/V min /V mid /V max /OPEN are available in stage operation, controlled via relays or switches. The housing, measuring sensor, control flap, PI controller with pressure sensor and actuator form a closed control loop with feedback, allowing demand-dependent, energy-saving airconditioning of the single rooms or areas of air-conditioning systems. When suitable electrical controller types are used, room or duct pressure regulation can be achieved. The first adjustment of the V min, V max and V nenn operating volumetric flows is done prior to delivery ex works in accordance with specific customer requirements, although V min and V max can be easily changed at any time with the controller already mounted by means of the handheld control device or the PC- Tool software. When these values are set, the functions of all volumetric flow controllers are also checked. The operating point V max can be set in the range 20 (30)...100% of the nominal volumetric flow of the box, while the operating point V min is set in the range 0...100%, relative to V max or V nenn (depending on the controller types). The maximum deviation of the volumetric flows is +/- 5%, relative to the nominal volumetric flow V nenn, based on a calibration curve of 12 m/sec. At lower flow rates, the deviation in percent may increase. For the calibration of the controllers, a curve with a flow rate of 12 m/ sec is available. For constant-volume volumetric flow controllers, the V min value will be set to the desired constantvolume value. If the calibration curve must be changed on site, the controllers must either be recalibrated ex-factory or the calibration curve must be changed on site by the customer service of Schako. For the measurement of the differential pressure, SCHAKO is using its measuring principle by means of a double measuring cross made of extruded aluminium profile, to which 12 measuring points have been attached on the pressure and suction side, respectively, by the median line method, in order to determine average values. In comparison with measuring rods or measuring orifices having fewer measuring points, this gives higher accuracy, allowing the inflow area required in front of the volumetric flow controller to be minimised (see page 7 - Installation Information). When using the controllers in systems with heavy dust contamination, suitable filters must be used. For contaminated or aggressive air or air containing fluffy material, only those controller types must be used that incorporate a differential pressure sensor. Since the membrane zero point must not be changed in static sensors, the mounting instructions documented by the manufacturer must be adhered to. The volumetric flow controllers type VRA are not suitable for air containing sticky and greasy particles (e.g. kitchen exhaust air). Housing leakage according to DIN EN 1751, class B, at a duct pressure of up to 1000 Pa. Leakage with damper blade closed according to DIN EN 1751 Class 3 at a duct pressure of up to 1000 Pa. Higher requirements upon request. The volumetric flow controller VRA has been tested successfully by TÜV SÜD in accordance with the following regulations: - VDI 6022, Sheet 1: Hygienic requirements of ventilation and air-conditioning systems - VDI 6022, Sheet 2: Hygienic requirements of ventilation and air-conditioning systems - Measurement methods and investigations during hygienic controls and hygienic inspections - DIN 1946, Sheet 2: Air-conditioning technology - Health requirements For maintenance, service, retrofitting, etc., inspection openings in sufficient number and size must be provided on-site. Field of application - for supply and return air systems - for constant CAV or variable VAV installations. - for positive control V min, V mid, V max, "OPEN" or "CLOSED" - For volumetric flow and linear pressure control - in the differential pressure range 50-1,000 Pascal - at ambient temperatures 0...+...50 C, requirement: measuring air 0...+ 50 C/5...95% rh, non-condensing - with command signal 0...10V DC, 2...10V DC, via MP bus (Belimo), digital LonWorks or Modbus - with supply voltage 24 V AC (19.2..28.8 V) or 24 V DC (21.6..28.8 V) - with DD varnish coating for aggressive media - for regulating the air velocity in the duct in the range 1..12 m/ s (electric). - can also be used with vertical axis Before connecting SCHAKO components to customer installations, any compatibility problems must be solved on-site and are not our area of responsibility. 01/18-6

Installation Installation information To avoid unnecessary controller errors, the min. distances according to the following table / drawings must be observed. For combinations of several connection pieces or pieces with fire dampers or silencers, the larger minimum distances must be observed. All volumetric flow controllers can be assembled with horizontal or vertical damper axis. Distance to: Connection piece with bend Other connection pieces: (e.g. T-junction, branching piece, reduction piece, etc.) Fire damper: Silencers: Installation information for VRA-RR (round) Distance to a connection piece with bend Distance to other connection pieces (e.g. branching piece, reducing piece, T-junction, etc.) Distance to fire dampers VRA-RR 1 x D 1 x D 1 x D 1 x D Construction Housing (outer tube / end cover) - Stainless steel 1.4301 (V2A) painted in colour sand silver Inner tube and damper blade - Manufactured from the same material as the housing. - Galvanised sheet steel - stainless steel 1.4301 (V2A) Insulation - integrated acoustic cladding with non-flammable mineral wool filling to DIN 4102 A2. Damper leaf seal - made of PUR, silicone-free. - for airtight sealing design to DIN EN 1751. Damper bearing - Brass Measuring cross - Extruded aluminium profile (for stainless steel design with DD coating). Measuring cross support - Plastic (PA6). Rubber lip seal - on both sides, made of EPDM. Model VRA-RR - with electric controller - Control voltage 24 V AC 50/60 Hz - alternatively with spring return actuator zerocurrent "CLOSED" or zero-current "OPEN" (at an extra - alternatively with high-speed actuator running time 3-5 sec. for 90 angle of rotation (at an extra VRA-RR-3U - Position electric controller: on the right-hand side (3 o'clock) VRA-RR-9U - Position electric controller: on the left-hand side (9 o'clock) VRA-RR-0U - Position electric controller: on top (12 o'clock) D = diameter not included in the scope of delivery of RR-COMPLETE. Attention! We would like to point out that for cleaning stainless steel models, only suitable cleaning materials may be used! Mounting position, see page 35. 01/18-7

