Victaulic 769N FireLock NXT Series Installation, Maintenance, And Testing Manual
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Victaulic 769N FireLock NXT Series Installation, Maintenance, And Testing Manual

Actuated valve with preaction trim, electric autoconvert dry release/with redundant solenoid valve
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INSTALLATION, MAINTENANCE, AND TESTING MANUAL
Victaulic
Series 769N FireLock NXT
®
Electric AutoConvert Dry Release
Electric AutoConvert Dry Release with Redundant Solenoid Valve
• Read and understand all instructions before attempting to install, remove, adjust, or perform maintenance on any Victaulic piping products.
• Depressurize and drain piping systems before attempting to install, remove, adjust, or perform maintenance on any Victaulic piping
products.
• Wear safety glasses, hardhat, and foot protection.
• Save this installation, maintenance, and testing manual for future reference.
Failure to follow instructions and warnings could cause system failure, resulting in death or serious personal injury and property damage.
REV_A
I-769N.Preaction/AC-ELEC
™
Actuated Valve with Preaction Trim
WARNING
KEEP THESE INSTRUCTIONS WITH THE
INSTALLED VALVE FOR FUTURE REFERENCE
Electric AutoConvert
Dry Release Shown
I-769N.Preaction/AC-ELEC

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Summary of Contents for Victaulic 769N FireLock NXT Series

  • Page 1 WARNING • Read and understand all instructions before attempting to install, remove, adjust, or perform maintenance on any Victaulic piping products. • Depressurize and drain piping systems before attempting to install, remove, adjust, or perform maintenance on any Victaulic piping products.
  • Page 2 Valve Normal Operating Position Valve Normal Operating Position Water Supply Main Control Valve Open Slow-Fill Ball Valve of the Victaulic AMTA (if applicable) Open Water Supply Main Drain Valve Closed Fast-Fill Ball Valve of the Victaulic AMTA (if applicable) Closed...
  • Page 3 Auto Vent Sleeve of Series 776 Low-Pressure Actuator Ball Drip Plunger System Main Drain Valve Water Supply Main Control Valve Auto Drain Sleeve Water Supply Main Drain Charge Valve Line Ball Alarm Valve Test Ball Valve WATER FLOW ALARM TEST Perform the water flow alarm test on a frequency required by the current NFPA-25 code or LPCB/EN guidelines.

  • Page 4: Table Of Contents

    • Depressurize and drain the piping system before attempting to install, remove, adjust, or maintain any Victaulic piping products. Required Partial Operational Trip Test ..... . 26 Failure to follow these instructions can cause product failure, Required Full Operational Trip Test .

  • Page 5: Important Installation Information

    Series 75D Water Column Device kit Install the valve assembly into the riser with two Victaulic rigid is available to assist in a utomatically draining water out of the riser.

  • Page 6: Electric Autoconvert Dry Release Preaction Trim

    I-769N.Preaction/AC-ELEC / Victaulic Series 769N FireLock NXT ™ / Installation, Maintenance, and Testing Manual ® The components shaded in orange below are shipped separate from the valve and must be installed in accordance with the trim drawing provided. NOTE: The Vic-Quick Riser (VQR) assembly is shown.
  • Page 7 I-769N.Preaction/AC-ELEC / Victaulic Series 769N FireLock NXT ™ / Installation, Maintenance, and Testing Manual ® TRIM DIMENSIONS A 4-INCH/114.3-MM VALVE WITH ELECTRIC AUTOCONVERT DRY RELEASE PREACTION TRIM IS SHOWN BELOW 1 1/2 – 2-INCH/48.3 – 60.3-MM CONFIGURATIONS CONTAIN 3/4-INCH/19-MM DRAIN VALVES 2 1/2 –...
  • Page 8 I-769N.Preaction/AC-ELEC / Victaulic Series 769N FireLock NXT ™ / Installation, Maintenance, and Testing Manual ® TRIM COMPONENTS – EXPLODED VIEW DRAWING Series 769N FireLock NXT Actuated Valve - Electric AutoConvert Dry Release Preaction Trim Orange shaded areas identify components that are optional equipment.

