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TFP176 Page 5 of 6 <br /> y - 5/8 ±1/4" Lc <br /> (15,9 ±6,4 mm) <br /> MOUNTING FACE OF WRENCH RECESS "A" USED FOR <br /> SURFACE SPRINKLER ^ ( 1 2" NPT MODELS) <br /> FITTING <br /> FIGURE 5 <br /> CLOSURE / – W -TYPE 6 SPRINKLER WRENCH <br /> ..101,Ng 2 -7/8" DIA. <br /> SERIES (73,0 mm) WRENCH <br /> RECESS <br /> TY -FRB i 2 -1/4" DIA. <br /> (57,2 mm) / � <br /> MOUNTING I � <br /> P <br /> Ar <br /> LATE / <br /> y , 1/8" PUSH WRENCH <br /> (3,2 mm) IN TO ENSURE <br /> ENGAGEMENT <br /> 1 -1/4" (31,8 mm) 3/4" (19,1 mm) WITH SPRINKLER <br /> 3/4" (19,1 mm) 1/4" (6,4 mm) <br /> WRENCHING AREA <br /> FIGURE 3 FIGURE 6 <br /> SERIES TY -FRB RECESSED HORIZONTAL SIDEWALL SPRINKLER W -TYPE 7 RECESSED <br /> WITH TWO -PIECE 3/4 INCH TOTAL ADJUSTMENT SPRINKLER WRENCH <br /> STYLE 10 RECESSED ESCUTCHEON <br /> y 1/2 ±1/8" must be replaced. <br /> (12,7 ±3,2 mm) Automatic sprinklers must never be <br /> painted, plated, coated or otherwise <br /> MOUNTING FACE OF altered after leaving the factory. Modi- <br /> SURFACE SPRINKLER fled sprinklers must be replaced. <br /> FITTING Sprinklers that have been exposed to <br /> corrosive products of combustion, but <br /> A have not operated, should be replaced <br /> I if they cannot be completely cleaned <br /> by wiping the sprinkler with a cloth or <br /> –411_,—,1 2 -7 / 8 " DIA. <br /> by brushing it with a soft bristle brush. <br /> SERIES (73,0 mm) Care must be exercised to avoid dam- <br /> age to the sprinklers - before, during, <br /> TY FRB <br /> t 111rAlril _- 2-1/4" <br /> mm) 4" DIA. and after installation. Sprinklers dam - <br /> (57,2 aged by dropping, striking, wrench <br /> twist/slippage, or the like, must be re- <br /> `� j placed. Also, replace any sprinkler <br /> MOUNTING , that has a cracked bulb or that has lost <br /> PLATE % . liquid from its bulb. (Ref. Installation <br /> Section). <br /> y Frequent visual inspections are rec- <br /> 1/8" ommended to be initially performed for <br /> (3,2 mm) corrosion resistant Boated sprinklers, <br /> after the installation has been com- <br /> 1-1/4" (31,8 mm) 1/2" (12,7 mm) pleted, to verify the integrity of the cor- <br /> rosion resistant coating. Thereafter, <br /> 1" (25,4 mm) 1/4" (6,4 mm) annual inspections per NFPA 25 <br /> should suffice; however, instead of in- <br /> FIGURE 4 specting from the floor level, a random <br /> SERIES TY -FRB RECESSED HORIZONTAL SIDEWALL SPRINKLER sampling of close -up visual inspec- <br /> WITH TWO -PIECE 1/2 INCH TOTAL ADJUSTMENT tions should be made, so as to better <br /> STYLE20 RECESSED ESCUTCHEON determine the exact sprinkler condi- <br /> tion and the long term integrity of the <br />