Catalog Duct diffuser RRA

Transcription

1 Catalog Duct diffuser RRA

2 Orford Arts Centre, Orford, Canada

3 content RRA model Description, Areas of application and Benefits RRA 1 Configuration RRA 2 Range of application RRA 3 Selecting the quantity of slots RRA 4 Control of the direction of the air jet RRA 5 Diagram Discharge velocity RRA 6 Horizontal discharge course deviation RRA 7 Acoustic power level RRA 8 Pressure loss RRA 9 Example RRA 10 Dimensions and weight RRA 11 Suspension system RRA 12 Specifications RRA 15 Codification RRA 16 Codification of Anchoring System RRA RRA C

4 Munich Airport, Germany

5 Description, Areas of application and Product Benefits RRA The RRA is an exposed duct section linear diffuser designed for the commercial and industrial sectors and for comfort zones. It is perfectly suited to those applications in which functionality must be optimal but must also harmonize with an architectural design. Due to the perfect integration of eccentric cylinders characteristic of NAD Klima technology, the circular RRA diffuser provides a multitude of discharge air directions. All air conditioning and heating situations find an RRA application where esthetics, technical expertise and great comfort combine. Areas of application - Commercial sector - Ventilation of large halls - Office spaces - Entrance halls, atriums - Commercial and industrial spaces - Residential spaces - Buildings with an exposed wooden structure - Agoras Product benefits - Setting for diffused, divergent and vertical air blast, or any other intermediate position - Easy adaptability of airflow to a variety of purposes in the premises - Combination of all forms of air blast possible in one single diffuser - Rapid reduction of velocity and temperature variations due to high induction - Installation at any point of a duct system in different configurations: horizontal, vertical, etc. - Connects with any ductwork or accessory respecting the SMACNA standards - Thermostatic paint finish in colours from the RAL colour chart - Easy to clean finish (with a multifilament brush) - Eliminates need of secondary hookups and traditional diffusers - Eccentric cylinders permitting adjustment of air blast in a range of Possibility of reducing total airflow rate up to 25% in VAV - Possibility of eliminating peripheral heating under certain conditions from the RAL colour chart Subject to technical changes. Version 07 / 06 / RRA 1

6 Configuration Operation of the RRA The RRA duct section linear diffuser can be installed at any point within a system and in any position: vertical, horizontal, etc. The air stream flows through the diffuser in the direction of the length, and the discharge air is intercepted perpendicularly by the lateral blades of the eccentric cylinders. Many duct section linear diffusers can be mounted in a continuous fashion, but the aeraulic balancing must then be completed by accessories and ductwork. Ducts Composition The slots hold eccentric ABS cylinders (black, cream or white) 100 mm in length. The cylinders are equipped with alphanumerical guides permitting the adjustment of the pattern of air diffusion in a 1800 range. The RRA diffuser is fabricated in diameters ranging from 200 mm up to 1419 mm. In order to maintain the circular shape of the ductwork, reinforcement pieces are installed inside all ducts longer than 433 mm. At each extremity, a circular EPDM seal is inserted into a groove to ensure proper sealing when many sections are to be mounted. The RRA diffuser is generally installed in a visible ventilation segment. It is recommended, for reasons of aesthetics among others, to use the same setup and finish for all accessories appearing in this same visible segment. Passive ducts without slots are available in the same sizes as the active RRA ducts. Assembling The RRA diffuser sections are assembled by use of connecting sleeves adapted to the duct's diameter. Accessories All standard RRA accessories (elbows, connecting sleeves, reducers, branches, etc) are available in precise duct sizes. Standard Sleeve (120 mm) (RRA are joined) X = 0 X 120 Special Sleeve ( Spacing between RRA ) X = from 1 mm to 1380 mm X Active duct Bivelled end cap Passive duct Accessories Sleeve Cap Wheel cone Elbows Centric Reducer Eccentric Reducer S Branch W Branch T Branch D Branch Curve 90 Straight RRA Subject to technical changes. Version 16 / 08 / 2012

