Steps to open the case
Step 1
High voltage may be present at DC capacitors. Before
opening the external cover, wait for at least five minutes
after turning off the UPS.
Verify the input source (voltage and frequency) before
performing service work.
DO NOT short circuit the batteries.
If the battery connectors (P6, P8) are disconnected,
plug in the input power cord and verify that that there is
input power available before re-connecting the battery
connectors.
After servicing the UPS and before restarting it, perform
a polarity test on the batteries, and make sure the screws
and connectors are tight.
After opening the cover, always make sure that all wires,
connectors, and screws are tight. Then, check if any
components inside are discolored.
Remove related screws as shown in STEP 1.
Slide external cover in the direction shown in STEP 2.
You will see the internal panel.
To open the external case, follow the illustrations below:
6.
7.
1.
2.
3.
4.
1.
2.
3.
