Ruskin Manufacturing								  May 2011
3900 Dr. Greaves Road
Kansas City, Missouri  64030
Phone		(816) 761-7476
Fax		(816) 765-8955
Web Site	www.ruskin.com

Product Guide Specification

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Specifier Notes:  This product guide specification is written according to the Construction Specifications Institute (CSI) Format.

The section must be carefully reviewed and edited by the Engineer to meet the requirements of the project and local building code.  Coordinate with other specification sections and the drawings.

Delete all "Specifier Notes" when editing this section.
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SECTION 15820

COMBINATION FIRE SMOKE DAMPERS

PART 1	GENERAL

1.1	SECTION INCLUDES

A.	Combination fire smoke dampers with air-foil shaped blades meeting the requirements of the latest edition of UL Standard 555 and UL Standard 555S.

1.2	RELATED SECTIONS

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Specifier Notes: Edit the following list as required for the project.  List other sections with work directly related to the dampers.
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A.	Section 15810 - Ducts.

B.	Section 15900 - Damper Actuators.

1.3	REFERENCES

A.	AMCA 500 - Test Methods for Louvers, Dampers and Shutters.

B.	AMCA 511 - Certified Ratings Program for Air Control Devices.

C.	BOCA – Building Officials and Code Administrators.

D.	ICBO – International Conference of Building Officials.

E.	SBCCI – Southern Building Code Congress International.

F.	IBC – International Building Code.

G.	CSFM - California State Fire Marshall Listing for Fire Damper and Smoke Damper.

H.	BSA - City of New York, Department of Buildings, Board of Standards and Appeals.

I.	  MEA – City of New York, Department of Buildings, Material and Acceptance Division. 

J.	NFPA 90A - Installation of Air Conditioning and Ventilating Systems.		

K.	  NFPA 92A - Smoke-Control Systems.

L.	  NFPA 92B – Smoke Control Systems in Atria, Covered Malls, and Large Areas.

M.	  NFPA 101 – Life Safety Code.

N.	UL 555 - Standard for Safety; Fire Dampers.	

O.	UL 555S - Standard for Safety; Leakage Rated Dampers for Use in Smoke Control Systems.

P.	UL & CSA Class I, II & III; Group B, C, D, E, F & G

Q. 	NEMA 7, Class I, Groups B, C & D, NEMA 9, Class II, Groups E, F & G, NEMA 4

1.4	SUBMITTALS

A.	Comply with requirements of Section 01330 - Submittal Procedures.

B.	Product Data:  Submit manufacturer's product data.
1.	Include UL ratings, leakage, pressure drop, and maximum pressure data.
2.	Indicate materials, construction, dimensions, and installation details.
3.	Verify conformance to NFPA, UL, BSA or MEA, CSFM, and applicable building code.
4.	Include damper pressure drop data based on tests and procedures performed in accordance with AMCA 500.
5. 	Include explosion-proof ratings and applicable agency listings for actuator and enclosure.

1.5	QUALITY ASSURANCE

	A.	Dampers shall be warranted against manufacturing defects for a period of 5 years.

B.	Dampers shall be tested, rated and labeled in accordance with the latest UL requirements.  
C. 	Damper pressure drop ratings shall be based on tests and procedures performed in accordance with AMCA 500 and certified by AMCA (if applicable).

D.	Dampers shall be manufactured in an ISO9001 certified manufacturing facility specializing in the design and construction of life safety products.

1.6	DELIVERY, STORAGE, AND HANDLING

A.	Delivery:  Deliver materials to site in manufacturer's original, unopened containers and packaging, with labels clearly indicating manufacturer and material.  Manufacturer shall provide job site specific tagging on the outside of each crate, indicating the staging area where the product is to be delivered.  Products shall be packaged by floor, zone, wing, or other specifically designated location as called out on the damper schedule. 

B.	Storage:  Store materials in a dry area indoor, protected from damage and in accordance with manufacturer's instructions.

C.	Handling:  Handle and lift dampers in accordance with manufacturer's instructions.  Protect materials and finishes during handling and installation to prevent damage.