7 Range of application Maximum Installation Space Air Flow by meter of slot of. RRA V o Height of installation of RRA H Space recommended between RRA X MAXIMUM m 3 /h/m (cfm/li. ft) m (ft) m (ft) (10-22) 3 (10) 5 (16) (22-27) (27-31) (10-15) (15-23) 7 (22) 8 (26) x x x x Cooling only: maintain the maximum X distance according to the height but maintain the air flow per slot meter of m 3 /hm. Balancing Airflow and Positioning Reducers In order to optimize uniform airflow in the RRA diffuser sections, we recommend installation of a reducer after the 5th active section (See 1 following). In order to preserve diameter uniformity of a diffusing section, a balancing damper can be used instead of the reducer after the 5th active section. We also recommend installing a balancing damper, either from the 4th section such as indicated (See 2). 1 x x x x Select the diameter of the conduit by considering a speed of air inlet 5 m/s or 1000 fpm. 2 1 perfored register 2 slot exterior wall of duct RRA eccentric drum section with register Subject to technical changes. Version 16 / 08 / RRA 3

8 Selecting the quantity of slots Selecting the quantity of slots m 3 /h/m (cfm/li.ft) n = number of slots Air flow V. by active slot lengths of 1 m 1500 (269) 1300 (233) (179) 900 (161) (143) 700 (125) 600 (108) (90) (72) (54) (36) (18) (9) 75 active slots lengths of 1 m active slots lengths 75 of 1 ft 2. Air Flow by meter of slot of RRA V 0 m 3 /h/m (cfm/li.ft) Cooling Mode Only, for all Ceiling Heights (10-22) Heating and cooling or cooling only for ceiling heights of 3.0 m. Heating and cooling or heating only for heights of 4.5 m m* (22-27) Heating and cooling or heating only for ceiling heights of 4.5 m m* (27-31) * validate the sound level -If the heating mode to the heights above 3 m can be selected to an initial rate, reduce the length Ls of the slot in accordance with the air flow per meter of recommended slot DN Important : In order to facilitate RRA selection, it is essential to calculate the total airflow rate for active lengths of 1 m. Specifications: Height of base of ductwork: H = 4.00 m. Airflow rate by diffuser: Vo = 520 m 3 /h Cooling: T = - 10 C Heating: T = +10 C Length of RRA: L R = 1500 mm Requirements: 1- Airflow rate per metre of slot section 2- Number of slots n Solution: 1 1-The length of RRA slot is determined as follows: L S = L R mm = 1300 mm The airflow rate is calculated by number of. slot section metres. V o [m 3 /h RRA] X F = V o [m 3 /h/m] 680 [m 3 /h] X 0.77 = 400 [m 3 /h/m] 2 From diagram "Selecting the quantity of slots", for a height of 4 m and for a heating application, we note the number of slots : n = 3 Airflow conversion by 1 meter slot length :.. V o [m 3 /h/m RRA] X F = V o [m 3 /h/m].. V o [cfm/rra] X F = V o [cfm/li.ft.] Lenght of RRA L R Slot lenght L S (mm) [Li.ft.] (800) (900) (1000) (1100) (1200) (1300) (1400) (1500) (1600) (1700) (1800) [2.62] [2.95] [3.28] [3.60] [3.94] [4.27] [4.60] [4.92] [5.25] [5.58] [5.90] Multiplication factor F [0.382] [0.339] [0.305] [0.278] [0.254] [0.235] [0.217] [0.203] [0.190] [0.179] [0.170] L S (ex : 1300) L R (ex : 1500) Standard RRA Subject to technical changes. Version 16 / 08 / 2012

