9803 19TH AVE SE 2018-01-02 MF Import

A SYSTEM DESIGN One of the key elements far restaurant fire protection is a cor- rect system design. This section is divided into ten sub -suctions: Nozzle Placement Requirements, Tank Quantity Requirements. Actuation and Expellant Gas Line Requirements, Distribution Piping Requirements. Detectior, System Requirements, Manual Pull Station Requirements, Mechanical Gas Valve Require- ments. Electrical Gas Valve Requirements, Electrical Switch Requirements, and Pressure Switch Requirements. Each of these sections must be completed before attempting any Instal- lation. System design sketches should be made of all aspects of design for reference during installation. NOZZLE PLACEMENT REQUIREMENTS This section gives guidelines for nozzle type, positioning, and quantity for plenum, duct, and individual appliance protection. This section must be completed before determining tank quan- tity and piping requirements. Duct Protection The R-102 system uses several different duct nozzles depending on the size of duct being protected. ► 1. 1 W Nozzle (Part No. 419336) - 1.5 Gallon and 3.0 Gallon Systems: The R-102 systems, both 1.5.gallon and 3.0 gallon, use the ► 1 W nozzle (Part No. 419336) for duct protection of 27 in. (68.6 cm) perimeter or less or 8.5 in. (21.6 cm) diameter or less. The nozzle tip is stamped with 1 W, indicating that this is a one -flow nozzle and is to be counted as one flow number. Single Nozzle (One Flow Number) Duct Protection: ► One 1 W nozzle (Part No. 419336) will protect ducts with a maximum perimeter of 27 in. (68.6 cm) or a maximum diameter of 8.5 in. (21.6 cm). The nozzle must be installed 2-8 in. (5-20 cm) into the center of the duct opening and positioned as shown in Figure 1. z-e IN is-20 FIGURE s SECTION IV - SYSTEM DESIGN fill- EX. 3470 7.1-96 Page 4.1 REV. 2 Single Nozzle (One Flow Number) Transition Protection: One 1 W nozzle (Part No. 419336) •, ll protect transi- tions where the perimeter of 27 in. 168.6 cm) or the diameter of 8.5 in. (21.6 cm) or less bL iins within trial transition. The nozzle must be placed h. the center of the transition opening where the maximum perimeter or diameter begins as shown in Figures 2 and 3. MODULE PERWFTER NOT MORE THAN n IN. tale aril MODULE DUAME" NOT MOUE THAN !.S IN. IV A M? NOTICE DUCT FIGURE 2 3L�1►II# A 2WH nozzle must be substituted for a 2W nozzle for any installation using Option 2 of the 1.5 gallon system coverage (6 flow duct and plenum protection only). ► 2. 2W Nozzle (Part No. 419337): The R-102 System, uses the 2W nozzle (Part No. 419337) for duct protection of 75 in. (190.5 cm) perimeter or less, or 24 in. (61 cm) diameter or less. The nozzle tip is stamped with 211 indicating that this is a two -flow nozzle and must be counted as two lbw numbers.