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Check Heat sink, ambient, and room temperatures. Room temperature should be below 30
°
C for
optimum battery life. Heat sink temperatures should be below 50
°
C (may be slightly higher if the
UPS, within the last few minutes, ran off batteries with a fairly high load for several minutes).
Ambient temperature on the control PC board should be below 40
°
C. If higher temperatures are
observed, and the room temperature is below 30
°
C, check for proper fan operation and possible
air blockage.
If you use a generator for a backup system to the utility, make sure the frequency tolerance of the
voltage generated by the generator is well within the limits set on the SELECT PARAMETERS
LCD display of the UPS (normally set to +/- 5 Hz at the factory).
Check to make sure all three fans, exhausting air at top of unit, are functioning (this is
accomplished by simply moving hand over exhaust area to check airflow. Also, note any noise
coming from the fans. If your UPS is equipped with air filters, check and replace if necessary.
Make sure the automatic battery test feature is enabled on your UPS (see section 5.3.6 for details).
Check the historical storage information for problems. Check AC Faults for an abnormally high
number of problems. Check Overloads for problems. Check Shutdowns for abnormal shutdowns.
Check Automatic battery quick and capacity test data for problems with the batteries.
Make sure the date, time, and weekday are correct on the SET DATE/TIME LCD display.
