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3 l General Installation Instructions Maintenance Model F3QR dry sprinklers must be installed only in stan- The Model F3QR Quick Response Dry Sprinklers should dard (ANSI B 16.3 class 150 and ANSI B 16.4 class 125) be inspected and the sprinkler system maintained in accor- pipe tees in the horizontal position,even at branch line ends. dance with NFPA 25. Do not remove the factory applied They should not be installed into elbows or pipe couplings thermally sensitive wax fillet between the bulb supporting located on drop nipples to the sprinklers. For these and cup and the wrenching boss. Do not replace this wax with a other fittings including CPVC", the dry sprinkler should be substitute substance. An Alternate substance may interfere installed into a fitting to allow protrusion into the fitting in ac- with proper operation of the sprinkler.Do not clean sprinklers cordance with the diagrams. The "A" dimension of the dry with soap and water, ammonia or any other cleaning fluids. sprinkler,which extends into the freezers or a freezing zone Remove dust by using a soft brush or gently vacuuming. from wet pipe systems, should be selected to provide, as a Remove any sprinkler which has been painted (other than minimum,the specified lengths in inches shown in Fig. 10. factory applied) or damaged in any way. A stock of spare Caution: sprinklers should be maintained to allow quick replacement Do not install Model F3QR Dry sprinklers into CPVC of damaged or operated sprinklers. Prior to installation, adapter fittings or tees that have an internal obstruction. sprinklers should be maintained in the original cartons and This will damage the sprinkler and/or the fitting. Refer to packaging until used to minimize the potential for damage Fig. 11. to sprinklers that would cause improper operation or non- operation. During installation, the following steps must be followed: Caution: Use specified by RASCO wrenches only, which are 1. Cut the specified size hole(see illustrations)for the sprin- designed to engage sprinkler's wrenching pad. (Fig. 15, kler in the ceiling or wall directly in line with the tee. page 9) 2. Apply pipe joint compound to the 1" (25mm) pipe threads and install sprinkler using the Model F3 or XLO2 Sprinkler Wrench as specified. 3. Install the Model FP push-on /thread-off escutcheon or CCP cover plate if required. Note: Installation of the Model F3QR Sprinklers is not rec- ommended in copper pipe systems, as this may reduce the life expectancy of the sprinklers. Model F3QR Concealed and Recessed In- stallation Instructions • The Model XLO2 wrench (Fig. 12) is designed to lo- cate on the wrenching pads of the recessed sprin- kler while centering in the cup. A standard '/2" drive ratchet may be used to drive this wrench. Fig. 13 and Fig. 14 show sequentially the insertion of the wrench. First the wrench, with its jaws above the sprinkler de- flector, is moved laterally until centered with the cup. Then raise the wrench inside of the cup until its jaws engage the sprinkler's square wrenching pads (Fig. 14). To remove the wrench, follow this procedure in reverse order. Care should be taken to avoid striking the deflector, with the wrench. • Model F3 Wrench (Fig. 15) is used for installation of Pendent and Horizontal Sidewall sprinklers. • Glass bulb sprinklers have orange bulb protectors to minimize bulb damage during shipping, handling and installation. REMOVE THIS PROTECTION AT THE TIME THE SPRINKLER SYSTEM IS PLACED IN SER- VICE FOR FIRE PROTECTION. Removal of the pro- tectors before this time may leave the bulb vulnerable to damage. RASCO wrenches are designed to install sprinklers when covers are in place. REMOVE PRO- TECTORS BY UNDOING THE CLASP BY HAND. DO NOT USE TOOLS TO REMOVE THE PROTECTORS. 6.