20-470 - Laserfiche WebLink

Browse Search

R-102 Restaurant Fire Suppression Manual SECTION 4—SYSTEM DESIGN UL EX3470 ULC EX3470 2014-SEP-01 REV. 11 PAGE 4-1 SYSTEM DESIGN GENERAL INFORMATION The ANSUL R-102 Restaurant Fire Suppression System may be 1. Nozzles must be located 2-8 in. (51-203 mm)into the center used on a number of different types of restaurant cooking appli- of the duct opening, discharging up. See Figure 4-1. ances and hood and duct configurations.The design information listed in this section deals with the limitations and parameters of this pre-engineered system. Those individuals responsible for the design of the R-102 system must be trained and hold a current ANSUL certificate in an R-102 training program. The R-102 and the PIRANHA systems use compatible agents and components, therefore, they may be used together for cooking appliance, hood, and duct protection. The primary AUTOMAN Release can be either an R-102 or a PIRANHA AUTOMAN Release and can actuate up to two additional R-102 or PIRANHA Regulated Actuators. In systems utilizing a 101 2-8 IN. remote release, any combination of the maximum number of (51—203 mm) regulated actuators can be used. t • Both systems must actuate simultaneously. • Each system must be designed and installed per its appropri- FIGURE 4-1 ate manual. ow,,, • Adjacent appliances requiring protection must be protected 2. In installations where a UL listed damper assembly is with the same type of system, either R-102 or PIRANHA, employed, the duct nozzle can be installed beyond the 8 unless the center-to-center spacing between the adjacent in. (203 mm) maximum, to a point just beyond the damper R-102 and PIRANHA nozzles is no less than 36 in. (914 mm). assembly that will not interfere with the damper. Exceeding • .When appliances are protected with R-102 nozzles, the the maximum of 8 in. (203 mm) in this way will not void the hood and connecting duct above those appliances cannot be UL listing u the system. protected with PIRANHA nozzles. g y • Mixing systems in a common plenum is not allowed. 3. Previously listed three flow number and five flow number One of the key elements for restaurant fire protection is a correct duct protection detailed in earlier published manual(Part No. system design. This section is divided into 10 sub-sections: 418087-06) can also still be utilized. Nozzle Placement Requirements,Tank Quantity Requirements, DUCT SIZES UP TO 50 IN. (1270 mm) Actuation and Expellant Gas Line Requirements, Distribution PERIMETER/16 IN. (406 mm) DIAMETER Piping Requirements, Detection System Requirements, Manual Pull Station Requirements, Mechanical Gas Valve One 1 W nozzle=one flow number Requirements, Electrical Gas Valve Requirements, Electrical 50 in. (1270 mm) perimeter maximum Switch Requirements, and Pressure Switch Requirements. 16 in. (406 mm)diameter maximum Each of these sections must be completed before attempting any installation. System design sketches should be made of all DUCT SIZES UP TO 100 IN. (2540 mm) aspects of design for reference during installation. PERIMETER/32 IN. (812 mm) DIAMETER NOZZLE PLACEMENT REQUIREMENTS One 2W nozzle=two flow numbers This section gives guidelines for nozzle type, positioning, and 100 in. (2540 mm) perimeter maximum quantity for duct, plenum, and individual appliance protection. . 32 in. (812 mm)diameter maximum This section must be completed before determining tank quan- tity and piping requirements. The chart below shows the maximum protection available from each duct nozzle. Duct Protection—Single Nozzle 3.0 Gallon 1.5 Gallon All duct protection is UL listed without limitation of maximum duct Description System System length (unlimited length).This includes all varieties of ductworks 2W Nozzle Maximum Maximum both horizontal and vertical including ducts that run at angles to 100 in. (2540 mm) 100 in. (2540 mm) the horizontal and ducts with directional bends. Perimeter Perimeter ►Note: Ducts from multiple hoods connected to a common 1 W Nozzle Maximum Maximum ductwork must be protected in compliance with NFPA 96 and 50 in. (1270 mm) 50 in. (1270 mm) ►all local codes. Perimeter Perimeter The R-102 system uses different duct nozzles depending on the size of duct being protected.