9 Control of the direction of the air jet Controling direction of air blast Due to the various depression zones created by the eccentric cylinder, airflow can be adjusted on the entire 1800 range. (This is illustrated in the following diagram) Application examples slots at 0 Air direction 6 m (20 ft) 6 5 / B C Diffuse 2 1 / 6 5 Diffuse 2 1 / D E Diffuse 1.8 m (6 ft) 3 m (10 ft) B C / E F Diffuse A B / E F Diffuse A B / D E Diffuse 1.8 m (6 ft) 4 m (13 ft) C D Diverging A B - E F Diverging C D Diverging 1.8 m (6 ft) figure A figure B figure C As a result, airflow combinations are virtually infinite. Each project benefits from personalized adjustments made by the manufacturer in the plant. Standard setting for cylinders is as follows: diffused mode on alternating positions 2 1 and 6 5. This setting provides high induction that can be used during heating and cooling modes when high air changeover figures are needed. Figures A and B show the most frequently used settings. On the other hand, the divergent mode allows directing air blasts with more precision. This mode permits the production of a longer thrust of airflow. Specific zones, usually difficult to service, can in this way benefit from personalized settings. Figures C and D illustrate the position of the eccentric cylinder and the corresponding air blast direction discharging from the cylinder. It must be noted that to maximize air projection, multiple air blasts can be oriented in the same direction in order to optimize servicing a zone, even in heating mode. Application examples slots at +90 A B / C D Diffuse figure D All Heights C D / E F Diffuse 1.8 m (6 pi) Diverging 1.8 m (6 pi) 5.4 m (18 pi) 180 (12h) -90 (9 h) Indexing range Volume flow min. max. 0 (6 h) +90 (3 h) Note : Coding faces the air jet Direction of airflow Subject to technical changes. Version 16 / 08 / RRA 5

10 Discharge velocity diagram Airstream pattern (drum position) V max = k1 x V max diagram Diffuse (1 x 2 1 / 1x 6 5) standard 2 3 Diverging (left half right half 6 5) Number of slots n 1 Airflow distance after the blast [m] 2,2 Volume flow V 0 [m3/hm slot] (30) 6 (40) (50) (60) = 0,4 m/s (80 pi/m) Air flow distance x [m] y = 2.2 m y 1.8 m 4 m airflow velocity v max (100) (120) X X X X 8 C 7 Vertical (All C D) y y Vertical penetration depth y max [m] Temperature difference T C C C C RRA Subject to technical changes. Version 16 / 08 / 2012

11 Horizontal discharge course deviation Air Flow V /hm slot Temperature T [ C] number of slots n Vertical deviation y [m] X x[m] y The values of y are valid for the setting "horizontal air blast, diffused". For the setting "horizontal air blast, divergent", the value is to be multiplied by the factor 0.9. Additionnal airflow deviation y as a result of the airflow discharge angle Subject to technical changes. Version 06 / 08 / RRA 7

12 Acoustic power levels diagram 37 figure E 2 Specifications : - Total Airflow : 2080 m³/h - Number of section of RRA : 4 - Number of slot by RRA : 3 - RRA length : L R =1500 mm - Slot length : L S =1300 mm Requirement : - What is the sound power generated L WA? Acoustic power level L WA [db(a)] 1 V 0 [m 3 /h/m slot] drum position CD 1 A or F 6 A B or E F Solution : For determinate the sound power generated by the diffuser RRA, we must first calculate the air flow by meter of slot. From the total airflow, the quantity of section and number of slot by section, we find : (2080 m 3 /h 4 RRA) 3 slots = 173 m 3 /h by slot For a slot length of 1300 mm, calculate the total air flow by meter of slot : 173 m 3 /h X 0.77 = 133m 3 /h/m slot (see page 4) 1 - From the diagram of acoustic power level, we read : L WA diagram = 37 db(a) 2 - The table below and a number of slot n = 3 : L WA = 6.8 db(a) 3 Finaly, the sound power generated is : L WA = L WA diagram + L WA = 43.8 db(a) - 10 db(a) = 33.8 db(a) Number of slot n L R L WA = L WA Diagram + L WA S L R S L R S L R S L WA L WA L WA L WA 3 L R = duct length L S = slot length Standard RRA Subject to technical changes. Version 16 / 08 / 2012

