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EX4991 March 2,2007 <br /> 06NK23629 <br /> �/ 1. Introduction <br /> For ceiling heights of 35 ft,40 ft, and 45 ft, the fire protection performance of the Tyco <br /> K-16.8 Control Mode Specific Application(CMSA) sprinkler sprinklers has only been <br /> evaluated in dry pipe systems for protection of rack storages of Class II and III <br /> commodities jl). <br /> The purpose of this program is to evaluate protection of 40 ft high Class III commodity <br /> storage in a 48 ft high building using a thy-pipe system and Tyco K-16.8 upright CMSP <br /> sprinklers rated at 286°F. The sprinkler spacing was at 10 ft by 10 ft and the sprinkler <br /> deflector to ceiling distance was 7 inch. The sprinkler discharge pressure was maintained <br /> at 30 psig with a discharge rate of 92 gpm per sprinkler. <br /> 2. Test Facility, Commodity and Storage Arrangements <br /> 2.1 Test Facility <br /> The fire tests were conducted in Underwriters Laboratories large-scale fife test facility <br /> located in Northbrook, Illinois. The large-scale fire test building used for this <br /> investigation houses four test areas that are used to develop data on the fire growth and <br /> fire suppression characteristics of commodities, as well as the fire protection performance <br /> ( of automatic water sprinkler systems. A schematic of the test facility is shown in Figure <br /> V 1. <br /> Mr Lil <br /> a <br /> r,r ADD Test Fatty <br /> I Lan Seals 111 El] <br /> nit tut Ready r ' <br /> �,,,.xaerupu Cstmpetv86DD <br /> PAPA T:,tFxdty <br /> 4oniitinny^'+> LL Phe[vyae <br /> Fran <br /> Figure 1.Test Facility <br /> The fire tests were conducted in a 120 ft.by 120 ft. by 54 ft. high room fitted with a 100 <br /> ft.by 100 ft. adjustable height ceiling, which can be set at various heights. <br /> 1 <br />