Victaulic FireLock NXT 776 Series User Manual

REQUIREDOPERATIONAL(TRIP)TESTS
PARTIAL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.
Partial operational (trip) tests are required to confirm proper valve
operation; however, this test does not confirm full system operation.
Victaulic recommends performing the partial operational (trip) test
annually (at minimum). NOTE: The frequency of the partial operational
(trip) test must be increased in the presence of contaminated water
supplies, corrosive/scaling water supplies, and corrosive atmospheres.
In addition, the authority having jurisdiction in the area may require
partial 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 partial operational
(trip) test will be performed.
2. Record the water supply pressure and system air pressure.
3. Open the water supply main drain valve fully to flush the water
supply of any contaminants.
Water Supply Main
Control Valve
4. Close the water supply main control valve to the point where
additional closure will not provide flow through the water supply
main drain valve.
Water Supply Main
Control Valve
5. Open the water supply main control valve slowly until a small
amount of water flows through the water supply main drain valve.
6. Close the water supply main drain valve.
I-769D_30
FireLockNXT™DelugeValve
SERIES 769
I-769DINSTALLATION,MAINTENANCE,ANDTESTINGMANUAL
www.victaulic.com
VICTAULIC IS A REGISTERED TRADEMARK OF VICTAULIC COMPANY. © 2007 VICTAULIC COMPANY. ALL RIGHTS RESERVED. PRINTED IN THE USA.
REV_D

Victaulic FireLock NXT 776 Series Specifications

General

Brand	Victaulic
Model	FireLock NXT 776 Series
Category	Control Unit
Language	English