13 Pressure Loss Duct diameter " D " mm (in.) 200 (8) r ΔP duct ΔP * Pressure loss by diameter in elbows = 1.5 L ΔP * Reducer D L ΔP Pressure drop by diameter of regular duct 5 m/s (1000 ppm) Pa / m (" water / 100ft) 1.63 (0.20) m 3.13 D 90 ft 10 m 2.48 D 60 ft 7 m 1.93 D 45 ft 5 m D 0.92** 14 ft d 3** Air flow for slot length of 1 m 3 m /hm (cfm/ft) 50 (9) ΔP drum ΔP Pressure loss for slot length of 1 m (1A/F6) Pa ( " water ) 21 (0.08) 251 (10) 1.31 (0.16) (10) 22 (0.09) 302 (12) 1.06 (0.13) (11) 22 (0.09) 353 (14) 0.82 (0.10) (12) 23 (0.09) 403 (16) 0.73 (0.09) (13) 24 (0.09) 454 (18) 0.65 (0.08) (13) 24 (0.10) 505 (20) 0.57 (0.07) (14) 25 (0.10) 556 (22) 0.49 (0.06) (15) 26 (0.10) 607 (24) 0.41 (0.05) (16) 27 (0.11) 657 (26) 0.41 (0.05) (17) 27 (0.11) 708 (28) 0.37 (0.045) (18) 28 (0.11) 759 (30) 0.37 (0.045) (19) 29 (0.12) 810 (32) 0.33 (0.040) (20) 30 (0.12) 861 (34) 0.29 (0.035) (21) 31 (0.12) 911 (36) 0.29 (0.035) (22) 33 (0.13) 962 (38) 0.24 (0.030) (22) 34 (0.14) 1013 (40) 0.24 (0.030) (23) 35 (0.14) 1064 (42) 0.24 (0.030) (24) 36 (0.14) 1115 (44) 0.20 (0.025) (25) 38 (0.15) 1165 (46) 0.20 (0.025) (26) 39 (0.16) 1216 (48) 0.20 (0.025) (27) 40 (0.16) 1267 (50) 0.16 (0.020) (28) 42 (0.17) 1318 (52) 0.16 (0.020) (29) 43 (0.17) 1369 (54) 0.16 (0.020) (30) 44 (0.18) 1419 (56) 0.16 (0.020) (31) 45 (0.18) *ΔPL Equivalence in lenght of pressure loss ** Based on P = 0.82 Pa/m (0.1 " of water / 100ft) Correction factor for different air velocity in duct : ΔP = F x ΔP (v=1000ppm) Air velocity in duct m/s (ppm) 3 (600) 4 (800) 5 (1000) 6 (1200) 7 (1400) ΔP Pressure drop by diameter in straight duct F ΔP Pressure drop in elbows F ΔP Pressure drop in reducer F Recommended Factor of correction for different adjustments of drums : ΔP = F x ΔP (standard adjustment) Roll adjustment 1 A / F 6 A B / E F C D 2 1 / / 5 4 C D / C D / 2 1 ΔP Pressure loss for slot lenght of 1 m. F Subject to technical changes. Version 16 / 08 / RRA 9

