3625 BROADWAY SONIS KITCHEN 2025-01-03

R.102 Restaurant Fire Suppression Manua! SECTION 4 SYSTEM DESIGN SECTION 4—SYSTEM DESIGN R-102 Restaurant Fire Suppression Manual UL EX3470 ULC EX3470 UL EX3470 ULC EX3470 2014-SEP-Di REV.11 PAGE 4-71 PAGE 4-72 REV,11 2014-S£P-01 DETECTION SYSTEM REQUIREMENTS DETECTION SYSTEM REQUIREMENTS(Continued) Once the fire suppression system design has been determined, NOTICE a detection system design must be completed.This section Detector Placement Requirements(Continued) contains guidelines and limitations for detection system instal- COOi(ING APPLIANCES The conduit offset can be used at the top or lotion. E, If the cooking appliance is located under an exhaust duct where bottom of the regulated release to change a detector has been mounted,iI Is normally not necessary to direction of the conduit.The conduit offset j Detector Identification utilize another detector for that cooking appliance,provided the cannot be used with pulley tees.All other The two types of detectors are distinguished from each other b changes fit direction must be made b using yPe gW Y detector is not more than 12 in.(304 mm)Into the duct and the 9 Y (heir location In the detection system. AzOur'u°A�1 appliance has no larger cooling surface than 48 In.x 48 in. ANSUL approved pulley elbows (Par! No. 1.The Terminal Detector Is the last In a series of detectors, (1219 mm x 1219 mm).See Figure 4-141. 423254 or 415670).See Figure 4-142. or the only detector used in a single-detector system.This Note:If two appliances are located tinder a duct opening where detector Is thus named because it is at the point at which the a detector has been mounted and both appliances together wire rape ends,or"terminates." r do not exceed a cooking surface of 48 in.x 48 In.(1219 mm x 2.ASeties Detector is any detector located in-line between the I 1219 mm)and the detector Is located above both the protected i regulated release mechanism and the terminal detector. ` ---- appliances,it is not necessary to utilize an additional detector provided the dud detector is not more than 12In.(304 mm)into DetectorlPulley Elbow/Conduit Offset Design Limitations the duct opening, j 1.Conduit runs,pulley elbows,and number of detectors per FIGURE 4.1139 0 jsystem must be within the approved system guidelines.The ! a following requirements must not be exceeded: NOTICE Maximum MaximumMaximum When gas appliances are used and the flue Number of Number or Length of gases from the burner are exhausted into the Detectors Elbows ill in.Conduit n i) System per Sys[ent per System duct,the detector must be.kept out of the air 0 per stream of these exhaust gases.These gases Scissors Style 15 20 150 it(45.7 m) can be very hot and could actuate the system O I! Detector unnecessarily. (Without - Duct openings that are long and narrow or- Offset Conduit large enough to require multiple duct nozzles APPLIANOE APPUANCE APPLIANCE Scissors Style 15 is ISO It(45.7 m) may require additional detectors. SEOWREB COVso FO eY SEPARATE SEPARATE DETECTOR SEPARATE Detector(will DETECTOR UNDER DUCT DETECTOR FIGURE 4-142 Offset Conduit ELECTROSTATIC PRECIPITATOR - rovm 2.II are hazard requires more than 15 detectors,up to five if an electrostatic precipitator Is located at or near the base of Fusible Link Selection 101 Remote Releases(Part No.433485)can be used for FIGURE 4-141 the exhaust at k a necessary to locate l detector below the - When possible,temperature readings should he taken at each system actuation.Each 101 remote release allows the use precipitator,al the base of the duct.and also notate one In the a�rR p 9 _ of a maximum at 15`scissor"style detectors(14 series and duct,just above the precipitator.See Figure 4.140. - Each cooking appliance with a continuous cooking surface not detector location to determine correct fusible link temperature . i terminal)for a total of 75 detectors if needed. exceeding 48 In.x 48 In.(1219 IF 1219 mm)can be protected by rating.Temperature can be recorded using ellher a maximum When installing the detector bracket and system conduit,make a minimum of one detector.Cooking appliances with a continu- registering thermometer(Part No.15240)temperature tape or Detector Placement Requirements certain they do not interfere with the operation of the precipitator. ous cooking surface exceeding 48 in.x 48 in.(1219 x 1219 man) any other accurate thermometer. EXHAUST DUCTS Note:On secondary filtration units utilizing multiple filter stages/ must be protected by at least one detector per 48 In.x 48 in. Each exhaust duct must have al least one detector installed 'media,contact Technical Services ter instructions. (1219 x 1219 mm)cooking area.Detectors used for cooking 0 appliances must be located above the protected appliance In the duct entrance,located in the airstream of the cooking toward the exhaust duct side of the appliance.The detector vapors,or at a maximum of 20 8(8.0 m)into the duct opening. should he located in the air stream or the appliance to enhance See Figure 4-139 system response time. TEMPERATUS RATING y p STAMPED ON FUSIBLE Note:For overlapping detector coverage,see Page 4-60 for LINK BODY ' design requirements. Detection Line Requirements aW„o CONDUIT ' BLSTYLE me srne Rigid conduit or 112 inch EMT thin-wall conduit may be used. FIGURE 4-143 _ Standard steel conduit fittings(compression type are recom- Select correct UL Listed fusible Ilnk(s)for installation In detec- ' mended) must be employed to properly install the detection tors)according to the temperature condition.Two styles are i I system. All conduit or pipe must be firmly supported.When available. See Figure 4.143. See Component Section for _I using pipe,make certain that all ends are carefully reamed, detailed temperature ratings. deburred and blown clear of chips and scale before assembly. FIGURE 4-140 - mma I