SECTION 083600 – VERTICAL BI-FOLD DOORS

PART I – GENERAL

1.1 RELATED DOCUMENTS

  1. Drawings and general provisions of the Contract, including Genera Supplementary Conditions and Division I Specification Sections, apply to this Section.

1.2 SUMMARY

  1. This Section includes individually motor operated vertical bi-fold doors and defines the nature and quality of require doors and their minimum standards of construction and operation.
  1. Related Sections include the following:
  2. Division X Section (Storefront Division/Section?)
  3. Division X Section (Glass Division/Section?)
  4. Division X Section (Finish Division/Section) In case they want to anodize or paint
  5. Other Related Section

1.3 DEFINITIONS

  1. General: Vertical bi-fold doors for clearing opening __ft and __inches wide by __ft and __inches high and consisting of two (2) panel motor operated door system. Each door system to be complete with door frame, operators, brakes, controls, hardware, drive and lifting mechanism, weather, etc.

1.4 SYSTEM PERFORMANCE REQUIREMENTS

  1. General: The vertical bi-fold door system shall be designed so the door’s drive mechanism is mounted above the lintel, inside the building. The door panels shall be lifted by galvanized steel cables and powered by a variable-speed AC-Drive and 3-phase, industrial grade motors.

The requirements of International Building Codes (IBC) 2006 are to be included in the design and construction of this project.

  1. Door System Design:
  2. The door system shall rise as the galvanized steel cables wind up on the drive shaft. Operating personnel need only touch the “Open” or “Close” button momentarily to start the opening or closing sequence.
  3. Furnish for other trades all drawings and details for the loads and hinge locations of the door system so they can properly prepare the door opening for installation of the door system. As well, provide detail for the proper mounting of the drive mechanism above the door lintel.
  4. Without restricting the generality of the foregoing, the following shall be included:
  5. 6061-T6 aircraft-grade aluminum architectural tubing framing and bracing for door panels. If the frame is has to be spliced, all connections are to be bolt-together.
  6. Full depth horizontal girting to accommodate the exterior covering for the full height of the doors.
  7. If required (and if the door(s) meet the height requirement), full depth structural aluminum framed openings in the lower panel to receive a pass door and also allow for an ADA-compliant threshold.
  8. Self-aligning high load capacity track rollers.
  9. Building-mounted drive mechanism (above lintel).
  10. Complete, full-perimeter weather stripping.
  11. All required hardware for motor operation.
  12. One complete motor operator system.
  13. One complete set of electrical controls; push buttons, limit switches option. Variable-speed AC-Drive included.
  14. Variable-speed AC-Drive
  15. Galvanized steel lift cables
  16. Auto-lock mechanism automatically locks and unlocks door system. Or manual locking system with drive interlock.
  17. Door frame is mill finish. Components are stainless, galvanized or powder-coated. Drive assembly weldment is shop primed.
  18. Complete engineering drawings, calculations and required submittal completed by a degreed Mechanical Engineer. If required, drawings and calculations will be sealed by a registered professional engineer.
  19. Maintenance and operating manuals.
  20. Design criteria: Door structure shall be designed and constructed in accordance with IBC 2006. It shall consist of standard structural sections of ample size and strength for the loads and stresses imposed under the specified conditions. Structural shapes shall be in accordance with the Aluminum Association’s universally accepted shape definitions.
  21. The door frame shall be designed to withstand the required minimum external and/or internal wind load using Exposure C and Importance Factor of 1.0 per IBC 2006.
  22. The wind load deflections shall not exceed the door height in inches divided by 120.
  23. The fiber stresses in the door members due to combine dead and wind loads shall not exceed 14.7ksi.

