Engineering and Design Manual

Transcription

1 Engineering and Design Manual 1 Shape/Suspension/Fabric Retention 2 Layout/Fittings 3 Air Dispersion 4 Fabric 5 Appendix DuctSox Corporation 2014 DSDM0114A

2 Table of Contents/Introduction Table of Contents Shape/Suspension/Fabric Retention Shape SkeleCore FTS SkeleCore IHS x1 Hanger x2 Hanger Cable Track Surface Mount Layout/Fittings Design Layout Diameter Selection: Cylindrical Series D-Shape Series - End Inlet D-Shape Series - Top Inlet Quarter-Round Series - End Inlet Quarter-Round Series - Top/Back Inlet Zippers Fittings Air Dispersion Air Flow and Pressure Fabric Orientation Nozzles Orifices Linear Vents Fabric Fabric Options Appendix Sample CAD Details Sample Fabric Porosity Design Sample Linear Vent Design Sample Adjustable Nozzle Design Sample Orifice Design Equipment Specifications AHU Controls Sound Data Critical Environments UnderFloorSox Warranty and Code Compliance Introduction This Engineering and Design Manual will assist you through the design process for DuctSox Fabric Ductwork and Diffuser Systems. The process involves the following key elements. Shape/Suspension/Fabric Retention: Select shape and suspension/fabric retention, including SkeleCore, Hanger, 1,2,or 3 row, or Surface Mount. Layout/Fittings: Select DuctSox location, diameter, lengths, and required fittings. Air Dispersion: Determine location and size of linear vents, nozzles, and/or orifices. Calculate required porosity for air porous fabric used to supply air flow and static pressure. Fabric: Select fabric based on product quality, porosity, color, and/or required air dispersion type. There are also Options that can be added to your DuctSox Systems, such as AFDs and personalization graphics. For more information, go to or call us at

3 Shape Selecting the Shape of a DuctSox System is based on your application needs. DuctSox are available in Cylindrical, D-Shape, or Quarter-Round. 1 Whether horizontal, vertical, or angled, Cylindrical DuctSox are available in a variety of suspension and retention systems. For applications where the DuctSox will be mounted against a flat surface (wall, ceiling, or both), the Surface Mount products (D-Shape and Quarter-Round), feature flexibility for shape, configuration, and inlet position (end, top, back). Shape is also very important when considering what the system will look like when it is deflated. The following illustrations depict the full range of suspension and fabric retention options when they are in the deflated state. They are listed in order from largest change in internal volume (100% decrease/change) to the smallest change in internal volume (0% decrease/change). When AHU is off: 100% Deflation Round D-Shape Quarter-Round 20-10% Deflation Shape/Suspension/Fabric Retention 0% Deflation 1 Row Cable or Track 3 Row Cable or Track 3 x 1 4 x 2 45% Deflation 5-1% Deflation SkeleCore FTS 2 Row Cable or Track SkeleCore IHS D-Shape Quarter-Round 3

4 1Shape/Suspension/Fabric Retention When AHU is off: No Change in Form 100% of fabric is in tension full circumference and length Maximum tensioned section is 42' (12,802mm) Hook Cylindrical Tensioning Ring (CTR): Used at both ends of each tensioned section. Available in diameters from 8 (203mm) to 60 (1524mm) (2 (51mm) increments). CTR 12:00 Hook Detail Gripple Lock CTR Wrench: Used to adjust the CTR and apply tension to the fabric. Direct Hang Cable Drop Hook 4

5 CTR IR IR IR IR IR IR CTR CTR 1 47 (14.33m) Total Example Length (0 m) (1.83m) (3.66m) (5.49m) (7.32m) (9.14m) (10.97m) (12.8m) (14.33m) Top Zipper Tensioned Section Tension Clips Tensioned Section Shape/Suspension/Fabric Retention Intermediate Ring (IR): Used at 6 (1.83m) intervals in the interior of each tensioned section. Available in diameters from 8 (203mm) to 60 (1524mm) (2 (51mm) increments). IR 12:00 Hook Detail Hook Coupler: Used to connect a Spacer Tube to the nonadjustable side of the CTR. Spacer Tube with Push Button: Normally 71 (1803mm) in length to provide 72 (1829mm) of spacing between CTRs and IRs. When this spacing is different, tubes are factory cut and labeled as Cut Tubes. End of tube with push-button is shown. Spacer Tube Coupler: When the last Spacer Tube of a Tensioned Section is longer than 6 (1.83mm), a Spacer Tube Coupler will be installed by the factory to create the correct length. 5

6 1Shape/Suspension/Fabric Retention When AHU is off: Cable Fabric supported radially with internal rings every 5' (1,524mm) 1.5 (38mm) 1-5% Deflation Fabric tensioned at 12 o clock to Cable Glider Attachment Cable Stop 1/8 (3mm) Cable Only Internal Hoops Cable Intermediate Support Type 1 Kit 6

7 When AHU is off: Fabric supported radially with internal rings every 5' (1,524mm) Track (38mm) Hook of Cable Support Track Stop 1-5% Deflation Fabric tensioned at 12 o clock to Track Internal Hoops Shape/Suspension/Fabric Retention U-Track Coupler Quick-Connection and Stud Cable End Glider Attachment U-Track Endcap Aluminum U-Track 7

8 1Shape/Suspension/Fabric Retention 3 x 1 Hanger Cable 3 (76mm) When AHU is off: Fabric connection points at 10, 12 & 2 o clock 17% Deflation Fabric tensioned at 12 o clock to Cable Glider Attachment Cable Intermediate Support 1/8 (3mm) Cable Only Cable Stop D-Ring 3x1 Sizing Reference Table DuctSox Diameter Hanger Width 10 to 12 ( mm) 14 5/8 (371mm) 14 to 16 ( mm) 18 1/8 (460mm) 18 to 20 ( mm) 21 1/2 (546mm) Plugs 22 to 24 ( mm) 25 1/8 (638mm) 26 to 28 ( mm) 28 3/8 (721mm) 30 to 32 ( mm) 31 7/8 (810mm) 34 to 36 ( mm) 35 3/8 (899mm) 38 to 40 ( mm) 39 (991mm) 42 to 44 ( mm) 42 1/2 (1080mm) 46 to 48 ( mm) 46 (1168mm) Type 1 Kit Hanger Width 8