14 Calculation Example 20 m Zone 1 Zone m Total air flow : 1232 m 3 /h (725 cfm) Direction of the air flow 5 m 4 m Total air flow : 4160 m 3 /h (2908 cfm) Data: Air diffusion in two zones Velocity of airflow in duct : Temperature variation: Height of duct: 5 m/s (1000 ppm) T = +10 C 4 m Zone 1: comprising 2 runs of duct Run n 1: - 4 x (active RRA, L = 1500 mm, D = 657 mm ) - airflow rate per RRA: 520 m 3 /h Run n 2: - 1 reducer (657 mm to 505 mm) - 4 x (active RRA, L = 1500 mm, D = 505 mm ) - 1 x (passive RRA, L = 1500 mm, D = 505 mm) - 2 x (90 elbow, D = 505 mm ) - airflow rate per RRA: 520 m 3 /h Zone 2 : comprising 1 run of duct - 1 reducer (505 mm to 302 mm) - 4 x (active RRA, L = 1500 mm, D = 302 mm ) - 1 x (end cap, D = 302 mm) - airflow rate per RRA: 308 m 3 /h Questions: 1. What is the total airflow rate per metre of slot for every zone and the number of corresponding slots? 2. What is the level of sound power L WA? 3. What are the pressure drop of the installation? Solutions : 1. The total airflow rate per metre of slot depends on the rate diffused by RRA Zone 1: for an airflow rate per RRA of 520 m 3 /h 1 and a length of 1500 mm, the airflow rate by metre of slot is calculated thus: 520 m 3 /h x 0.77 = 400 m 3 /h/m. From diagram "Selecting the quantity of slots" on page 4, for a heating mode and a duct height of 4 m, we note the number of slots: n = 3. 2 Zone 2: in the same manner, the airflow rate per metre of slot section is calculated: 308 m 3 /h x 0.77 = 237 m 3 /h/m, we note the number of slots: n = From diagram "Sound Power", an adjustment of eccentric cylinders at 2 1/6 5 (diffused) and 3 slots per RRA: 400 m 3 /h/m 3 = 133m 3 /h/m L WA = L WA DIAGRAM + L WA = = 43.8dB(A) - 10dB(A) = 33.8 db(a) 3 3.The pressure drops of the installation are due to air restriction through the cylinders and to friction of the air along the interior surfaces of the ductwork, linear pieces, elbows and reducers. 3.1Pressure drops at cylinders: from diagram "Pressure Drops"and an airflow rate per metre of slots of 133 m 3 /h/m, we note: P 3.1 = 35 Pa Zone 1, section 1 - The total length of 4 x active RRA of a diameter D = 657 mm is: L = 4 x 1500 mm = 6 m, where: P = 6 m x 0.41 Pa/m = 2.5 Pa Zone 1, section 2 - The total length of 4 x active RRA and 1 x passive RRA of a diameter D = 505 mm is: L = 5 x 1500 mm = 7.5 m, where: P = 7.5 m x 0.57 Pa/m = 4.3 Pa Zone 2 - The total length of 4 x RRA active of diameter D = 302 mm is : L = 4 x 1500 mm = 6 m, where: P = 6 m x 1.06 Pa/m = 6.4 Pa -The total pressure loss of the ducts is: P 3.2 = = 13 Pa 3.3 The pressure loss in reducers. The pressure loss equivalent in length for 2 reducers (α = 14 ) is: P L = 2 x 0.92 m = 1.84 m, where: P 3.3 = 1.82 m x 0.82 Pa/m = 1.5 Pa 3.4 The pressure loss in bends. The pressure loss equivalent in length for 2 90 elbow of a diameter D=505 mm is : P L = 2 x 5.13 m = 10.3 m, where: P 3.4 = 10.3 m x 0.57 Pa/m = 6 Pa Finally, the total pressure loss of the installation is: P 3 = P P P P 3.4 thus: P 3 = 55.5 Pa Note: For an installation height of 4 m, one single circular RRA duct will be sufficient to cover a width of 10 m. -The positioning of the slots at 00 (6 on the clock ) with a cylinder adjustment in A B / E F (diffused) 3.2 Pressure drops per diameter of linear ducts are: without sleeve RRA Subject to technical changes. Version 16 / 08 / 2012

15 Dimensions and Weights Duct lenght - L R Slot lenght - L S Weight per slot (Kg) Weight of the passive RRA (Kg) Diameter of RRA (mm) Sheet thickness : 0.85 mm Sheet thickness : 1.00 mm Standard Subject to technical changes. Version 06 / 08 / RRA 11

