Prihoda Fabric Duct Specification: Old Format/section : Division 15, Section 15800 2005 MasterSpec Format: Section/Category: [23 37 16]

Consultant / Specifier Note: This product specification guide is written in accordance to the Construction Specifications Institute (CSI) Format - 2005 Edition.

This section must be carefully reviewed and edited by the Consulting Engineer/Specifier to meet the requirements of each individual the project and local code. Coordinate with other specification sections, drawings, drawing notes, schedules and mechanical details.

*It is important to Delete all unnecessary “Specifier Notes” when editing this section for a concise and clear specification.

PART 1 - GENERAL

1.1 DESCRIPTION OF WORK

a. Non-metal ductwork as indicated on drawings and by requirements of this section. b. Required type of non-metal ductwork for this project is a: 100% Post Consumer Fabric Duct, Air

Dispersion System.

1.2 DESIGN, QUALITY ASSURANCE, AND CODE COMPLIANCE

1. Any production facility used by manufacturer must be ISO 9001 (quality management system) and 14001 (environmental impact management system) certified.

2. All product sections must be labeled with the logo and classification marking of Underwriter’s Laboratories, order number and manufacture date.

3. Material must be comprised of 100% Post-consumer recycled content polyester verified by a third party such as SCS Global Services.

4. Antibacterial/antimicrobial agent applied from factory meeting test standard ISO 20645

5. Product must be classified in accordance with the 25/50 flame spread/smoke development requirements of UL723 based on NFPA 90A - 1993, "Installation of Air Conditioning and Ventilating Systems". In addition products must be classified in accordance with ICC Evaluation Service AC167 and UL 2518.

6. Fabrics shall meet minimum criteria for use in ISO Class 4 application (Clean room, non shedding material) as defined by ISO 14644-1.

7. Textile Material shall meet minimum tensile strength warp1880/ weft1090N as defined by ISO 136934-1.

8. Textile Material must have documented ability to dissipate static electricity (anti-static properties) for use in volatile / explosion protected production facilities, sensitive electronic equipment, server rooms, and data storage.

9. Fabric Duct air dispersion system must designed in software which documents, calculates and provides: pressure loss, inlet velocity, turbulent condition warnings, throw capability, entrainment, deflection, flow models, sizing, installation methods, sound generated and temperature corrections.

1.3 SUBMITTALS

a. Submit copy of third party certification of 100% POST CONSUMER RECYCLED CONTENT

b. Submit copy of ISO 9001 certificate from production facility

c. Submit UL file number under which product is Classified by Underwriter’s Laboratories to UL723 (NFPA 90), ICC AC167 and UL 2518

d. Submit documentation for antimicrobial/antibacterial standard ISO 20645

e. Submit documentation for non-shedding material standard ISO 14644-1

f. Submit documentation for fabric strength ISO 13934-1

g. Submit documentation for Anti Static properties

h. Submit manufacturer's drawings indicating size / placement of distribution method, and mounting/installation instructions

i. Submit manufacturer’s technical product data for fabric distribution method

j. Submit manufacturer's performance data for each fabric duct system, including airflow rate, inlet velocity, static pressure and exit velocity out of duct system

k. Submit manufacturer’s maintenance data

1.4 WARRANTY

a. Manufacturer must provide a 10 Year Non-Prorated Warranty. Prorated 10 year warranties are not accepted.

1.5 DELIVERY, STORAGE AND HANDLING a. Protect Prihoda Fabric Duct systems from damage during shipping, storage and handling.b. Store products inside and protect from weather.

PART 2 - PRODUCTS

2.1 MANUFACTURER

a. Manufacturer must comply with all previous described requirements. Approved manufacturers:

1. Prihoda Fabric Duct1521 Concord Pike, Ste 301Wilmington, DE 19803Phone: (855) 774 4632 Fax: (855) 774 4632E-mail: north.america@prihoda.com

2.2 FABRIC DUCT / AIR DISPERSION SYSTEM

a. Prihoda Recycled Fabric Duct Air Dispersion System shall be constructed of PMI-re fabric. The material is a woven fire retardant and permeable fabric complying with the following characteristics:

1. Fabric: Flame Retardant, 100% Post-Consumer recycled Polyester, treated with an antimicrobial agent from manufacturer

2. Weight: 6.5 oz./yd² per ASTM D3776 minimum3. Strength: warp1880/ weft1090N Per ISO13934 4. Shrinkage: Max. 0,5% per ISO 6330-20005. Available Standard Colors: White (RAL 9016), Light Grey (Pantone 420/RAL 7035),

Dark Grey (Pantone 424/RAL 7037), Blue (Pantone 7462/RAL 5005). Custom color available, Architect/Owner must specify PANTONE or RAL number.

6. Temperature Range: -75°F to +230°F7. Permeability: 2 cfm (to prevent condensation only) 8. Fire Retardant: Must meet the requirements in NFPA 90-A, ICC AC-167 and UL2518

b. SYSTEM FABRICATION REQUIREMENTS

1. Air Dispersion Method Specifier: select method or combination of methods to suit application delete any not required **Mesh slots are not an acceptable or equivalent method of air distribution for any flow model due to overall poor performance and additional maintenance required from clogging with dirt/dust/debris**

(a.) Micro-perforation – (low velocity, laminar, low/no throw) Woven, high porosity fabrics not accepted due to additional maintenance (washing) required. EU3/Merv 5 or better filtration required.

