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

Water Supply
Main Drain Valve
3. Open the water supply main drain valve fully to flush the water
supply of any contaminants.
Water Supply
Main Drain Valve
4. Close the water supply main drain valve.
5. ACTIVATETHEELECTRICALPORTIONOFTHESYSTEMTO
ENERGIZETHESOLENOID.
6. Open the remote system test valve (inspector’s test connection) to
simulate the operation of a sprinkler.
7. Record the following:
7a. Time between opening the remote system test valve
(inspector’s test connection) to the operation of the preaction
valve
7b. System air pressure when the valve operated
7c. Time from opening the remote system test valve (inspector’s
test connection) to when water flows from the test
connection’s outlet
7d. All information required by the authority having jurisdiction
8. Confirm that all alarms operate properly.
9. Continue to run water until it is clear.
Water Supply Main
Control Valve
10. Close the water supply main control valve.
Diaphragm-Charge-
Line Ball Valve
11. Close the diaphragm-charge-line ball valve.
12. SHUTOFFTHEAIRSUPPLY.
System Main
Drain Valve
13. Open the system main drain valve to drain the system.
14. After the system is properly drained, close the remote system test
valve (inspector’s test connection).
REV_B
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.
I-769P.AC/ELEC_37

Victaulic FireLock NXT 769 Series Specifications

General

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