Ferroli AQUA1 PLUS 160 HT Manual De Instalación Y Mantenimiento página 40

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Installation and maintenance manual
5.1.1.4
Error messages
Pr1
Error in probe in upper part of the boiler
Solutions:
- Check that the type of probe is in conformity
with parameter P0 settings;
- Check the probe is intact;
- Check the equipment-probe connection;
- Check the temperature of the upper part of
the boiler.
Main consequences:
- The equipment stops working.
Pr2
Error in probe in lower part of the boiler
Solutions:
- The same as the previous situation but relating
to the probe in the lower part of the boiler.
Main consequences:
- The equipment stops working.
Pr3
Error in evaporator probe
Solutions:
- The same as the previous situation but relating
to the evaporator probe.
- The equipment stops working.
5.1.1.5
Defrosting
Defrosting can be enabled in the following way:
Automatically, when the temperature of the
evaporator
is
below
parameter d17 (only if P4 has a value other
than 0);
In any case, between one defrosting procedure
and another, the compressor must have been left
switched on for a period either longer than or
equal to d18 minutes. Otherwise the request to
enable the defrosting procedure will not be
accepted.
If P4 = 1, d2 represents the temperature of the
evaporator,
above
procedure is terminated. Viceversa, if P4 = 0 or P4 =
2, parameter d2 is not taken into consideration.
If during the defrosting procedure the evaporate
or probe is above the threshold set by means of
that
established
which
the
defrosting
parameters d2 and P4 = 1, the request to enable
the defrosting procedure is not accepted.
The defrosting procedure consists of three stages:
Defrosting stage: Parameter d3 establishes the
maximum
Output status:
The compressor is active if d1 = 1,otherwise
-
it is switched off;
The defrosting relay is active if d1 = 0,1
-
otherwise it is switched off;
The fans are switched on if d1 = 2,
-
otherwise they are switched off.
If the "Anti-Legionella" or the "Overboost"
functions are in progress, the defrosting
procedure will not be enabled.
5.1.1.6
Configuration parameter settings
To carry out the procedure:
Make sure that the keyboard is not locked
(paragraph Errore. L'origine riferimento non è
stata trovata.) and that no other advanced
procedure is in progress;
Keep the
seconds: the display will show "PA" (password);
Press and release the
Press and release either the
within 15 seconds to set "-19" on the display;
Press and release the
out any other operations for 15 seconds;
Keep the
seconds:
parameter "SP1".
To select a parameter:
Press and release either the
To change a parameter:
Press and release the
Press either the
increase or reduce the parameter value
(within 15 seconds);
in
Press and release the
out any operations for 15 seconds.
To exit the procedure:
Keep the
seconds or do not carry out any operations for
60 seconds (any changes will be saved).
Switch the equipment off and then back
on again to make the changes made to
the parameters effective.
duration
of
the
and the
keys pressed for 4
key;
or the
key or do not carry
and the
keys pressed for 4
the
display
will
show
or the
key;
or the
key to either
key or do not carry
and the
keys pressed for 4
stage.
key
the
first
key.
pag. 16 / 23

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