  • Page 9: Trim Components - Exploded View Drawing

    I-769N.Preaction/AC-ELEC / Victaulic Series 769N FireLock NXT ™ / Installation, Maintenance, and Testing Manual ® TRIM COMPONENTS – EXPLODED VIEW DRAWING Series 769N FireLock NXT Actuated Valve - Electric AutoConvert Dry Release Preaction Trim with Redundant Solenoid Valve Orange shaded areas identify components that are optional equipment.

  • Page 10: Internal Valve Components - Section View And Exploded View Drawings

    I-769N.Preaction/AC-ELEC / Victaulic Series 769N FireLock NXT ™ / Installation, Maintenance, and Testing Manual ® INTERNAL VALVE COMPONENTS – SECTION VIEW AND EXPLODED VIEW DRAWINGS Clapper Latch Diaphragm Assembly Clapper Seal Seat Exaggerated for Clarity Valve is shown in the “set” position The 1½-inch/48.3-mm and 2-inch/60.3-mm valve sizes contain washers under the heads of the cover plate bolts.

  • Page 11: Air Supply Requirements

    The “off” or “high” pressure setting should be 18 psi/124 kPa/1.2 Bar. When a base- or riser-mounted air compressor supplies air to a Series 769N FireLock NXT Actuated Valve, it is not necessary to install the Victaulic Series 757 Regulated Air Maintenance Trim Assembly (AMTA). In this case, the air line of the compressor connects to the trim at the fitting where the Series 757 Regulated AMTA is installed normally (refer to the applicable trim drawing).

  • Page 12: Initial System Setup

    I-769N.Preaction/AC-ELEC / Victaulic Series 769N FireLock NXT ™ / Installation, Maintenance, and Testing Manual ® SECTION I • Initial System Setup I-769N.Preaction/AC-ELEC_12 REV_A...
  • Page 13 I-769N.Preaction/AC-ELEC / Victaulic Series 769N FireLock NXT ™ / Installation, Maintenance, and Testing Manual ® INITIAL SYSTEM SETUP Step 5: NOTICE When the system reaches approximately 10 psi/69 kPa/0.7 Bar, and no Before proceeding with initial system setup, verify that the additional moisture is being released from the Auto Vent, pull up on the Auto Vent Sleeve of the Series 776 Low-Pressure Actuator.
  • Page 14 Step 13: Alarm Test Ball Valve of the Priming Manifold Assembly Closed Open the water supply main control valve fully. Slow-Fill Ball Valve of the Victaulic AMTA (if applicable) Open Step 14: Fast-Fill Ball Valve of the Victaulic AMTA (if applicable)
  • Page 15 I-769N.Preaction/AC-ELEC / Victaulic Series 769N FireLock NXT ™ / Installation, Maintenance, and Testing Manual ® This page intentionally left blank REV_A I-769N.Preaction/AC-ELEC_15...

  • Page 16: Resetting The System

    I-769N.Preaction/AC-ELEC / Victaulic Series 769N FireLock NXT ™ / Installation, Maintenance, and Testing Manual ® SECTION II • Resetting the System I-769N.Preaction/AC-ELEC_16 REV_A...
  • Page 17 I-769N.Preaction/AC-ELEC / Victaulic Series 769N FireLock NXT ™ / Installation, Maintenance, and Testing Manual ® RESETTING THE SYSTEM Step 1: Step 5: Isolate the charge line ball valve by placing it in the closed position. Confirm that all system drains are shut and that the system is free from leaks.

  • Page 18: Weekly External Inspection

    I-769N.Preaction/AC-ELEC / Victaulic Series 769N FireLock NXT ™ / Installation, Maintenance, and Testing Manual ® SECTION III • Weekly External Inspection • Monthly External Inspection WARNING • The building owner or their representative is responsible for maintaining the fire protection system in proper operating condition.
  • Page 19 Charge Line Ball Valve of the Priming Manifold Assembly Open Alarm Test Ball Valve of the Priming Manifold Assembly Closed Slow-Fill Ball Valve of the Victaulic AMTA (if applicable) Open Fast-Fill Ball Valve of the Victaulic AMTA (if applicable) Closed...

