4.5
Emergency closure
Open the emergency closure
• Move the emergency closure lever <1> as far
as it will go in the direction of the arrow <B>, the
emergency closure is opened (operating state).
Close the emergency closure
• Move the emergency closure lever <1> as far
as it will go in the direction of the arrow <A>, the
emergency closure is closed. No water can run
through the backwater valve
2019/07
Installation
22 / 72
B
A
1
Ill. [6]
1
016-052