50
2. Check the turn-off function.
a. Verify or lower the sprinkler system pressure is below the sprinkler system operating
pressure (Example: 18 psig (1.2 bar)).
b. If nitrogen generator is not running, manually turn on nitrogen generator and allow
sprinkler system to refill and generator shut off.
c. If sprinkler system pressure has returned to the sprinkler system operating pressure
(Example: 18 psig (1.2 bar)), the turn-off function is operating properly.
d. If sprinkler system pressure is not returned to the sprinkler system operating pressure
(Example: 18 psig (1.2 bar)), use the Air Maintenance Device Pressure Adjustment
Procedure (section 6.f.) in the Maintenance Section of this manual.
3. Repeat process to confirm nitrogen generator is automatically turning on and turning off as well
the sprinkler system air gauge is operating between the nitrogen generator turn-on pressure
(Example: 15 psig (1 bar)) and sprinkler system operating pressure (Example: 18 psig (1.2 bar)).
To Next Page
Loading...