3322 BROADWAY COMPASS HEALTH 2025-10-03

Valve Reset Procedure 1. Close the main water supply control valve to the DDX-LP valve. 2. Close the Pushrod Chamber Supply valve. 3. Close the valve(s) controlling air or nitrogen supply to the sprinkler system. 4. Open the Main Drain valve and allow system to fully drain. Leave Main Drain valve open. 5. Open all drain valves and vents at low points through -out the system, closing them when flow of water has stopped. 6. Inspect and replace any portion of the detection system and/or sprinkler system subjected to fire conditions. 7. Open the Model B Manual Emergency Station to relieve pressure in the pushrod chamber of the DDX-LP valve and leave open. 8. With the Alarm Line valve open, push in the plunger of Ball Drip valve, forcing the ball from its seat, and drain the alarm line. Close the Alarm Line valve. 9. Push in and rotate the external reset knob counterclockwise (when facing the valve) until you hear a distinct noise indicating that the clapper has reset. Note: The reset knob can be rotated only when pressure in the pushrod chamber is vented to atmospheric conditions (see step 7). 10. Open the Pushrod Chamber Supply valve and allow water to fill the pushrod chamber. Leave Pushrod Chamber Supply valve in the open position. 11. Close the Model B Manual Emergency Station valve when a steady stream of water is passing through the valve. 12. Allow water to flow through the Model LP Dry Pilot Actuator until all air is purged from the actuation piping. 13. Close the dry pilot actuator by opening the air or nitrogen supply quick fill valve. Allow the pressure to build to the level specified in Table A then set the pneumatic supply to automatic operation. Note: It may be necessary to temporarily close the main drain valve in order to build supervisory pressure to the recommended level.) 14. Open the Alarm Line valve and verify that the Main Drain valve is open. Slightly open the main valve controlling water supply to the Model DDX-LP Valve, closing the Main Drain valve fully when water flow is heard. Observe if air or water leaks through the Ball Drip valve. If no leak occurs, the DDX-LP clapper is sealed. 15. If there is an accelerator installed on the system, reset it now following the manufacturer's instructions. For the Reliable Model 131 Accelerator, please refer to Technical Bulletin 323. Note: The air or nitrogen system must be in automatic operation in order for the accelerator to set up properly. 16. Slowly open the main valve controlling water supply until fully opened, and verify that it is properly monitored. 17. Verify that the Pushrod Chamber Supply valve and Alarm Line valve are open. Note: The Pushrod Chamber supply valve must remain open to maintain hydraulic pressure in the pushrod chamber after the DDX-LP valve has been reset. 18. Verify that the Model B Manual Emergency Station is secured in the OFF position with the appropriate nylon tie. 19. Notify all concerned parties that the system has been placed into service. Inspection, Testing, and Maintenance 1. Notify all concerned parties that testing will be performed on system. 2. Water supply - Confirm that valves controlling water supply to the Deluge Valve are opened fully and properly monitored. 3. Alarm line - Confirm that the alarm line valve is open and remains in this position. 4. Other trim valves - Confirm that the pushrod chamber supply valve is open, as well as all pressure gauge valves. The main drain valve, condensate drain valve, and alarm test valve should be closed. 5. Ball drip valve - Push in on the plunger to be sure ball check is off its seat. If no water appears, the Deluge Valve water seat is tight. Inspect the bleed hole on the underside of the pushrod chamber for leakage. 6. Inspect air pressure for conformance to Table A. 7. Releasing device - Check outlet of the releasing device (i.e., hydraulic manual emergency station) for leakage. Also verify that tubing drain lines from releasing devices are not pinched or crushed which could prevent proper releasing of the DDX-LP valve. 8. Testing water flow alarm - Open the alarm test valve permitting water from the supply to flow to the electric sprinkler alarm switch and to the mechanical sprinkler alarm (water motor) if installed. After testing, close this valve securely. Push in on the plunger of ball drip valve until all water has drained from the alarm line. 9. Testing of supervisory pressure switch - Close the main water supply control valve. Decrease pneumatic pressure from normal and verify operation of low pressure alarm. Increase pressure form normal and verify operation of high pressure alarm. Reset pneumatic pressure to normal. 10. Operational test - Open the Model B Manual Emergency Station. Alternatively, deplete pneumatic pressure from the sprinkler system. Note: AN OPERATIONAL TEST WILL CAUSE THE DELUGE VALVE TO OPEN AND FLOW WATER INTO THE SPRINKLER SYSTEM. 11. Secure the Model B Manual Emergency Station in the OFF position with nylon tie after Deluge Valve is reset. 12. Notify all concerned parties that testing is complete and system has been returned to service. Testing System Without Operating Deluge Valve 1. Close the valve controlling water supply to the deluge valve and open the main drain valve. 2. Verify that valve supplying hydraulic pressure to the piston/pushrod chamber is open, allowing water to enter the pushrod chamber. 3. Deplete pneumatic pressure from the sprinkler system. 4. Loss of pneumatic pressure must result in a sudden drop of water pressure in the pushrod chamber, as indicated by the pressure gauge on the hydraulic release trim. 5. Reset the valve per the reset instructions. Bulletin 338 June 2021 Page 6 of 7 www.reliablesprinkler.com