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� , . SECTION IV - SYSTEM DESIGN ' UL EX.3470 ULC CEx747 Page 4-� 4-1-06 REV.6 �� SYSTEM DESIGN GENERAL INFORMATION The ANSUL R-102 Restaurant Fire Suppression System may be 1.Nozzles must be located 2-8 in.{5-20 cm)into the center of the used on a number of different types of restaurant cooking appli- duct opening,discharging up.See Figure 1. ances and hood and duct configurations.The design information lis#ed 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 certi#icate 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 ANSIJL AUfOMAN Release can be either an R-102 or a PIRANHA AfVSUL AUTOMAN Release and can actuate up to two additional ..-=�� R-102 or PIRANHA Regulated Actuators. In systems utilizing a 101 remote rel�ase, any combina6on of ihe maximum Rumber of • regulated ac#uatbrs can be used. 2-8iN: cs—2o cm) �- � Both systems must actuate simultaneously. • Each system must be designed and installed.per its=appropri- FIGURE 1 ate manuaf. °0°"� m Adjacent appliances requiring protection must be protected 2•�n 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 installec] beyond the 8 in. unless the center-#o-center spacing between the adjacent (20 cm) maximum,to a poini just beyond the damper assem- R-102 and PIRANHA nozzles is no less than 36 inches. bly that will not interfere with the damper.Exceeding the maxi- � When appliances are protected with R-102 nozzles, the hood mum of 8 in.(20 cm) in this way will not void the UL listing of and connecting duct above those appliances cannot be pro- the system. tected with PIRANHA nozzles. 3.Previously listed 3 flow number and 5 flow number duct pro- � Mixing systems in a common plenum is not aflowed. tection detailed in earlier published rrjanua�, Part No_418087- One of the key elements for restaurant fire protection is a correct ��n also still by utilized. system design.This section is dnrided inio ten sub-sections:fVoz- DUCT SIZES UP TO 50 IfV.(127 cm) �^ zle Placement Requirements,7ank Quantity Requirements,Actu- PERIMETER/16 tN_(41 cm)DIAMETER ation and Expellant Gas Line Requirements, Distribution Piping Requirements, Detection System Requirements, Manual Pull Sta- '• One 1 W nozzle(Part No.419336)=one flow number tion Requirements, Mechanical Gas Valve Requirements, Electri- . 50 in.(127 cm)perimeter maximum cal Gas Valve Requirements,Electrical Switch Requirements,and Pressure Switch Requirements. Each of these sections must be • 16 in.(41 cm)diameter maximum completed before attempting any installation. System design sketches should be made of ail aspects of design for reierence DUCT SIZES UP TO 100 IN.(254 cm) during installation. PERIMETER/32 IN.(81.3 cm) DIAMETER NOZLLE PLACEMENT RE�UIREMEIVTS • One 2W Nozzle(Part No.419337)-two flow numbers This section gives guidelines for nozzle rype, positioning, and • 100 in.(254 cm)perimeter maximum quantity for duct,plenum,and individual appliance protection.This � 32 in.(81.3 cm)diameter maximum section must be completed before determining tank quantity and . A 2WH nozzle (Part No.78078) must be substituted for a 2W piping requirements. nozzle for any installation using Option 2 of the 1.5 gallon sys- Duct Protection-Single(doale' tem coverage(duct and plenum protection only).A 2WH noale . All duct profection is UL listed wi�out limitation of maximum duct �s limited to a maximum of 75 in.{190 cm)perimeter or a maxi- length (unlimited length).This includes all varieties of ductvuorks mum diameter of 24 in_(61 cm}of coverage. both horizontal and vertical including ducis that run at angles to fihe chart below shows the maximum protection available from the horizontal and ducts with directional bends_ each duct nozzle_ The R-i 02 system uses different duct nozzles depending on the Part 3.0 Gallon 1.5 Gallon size of duct being protected. Description No. System System ' ' 2W Nozzle 419337 Maximum Maximum 100 in.(254 cm) 100 in.(254 cm) Perimeter Perimeter ► 1 W Nozzle 419336 Maximum Maximum - 50 in.(127'cm) 50 in.(127 cm) Perimeter Perimeter ,.