Victaulic 769N FireLock NXT Series User Manual

I-769N.Preaction/AC-ELEC / Victaulic
®
Series 769N FireLock NXT
™
/ Installation, Maintenance, and Testing Manual
REQUIRED PARTIAL OPERATIONAL TRIP TEST
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.
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.
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.
7. Trip the valve by doing one of the following:
a. Open (energize) the solenoid valves
b. Open the manual pull station valve
8. Confirm that the charge line’s pressure drops to zero and that
water is flowing through the auto drain to the drip cup.
9. Close the water supply main control valve fully.
10. Close the remote system test valve (inspector’s test connection) or
the system main drain valve.
11. Shut off the air supply.
12. Close the charge line ball valve.
13. Perform all steps in the “Resetting the System” section.
Water
Supply Main
Control
Valve
(Steps 4,
5, & 9)
Water Supply
Main Drain
Valve
(Steps 3 & 6)
System Main
Drain Valve
(Step 10)
Charge Line
Ball Valve
(Step 11)
I-769N.Preaction/AC-ELEC_26 REV_A

Victaulic 769N FireLock NXT Series Specifications

General

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