9 When AHU is off: Fabric connection points at 10, 12 & 2 o clock 3 x 1 Hanger Track 1 4 ½ (114.3mm) Hook of Cable Support Quick-Connection and Stud Cable End 17% Deflation Fabric tensioned at 12 o clock to Track J Hook Glider Attachment D-Ring Shape/Suspension/Fabric Retention Plug 3x1 Sizing Reference Table Aluminum U-Track DuctSox Diameter Hanger Width 10 to 12 ( mm) 14 5/8 (371mm) 14 to 16 ( mm) 18 1/8 (460mm) 18 to 20 ( mm) 21 1/2 (546mm) 22 to 24 ( mm) 25 1/8 (638mm) 26 to 28 ( mm) 28 3/8 (721mm) Track Stop 30 to 32 ( mm) 31 7/8 (810mm) 34 to 36 ( mm) 35 3/8 (899mm) 38 to 40 ( mm) 39 (991mm) 42 to 44 ( mm) 42 1/2 (1080mm) 46 to 48 ( mm) 46 (1168mm) U-Track Endcap Hanger Width 9

10 1Shape/Suspension/Fabric Retention 4 x 2 Hanger Cable A 1 (25mm) When AHU is off: Fabric connection points at 10, 11, 1 & 2 o clock 12% Deflation Fabric tensioned at 11&1 o clock to Cable Cable Intermediate Support Glider Attachment Cable Stop 1/8 (3mm) Cable Only Plug D-Ring Type 1 Kit DuctSox Diameter 50 to 52 ( mm) 54 to 56 ( mm) 58 to 60 ( mm) 4x2 Sizing Reference Table A (distance between each cable) 19 5/8 (498mm) 20 3/8 (518mm) 21 (533mm) A Hanger Width 1" (25 mm) 49 3/8 (1254mm) 52 7/8 (1343mm) 56 3/8 (1432mm) Hanger Width 10

11 When AHU is off: Fabric connection points at 10, 11, 1 & 2 o clock 12% Deflation A 2 1 / 2 (64mm) 4 x 2 Hanger Track 1 Hook of Cable Support Quick-Connection and Stud Cable End Fabric tensioned at 11&1 o clock to Track Track Stop Glider Attachment J Hook Shape/Suspension/Fabric Retention Plug D-Ring DuctSox Diameter 50 to 52 ( mm) 54 to 56 ( mm) 58 to 60 ( mm) 4x2 Sizing Reference Table A (distance between each track) 19 5/8 (498mm) 20 3/8 (518mm) 21 (533mm) A Hanger Width 1" (25 mm) 49 3/8 (1254mm) 52 7/8 (1343mm) 56 3/8 (1432mm) U-Track Endcap Aluminum U-Track Hanger Width 11

12 1Shape/Suspension/Fabric Retention Cable When AHU is off: 100% Deflation Fabric tensioned at 12 o clock to Cable 45% Deflation 17% Deflation Tensioned at 12 & 2 o clock to Cable Tensioned at 10, 12 & 2 o clock to Cable One Row Cable Two Row Cable Three Row Cable A A 1.5 (38mm) 1.5 (38mm) B B Diameter (inches) A (inches) Two Row Cable B (inches) Diameter (mm) A (mm) B (mm) Diameter (inches) A (inches) Three Row Cable B (inches) Diameter (mm) A (mm) B (mm)

13 When AHU is off: Track 1 Diameter (inches) Fabric tensioned at 12 o clock to Track One Row Track Two Row Track Three Row Track A (inches) 100% Deflation Two Row Track B (inches) 1.5 (38mm) Diameter (mm) A (mm) B (mm) A 45% Deflation 17% Deflation Tensioned at 12 & 2 o clock to Track B Diameter (inches) A (inches) Three Row Track B (inches) Tensioned at 10, 12 & 2 o clock to Track Diameter (mm) A (mm) B (mm) A 1.5 (38mm) B Shape/Suspension/Fabric Retention 13

14 1Shape/Suspension/Fabric Retention Surface Mount D-Shape Top Inlet Aluminum C-Track Angle Bracket When AHU is off: D-Shape 1-5% Deflation Inlet Collar, DuctBelt, DuctBuckle, and Zipper for Easy Detachment 2 Row C-Track at 3 & 9 o clock Angle Bracket Tension Cleat (Hidden) Air Distribution (as specified) Cord-In Attachment Coupler T-Bar Ceiling Clips (optional) Tension Cleat End Inlet Aluminum C-Track Air Distribution (as specified) Cord-In Attachment Inlet Collar, DuctBelt, DuctBuckle, and Zipper for Easy Detachment Aluminum C-Track Quarter-Round When AHU is off: Top or Side Inlet Quarter Round 1-5% Deflation Tension Cleat (Hidden) Inlet Collar on Top or Back Coupler Inlet Collar, DuctBelt, and DuctBuckle 2 Row C-Track at 3 & 6 o clock Air Distribution (as specified) Cord-In Attachment Tension Cleat T-Bar Ceiling Clips (optional) Aluminum C-Track Cord-In Attachment End Inlet Inlet Collar, DuctBelt, and DuctBuckle 14

15 Design Layout Layout A DuctSox System performs as both a duct and a diffuser. The system layout should target the general air dispersion required, whether uniform dispersion or directed delivery. With the unlimited custom design capabilities, there could be several solutions to any given application. Simple and Economical Even Distribution 2 Even Dispersion, Side AHU Location Targeted Airflow to Ends (Windows) Layout/Fittings Notes Because air outlets can be integrated into all sections, system design may vary significantly while still providing excellent air dispersion. Size and orientation of air outlets may allow for a simple and less costly layout than sheet metal designs. There is seldom a need to reduce diameter or increase flow rates along straight lengths since the system works off the basic extended plenum principle. When restriction in the DuctSox System is needed for proper air distribution, an Adjustable Flow Device (AFD) should be included. Prior to production, all shop drawings must be approved. 15

16 2Layout/Fittings Diameter Selection Cylindrical Series The DuctSox system diameter is based on the airflow rate and inlet conditions at the beginning of the fabric system. 1. First, find the column with the maximum Inlet Velocity you would like to stay under considering the following guidelines. DIA = [(cfm x 4 x 144) / (Pi x Inlet Vel.)]^0.5 1,000 fpm (5.1 m/s) Maximum: Applications that are noise-sensitive 1,400 fpm (7.1 m/s) Maximum: With Fittings 1,600 fpm (8.1 m/s) Maximum: Straight Run 2,000 fpm (10.2 m/s) Maximum: SkeleCore FTS (please consult the DuctSox design team) 2. Then, move down that column until you find the airflow rate that just exceeds the rate for your system. 3. And finally, move to the left in that row and your minimum DuctSox diameter will be indicated in-line with your rate. 4. If the required diameter is too large for the space, consider splitting the airflow into multiple runs. Inlet Velocity Diameter 1000 fpm 5.1 m/s 1200 fpm 6.1 m/s 1400 fpm 7.1 m/s 1600 fpm 8.1 m/s 2000 fpm 10.2 m/s inches mm CFM L/sec CFM L/sec CFM L/sec CFM L/sec CFM L/sec

