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Installation
9.1.8 Chemical supply instructions
9.1.9 Sample water connection
9.2 Installation, electrical
9.2.1 Wiring the control
28
WARNING!
Chemicals may escape
If the filling level of the chemical drums lies above the top
edge of the Bello Zon
a leak occurs on the suction side of a metering pump, chemi‐
cals can escape.
–
The top edges of the chemical drums must be below the
bottom edge of the Bello Zon
injection.
The system is supplied with chemicals from one 25 l chemical drum each
of Bello Zon
®
acid and Bello Zon
The sample water line (or a sampling tap) must be situated at least 2 m
downstream of the point of injection and before the first sampling point.
WARNING!
Always install an overload and short circuit protection for the
Bello Zon
®
system.
WARNING!
Only use flexible cabling for all additional cable connections
(contact water meter, ... )!
WARNING!
Should it has been opened, the transparent interface cover
beneath the key panel must be screwed on so that it is pro‐
tected against moisture-ingress!
Otherwise the IP65 degree of protection is not achieved.
1.
Ensure that the control is not live and cannot be switched on!
2.
Loosen the 4 housing screws and place the front part in the parked
position.
3.
Plan which holes will be broken out (colour the desired holes)
Parts inside the device could be damaged.
When breaking out the holes, avoid pushing the
screwdriver deep into the housing!
®
system or the point of injection, then if
®
system or the point of
®
chlorite.
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