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Installation Steps <br /> Step 1: The installation requirements for the sprinkler are as follows: to be installed only in the pendent position with the <br /> waterway perpendicular to the ceiling. Install the sprinkler fitting so that the distance from the face of the fitting to the <br /> mounting surface will be nominally 2 inches (50.8mm) as shown in Figure 3. <br /> Step 2:With pipe thread sealant applied to the threads, hand tighten the sprinkler into the sprinkler fitting. Then tighten it <br /> with the Socket NR-H or Ratchet(3/8" drive) &Socket NR-H Combination (Ref. Figure 4). The teeth of the Socket must fit <br /> perfectly with the grooves on the Sprinkler for proper installation (Ref. Figure 4). <br /> Step 3: If desired, the Protective Cap may also be used to locate the center of the clearance hole by gently pushing the <br /> ceiling material against the center point of the Protective Cap. Before the installation of the ceiling,the sprinkler installation <br /> can be started with a 2-3/8 inch (60mm) diameter clearance hole (Ref. Figure 3). Use the "Vertical Adjustment" indicator <br /> on the Protective Cap to check for proper installation height (Ref. Figure 3). <br /> Make a Space Here Do Not <br /> Ave.1/4"(6.4mm) <br /> Min.1/8" 3.2mm Over-Tighten <br /> Groove on the Sprinkler <br /> Vertical - Protective <br /> f <br /> � Adjustment <br /> E <br /> m <br /> 0 <br /> Tooth on the Socket <br /> E <br /> N E <br /> ntig Socket NR-H <br /> Mou n <br /> Surface 2-3/8" 0 60mm Mounting Surface I'I I I E4 <br /> Ceiling Hale Diameter I <br /> Ratchet <br /> ■ <br /> Correct Incorrect <br /> Figure 3:Installation Figure 4:Ratchet&Socket <br /> Step 4: Use the Cap Removal Tool for RC to remove the Protective Cap (Ref. Figure 5), and then push or screw a Cover <br /> Plate Assembly on the Cup of the Sprinkler by hand until its flange just has contact with the ceiling (Ref. Figure 6 and <br /> Figure 7). Stop tightening the Cover Plate Assembly once the flange has contact with the ceiling. If the ceiling has been <br /> lifted from its normal position in the process of tightening the Cover Plate Assembly, readjust the cover plate assembly as <br /> necessary. If the flange of the Cover Plate Assembly cannot contact the ceiling sufficiently, readjust the sprinkler fitting as <br /> necessary. When properly installed, there is a nominal 1/16 inch (1.6mm) air gap between the lip of the Cover Plate and <br /> the ceiling, as shown in Figure 6. <br /> Hook Up <br /> Sprinkler Head <br /> re <br /> Protective Cap <br /> T <br /> Cap Removal Tool <br /> Pull down <br /> Step 1 Step 2 Step 3 <br /> Figure 5:Protective Cap Removal <br /> Iwww.senjusprinkler.com Page 6 of 8 Document No.U085168• 02-08-2021 <br />