Dimensions VRA-RR-0U 24 V outside LR outside LR = Air flow direction Available sizes VRA-RR-... NW ød ød P L 200 198 158 20 575 224 222 158 32 575 250 248 158 45 575 280 278 198 40 660 315 313 223 45 705 355 353 248 52,5 760 400 398 313 42,5 885 450 448 353 47,5 975 500 498 398 50 1115 Sealing airtight to DIN EN 1751 (class 3). P (mm) = Packing thickness Standard controllers and drives Type VRA-RR Size ø200 - ø500 Controller / Drive LMV-D3-MP Actuator Compact Make Belimo Rubber lip seal Detail X Detail Y Threaded rod on site Rivet nut M8 01/18-8

Technical data Quick selection for total air volumes of the duct system per branch duct NW ød ød V Belimo VRP-M Belimo Compact / Gruner (on request) (mm) (mm) (mm) v min v max v min v max (2 m/s) (12 m/s) (1 m/s) (12 m/s) 200 198 158 m³/h 139 836 69 836 l/s 39 232 19 232 224 222 158 m³/h 139 836 69 836 l/s 39 232 19 232 250 248 158 m³/h 139 836 69 836 l/s 39 232 19 232 280 278 198 m³/h 219 1317 110 1317 l/s 61 366 31 366 315 313 223 m³/h 279 1672 139 1672 l/s 78 464 39 464 355 353 248 m³/h 345 2070 172 2070 l/s 96 575 48 575 400 398 313 m³/h 550 3303 275 3303 l/s 153 918 76 918 450 448 353 m³/h 701 4204 350 4204 l/s 195 1168 97 1168 500 498 398 m³/h 891 5348 446 5348 l/s 248 1486 124 1486 Attention, the following specifications are important for the programming of the volumetric flow controllers: - this table merely specifies the complete measuring range of the controller (volumetric flow range) - If the customer absolutely wants a calibration curve different from 12 m/s, it must be specified! - When the air volume drops below the V min shown in the chart, the correct functioning of the volumetric flow controller is no longer guaranteed! - If only one air volume is specified in the order (as V max value), the volumetric flow controller will be delivered as variable volumetric flow controller. The V min value will be set to the value specified in the catalogue. - If only one air volume is specified in the order (as V min or V konstant value or without value specification), then the volumetric flow controller will be delivered as a constant volumetric flow controller. The volume specified in the order is set to the V min value, and the V max value is set to 100%. - The air volumes can be changed using setting devices specific of the controller make, depending on the calibration curve set ex works. - For the parameter setting of the control components (all controllers), an air density of 1.2 kg/m³ has been taken into account. - Belimo compact controllers are height-compensated. They are calibrated ex works to the system height in question of the specified installation site. - If no system height is given in the order, the controllers will be set to the elevation of the delivery address. - If the customer does not specify whether the "Parallel" or "Master/Slave" operating mode is desired, the controller is set for the parallel operation (Master/Slave mode only upon customer request). For further technical data (e.g. static minimum pressure difference, sound values, etc.), the technical data of the controller (circuit diagrams, etc.) as well as assembly and maintenance instructions, refer to documentation volumetric flow controller VRA, register 08, catalogue 2 or the SCHAKO design programme. 01/18-9

Controller selection Electric controller: Actuator: VRA-RR-E - Belimo: - LMV-D3-MP Compact - VRP-M-VFP 300 NMQ24A-SRV-ST (high-speed damper drive) NM24A-V-ST LF24A-V (spring return) - LMV-D3MOD Compact - LMV-D3LON Compact - Gruner : - 227VM-024-05 Compact - GUAC-SM3/SCH 227C-024-05-V 227CS-024-05-V (high-speed damper drive) 341C-024-05-V (spring return) Accessories: S1A/S2A, limit switch make Belimo, to fit all new compact controllers and actuators of make Belimo. ZTH-EU/PC-Tool for Belimo... GUIV-O for Gruner. Legend V (m³/h) = Air volume V [l/s] = Air volume NW (mm) = Nominal width v min (m/s) = min. velocity v max (m/s) = max. velocity P (mm) = Packing thickness L (mm) = Length Order details Round volumetric flow controller with electric controller VRA-RR for round duct system RR-Complete Variable volumetric flow rate control...-... (V min -V max ) Housing made of Galvanised sheet steel painted to RAL 9010 (white, standard) -St Accessories: Operating mode 0-10 V 3 o'clock -3U Housing made of Sheet steel galvanised -SV Mounting position 9 o'clock -9U Constant volumetric flow rate control... (V kons ) Operating mode 2-10 V Housing made of stainless steel 1.4301 (V2A) -ES 12 o'clock -0U NW 200 224 250 280 315 355 400 450 500 RAL colour of your choice Unless stated otherwise, the thick-frame model will be delivered. 01/18-10

