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Maintenance
2018/02
5.2
Replacing the battery
The Comfort PLUS SD control unit is equipped with batteries in case of
a power outage. These batteries must be replaced if this is indicated on
the display.
To replace battery:
Isolate the system! Make sure that cables and electrical components
are disconnected from the power supply during work.
y
Move the main switch (24) on the control unit to the OFF
position and open the housing.
y
Remove the cable ties, take both batteries (23)
out and replace them by new ones.
y
Fix the batteries in place using the cable ties.
23
24
Ill. [9]
