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Page 4 of 7 <br /> N!KING® FREEDOM° RESIDENTIAL <br /> TECHNICAL DATA CONCEALED HORIZONTAL <br /> SIDEWALL SPRINKLER VK490 <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. <br /> DESIGN CRITERIA <br /> (Also refer to the Approval Chart on page 3.) <br /> UL Listing Requirements(C-UL-US-EU): <br /> When using Viking Residential Concealed Horizontal Sidewall Sprinkler VK490 for systems designed to NFPA 13D or NFPA 13R.apply the listed areas <br /> of coverage and minimum water supply requirements shown in the Approval Chart on page 3 <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 above 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 /> • THE TOP OF THE SPRINKLER BODY AND THE TOP OF THE INSTALLATION WRENCH ARE MARKED"TOP".Orient the top of the sprinkler <br /> element parallel with the ceiling as shown in Figure 3. <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_091699-Care and Handling of Sprinklers.Also refer to Form No. F_080190 and F080415 <br /> for general care,installation,and maintenance information.Viking sprinklers are to be installed in accordance with the latest edition o_f Viking <br /> technical data, the appropriate standards of NFPA and any other similar Authorities Having Jurisdiction, and also with the provisions of <br /> governmental codes,ordinances,and standards,whenever applicable.Final approval and acceptance of all residential sprinkler installations <br /> must be obtained from the Authorities Having Jurisdiction. <br /> The internal design of the <br /> sprinkler wrench is shaped to fit <br /> over the sprinkler and protective <br /> cap to ensure that the top of the . r i490 <br /> wrench will be oriented in the <br /> same direction as the top of the i r m_ <br /> • rI <br /> sprinkler deflector. c <br /> O s` <br /> N ash/ <br /> Sprinkler Sprinkler body <br /> wrench <br /> Orient the sprinkler and <br /> wrench as shown then <br /> slide the wrench over <br /> the sprinkler body and <br /> the protective cap. <br /> Figure 2: Sprinkler VK490 Installation and Correct Use of Wrench <br /> Form No. F_032116 18.10.18 Rev 17.1.P65 <br />