DuctSox Directional Damper Hangers (3x1) with TufTex: 
Old Format / Location:  		Division 15, Section 15800     
2005 Master Spec Format: 	Section/Category:  [23 37 16]

PART 1-GENERAL (Division 15, Section 15800)
1.1	DESCRIPTION OF WORK:
A.	Extent of non-metal ductwork is indicated on drawings and by requirements of this section.
B.	Types of non-metal ductwork required for this project include the following:
1.	Textile Air Dispersion Products.

1.2	QUALITY ASSURANCE:
A.	Building Codes and Standards:
1.	Product must be Classified by Underwriter’s Laboratories in accordance with the 25/50 flame spread / smoke developed requirements of NFPA 90-A and UL 2518.
2.	All product sections must be labeled with the logo and classification marking of Underwriter’s Laboratories.
B.	Design & Quality Control
1.	Manufacturer must have documented design support information including duct sizing; vent and/or orifice location; vent and/or orifice sizing; length; and suspension.  Parameters for design, including maximum air temperature, velocity, pressure and textile permeability, shall be considered and documented.
2.	Manufacturer's Environmental Product Declaration (EPD) must be inclusive of the following:
a.	Fabric
b.	Cutting, sewing, processing of DuctSox
c.	Zippers
d.	Metal suspension system parts and framework (if applicable)
e.	Energy, water, recycled & waste of plant processing fabric & suspension
f.	Complete packaging including boxes, bags & staples
g.	Transportation

1.3	SUBMITTALS:
A.	Product Data: Submit manufacturer’s specifications on materials and manufactured products used for work of this section.	
B.	Building Code Data: Submit UL file number under which product is Classified by Underwriter’s Laboratories for both NFPA 90-A and UL 2518.
C.	Provide detailed drawings confirming configuration of Textile Dispersion System (diameter, lengths, airflow, pressure, and textile permeability).
D.	Provide detailed installation instructions for components to be installed. 
E.	Provide warranty and maintenance documentation. 
F.	Provide product’s Environmental Product Declaration (EPD) that includes the following:
1.	Fabric
2.	Cutting, sewing, processing of DuctSox
3.	Zippers
4.	Metal suspension system parts and framework (if applicable)
5.	Energy, water, recycled & waste of plant processing fabric & suspension
6.	Complete packaging including boxes, bags & staples
7.	Transportation

1.4	WARRANTY:
	A.	Manufacturer must provide a 10 Year Product Warranty for products supplied for the fabric portion of this system as well as a Design and Performance Warranty.

1.5	DELIVERY, STORAGE AND HANDLING:
A.	Protect textile air dispersion system and hanger components from damage during shipping, storage, and handling.
B.	Where possible, store products inside and protect from weather.  Where necessary to store outside, store above grade and enclose with a vented waterproof wrapping.  

PART 2 - PRODUCTS
2.1	MANUFACTURER:
Subject to compliance with requirements, choose one of the following:
A.	DuctSox® Corporation
 Phone: (866) DUCTSOX or  (563) 588-5300
 www.DuctSox.com	    

2.2	TEXTILE AIR DISPERSION SYSTEM:
A.	Hanger Suspension: Air diffusers shall be constructed with multipoint suspension system.(Select only those options that apply)
1.	3x1 Hanger Suspension
a.	System shall include a three row connection to fabric system at 10, 12, and 2 o’clock locations.
b.	Powder-coated aluminum hangers are secured and connected to a one row suspension system every 3’-0” and connect to the fabric system at the 10 and 2 o’clock locations with detachable D-Clasps.
c.	The fabric system will also have intermediate Gliders located at 12 o’clock and between the hangers to attach directly to the one row suspension system located 3”(cable) or 4.5”(U-Track) above top-dead-center location of the fabric system.
d.	Available for diameters from 8” – 48”.
e.	One row suspension options(must specify if multiple on same project)
1.	 Cable suspension hardware to include cable, eye bolts, thimbles, cable clamps, and turnbuckle(s) as required.
a.	Cable suspension options(must specify if multiple on same project)
i.	Galvanized steel cable
ii.	Stainless steel cable
iii.	Impregnated steel cable(required for natatorium applications)
b.	Support lengths available in 5’(standard), 10’, 15’, & 30’.
2.	U-Track suspension hardware to include 8’ sections of aluminum track, aluminum splice connectors, track endcaps and vertical cable support kits – consisting of a length of cable with cable connectors.  Radius aluminum track must be included for all horizontal/flat radius sections.
a.	U-Track suspension options(must specify if multiple on same project)
i.	Galvanized steel cable
ii.	Stainless steel cable
iii.	Impregnated steel cable(required for natatorium applications)
b.	Support lengths available in 5’(standard), 10’, 15’, & 30’.
3.	U-Track Surface Mount systems shall be installed 1-1/2” above top-dead-center.  Textile system attachment to cable shall be made using Gliders spaced every 24 inches.  Available for systems less than 32” diameter.  U-Track suspension hardware to include 8’ sections of aluminum track, aluminum splice connectors, track endcaps, and U-Track suspension attachments.  Radius aluminum track must be included for all horizontal/flat radius sections.
a.	U-Track Surface Mount suspension options(must specify if multiple on same project)
i.	U-Clip spring attachment
ii.	U-Clip spring attachment with T-Bar clip and rivet
B.	TEXTILE
1.	TufTex 
a.	Textile Construction: Woven polyester with non-permeable coating, fire retardant in accordance with UL 2518. 
b.	Weight: 8.2 oz./yd2 per ASTM D3776
c.	Air Permeability: 0 CFM/ft2 per ASTM D737, Frazier
d.	Warranty: 10 years
2.	Textile Color
a.	Standard: blue, white, tan, red, green, silver, black
b.	Custom

