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Provide with the top guide system specified in Section 05120 STRUCTURAL
STEEL. Provide cloth-inserted neoprene weathering fastened to top of door
leaves to engage the head flashing when doors are closed.
2.1.11
Fasteners
Either zinc-coated or cadmium-plated steel.
2.1.12
Sealant
Single-component or multicomponent elastomeric type conforming to ASTM C 920,
Type S or M, Grade NS, Class 12.5, Use NT. Provide a sealant that has been
tested on the types of substrate to which it will be applied.
2.1.13
Primer
Red iron oxide, zinc oxide type, SSPC Paint 25.
2.1.14
Starters
Provide magnetic reversing starters in NEMA ICS 1, Type 12 enclosures
equipped with access door-controlled, fused safety disconnect switches.
Starters shall be factory wired with overload and undervoltage protection,
mechanical and electrical interlocks, auxiliary contacts, relays and timing
devices as required, control circuit transformers, and a numbered terminal
strip. The control circuit transformer shall reduce the voltage in the
control circuits to 115 volts or less, and shall conform to UL 506.
2.1.15
Electrical
Provide conduit, wire, flexible cables, boxes, devices, and accessories [,
and install trolley duct,] under Section 16402 INTERIOR DISTRIBUTION
SYSTEM. If permanent electrical power is not available when door
installation is complete, provide temporary power under Section 16402
INTERIOR DISTRBUTION SYSTEM, for testing and adjusting the doors.
2.2
FABRICATION
2.2.1
Doors
2.2.1.1
Frames and Framing
Door leaves shall be of welded or bolted construction. Joints shall
develop 100 percent of the strength of the framing members. Vertical
members shall be continuous throughout the height of the door. When
required, prepare splices to facilitate field assembly in accordance with
standard practice. Frames and framing members shall be true to dimensions
and square in all directions; no leaf shall be bowed, warped, or out of
line in the vertical or horizontal plane of the door opening by more than
one mm in 2 meters 1/8 inch in 20 feet. Provide diagonal bracing so that
the completed leaf assembly will be braced to withstand shipping, assembly,
and operational loads. Exposed welds and welds which interfere with the
installation of various parts such as cover sheets shall be ground smooth.
2.2.1.2
Exterior Covering and Interior Liner Sheets
Flat sheets shall be fastened to the frame either by edge welding, plug
SECTION 08342
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