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Page 2 of 5 <br />'R= FREEDOM° RESIDENTIAL <br />CONCEALED PENDENT <br />N4 I Ki 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 />Specify finish and temperature rating of the cover plate assembly by adding the appropriate suffixes for the finish and the cover <br />temperature rating to the base part number: <br />Finish Suffix: Polished Chrome = F, Brushed Chrome = F-/B, Bright Brass = B, Antique Brass = B-/A, Brushed Brass = B-/B, Brushed <br />Copper = E-/B, Painted White = M-/W, Painted Ivory = MA, Painted Black = M-/B <br />Temperature Suffix: 135 °F/57 °C = A <br />For example, cover 13504 with a Polished Chrome finish and a 135 °F/57 °C temperature rating = 13504FA. <br />Available Finishes And Temperature Ratings: Refer to Table 1. <br />Accessories: (Also refer to the Viking website.) <br />Sprinkler Wrenches": <br />A. Heavy Duty Part No. 14047W/B** (available since 2006), or <br />B. Head Cabinet Wrench Part No. 14031 *** (available since 2006) <br />C. Optional Concealed Cover Plate Installer Tool Part No. 14412 (available since 2007) <br />D. Optional Large Concealed Cover Plate Installer Tool Part No. 14867 (available since 2007) <br />**Requires a ''/i' ratchet (not available from Viking). ***Also optional for removal of the protective cap. Ideal for sprinkler cabinets. <br />Sprinkler Cabinet: Part No. 01731A (available since 1971) <br />4. INSTALLATION <br />Refer to appropriate NFPA Installation Standards. <br />5. OPERATION <br />During fire conditions, when the temperature around the sprinkler approaches its operating temperature, the cover plate detaches, <br />releasing the deflector. Continued heating of the exposed sprinkler causes the heat -sensitive liquid in the glass bulb to expand, <br />causing the glass to shatter, releasing the yoke and pip cap and sealing spring assembly.. Water flowing through the sprinkler <br />orifice strikes the deflector, forming a uniform spray pattern over a specific area of coverage determined by the water supply pres- <br />sure at the sprinkler to extinguish or control the fire. <br />6. INSPECTIONS, TESTS AND MAINTENANCE <br />Refer to NFPA 25 for Inspection, Testing and Maintenance requirements. <br />7. AVAILABILITY <br />Viking Sprinkler Model VK494 is available through a network of domestic and international distributors. See The Viking Corporation <br />web site for the closest distributor or contact The Viking Corporation. <br />8. GUARANTEE <br />For details of warranty, refer to Viking's current list price schedule or contact Viking directly. <br />TABLE <br />1: AVAILABLE SPRINKLER <br />TEMPERATURE <br />RATINGS <br />AND FINISHES <br />Sprinkler <br />Sprinkler <br />Maximum <br />Temperature Rating <br />Cover <br />Large Square <br />Temperature <br />Nominal <br />Ambient <br />of the Cover <br />Plate <br />Cover Plate Cover Plate <br />Bulb Color <br />Classification <br />Temperature <br />Ceiling <br />Assembly <br />Base Part <br />Base Part Base Part <br />Rating' <br />Temperature <br />(Required)' <br />Number4 <br />Nurl Number <br />Ordinary <br />155 °F (68 °C) <br />100 °F (38 °C) <br />135 °F (57 °C) <br />13504 <br />13642 <br />15394 <br />Red <br />Intermediate <br />200 °F (93 °C) <br />150 °F (65 °C) <br />135 °F (57 °C) <br />13504 <br />13642 <br />15394 <br />Green <br />Sprinkler Finishes: <br />Brass and <br />ENT <br />Cover Plate Finishes: Polished Chrome, Brushed Chrome, Bright Brass, Antique Brass, Brushed Brass, Brushed Copper, Painted <br />White, Painted Ivory, or Painted Black <br />Corrosion Resistant Coatings5: ENT <br />Footnotes <br />The sprinkler temperature rating is stamped on the deflector. <br />2 Based on NFPA-13, NFPA 13R, and NFPA 13D. Other limits may apply, depending on fire loading, sprinkler location, and other requirements of the Authority Having <br />Jurisdiction. Refer to specific installation standards. <br />Maximum ambient temperature for cover assembly is 100 °F (38 °C). <br />° Part number shown is the base part number. For complete part number, refer to current Viking price list schedule. <br />The corrosion resistant coatings have passed the standard corrosion test required by the approving agencies indicated in the Approval Charts. These tests cannot and <br />do not represent all possible corrosive environments. Prior to installation, verify through the end -user that the coatings are compatible with or suitable for the proposed <br />environment. For automatic sprinklers, the ENT coating is applied to all exposed exterior surfaces, including the waterway. For ENT coated sprinklers, the Belleville spring <br />is exposed. <br />Form No. F_012116 17.04.20 Rev 17.2 <br />