Series 751 FireLock
®
European Alarm Check Valve Stations
6
PLACING THE SYSTEM IN SERVICE
1.
Confirm that system drains are shut and the system is free
of leaks.
2.
Open the auxiliary drains.
3.
Close the alarm line ball valve (11) to prevent alarms from
operating while the system is filling. Alarms and electrical panels
(controlled by an alarm flow switch on the riser) cannot be inter-
rupted.
NOTE:
If alarm activation is possible, notify local fire
companies that the system is being serviced.
4.
Open the water supply’s main control valve (3) slowly.
4a.
Allow the system to fill with water completely. Allow water
to flow from the auxiliary drains to release all trapped air from the
system.
4b.
When a steady flow of water occurs and all air is released
from the system, close the auxiliary drains in the system.
4c.
Record the system pressures. The system pressure
gauge (16) should be equal to or greater than the water supply
pressure gauge (5).
5.
Open the alarm line ball valve (11). Lock the ball valve, as
required.
6.
Confirm that all valves are in their normal operating posi-
tions.
7.
Notify the authority having jurisdiction, remote station
alarm monitors, and those in the affected area that the system is
in service.
CAUTION
• Make sure the Series 751 Alarm Check Valve is properly heated and
protected from freezing temperatures and physical damage.
Failure to follow these instructions could cause improper valve operation,
resulting in personal injury and/or property damage.
CAUTION
• For proper operation of alarms in a wet system, it is important to ensure
that all air is removed from the system. Auxiliary vents may be required to
release all trapped air from the system.
Failure to follow these instructions could cause improper valve operation,
resulting in personal injury and/or property damage.
CAUTION
• Take precautions when opening the water supply’s main control valve,
since water will flow from all open system valves.
Failure to follow this instruction could cause personal injury and/or property
damage.
11
3
CAUTION
• The alarm line ball valve must be open to allow alarms to activate.
Failure to follow this instruction will prevent alarms to activate, resulting in
serious personal injury and/or property damage.
11