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Turn on the UPS power switch ("1" position) and verify that the "AC Normal" LED
(Green) illuminates after a short delay. This is the AC
Normal Mode. Leave the UPS
in this position for approximately 30 seconds minimum.
Depress the UPS "Test/Alarm Silencer" rocker switch toward the "Test" position and
hold for 10 to 15 seconds. Verify that the audible alarm sounds after a five (5)
second delay (twice every two (2) seconds), the "AC Fault" LED turns yellow and the
"AC Normal" LED extinguishes. This is the Normal Inverter Mode (battery operation).
Release the test switch and unit will return to the AC Normal Mode after a short
delay.
NOTE: If any condition experienced during the above test procedure was not as
described, contact your supplier or Para Systems, Inc. customer service and report
any problem observed. If tests proceeded normally, the UPS is ready for load
testing.
LOAD TESTING
Turn off the UPS power switch and plug your critical load(s) into the UPS output
receptacle(s). Then turn the power switch back on and turn on your loads.
To verify that the UPS will accommodate the total load added:
1. Ensure that data is saved prior to test in case power is lost during test.
2. Depress the MINUTEMAN test switch for 10 to 15 seconds while running
maximum load power. This testing should be repeated 5 to 10 times.
3. Verify that UPS and load functions were proper during this testing (see items
under INSTALLATION AND PRELIMINARY TESTING for UPS function). If
all functions were proper, the UPS is ready for operation.
OPERATION
After testing above, keep commercial power applied to the UPS with the power switch on for a
minimum of six (6) hours to permit full battery recharge. Loads can be powered during recharge.
For daily operation you can turn on all UPS loads with the UPS power switch or you can leave the
UPS on and turn on your critical equipment each day. With the standard UPS configuration, the
battery charger runs only when the power switch is on. However, turning the unit off each night
and over the weekend will create no problems for the batteries or the charger.
When a brownout, power interruption, power outage, over-voltage condition or a drastic
frequency shift occurs or the AC fuse blows (AT650, AT800 or AT2300) or input breaker trips
(AT1200 or AT 1600), the MINUTEMAN UPS will switch to the normal inverter mode - "AC
Normal" LED will extinguish, audible alarm will sound after a five (5) second delay and the LED(s)
indicating the problem will illuminate. A brownout will cause the "AC Fault" light to turn yellow, a
power interruption or outage will cause the "AC Fault" light to turn yellow and the "AC Fail" light to
illuminate (RED), an over-voltage condition will cause the "AC Fault" light
to turn red, a drastic