17 Diameter Selection D-Shape Series - End Inlet Choosing D-Shape Inlet and system diameters are slightly different than standard Cylindrical DuctSox. 1. Select Inlet configuration: End Inlet or Top Inlet (for Top Inlets continue on the next page) 2. Determine the airflow rate through the End Inlet. 3. Use Table below to determine Inlet diameter as a round cross section (not as a D cross-section). a) First, find the column with the maximum Inlet Velocity you would like to stay under considering the following guidelines. 1,000 fpm (5.1 m/s) Maximum: Applications that are noise-sensitive 1,400 fpm (7.1 m/s) Maximum: System with Fittings 1,600 fpm (8.1 m/s) Maximum: Straight Run b) Then, move down that column until you find the airflow rate that just exceeds the rate for your system. c) And finally, move to the left in that row and your D-Shape size (d= diameter, r= radius)diameter will be indicated in-line with your rate. 4. If a Round to D-Shape Transition is required, use the table below to determine the round diameter. By knowing the required End Inlet D-Shape diameter, move to the left in the Table to find the corresponding Round Inlet Transition diameter. d r 2 Layout/Fittings Round Inlet D-Shape Maximum Inlet Velocity Transition Dia. Size inches mm inches mm 1000 fpm 5.1 m/s 1200 fpm 6.1 m/s 1400 fpm 7.1 m/s 1600 fpm 8.1 m/s (d x r) (d x r) CFM L/s CFM L/s CFM L/s CFM L/s x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x

18 2Layout/Fittings Diameter Selection D-Shape Series - Top Inlet Choosing D-Shape Inlet and system diameters are slightly different than standard Cylindrical DuctSox. 1. Select Inlet configuration: End Inlet or Top Inlet (for End Inlets see previous page) 2. Determine the airflow rate through the Top Inlet. (If there could be multiple Top Inlets feeding a D-Shape Series DuctSox system or if the Top Inlet is not in the middle of the length of the system, please contact the DuctSox factory design team.) 3. Use the table below to determine Inlet diameter. a) First, find the column noting the maximum Inlet Velocity for Top Inlet systems - 1,000 fpm (5.1 m/s) Maximum b) Then, move down that column until you find the airflow rate that just exceeds the rate for your system. c) And finally, move to the left in that row and your minimum D-Shape diameter will be indicated in-line with your rate. d r 4. Use table below to determine the minimum Top Inlet diameter knowing the required D-Shape size. Top Inlet D-Shape Maximum Diameter Size Inlet Velocity inches mm inches mm 1000 fpm 5.1 m/s (d x r) (d x r) CFM L/s x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x

19 Quarter-Round Series - End Inlet Diameter Selection Choosing Quarter-Round Inlet and system diameters are slightly different than standard Cylindrical DuctSox. 1. Select Inlet configuration: End Inlet or Top/Back Inlet (for Top/Back Inlets continue on the next page) 2. Determine the airflow rate through the End Inlet. 3. Use the table below to determine Inlet diameter as a round cross-section (not as a Quarter-Round cross-section). a) First, find the column with the maximum Inlet Velocity you would like to stay under considering the following guidelines. 1,000 fpm (5.1 m/s) Maximum: Applications that are noise-sensitive 1,400 fpm (7.1 m/s) Maximum: System with Fittings 1,600 fpm (8.1 m/s) Maximum: Straight Run b) Then, move down that column until you find the airflow rate that just exceeds the rate for your system. c) And finally, move to the left in that row and your minimum Quarter-Round size (quarter circle cross-section) will be indicated in-line with your rate. 4. Use table below to determine the minimum End Inlet diameter knowing the required Quarter-Round size. r r 2 Layout/Fittings End Inlet Quarter-Round Maximum Inlet Velocity Diameter Size inches mm inches mm 1000 fpm 5.1 m/s 1200 fpm 6.1 m/s 1400 fpm 7.1 m/s 1600 fpm 8.1 m/s (r x r) (r x r) CFM L/s CFM L/s CFM L/s CFM L/s x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x

20 2Layout/Fittings Diameter Selection Quarter-Round Series - Top/Back Inlet Choosing Quarter-Round Inlet and system diameters are slightly different than standard Cylindrical DuctSox. 1. Select Inlet configuration: End Inlet or Top/Back Inlet (for End Inlets see previous page) 2. Determine the airflow rate through each Top/Back Inlet. (If there will be multiple Top/Back Inlets feeding a Quarter-Round Series DuctSox system, or if the Top/Back is not in the middle of the length of the system, please contact the DuctSox factory design team.) 3. Use the table below to determine Inlet diameter. a) First, find the column noting the maximum Inlet Velocity for Top Inlet systems - 1,000 fpm (5.1 m/s) Maximum b) Then, move down that column until you find the airflow rate that just exceeds the rate for your system. c) And finally, move to the left in that row and your minimum Quarter- Round size will be indicated in-line with your rate. 4. Use the table below to determine the minimum Top/Back Inlet diameter knowing the required Quarter-Round size. r r Top/Back Inlet Diameter Quarter-Round Size Maximum Inlet Velocity inches mm inches mm 1000 fpm 5.1 m/s (r x r) (r x r) CFM L/s x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x

21 Zippers Straight lengths and fittings are connected together with a zipper. The zipper is affixed with the start/stop located at the top center and each includes a 2 (51mm) fabric overlap to conceal the zipper. SkeleCore FTS zippers are located every 21 ft (6400 mm) or less. If a straight run is 60 ft (18288 mm), the first two sections would be 21 ft (6400 mm) and the last would be 18 ft (5486 mm). SkeleCore IHS zippers are located every 20 ft (6096 mm) or less. If a straight run is 58 ft (17678 mm), the first two sections would be 20 ft (6096 mm) and the last would be 18 ft (5486 mm). The following table indicates maximum sectional length of a standard straight run. Longer sections are broken into equal lengths: 60 ft (18.3m) of 36 in (914mm) diameter would be constructed of two 30 ft (9.1m) long sections. 2 Cylindrical D-Shape Quarter-Round Diameter Diameter Diameter Max Length inches mm inches mm inches mm ft m Layout/Fittings To allow for variability in system layout, we offer many common fittings in fabric with simple zipper connections. 21

