3003 W CASINO RD BLDG 40-87 2025-08-21

TFP1O2O Page 7 of 20 Valve Setting Step 5.As necessary,replace all sprin- to the Care and Maintenance section klers that have operated. Replacement under Automatic Drain Valve Inspection Procedure sprinklers must be of the same type to determine/correct the cause of the and temperature rating as those which leakage problem. Steps 1 through 11 are to be performed have operated. Step 10. Partially open the Main when initially setting the Model DPV-1 Control Valve. Slowly close the Main Dry Pipe Valve;after an operational test MUM Drain Valve as soon as water dis- of the fire protection system; or, after In order to prevent the possibility of charges from the drain connection. system operation due to a fire. a subsequent operation of an over- Depress the plunger on the Automatic NOTES:If the DPV-1 is equipped with heated solder type sprinkler,any solder Drain Valve to make sure that it is open a Dry Pipe Valve Accelerator, refer to type sprinklers which were possibly and that there is no water discharging. its resetting instructions before reset- exposed to a temperature greater than The absence of water discharging from ting the DPV-1.Refer to TFP1105 for the their maximum rated ambient must be the Automatic Drain Valve is an indica- VIZOR or TFP1112 for the ACC-1. replaced. tion of a properly set water seat within Based on the instructions provided, Step 6. Push down on the Reset Knob the DPV-1 Valve. If water is discharg- reset the Accelerator at the appropriate (Figure 2E)to allow the Clapper Assem- ing, refer to the Care and Maintenance time during the resetting of the DPV-1. bly to re-seat. section under the Automatic Drain Step 7. Pressurize the system with air Valve Inspection to determine/correct Unless otherwise noted,refer to Figure 3, 4, or 5 to identify functional trim (or nitrogen) to 10 psi (0,7 bar), and the cause of the leakage problem. components. then individually open all auxiliary drain If there are no leaks,the DPV-1 Valve is valves in the system piping to drain ready to be placed in service and the Step 1. Close the Main Control Valve, any remaining water in trapped sec- Main Control Valve must then be fully and close the Air Supply Control Valve. tions. Close each drain valve as soon opened. If the DPV-1 is equipped with a Dry as water ceases to discharge. Note: After setting a fire protection Pipe Valve Accelerator, remove the Dry Pipe Valve Accelerator from service in Also partially open the Low Body Drain system, notify the proper authorities accordance with its Technical Data Valve to assure that the riser is com- and advise those responsible for moni- S heet(Refer to TFP1105 for the VIZOR pletely drained. Close the Low Body toring proprietary and/or central station or TFP1112 for the ACC-1). Drain Valve as soon as water ceases alarms. Step 2.Open the Main Drain Valve and to discharge. Step 11. Once a week after a valve is all auxiliary drains in the system.Close Step 8. Refer to Table B and then reset following an operational test or the auxiliary drain valves after water restore the system to the normal system operation,the Low Body Drain ceases to discharge. Leave the Main system air pressure as necessary to Valve (and any low point drain valves) Drain Valve open. hold the DPV-1 Valve closed. should be partially opened (and then Step 9. Depress the plunger on the subsequently closed) to relieve drain- Step Depress the plunger the Automatic Drain Valve to make sure back water. Continue this procedure drain- Automatic tic Drain Valve to verify that it is until drain-back water is no longer it is open and that there is no air open and that the DPV-1 Valve is com-pletely drained. discharging. present. Step 4. Open the Optional Alarm The absence of air discharging from Control Valve, as applicable, if it was the Automatic Drain Valve is an indica- closed to silence local alarms. tion of a properly set air seat within the DPV-1 Valve. If air is discharging, refer