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Page 2 of 5 <br /> NIKING® FREEDOM° RESIDENTIAL <br /> TECHNICAL DATA 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 /> 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= M-/I, 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'A"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 1:AVAILABLE SPRINKLER TEMPERATURE RATINGS AND FINISHES <br /> Sprinkler Sprinkler Maximum Temperature Rating Cover Large Square <br /> Temperature Nominal Ambient of the Cover Plate Cover Plate Cover Plate Bulb Color <br /> Classification Temperature Ceiling Assembly Base Part Base Part Base Part <br /> Rating' Temperature' (Required)' Number' Number' Number° <br /> Ordinary 155 °F (68°C) 100 °F (38 °C) 135 °F (57 °C) 13504 or 13642 or 15394 Red <br /> 218766 218756 <br /> Intermediate 200°F (93 °C) 150 °F (65°C) 135 °F (57 °C) 13504 or 13642 or 15394 Green <br /> 218766 218756 <br /> Sprinkler Finishes: Brass and ENT <br /> Cover Plate Finishes6: 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 /> 1. 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 /> a. Maximum ambient temperature for cover assembly is 100°F(38°C). <br /> 4. Part number shown is the base part number.For complete part number,refer to current Viking price list schedule. <br /> 5. 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 <br /> spring is exposed. <br /> 6. Stainless Steel versions are not available with any finishes or paint. <br /> Form No. F_012116 18.10.11 Rev 18.1.P65 <br />