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Page 4 of 5 <br /> 3K FREEDOM° RESIDENTIAL <br /> CONCEALED PENDENT <br /> SPRINKLER VK494 (K4.9) <br /> The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058 <br /> Telephone: 269-945-9501 Technical Services: 877-384-5464 Fax: 269-818-1680 Email: techsvcs@vikingcorp.com <br /> Visit the Viking website for the latest edition of this technical data page www.vikinggroupinc.com <br /> DESIGN CRITERIA <br /> (Also refer to the Approval Chart on page 3.) <br /> UL Listing Reguirements(C-UL-US-EU): <br /> When using Viking Residential Concealed Pendent Sprinkler VK494 for systems designed to NFPA 13D or NFPA 13R,apply the listed areas of cover- <br /> age and minimum water supply requirements shown in the Approval Chart. <br /> For systems designed to NFPA 13:The number of design sprinklers is to be the four contiguous most hydraulically demanding sprinklers.The minimum <br /> required discharge from each of the four sprinklers is to be the greater of the following: <br /> • The flow rates given in the Approval Chart for NFPA 13D and NFPA 13R applications for each listed area of coverage, or <br /> • Calculated based on a minimum discharge of 0.1 gpm/sq.ft.over the"design area"in accordance with sections 8.5.2.1 or 8.6.2.1.2 of NFPA 13. <br /> • Minimum distance between residential sprinklers: 8 ft. (2.4 m). <br /> NOTE: Concealed sprinklers must be installed in neutral or negative pressure plenums only. <br /> IMPORTANT.Always refer to Bulletin Form No. F 080415-Best Practices for Residential Sprinkler Handling and Installation. <br /> Also refer to Form No. F 080614 for general care, installation, and maintenance information. Viking sprinklers are to be in- <br /> stalled in accordance with the latest edition of Viking technical data,the appropriate standards of NFPA and any other similar <br /> Authorities Having Jurisdiction, and also with the provisions of governmental codes, ordinances, and standards, whenever <br /> applicable. Final approval and acceptance of all residential sprinkler installations must be obtained from the Authorities <br /> Having Jurisdiction. <br /> Sprinkler and Adapter Assembly 2-1/4" (57 mm) <br /> • Protective cap removed <br /> • Use wrench 14047W/B** diameter opening <br /> required in the <br /> ceiling. <br /> Sprinkler Wrench <br /> Part No. 14047W/B** <br /> Step 1: Step 2: 1 1 <br /> Carefully slide the Carefully press the wrench upward and <br /> wrench sideways around turn slightly to ensure engagement with <br /> the deflector and pins the sprinkler wrench flats. <br /> Sprinkler <br /> wrench flat <br /> NEVER install the sprinkler by applying the installation Sprinkler <br /> wrench across the frame arms. DO NOT overtighten. frame arms <br /> Use only the designated sprinkler wrenches, Viking <br /> Part Numbers 14047W/B** or 14031**.A leak tight seal <br /> should be achieved by turning the sprinkler clockwise <br /> 1 to 1-1/2 turns beyond finger tight. <br /> Figure 1: Sprinkler Installation and Proper Wrench Usage <br /> ink A 1/2"ratchet is required(Not available from Viking) <br /> Form No. F_012116 17.04.20 Rev 17.2 <br />