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Page 3 of 7 <br /> NIKING® <br /> TECHNICAL DATA ESFR PENDENT <br /> SPRINKLER VK510 (K25.2) <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 /> F. After installation and testing and repairing of all leaks, remove the protective caps from the sprinklers.Do NOT use any <br /> type of tool to remove the cap. Remove the cap by hand: turn it slightly and pull it off the sprinkler. When removing <br /> caps, use care to prevent dislodging or damaging sprinkler fusible element. THE CAPS MUST BE REMOVED FROM <br /> SPRINKLERS BEFORE PLACING THE SYSTEM IN SERVICE! <br /> 5. OPERATION <br /> During fire conditions, the heat-sensitive fusible element assembly disengages, releasing the seat and belleville spring assembly <br /> to open the waterway Water flowing through the sprinkler orifice strikes the sprinkler deflector, forming a uniform spray pattern to <br /> suppress the fire <br /> 6. INSPECTIONS, TESTS AND MAINTENANCE <br /> NOTICE <br /> The owner is responsible for maintaining the fire protection system and devices in proper operating condition. For <br /> minimum maintenance and inspection requirements, refer to the NFPA standard that describes care and maintenance <br /> of sprinkler systems. In addition, the Authorities Having Jurisdiction may have additional maintenance, testing, and <br /> inspection requirements that must be followed. <br /> A The sprinklers must be inspected on a regular basis for corrosion, mechanical damage, obstructions, paint, etc The frequency <br /> of inspections may vary due to corrosive atmosphere water supplies, and activity around the device <br /> B Sprinklers that have been painted or mechanically damaged must be replaced immediately. Sprinklers showing signs of corrosion <br /> shall be tested and/or replaced immediately as required Installation standards require sprinklers to be tested and, if necessary, <br /> replaced after a specified term of service For Viking ESFR Pendent Sprinklers, refer to the Installation Standards(e g , NFPA 25) <br /> and the Authorities Having Jurisdiction for the specified period of time after which testing and/or replacement is required Sprinklers <br /> that have operated cannot be reassembled or reused, but must be replaced When replacing sprinklers, use only new sprinklers <br /> C The sprinkler discharge pattern is critical for proper fire protection Therefore, nothing should be hung from, attached to, or <br /> otherwise obstruct the discharge pattern All obstructions must be immediately removed or, if necessary, additional sprinklers <br /> installed <br /> D When replacing existing sprinklers, the system must be removed from service Refer to the appropriate system description and/ <br /> or valve instructions Prior to removing the system from service, notify all Authorities Having Jurisdiction Consideration should <br /> be given to employment of a fire patrol in the affected area <br /> 1 Remove the system from service, drain all water, and relieve all pressure on the piping <br /> 2 Using the special sprinkler wrench, remove the old sprinkler and install the new unit Care must be taken to ensure that <br /> the replacement sprinkler is the proper model and style, with the correct orifice size, temperature rating, and response <br /> characteristics A fully stocked spare sprinkler cabinet should be provided for this purpose. <br /> 3 Place the system back in service and secure all valves Check the replaced sprinklers and repair all leaks. <br /> E Sprinkler systems that have been subject to a fire must be returned to service as soon as possible The entire system must <br /> be inspected for damage and repaired or replaced as necessary Sprinklers that have been exposed to corrosive products of <br /> combustion, but have not operated, should be replaced Refer to the Authorities Having Jurisdiction for minimum replacement <br /> requirements <br /> 7. AVAILABILITY <br /> The Viking Model VK510 Sprinkler is available through a network of domestic and international distributors See The Viking <br /> Corporation 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 /> Form No F_100102 22 04.13 Rev 22.1 <br />