22 2Layout/Fittings Fittings Not every application is a straight run of DuctSox. To accommodate this, we offer a variety of standard fittings. We also offer custom fitting configurations. Radius Elbows The standard centerline radius of an elbow is1.5x diameter. The number of gores and size depends on the angle of the elbow. Custom elbows are available upon request. Elbows can also be rotated for offsets/ elevation changes to accommodate more complicated systems. Transitions Simple reducing transitions are available in Concentric, Flat-on-Top, or Flat-on-Bottom configurations. Each transition fitting includes a zipper on each end. Their length ranges between ( mm) (based on the change in diameter). Take-Off (Ts) and Crosses Efficiency take-off fittings direct air to areas perpendicular to the main run (shown below in Flat-on-Top, Flat-on-Bottom and Concentric options). The branch duct requires a zipper for attachment. For better airflow management, branch ducts should be positioned at least 1x the outlet diameter from the endcaps. For example, a 24 (610 mm) branch would be centered on a measurement 24 (610 mm) from the endcap (in this case the edge of the branch would be 12 (305 mm) from the endcap). RADIUS ELBOWS 30º 45º 60º 90º TRANSITIONS Flat-on-Top Concentric Flat-on-Bottom Round to D-Shape TAKE-OFFS (Ts) Flat-on-Top Concentric Flat-on-Bottom CROSSES Flat-on-Top Concentric Flat-on-Bottom 22

23 Internal Textile Air Dispersion System Pressure Air Flow and Pressure Metal ducts are commonly designed with either the Equal Friction or Static Regain method. Extended Plenum concept is the best approach for textile air dispersion systems that include uniform duct diameters and evenly dispersed airflow. This method best models pressure and air dispersion within textile air dispersion systems due to the constant diameter of the duct size. Using a constant duct diameter assists in installation and aesthetics. Proper design methods can allow the designer to model pressure at any point within a textile air dispersion system. The design process can be simplified by breaking down airflow and air pressure into three components: Inlet Static Pressure, Static Pressure Regain, and Friction Loss Inlet Static Pressure (ISP) The largest and most critical component to the operating pressure of a textile air dispersion system is the Inlet Static Pressure (ISP). This is the static pressure available at the inlet of the dispersion system or metal-to-fabric connection. In most cases, the ISP is not the External Static Pressure of the fan or unit due to fittings and duct between the textile air dispersion system and the outlet of the fan or unit. Static Pressure Regain (SPR) As air is being dispersed to the space, phenomenon of static regain occurs along the entire length of the dispersion system. As air is dipersed, the velocity within the duct decreases and Velocity Pressure (VP) decreases. The VP is kinetic energy and slowly changes form to a useful potential energy, or SPR, as the remaining air travels down the constant diameter duct. SPR is equal to the VP at the inlet: 3 SPR = Inlet Velocity Pressure = ( Inlet Velocity / 4005 ) 2 Inlet Velocity is fpm and SPR is inches w.g....i-p SPR = Inlet Velocity Pressure = ( Inlet Velocity / ) 2 Inlet Velocity is m/s and SPR is Pa...SI Air Dispersion 23

24 3Air Dispersion Friction Loss (FL) Similar to metal ducts, textile air dispersion systems have frictional loss (FL) along straight sections of duct and fittings. The losses, however, are much less than a traditional metal layout with duct diameters that decrease with reducing transitions due to lower overall duct air velocitites. FL is directly related to the duct diameter and duct velocity. As the air is dispersed along the constant diameter duct length, the duct velocity decreases and thus the FL decreases. Straight Friction Loss To estimate FL of an incremental section of a textile air dispersion system that is uniformly dispersing 100% of the inlet air throughout its length, use the following steps: 1. Find the FL of the straight section of duct with 100% of airflow passing through the entire length. An air duct calculator (Ductulator), the ASHRAE Duct Fitting Database, or commonly used equations for metal duct in the ASHRAE Fundamentals handbook, chapter 21: Duct Design, can be used. [Textile Air Dispersion System Absolute Roughness e = ft (0.11 mm), Textile Air Dispersion system with SkeleCore FTS internal frame Absolute Roughness e = ft (1.69 mm)] 2. Multiply the calculated FL for a duct with 100% conveyance by a factor of 0.35 to find the FL for a system that disperses100% of the incoming air. 35% of the FL is a close approximation to convert the FL of a duct with zero air dispersion to a duct that has 100% uniform air dispersion. For example, a 24 (610 mm) diameter duct conveying 5025 cfm (2371 L/s) of air will have a friction loss of 0.06 w.g. (15 Pa) per 50 (15m) of duct. A textile air dispersion system that is equally dispersing all of the air over 50 (15m) would have a friction loss of approximately w.g. (5Pa). That same dispersion system with the SkeleCore FTS has a friction loss of approximately w.g. (9Pa). Fitting Friction Loss The Friction Loss of DuctSox fabric fittings can be best estimated by selecting the closest match of metal fittings from the ASHRAE Duct Fitting Database and using that pressure loss. The AFD Friction Loss, when used to balance out the effects of static regain, needs to be estimated by multiplying the SPR by 0.5. So, if your system being designed has an Inlet Velocity of 1400 fpm (7.1 m/s), then the SPR is equal to (1400/4005) 2 = 0.12 w.g. [(7.1/1.291) 2 = 30 Pa]. The estimated FL for the AFD is then 0.12/2 = 0.06 w.g. (30/2 =15 Pa) 24

25 Textile Air Dispersion System Design Pressure Calculation The Average Pressure (AP) is the average static pressure from inlet to endcap and is utilized for calculating the air dispersion through fabric, linear vents, nozzles and orifices. The AP of a fabric duct with equal air dispersion can be approximated by the equation: AP = ISP +.65 * (VP FL) If the ISP and SPR are added and FL subtracted, the resulting number will be the accumulated static pressure at the endcap. In most cases, the maximum static pressure of the system: Adjustable Flow Device (AFD) Endcap SP = Maximum SP = ISP + SPR - FL AFD devices come standard with Sedona-Xm and TufTex Systems. The AFD is an option with other fabrics. Plenum Direct airflow into branch take-offs where velocity is over 1,200 FPM (6.01m/s). All AFD s are pre-set from the factory and should not require field balancing. The inlet AFD can be adjusted for airflow turbulence. Inlet Cinch to use as flow straightener or balance airflow. All systems with >1,200 FPM (6.01m/s) inlet velocity. Middle Balances static regain. All systems with an intermediate zipper over 40' (12,192mm) and >1,200 FPM (6.01m/s) inlet velocity. No Pop Reduces inflation pop. Single AFD located in last 30% of long run, included for all systems over 100' (30,480mm) and over 5,000 CFM (2,360L/s). (Typically, systems should not include more than two AFDs in sequence to an endcap.) 3 Air Dispersion 25