1.5 SUBMITTALS

  1. Product Data: Include construction details, material descriptions, dimensions of individual components and profiles, and finishes for each type of the following vertical bi-fold door system components:
  2. Structural-framing system
  3. Electrical control system
  4. Door motor units
  5. Drive mechanism
  6. Accessories
  1. Shop Drawings: For the following vertical bi-fold door system components. Include plans, elevations, sections, details, and attachments to other Work.
  2. The door manufacturer shall submit for approval all design drawings and complete calculations of all structural, mechanical, electrical and operational features of the doors by a degreed Mechanical Engineer employed by the manufacturer. If required, a registered professional engineer licenses to practice in the project location shall be retained to review and seal the drawings and submittals. Field wiring diagrams, schematic wiring diagrams and physical location of electrical controls drawings shall be provided.
  3. Complete calculations shall be submitted with the shop drawings proving that a safety factor of 2 has been used to calculate the size of the doors rollers. To include both reaction and compression-force calculations.
  1. Qualification Data: For firms and persons specified in “Quality Assurance” Article to demonstrate their capabilities and experience. Include lists of completed projects with project names and addresses, names and addresses of architects and owners, and other information specified.
  1. Warranties: Special warranties specified in this Section.

1.6 QUALITY ASSURANCE

  1. Erector Qualifications: An experienced erector who has specialized in erecting and installing work similar in material, design, and extent to that indicated for this Project. The erector must be able to provide 24 hour emergency service.
  1. Mechanical Engineer Qualifications: A degreed mechanical engineer who is employed by the manufacturer must design and sign off on the product. Employing a contractual engineering firm for the design of the door is not acceptable. This person must be experience in vertical bi-fold door commercial applications. Upon request, the ME must be able to verify employment and degree.
  1. Professional Engineer Qualifications (if required): A professional engineer who is legally qualified to practice in jurisdiction where Project is located and who is experienced in providing engineering services of the kind indicated. Engineering services are defined as those performed for installations of hangar door systems that are similar to those indicated for this Project in material, design, and extent.
  1. Manufacturer Qualifications: A firm experience in manufacturing vertical bi-fold door systems similar to those indicated for this Project and with a record of successful in-service performance.
  2. Doors and operating mechanisms shall be manufactured by a door manufacturer who has been continuously engaged in the design, manufacture, and installation of aluminum vertical bi-fold doors over forty (40) years. The manufacturer will support with written evidence that they have designed, manufactured and installed a minimum of ten (10) aluminum vertical bi-fold commercial door systems which have been in satisfactory operation for a minimum of three (3) years.
  3. Written evidence will include at least ten (10) aluminum vertical bi-fold door installations made by their company. Such list shall include name of installation, location, owner, date installed and specific data as to size of doors, type of operators, brake systems, safety devices, operating systems, weather-stripping, etc. Written evidence shall list only door installations that have been designed and manufactured by the submitting door manufacturer.
  4. Engineering Responsibility: Preparation of shop drawings, testing program development, test results interpretation, and comprehensive engineering analysis by a qualified mechanical engineer.
  1. Source Limitations: Obtain each type of the aluminum vertical bi-fold door system component through one source from a single manufacturer.

1.7 DELIVERY, STORAGE, AND HANDLING

  1. Deliver components, panels, and other manufactured items so as not to be damaged or deformed. Package items as required for protection during transportation and handling.
  1. Handling: Unload, store on timbers or pallets above ground level to prevent bending, warping, twisting and surface damage.
  1. Stack materials on platforms or pallets, covered with tarpaulins or other suitable weather tight and ventilated covering. Do not store material in contact with other materials that might cause staining, denting, or other surface damage.

1.8 PROJECT CONDITIONS

  1. Weather Limitations: Proceed with installation only when weather conditions permit work to be performed according to manufacturer’s written instructions and warranty requirements.
  1. Field Measurements: Verify door opening by field measurements after the building has been erected and indicate measurements on Shop Drawings. Coordinate fabrication schedule with construction progress to avoid delaying the Work.
  2. Established Dimensions for Doors: Where field measurements cannot be made without delaying the Work, either establish framing and opening dimensions and proceed with fabrication of the door leaves without field measurements. Coordinate the door opening construction to ensure that actual building dimensions, locations of structural members, and openings correspond to established dimensions.