Specification text Volumetric flow controller VRA-RR (supply and return air), for the round duct system RR-COMPLETE, with electrically adjustable round damper with integrated acoustic cladding, for spiral duct connection. For use in supply/return air systems for constant or variable volume flow, room or duct pressure control. With positive control V min, V max or "CLOSED". Allowed pressure difference range: 50-1000 Pa, allowed ambient temperature 0-55 C. Suitable for use with duct velocities of 2-12 m/s. It is possible to subsequently adjust the operating volumetric flows set ex works. The output signal can be used for master/slave or parallel operation of several controllers or for actual value display 2-10 V DC (0-10 V DC), which corresponds to 0-100 % of the set V max in DDC/ZLT systems. Housing consisting of 1.0 to 1.5 mm-strong outer tube with rubber seal lip made of EPDM and inner tube. With integrated acoustic cladding with mineral wool filling to DIN 4102 A2 (nonflammable). With cover on both ends. Silicone-free damper blade seal made of PUR for airtight sealing (design to DIN EN 1751). Measuring cross made of extruded aluminium profile, measuring cross support made of plastic (PA6), damper bearing made of brass. With electric controller, control voltage 24 V AC, 50 / 60 Hz, temperature compensation of 10-40 C, wired and adjusted in factory. TÜV inspected according to VDI 6022 Sheets 1+2. Product: SCHAKO type VRA-RR - Mounting position - 3 o'clock (-3U, standard) - 9 o'clock (-9U) - 12 o'clock (-0U) Accessories (at an extra charge): - a RAL colour of your choice - Housing (outer tube / end cover) made of: standard) - Galvanised sheet steel (-SV) (at an extra charge) - Stainless steel 1.4301 (V2A) painted in the colour sand silver (-ES, at an extra charge) - Inner tube and damper blade - Manufactured from the same material as the housing: - Galvanised sheet steel - stainless steel 1.4301 (V2A) - Housing leakage according to DIN EN 1751, class B, at a duct pressure of up to 1000 Pa. - Leakage with closed damper blade according to DIN EN 1751 Class 3 at a duct pressure of up to 1000 Pa. Higher requirements upon request. - with spring return actuator (at an extra charge) - currentless "CLOSED" - currentless "OPEN" - with high-speed actuator drive 01/18-11

Volumetric flow restrictor DKA-MKA-RR Description For quick, easy control of the supply air volume, the DKA-MKA- RR was especially developed for the round duct system RR- COMPLETE. The round, manually adjustable volumetric flow restrictor DKA- MKA-RR is suitable for installation in round supply air and return air ducts according to DIN 24145 or 24146. It is used for regulating the volumetric flows in air-conditioning installations. The integrated volumetric flow controller measuring cross type is mainly used for measuring the air volumetric flow downstream of the central unit or fan or for adjusting branch ducts or in ventilation and air-conditioning installations of large shopping centres having several tenants, for determining the share in energy costs of the ventilation and air-conditioning installation. The hand-adjustable device with integrated position indicator allows an exact setting of the damper blade, without tools, between 0 and 90. The housing is dimensionally stable due to standard double beads. The throttle damper can be used at temperatures between 0 C and +50 C. Maximum duct pressure 500 Pa. The measuring cross substantially facilitates the measurement of the air volumetric flow, compared with the previous cost- and time-intensive measuring method, in which many individual points have to be measured. The measuring deviation of the volumetric flow measuring cross is + 5% bei 100 % V max. The measuring cross is largely insensitive to the intake flow, since 12 measuring points are distributed on this measuring cross according to the median line method. In comparison with measuring rods having only 4 measuring points or measuring orifices, this gives optimum measurement results. In order to exclude any unnecessary sources of errors, please observe to the assembly method for VRA- RR on page 7. The differential pressure determined at the measuring cross can be measured with a (static or dynamic) pressure measuring device. When using the measuring crosses in systems with heavy dust contamination, suitable filters must be connected upstream. The measuring crosses are not suitable for air with greasy and sticky particles. For maintenance, service, retrofitting, etc., inspection openings in sufficient number and size must be provided on-site. Advantages: - stable design - easy to regulate - assembly-friendly - fits position-independent Mounting position, see page 35. Construction Housing (outer tube / end cover) Inner tube, damper blade and manual adjusting device - Manufactured from the same material as the housing. - Galvanised sheet steel - stainless steel 1.4301 (V2A). Insulation - integrated acoustic cladding with non-flammable mineral wool filling to DIN 4102 A2. Damper leaf seal - made of PUR, silicone-free. - for airtight sealing design to DIN EN 1751, class 3. Damper bearing - Brass Measuring cross - Extruded aluminium profile (for stainless steel design with DD coating). Measuring cross support - Plastic (PA6). Rubber lip seal - on both sides, made of EPDM. Model DKA-MKA-RR - with manual adjusting device DKA-MKA-RR-3U - Position manual adjustment: on the right-hand side (3 o'clock) DKA-MKA-RR-9U - Position manual adjustment: on the lefthand side (9 o'clock) Field of application - for supply and return air systems - for constant or variable volumetric flows - differential pressure range from 50 to 1000 Pa - for ambient temperatures of 0-55 C Attention! We would like to point out that for cleaning stainless steel models, only suitable cleaning materials may be used! 01/18-12

Dimensions DKA-MKA-RR-3U hose connection on site outside outside LR = Air flow direction LR Available sizes DKA-MKA-RR NW ød ød P L 200 198 158 20 575 224 222 158 32 575 250 248 158 45 575 280 278 198 40 660 315 313 223 45 705 355 353 248 52,5 760 400 398 313 42,5 885 450 448 353 47,5 975 500 498 398 50 1115 Sealing airtight to DIN EN 1751 (class 3). Manual adjustment: available at the top or on the side P (mm) = Packing thickness Rubber lip seal Detail X Detail Y Threaded rod on site Rivet nut M8 01/18-13