  • Page 20: Required Main Drain Test

    I-769N.Preaction/AC-ELEC / Victaulic Series 769N FireLock NXT ™ / Installation, Maintenance, and Testing Manual ® SECTION IV • Required Main Drain Test • Required Water Flow Alarm Test • Required Water Level and Low- Air Alarm Tests • Required Partial Operational Trip Test •...
  • Page 21 Open CAUTION Alarm Test Ball Valve of the Priming Manifold Assembly Closed Slow-Fill Ball Valve of the Victaulic AMTA (if applicable) Open • Use caution to prevent opening the system main drain valve accidentally. Fast-Fill Ball Valve of the Victaulic AMTA (if applicable)
  • Page 22 I-769N.Preaction/AC-ELEC / Victaulic Series 769N FireLock NXT ™ / Installation, Maintenance, and Testing Manual ® REQUIRED WATER FLOW ALARM TEST Perform the water flow alarm test on a frequency required by the Open the water supply main drain valve fully to flush the water current NFPA-25 code or LPCB/EN guidelines.

  • Page 23: Required Autoconvert System Test

    ™ / Installation, Maintenance, and Testing Manual ® REQUIRED AUTOCONVERT SYSTEM TEST Victaulic recommends the AutoConvert system test every year (at 12. If a Series 746-LPA Dry Accelerator is installed, open the isolation minimum). ball valve. Notify the authority having jurisdiction, remote station alarm 13.

  • Page 24: Required Water Level And Low-Air Alarm Tests

    Alarm Test Ball Valve of the Priming Manifold Assembly Closed follow all steps in the “Resetting the System” section. Slow-Fill Ball Valve of the Victaulic AMTA (if applicable) Open Record the system air pressure at which the low air alarm...

  • Page 25: Low Water Alarm Test

    Alarm Test Ball Valve of the Priming Manifold Assembly Closed Partially open the water supply main drain valve slowly. Record Slow-Fill Ball Valve of the Victaulic AMTA (if applicable) Open the pressure at which the low water alarm activates. NOTE: The...

  • Page 26: Required Partial Operational Trip Test

    Open (energize) the solenoid valves b. Open the manual pull station valve Victaulic recommends performing the partial operational (trip) test annually (at minimum). NOTE: The frequency of the partial operational Confirm that the charge line’s pressure drops to zero and that (trip) test must be increased in the presence of contaminated water water is flowing through the auto drain to the drip cup.

  • Page 27: Required Full Operational Trip Test

    / Installation, Maintenance, and Testing Manual ® REQUIRED FULL OPERATIONAL TRIP TEST Victaulic recommends the full operational (trip) test every 3 years (at Record the following: minimum). NOTE: The frequency of the full operational (trip) test must 6a. The time between opening the remote system test valve be increased in the presence of contaminated water supplies, corrosive/ (inspector’s test connection) and operation of the actuated...

  • Page 28: Required Internal Inspection

    I-769N.Preaction/AC-ELEC / Victaulic Series 769N FireLock NXT ™ / Installation, Maintenance, and Testing Manual ® SECTION V • Required Internal Inspection WARNING • Depressurize and drain the piping system before attempting to remove the cover plate from the valve. • The building owner or their representative is responsible for maintaining the fire protection system in proper operating condition.
  • Page 29 15. While the clapper is rotated out of the valve body, pull the latch forward to inspect the diaphragm. If the diaphragm shows any signs of wear or damage, replace it with a new, Victaulic-supplied diaphragm. Refer to the “Removing and Replacing the Diaphragm”...
  • Page 30 I-769N.Preaction/AC-ELEC / Victaulic Series 769N FireLock NXT ™ / Installation, Maintenance, and Testing Manual ® SECTION VI • Removing and Replacing the Clapper Seal • Removing and Replacing the Clapper Assembly • Installing the Cover Plate Gasket and Cover Plate •...

