23
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 :
3
2
1
CLICK
CLICK
4
6
5
CLICK
7
10
8
9
9
Summary of Contents for 628 25
Page 49: ......
