Electric Power Door (EPD)  

Vertical Lift Door Interior Mounted Page - 1. CSI 3-Part Specifications.

ELECTRIC POWER DOOR
522 West 27th Street
Hibbing, Minnesota

S P E C I F I C A T I O N S

VERTICAL LIFT DOOR - TYPE I
INTERIOR MOUNTED

Part I - General

    A. Scope

      1. Work included: Work includes furnishing and installing electrically operated, interior mounted, Type I, Vertical Lift Door as shown and noted on drawings and specified herein as manufactured by Electric Power Door.

      2. Related work in other sections:

        a. Miscellaneous metals: Opening framing and preparation (header, jambs, sill)

        b. Field electrical wiring: Including conduit, wire, junction boxes, electrical disconnects, mounting of electrical components

        c. Finish painting

    B. Shop Drawings

      1. Complete detail and installation drawings covering electrically operated, interior mounted, Type I, Vertical Lift Door shall be submitted for approval. Drawings shall indicate construction details, clearance requirements, metal gauges, finish, electrical requirements, and design data.

Part II - Products

    A. Type I Vertical Lift Door Interior Mounted

      1. General requirements: The electrically operated, interior mounted, Type I, Vertical Lift Door shall be as specified and manufactured by Electric Power Door, 522 West 27th Street, Hibbing, Minnesota 55746, 1-800-346-5760.

      2. Materials: Materials used in the manufacture and installation of electrically operated, Type I, interior mounted, Vertical Lift Door shall be as follows:

        Structural Shapes and Plates --- ASTM A36
        Castings, Cast Iron ------------ ASTM A48
        Face Sheets -- Steel Sheet Metal, Flat,
        Hot Rolled, 14 Gauge Minimum--- ASTM A569

      3. Design criteria: Door shall be designed such that they will deflect not more than L/120 of their span under a minimum windload of 20 pounds per square foot. Door components shall be designed in accordance with the following specifications of latest adoption:

        Shapes, Plates, and Bars -- AISC Specification for the design, and erection of structural steel for buildings

        Sheet or Strip Metal -- AISI Specification for the design of cold-formed steel structural members

    B. Door Panel Construction

      1. Door panel frames shall be constructed of standard structural steel channel and angles of ample size and strength for loads and stresses imposed under the specified conditions. Intermediate panel frame members shall run vertically at not more than 2'- 0" on center. Door Panel frames shall be of welded construction and all joints shall develop the full strength of the framing members. All welds shall be per AWSD1.1 welding requirements. Door panel frames shall be sheeted on both sides with 14 gauge flat hot rolled steel which is welded to door panel. Welds to be 9" O.C.. Door panels shall be true to dimension and square in all direction. Door frame shall not be bowed, warped, or out of line by more than 1/8" in 20 feet. Exposed welds and welds which interfere with the installation of various parts shall be ground smooth. All exposed edges and seams of door sheeting on the exterior side of the door panel shall be caulked with Eclectic Brand E6100 caulk prior to prime painting.

      2. Insulation: Door sections shall be insulated with 2" of fibrous glass batt-type insulation, providing a U-value of .12 or less. The insulating material shall be fitted to cover the entire surface of the door panel between the structural members.

    C. Door Guide Construction

      1. Formed Plate Guides: Door guide assemblies shall consist of a series of structural shapes and plates arranged as shown on the plans. Guide assemblies shall be fabricated for field bolting or welding to the structural framing as required for a rigid installation. Minimum thickness of the door guide plate materials shall be 3/16". Door guide angles shall be 1/4" thick minimum.

      2. Counterweight: Steel plate sectional counterweight shall be provided to properly balance door leaves for easy operation. Cast iron counterweight will not be allowed. The counterweight shall be contained in a steel plate box which is suspended on cables attached to the doors operating over cast iron sheaves. Counter-weight box shall be guided throughout the full height of travel by a counterweight enclosure (tower) with internal guides. Counterweight guide tower material shall be 3/16" minimum.

      The counterweight tower shall be covered with 14 gauge steel to a height of 8'- 0" minimum above the finished floor.

