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

System Main
Drain Valve
8. Open the remote system test valve (inspector’s test connection) or
the system main drain valve to simulate an open sprinkler. NOTE:
The system main drain valve is shown above.
9. Record the system air pressure when the valve operates, along
with any other information required by the authority having juris-
diction.
10. Confirm that the diaphragm charge line’s pressure drops to zero
and that water is flowing through the auto drain and actuators to
the drip cup.
Water Supply Main
Control Valve
11. Close the water supply main control valve fully.
System Main
Drain Valve
12. Close the remote system test valve (inspector’s test connection) or
the system main drain valve. NOTE: The system main drain valve
is shown above.
13. SHUTOFFTHEAIRSUPPLY.
Diaphragm-Charge-
Line Ball Valve
14. Close the diaphragm-charge-line ball valve.
15. Perform all steps in the “Placing the System in Service” section.
FULLOPERATIONAL(TRIP)TEST
WARNING
• Thebuildingownerortheirrepresentativeisresponsiblefor
maintainingthefireprotectionsysteminproperoperating
condition.
• Toensurepropersystemoperation,valvesmustbeinspected
inaccordancewithcurrentNFPA-25requirementsorinaccor-
dancewiththerequirementsofthelocalauthorityhaving
jurisdiction(whicheverismorestringent).Alwaysrefertothe
instructionsinthismanualforadditionalinspectionandtesting
requirements.
• Thefrequencyofinspectionsmustbeincreasedinthepres-
enceofcontaminatedwatersupplies,corrosive/scalingwater
supplies,andcorrosiveatmospheres.
• Depressurizeanddrainthepipingsystembeforeattemptingto
install,remove,adjust,ormaintainanyVictaulicproducts.
Failuretofollowtheseinstructionscouldcausesystemfailure,
resultingindeath,seriouspersonalinjury,andpropertydamage.
Victaulic recommends the full operational (trip) test every 3 years (at
minimum). NOTE: The frequency of the full operational (trip) test must
be increased in the presence of contaminated water supplies, corrosive/
scaling water supplies, and corrosive atmospheres. This test allows a full
flow of water into the sprinkler system; therefore, this test must be per-
formed when there is no chance for freezing conditions. In addition, the
authority having jurisdiction in the area may require full operational (trip)
tests on a more frequent basis. Verify these requirements by contacting
the authority having jurisdiction in the affected area.
1. Notify the authority having jurisdiction, remote station alarm
monitors, and those in the affected area that the full operational
(trip) test will be performed.
2. Record the water supply pressure and system air pressure.
I-769P.AC/ELEC_36
FireLockNXT™AutoConvertPreactionValve
SERIES 769
PreactionElectricAutoConvertDryTrim
I-769P.AC/ELECINSTALLATION,MAINTENANCE,ANDTESTINGMANUAL
www.victaulic.com
VICTAULIC IS A REGISTERED TRADEMARK OF VICTAULIC COMPANY. © 2009 VICTAULIC COMPANY. ALL RIGHTS RESERVED. PRINTED IN THE USA.
REV_B

Victaulic FireLock NXT 769 Series Specifications

General

Brand	Victaulic
Model	FireLock NXT 769 Series
Category	Control Unit
Language	English