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TFP176 <br />Page 5 of 6 <br />5/8t1/4" <br />(15,9t6,4 mm) <br />MOUNTING <br />FACE OF <br />SURFACE <br />SPRINKLER <br />FITTING <br />CLOSURE <br />2-7/8" DIA. <br />(73,0 mm) <br />SERIES <br />TY-FRB <br />2-1/4" DIA. <br />m) <br />MOUNTING <br />PLATE <br />1/8" <br />(3,2 mm) <br />1-1/4" (31,8 mm) <br />3/4" (19,1 mm) <br />3/4" (19,1 mm) <br />1/4" (6,4 mm) <br />FIGURE 3 <br />SERIES TY-FRB RECESSED HORIZONTAL SIDEWALL SPRINKLER <br />WITH TWO-PIECE 314 INCH TOTAL ADJUSTMENT <br />STYLE 10 RECESSED ESCUTCHEON <br />1/2t1/8" <br />(12,7t3,2 mm) <br />MOUNTING <br />FACE OF <br />SURFACE <br />SPRINKLER <br />FITTING <br />CLOSURE <br />2-7/8" DIA. <br />(73,0 mm) <br />SERIES <br />TY-FRB <br />2-1/4" DIA. <br />m) <br />MOUNTING <br />PLATE <br />1 /8" <br />(3,2 mm) <br />1-1/4" (31,8 mm) <br />1/2" (12,7 mm) <br />1" (25,4 mm) <br />1/4" (6,4 mm) <br />FIGURE 4 <br />SERIES TY-FRB RECESSED HORIZONTAL SIDEWALL SPRINKLER <br />WITH TWO-PIECE <br />112INCH TOTAL ADJUSTMENT <br />STYLE20 RECESSED ESCUTCHEON <br />WRENCH RECESS <br />(END "A" USED FOR <br />1/2" NPT MODELS) <br />FIGURE 5 <br />W-TYPE 6 SPRINKLER WRENCH <br />WRENCH <br />RECESS <br />) 1� I <br />PUSH WRENCH <br />IN TO ENSURE <br />ENGAGEMENT <br />WITH SPRINKLER <br />WRENCHINGAREA <br />FIGURE 6 <br />W-TYPE 7 RECESSED <br />SPRINKLER WRENCH <br />must be replaced. <br />Automatic sprinklers must never be <br />painted, plated, coated or otherwise <br />altered after leaving the factory. Modi- <br />fied sprinklers must be replaced. <br />Sprinklers that have been exposed to <br />corrosive products of combustion, but <br />have not operated, should be replaced <br />if they cannot be completely cleaned <br />by wiping the sprinkler with a cloth or <br />by brushing it with a soft bristle brush. <br />Care must be exercised to avoid dam- <br />age to the sprinklers - before, during, <br />and after installation. Sprinklers dam- <br />aged by dropping, striking, wrench <br />twist/slippage, or the like, must be re- <br />placed. Also, replace any sprinkler <br />that has a cracked bulb or that has lost <br />liquid from its bulb. (Ref. Installation <br />Section). <br />Frequent visual inspections are rec- <br />ommended to be initially performed for <br />corrosion resistant coated sprinklers, <br />after the installation has been com- <br />pleted, to verify the integrity of the cor- <br />rosion resistant coating. Thereafter, <br />annual inspections per NFPA 25 <br />should suffice; however, instead of in- <br />specting from the floor level, a random <br />sampling of close-up visual inspec- <br />tions should be made, so as to better <br />determine the exact sprinkler condi- <br />tion and the long term integrity of the <br />