26 3Air Dispersion Fabric Air Porous Fabric Air passes through the fabric and is controlled by the fabric weave and internal static pressure. This results in air velocities on the surface of the product from FPM ( m/s). This option is most commonly an alternative to exposed double wall duct. Ideal for cooling only, food processing, displacement ventilation, or air sensitive environments. Benefits No condensation Reduced dust on top No heat gain/loss Reduced air throw Limitations Long lengths may disperse too much airflow through fabric Note: Dirt from poorly filtered supply air may migrate through weave of air porous fabrics eventually discoloring light color fabrics. Filtration efficiency of 50% or greater plus a regular maintenance plan will reduce effects. Non-Porous Fabric No air passes through the fabric weave. This option is most commonly an alternate to exposed single wall duct/diffusers. Benefits Used with Nozzles, Linear Vents, and Orifices Limitations Dust on Top Risk of Condensation Note: Dirt does not pass through and stain non-porous fabric. Fabric Airflow If the design includes a porous fabric, this airflow can be calculated using the following equations: Q Fabric = FP x SA x (AP/.5) (CFM) FP = Fabric Porosity (rated) (CFM/ft 2 ) Fabric Porosity (FP) (CFM/ft 0.5 w.g) ((L/s)/m Pa) SA = Surface Area (all fabric) (ft 2) AP = Average Pressure (inch w.g.) Q Fabric = FP x SA x (AP/124.42) (L/s) FP = Fabric Porosity (rated) ((L/s)/m 2 ) SA = Surface Area (all fabric) (m 2 ) AP = Average Pressure (Pa) Sedona-Xm TufTex 0 0 Verona DuraTex 0 0 Microbe-X 6, 13, , 66, 147 Stat-X Rx 29, 55, 100, , 279.4, 508, UFSox

27 Throw: Directional Airflow Orientation Because each DuctSox system is 100% custom made, there is unlimited flexibility in designing the locations of the vents in nozzles, or orifices. Some of the options when designing outlet orientations are: 4&8, 5&7, and 6 o clock Primarily chosen for applications with heating and/or cooling, but can also be used for ventilating. These orientations direct the exiting air downward and/or outward from the DuctSox. Throw requirements can be critical in these locations because the air is delivered more directly towards the occupied space. To calculate throw, use the distance between the bottom of the DuctSox System and the distance above the floor using the following equations: 4&8 o clock: (Height 6ft(1.83m)) x 2.00 = Throw required 5&7 o clock: (Height 6ft(1.83m)) x 1.16 = Throw required 6 o clock: (Height 6ft(1.83m)) x 1.00 = Throw required Note: Additional unique outlet orientations and patterns are available upon request. Please contact the DuctSox factory design team 11&1, 10&2, and 3&9 o clock Primarily chosen for only cooling or ventilating, these orientations either direct the exiting air upward and/ or outward from the DuctSox. Throw requirements focus on reaching the exterior walls or filling the gaps between parallel runs. 3 Air Dispersion Orientation from inlet of DuctSox with airflow hitting you in the back of the head 27

28 3Air Dispersion Nozzles Nozzle Design Select Nozzle size and characteristics based on throw that best fits the environment. 2 Adjustable Nozzle Adjustable Nozzles can be adjusted to several positions pointing airflow in a desired location, or can be completely closed off. The benefits include: Provide jet-type airflow and are a common choice for spot cooling, heating, or ventilating. Beneficial for controlling condensation issues. Type, location, and quantity based on airflow requirements. Ideal for many applications, including aquatics (direct air towards corner windows), industrial (spot cooling), retail (direct air away from hanging signs), or supermarkets (direct air away from open freezer cases). Directional airflow or closed. Direct air as needed to control condensation issues or improve employee comfort. Adjustability of Throw 360 degree rotation 10 different angle settings, including a closed setting Throw Values for a Single Adjustable Nozzle 80 (24.4) 70 (21.4) Distance FT (m) 60 (18.3) 50 (15.3) 40 (12.2) 30 (9.2) 20 (6.1) 10 (3.1) 50 (0.25) Velocity FPM (m/s) 100 (0.51) Velocity FPM (m/s) 150 (0.76) Velocity FPM (m/s) (62) 0.50 (124) 0.75 (187) 1.00 (249) 1.25 (311) Static Pressure w.g. (Pa) Average Throw Airflow Pressure 150 FPM 0.76 m/s 100 FPM 0.51 m/s 50 FPM 0.25 m/s in w.g Pa CFM L/s ft m ft m ft m

29 Fixed Nozzles The benefits include: Provide jet-type airflow and are a common choice for spot cooling, heating, or ventilating. Provide a constant flow of air or can be closed off. Type, location, and quantity based on airflow requirements. Aftermarket plugs are available to cap off the airflow. Provides constant airflow or cap to close. Side View Top View Distance FT (m) Throw Values for a Single Fixed Nozzle 30 (9.2) 25 (7.6) 20 (6.1) 15 (4.6) 10 (3.1) 5 (1.5) (62) 0.50 (124) 0.75 (187) Static Pressure w.g. (Pa) 50 (0.25) Velocity FPM (m/s) 100 (0.51) Velocity FPM (m/s) 150 (0.76) Velocity FPM (m/s) 1.00 (249) 3 Air Dispersion Average Throw Airflow Pressure 150 FPM 0.76 m/s 100 FPM 0.51 m/s 50 FPM 0.25 m/s in w.g Pa CFM L/s ft m ft m ft m

30 3Air Dispersion Orifices Orifice Design Select orifice size and orientation based on throw that best fits the environment. Lower pressures result in improved efficiency, lower noise, and extended service life. To calculate the total number of orifices, divide airflow volume by the airflow per orifice (listed CFM). NOTE: SG Diffusers for Sedona-Xm and Verona are only available in 2 (51mm) (SG2) and 3 (76mm) (SG3) diameters. Orifice Spacing Unless customized spacing is required, the orifice spacing is determined by evenly spacing the orifices along the length of the DuctSox system. All systems include a standard 4 ft (1.23m) void (no orifices) near the beginning. If there are too many orifices to fit within the length, then an alternating orifice pattern may have to be chosen. Orifice Size AP Airflow Terminal Velocity 150 FPM 0.8 m/s 100 FPM 0.5 m/s 50 FPM 0.3 m/s inches mm in w.g Pa CFM/ft. (L/s)/m ft m ft m ft m SG SG