Differential pressure diagram Order details Volumetric flow restrictor for round duct system RR-Complete DKA-MKA-RR Housing made of Galvanised sheet steel painted to RAL 9010 (white, standard) -St Housing made of Sheet steel galvanised -SV Housing made of stainless steel 1.4301 (V2A) -ES Mounting position 3 o'clock -3U 9 o'clock -9U NW 200 224 250 280 315 355 400 450 500 Accessories: RAL colour of your choice Unless stated otherwise, the thick-frame model will be delivered. 01/18-14

Specification text Volumetric flow restrictor DKA-MKA-RR (supply and return air), for the round duct system RR-COMPLETE, with manually adjustable round damper with integrated acoustic cladding, for spiral duct connection. For use in supply and return air systems, for constant or variable volumetric flows. Allowed differential pressure range: 50-1000 Pa. Allowed ambient temperatures: 0-55 C Housing consisting of 1.0 to 1.5 mm-strong outer tube with rubber seal lip made of EPDM and inner tube. With integrated acoustic cladding with mineral wool filling to DIN 4102 A2 (nonflammable). With cover on both ends. Silicone-free damper blade seal made of PUR for airtight sealing (design to DIN EN 1751). Measuring cross made of extruded aluminium profile, measuring cross support made of plastic (PA6), damper bearing made of brass. Product: SCHAKO type DKA-MKA-RR - Housing made of: standard) - Galvanised sheet steel (-SV) (at an extra charge) - Stainless steel 1.4301 (V2A) painted in the colour sand silver (-ES, at an extra charge) - Inner tube, damper blade and manual adjusting device - Manufactured from the same material as the housing: - Galvanised sheet steel - stainless steel 1.4301 (V2A) - Mounting position - 3 o'clock (-3U, standard) - 9 o'clock (-9U) Accessories (at an extra charge): - a RAL colour of your choice 01/18-15

Duct silencer RS-RR Description Silencing of the duct silencer type RS-RR in accordance with the absorption principle is done by means of an annular chamber filled with mineral wool according to DIN 4102 A2 non-flammable, mineral wool with glass silk cover. Specially designed for the round duct system RR-COMPLETE with the same duct diameter, the duct silencer is adapted optically to the remaining components. For maintenance, service, retrofitting, etc., inspection openings in sufficient number and size must be provided on-site. Dimensions RS-RR outside outside Attention: The use of the RS-RR is not only designed for minimising the flow-generated noise of the volumetric flow controller, but also for preventing the cross-talk sound transmission from room to room! Mounting position, see page 35. Construction Housing Inner tube - Manufactured from the same material as the housing. - Galvanised sheet steel - stainless steel 1.4301 (V2A). Rubber lip seal - on both sides, made of EPDM. Available sizes NW Rubber lip seal Detail X ød mm ød mm P mm 200 198 158 20 224 222 158 32 250 248 158 45 280 278 198 40 315 313 223 45 355 353 248 52,5 400 398 313 42,5 450 448 353 47,5 500 498 398 50 P (mm) = Packing thickness 1-part 2-part L mm 500 750 1000 1500 1750 2000 Model RS-RR - Annular chamber with mineral wool filling Detail Y Attention! We would like to point out that for cleaning stainless steel models, only suitable cleaning materials may be used! Threaded rod on site Rivet nut M8 Technical data For the technical data, please refer to the SCHAKO layout program. 01/18-16

Division of length RS-RR 1-part Lengths 500/750/1000 2-part Length 1500 Length 1750 Specification text Duct silencer RS-RR (supply and return air), for the round duct system RR-COMPLETE. With sound absorption according to the absorption principle, by means of an annular chamber filled with mineral wool according to DIN 4102 A2 non-flammable. Housing consisting of 1.0 to 1.5 mm-strong outer tube with rubber seal lip made of EPDM and inner tube made of perforated sheet covered abrasion-resistant toward the air flow direction. With integrated acoustic cladding with mineral wool filling to DIN 4102 A2 (non-flammable). With cover on both ends. Product: SCHAKO type RS-RR - Housing (outer tube / end cover) made of: standard) - Galvanised sheet steel (-SV) (at an extra charge) - Stainless steel 1.4301 (-V2A) painted in the colour sand silver (-ES, at an extra charge) Length 2000 - Inner tube - Manufactured from the same material as the housing: - Galvanised sheet steel - stainless steel 1.4301 (V2A) Order details Duct silencer for round duct system RR-Complete RS-RR - Length - 1-part: 500 / 750 / 1000 (-0500/-0750/-1000) - 2-part: 1500 / 1750 / 2000 (-1500/-1750/-2000) Accessories (at an extra charge): - a RAL colour of your choice Housing made of Galvanised sheet steel painted to RAL 9010 (white, standard) -St Housing made of Sheet steel galvanised -SV Housing made of stainless steel 1.4301 (V2A) -ES 500-0500 Length 1-part 750-0750 1000-1000 1500-1500 Length 2-part 1750-1750 2000-2000 NW 200 224 250 280 315 355 400 450 500 Accessories: RAL colour of your choice Unless stated otherwise, the thick-frame model will be delivered. 01/18-17