16 Suspension System The RRA diffuser is suspended by thread bars supplied by the ventilation contractor (standard suspension method). On demand, thread bar covers in colours matching those of the ductwork are available for a more finished look. Other hanging methods are also available: aluminum track suspension (a method making hanging very easy) and metal cable suspension. These alternative hanging methods are available at NAD Klima. Thread Bar Suspension Rod covers available (optional) Rod covers available (optional) Track Suspension Rails junction Metal Cable Suspension RRA Subject to technical changes. Version 18 / 04 / 2012

17 Library room of the Cegep de Granby

18 Sport Centre Thibault/GM, Sherbrooke, Québec

19 Specifications of the RRA Model 1. Description and Physical Characteristics 1.1 RRA duct diffusers are made of satin-finish steel of mm (22-gauge) for diameters under 508 mm and 1mm (20-gauge) for diameters equal to or over 508 mm. These are designed with slots that house integrated eccentric cylinders in ABS (black, cream or white). Cylinders come equipped with an alphanumerical guide disk designed to allow adjusting airflow diffusion patterns on a range of This same diffuser may be a passive one, that is, without slots and eccentric cylinders. 1.3 Each duct is painted inside with a baked polyester TGIC-base enamel which ensures a smooth easy-to-clean surface. Client or architect may choose among the standard colours of the RAL chart or select other colours on demand. (Painting inside is also available on demand) 1.4 The RRA circular duct diffuser is supplied with diameters ranging from 200 mm to 1419 mm. At each extremity of a RRA diffuser, an EPDM 65 DURO seal is inserted into a groove to ensure proper sealing before the ductwork leaves the plant. The sections of the RRA diffuser are joined together with connecting sleeves. 1.5 In order to optimize uniform airflow in the sections of RRA diffusers, balancing dampers can be installed right on the duct, otherwise reducers must be added between many sections. Dampers are mounted from the fourth section. 1.6 The ductwork has a surface with the smoothest finish possible and connecting joints as fine as possible (less than 3 mm), in order to present an architectural appearance of the highest standard. The diffusers are cleaned simply by using a duster set up on a telescopic aluminum pole, thereby eliminating the use of a maintenance platform or a high stepladder. 1.7 In order to ensure the circular form of the duct and to optimize the smooth exterior finish, metallic support pieces are installed inside the ductwork exceeding 433 mm (17 inches) in diameter. 2. Installation and Suspension Method 2.1 The RRA diffuser is suspended by thread bars supplied by the ventilation contractor. 3. Performance Manufacturer must also demonstrate for approval: 3.1 Performance curves indicating air velocity for the distance travelled, pressure drops and level of sound power generated by the RRA diffuser. 3.2 Simulation of airflow distance while factoring in physical layout of installation and state of comfort in occupied zones, in all three modes, that is, cooling, isothermal and heating. 4. Setting 4.1 Adjusting of eccentric cylinders is individually adapted to each application. This setting allows for comfortable ventilation in all the occupied zone with air velocities acceptable at head height (1.8 m). This setting must be made by manufacturer in the plant. 4.2 Each RRA diffuser is identified by a sticker. This marker carries the RRA section number, the airflow direction, the number of slots, and the setting of the eccentric cylinders. 4.3 In case of changes made to the layout of the premises, resetting the eccentric cylinders remains possible, even after installation of the RRA diffusers, in order to meet the new requirements in airflow diffusion. 4.4 Resetting the eccentric cylinders after installation of circular diffusers is must be implemented using the method proposed by the manufacturer. 5. Balancing 5.1 Balancing of the RRA diffusers must be accomplished by a technician qualified in ventilation system balancing with a certificate of professional competence. 5.2 The technician must be familiar with adjusting eccentric cylinders and with divergent and diffused modes, the data about which are available in our technical documents. 6. Required Quality: NAD Klima, RRA model. 2.2 As an option, thread bar covers in colours matching those of the ducts are available for a more finished look. 2.3 As another option, aluminum track suspension can also be supplied by the manufacturer. The aluminum track is suspended and the RRA diffuser is slid into the track, thus allowing a solution for various types of ceiling structures. The track can be painted to match the colour of the ductwork. 2.4 Another possibility is a metal cable suspension of "aviation cable " type, (7x7 or 7x19) in galvanized or stainless steel (304 or 316), of medium or high traction resistance that can be provided by the manufacturer 2.5 Standard accessories are supplied by the manufacturer (elbows, reducers, branches, etc). Subject to technical changes. Version 07 / 06 / RRA 15

