7
Requirements at the installation site
CAUTION!
Warning against illegal operation
Observe the regulations that apply where the device is
installed.
7.1 Requirements for the installation site
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The chlorine dioxide system must not be located outdoors.
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It must be possible to protect the chlorine dioxide system against
unauthorised access.
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The site of the chlorine dioxide system must be protected against
solar radiation and also be frost-proof and well ventilated.
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It must be possible to transport the chemical drums to the system
without obstruction.
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There must be an emergency exit route.
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For installation of the Bello Zon
®
CDL system, a smooth, vertical wall
must be available.
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It should be possible to install the Bello Zon
®
CDL system so that the
chemical drums can be readily placed beneath it (bottom edge of the
Bello Zon
®
at least 1 m above the ground).
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A measuring point should be provided. The sample water line (or a
sampling tap) should be situated at least 2 m downstream of the point
of injection and before the first sampling point.
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A water connection for the diluting water is necessary (minimum pres‐
sure 3 bar).
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A water tap must be installed so that spilled chemicals can be cleared
without danger.
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A floor drain must be installed so that spilled chemicals can be cleared
without danger.
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It must be possible to fit a gas detector.
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There must be a mains connection, with an emergency stop switch
outside the installation room.
The following applicable regulations (within Germany) provide more
detailed information:
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The accident prevention regulation (UVV) "Chlorination of Water", [in
German] GUV-V D5 (previously GUV 8.15), April 1979
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"Chlorine dioxide dosing systems", DVGW Merkblatt (data sheet) W
624, DVGW e.V., Eschborn, 02/2010
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"Chlorine dioxide in water treatment", DVGW Merkblatt (data sheet) W
224, DVGW e.V., Eschborn, ISSN 0176-3504
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The directives for the protection of ground water against pollution [in
German] (section 19 of the German Federal Water Act (WHG) Edition
31/07/2009)
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The German Ordinance on Hazardous Substances (GefStoffV) -
especially section 17 (general duty of protection) and section 20
(operating instructions; see also Accident Prevention Regulations sec‐
tion 9) [in German]
Safety notes
Note for the system operator
Requirements at the installation site
16