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5
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Maintenance
Please follow the installations notes under section 3.4. to install the UPS.
5.1 Ventilator maintenance
The continuous operating time of fan is 20000 to 40000 hours. This time will be shorten if the
temperatures increases. Please check the fan periodically and ensure that it blows wind out.
5.2 Battery maintenance
Inside the series standard models are maintenance free, sealed lead acid batteries. The
service lifetime of the battery depends on environmental temperature and the discharging /
charging cycles. It will be shorten when temperature is rising or if the battery is deeply
discharged. Therefore, a regular maintenance is recommended to keep the batteries in good
condition.
1) Most appropriate operating temperature is 15-25°C.
2) Avoid small
discharge current. Don’t let operate the UPS continuously during 24
hours in battery mode.
3) Charge the battery every 3 months for at least 12 hours if the battery has not been
used. If the ambient temperature is high, you have to charge it every 2 months.
4) Check and clean the battery connections regularly on the models with long back-up.
If autonomy time becomes much shorter than before or if a battery default is displayed on
LCD, then contact your distributor to clear up if the batteries need to be replaced or not.
CAUTION!
a) Do not short-circuit the battery, otherwise this may cause fire.
b) Do not open or damage the battery: released electrolytes are harmful
to eyes and skin.
5.3 Visual control
Keep the ventilation of UPS in good condition.
5.4 Control of UPS status
1) Verify if any fault did happen, a fault indicator lights or any alarm is indicated.
2) Search and find the cause when the UPS is operating in bypass mode.
3) When the UPS is operating in battery mode, then make sure that it is normal;
otherwise search and find the cause.