31 Linear Vent Design Linear Vents Linear Vents were developed as a low maintenance vent option. The hole patterns grow larger as vent size increases. Available in 1 CFM/lnft (1.55 (L/s)/m) increments for maximum accuracy. 1. Calculate airflow through fabric (as shown on page 25) 2. Calculate total vent size (TVS) 3. Select vent sizes (VS + VS = TVS) 4. Specify vent orientation Q vent = Q Total - Q Fabric I-P version: Q Vent TVS = (Length) x (AP/0.5) SI version: Q Vent TVS = (Length) x (AP/124.42) I-P and SI version: TVS = (VS1+VS2+...) Key: Length (FT)(m) AP (inch w.g.)(pa) Q vent (CFM)(L/s) Example: TVS = 100 cfm/ft (154.8(L/s)/m) Vent Sizes: = 100 cfm/ft ( = 154.8(L/s)/m) Terminal Velocity Vent Size AP Airflow 150 FPM 0.8 m/s 100 FPM 0.5 m/s 50 FPM 0.3 m/s CFM/ft (L/s)/m in w.g. Pa CFM/ft (L/s)/m ft m ft m ft m Air Dispersion 31

32 Fabric Options Fabric Type Specifications Colors Other TM Sedona-Xm Weave: Fire Retardant Polyester, Filament/Filament Twill 55% Recycled Content Weight: 6.8 oz/yd 2 (231g/m 2 ) Porosity: 2 CFM/ft 0.5" w.g. (10.2L/s/m 125Pa) Classified by Underwriters Laboratories in accordance with the requirements of NFPA 90A and UL 2518 TM TufTex Weave: Fire Retardant Polyester, Plain Weave, Coated Weight: 8.2 oz/yd 2 (278g/m 2 ) Porosity: None Classified by Underwriters Laboratories in accordance with the requirements of NFPA 90A and UL 2518 TM Verona Weave: Fire Retardant Polyester, Filament/Filament Twill Weight: 6.2 oz/yd 2 (210g/m 2 ) Porosity: 2 CFM/ft 0.5" w.g. (10.2L/s/m 125Pa) Classified by Underwriters Laboratories in accordance with the requirements of NFPA 90A and UL 2518; UL-C (Canada); BS 5867 Part 2, 1980; GB B Air Porous Premium Fabric Active Antimicrobial Linear Vents, Nozzles, or Orifices Non-Porous Premium Fabric Linear Vents or Orifices Air Porous Commercial Fabric Linear Vents, Nozzles, or Orifices Fabric 4 TM DuraTex Weave: Fire Retardant Polyester, Plain Weave, Coated Weight: 5.5 oz/yd 2 (186g/m 2 ) Porosity: None Classified by Underwriters Laboratories in accordance with the requirements of NFPA 90A and UL 2518; also available (by request only) to meet BS 5867 Part 2, 1980 TM Microbe-X Weave: Fire Retardant Polyester, Filament/Filament Twill Weight: 6 & 13: 6.9 oz/yd 2 (234g/m 2 ) 29: 6.2 oz/yd 2 (210g/m 2 ) Porosity: 6, 13, 29 CFM/ft 0.5" w.g. (30.5, 66, 147L/s/m 125Pa) Classified by Underwriters Laboratories in accordance with the requirements of NFPA 90A and UL 2518 TM Stat-X Weave: Filament Polyester with Interwoven ESD Yarns Weight: 2.9 oz/yd 2 (98g/m 2 ) Porosity: 2.5 CFM/ft 0.5" w.g. (12.7L/s/m 125Pa) Classified by Underwriters Laboratories in accordance with the requirements of NFPA 90A and UL 2518; UL-C (Canada) Rx TM Fabric: Rx200 TM, Rx100 TM, Rx50 TM, Rx25 TM Weave: Fire Retardant Polyester, Filament, Non-Linting Up to 50% Recycled Content Weight: Rx200: 5.4 oz/yd 2 (183g/m 2 ) Rx100: 5.5 oz/yd 2 (186g/m 2 ) Rx50: 6.3 oz/yd 2 (214g/m 2 ) RX25: 7.1 oz/yd 2 (241g/m 2 ) Classified by Underwriters Laboratories in accordance with the requirements of NFPA 90A; Rx50 and Rx25 are also classified by Underwriters Laboratories in accordance with the requirements of UL 2518 Standard Fabric Colors DuctSox offers seven standard colors for Sedona-Xm, TufTex, and Verona. DuraTex is also available in these colors except green and red. Custom Colors and Patterns are available on some fabrics, but may require a premium charge and additional lead time. Specialty Fabric Colors These fabrics are only available in specific color types and patterns. Microbe-X, White (Custom colors available) Non-Porous Commercial Fabric Linear Vents, Nozzles, or Orifices Air Porous Specialty Fabric Non-Leaching, Permanent Antimicrobial Linear Vents Air Porous Static Dissipative Specialty Fabric Linear Vents or Nozzles Air Porous Specialty Fabric LabSox: D-Fuser or Traditional Models Active Antimicrobial Surround Flow or Select Flow Linear Vents Stat-X, White Black Silver White Tan Blue Stat-X, Light Blue Rx, White Green Red Custom Colors Patterns NOTE: Colors may vary based on texture of fabric or dye lot. 32

33 The graphical or CAD portion of design is critical to convey design intent to the construction team. More than including the layout details as shown below, adding detail drawings (right) highlights specific details of the components, airflow type and orientation, suspension type, or inlet connection. Considering these details vary by fabric, complete drawing details and specifications are available at Sample CAD Details Appendix

34 Sample Fabric Porosity Design 5Appendix Series/Shape: Open ceiling = Cylindrical Design Layout: Centrally located unit and higher open ceiling (16 ft or 4.9m) allows for a simple layout. Diameter is selected for normal inlet velocity (<1,600)(8.1m/s). Diameter: 16 (406mm) at 1,433 FPM (7.3m/s) Air Dispersion: Fabric Porosity is selected based on the system being dedicated to cooling/ refrigeration. Inlet Static pressure is at: 0.50 w.g. (124Pa) Airflow through fabric: 2000 CFM (944 L/s) Suggested Porosity: 13 CFM/ft 2 (66(L/s)m 2 ) Porosity: 13 CFM/ft 2 (66(L/s)m 2 ) Fabric Selection: Microbex-X is selected due to the application being food processing. Suspension: Considering the DuctSox will be mounted against the bottom of the truss, a one row cable suspension with Gliders was selected. Using the available Designer, the design steps are much simpler. Contact your local DuctSox rep to get the most current version. Airflow into Inlet 2000 CFM 944 L/s Airflow Dispersed 2000 CFM 944 L/s Diameter 16 Inches 406 mm Length 32 Feet 9.9 m 6 Inches Inlet Velocity 1433 fpm 7.3 m/s Exit Velocity 0 fpm 0.0 m/s Inlet Static Pressure 0.50 in w.g. 124 Pa Inlet Velocity Pressure 0.13 in w.g. 32 Pa Pressure Losses 0.02 in w.g. 5 Pa Average Pressure 0.57 in w.g. 142 Pa Maximum Pressure 0.61 in w.g. 151 Pa Suggested Porosity 13.0 CFM/ft2 66 (L/s)/m2 Porosity 13 CFM/ft2 66 (L/s)/m2 34

