Ruskin Manufacturing							May, 1998
3900 Dr. Greaves Road
Kansas City, Missouri  64030
Phone		(816) 761-7476
Fax		(816) 765-8955

Product Guide Specification

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Specifier Notes:  This product guide specification is written according to the Construction Specifications Institute (CSI) MasterFormat, Three-Part SectionFormat, and PageFormat, contained in the CSI Manual of Practice.  Five-digit section numbers are from MasterFormat, 1995 edition.

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

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Specifier Notes:  This section covers Ruskin Manufacturing Class I combination fire smoke dampers suitable for application in HVAC systems with velocities to 2,000 feet per minute (610 m/min), Model FSD37.  Consult Ruskin for assistance in editing this section for specific applications.
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PART 1	GENERAL

1.1	SECTION INCLUDES

A.	Class I combination fire smoke dampers suitable for application in HVAC systems with velocities to 2,000 feet per minute (610 m/min).

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

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

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

F.	NFPA 92A - Smoke-Control Systems.

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

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

1.4	SUBMITTALS

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

B.	Product Data:  Submit manufacturer's product data.
1.	Include leakage, pressure drop, and maximum pressure data.
2.	Indicate materials, construction, dimensions, and installation details.
3.	Verify conformance to NFPA 90A, NFPA 92A, UL 555, UL 555S, BSA, CSFM, and applicable building code.
4.	Verify damper pressure drop ratings based on tests and procedures performed in accordance with AMCA 500.

1.5 	QUALITY ASSURANCE

A.	Manufacturer:  Test and qualify with UL a complete range of damper sizes covering dampers specified.  Testing 1 size only is not acceptable.  

B.	Damper Capacity:  Demonstrate damper capacity to open and close under HVAC system operating conditions in accordance with UL 555S.
1.	Closed Position:  Maximum pressure of 4 inches w.g. (1 kPa).
2.	Open Position:  Maximum air velocity of 2,000 feet per minute (610 m/min).

C.	Pressure Drop Ratings:  Damper pressure drop ratings based on tests and procedures performed in accordance with AMCA 500.

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.

B.	Storage:  Store materials in a dry area indoors, 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 Manufacturing, 3900 Dr. Greaves Road, Kansas City, Missouri 64030.  Phone (816) 761-7476.  Fax (816) 765-8955.

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.	Fabrication:
1.	Model:  FSD37.
2.	Fire Rating:  UL 555 classified and labeled as a 1-1/2 hour fire damper.
3.	Smoke Rating:  UL 555S classified and labeled as a Leakage Class I Damper for use in smoke control systems.
a.	Leakage Class I:  4 cubic feet per minute per square foot (1.2m3/min/m2) at 1 inch w.g. (0.25 kPa). 

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Specifier Notes:  Dual directional airflow is necessary for simple installation.  Fire smoke dampers with unidirectional airflows limit installation methods.
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4.	Air Flow Rating:  UL approved for dual directional air flow.
5.	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.

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Specifier Notes:  Full length longitudinal grooves (minimum of 3) strengthen the blade.  Flat blades should not be acceptable.
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6.	Blades:
a.	Style:  Single skin with 3 longitudinal grooves. 
b.	Action:  [Parallel] [Opposed].
c.	Orientation:  Horizontal.	
d.	Material:  Minimum 16 gage (1.6 mm) equivalent thickness, galvanized steel.
e.	Width:  Maximum 6 inches (152 mm).

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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.
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7.	Bearings:  Self-lubricating stainless steel sleeve, turning in extruded hole in frame.

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Specifier Notes:  Glue-on seals can fall off the damper blade and frame, affecting the leakage rating and damper performance. 
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8.	Seals:
a.	Blade:  Inflatable silicone coated fiberglass material for smoke seal to 450 degrees F (232 degrees C) and galvanized steel for flame seal to 1,900 degrees F (1,038 degrees C).  Mechanically attached to blade edge. 
b.	Jamb:  Stainless steel, flexible metal compression type.

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Specifier Notes:  Specify concealed linkage for lower pressure drop and low maintenance.
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9.	Linkage:  Concealed in frame.
10.	Axles:  Minimum 1/2 inch (13 mm) diameter plated steel, hex-shaped, mechanically attached to blade.
11.	Mounting:  [Vertical] [Horizontal].
12.	Heat-Actuated Temperature Release Device:
a.	Control close and lock damper during test, smoke detection, power failure, or fire conditions through actuator closure spring.  At no time shall actuator disengage from damper blades.
b.	Allow damper to be automatically and remotely resettable after test, smoke detection, or power failure conditions.  After exposure to high temperature or fire, inspect damper before reset to ensure proper operation.

