Series 751 FireLock® Alarm Check Valve
11
5.
Open the system’s main drain valve completely.
6.
With the system’s main drain valve open completely, record the
water supply’s pressure as the residual pressure.
7.
Close the system’s main drain valve slowly.
8.
Record the water pressures established after closing the sys-
tem’s main drain valve.
9.
Compare the residual pressure reading, taken above, to the
residual pressure readings taken in previous main drain tests. If there is
degradation in the residual water supply readings, restore the proper
water supply pressure.
10.
Open the alarm line ball valve.
11.
Confirm that all valves are in their normal operating positions
(refer to table below).
12.
Notify the authority having jurisdiction, remote station alarm mon-
itors, and those in the affected area that the valve is back in service.
Provide test results, as required, to the authority having jurisdiction.
CAUTION
• The alarm line ball valve must be open to allow alarms to activate.
Failure to follow this instruction will prevent alarms from activating
during a fire condition, resulting in personal injury and/or property
damage.
S
y
s
tem
’s
Main
Drain Valve
S
y
s
tem
’s
Main
Drain Valve
Valve
Normal Operating Position
Alarm Line Ball Valve
Open
Alarm Test Ball Valve
Closed