When AC power is applied, the charging indicator light is illuminated, indicating the battery is being charged. When
power fails,the emergency ballast automatically switches to emergency power, operating one lamp at reduced
illumination. When AC power is restored, the emergency ballast returns to the charging mode and delays AC ballast
operation for five seconds to prevent false-tripping of AC ballast (end-of-lamp-life) shutdown circuits. This emergency
ballast will operate 13 W through 42 W lamps for a minimum of 90 minutes.
Although no routine maintenance is required to keep the emergency ballast functional, it should be checked
periodically to ensure that it is working. The following schedule is recommended:
1. Visually inspect the charging indicator light monthly. It should be illuminated.
2. Test the emergency operation of the fixture at 30-day intervals for a minimum of 30 seconds. One or two
lamps should operate at reduced illumination.
3. Conduct a 90-minute discharge test once a year. One or two lamps should operate at reduced illumination for
at least 90 minutes.
! REFER ANY SERVICING INDICATED BY THESE CHECKS TO QUALIFIED PERSONNEL !
WIRING THE EMERGENCY BALLAST
> Determine the type of AC ballast installed in the fixture.
> Select the appropriate wiring diagram to connect the emergency ballast to the AC ballast and lamp.
> See back page for more detailed wiring schematics. The emergency ballast can be used with multi-lamp
fixtures. It operates one or two lamps in the emergency mode.
> On switched fixtures, an additional unswitched hot (120 or 277 VAC) lead must be connected to the
emergency ballast.
> The emergency ballast must be connected to an unswitched 120 or 277 VAC power source. Do not connect to other
voltages. After fixture installation is complete:
A. Join the battery connector.
B. Supply AC power to the emergency ballast.
C. Join inverter connector.
> For short-term testing of the emergency ballast, the battery must be charged for at least one hour. The
emergency ballast must be charged for at least 24 hours before conducting a long-term test.
Refer to OPERATION.
> In a readily visible location, attach the label
"CAUTION - This Unit Has More Than One Power Supply
Connection Point. To Reduce The Risk Of Electric Shock, Disconnect Both The Branch Circuit-Breakers Or
Fuses And Emergency Power Supplies Before Servicing."
STEP #4
OPERATION
MAINTENANCE
INSTALLATION
3
