Laserfiche WebLink
. . <br /> SECTION 4—SYSTEM DESIGN F-YO2 Restaurant Fire Suppression Manual <br /> ULE%3470 ULCEX347O <br /> PAGE4'SO REV. 11 2014-SEP'01 <br /> OVERLAPPING NOZZLE COVERAGE(Con0nued) <br /> Overlapping Appliance Nozzle and Hazard Zone Locations 4. On protected appliances, all hazard surfaces located ina <br /> —Group Protection (Continued) group must be within 40-45 in. (1016-1143 mm) from the <br /> 2. When obstructions are located adjacent to appliance(s) nozz|o(o). Once that dimension is oxcoedod, a new group <br /> mun1be�od�d SeoFigunn4'1�0 <br /> pno�u�dbynvodapping nozzles,the ovodappingoppUanoo ' ' <br /> nozzle spacing must start with the appUonoe(m) adjacent Vo Note:The supply pipe feeding nozzle groups in0obeat the <br /> the obstruction.See Figure 4'118. same elevation.Adjust height for each group only byvarying <br /> lengths of nozzle drops. <br /> uss/m 255/w uso/w 255/w <br /> 11.5/m <br /> END OF <br /> OUTSIDE NOZZLES ZONE <br /> EDGE OF NOZZLES <br /> COOKING 401N. <br /> HAZARD AREA <br /> OBSTRUCTION <br /> On continuous appliance protection,start and end with 245 <br /> nozzles and 260 nozzle(s)in the middle. <br /> FIGURE 4-11$ <br /> =1713 r------GROUP"A­ GROUP"B­� <br /> Q. When an appliance requires dedicated protection with e Note:On group appliance protection,,tart and end m EACH zone <br /> protected area intended for overlapping omuvmumm,p�°m,ommu�0000.� <br /> apping appliance nozzle F|GURE4-13O <br /> protection, the group protection option will be required for 007&39 <br /> appliances on either side of the appliances using dedicated <br /> protection. Group protection using overlapping appliance Detection Requirements For Overlapping Appliance <br /> nozzles must begin with the protected app|ianoa(o)adjacent ps»t»rtkon <br /> 0o the dedicated appliance protected.An overlapping apP|i- When utilizing overlapping appliance protection, fusible link <br /> ancenozz!e(u) must be positioned within 11.5 in. (2g2mm) detectors must be installed ona maximum of2 ft(U.6m)centers, <br /> cd the odge(e)of the appliance hazard surface o»oo(s)adja- starting with detectors located|n (undeh the duct upening(m). <br /> cent 10 the dedicated nozzle protection. See Figure 4-11S. <br /> Starting from the detector under the duct opening,add detectors <br /> nn2ft(0.Om)maximum spacing until the complete length ofthe <br /> plenum area ia covered,from one end tothe other.The location <br /> F7 mf the last detector on each end of the plenum must not exceed <br /> EDGE OF COOKING 2It(O.Om)from end ofplenum. <br /> HAZARD <br /> Note: Standard detector placement can also be utilized when <br /> using overlapping protection. However,the overlapping detector <br /> (292 option cannot be used vvhenuU|� st <br /> andard <br /> ��--- ~ Refer bo Pages 4-71 -4-73 for de�^�orplacement. <br /> EDGE OF COOKING COOKING <br /> HAZARD HAZARD <br /> tMAXIMUM OF <br /> DEDICATED NOZZLE <br /> xppLmwos <br /> Note:On group appliance protection,start and and m EACH zone <br /> group must o"protected with aumnozzle. <br /> FIGURE 4-119 <br /> 001756 <br />