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113904 – System Users Manual
14
C H A P T E R 7
MAINTENANCE AND SERVICE
The Self-testing feature of the inverter ensures that the system is tested at least once per
month for 5 minutes and once per year for 90 minutes. If there are any problems with the
self-tests, the fault log shall indicate which faults occurred. Please see the fault descriptions
and troubleshooting guide.
A few simple maintenance operations performed periodically will help ensure many years of
trouble free operation. Battery terminals should be checked for tightness and corrosion. If
severe corrosion is evident, maintenance is required to correct this situation.
Since the unit depends on unrestricted airflow for cooling of power handling components, it
is important to keep the air vents free of any obstruction. If the environment tends to be
extremely dusty, occasionally blow away any accumulation of dust on components. Please
follow the shutdown procedure before cleaning.
CAUTION: Follow the shutdown procedure (See Chapter 3) before cleaning. An authorized
technician only should perform Service!
Table 7.1 Preventive Maintenance Schedule
PERFORM SERVICE EVERY:
SERVICE TO PERFORM:
3 MONTHS 6 MONTHS 12 MONTHS
X
1. TEST UNIT:
NOTE: Perform manual test only when critical load is
connected but not required.
----- Output voltage should be present.
----- Confirm operations of front panel indicators.
X
2. INSPECT BATTERIES:
----- All connections are tight.
----- Connections have no corrosion. (Clean if
necessary).
X
CLEAN UNIT: NOTE: Unit must be shut down
during this service.
----- Inspect air vents and clean if necessary.
----- Clean excessive dust from inside cabinet(s).
----- Clean excessive dust from fan(s).
"X" Indicates when to perform service. Lines below the "X" are for the date of service.