I-768N
/ Series 768N FireLock NXT
™
Dry Valve
/ 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.
Open the remote system test valve (inspector’s test connection) or
the system main drain valve to simulate an open sprinkler.
8.
Record the system air pressure when the valve operates, along with
any other information required by the authority having jurisdiction.
9.
Confirm that the charge line’s pressure drops to zero and that water
is flowing through the auto drain to the drip cup.
10.
Close the water supply main control valve fully.
11.
Close the remote system test valve (inspector’s test connection) or
the system main drain valve.
12. SHUT OFF THE AIR SUPPLY.
13.
Close the charge line ball valve.
14.
Perform all steps in the “Resetting the System” section.
Water Supply
Main Drain
Valve
(Steps 3 & 6)
System Main
Drain Valve
(Steps 7 & 11)
Water
Supply
Main
Control
Valve
(Steps 4,
5, & 10)
Charge Line
Ball Valve
(Step 13)
I-768N_22
REV_C
