8
1. Basics
1.4 Functions
1 Constant pressure position
Automatic refilling of the heating water to the adjustable
system pressure.
2 Filter
An integrated filter prevents larger foreign particles from
entering the heating system.
3 Check valve
Prevents the heating water from flowing in the reverse
direction when there is insufficient fill pressure.
4 System separation
Via hose connection with terminal.
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3
4
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