AquaCare ADN1000-a, Инструкция по эксплуатации

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5. Principle of function
The filter bed granules made of sulphur serve as
growth bodies for bacteria. As the same time the
sulphur is food for these specialized bacteria. Is
any oxygen in the filter the bacteria are able to
take nitrate as an oxygen source. During this
process gaseous nitrogen is generated (forming
small bubbles). This process is called de-
nitrification. The ADN filter does not need addi-
tional food in form of a C-source and therefore
any expensive ORP control is necessary.
As a by-product gypsum (white coating) and bac-
teria agglomeration can be produced. Both sub-
stances are harmless in the produced concentra-
tions.
The whole unit should be flushed either manually
or automatically (model „-a“). The flushing proc-
ess looses the filter bed to prevent blocking and
channel forming that minders the efficiency of
the biological process. Additional excessive bac-
teria will be washed out.
The outlet water should flow back ideally into the
feed flow of a skimmer. Therewith the water gets
back the lost oxygen and the organic substances
(residues of bacteria) produced by the ADN filter
will be flotated by the skimmer.
Because the ADN filter works with autotrophic
growing bacteria - likewise nitrifying bacteria
(oxidation of ammonia and nitrite to nitrate) – the
biological start up time can need 1-10 weeks
6. Installation
6.1. Assembly
To guarantee a faultlessly operation of the
filter the unit should be erected on an even and
stable ground. Uneven parts of the floor must be
flattened with floor pavement or a suitable base.
If the operation location is over 1000 me-
ter over the sea level the motor must be larger
dimensioned to protect it against overheating.
6.2. Water connectors
To operate the unit you must install water and
electrical connections.
The connection with PVC-U must be
glued only with approved adhesion. The process-
ing regulation of the adhesion should be minded.
Connect the feed water (A.) with a inlet pump or
a bypass (e.g. from a skimmer). The feed water
volume is noticed in the chapter “technical data
and protocol”. The model “-i” is able to soak the
water without an extra pump.
Connect the outlet water (B.) with the aquarium
or ideally with the inlet of a skimmer. Water can-
not flow back because of the built-in check valve
(8.).
The ball valve (C.) is an extra outlet for the inten-
sive flushing process. If you use this connection
washed out bacteria and dirt will be drained di-
rectly without polluting the aquarium water cir-
cuit.
You can take samples for analyzing the nitrate
concentration at the sample valve (E.) during op-
eration.
6.3. Electrical connection
The electrical connection must be done by
authorized and qualified persons according with
the local regulation only.
Before opening a terminal box and before
every disassembling of electrical components the
supply voltage must be disconnected at all phases
(contact opening minimum 3 mm).
The electrical supply must be conform with the
data at the rating plate. The filter and the pump
must be protected with fuses.
The main pump of the filter (model “-a”)
is equipped with a motor protection circuit-
breaker.
The main pump of the basic model should be pro-
tected with a motor protection circuit-breaker to
avoid faults.
If the power supply is not stable a voltage guard
may be installed. If the phase are not stable a
phases guard should be installed.