1.9 WARRANTY

  1. General Warranty: Special warranties specified in this Article shall not deprive Owner of other rights Owner may have under other provisions of the Contract Documents and shall be in addition to, and run concurrent with, other warranties made by Contractor under requirements of the Contract Documents.
  2. Warranty Period: One year from date of Substantial Completion.
  3. One complete manual containing instructions for proper operation and maintenance of the doors shall be furnished to the Owner. They shall contain complete:
  4. Operating instructions
  5. Maintenance instructions
  6. Information on points to be lubricated, type of lubricant and frequency of lubrication.
  7. Recommendations of parts to be serviced and adjusted and the frequency of adjustment.
  8. A comprehensive list of spare parts

PART 2 – PRODUCTS

2.1 MANUFACTURERS

  1. Manufacturers: Subject to compliance with requirements, provide products by one of the following:
  2. Wilson Industrial Doors
  3. ?
  1. If the Contractor uses any other manufacturer other than those listed above, the Contractor must obtain a spate, specific Performance Bond from the door manufacturer equal to the cost of the vertical bi-fold door contract cost.

2.2 STRUCTURAL MATERIALS

  1. Structural Aluminum tubing shapes: Aluminum Association
  1. Steel Tubing or Pipe: ASTM A 500, Grade B, ASTM A 501; or ASTM A 53, Grade B
  2. High-Strength Bolts, Nuts, and Washers: SAE J429-Grade 5, heavy hex steel structural bolts, heavy hex carbon-steel nuts, and hardened carbon-steel washers.
  3. Finish: Mechanically deposited zinc coating, ASTM B 695, Class 50.
  4. Direct-Tension Indicators: ASTM F 959, Type 325 or Type 490.
  5. Finish: Mechanically deposited zinc coating, ASTM B 695, Class 50, epoxy coated.

