
The rechargeable battery may only be replaced with an original spare
part (art. no. 471 088).
▶
Open the control unit.
▶
Remove the defective rechargeable battery.
▶
Connect the new rechargeable battery.
Clamping strip configuration
Pos.
cable
Functions
Marking on
the connection
strip
3
black – fac‐
tory-fitted
rechargeable
battery con‐
nection
GND
4
red – factory-
fitted
rechargeable
battery con‐
nection
+ AKKU
▶
Insert the replacement battery fuse (right) comprised in the delivery.
▷
The charging time begins approx. 30 seconds after the
rechargeable battery fuse has been inserted.
The green LED on the inside of the lid is lit
Display indication: [Battery charging]
Handling
Grundfix Plus Control backflow trap type 3
40