  • Page 31: Removing And Replacing The Clapper Seal

    Pry the clapper seal, along with the seal ring, out of the clapper. Inspect the clapper seal. If the clapper seal is torn or worn, replace it with a new, Victaulic-supplied clapper seal. If replacing the clapper seal assembly with a new assembly, skip to step 7.

  • Page 32: Removing And Replacing The Clapper Assembly

    I-769N.Preaction/AC-ELEC / Victaulic Series 769N FireLock NXT ™ / Installation, Maintenance, and Testing Manual ® REQUIRED SEAL ASSEMBLY BOLT/BOLT SEAL TORQUES Nominal Size Required Torque inches or mm inch-lbs/N•m 1 ½ 2 ½ 76.1 mm 165.1 mm Install the clapper seal into the clapper carefully. Ensure that the seal ring snaps into the clapper completely.

  • Page 33: Installing The Cover Plate Gasket And Cover Plate

    Verify that the cover plate gasket is in good condition. If the gasket is torn or worn, replace it with a new, Victaulic-supplied gasket. Align the holes of the cover plate gasket with the holes in the cover plate.

  • Page 34: Removing And Replacing The Diaphragm

    I-769N.Preaction/AC-ELEC / Victaulic Series 769N FireLock NXT ™ / Installation, Maintenance, and Testing Manual ® REMOVING AND REPLACING THE DIAPHRAGM CAUTION Remove the system from service by following steps 1 – 10 of the • DO NOT over-tighten the cover plate bolts.

  • Page 35: Cleaning The Cartridge In The Priming Manifold Assembly

    Failure to follow this instruction could cause improper valve operation, resulting in property damage. Use only a new, Victaulic-supplied filter. Install the new filter onto the filter adapter, as shown above. Make sure the o-ring is positioned on the filter adapter, as shown above.

