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Page 6of6 TFPI51 ing the wax coating. Before wrench stalled or the finish coat has been ap- Installation tightening the sprinkler, the jaws of the plied, slide on the Style 10 or 40 Clo- wrench are to be adjusted to just con- sure over the Series TY-B Sprinkler The Series TY-B Sprinklers must be tact the sprinkler wrench flats. After and push the Closure over the Mount - installed in accordance with the follow- wrench tightening the sprinkler, loosen ing Plate until its flange comes in con- ing instructions: the wrench jaws before removing the tact with the ceiling. NOTES wrench. Do not install any bulb type sprinkler if After installation, the sprinkler wrench the bulb is cracked or there is a loss of flats and frame arms must be in liquid from the bulb. With the sprinkler spected and the wax coating re- held horizontally, a small air bubble touched (repaired) whenever the coat - should be present. The diameter of the ing has been damaged and bare metal air bubble is approximately 1/16 inch is exposed. The wax coating on the (1,6 mm) for the 135 °F /57 °C to 3/32 wrench flats can be retouched by gen- inch (2,4 mm) for the 360 °F /182 °C tly applying a heated 1/8 inch diameter temperature ratings. steel rod to the areas of wax that have tight 1/2 inch NPT s rinkler 'oint been damaged, to smooth it back over A leak ti g P 1 areas where bare metal is exposed. should be obtained with a torque of 7 to 14 ft.lbs. (9,5 to 19,0 Nm). A maxi- NOTES mum of 21 ft. lbs. (28,5 Nm) of torque Only retouching of the wax coating ap- may be used to install sprinklers with plied to the wrench flats and frame 1/2 NPT connections. A leak tight 3/4 arms is permitted, and the retouching inch NPT sprinkler joint should be ob- is to be performed only at the time of tained with a torque of 10 to 20 ft.lbs. the initial sprinkler installation. (13,4 to 26,8 Nm). A maximum of 30 ft.lbs. (40,7 Nm) of torque is to be used The steel rod should be heated only to to install sprinklers with 3/4 NPT con- the point at which it can begin to melt nections. Higher levels of torque may the wax, and appropriate precautions distort the sprinkler inlet and cause need to be taken, when handling the leakage or impairment of the sprinkler. heated rod, in order to prevent the installer from being burned. Do not attempt to make -up for insuffi- cient adjustment in the escutcheon If attempts to retouch the wax coating plate by under- or over - tightening the with complete coverage are unsuc- sprinkler. Readjust the position of the cessful, additional wax can be ordered sprinkler fitting to suit in the form of a wax stick (the end of which is color coded). Only the correct The Series TY -B Pendent and Up- color coded wax is to be used, and right Sprinklers must be installed in retouching of wrench flats and frame accordance with the following instruc- arms is only permitted at the time of tions. initial sprinkler installation. With the Step 1. Pendent sprinklers are to be steel rod heated as previously de- installed in the pendent position, and scribed, touch the rod to the area re- upright sprinklers are to be installed in quiring additional wax with the rod an- the upright position. gled downward, and then touch the 2. W ith pipe thread sealant a - wax stick to the rod approximately Step P P P one -half inch away from the area re- plied to the pipe threads, hand tighten quiring retouching. The wax will melt the sprinkler into the sprinkler fitting. and run down onto the sprinkler. Step 3. Tighten the sprinkler into the sprinkler fitting using only the W -Type The Series TY -B Recessed Pendent 6 Sprinkler Wrench (Ref. Figure 7), Sprinklers must be installed in ac- except that an 8 or 10 inch adjustable cordance with the following instruc- Crescent wrench is to be used for wax tions. coated sprinklers. With reference to Figures 1, 2, 3, and 4 the W -Type 7 Step A. After installing the Style 10 or Sprinkler Wrench or the adjustable 40 Mounting Plate, as applicable, over Crescent wrench, as applicable is to the sprinkler threads and with pipe be applied to the wrench flats. thread sealant applied to the pipe When installing wax coated sprinklers threads, hand tighten the sprinkler into g P the sprinkler fitting. with the adjustable Crescent wrench, additional care needs to be exercised Step B. Tighten the sprinkler into the to prevent damage to the wax coating sprinkler fitting using only the W -Type on the sprinkler wrench flats or frame 7 Recessed Sprinkler Wrench (Ref. arms and, consequently, exposure of Figure 8). With reference to Figure 3 or bare metal to the corrosive environ- 4, the W -Type 7 Recessed Sprinkler ment. The jaws of the wrench should Wrench is to be applied to the sprinkler be opened sufficiently wide to pass wrench flats. over the wrench flats without damag- Step C. After the ceiling has been in-