Reinforcement Channel: To CSA G40.20/G40.21, coating designation to ASTM A653/A653M, ZF75 (A25). Structural Plate: Hot rolled steel to ASTM A1011. Fabrication: Manufacture doors and in accordance with ASTM E90. Steel Doors, Overhead Door Type. Sheet steel faces, thickness, design, and core suitable to achieve specified acoustic performance. Acoustic construction, mechanically inter-locked shall be welded, filled and sanded with visible edge seams. Top and bottom channels shall be full width and shall form a ship-lap joint between sections. Weld structural steel channels flush to top and bottom of door. Weld hardware reinforcement plates in place. Install glazing. Affix permanent metal nameplates to door and frame, indicating manufacturer's name, door tag, model number, and performance rating. Threshold and perimeter seals to be factory supplied. Glazing shall be factory supplied and pre-installed. Glazing shall be factory supplied and shipped loose ready for site installation by others. Primer: Rust inhibitive zinc chromate. Factory Finish: Factory applied zinc chromate primer to be applied to all exposed surfaces. Factory Finish: Factory applied zinc chromate primer touch-up only, where product has been welded and ground smooth. Finish Painting: Field finish painting as scheduled. The electric operator shall have the following characteristics: The unit shall be UL approved. The unit shall have a heavy duty worm-gear reducer with a standard NEMA "C" flange. The unit shall have a minimum 220 volt, 3 phase motor and shall be TEFC. Electromechanical Rotary screw type limit switches. Manual operation chain hoist. Electrical interlock for manual operation. Door speed 8 inches to10 inches (203 mm to 254 mm) per second. Door Controls and Electrical Equipment: The door control shall have integral piggyback control panel. The door shall have a separate control panel located at the ground level. This panel shall be provided by Division 16. The controls will include a heavy duty revering starter. Thermal overload relays. Control relays. Time delay on reversing. Timer to close the door. Miller reversing safety bar on the bottom of the door.
Reinforcement Channel: To CSA G40.20/G40.21, coating designation to ASTM A653/A653M, ZF75 (A25). Structural Plate: Hot rolled steel to ASTM A1011. Fabrication: Manufacture doors and in accordance with ASTM E90. Steel Doors, Overhead Door Type. Sheet steel faces, thickness, design, and core suitable to achieve specified acoustic performance. Acoustic construction, mechanically inter-locked shall be welded, filled and sanded with visible edge seams. Top and bottom channels shall be full width and shall form a ship-lap joint between sections. Weld structural steel channels flush to top and bottom of door. Weld hardware reinforcement plates in place. Install glazing. Affix permanent metal nameplates to door and frame, indicating manufacturer's name, door tag, model number, and performance rating. Threshold and perimeter seals to be factory supplied. Glazing shall be factory supplied and pre-installed. Glazing shall be factory supplied and shipped loose ready for site installation by others. Primer: Rust inhibitive zinc chromate. Factory Finish: Factory applied zinc chromate primer to be applied to all exposed surfaces. Factory Finish: Factory applied zinc chromate primer touch-up only, where product has been welded and ground smooth. Finish Painting: Field finish painting as scheduled. The electric operator shall have the following characteristics: The unit shall be UL approved. The unit shall have a heavy duty worm-gear reducer with a standard NEMA "C" flange. The unit shall have a minimum 220 volt, 3 phase motor and shall be TEFC. Electromechanical Rotary screw type limit switches. Manual operation chain hoist. Electrical interlock for manual operation. Door speed 8 inches to10 inches (203 mm to 254 mm) per second. Door Controls and Electrical Equipment: The door control shall have integral piggyback control panel. The door shall have a separate control panel located at the ground level. This panel shall be provided by Division 16. The controls will include a heavy duty revering starter. Thermal overload relays. Control relays. Time delay on reversing. Timer to close the door. Miller reversing safety bar on the bottom of the door.