2.3 MISCELLANEOUS MATERIALS

  1. Finish Painting: Refer to Division 9 Section “Painting.” Anodizing reference?

2.4 FABRICATION, GENERAL

  1. Door Panel Construction:
  2. Door panel construction shall be 6061-T6 architectural aluminum tubing manufactured in the United States. The sizes and number of members will be determined by the door size, wind load and the door’s covering. The smallest tube used in ANY application however is 3 inch by 2 inch.
  3. If a pass door is required in the bottom panel, a framed opening will be provided to install the door (door by others). The bottom threshold will be ADA-compliant, yet still provide structural integrity to tie the frame members together. Manufacturer must provide documentation that they have completed a project with this design requirement. Shop drawings and customer reference must be provided for verification.
  4. Door members in sizes suitable for convenient shipping shall be bolted and/or welded construction. Joints shall develop 100 percent of the strength of the framing members. The sections and framing members of which they are composed shall be true to dimension and square in all directions and shall not be out of line more than 1 1/8 inch to 20 feet. Vertical and horizontal member adjacent to each other and/or being joined together in the field shall be accurately prepared to facilitate field assembly. All field connections shall be bolted together. Field connections requiring welding are not acceptable. Full depth members spaced vertically shall be provided for proper lateral support of inside and outside flanges for all main members.
  5. Door panel rollers shall be self-aligning, high-load capacity track rollers. Rollers must also incorporate a wind lock device to keep the rollers on the track face in the event of a sudden gust of wind in the full open or closed positions.
  6. Fabrication of door sections shall be done in jigs so as to hold the sections to specified tolerances. Exposed welds and welds which interfere with the installation of various parts, such as exterior panels and liner panels, etc, shall be ground smooth.
  7. Welders employed to weld the frame together shall be certified welders.
  1. Weathering: Material, which is adjustable and readily replaceable, shall be provided at all necessary vertical edges, heads and sills to afford a substantially weather-tight installation.
  2. Material on the bottom of the door shall be a rubber bulb seal. Weather on the bottom of the door shall be retained continuously by aluminum keeper channel for its full length and secured with rust resistant fasteners on twelve (12) inch centers. Vinyl fabric is not acceptable. Material on the top of the door shall be either .075” thick EPDM fabric insert sheet rubber or 1.25” thick EPDM adhesive backed foam.
  3. Vertical weather stripping at the jambs shall be attached to the door with an acrylic PSA adhesive that is resilient in temperatures from 200 degrees Fahrenheit to 020 degrees Fahrenheit. The material shall be EPDM SC-42, .625” inches thick.
  4. Weathering shall be properly fitted and adjusted to close all openings.
  1. Drive shaft and lifting cables: Mechanism for which the door is safely and efficiently lifted and lowered.
  2. The drive shaft shall be galvanized Sch 40 pipe and have a minimum O.D. of 2 ½. The drive shaft drums shall be galvanized and be, at a minimum of 3 inches in diameter. The drums must be an integral part of the drive shaft – welded into place. A drive shaft of solid bar stock is unacceptable.
  3. The drive shaft is to be mounted above the lintel of the door, inside the building. The shaft must run continuously and run through sealed bearings.
  4. Pick up cables shall be numerous and large enough to provide a 5 to 1 safety factor. The cables shall be a minimum of 3/16” thick galvanized aircraft cable. The lift cables cannot be threaded through pulleys, but fastened directly to fixed bottom door pick-up points. Lift straps are not acceptable.
  1. Automatic locks: automatically lock and unlock the door with a momentary push of a button. Only two types of locking mechanisms shall be acceptable.
  2. Linear actuators; electrically driven actuators that positively lock and unlock the door through an electrical signal from the control box. Actuators lock and unlock the door by simply momentarily pushing one button on the control station.
  3. Magnetic locks: Strong Magni-Lock magnetic lock provides clean, secure locking and unlocking of the vertical bi-fold door. Along with the powerful locking system, a stainless steel assist handle shall be provided.
  4. With either locking system, the door shall come equipped with thru-beam photo eyes. Reflective photo eyes are not acceptable. The pho eyes will be pre-set and tested as the factory. The door system’s operating program will be written such that, if the pho eyes beam is broken, the door reverses and stays in the open position until physically reset. No other logic is acceptable.
  1. Power Operation: All electrical components must be designed to meet National Electric Code (NEC) Section 513. Standard voltage shall be 230 Volt, three-phase (other voltage available).
  2. The power drive units shall consist of a gear head motor with high-speed shaft brake. The necessary roller chains, sprockets, take-up devices necessary to drive the door shall be provided.
  3. The drive motor(s) shall be induction type, sized to operate the door under zero wind load conditions at not more than 75% of their rated capacity; motors shall be rated for door operation duty and shall be normal starting torque type. They shall be wound for service converted by the drive at 230 volt, three-phase, 60 hertz.
  4. The gear reduction units shall be of the highest quality, worm gear double-reduction of commercial manufacture and shall have internal continuous lubrication. The units shall be of a type which allows a reversal of effort through the gears without damage to the gears. The gears shall be non-self-locking and be rated AGMA standard.
  5. The high speed shaft brakes shall be integral with the motors and shall be the spring set magnetic solenoid release disc type with an auxiliary auto-resetting manual release. Plunger and lever brake mechanics are unacceptable.
  1. Electrical Controls: The door manufacturer shall furnish the doors with the proper electrical equipment and controls, built in accordance with the latest NEMA Standards. All equipment, power and control circuits shall be installed in accordance with the National Electrical Code, Standard No. 70, and the requirements of authority having jurisdiction. Any equipment located eighteen (18) inches or less above the floor shall be explosion proof.
  2. Ascent variable-speed AC-Drive shall be enclosed in a NEMA 12-rated enclosure with a circuit breaker type disconnect and shall be factory wired, tested and equipped with overload and under voltage protection, electrical interlocks, relays, timing devices and transformers for the control circuits. A wiring diagram shall be placed on the inside of each enclosure cover.
  3. The Ascent AC-Drive slowly starts the door and then increases the speed of the door after its initial start up. At the top of the door’s stroke, the Ascent Drive slows the door until it stops and only then does the brake engage.

The programmable logic controller controls the sequence of the door’s operation and is synced with the Ascent AC-Drive.