PART 2	PRODUCTS

2.1	MANUFACTURER

A.	Ruskin Company, 3900 Dr. Greaves Road, Kansas City, Missouri 64030.  Phone (816) 761-7476.  Fax (816) 765-8955.  Web Site www.ruskin.com.

2.2	COMBINATION FIRE SMOKE DAMPERS

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Specifier Notes: Consult Ruskin for assistance in selecting from options for specific applications.  
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A.	Model: FSD60XP combination fire smoke dampers with rated explosion and fire hazard enclosure.

B.	Ratings:

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Specifier Notes: NFPA 90A recommends that HVAC penetrations through barriers with fire resistance ratings less than 3 hours be protected by 1½ hour rated fire dampers. ********************************************************************************************************************

1.	Fire Resistance: 
•	1-1/2 hours in accordance with UL555.

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Specifier Notes: Select the appropriate combination fire smoke damper model based on the smoke rating (Leakage Class).  
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2.	Smoke Rating: 

•	FSD60 - Leakage Class I Smoke Damper in accordance with UL555S.  A Class l smoke damper leaks no more than 8 cubic feet per minute (.23 m3/min) at 4 in. w.g. (1 kPa) differential pressure.

3.	Elevated Temperature Rating: 
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Specifier Notes: Elevated temperature ratings of 250F and 350F are allowed by UL Standard 555S.  The building codes require a rating of 250F.  ********************************************************************************************************************

•	250F.
		
4.	Air Flow Rating:
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Specifier Notes: Airflow ratings of 2000 and 3000 fpm are allowed by UL Standard 555S. Select one of the following air flow ratings.
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•	2000 fpm.

5.	Differential Pressure Rating: 4 in. wg.

C.	Construction:
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Specifier Notes: A problem with dampers is flimsy construction of the damper frame.  A flimsy frame makes the damper susceptible to “bad” (out of square or racked) installations and causes operating problems.  Specifying a one-piece, roll-formed, hat-shaped channel, constructed from 16 gauge steel and structurally equivalent to 13 gauge (2.3 mm) U-channel type frame can significantly reduce those problems.
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1.	Frame:  5 inches x minimum 16 gage (127 x minimum 1.6 mm) roll formed, galvanized steel hat-shaped channel, reinforced at corners.  Structurally equivalent to 13 gage (2.3 mm) U-channel type frame.

2.	Blades:
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Specifier Notes: Box or square type blades are often misrepresented as airfoil type blades but do not provide the same performance as true airfoil type blades.  Box or square type blades can cause excessive turbulence and pressure drop.
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a.	Style:  Airfoil-shaped, single piece, double skin. 
b.	Action:  Opposed.	
c.	Material:  Minimum 14 gage (2.0 mm) equivalent thickness, galvanized steel.
d.	Width:  Maximum 6 inches (152 mm).
			
3.	Bearings:  Self-lubricating stainless steel sleeve, turning in extruded hole in frame.
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Specifier Notes: Extruded bearing hole provides more axle-to-bearing surface.  The bearings will last longer, adding to the life of the damper.  Specify stainless steel bearings for damper reliability.
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4.	Seals:
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Specifier Notes: Glue-on seals can fall off affecting the leakage rating and damper performance.
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a.	Blade: Inflatable silicone fiberglass material to maintain smoke leakage rating to a 
			minimum of 450F (232C) and galvanized steel for flame seal to 1,900F (1,038C).  
                  Mechanically attached to blade edge (glue-on or grip type seals are not acceptable).
b.	Jamb: Stainless steel, flexible metal compression type.
		
5.	Linkage:  Concealed in frame.
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Specifier Notes: Specify concealed linkage for lower pressure drop and low maintenance.
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6.	Axles:  Minimum ½ inch (13) diameter plated steel, hex-shaped, mechanically attached to 
             blade.