RR diffuser components (DBB-RR / KG-RR / DSA-RR / WGA-V-RR) Function In modern architecture, sheet metal and spiral ducts of air-conditioning systems are often incorporated in the design of the room. Emphasis is often placed deliberately on parts of the supply system. In this visible installation of the ventilation ducts, it is a good idea to integrate the air diffusers into the ducts. In order to be able to offer planners a technically advanced air diffuser, which can also be well integrated into modern architectural concepts, we have developed our round duct diffusers DBB-RR, KG-RR, DSA-RR and WGA-V-RR. The RR diffusers consist of a round duct with integrated blades (DBB-RR / KG-RR) or integrated nozzles (DSA-RR / WGA-V- RR). Advantages: - Noise level and pressure loss in all blade or nozzle positions remain the same when changing the air flow direction. - Dimensionally stable smooth duct is easy to clean. Fastening Suspension - prepared for suspended installation by using an M8 threaded rod to be provided by the customer. Length of sections RR diffuser components 1-part: Length 500 Length 750 Length 1000 2-part: Length 1500 Length 1750 Length 2000 RR diffuser components with a length of > 1000 mm are produced in two parts and joined in-factory with a connecting sleeve. The dimensions of the dummy pipe are the same as those of the RR diffuser components DBB-RR / KG-RR / DSA- RR / WGA-V-RR. A different length of sections is possible on request. However, the maximum length for a middle or end piece is 1000 mm. 01/18-18

Round Duct Diffuser Model DBB-RR Description The round duct diffuser DBB-RR consists of a round duct with integrated, linear nozzles, which can also be adjusted subsequently by hand, with integrated hit-and-miss damper, which allows the air to be blown absolutely uniformly over the entire diffuser area. The centrally arranged blades in support profile sections ensure that the free cross-section at every blade is the same. As a result, the noise level and pressure are not affected by changing the blade position. In heating mode, this allows a large penetration depth, thus providing an effective, cost-saving heating phase. In cooling mode, the maximum end velocity of jet and temperature difference are reduced to such an extent that no draughts are produced in the occupied zone. During the installation, the round duct diffuser must be mounted in accordance with the desired air direction. The blades and the hit-and-miss damper are positioned on the round duct at 3 o'clock (-3U), 6 o'clock (-6U, standard), 9 o'clock (-9U) or 12 o'clock (0U). This uniform admission allows the round duct diffuser DBB-RR to be installed at any point along the duct system. Model DBB-RR-Z - Supply air model with air deflection blades. DBB-RR-A - Return air model without air deflection blades. DBB-RR-...-3U - horizontal throw right (3 o'clock) DBB-RR-...-6U - vertical throw downward (6 o'clock) (standard) DBB-RR-...-9U - horizontal throw left (9 o'clock) DBB-RR-...-0U - vertical throw upward (12 o'clock) Blade adjustment options Throw directions (blade position 6 o'clock) one-way horizontal (-He) Mounting position, see page 35. Construction Round duct Blades - Plastic, similar to RAL colour 9010 (white) or RAL 9005 (black) - Aluminium painted to the RAL colour of the faceplate. The painted blades cannot be adjusted subsequently. hit-and-miss damper - manufactured from the same material as the round duct - Galvanised sheet steel - stainless steel 1.4301 (V2A) Rubber lip seal - on both sides, made of EPDM. two-way horizontal (-Hb) vertical (-V) crosswise (-K) Attention! We would like to point out that for cleaning stainless steel models, only suitable cleaning materials may be used! 01/18-19

Dimensions DBB-RR-6U Banding from size 500 hit-and-miss damper Air flow direction outside Available sizes NW ød Number of slots along circumference 2 4 6 8 10 12 14 200 198 x x - - - - - 224 222 x x - - - - - 250 248 x x - - - - - 280 278 x x x - - - - 315 313 x x x - - - - 355 353 x x x x - - - 400 398 x x x x - - - 450 448 x x x x - - - 500 498 x x x x x x x All combined lengths and nominal widths available! x = available - = not available Length L Number of slots lengthwise 500 1 750 2 1000 3 1500 4 1750 5 2000 6 1-part 2-part Division of length: see page 18. Detail X Rubber lip seal (-GD) Detail Y Threaded rod on site riveting nut M8 Only applies to suspended installation from the ceiling: prepared for suspended installation from the ceiling by using an M8 threaded rod to be provided by the customer. Technical data For the technical data, please refer to the SCHAKO layout program or the technical documentation Round duct diffuser DBB- RR, register 01, catalogue 1. 01/18-20

Order details Round duct made of Galvanised sheet steel painted to RAL 9010 (white, standard) -St Supply air -Z with blades made of plastic similar to colour RAL 9010 (white) - LW horizontal one-way -He 3 o'clock -3U Round duct diffuser DBB-RR similar to colour RAL 9005 (black) - LS Blade adjustment options (outflow directions) horizontal two-way -Hb Round duct made of Sheet steel galvanised -SV with hit-and-miss damper vertical -V Mounting position 6 o'clock -6U Return air -A without blades made of aluminum painted (to the RAL colour of the round duct) - LA 9 o'clock -9U Round duct made of stainless steel 1.4301 (V2A) -ES crosswise -K 12 o'clock -0U Specification text Round duct diffuser for supply air suitable for connection to DIN ducts. With integrated, manually adjustable air deflection blades in support blade profile form made of plastic, similar to RAL colour 9010 (white), RAL 9005 (black) or aluminium painted to the RAL colour of the round duct (subsequent adjustment of blades not possible). Sound power level and pressure loss remain constant in all blade positions. With integrated hit-and-miss damper for simple air volume regulation and ductwork regulation, made of the material the round duct is made of. With rubber lip seal made of EPDM. Product: SCHAKO type DBB-RR-Z - for return air, without air deflection blades Product: SCHAKO type DBB-RR-A - Round duct made of standard) - Galvanised sheet steel (-SV) (at an extra charge) - Stainless steel 1.4301 (V2A) painted in the colour sand silver (-ES, at an extra charge) - Mounting position - 3 o'clock (-3U) - 6 o'clock (-6U, standard) - 9 o'clock (-9U) - 12 o'clock (-0U) - Blade adjustment options (throw directions) - one-way horizontal (-He) - two-way horizontal (-Hb, standard) - vertical (-V) - crosswise (-K) - Length - 1-part: 500 / 750 / 1000 (-0500/-0750/-1000) - 2-part: 1500 / 1750 / 2000 (-1500/-1750/-2000) 500-0500 Length 1-part 750-0750 1000-1000 1500-1500 Length 2-part 1750-1750 2000-2000 Accessories (at an extra charge): - a RAL colour of your choice NW 200 224 250 280 315 355 400 450 500 Accessories: RAL colour of your choice Unless stated otherwise, the thick-frame model will be delivered. 01/18-21