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Specifier Notes:  Ruskin® Controlled Closure eliminates HVAC duct system component damage which results from instantaneous closure devices.
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c.	Controlled closure and locking of damper to occur in 3 to 15 seconds to allow duct pressure to equalize.  Instantaneous closure is not acceptable.
d.	[Electric EFL with electric actuators] [Pneumatic PFL with pneumatic actuators].

e.	Release Temperatures:  [165 degrees F (74 degrees C)] [212 degrees F (100 degrees C)] [285 degrees F (141 degrees C)].

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Specifier Notes:  Specify an electric or pneumatic actuator.  Delete fifteen second criteria if not required.
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13.	Actuator:
a.	Electric:  [120 V, 60 Hz, two-position] [24 V, 60 Hz, two-position] [24 V, 60 Hz, modulating]. 
b.	Pneumatic:  20 to 30 psi (138 to 207 kPa) supply air pressure, [two-position] [modulating].
c.	Fifteen Second Criteria:  Meet UBC 15 second operation requirement.
14.	Duct Transition Connection:  [Round] [Oval] [Rectangular].

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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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15.	Finish:  Mill galvanized.		
16.	Assembly:  Factory assemble damper, actuator, and accessories and furnish as a single unit conforming to UL 555 and UL 555S.

B.	Performance Data:
1.	Elevated Temperature Qualified:  Damper and actuator assembly qualified in accordance with UL 555S to elevated temperature of [250 degrees F (121 degrees C)] [350 degrees F (177 degrees C)] [450 degrees F (232 degrees C)].
2.	Capacity:  Demonstrate capacity of damper and actuator assembly to operate, by opening and closing, in HVAC system operating conditions.
a.	Closed Position:  Maximum pressure of 4 inches w.g. (1 kPa).
b.	Open Position:  Maximum air velocity of 2,000 feet per minute (610 m/min).
3.	Leakage Class:  Leakage Class I, when applied in systems with maximum pressure of 4 inches w.g. (1 kPa).

2.3	ACCESSORIES

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Specifier Notes:  Consult Ruskin for assistance in specifying accessories for specific applications.
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A.	TS 150EZ FireStat:
1.	UL classified.
2.	Electrically and mechanically lock damper in closed position when duct temperatures exceed [165 degrees F (74 degrees C)] [212 degrees F (100 degrees C)] and still allow appropriate authority to override FireStat and operate damper as may be required for smoke management functions.
3.	Allow damper to remain operable while temperature is below [250 degrees F (121 degrees C)] [350 degrees F (177 degrees C)] [450 degrees F (232 degrees C)].

4.	Interface electrically with [smoke detectors] [building fire alarm systems] [remote indicating and control stations].		
5.	High Limit Temperature Sensor:
a.	Returns damper to fire protection mode when temperatures reach operational limit of damper and actuator assembly of [250 degrees F (121 degrees C)] [350 degrees F (177 degrees C)] [450 degrees F (232 degrees C)].
b.	Conform to NFPA 92A.
c.	Replaces EFL or PFL Ruskin® Controlled Closure devices on standard dampers.
6.	Blade Position Indicator Switches:  Two position indicator switches linked directly to damper blade to remotely indicate damper blade position.

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Specifier Notes:  The SP 100 Switch Package is included as an integral part of the TS 150EZ FireStat or can be supplied separately.  Switch package indicates actual blade position, not actuator or control shaft position.
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SP 100 Switch Package:  Two position indicator switches linked directly to damper blade to remotely indicate damper blade position.

DSD – Duct Smoke Detector:  
UL classified
[Factory Mounted] [Shipped Loose for Field Installation] 

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Specifier Note:  Phototelectronic type smoke detectors are recommended for in duct applications.
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[Photoelectronic]  [Ionization]
Duct velocities of 500 to 4,000 fpm
		
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Specifier Notes:  Ruskin picture frame mounting angles are built to the exact dimensions of the damper and are shipped on the damper.  Picture frame mounting angles reduce installation time and cost.
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D.	Picture Frame Mounting Angles:
1.	One-piece, roll formed retaining angles [1-1/2 x 1-1/2 inches (38 x 38 mm)] [1-1/2 x 2-1/2 inches (38 x 64 mm)].
2.	Factory matched and shipped on individual damper.
3.	Factory pre-punched screw holes. 
4.	Requires factory sleeve.

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Specifier Notes:  Factory sleeve is necessary to ensure damper assembly complies with leakage rating.
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E.	Factory Sleeve:
1.	Minimum 20 gage (1.0 mm) thickness, minimum 17 inches (432 mm) length.
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.

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