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   PART 1 - GENERAL

    01 SECTION INCLUDES

    A. Overhead coiling service doors electrically operated with accessories and components.

    02 REFERENCE STANDARDS

    A. ASTM A446 - Standard Specifications for Steel Sheet, Zinc-Coated by the Hot-Dip Process, Structural Quality.

    B. ASTM A525 - General Requirements for Steel Sheet, Zinc-Coated (Galvanized) by the Hot-Dip Process.

    C. ASTM E152 - Methods for Fire Tests of Door Assemblies.

    D. ARDI-Standard Specifications for Rolling Service Doors.

    E. NEMA - National Electrical Manufacturer's Association.

    1.02 QUALITY ASSURANCE

    A. Overhead coiling service doors and all accessories and components required for complete and secure installations shall be manufactured as a system from one manufacturer.

    B. Unless otherwise acceptable to Architect, overhead coiling doors for entire project shall be manufactured by same manufacturer.

    1.03 SUBMITTALS

    A. Submit the following in accordance with Section 01340.

    B. Shop Drawings: Clearly indicate the following:

    1. Design and installation details to withstand required windload.

    2. All details required for complete operation and water/weathertight installations.

    3. Hardware locations.

    4. Type of metal and finish for curtain.

    5. Finish for miscellaneous components and accessories.

    6. Electrical requirements and information indicating installation and operation are in compliance with NEMA.

    7. Size and type of operator for motor-operated doors.

    C. Product Data: Indicating manufacturer's product data, roughing-in diagrams, and installation instructions. Include operating instructions, maintenance information, and electrical rough-in instructions.

    1.04 DELIVERY, HANDLING, STORAGE

    A. Products shall be delivered to job-site in original unopened packages bearing manufacturer's labels in accordance with Section 01631.

    B. Store and protect products in accordance with manufacturer's recommendations and Section 01620.

   PART 2 - PRODUCTS

    03 COILING SERVICE DOORS

    A. Type: Cookson's "ROLLING SERVICE DOORS", insulated overhead coiling service doors of steel construction complete as specified in this section and as manufactured by The Cookson Company/Gastonia, North Carolina.

    1. Windload Requirement: 20 psf.

    2. Size: As indicated on drawings.

    B. Type of Operation: Motor operated complete with Cookson's "Detectedge" vinyl-jacketed device mounted on bottom bar to stop or reverse rolling grille when it hits an obstruction, UL approved Class 2-24 Volt system, complying with UL Bulletin 325 which requires the use of this type of safety device on all power-operated doors when close button is not wired for constant pressure.

    C. Type of Mounting: Face of wall.

    D. Locking: Self-activating lock for motor operation.

    E. Finish:

    1. Curtain and Hood: G-90 hot-dipped galvanized conforming with ASTM A525 complete with factory-applied rust-inhibitive primer prepared for field-painting.

    2. All accessories shall be coated with factory-applied primer.

    3. Field-Coating: Exterior quality paint specified in Section 09900 of color to be selected by Architect.

    2.02 MATERIALS/COMPONENTS/FABRICATION

    A. Curtains for Insulated Doors: Two interlocking slats fabricated from hot-dipped galvanized steel, gage as required to meet windload requirements.

    1. Rigid insulation shall be "sandwiched" between the two slats.

    2. Type of Insulation: 3/4" thick expanded polyurethane, with flame spread not greater than 25, smoke development of 50 or less.

    3. Insulated doors shall be complete with heavy-duty extruded vinyl weatherstrips designed to reduce air infiltration and dust at any temperature. Weatherstrips shall be a replaceable type if damaged or torn.

    4. Bottom of curtain shall be reinforced with two steel angles.

    5. To seal entire door opening, a flexible solid foam astragal seal shall be placed at bottom of door and fitted into guides.

    B. Guides: Composed of three continuous steel angles bolted together to form a groove for the curtain, complete with stops.

    1. Depth of Guides: Shall provide adequate slat penetration to satisfy windload requirements.

    2. Windlock bars are required to prevent curtain from leaving guides under load.

    C. Brackets: Fabricated from steel plates of thickness required to meet design requirements.

    D. Gears: Heavy-duty cast iron type with teeth cast from machine-cut patterns.

    1. Gear Ratio: Shall be designed for a maximum manual effort of not more than 30 pounds.

    E. Barrel: Steel tubing of diameter and wall thickness to restrict maximum deflection of .03" per foot of door width.

    1. Springs: Helical torsion type designed to include an overload factor of 25% and for optimum ease of operation; grease packed.

    2. Spring Tension: Shall be adjustable by means of an exterior wheel.

    F. Hood: Fabricated of 24 gage steel, reinforced to prevent sagging in any width of opening.

    1. For Insulated Doors: Provide a waterproof canvas hood baffle to minimize seepage of air around the hood. This baffle shall be of type and quality that will remain flexible in cold weather while resisting tearing and cracking.

    G. Motor Operator: UL approved heavy-duty type consisting of the following components, which does not require the use of pull levers and chains:

    1. Heavy-duty hoist type motor.

    2. Gear box with gears designed to AGMA standards running in multi- temperature lubricant.

    3. Mechanical self-adjusting brake.

    4. Rotary limit switch.

    5. Motor Controller: NEMA 1, with overcurrent protection.

    6. Push-Button Station: NEMA 1-3, position type.

    7. Emergency chain operator which is operable when power is off.

    2.03 SUBSTITUTIONS

    A. The following manufacturers are acceptable only after compliance with requirements of this section:

    1. Atlas Door Corp/Edison, New Jersey.

    2. Cornell Iron Works Inc/Mountaintop, PA.

    3. Kinnear/Harsco Corp/Atlanta, GA.

    4. Overhead Door Company/Dallas, Texas.

   PART 3 - EXECUTION

    04 INSTALLATION

    A. General:

    1. Verify that existing conditions are ready to receive coiling door work.

    2. For motor-operated doors, coordinate door work with electrical requirements/Division 16.

    3. Beginning of coiling door work means acceptance of existing conditions.

    B. Install door and operating equipment complete with necessary hardware, jamb and head mold strips, anchors, inserts, hangers, and equipment supports in accordance with final shop drawings, manufacturer's instructions, and as specified herein.

    C. Fit, align and adjust coiling door assemblies level and plumb for smooth operation.

    D. The completed door assembly shall be water and weather-tight.

    E. Upon completion of installation lubricate, test and adjust doors to operate easily, free from warp, twist or distortion and fitting weathertight for entire perimeter.

    END OF SECTION