20 Codification for RRA duct diffusers RRA 1000 (800), 1500 (1300), 1800 (1600), 2000 (1800) 200, 251, 303, 353, 403, 454, 505, 553, 607, 657, 708, 759, 810, 861, 913, 962, 1013, 1064, 1115, 1165, 1216, 1267, 1318, 1369, = Passive 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, Product Length L R (L S ) Ø Duct diameter Number of slots 006 = Slots at 0 (6h) 003 = Slots at +90 (3h) 009 = Slots at -90 (9h) 012 = Slots at 180 (12h) 039 = Slots at +90 (3h) and at -90 (9h) 612 = Slots at 0 (6h) and at 180 (12h) AAA = Other (specify in annotation) XXX = Passive duct Slots position ou DE / 21 DVW = Diverging wall BC - 65 DVV = Diverging vertical CD XXX = Passive 9003 = White 9010 = Cream = RAL colours * (write the number of colour) W = White drum (RAL 9003) C = Cream drum (RAL 9010) B = Black drum X = Without drum X = Without damper D = With damper R = With register (perforated plate) S = Standard V = Motorised Airflow pattern/ Rollers adjustment Colour Drums Setting RRA DFS W - X - S Annotation : Example Codification for reducers RRA RED = Reducer Product 203, 254, 305, 356, 406, 457, 508, 559, 610, 660, 711, 762, 813, 864, 914, 965, 1016, 1067, 1118, 1168, 1219, 1270, 1321, 1372, 1422 ØD ød Ø Input size 203, 254, 305, 356, 406, 457, 508, 559, 610, 660, 711, 762, 813, 864, 914, 965, 1016, 1067, 1118, 1168, 1219, 1270, 1321, 1372 T = Flat on Top (standard) E = Equal B = Flat on Bottom T E B S = Standard α = 14 A = Other (specify in annotation) 14 Ø Output size Configuration Length 9003 = White 9010 = Cream = RAL colours * (write the number of colour) Colour RRA - RED T - S Annotation : Example Notes: Blue: Standard size Write the four (4) digit number of the RAL colour chart Our powder paint colours are available in the RAL chart colours only. Metallic colours available upon request RRA Subject to technical changes. Version 16 / 068 / 2012

