Victaulic FireLock NXT 768 Series User Manual

14. Open the water supply main drain valve.
CAUTION
Takeprecautionswhenopeningthewatersupplymaincontrol•
valve,sincewaterwillflowfromallopensystemvalves.
Failuretofollowthisinstructioncouldresultinpropertydamage.
Water Supply Main
Control Valve
15. Open the water supply main control valve slowly until water flows
steadily from the open water supply main drain valve.
16. Close the water supply main drain valve when a steady flow of
water occurs.
Water Supply
Main Control
Valve
17. Open the water supply main control valve fully.
18. Confirm that all valves are in their normal operating positions (refer
to the table below).
Valve
NormalOperating
Position
Diaphragm-Charge-Line Ball Valve Open
Alarm Test Ball Valve Closed
Water Supply Main Control Valve Open
Water Supply Main Drain Valve Closed
System Main Drain Valve Closed
Isolation Ball Valve for Series 746-LPA Dry Accelerator
(if applicable)
Open
¼-Turn Vent Ball Valve for Series 746-LPA Dry Accelerator
(if applicable)
Closed
Slow-Fill Ball Valve of the Victaulic AMTA (if applicable) Open
Fast-Fill Ball Valve of the Victaulic AMTA (if applicable) Closed
Water Motor Alarm Shutoff Valve (European trim only) Open
19. Notify the authority having jurisdiction, remote station alarm
monitors, and those in the affected area that the valve is back in
service.
20. Provide test results to the authority having jurisdiction, if required.
I-768_24
FireLockNXT™DryValve
SERIES768
I-768INSTALLATION,MAINTENANCE,ANDTESTINGMANUAL
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VICTAULIC IS A REGISTERED TRADEMARK OF VICTAULIC COMPANY. © 2007 VICTAULIC COMPANY. ALL RIGHTS RESERVED. PRINTED IN THE USA.
REV_D

Victaulic FireLock NXT 768 Series Specifications

General

Brand	Victaulic
Model	FireLock NXT 768 Series
Category	Control Unit
Language	English