Drawings - Vol 6 of 7.pdf

Note:

Seismic sway braces shall consist of galvanized steel aircraft cables. Cables braces shall be designed to resist seismic tension loads with a minimum safety factor of 2. Brace end connections shall be steel assemblies that swivel to the final installation angle. Steel angles or struts, when required, shall be clamped to the threaded hanger rods at the seismic sway brace locations utilizing a minimum of two ductile iron clamps. Design incorporating brace assemblies, spring hangers, rod clamps, and cable brace assemblies, rod clamps shall be stamped by a licensed Civil or Structural Engineer.

Install seismic cable brace to that it is not tight. Vibration isolator will not work if seismic cable brace is tight.

The factory built breeching system shall be made in accordance with NFPA 211. This stack system shall be designed and installed to be gas tight. It shall be UL Listed to withstand up to 60" w.c. positive pressures. This breeching system shall be designed to compensate for all flue gas induced thermal expansions. Air space insulation between inner and outer pipe shall be 2 inches thick. Clearances to combustible materials shall be per installation instructions.

The double wall stack has an inner gas carrying pipe of 20 gauge type 316 stainless steel.

The outer jacket shall be 24 gauge 316 stainless steel. The materials and construction of the modular sections and accessories shall be as specified by the terms of the product’s UL Listing.