21 Duct diffuser Codification for elbows RRA ELB = elbow 15, 30, 45, 60, 90, QA QA 203, 254, 305, 356, 406, 457, 508, 559, 610, 660, 711, 762, 813, 864, 914, 965, 1016, 1067, 1118, 1168, 1219, 1270, 1321, 1372, 1422 S = Standard ( based on : r = 1.5D) A = Other ( specify in annotation) 9003 = White 9010 = Cream = RAL colours * (write the number of colour) Product Angle Ø Diameter Radius Colour RRA - ELB S Annotation : Example Codification for the branches RRA BRA = Branch Product 203, 254, 305, 356, 406, 457, 508, 559, 610, 660, 711, 762, 813, 864, 914, 965, 1016, 1067, 1118, 1168, 1219, 1270, 1321, 1372, 1422 ø d ø d ø d ø d Input size - ØD 203, 254, 305, 356, 406, 457, 508, 559, 610, 660, 711, 762, 813, 864, 914, 965, 1016, 1067, 1118, 1168, 1219, 1270, 1321, 1372, 1422 «D» Ø D «T» Ø D Output size - Ød T = «T» Branch D = «D» Branch W = «W» Branch S = Lateral branch ø d ø d ø d Configuration 9003 = White 9010 = Cream = RAL colours * (write the number of colour) «W» Ø D «S» Ø D Colour RRA - BRA T Annotation : Example X Codification for cap, sleeve and wheel cone RRA SLE = Sleeves CAP = End Cap WCO = Wheel Cone BEC = Bivelled End Cap Ø D 120 SLE CAP WCO BEC Product 203, 254, 305, 356, 406, 457, 508, 559, 610, 660, 711, 762, 813, 864, 914, 965, 1016, 1067, 1118, 1168, 1219, 1270, 1321, 1372, 1422 XXXX = Not applicable 0000 = Standard sleeve (distance between RRA is 0 mm) = Special - write the «x» value (distance between RRA)- from 0001 mm to 1380 mm maximum 9003 = White 9010 = Cream = RAL colours * (write the number of colour) Ø Size Length of the sleeve Colour RRA - CAP XXXX Annotation : Example Notes: Write the four (4) digit number of the RAL colour chart Our powder paint colours are available in the RAL chart colours only. Metallic colours available upon request Subject to technical changes. Version 07 / 06 / RRA 17

22 Duct diffuser Anchoring System Codification of additional accessories for anchoring by track Product code RKG Description Set of nylon guides Codification of accessories for anchoring by cable Product code Description of anchors to the ceiling CPA Gated hook with cable adjustment Bright nickel-plated Ø 13 mm X X mm (Ø 1/2" X 2 3/4" X 9/16") Ø 13 mm RKJ RKC RKG Set of plates for connectors Connector : 200 X 28 X 12 mm (7 13/16" X 1/2" X 1 1/16") Plate : 60 mm X 16 mm (2 3/8" X 5/8" ) Set of coupling with bolt and washer Stainless steel 5/16 3/8 Example CPP CPS Flat gripper with cable locking pin and cable adjustment 2 screws (#4 wood) incl. Anodized aluminium only. Ø 40 X ø 15 X 70 mm (Ø 1 5/8" X ø 9/16" X 2 3/4") Beam gripper with cable adjustment and locking pin screw (#4 wood) included Bright nickel-plated 13 X 55 mm (1/2" X 2 3/16") Product code RAI Description Rail Aluminium may be painted (1 1/4" X 1 3/4" X 10 li. ft) CCA Description of anchors to the duct (RRA) Cross-cable gripper with cable adjustment Bright nickel-plated Ø19 X 50 mm (Ø 3/4" X 2") RCT RAI Rod cover may be painted 16 mm X3.05 m (5/8" X 10 ft ) 9003 = White 9010 = Cream = RAL colour * (write the number of colour) XXXX = Unpainted Colour Example CCP CCS Sloped ceiling coupler Bright nickel-plated not ajustable Ø19 X 25 mm (Ø 3/4" X 1") Straigh gripper Bright nickel-plated not ajustable Ø19 X 25 mm (Ø 3/4" X 1") Notes : Write the four (4) digit number of the RAL colour chart Our powder paint colours are available in the RAL chart colours only. Cable : Ø 2.5 mm (3/32 ) 2, 3, 4, 5, 6, 7, 8, 9 meters A = Bright nickel-plated (standard) S = Stainless Steel (optional) Lenght of the cable Fittings Supplied with the Installation on track - Track - Set of nylon guides - Rail connectors - Set of plates for connectors CCS A Example RRA Subject to technical changes. Version 16 / 08 / 2012

23 TVA building, Montréal, Québec

24 NAD Klima 144, Léger street, Sherbrooke (Québec), Canada J1L 1L9 T : F : info@nadklima.com