-Uniform microperforation (cooling, isothermal/makeup air only)-Directional (short throw heating, cooling, ventilating)

(b.) Laser Cut Perforations/holes (comfort, medium, & long throw)-3/16” – 3” diameter (project dependent)-Laser cut (punching method not acceptable)-location, number and size determined by manufacturer

(c.) Small textile nozzles (medium to long throw)- ¾”, 1”, 1 1/2”-ultrasonically welded to duct from factory-made from same material as duct

(c.) Large Textile nozzles (long to very long throw, high velocity).- 3” minimum diameter, spacing as determined by design-Smaller Plastic nozzles not accepted as equal due to fire/smoke, throw and sound requirements- each nozzle must include internal adjustable damper- Adjustable and Directional nozzles are available, must specify on plans or schedule.- location, number and size determined by manufacturer

2. Provide system in sections optimized for maintenance (16’ maximum for diameters over 32”), connected by zippers. Zippers must provide closure completely around the circumference to prevent leakage.

3. Each section to have a unique tag including information about: manufacturers order number, position, diameter of section, length of section, maintenance instruction, code compliance and contact details for spare parts.

4. Zippered inlet connection.5. Endcap can be zippered or sewn to the last duct section as required. 6. Equalizers (flow correctors) and/or dampers to be included as shown on plans or

schedules.7. Include hooks which slide into track profile or snap on to wire/cable or continuous fabric

strip which slides into track if shown in detail or noted on plans8. Include SS inlet clamp for securing to metal outlet connection point.

c. DESIGN PARAMETERS

1. Do not use fabric duct air diffusers in concealed locations (unless pressurized plenum space intended for air distribution).

2. Fabric diffusers shall be designed from minimum 0.25” water gage to 3” as the maximum – 0.5” being the standard.

3. Design temperatures between –75°F and 230°F4. Manufacturer shall approve all technical design parameters.

d. INSTALLATION METHOD / HANGER SUPPORT (Specifier: select one type, delete all others)

1. Single Cable/Wire Suspension - One row cable system located 1.25” above 12 o’clock of Fabric duct system. Fabric Duct system to be attached to hardware using one single row of plastic hooks located 12 o’clock spaced 20 inches. Hardware to include cable, cable clamps, turnbuckles, and tie down straps as required. Support hangers spaced at 16 feet.

2. Double Cable/Wire Suspension - (Recommended for diameters over 32”) Two row cable system with hooks located at 3 and 9 o’clock on Fabric duct system. Fabric Duct system to be attached to wire / cable using double row of plastic hooks located 3 and 9 o’clock spaced 20 inches. Hardware to include cable, cable clamps, turnbuckles, and tie down straps as required. Support hangers spaced at 16 feet.

3. Triple Cable/Wire suspension – (Recommended for diameters over 54”) Fabric Duct system to be attached to cable/wire using three rows of plastic hooks located 3, 12 and 9 o’clock spaced 20 inches. Hardware to include cable, cable clamps, turnbuckles, and tie down straps as required. Support hangers spaced at 16 feet.

4. Single aluminum track profile - Fabric Duct system to be attached to track profile using plastic gliders located at 12 o’clock spaced 20 inches or continuous reinforced fabric strip. Wire/cable hangers spaced at 6.6 feet. *Note to increase spacing up to 13’ specify reinforced track option.

5. Double aluminum track profile – (recommended for diameters over 32”) Fabric Duct system to be attached to track profile using plastic gliders or reinforced fabric strips located at 9 and 3 o’clock spaced 20 inches or continuous reinforced fabric strip.

Wire/cable hangers spaced at 6.6 feet. *Note to increase spacing up to 13’ specify reinforced track option.

6. Triple aluminum track profile - Fabric Duct system to be attached to track profile using plastic gliders or reinforced fabric strip located at 3, 12, and 9 o’clock spaced 20 inches or continuous reinforced fabric strip. Wire/cable hangers spaced at 6.6 feet. *Note to increase spacing up to 13’ specify reinforced track option.Hanging Hardware options – (Specifier: select one, delete all others)a. Plastic Coated Stainless Steel Cable – all other components Stainless Steelb. Galvanized cable with gripple (Loop, Stud, or Toggle)c. Plastic Coated Galvanized Cable – all other components Galvanized Steel

Reinforcing options (hold open) – (not required, Specifier: select one if desired, delete any not desired)a. Internal rings (ALU, SS, or Heat resistant plastic) b. Internal Aluminum Arcs (placed in roof of duct at factory from 9 to 3, holds duct

open) c. Tensioning device to remove wrinkles/creases

1.6 AIR HANDLER REQUIREMENTS

a. Provide adequate pre-filtering (MINIMUM EU3/MERV 5) prior to the fabric duct system, all according to manufacturers specifications.

b. Provide fans supplying constant static pressure or VAV systems permitted if included in initial design and Fabric ductwork is designed accordingly.

c. Soft starter, VSD,VFD, recommended when possible.

PART 3 - INSTALLATION

3.2 INSTALLATION OF PRIHODA RECYCLED FABRIC DUCT SYSTEMa. Examine area and conditions under which the Prihoda Recycled Fabric Duct system is to be

installed. Do not continue any installation until unsatisfactory conditions have been corrected.b. Install chosen suspension system in accordance with the requirements of the manufacturer.

Installation instructions to be provided by the manufacturer with product.c. Coordinate layout with suspended ceiling, lighting layouts, and similar finished work.

3.3 CLEANING

a. Clean air handling unit and other ductwork prior to the Prihoda Recycled fabric duct system as it is installed. Make sure that all dust and debris from installation is removed from the air handling unit and other ductwork before connecting the fabric duct system.

b. If the Fabric duct system becomes soiled during the installation, it should be removed and cleaned following the manufacturers cleaning instructions.

END OF SECTION