  • Page 36: Troubleshooting

    I-769N.Preaction/AC-ELEC / Victaulic Series 769N FireLock NXT ™ / Installation, Maintenance, and Testing Manual ® SECTION VII • Troubleshooting • System Sensor* PDRP-2001 or NOTIFIER* RP-2001 Field Wiring Diagrams • Sample Program for System Sensor* PDRP-2001 or NOTIFIER* RP-2001 Panel •...
  • Page 37 Actuator is pulled up, the screw does not stay set in the “UP” The Series 776 Low-Pressure Actuator has a broken seal. If the above procedure does not work, contact Victaulic. position. Water is leaking through the Series 776 Low-Pressure Actuator.
  • Page 38 Make sure there are no restrictions in the remote system test valve (inspector’s test connection). If the above procedures do not work, contact Victaulic. The Series 746-LPA Dry Accelerator does not set up properly The Series 746-LPA Dry Accelerator is installed upside-down.
  • Page 39 I-769N.Preaction/AC-ELEC / Victaulic Series 769N FireLock NXT ™ / Installation, Maintenance, and Testing Manual ® This page intentionally left blank REV_A I-769N.Preaction/AC-ELEC_39...
  • Page 40 I-769N.Preaction/AC-ELEC / Victaulic Series 769N FireLock NXT ™ / Installation, Maintenance, and Testing Manual ® System Sensor* PDRP-2001 or NOTIFIER* RP-2001 Field Wiring Diagram (Standard) AUTO CONVERT PRESSURE PS2 SW1 45-2V SYSTEM PRESSURE ZONE 1 10-2V (–) (–) (–) S1 753E...
  • Page 41 I-769N.Preaction/AC-ELEC / Victaulic Series 769N FireLock NXT ™ / Installation, Maintenance, and Testing Manual ® System Sensor* PDRP-2001 or NOTIFIER* RP-2001 Field Wiring Diagram (Standard, Low-Pressure Switch - Double-Interlocked, Electric-Pneumatic/Electric) AUTO CONVERT PRESSURE PS2 SW1 45-2V HIGH SYSTEM PRESSURE ZONE 1...
  • Page 42 I-769N.Preaction/AC-ELEC / Victaulic Series 769N FireLock NXT ™ / Installation, Maintenance, and Testing Manual ® Potter* PFC-4410RC Field Wiring Diagram (Standard) SYSTEM PRESSURE (–) PS2 SW1 10-2V (–) (–) LATCHING SOLENOID DRIVER FIELD WIRING AUTO CONVERT PRESSURE 45-2V HIGH AC IN CONNECTOR...
  • Page 43 I-769N.Preaction/AC-ELEC / Victaulic Series 769N FireLock NXT ™ / Installation, Maintenance, and Testing Manual ® Potter* PFC-4410RC Field Wiring Diagram (Standard, Low-Pressure Switch - Double-Interlocked, Electric-Pneumatic/Electric) SYSTEM PRESSURE PS2 SW1 (–) 10-2V (–) (–) LATCHING SOLENOID DRIVER AUTO CONVERT PRESSURE...
  • Page 44 I-769N.Preaction/AC-ELEC / Victaulic Series 769N FireLock NXT ™ / Installation, Maintenance, and Testing Manual ® SAMPLE PROGRAM FOR SYSTEM SENSOR* PDRP-2001 OR NOTIFIER* RP-2001 PANEL INPUT ZONES SYSTEM SETUP Select 2= INPUT ZONES Enter programming mode Select 1=ZONE 1 Down arrow to 3= SYSTEM SETUP...
  • Page 45 I-769N.Preaction/AC-ELEC / Victaulic Series 769N FireLock NXT ™ / Installation, Maintenance, and Testing Manual ® SAMPLE PROGRAM FOR POTTER* PFC-4410RC PANEL Push Run/Program switch down to PROGRAM Press Function key until “Password=000” is displayed Press Set key three times “Init Zone #1 Enabled” is then displayed Press Function key until “Unit Program #”...
  • Page 46 I-769N.Preaction/AC-ELEC / Victaulic Series 769N FireLock NXT ™ / Installation, Maintenance, and Testing Manual ® System Sensor* PDRP-2001 or NOTIFIER* RP-2001 Field Wiring Diagram (Standard for LPCB) SUPPLY SYSTEM 4.7K EOLR 4.7K EOLR WATER FLOW EPS 10-2V HIGH HIGH AIR PRESSURE...
  • Page 47 I-769N.Preaction/AC-ELEC / Victaulic Series 769N FireLock NXT ™ / Installation, Maintenance, and Testing Manual ® System Sensor* PDRP-2001 or NOTIFIER* RP-2001 Field Wiring Diagram (Double-Interlocked, Electric-Pneumatic/Electric - LPCB) SUPPLY SYSTEM 4.7K EOLR 4.7K EOLR 1.2K WATER FLOW EPS10-2V HIGH HIGH...
  • Page 48 I-769N.Preaction/AC-ELEC / Victaulic Series 769N FireLock NXT ™ / Installation, Maintenance, and Testing Manual ® SAMPLE PROGRAM FOR SYSTEM SENSOR* PDRP-2001 OR NOTIFIER* RP-2001 PANEL (DUAL OR SINGLE HAZARD, AUTOCONVERT – LPCB) Edit Zone 5 SYSTEM SETUP Press 2=INPUT ZONES...
  • Page 49 I-769N.Preaction/AC-ELEC / Victaulic Series 769N FireLock NXT ™ / Installation, Maintenance, and Testing Manual ® DOUBLE KNOCK/CROSS ZONE DETECTION AND LOW AIR PRESSURE Press “MODE” 2=PROGRAMMING MODE Enter Password “00000” Press Press 1=CROSS INPUT ZONES Press 1=RELEASE 1 GROUPS Press 1=NONE...
  • Page 50 For complete contact information, visit victaulic.com I-769N.Preaction/AC-ELEC 9454 REV A UPDATED 05/2016 ZAEL769NP0 VICTAULIC AND FIRELOCK NXT ARE REGISTERED TRADEMARKS OR TRADEMARKS OF VICTAULIC COMPANY AND/OR ITS AFFILIATED ENTITIES IN THE UNITED STATES AND/OR OTHER COUNTRIES. © 2016 VICTAULIC COMPANY. ALL RIGHTS RESERVED.

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