56 Service and maintenance
Replacing the battery
The instructions below describe how to
replace the battery that powers the real-
time clock of the control panel.
1. Turn the lid on the back of the control
panel counter-clockwise until the lid
opens.
2. Replace the battery.
3. Put the lid back and tighten it by
turning it clockwise.
Control panel software updates
If the control panel software needs to be updated, contact ABB.