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

System Main
Drain Valve
6. Partially open the system main drain valve slowly. Confirm that
water is not flowing from the drain. NOTE: If water is flowing from
the drain, the system may not have drained properly. In this case,
follow all steps under the “Placing the System in Service” section.
7. Record the system air pressure at which the low air alarm
activates.
System Main
Drain Valve
8. Close the system main drain valve.
Slow-Fill
Ball Valve
9. Close the slow-fill ball valve on the AMTA.
Fast-Fill
Ball Valve
10. Open the fast-fill ball valve on the AMTA. Bring the pressure back
up to the normal system pressure.
Fast-Fill
Ball Valve
11. When the normal system air pressure is reached, close the fast-fill
ball valve on the AMTA.
Slow-Fill
Ball Valve
12. Open the slow-fill ball valve on the AMTA.
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_33

Victaulic FireLock NXT 769 Series Specifications

General

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