2702 HOYT AVE 2018-01-02 MF Import

Mach 28, 2013 M11"MiNk0i DRY VALVE MODEL F-1 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 2. Verify that the intermediate chamber of the dry valve is free of water. No water should flow from the drip check when the plunger is pushed 3 If equipped with a Viking accelerator. a. Check the air pressure gauge located on the top of the accelerator Air pressure in the upper chamber of the accelerator should equ31 the pneumatic pressure maintained in the system NOTE: STANDARD TOLERANCE ALLOWANCE IN PRESSURE GAUGE CALIBRATION MAY RESULT IN A SLIGHT VARIATION WHEN PRESSURE READINGS FROM ANY TWO GAUGES ARE COMPARED. A DIFFERENCE IN PRESSURES OTHER THAN SLIGHT VARIATION DUE TO GAUGE CALIBRATION TOLERANCE MAY INDICATE MAINTENANCE IS REQUIRED. REFER TO TECHNICAL DATA FOR THE ACCELERATOR USED. b. or dry systems with Viking Accelerators installed according to the Viking Model E-1 Accelerator Trim Chart, vent' that the %,' (15 mm) anti -flood isolation valve is OPEN and secured. 4 Verify that the water supply main control valve is open and all trim valves are in their normal operating position. 5. Check for signs of mechanical damage and/or corrosive activity If detected, perform maint3nance as required or, if necessary, replace the device 6 Verify that dry valve and trim are adequately heated and protected from freezing and physical damage li. TESTS Quarterly Tests A. Water Flow Alarm Test Quarterly testing of water flow alarms is recommended and may be required by the Authority Having Jurisdiction 1 Notify the Authority Having Jurisdiction and those in the area affected by the test NOTE: VIKING CONVENTIONAL TRIM PROVIDES A CONNECTION FOR INSTALLATION OF A NON -INTERRUPTIBLE PRES- SURE SWITCH. ALARMS AND/OR ELECTRIC PANELS CONTROLLED BY AN ALARM PRESSURE SWITCH INSTALLED IN THAT CONNECTION CANNOT BE INTERRUPI ED. (See Dry Valve Trim Chart ) 2 Fully open the main dram (located on the base of the dry valve) to flush away any accumulation of foreign material 3 Close the main drain. 4 To test the local electric alarm (if provided) and/or mechanical water motor gong (if provided). OPEN the alarm test valve in the dry valve trim a Electric alarm pressure switches (if provided) should activate. b Electric local alarms should be audible c The local water motor gong should be audible of Verify that (if provided) remote station alarm signals were received. 5 When testing is complete, close the alarm test valve 6 Verify a All local alarms stop sounding and alarm panels (d provided) reset. to All remote station alarms reset. c All supply piping to water motor properly drains 7 Verify that the alarm shut-off valve in the dry valve trim is OPEN, and the alarm test valve rs CLOSED 8 Verify that the intermediate chamber of the dry valve is free of water No waver should flow from the drip check when the plunger is pushed 9 Notify the Authority Having Jurisdiction and those in the affected area that testing is complete. B. Main Drain Test Quarterly performance of the Main Dram Test is recommended and may be required byAuthorities Having Jurisdiction to verity integrity of the water supply. 1 Notify the Authority Having Jurisdiction and those in the area affected by the test 2 Record pressure reading from the water supply pressure gauge. 3 Verity that the intermediate chamber of the dry valve is free of water. No water should flow from the drip check when the plunger is pushed. 4 Verity that the dry pipe system is pressurized at or above the minimum pressure recommended in Table 3 for the water supply pressure available 5. Fully OPEN the main drain located on the base of the dry valve. 6. When a full flow is developed from the main drain, record the residual pressure from the water supply pressure gauge.