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28 Chapter 4 Maintenance and Storage
E1-20010329-C-1.0
Notice
1. Never short-circuit the battery terminals, which may result in fire.
2. Never open the battery, as the electrolyte is harmful to human body. In the event of
inadvertent contact of electrolyte, immediately rinse it off with water and go to hospital
for treatment .
II. Keep Air Vent Unblocked
1. Regularly clean the system, especially the air inlet and air outlet. Make sure the air
flows freely inside the chassis. Use vacuum cleaner for cleaning when necessary.
2. Check the air vents on the front, rear, and side panels, make sure they are not
obstructed .
III. UPS State Check
1. Check whether the UPS is faulty: is the fault indicator ON ? Is fault alarm being
displayed.
2. Is the UPS operating in Bypass mode: in normal case, the UPS operates in Normal
mode; if it is operating in Bypass mode, please find out the reason, for instance:
operator intervention, overload, internal fault, etc.
3. Is the battery discharging: when the Utility is normal, the battery shouldn't discharge;
if the UPS is operating in Battery mode, please find out the reason, for instance: Utility
failure, battery test, operator intervention, etc.
IV. Function Inspection
It is recommended to inspect the UPS functions once half year.
1. Press the OFF button, check whether the buzzer, LED indications and LCD display
are normal (see Section 3.1 Operation Mode). Please do this after confirming that the
Utility is normal and data backup has been done.
2. Press the ON/SILENCE button, check again whether the LED indications and LCD
display are normal and the UPS transfers to Normal mode.
3. When the inverter is in Normal mode (the inverter indicator is on ), press and hold
the ON/SILENCE button for 4 seconds to start battery test. Should any battery problem
be found, immediately find out the problem and solve it.