Round Duct Grille KG-RR Description The round duct grille type KG-RR is suitable for installation in supply or return air systems. The air volume throughput can be regulated by using an integrated hit-and-miss damper. The integrated hit-and-miss damper ensures a uniform distribution of supply air along the whole length of the grille. The round duct grille can be installed at any point of the duct system. The front side horizontal and vertical blades can be adjusted. A divergent air throw pattern can be set. This widens the air jet, supplying a larger area of the occupied zone with fresh air. During the installation, the round duct grille must be mounted in accordance with the desired air direction. The blades and the hit-and-miss damper are positioned on the round duct at 3 o'clock (-3U), 6 o'clock (-6U, standard), 9 o'clock (-9U) or 12 o'clock (0U). Air throw pattern straight Blade adjustment options Throw directions (mounting position 6 o'clock) KG-RR-8 vertical air deflection blades one-way horizontal (-He-..., only KG-RR-8) KG-RR-8 right (-re) diverging left (-li) Mounting position, see page 35. Construction Round duct and blades hit-and-miss damper - manufactured from the same material as the round duct - Galvanised sheet steel - stainless steel 1.4301 (V2A) Rubber lip seal - on both sides, made of EPDM. opposite to one another (-Ge-..., only KG-RR-15) KG-RR-15 vertical straight (-V) KG-RR-8 KG-RR-15 divergent 44 (-D44) (scattered air jet) Model KG-RR-8 KG-RR-15 KG-RR-...-3U KG-RR-...-6U KG-RR-...-9U KG-RR-...-0U - horizontal air deflection blades - vertical air deflection blades - horizontal throw right (3 o'clock) - vertical throw downward (6 o'clock) (standard) - horizontal throw left (9 o'clock) - vertical throw upward (12 o'clock) KG-RR-8 KG-RR-15 divergent 84 (-D84) (scattered air jet) KG-RR-8 KG-RR-15 Attention! We would like to point out that for cleaning stainless steel models, only suitable cleaning materials may be used! The angle of propagation of the air jet and thus the length of throw can be affected by adjusting the vertical air deflection blades. 01/18-22

Correction factor (for scattered air jet) with or without coanda effect Blade position 44 84 End velocity of jet v max (m/s) 0.65 v max (m/s) 0.5 TV = ΔT x / ΔT 0 0.65 0.5 Induction ratio i 1.3 i 2 Jet drop - Jet rise y 1.3 y 2 Grille distance z (m)> x 0.20 x 0.25 Dimensions KG-RR-8-6U Available sizes NW ød Height H 65 115 215 315 200 198 x x - - 224 222 x x - - 250 248 x x x - 280 278 x x x - 315 313 x x x - 355 353 x x x x 400 398 x x x x 450 448 x x x x 500 498 x x x x All combined lengths and nominal widths available! x = available - = not available Banding from NW 500 hit-and-miss damper Length L Number of slots lengthwise Air flow direction outside 1-part 500 1 750 2 1000 3 2-part 1500 4 1750 5 2000 6 KG-RR-15-6U Division of length: see page 18. Detail X Rubber lip seal (-GD) Banding from NW 500 hit-and-miss damper Air flow direction Detail Y out- Threaded rod on site riveting nut M8 Only applies to suspended installation from the ceiling: prepared for suspended installation from the ceiling by using an M8 threaded rod to be provided by the customer. Technical data For the technical data, please refer to the SCHAKO layout program or the technical documentation Round duct diffuser KG- RR, register 01, catalogue 1. 01/18-23