35 Sample Linear Vent Design Series/Shape: Open ceiling = Cylindrical Design Layout: Centrally located unit and higher open ceiling (22 ft or 6.7m) allows for a simple layout. Diameter is selected for normal inlet velocity (<1,600)(8.1m/s). Diameter: 16 (406mm) at 1,433 FPM (7.3m/s) Air Dispersion: Linear Vents are selected (std.). Inlet Static pressure is at: Airflow through fabric: Airflow through vents: Vent detail: 0.50 w.g. (124 Pa) 311 CFM (147 L/s) 1689 CFM (797 L/s) size 17 at 4&8 o clock size 7 at 5&7 o clock Fabric Selection: Sedona-Xm is selected for extended warranty and custom color. Suspension: Considering the DuctSox will be mounted against the bottom of the truss, a one row track suspension with Gliders was selected. Using the available Designer, the design steps are much simpler. Contact your local DuctSox rep to get the most current version. Airflow into Inlet 2000 CFM 944 L/s Airflow Dispersed 2000 CFM 944 L/s Diameter 16 Inches 406 mm Length 32 Feet 9.9 m 6 Inches Inlet Velocity 1433 fpm 7.3 m/s Exit Velocity 0 fpm 0.0 m/s Inlet Static Pressure 0.50 in w.g. 124 Pa Inlet Velocity Pressure 0.13 in w.g. 32 Pa Pressure Losses 0.02 in w.g. 5 Pa Average Pressure 0.57 in w.g. 142 Pa Maximum Pressure 0.61 in w.g. 151 Pa Fabric Porosity 2.00 CFM/ft 2 10 (L/s)/m 2 Fabric CFM 311 CFM 147 L/s % of Air to Disperse 100% 100% Number of Vents 2 Vents 2 Vents Vent CFM 1689 CFM 797 L/s Appendix 5 Suggested Vent Size 24 CFM/ft 38 (L/s)/m 35

36 Sample Adjustable Nozzle Design 5Appendix Series/Shape: Open ceiling = Cylindrical Design Layout: Roof mounted unit with two drops coming into the space (as shown). Simple straight runs: diameter is selected for normal inlet velocity (<1,600) (8.1m/s). Diameter: 38 (965mm) at 1,207 FPM (6.2m/s) Air Dispersion: This manufacturing facility required adjustable throw and mixing. Adjustable Nozzle Series. Inlet Static pressure is at: Airflow through fabric: Airflow through Nozzles: Nozzle detail: 0.75 w.g. (186 Pa) 2077 CFM (980 L/s) 7423 CFM (3503 L/s) 178: 2 Dia at 4 & 8 o clock 4 (1.22m) void 8.18 (208mm) spacing Fabric Selection: Sedona-Xm fabric is selected as it is the premium option for, extended warranty, and available Blue color. Suspension: Considering the DuctSox will be mounted 24 inches (610mm) below the structure, a two row U-Track suspension with Gliders was selected. Using the available Designer, the design steps are much simpler. Contact your local DuctSox rep to get the most current version. Airflow into Inlet 9500 CFM 4483 L/s Airflow Dispersed 9500 CFM 4483 L/s Diameter 38 Inches 965 mm 65 Feet Length 19.8 m Inches Inlet Velocity 1207 fpm 6.2 m/s Exit Velocity 0 fpm 0.0 m/s Inlet Static Pressure 0.75 in w.g. 186 Pa Inlet Velocity Pressure 0.09 in w.g. 23 Pa Pressure Losses 0.01 in w.g. 2 Pa Average Pressure 0.80 in w.g. 200 Pa Maximum Pressure 0.83 in w.g. 206 Pa Fabric Porosity 2.00 CFM/ft 2 10 (L/s)/m 2 Fabric CFM 2077 CFM 980 (L/s) % of Air to Disperse 100% 100% Nozzle Size 2.00 Inch Dia 51 mm Dia CFM / Nozzle CFM L/s Nozzle Quantity # of Nozzle Rows 2 2 Void to First 4 Feet 1.2 m Nozzle Spacing 8.18 Inches 208 mm 36

37 Sample Orifice Design Series/Shape: Open ceiling = Cylindrical Design Layout: Roof mounted unit with two drops coming into the space (as shown). Simple straight runs: diameter is selected for normal inlet velocity (<1,600) (8.1m/s). Diameter: 38 (965mm) at 1,524 FPM (7.8m/s) Air Dispersion: This manufacturing facility required high mixing. Orifice Series. Inlet Static pressure is at: 0.50 w.g. (124 Pa) Airflow through fabric: 0 CFM (0 L/s) Airflow through Orifices: 12,000 CFM (5663 L/s) Orifice detail: 74: 2 Dia at 4 & 8 o clock 4 (1.22m) void 20 (508mm) spacing Fabric Selection: TufTex fabric is selected as it is the premium option for extended warranty, and available Blue color. Suspension: Considering the DuctSox will be mounted 24 inches (610mm) below the structure, a two row track suspension with Gliders was selected. Using the available Designer, the design steps are much simpler. Contact your local DuctSox rep to get the most current version. Airflow into Inlet CFM 5663 L/s Airflow Dispersed CFM 5663 L/s Diameter 38 Inches 965 mm 65 Feet L e n g t h m Inches Inlet Velocity 1524 fpm 7.7 m/s Exit Velocity 0 fpm 0.0 m/s Inlet Static Pressure 0.50 in w.g. 124 Pa Inlet Velocity Pressure 0.14 in w.g. 36 Pa Pressure Losses 0.01 in w.g. 4 Pa Average Pressure 0.59 in w.g. 146 Pa Maximum Pressure 0.63 in w.g. 157 Pa Fabric Porosity 0.00 CFM/ft2 0 (L/s)/m2 Fabric CFM 0 CFM 0 (L/s)m2 % of Air to Disperse 100% 100% Orifice Size 4.00 Inch Dia 102 mm Dia CFM / Orifice CFM L/s Orifice Quantity # o f O r i f i c e R o w s 2 2 Void to First 4 Feet 1.2 m Orifice Spacing Inches mm Appendix

