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Sprinkler 124f January 17, 2014
<br /> C
<br /> ESFR PENDENT
<br /> SPRINKLER VK510 (K25.2)
<br /> -NIKJNG4
<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 /> E.After installation,the entire sprinkler system must be tested.The test must be conducted to comply with the Installation Standards.
<br /> Make sure the sprinkler has been properly tightened. If a thread leak occurs, normally the unit must be removed, new pipe-joint
<br /> compound or tape applied,and then reinstalled.This is due to the fact that when the joint seal is damaged,the sealing compound
<br /> or tape is washed out of the joint. Immediately replace any damaged units, using the special sprinkler wrench only.
<br /> F. After installation and testing and repairing of all leaks, remove the protective caps from the sprinklers. Do NOT use
<br /> any type of tool to remove the cap. Remove the cap by hand: turn it slightly and pull it off the sprinkler. When remov-
<br /> ing 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: The owner is responsible for maintaining the fire protection system and devices in proper operating condition. For mini-
<br /> mum maintenance and inspection requirements, refer to the NFPA standard that describes care and maintenance of sprinkler
<br /> systems. In addition, the Authorities Having Jurisdiction may have additional maintenance, testing, and inspection requirements
<br /> 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/or
<br /> valve instructions. Prior to removing the system from service, notify all Authorities Having Jurisdiction. Consideration should be
<br /> 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 the
<br /> replacement sprinkler is the proper model and style, with the correct orifice size, temperature rating, and response character-
<br /> istics.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 Replaces page 124a-f, dated March 28, 2013.
<br /> (UL 1767 Note.)
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