Order details with horizontal Air deflection blades -8 Round duct made of Galvanised sheet steel painted to RAL 9010 (white, standard) -St 3 o'clock -3U Round duct grille Model KG-RR Round duct made of Sheet steel galvanised -SV Mounting position 6 o'clock -6U with vertical Air deflection blades -15 9 o'clock -9U Round duct made of stainless steel 1.4301 (V2A) -ES 12 o'clock -0U Specification text Round duct compact grille type KG-RR-8 for supply and return air for connection to DIN ducts. With integrated, manually adjustable hit-and-miss damper made of galvanised sheet steel or stainless steel V2A (produced of the same material as the round pipe) for air volume regulation. With rubber lip seal made of EP- DM. - With horizontal front side adjustable air deflection blades. Product: SCHAKO type KG-RR-8 - With vertical front side adjustable air deflection blades. Product: SCHAKO type KG-RR-15 - Round duct and blades made of standard) - Galvanised sheet steel (-SV) (at an extra charge) - Stainless steel 1.4301 (-V2A) painted in the colour sand silver (-ES, at an extra charge) horizontal one-way (only KG-RR-8) -He Blade adjustment options (outflow directions) opposite to one another (only KG-RR-15) -Ge vertical straight -V 44 -D44 diverging 84 -D84 - Mounting position - 3 o'clock (-3U) - 6 o'clock (-6U, standard) - 9 o'clock (-9U) - 12 o'clock (-0U) left -li 500-0500 right -re Length 1-part 750-0750 1000-1000 1500-1500 Length 2-part 1750-1750 2000-2000 NW 200 224 250 280 315 355 400 450 500 Accessories: 65-065 115-115 Height 215-215 RAL colour of your choice 315-315 Unless stated otherwise, the thick-frame model will be delivered. - Blade adjustment options (throw directions) - one-way horizontal (-He, only KG-RR-8) - Throw direction to the left (-li) - Throw direction to the right (-re) - opposite to one another (-Ge, only KG-RR-15) - vertical straight (-V) - diverging - 44 (-D44) - 84 (-D48) - Height - 65 (-065) - 115 (-115) - 215 (-215) - 315 (-315) - Length - 1-part: 500 / 750 / 1000 (-0500/-0750/-1000) - 2-part: 1500 / 1750 / 2000 (-1500/-1750/-2000) Accessories (at an extra charge): - a RAL colour of your choice 01/18-24

Round Duct Nozzle Jet Diffuser DSA-RR Description The round duct nozzle jet diffuser type DSA-RR is suitable for installation into supply air systems. The integrated nozzles of the DSA-RR-F version are not adjustable, those of the DSA-RR- V version are adjustable manually and individually. During the installation, the round duct nozzle jet diffuser must be mounted in accordance with the desired air direction. The nozzles and the hit-and-miss damper are positioned on the round duct at 3 o'clock (-3U), 6 o'clock (-6U, standard), 9 o'clock (-9U) or 12 o'clock (0U). A hit-and-miss damper, which ensures that the supply air is discharged uniformly across the whole diffuser area, is integrated into the diffuser. Because of the uniform admission, the round duct nozzle jet diffuser type DSA-RR can be integrated at any point along the duct system. Model DSA-RR-F DSA-RR-V DSA-RR-...-3U DSA-RR-...-6U DSA-RR-...-9U DSA-RR-...-0U - with fixed nozzles - with individually manually adjustable nozzles - horizontal throw right (3 o'clock) - vertical throw downward (6 o'clock) (standard) - horizontal throw left (9 o'clock) - vertical throw upward (12 o'clock) Attention! We would like to point out that for cleaning stainless steel models, only suitable cleaning materials may be used! Mounting position, see page 35. Construction Round duct Nozzles - Plastic, similar to RAL colour 9010 (white, -DW) or RAL 9005 (black, -DS)) hit-and-miss damper - manufactured from the same material as the round duct - Galvanised sheet steel - stainless steel 1.4301 (V2A) Rubber lip seal - on both sides, made of EPDM. 01/18-25

Dimensions DSA-RR-F-6U Detail X Rubber lip seal (-GD) Banding from NW 500 hit-and-miss damper Detail Y Threaded rod on site Air flow direction outside riveting nut M8 DSA-RR-V-6U Only applies to suspended installation from the ceiling: prepared for suspended installation from the ceiling by using an M8 threaded rod to be provided by the customer. Technical data For the technical data, please refer to the SCHAKO layout program nozzle jet diffuser DSA. Technical documentation Round Duct Nozzle Jet Diffuser DSA-RR, register 01, catalogue 1. Banding from NW 500 hit-and-miss damper Air flow direction outside Available sizes NW ød Nozzle rows 1 2 4 200 198 x x - 224 222 x x - 250 248 x x - 280 278 x x - 315 313 x x - 355 353 x x - 400 398 x x x 450 448 x x x 500 498 x x x Length L Number of slots lengthwise 500 1 750 2 1000 3 1500 4 1750 5 2000 6 1-part 2-part Division of length: see page 18. All combined lengths and nominal widths available! x = available - = not available 01/18-26

Order details Round duct nozzle jet diffuser Model DSA-RR with fixed Nozzles -F Round duct made of Galvanised sheet steel painted to RAL 9010 (white, standard) -St Nozzles made of plastic similar to RAL 9010 (white) -DW 500-0500 3 o'clock -3U Length 1-part 750-0750 Mounting position 6 o'clock -6U 1000-1000 with manually individually adjustable nozzles -V 9 o'clock -9U 1500-1500 12 o'clock -0U Length 2-part 1750-1750 2000-2000 NW 200 224 250 280 315 355 400 450 500 Accessories: Round duct made of Sheet steel galvanised -SV Nozzle rows RAL colour of your choice Nozzles made of plastic similar to RAL 9005 (black) -DS -1-2 -4 from NW 200 from NW 400 Round duct made of stainless steel 1.4301 (V2A) -ES Unless stated otherwise, the thick-frame model will be delivered. Specification text Round duct nozzle jet diffuser suitable for supply air, matching connection to DIN ducts. With plastic nozzles, similar to RAL colour 9010 (white, -DW) or RAL 9005 (black, -DS). With integrated, manually adjustable hit-and-miss damper made of galvanised sheet steel or stainless steel V2A (produced of the same material as the round pipe) for air volume regulation. With rubber lip seal made of EPDM. - With fixed nozzles Product: SCHAKO type DSA-RR-F - With individually manually adjustable nozzles. Product: SCHAKO type DSA-RR-V - Round duct made of standard) - Galvanised sheet steel (-SV) (at an extra charge) - Stainless steel 1.4301 (-V2A) painted in the colour sand silver (-ES, at an extra charge) - Nozzle rows - 1 (-1, standard) - 2 (-2, from NW 200) - 4 (-4, from NW 400) - Mounting position - 3 o'clock (-3U) - 6 o'clock (-6U, standard) - 9 o'clock (-9U) - 12 o'clock (-0U) - Length - 1-part: 500 / 750 / 1000 (-0500/-0750/-1000) - 2-part: 1500 / 1750 / 2000 (-1500/-1750/-2000) Accessories (at an extra charge): - a RAL colour of your choice 01/18-27

