Emergency Overflow Connection; Drinking Water Connection - Graf 350021 Notice D'installation Et D'utilisation

4.2

Emergency overflow connection

The emergency overflow is to be constructed with commercial 50 mm canalisation pipes for the connection
to the main canalisation. We advise that the emergency overflow should be so constructed with an 86°
elbow that a siphon is formed. The system may only be installed in rooms with a floor drainage system as
in the case of accidental damage the system may loose water.
When operating normally no water is lost.
4.3

Drinking water connection

For connecting the float valve to the mains water supply we recommend using a ¾" reinforced hose for the
installation. Take care when tightening the supply pipe that the valve does not also twist around
problem free operation can no longer be guaranteed. An additional shut-off valve will also make any
future maintenance work less complicated.
Before the installation the mains water pipe system must be well flushed through. A fine filter should be
installed to guarantee a long life and trouble free functioning of the float valve and the 3 way switch-over
valve.
Attention:
Line pressure from the
mains water max. 0.3 –
4.5 bar!
Drinking water 3/4"
outside threads
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4. Installation and assembly
Emergency overflow
DN 50
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