substitution request - Alliance Construction Solutions

PART 1 – GENERAL
1.01 DESCRIPTION OF WORK:
Project No.: 10145
550 15 th Street Dual Brand Hotel
03/16/2012
SECTION 23 3300
DUCTWORK ACCESSORIES
A. Types of ductwork accessories required for project include the following:
1.02 QUALITY ASSURANCE:
1. Manual Volume Dampers.
2. Control Dampers.
3. Counterbalanced Relief Dampers.
4. Fire Dampers.
5. Smoke Dampers.
6. Combination Fire/Smoke Dampers
7. Turning Vanes.
8. Duct Hardware.
9. Duct Access Doors.
10. Flexible Connections.
A. Manufacturer's Qualifications: Firms regularly engaged in manufacture of ductwork
accessories, of types and sizes required, whose products have been in satisfactory use in
similar service for not less than 5 years.
B. Industry Standards: Comply with ASHRAE recommendations pertaining to construction of
ductwork accessories, except as otherwise indicated.
C. UL Compliance: Fire dampers shall be constructed, tested, and labeled in accordance
with UL Standard 555, "Fire Dampers and Ceiling Dampers," and U.L. Standard 555S,
"Motor-Driven Fire/Smoke Dampers."
D. NFPA Compliance: Comply with applicable provisions of NFPA 90A, "Air Conditioning
and Ventilating Systems," pertaining to installation of ductwork accessories.
E. SMACNA Compliance: All exhaust ducts shall comply with "Fire Damper and Heat Stop
Guide."
F. All fire dampers, smoke dampers, fire/smoke dampers and radiation dampers shall meet
the latest local building code requirements.
1.03 SUBMITTALS:
A. Product Data: Submit manufacturer's technical product data for each type of ductwork
accessory, including dimensions, capacities, materials of construction, and installation
instructions.
23 3300 - 1 AIR DUCT ACCESSORIES