SECTION 033000 - CAST-IN-PLACE CONCRETE

Sludge Treatment Project Engineered Container Retrieval and Transfer System January 2012
SECTION 233113 - METAL DUCTS
PART 1 - GENERAL
1.1 RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including General and Supplementary
Conditions and Division 01 Specification Sections, apply to this Section.
1.2 SUMMARY
A. Section Includes:
1. Single-wall rectangular ducts and fittings.
2. Single-wall round ducts and fittings.
3. Sheet metal materials.
4. Sealants and gaskets.
5. Hangers and supports.
6. Seismic-restraint devices.
B. Related Sections:
1. Division 23 Section "Testing, Adjusting, and Balancing for HVAC" for testing, adjusting,
and balancing requirements for metal ducts.
2. Division 23 Section "Air Duct Accessories" for dampers, sound-control devices, ductmounting
access doors and panels, turning vanes, and flexible ducts.
1.3 PERFORMANCE REQUIREMENTS
A. Delegated Duct Design: Duct construction, including sheet metal thicknesses, seam and joint
construction, reinforcements, and hangers and supports, shall comply with SMACNA's "HVAC
Duct Construction Standards - Metal and Flexible"; SMACNA’s Round Industrial Duct
Construction Standards; SMACNA’s Rectangular Industrial Duct Construction Standards; and
performance requirements and design criteria indicated in "Duct Schedule" Article.
B. Structural Performance: Duct hangers and supports and seismic restraints shall withstand the
effects of gravity and seismic loads and stresses within limits and under conditions described in
SMACNA's "HVAC Duct Construction Standards - Metal and Flexible", “Round Industrial
Duct Construction Standards”, “Rectangular Industrial Duct Construction Standards”, and
ASCE/SEI 7. Loads shall be in accordance with Division 23, Section, “Vibration and Seismic
Controls for HVAC, Piping and Equipment”.
C. Airstream Surfaces: Surfaces in contact with the airstream shall comply with requirements in
ASHRAE 62.1-2004.
Contract 44577 KW Annex - Rev. E 44577-CSI-SPEC-001 233113 - 1