Maintenance (continued)
• Batteries
Important :
The batteries must be replaced when the AELU no longer operates for its rated duration.
Replacing and checking the batteries when a standby power fault or disconnected batteries fault is indicated
(orange LED lit continuously), or during preventive maintenance.
To do this :
CLICK
CLICK
2
CLICK
7
1
3
4
9
23
6
8
10
5
9