38 5Appendix Equipment Specifications When designing any DuctSox System, many different factors contribute to the final design. AHU outlet diameter, external static pressure, outlet airflow velocity, room height, length, and width, and more, all must be considered in a proper design. The following section includes suggestions to consider when designing a new system or a retrofit to existing equipment. DuctSox Systems offer a variety of suspension options and fabrics that also must be chosen to fit both the proper suspension requirements and the decor of the environment. New Construction When designing a system for a new application or use with a new AHU unit, equipment specifications should include outlet volume and an external static pressure of at least.5 w.g ( Pa) at the DuctSox inlet. Standard centrifugal blowers typically work well for a DuctSox System. Filtering the air before it gets into the DuctSox is required with any of the permeable fabrics. While a 30% efficient filter is suggested, better filters reduce the dirt that gets into the system. Less dirt in the system means less cleaning, resulting in a longer product life. Retro/Existing Systems Most existing systems may include removing all of the existing metal ductwork and installing a complete DuctSox System. This approach will allow for proper sytem design and functionality. 38

39 Variable Air Volume (VAV) Boxes/Controls AHU Controls With an SkeleCore FTS system, a VAV can go from 0 to 100%. For all other fabric systems, do not design under 1/4 w.g. (62.21 Pa). With an emphasis on indoor air quality and the continued development of motor controllers, VAV systems are common. Considering the DuctSox system operates on positive pressure, it is important to match the airflow and relative pressure curve to ensure adequate inflation on the low side. Typically, DuctSox maintains an acceptable inflated appearance down to 0.25 w.g. (62.21 Pa). Frequency Drive/Soft Start Controls In order to reduce the popping that may be experienced upon inflation, a solution may include the use of a frequency drive or soft start motor controller to ramp up the speed of the fans. This will greatly reduce the initial surge of airflow that causes most of the stress on a fabric DuctSox System. Adjustable Flow Devices (AFDs) can also be used to reduce the initial surge of airflow upon start up. SkeleCore FTS eliminates the need for a frequency drive and soft start controls. Appendix

40 Sound Data This report gives the results of tests conducted on 24 inch (610 mm) diameter Diffusion Type Fabric Duct. The test results include Static Pressure, Air Volume and Sound Power Level. Test Method The samples were tested in accordance with the ASHRAE Standard Method of Testing for Rating the Performance of Air Outlets and Inlets, which incorporates ADC 1062: GRD-84 Test Code for Grilles, Registers and Diffusers. Acoustical data was obtained employing a Bruel & Kjaer Pulse Digital Frequency Analyzer. The reference sound source used for this test was a calibrated Bruel & Kjaer Type 4204, which conforms to the above standard. The octave band sound power levels were plotted on graph of Noise Criteria Curves which is in the ADC Test Code. These curves are reprinted with permission from the ASHRAE Handbook and Product Directory, Each sample was installed in the reverberation room, at the end of a 24 inch (610 mm) diameter duct system, and supplied with measured volumes of air. The static pressure was measured upstream of the sample section. Description of Test Specimen Each test specimen consisted of a 24 inch (610 mm) diameter, 15 foot (4572 mm) long, section of DuctSox Diffusion Type Fabric Duct supplied with an end cap. Summary of Results 5Appendix NC Adjustable Nozzle 420 cfm (198 L/sec) Linear Vent 483 cfm (228 L/sec) Fixed Nozzles 400 cfm (189 L/sec) Orifices 445 cfm (210 L/sec) Porous Fabric 1600 cfm (755 L/sec) (62 Pa) (124 Pa) (187 Pa) (249 Pa) Static Pressure 40

41 Critical Environments Airflow in laboratories and other critical environments are a critical design factor as turbulent air can negatively affect research or even cause hood failure resulting in a compliancy issue. LabSox Products are designed specifically to disperse large or small airflow volumes without creating significant air movement, noise, or temperature inconsistency that may disrupt fume hood or other airflow sensitive equipment (scales, laser, microscope, etc). LabSox are also applicable to industrial or commercial kitchen applications. Surround Flow Surround Flow is the most common air dispersion type, as 100% of the airflow dispersed by the LabSox passes through the fabric. The radial shape of the fabric face produces a uniform and radially diverging air pattern. Select Flow Select Flow combines customized vent patterns to include directional airflow control. To accomplish these airflow patterns, the highly permeable Rx series fabric offers air permeability ranges from 6 to 165 CFM/ft 2 (30.5 to (L/s)/m 2 ). The filament/filament construction ensures low particle shedding for clean environments. To best fit individual applications, these products are available in the traditional DuctSox shapes of Round, D-Shape, or Quarter-Round. They are available in almost any size to accommodate the airflow for each space. Inlet airflow velocity, locations, operating pressure, and more will factor into our design recommendations. For best results with critical environments, contact our sales support team. Round Modulear D-Fuser options are available in Metal Pan or All-Fabric models Airflow volume, pressure, and throw testing was performed at an independent testing laboratory. Detailed information available at D-Shape Quarter-Round MetalPan: 24 x24 (610 x 610mm) units tested to 500 CFM (236 L/s) /24 x48 (610 x1219mm) units tested up to 1,000 CFM (472 L/s) per unit (standard configuration) All-Fabric: 24 x 48 (610 x 1219mm) units tested to 1000 CFM (472 L/s) / 24 x 96 (610 x 2438mm) units tested up to 2,000 CFM (944 L/s) per unit (standard configuration) Appendix

42 UnderFloorSox UFSox are a specialty line of DuctSox products designed to distribute and disperse air within the plenum for Underfloor Air Distribution (UFAD) Systems. To install properly within the pedestals supporting the raised access floor, sectional lengths, elbows, and cable supports are all carefully designed to ensure a proper fit and flexibility for future changes. By design, sections of unvented UFSox route airflow to zones, where airflow is dispersed evenly through linear vents and an operable endcap. With installation, the UFSox simply rests on the floor. To minimize movement of fabric during deflation or future wiring or other modifications within the plenum, retention cables tension the fabric near the endcaps and elbows. DuctSox Diffuser 5Appendix Pull each end of straight sections using cross cable support with gripple The fabric can be attached to the supply by ducting it straight to the supply, or by connecting it to a sub plenum using a plenum baffle with taps. The dispersion methods within zones and routing from the supply involve careful consideration for many external factors, such as locations of boxes, plumbing, electrical, and more. For best results, consult our sales support team. 42