FSD Specs 1

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TENDER NO. DMRC/ELECT./IT&PD/ILBS/HVAC-LV-FF-02

PAGE No 101of 204 Nov.2011

15.0 MOTORISED FIRE & SMOKE DAMPERS

GENERAL

WORK INCLUDED

Combination fire smoke dampers with steel 3-V blades meeting requirements of UL Standard

555 7th Edition and UL Standard 555S 4th Edition.

RELATED WORK

A. Section 15810 Ducts.B. Section 15900 HVAC Instrumentation and Controls: Connections to actuators.

REFERENCESA. AMCA 500-D Laboratory Methods for Testing Dampers for Ratings.

B. AMCA 511 Certified Ratings Program for Air Control Devices.C. CSFM California State Fire Marshall Listing for Fire Damper and Smoke Damper

(leakage).

D. New York City MEA New York City, Department of Buildings, Material andEquipment Acceptance Division.

E. IBC International Building CodeF. NFPA 80 - Fire Doors & Other Opening ProtectivesG. NFPA 90A Installation of Air Conditioning and Ventilating Systems.H. NFPA 92A Smoke Control SystemsI. NFPA 92B Smoke Control Systems in Atria, Covered Malls, and Large Areas.J. NFPA 101 Life Safety Code.K. UL 555 (Seventh Edition) Standard for Safety: Fire DampersL. UL 555S (Fourth Edition) Standard for safety: Leakage Rated Dampers for Use in

Smoke Control Systems.

SUBMITTALS

A. Comply with requirements of Section 01330 Submittal Procedures.B. Product Data: Submit manufacturers product data.

1. Include UL ratings for fire resistance, leakage, ww

QUALITY ASSURANCE

A. Dampers shall meet requirements for combination fire smoke dampers in accordance with:1. NFPA 80, 90A, 92A, 92B, and 101.2. CSFM Fire Damper Listing.3. CSFM Leakage (Smoke) Damper Listing.4. New York City MEA Listing 260-91-M Vol. III.5. Applicable Building Codes.

B. Dampers shall be tested, rated, and labeled in accordance with:1. UL 555 (Seventh Edition), Listing R13317

2. UL 555S (Fourth Edition), Listing R13317

C. Dampers shall bear the AMCA Certified Ratings Seal for Air Performance in accordancewith AMCA 511.

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DELIVERY, STORAGE, AND HANDLING

A. Delivery: Deliver Materials to site in manufacturers original, unopened containers andpackaging, with labels clearly indicating manufacturer, material, and location of installation.

B. Storage: Store materials in a dry area indoor, protected from damage, and in accordance withmanufacturers instructions.

C. Handling: Handle and lift dampers in accordance with manufacturers instructions. Protectmaterials and finishes during handling and installation to prevent damage.

PRODUCTS

COMBINATION FIRE SMOKE DAMPERS

Ratings:

1. Fire Resistance: Dampers shall have a UL 555 fire resistance rating of 1 hours.

2. Fire Closure Temperature:Each combination fire smoke damper shall be equipped with a factory installed

heat responsive device rated to close the damper when the temperature at the

damper reaches:

165F

3. Elevated Operational Temperature:

Dampers shall have a UL 555S elevated temperature rating of 350F.4. Leakage:

Dampers shall have a UL555S leakage rating of Leakage Class I

5. Differential Pressure: Dampers shall have a minimum UL 555S differential pressure rating of 4 in. wg.

6. Velocity: Dampers shall have a minimum UL 555S velocity rating of 2000 fpm.

Construction:

1. Frame:

Damper frame shall be 16 ga. galvanized steel formed into a 5 x 1 structural hat

channel. Top and bottom frame members on dampers less than 17 high shall be low

profile design to maximize the free area of these smaller dampers. Frame shall be 4-

piece construction with 1 (minimum) integral overlapping gusset reinforcements

in each corner to assure square corners and provide maximum resistance to racking.

2. Blades:

Damper blades shall be 16 ga. galvanized steel strengthened by three longitudinal 1

deep Vee grooves running the entire length of each blade. Each blade shall be

symmetrical relative to its axle pivot point, presenting identical performancecharacteristics with air flowing in either direction through the damper. Provide

symmetrical blades of varying size as required to completely fill the damper opening.

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3. Blade Stops:

Each blade stop (at top and bottom of damper frame) shall occupy no more than of

the damper opening area to allow for maximum free area and to minimize pressure

loss across the damper.

4. Seals:

a. Blade Edge: Blade seals shall be extruded silicone rubber permanentlybonded to the appropriate blade edges.

b. Jamb: Flexible stainless steel compression type.

