EXTERNAL INSPECTION
WARNING
The building owner or their representative is responsible for
maintaining the fire protection system in proper operating
condition.
To ensure proper system operation, valves must be inspected
in accordance with current national standards or in accordance
with the requirements of the local authority having jurisdiction
(w
hichever is more stringent). Always refer to the instructions
in this manual for additional inspection and testing require-
ments.
The frequency of inspections must be increased in the
presence of contaminated water supplies, corrosive/scaling
water supplies, and corrosive atmospheres.
Dep
ressurize and drain the piping system before attempting to
install, remove, adjust, or maintain any Victaulic products.
Failure to follow these instructions could cause system failure,
resulting in death, serious personal injury, and property damage.
•
•
•
•
NOTICE
Any activities that require taking the valve out of service may
eliminate the fire protection provided.
Consideration of a fire patrol should be given for the affected
areas.
Before servicing or testing the system, notify the authority
having jurisdiction.
•
•
•
WEEKLY INSPECTION
1. Perform a visual inspection on the valve and trim on a weekly
basis. NOTE:
If the dry system is equipped with a low-pressure
alarm, monthly inspections may be sufficient. Contact the local
authority having jurisdiction for specific requirements.
MONTHLY INSPECTION
1. Record the system air pressure (7) and water supply pressure
(5). Confirm that the water supply pressure is within the range of
normal pressures observed in the area. Significant loss of water
supply pressure could indicate an adverse condition in the water
su
pply. Confirm the proper water-to-air ratio is being maintained.
2. Confirm that there is no leakage from the intermediate valve
chamber. The restricted orifice/alarm line drain (18) should not be
leaking water or air.
3. Inspect the valve and trim for mechanical damage and corrosion.
Replace any damaged or corroded parts.
4. Confirm that the dry valve and trim are located in an area that is
not subject to freezing temperatures.
5.
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
6. If a Series 746-LPA Dry Accelerator (28) is installed, record the
pressure in the air chamber of the dry accelerator. The pressure
in the air chamber should equal the system air pressure within the
allowable tolerances of the gauges. If the air chamber's pressure is
below the system air pressure, follow the "Troubleshooting" section
on page 39.
I-756LPA.VDS_16
FireLock
®
European Dry Valve Stations
SERIES 756
WITH SERIES 776 LOW-PRESSURE ACTUATOR
I-756LPA.VDSINSTALLATION, 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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