Long Throw Nozzle Grille with Integrated Round Duct Model WGA-V-RR Description The round duct long-throw nozzle grille WGA-V-RR is suitable for use in supply air installations. The diffuser WGA-V-RR consists of a round duct with integrated, linear long range nozzles, which can also be adjusted by hand on-site. The pivot angle is 45. During the installation, the long-throw nozzle grille with integrated round duct must be mounted in accordance with the desired air direction. The nozzles and the hit-and-miss damper are positioned on the round duct at 3 o'clock (-3U), 6 o'clock (- 6U, standard), 9 o'clock (-9U) or 12 o'clock (0U). A hit-and-miss damper, which ensures that the supply air is discharged uniformly across the whole diffuser area, is integrated into the diffuser. Therefore, the long-throw nozzle grille with integrated round duct WGA-V-RR can be installed at any point along this duct system. Mounting position, see page 35. Construction Round duct Nozzles - Plastic, similar to RAL colour 9010 (white, -DW) or RAL 9005 (black, -DS)) hit-and-miss damper - manufactured from the same material as the round duct - Galvanised sheet steel - stainless steel 1.4301 (V2A) Rubber lip seal - on both sides, made of EPDM. Dimensions WGA-V-RR-6U Detail X Rubber lip seal (-GD) Detail Y Banding from NW 500 Air flow direction Available sizes NW ød Nozzle rows 1 2 200 198 x - 224 222 x - 250 248 x - 280 278 x - 315 313 x - 355 353 x - 400 398 x x 450 448 x x 500 498 x x outside hit-and-miss damper Length L Number of slots lengthwise 500 1 750 2 1000 3 1500 4 1750 5 2000 6 1-part 2-part Division of length: see page 18. Model WGA-V-RR WGA-V-RR-3U WGA-V-RR-6U WGA-V-RR-9U WGA-V-RR-0U - with individually manually adjustable nozzles - horizontal throw right (3 o'clock) - vertical throw downward (6 o'clock) (standard) - horizontal throw left (9 o'clock) - vertical throw upward (12 o'clock) Attention! We would like to point out that for cleaning stainless steel models, only suitable cleaning materials may be used! Threaded rod on site riveting nut M8 Only applies to suspended installation from the ceiling: prepared for suspended installation from the ceiling by using an M8 threaded rod to be provided by Technical data For the technical data, please refer to the SCHAKO layout program Long-throw nozzle grille with integrated round duct WGA- V-RR. Technical documentation Long throw nozzle grille with integrated round duct WGA-V-RR, register 01, catalogue 1. 01/18-28

Order details Long throw nozz.grille w.integ.round duct with individually manually adjustable nozzles WGA-V-RR Round duct made of Galvanised sheet steel painted to RAL 9010 (white, standard) -St Nozzles made of plastic similar to RAL 9010 (white) -DW Round duct made of Sheet steel galvanised -SV Round duct made of stainless steel 1.4301 (V2A) -ES Nozzles made of plastic similar to RAL 9005 (black) -DS Specification text Round duct long range grille suitable for supply air, matching connection to DIN-ducts. With integrated, manually adjustable plastic nozzles similar to RAL colour 9010 (white) or RAL 9005 (black), pivoting range 45. With manually adjustable hit-andmiss damper made of galvanised sheet steel or stainless steel V2A (produced of the same material as the round pipe) for air volume regulation. With rubber lip seal made of EPDM. Product: SCHAKO type WGA-V-RR - Round duct made of standard) - Galvanised sheet steel (-SV) (at an extra charge) - Stainless steel 1.4301 (-V2A) painted in the colour sand silver (-ES, at an extra charge) Nozzle rows -1-2 from NW 400 - Nozzle rows - 1 (-1) - 2 (-2, from NW 400) 3 o'clock -3U Mounting position 6 o'clock -6U 9 o'clock -9U 12 o'clock -0U - Mounting position - 3 o'clock (-3U) - 6 o'clock (-6U, standard) - 9 o'clock (-9U) - 12 o'clock (-0U) 500-0500 Length 1-part 750-0750 1000-1000 1500-1500 Length 2-part 1750-1750 2000-2000 - Length - 1-part: 500 / 750 / 1000 (-0500/-0750/-1000) - 2-part: 1500 / 1750 / 2000 (-1500/-1750/-2000) NW 200 224 250 280 315 355 400 450 500 Accessories: RAL colour of your choice Accessories (at an extra charge): - a RAL colour of your choice Unless stated otherwise, the thick-frame model will be delivered. 01/18-29