If the system is connected to the fire department, etc., or actuates an internal system, disarm
the appropriate outputs before servicing to prevent actuation. Notify the fire department and
personnel at your facility that a System test is being performed so that any alarm sounding can
be ignored during the test. Notify the fire department before resetting the system.
Inspection, Testing, and Maintenance of the fire alarm system should be performed in
accordance with NFPA 72, The National Fire Alarm Code and all applicable local codes.
Perform the following tests at the recommended interval. Replace the battery set every four
years or if any of the test criteria are not met.
Initiation / Reacceptance
1. Charger Test—With the batteries fully charged and connected to the charger, measure the
voltage across the battery set. It must read 27.3V ± 0.3V.
2. Discharge Test—With full system alarm load, the voltage on a fully charged battery must
not fall below 20.4V after 30 minutes.
3. Load Voltage Test—With full system alarm load, the voltage on a fully charged battery must
not fall below 24.6V after one minute.
1. Semiannually—Perform the Load Voltage Test.
2. Annually—Perform the Charger Test and Discharge Test.