BNGR083323.02 Revision 1.pdf

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AMENDMENT 003

SECTION 083323.02 - COUNTER SHUTTERS

PART 1 - GENERAL

1.01 SUMMARY:

A. This section includes: Manual operated Rolling Counter-Shutter.

1. Cycle life: Design doors of standard construction for normal use of 10,000 cycles standard.

B. Related Sections: Related to this section, but not limited to, the following (based on Master Format 2004):

1. SECTION 01660 - PRODUCT STORAGE AND HANDLING REQUIREMENTS.

2. SECTION 04220 - CONCRETE UNIT MASONRY.

1.02 REFERENCES:

A. ASTM A653/A653M - Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or

Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process.

B. ASTM A36 - Standard Specification for Carbon Structural Steel, Hot Rolled Steel.

C. ASTM A123 - Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and

Steel Products.

D. ASTM A312 - Standard Specification for Seamless, Welded, and Heavily Cold Worked

Austenitic Stainless Steel Pipes.

E. ASTM A240 - Standard Specification for Chromium and Chromium-Nickel Stainless Steel

Plate, Sheet, and Strip for Pressure Vessels and for General Applications.

F. ASTM A276 - Standard Specification for Stainless Steel Bars and Shapes.

G. ASTM B209 - Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate.

H. ASTM B221 - Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes.

1.03 SUBMITTALS:

A. Submit under provisions of SECTION 01300.

B. Product Data: Provide manufacturer's standard details and catalog data. Provide installation instructions.

C. Shop Drawings: Furnish shop drawings for architect’s approval. Include elevation, sections, and details indicating dimensions, materials, finishes, conditions for anchorage and support of each door.

D. Submit manufacturer’s recommended operation, troubleshooting, and maintenance instructions.

1.04 QUALITY ASSURANCE:

A. Manufacturer: Rolling doors shall be manufactured by a firm with a minimum of five years experience.

B. Single-Source Responsibility: Manufacturer shall provide doors, tracks, motors, and accessories for each type of door. Secondary components shall come from a source acceptable to the manufacturer of the primary components.

1.05 DELIVERY, STORAGE, AND HANDLING:

A. Deliver materials in original packaging supplied by manufacturer with intact labels. Store materials away from harmful environmental conditions and construction.

SECTION 083323.02 - COUNTER SHUTTERS: continued

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1.06 WARRANTY:

A. Door Warranty: Provide one year written warranty from date of installation against deficiencies due to defects in materials or workmanship. Installer agrees to repair or replace any defects in materials or workmanship.

B. Project Warranty: Refer to Conditions of the Contract for project warranty provisions.

PART 2 - PRODUCTS

2.01 MANUFACTURER:

A. Manufacturer: Basis of design: COUNTER-SHUT Alpine Overhead Doors, Inc. or equal manufacturer and product.

2.02 MATERIALS

A. Curtain:

1. Slats: Constructed of interlocking, roll-formed 1-1/4" flat slats.

a. Material:

(1) ASTM 240 Stainless steel 300 series.

(2) Finish: #4 satin finish.

2. Endlocks:

a. Stamped, hot-dipped, galvanized endlocks riveted (solid rivets, minimum ¼” thick) to each end of alternate slats to prevent lateral movement and to limit slat deflection and bending stress.

3. Bottom Bar: (Match to slat material)

a. Two roll formed steel angles of minimum 1" x 1 1/2" x 1/8", designed to reinforce curtain bottom. (Size dependent on dimensions per manufacturer’s standard)

(1) ASTM 240 Stainless Steel 300 Series.

(2) Finish: #4 satin finish.

B. Guides:

1. Laser cut 12 gauge steel formed into box shape and fitted with removable bellmouth curtain stops to allow for curtain maintenance without removal of guides. Bellmouth stops shall be flush with guide groove. Bolt with 1/4" bolts at 12" o.c. Aluminum guides shall be equipped with wool pile runners to minimize wear.

a. Material:

(1) ASTM 240 Stainless Steel 300 Series

(2) Finish: #4 finish satin

C. Door Support Brackets and Mounting Plates:

1. Steel plate not less than 1/8" thick. Provide ball bearings at rotating support points. Bolt plates to wall mounting angles with minimum 1/4" fasteners. Plate supports counterbalance assembly and forms end closures.

a. Material:

(1) ASTM 240 Stainless Steel 300 Series.

(2) Finish: Mill Finish #2B.

b. Stop Lock bearing: To prevent door from free falling in the event drive operation fails.

D. Counterbalance Assembly: Torsion.

1. Counterbalance assembly: Steel pipe barrel of a size capable of carrying a curtain load with a maximum deflection of 0.03" per foot of door width. Heat-treated helical torsion springs encased in a steel pipe and designed to include an overload factor of 25% to ensure minimum effort to operate. Sealed and prelubricated high speed ball bearing at

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rotating support points. Torsion spring charge wheel for applying spring torque and for future adjustments.

a. Material:

(1) A 312 Stainless Steel 300 Series.

(2) Finish: Mill finish.

b. Life Cycle: High Cycle springs designed to satisfy 10m through 400m life cycles.

Consult engineering if height exceeds width for any cycle above 20m. (Cycle defined as one time opening and closing of door)

E. Hood:

1. 24 gauge steel. Formed to fit the contour of the end brackets with reinforced top and bottom edges. Provide support bracing for doors wider than 20 feet at every 10 feet to prevent excessive sag.

2. Shape: Square.

3. Material:

a. ASTM 240 Stainless Steel 300 Series:

b. Finish: #4 satin finish.

F. Locking:

1. Provide padlockable slide locks for latching and locking door on coil side bottom bar at each jamb extending into slots in guides.

2.03 OPERATION:

A. Opening/Closing: Manual push-up.

2.04 MOUNTING:

A. Exterior face mounted on prepared opening.

PART 3 - EXECUTION

3.01 EXAMINATION:

A. Verify that dimensions are correct and project conditions are in accordance with manufacturer's installation instructions; do not proceed with installation until unacceptable conditions have been corrected.

3.02 INSTALLATION:

A. Install units in accordance with manufacturer's instructions.

B. Ensure that units are installed plumb and true, free of warp or twist, and within tolerances specified by manufacturer for smooth operation.

C. Preparation for opening and installation of fire door to be in strict compliance with NPFA-80.

3.03 FIELD TESTING:

A. Test doors for regular operation.

3.04 DEMONSTRATION:

A. Instruct the Owner's personnel in correct operation and maintenance of units.

3.05 ADJUST AND CLEAN:

A. Clean units in accordance with manufacturer's instructions.

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B. Restore slight blemishes in finishes in accordance with manufacturer's instructions to match original finish. Remove and provide new units where repairs are not acceptable to the Architect.

END OF SECTION 083323.02