    D. Hardware

      1. Provide hardware necessary for a complete installation. Hardware shall be heavy-duty type, including all bolts and fittings for the hardware as follows:

        a. Guide Rollers: The doors shall have a minimum of eight anti-friction bearing cam followers per panel. Two cam followers at each corner shall engage single angle steel door guides and guide the panels up and down. The cam followers shall be of sufficient size to transmit the windload from the door panel to the steel door guides. Metal to metal sliding guides will not be allowed.

        b. Cable System: Leaves shall be placed one behind the other with vertical travel so arranged that all leaves shall start to move at the same time, travel at differential speeds and arrive at their fully opened or closed position simultaneously. Provide all necessary wire rope, sheave assemblies, and fittings to make this system operable. Panel sheaves shall be mounted on the interior of the panel with easy access by removable covers. Wire ropes shall be designed to sustain the dead weight of door leaves plus 25% impact allowance with minimum safety factor of five. The ends of the wire ropes at door leaves shall be equipped with turnbuckles or other means for independent adjustment. Traction sheaves shall be 12" Ø minimum and idler sheaves shall be 8" Ø minimum. All idler sheaves shall be provided with sealed roller bearings. All cables supporting the doors and counterweight shall be 6x37 IWRC type.

        c. Weathering: Special wind lock seals to be dual durometer with flexibility to -40oF. They shall be push-on type with built-in wear strip. No external fasteners allowed. Air leakage not to exceed .42 CFM per linear foot of seal with a 25 MPH wind.

        d. Operating Unit: Doors shall be suspended on wire ropes reeved from leaves over traction sheaves to counterweights. Traction sheaves shall be driven by motor operator (specify if mounted on top of tower or at floor level) with auxiliary hand crank operation. Pull required on hand crank to open the door shall not exceed 20 pounds. Electric power operator shall be complete with electric gear motor, magnetic brake, brackets, pushbutton control, limit switches, magnetic reversing starter and other accessories specified and required. The power operator shall be designed such that the gear motor may be removed without disturbing the limit switch setting and without affecting the emergency auxiliary operators. Provisions shall be made for immediate emergency manual operation of door in the event of electrical failure. The emergency operating mechanism shall be arranged such that it can be placed in and out of operation from the floor and its use shall not affect the timing of the limit switches.

        Manual operation shall be by means of a hand crank connected to the drive system by a roller chain drive. A manual interlock switch shall be provided to disconnect the motor when the manual operating hand crank is engaged. Emergency operation of door by operating through the motor gearing will not be permitted.

          1. Gearmotor: Motor shall be high-starting torque type, with sufficient torque output to move door in either direction from any position and produce a door travel speed of not less than two-thirds, nor more than one foot per second, without exceeding the rated capacity. Motor shall be equipped with a magnetic brake. Motor shall conform to NEMA standards and shall be suitable for operation on 460V, 3 phase, 60 hertz current.

          2. Pushbuttons: Pushbuttons shall be located on the interior of the building where shown and shall be the three-button type, with the buttons marked "OPEN", "CLOSE", and "STOP". The "OPEN" button shall be of the type requiring only momentary pressure by the operator to cause the door to go from the closed to the fully open position. The "CLOSE" button shall require constant pressure from the operator to maintain the closing motion of the door. When the door is in motion and the "STOP" button is pressed, the door shall stop instantly and remain in the stop position; from the stop position, the door may then be operated in either direction by pushing the "OPEN" or "CLOSE" button. Push-buttons shall be NEMA 12 rated.

          3. Control Panel: Each door shall be furnished with a NEMA 12 control panel enclosure housing a reversing, across-the-line type magnetic motor starter having thermal-overload protection. The control panels shall contain relays, fuses, terminal strips, and other electronic components as required and necessary to provide the specified operating sequences. All components shall be prewired to the terminal strip and neatly labeled. Power circuits in excess of 200 volts shall be provided with control transformers to reduce voltage on the control circuit to 120 volts. Control panel assembly shall be U.L. Labeled.

          4. Limit Switches: Shall be NEMA rated snap-action type with an adjustable roller arm. Open, close, and reversing edge limits shall be mounted on the door counterweight tower and activated by a cam attached to the lower door panel. The motor operator limit switch shall be mounted on the operator.

        e. Reversing Device: The bottom edge of the lower leaf shall be equipped with a reversing device which will immediately stop and reverse the downward travel of the door upon contact with an obstruction in the door opening. The reversing device shall not substitute for a limit switch.

    E. Shop Painting

      1. Where required, all steel surfaces shall be painted with one shop coat of standard EPD primer.

    F. Electrical Work

      1. All wire, conduit, junction boxes, electrical disconnects, field wiring, and mounting of all electrical controls by others under Section: Field Electrical Wiring. The door manufacturer shall furnish all the controls (control panel, pushbuttons, limit switches, take-up reel, coil cord, etc.) but will not be required to install them.

Part III - Execution

    A. Installation

      1. Vertical lift door shall be installed in accordance with the Engineers' drawings, approved detail drawings, and the manufacturers' directions. All anchors and inserts to guides, brackets, motors, and other required work shall be accurately located. Upon completion of the installation, doors shall be free from warp, twist, or distortion and shall be lubricated and properly adjusted to operate freely and smoothly. The installation of the doors shall be by an authorized representative of the door manufacturer. Field wiring and mounting of the electrical components shall be done under the Electrical Section of the specifications instructions.

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