11. If a Series 746-LPA Dry Accelerator (28) is installed, open the
¼-turn vent ball valve.
Manufacturer’s Recommended Pressures – Series 746-LPA Dry
Accelerator:
Minimum Water Supply Pressure = 2.0 Bar
Mi
nimum Air Supply Pressure = 1.4 Bar
Minimum Air Supply Pressure = 1.6 Bar
12. If a Series 746-LPA Dry Accelerator (28) is installed, open the
isolation ball valve.
13. If a Series 746-LPA Dry Accelerator (28) is installed, close the
¼-turn vent ball valve. This will set the accelerator.
CAUTION
Take precautions when opening the water supply main control
valve, since water will flow from all open system valves.
Failure to follow this instruction could result in property damage.
•
14. Open the water supply main control valve (2) fully.
15. Confirm that all valves are in their normal operating positions (refer
to the table below).
Valve Normal Operating Position
Piston-Charge-Line Ball Valve Open (Lockable)
Alarm Line Ball Valve Open (Lockable)
Alarm Test Ball Valve Closed
16. Notify the authority having jurisdiction, remote station alarm
monitors, and those in the affected area that the valve is back in
service.
17. Provide test results to the authority having jurisdiction, if required.
I-756LPA.VDS_20
FireLock
®
European Dry Valve Stations
SERIES 756
WITH SERIES 776 LOW-PRESSURE ACTUATOR
I-756LPA.VDS
INSTALLATION, MAINTENANCE, AND TESTING MANUAL
www.victaulic.com
VICTAULIC IS A REGISTERED TRADEMARK OF VICTAULIC COMPANY. © 2006 VICTAULIC COMPANY. ALL RIGHTS RESERVED. PRINTED IN THE USA.
REV_B
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