Page 20 - CPVC Fire Sprinkler Products Installation Instructions & Technical Handbook

18
LISTINGS & APPROVALS
Requirements for Pipe, Fittings, Solvent Cement Systems, System Design, Installation, Freeze Protection, and Penetrating Fire Related Walls and Partitions are covered in this Installation Handbook. Read these sections carefully prior to designing or installing TYCO CPVC Pipe and Fittings for garage installations.
• Installation Requirements
- Protection: TYCO CPVC Pipe and Fittings shall be installed concealed behind protection consisting of a minimum of one layer of 3/8 in. (9,5 mm) thick gypsum wallboard or 1/2 in. (13 mm) thick plywood.
- Sprinkler Requirements: UL Listed, pendent or sidewall sprinklers with a 225°F (107°C) maximum temperature rating shall be utilized. All sprinklers shall be installed per the manufacturer’s published installation instructions.
- Installation Standard: The Listing for Garage Installations shall pertain to those occupancies defined by NFPA 13R.
System Risers (UL)
In accordance with the UL Listing, TYCO CPVC Pipe and Fittings may be used as system risers in accordance with NFPA 13, 13D, and 13R when subject to the following additional limitations:
1. When installed protected (concealed) in accordance with NFPA 13, 13D, and 13R, the minimum protection shall consist of either one layer of 3/8 in. (9,5 mm) thick gypsum wallboard or 1/2 in. (12,7 mm) thick plywood.
2. When installed without protection (exposed) in accordance with NFPA 13D and 13R, the following limitations shall apply:
- The riser shall be installed below a smooth, flat, horizontal ceiling construction. A Listed residential pendent sprinkler is to be installed with its deflector at the distance from the ceiling specified in the sprinkler Listing.
or
The riser shall be installed below a horizontal unfinished basement ceiling (in accordance with NFPA 13D) constructed utilizing solid wood joists or composite wood joists with a nominal depth of 16 in. (406,4 mm) or less on maximum 24 in. (609,6 mm) centers. A Listed residential pendent sprinkler is to be installed with its deflector a maximum of 1 3/4 in. (44,5 mm) below the bottom of the solid wood or composite wood joist in anticipation of the future installation of a finished ceiling.
- The Listed residential pendent sprinkler is to have 155°F (68°C) maximum temperature rating and a minimum K-factor of 4.9, and is to be installed at a maximum horizontal distance of 12 in. (305,0 mm) from the centerline of the riser. The system is to be designed based upon the Listed flows for the sprinkler selected except that the flow for a single sprinkler or multiple sprinklers shall not be less than 13 gpm (49,2 lpm) per sprinkler.
- The riser shall be supported vertically within 2 ft (610 mm) of the ceiling or bottom of the joist.
- The minimum riser diameter shall be 1 in. (DN25) and the maximum riser diameter shall be 2 in. (DN50).