200. Maintenance
200.1 Safe Shut Down Procedure
CAUTION: To avoid possible equipment damage or personal injury, assume that there is AC
voltage present inside the LG inverter system unit any time AC input power or DC battery
voltage is applied. The inverter is capable of providing output voltage from the batteries even
when there is no AC input line voltage. When AC input voltage is present, the unit can provide
output voltage even when the batteries are dicsonnected.
Do not touch components inside the unit. DC voltage is always present at the batteries and
battery cables.
Final Shut Down Procedure
1.
Open the unit’s front access panel.
2.
Place unit battery circuit breaker (CB-1) in the off position
t
o make sure the unit will not supply
out
put
voltage.
3.
Place the
AC Input circuit breaker
at the service panel in the
OFF
position.
CAUTION: HAZARDOUS ENERGY IS STORED IN CAPACITORS INSIDE THE UNIT.
AFTER TURNING OFF SWITCHES, ALLOW 5 MINUTES FOR CAPACITORS TO
DISCHARGE
BEFORE ATTEMPTING ANY SERVICE PROCEDURES.
4.
If the service technician does not need to access the inside of the unit, keep the unit’s front cover/
door closed.
5.
If the unit will be shut off for an extended period of time, recharge battery every 60 to 90 days.
CAUTION: The battery will be damaged and the warranty voided if not routinely recharged.
NOTE: To turn power back on, follow the “System Start-up Procedure” outlined in Section
108.
Be sure to complete all of the steps to
e
nsure
the unit will operate properly.
200.2 Routine System Maintenance
The
LG
inverter system unit is designed to provide years of trouble-free operation. The unit does
require some routine attention to
ensure
peak performance. The Manufacturer recommends a
Preventative Maintenance check be performed by a qualified service technician at least every six
months.
The technician must observe important safety precautions while performing the following
recommended tasks:
• Inspect and clean the unit interiors;
• Inspect all batteries for leaks, case swelling or terminal corrosion;
• Perform an emergency operation test to check operation of all critical connected to loads
200.3 Manual Routine Inverter Tests
NFPA101 requires that Emergency Lighting Equipment be tested on a monthly basis for a period of at
least 5 seconds, and a minimum of 90 minutes once a year. We
strongly
recommend these guidelines
be followed to ensure system readiness, and to prolong battery life. The LG system was designed with
a front panel test switch to facilitate monthly testing. Simply depress the button and hold to test the
inverter at any
time. Once
released, the LG will revert back to standby operation. For annual 90-minute
discharge or other prolonged tests, simply turn off the AC Input breaker at the service panel.
15.
Summary of Contents for DUAL LITE LiteGear LG Series
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