C.	TEXTILE SYSTEM FABRICATION REQUIREMENTS:
1.	Textile system to be constructed in modular lengths (zippered). 
2.	Integrated air dispersion shall be specified and approved by manufacturer. (select only those that apply)
a.	Linear Vents
1.	Air dispersion accomplished by linear vent.  Linear vents must be sized in 1 CFM per linear foot increments (based on .5” SP), starting a 1 CFM through 90 CFM per linear foot.  Linear vent is to consist of an array of open orifices rather than a mesh style vent to reduce maintenance requirements of mesh style vents.  Linear vents should also be designed to minimize dusting on fabric surface.
2.	Size of vent openings and location of linear vents to be specified and approved by manufacturer. 
b.	Orifices  
1.	Air dispersion and extended throws are accomplished by orifices. Dispersion orifice sizing, up to 5 inch diameter (design dependent).	
2.	Diameter, quantity, and location of orifices to be specified and approved by manufacturer. 
3.	Metal Inlet Damper and Actuator custom built to switch from airflow oriented up and oriented down to be supplied with air dispersion system.
4.	Inlet connection to metal duct via fabric draw band with anchor patches as supplied by manufacturer.  Anchor patches to be secured to metal duct via. zip screw fastener – supplied by contractor.
5.	Inlet connection includes zipper for easy removal / maintenance.
6.	Lengths to include required intermediate zippers as specified by manufacturer.
7.	End cap includes zipper for easy maintenance.
8.	Each section of the textile shall include identification labels documenting order number, section diameter, section length, piece number, code certifications and other pertinent information. 

D.	DESIGN PARAMETERS:
1.	Textile air diffusers shall be designed from 0.25” water gage minimum to 3.1” maximum, with 0.5” as the standard.
2.	Textile air diffusers shall be limited to design temperatures between 0 degrees F and 180 degrees F (-17.8 degrees C and 82 degrees C).
3.	System overall design; diameter, length, airflow, operating static pressure and dispersion shall be designed or approved by the manufacturer.
4.	Do not use textile diffusers in concealed locations.
5.	Use textile air dispersion systems only for positive pressure air distribution components of the mechanical ventilation system.  
6.	Directional Damper designs require consideration for supply airflow oriented up and a complete separate design for supply airflow oriented down.

PART 3 – INSTALLATION

3.1	INSTALLATION OF TEXTILE AIR DISPERSION SYSTEM:
A.	Install chosen suspension system in accordance with the requirements of the manufacturer.  Instructions for installation shall be provided by the manufacturer with product.

3.2	CLEANING AND PROTECTION:
A.	Clean air handling unit and ductwork prior to the DuctSox system unit-by-unit as it is installed.  Clean external surfaces of foreign substance which may cause corrosive deterioration of facing.
B.	Temporary Closure: At ends of ducts which are not connected to equipment or distribution devices at time of ductwork installation, cover with polyethylene film or other covering which will keep the system clean until installation is completed.
C.	If DuctSox systems become soiled during installation, they should be removed and cleaned following the manufacturers standard terms of laundry.

***END OF SECTION***