2702 HOYT AVE 2018-01-02 MF Import

March 2, 2007 VIKING' 0 Dry 101e DRY PIPE SPRINKLER SYSTEM The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058 Telephone: 269-945-9501 Technical Services: 877.384.5464 Fax: 269-818.1680 Email: techsvcs@vikingcorp.com D. SEMI-ANNUAL TEST 1. Complete a weekly lest of the system. 2. Water flow test: Observe the water pressure gauge, open the test drain valve fully, record the pressure drop. Check the reading against the previously recorded reading. If reading differs greatly, a supply valve may be partially closed, or there may be an obstruction in the supply line. Correct the problem immediately. 3. Close test drain valve slowly. E. ANNUAL TEST 1. Complete a semi-annual test. 2. Open the inspector's test valve The dry pipe valve and accelerator should trip, and water must flow from the inspector's lest. Alarms will sound and the system will fill with water. 3. Re -set the system. See Placing The System In Service. F. TROUBLESHOOTING 1. If the alarm fails to sound on test: clean strainers in the alarm line and water motor. If the alarm still fails, call your Viking representative. 2. If there is excessive dripping from the drip check: Follow those precautions in the emergency procedure and turn off water and remove hand -hole cover. Trip the valve; clean the water seat and reset. If the valve still leaks, call your Viking repre- sentative. 3. If the accelerator does not trip on test, or will not set: Call your Viking Representative. 4 If the valve trips without the sprinkler opening. remove and clean the drip check. Check for excessive water hammer in the supply by using an indicating gauge. If water hammer is indicated, increase the air pressure in accordance with the chart using the maximum pressure indicated in the water hammer. Check the dependability of the air supply; and make sure air supply valves are open. A maintenance air compressor or a maintenance device is highly recommended for maintaining system air pressure regardless of climatic conditions. 5 If the supply pressure gauge drops on the flow lest: Immediately check roadway valve and post indicator or control valve. If both are open, immediately call your Viking representative, because a line obstruction is indicated. 6 If the system pressure is low Make sure proper valves are closed. Add maintenance device or maintenance air compres- sor 7. If the dry valve will not latch Check to see that the water seat is clean and that there are no stones or foreign objects in the valve. If the valve still will not latch, immediately call your Viking representative. 8 If the valve trips when the alarm is tested: Open and clean the check valve in the alarm line G. MAINTENANCE 1. Dry Valve: Conduct system tests as described and see the appropriate device page. 2. Accelerator: Trip annually and see the appropriate device page. 3. Water Motor Alarm. a. Clean alarm line strainer. b. Clean water motor alarm strainer. c Check condition of alarm by operating d. Check bell for obstructions 4. Air Maintenance Device: Inspect, replace or clean filler, and see the appropriate device page. 5 Air Compressor. See manufacturer's maintenance instructions 6. Sprinklers a. Maintain a supply of replacement heads b. Sprinklers should be kept free of debris. c Never suspend objects from sprinkler heads. d Sprinklers must not be painted or coated except by the manufacturer or an authorized representative. e Check sprinklers for mechanical damage. If the lever mechanism is loose or the frame is damaged, replace the spnn- kier. f. Fused or damaged sprinklers cannot be repaired They must be replaced. g. Use the special sprinkler wrench when replacing heads to prevent damage. H. EMERGENCY INSTRUCTIONS 1. Make sure fire is OUT! Make a complete inspection of all areas covered by the system including areas not involved in fire. Place a fire watch throughout the entire area until the system is back in service. 2. - Close the water supply control valve and drain the system piping. Open dry pipe test drain valve. 3. Replace all operated and damaged sprinklers with the same type and temperature rating as were removed.