Ferroli AQUA PLUS 200 LT, Руководство по установке и обслуживанию

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Installation and maintenance manual
pag. 23 / 23
6.2
Magnesium anodes
The magnesium anode (Mg), also called
"sacrificial" anode, avoids any parasitic currents
that are generated inside the boiler that can
trigger corrosion processes on the device surface.
In fact, magnesium is a metal with a lower
electrochemical potential when compared to the
material that lines the inside of the boiler, therefore
it first attracts the negative charges that form with
the heating of the water and that cause it to
corrode. Therefore, the anode “sacrifices” itself by
corroding instead of the tank. The boiler has two
anodes, one that has been mounted in the lower
part and another in the upper part of the tank (the
area that is most subject to corrosion).
The integrity of the magnesium anodes must be
checked at least every two years (even better if
checked on an annual basis). The operation must
be carried out by qualified personnel.
Before performing the inspection, it is necessary to:
Close the cold water input supply;
Empty the water from the boiler (see
paragraph 8.5);
Unscrew the upper anode and check its state
of corrosion, if more than 2/3 of the anode
surface is corroded then it is necessary to
replace it;
Carry out the same operation for the lower
anode.
The anodes have appropriate sealing gaskets, in
order to avoid causing water leaks, it is
recommended to use anaerobic sealant for
threads compatible for use on sanitary and
heating systems. The gaskets must be substituted
both in case of inspection as well as the
replacement of anodes with new gaskets.
6.3
Emptying the boiler
It is advisable to drain the water from inside the
boiler if the boiler is idle for a certain period of time,
especially in low temperatures.
As for the equipment in question, it is sufficient to
disconnect the water supply input connection (see
paragraph 4.4).
Alternatively, during the system installation stage, it
is advisable to install a drain tapwith a hose-
holding connection.
N.B.: It is important to empty the system
in case of low temperatures in order to
avoid the water freezing.
7 TROUBLESHOOTING
In case of problems of equipment performance,
without the occurrence of any of the alarms or
errors described in the relative paragraphs, it is
advisable to check to see if the problem can be
easily solved by checking the possible solutions
specified in the table below prior to seeking
technical assistance.
Problem Possible causes
The heat pump does
not work There is no electricity;
The plug is not correctly
inserted in the socket.
The compressor and/or
the fan do not work The set safety period of
time has not finished;
The scheduled
temperature has been
reached.
The heat pump
continuously switches
itself on and off Wrong programming of
the
parameters/setpoint
and/or hysteresis
values.
The heat pump remains
continuously switched
on and does not switch
off Wrong programming of
the parameters/set
point and/or hysteresis
values.
The electric heating
element does not
switch on Your intervention is not
required
WARNING! In the event that the
operator does not succeed in solving
the problem, switch off the equipment
and seek technical assistance
specifying the device model
purchased.