5. Linkage:Concealed in jamb.

6. Axles: Minimum inch dia. plated steel. Frame: Galvanized steel (in gauges

required by manufacturers UL listing).

7. Sleeves: Damper shall be supplied as a single assembly with an integral factorysleeve.

8. Bearings: Axle bearings shall be sintered bronze sleeve type rotating in polishedextruded holes in the damper frame.

Actuators:

1. Type: Electric, 230V AC, 2-position

2. Mounting: External

SOURCE QUALITY CONTROL

A. Factory Tests: Factory cycle damper and actuator assemblies to assure proper operation.

EXECUTION

EXAMINATION

Examine areas to receive dampers. Notify the Engineer of conditions that would adversely

affect installation or subsequent utilization of dampers. Do not proceed with installation until

unsatisfactory conditions are corrected.

INSTALLATION

A. Install dampers in accordance with manufacturers UL Installation Instructions, labeling, andNFPA 90A at locations indicated on the drawings. Any damper installation that is not in

accordance with the manufacturers UL Installation Instructions must be approved prior to

installation.

B. Dampers must be accessible to allow inspection, adjustment, and replacement of components.The sheet metal contractor shall furnish any access doors in ductwork or plenums required to

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provide this access. The general contractor shall furnish any access doors required in walls,

ceilings, or other general building construction.

C. Install dampers square and free from racking.

D. The installing contractor shall provide and install bracing for multiple section assemblies tosupport assembly weight and to hold against system pressure.

E. Do not compress or stretch the damper frame into the duct or opening.

F. Attach multiple damper section assemblies together in accordance with manufacturersinstructions. Install support mullions as reinforcement between assemblies as required.

G. Handle dampers using the frame or sleeve. Do not lift or move dampers using blades,actuator or jackshaft.

H. Install connections to [electric, pneumatic] actuators as specified in section 15900.

I. Attach multiple damper section assemblies together in accordance with manufacturersinstructions. Install support mullions as reinforcement between assemblies as required.

15.0 (B) FIRE DAMPERS (MOTORIZED) (Non UL Listed) - If Applicable

3.1 Fire Dampers shall be motorized of atleast 2 hours Fire Rating certified by CBRI, Roorkeeas per UL 555:1973.

3.2 Fire Damper blades & outer frame shall be formed of 1.6 mm galvanized sheet steel. Thedamper blade shall be pivoted on both ends using chrome plated spindles of self lubricatedbronze bushes. Stop seals will be provided on top and bottom of the damper housingmade of 16 G galvanized sheet steel. For preventing smoke leakage side seals will beprovided.

3.3 In normal position damper blade shall be held in open position with the help of a 220Voperated motorized actuators thereby providing maximum air passage without creating anynoise or chatter.

3.4 The damper shall be actuated through electric motorized actuator. The actuator shall beenerzised with the help of a signal from smoke detector. Smoke detector shall be provided

by Fire Fighting agencies. The Fire Damper shall be provided with micro switches withbakelite base to stop fan motor in the event of damper closure. The reopening of dampershall be manual.

3.5 Fire Dampers shall be mounted in Fire Rated Wall with flange connection.

3.6 Dampers shall be installed in accordance with the installation method recommended bythe manufacturer.

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16.0 FIRE DAMPER WITH FUSIBLE LINK AND SPRING TYPE MECHANISM

Fire dampers shall be CBRI type tested and certified for 90 minutes rating against collapse and frame

penetration as per UL 555-1995 as per details given at XI C.

Fire Dampers meeting the following specifications shall be supplied and installed. Dampers shallmeet the requirements of the latest edition of NFPA 90A, 92A, and 92B.

Dampers shall have a UL555S Leakage rating of Class I and a Temperature rating of 177 C.

Dampers shall have a UL555S operational airflow rating equal to or greater than the airflow at its

installed location and an operational pressure rating of 101.6 mm H2O.

Damper blades shall be 1.6 mm galvanized steel with Aerofoil design blade of thickness (1+1)mm.

Blades shall be completely symmetrical relative to their axle pivot point, presenting identical

resistance to airflow and operation in either direction through the damper (blades that are non-

symmetrical relative to their axle pivot point or utilize blade stops larger than 13 mm are

unacceptable).

Damper frames shall be galvanized steel formed into a structural hat channel shape with reinforced

corners. All component of stainless steel should be used in fire dampers Bearings shall be stainless

steel type rotating in extruded holes in the damper frame. Jamb seals shall be stainless steel

compression type.

FSD Specs 1

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