7.	Mounting: Vertical and/or Horizontal.

8.	Temperature Release Device: Heat-Actuated.

9.	Release Temperature:
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Specifier Notes: Select one of the following release temperatures.
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•	165 degrees F (74 degrees C).
•	212 degrees F (100 degrees C).

10.	Actuator:
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Specifier Notes: Specify an electric actuator and mounting.  Stall type electric actuators with external return springs are not acceptable.  External mounting is recommended because the actuators are easier to access and because they do not block the air stream.  Specify actuator housing that is approved for UL & CSA Class I, II & III; Group B,C, D, E, F & G, NEMA 7, Class I, Groups B, C & D, NEMA 9, Class II, Groups E, F & G, and NEMA 4 applications.  Housing shall be cast, copper-free aluminum.

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a.	Type:
•	Electric 120 V, 50/60 Hz, two-position, fail close.
•	Electric 24V, 50/60 Hz, two-position, fail close.

b.	Mounting:
•	External.

11.	Finish:  Mill galvanized.
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Specifier Notes: Standard finish is mill galvanized.  Consult Ruskin for assistance in specifying special finishes for specific applications.
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2.3     ACCESSORIES

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Specifier Notes: Consult Ruskin for assistance in specifying accessories for specific applications.
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A.	Indicator or Auxiliary Switch Packages:
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Specifier Notes: Ruskin can provide actuators with internal auxiliary switches if desired.
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•	2xSPST 7A resistive, 2.5A inductive at 120V or 250V, UL listed, double-insulated, one switch at 10°, one adjustable from 30° to 90°.  

B.      Mounting Angles:
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Specifier Notes: Ruskin mounting angles (FAST Angle and PFMA) are one piece with factory pre-punched screw holes.  They are factory matched to the damper and shipped on the damper.  FAST Angle and PFMA (Picture Frame Mounting Angles) reduce installation time and cost.  FAST Angle is a single angle used with Ruskin dampers for one angle installations.  FAST angle and PFMA are qualified for all types of construction (masonry, wood and metal stud).  An added feature of the FAST Angle is it can be fastened directly to metal stud wall framing members before or after the installation of the fire rated gypsum wall board.  PFMA are two angles used with Ruskin dampers where two mounting angles are required to complete the installation.  Specify FAST Angle or PFMA and size. 
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•	FAST, 1-1/2 x 1-1/2 inches (38 x 38).
•	FAST, 1-1/2 x 2-1/2 inches (38 x 64).
•	PFMA, 1-1/2 x 1-1/2 inches (38 x 38).
•	PFMA, 1-1/2 x 2-1/2 inches (38 x 64).

	C.	Factory Sleeve:
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Specifier Notes: Factory sleeve is necessary to ensure damper assembly complies with leakage rating.  It also provides the primary support for the actuator and explosion-proof housing.  Ruskin utilizes a minimum 12 gage (2.75 mm) sleeve to ensure proper performance.
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1.	Minimum 12 gage (2.75 mm) thickness, minimum 20 inches (508 mm) long.
2.	  Silicone caulk factory applied to sleeve at damper frame to comply with leakage rating 
			requirements.

2.4 	SOURCE QUALITY CONTROL

A.	Factory Tests: Factory cycle damper and actuator assembly to assure proper operation.
B.	Quality Process: Entire assembly shall be constructed in an ISO9001 certified facility specializing in life safety damper design and construction.

PART 3 	EXECUTION

3.1	EXAMINATION

A.	Inspect areas to receive dampers.  Notify the Engineer of conditions that would adversely affect the installation or subsequent utilization of the dampers.  Do not proceed with installation until unsatisfactory conditions are corrected.

3.2	INSTALLATION

A.	Install dampers at locations indicated on the drawings and in accordance with manufacturer's UL approved installation instructions.

B.	Install dampers square and free from racking with blades running horizontally.

C.	Do not compress or stretch damper frame into duct or opening.

D.	Handle damper using sleeve or frame.  Do not lift damper using blades, actuator, or jackshaft.

E.	Install bracing for multiple section assemblies to support assembly weight and to hold against system pressure.  Install bracing as needed.

END OF SECTION