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1.2.2 AUX 3 output
0
None.
1
Error alarm: the contact is closed in case of a system er-
ror.
2
Humidistat alarm: the contact is closed when the AUX1
input is set as a humidistat and the contact is closed.
3
Heating and DHW external request: the contact is
closed to generate a heat request towards an external
source for space heating and DHW.
4
Cooling request: the contact is closed to generate a
cooling request towards an external source.
5
External DHW request: the contact is closed to generate
a heating request towards an external source for DHW.
6
Heating / Cooling mode: the contact is closed when
the cooling operating mode is active. The contact is
opened when the operating mode is heating or stand-
by.
7
External heating request: the contact is closed to gen-
erate a heating request towards an external source for
space heating.
1.2.3 AUX 4 output
0
None.
1
Error alarm: the contact is closed in case of a system er-
ror.
2
Humidistat alarm: the contact is closed when the AUX1
input is set as a humidistat and the contact is closed.
3
Heating and DHW external request: the contact is
closed to generate a heat request towards an external
source for space heating and DHW.
4
Cooling request: the contact is closed to generate a
cooling request towards an external source.
5
External DHW request: the contact is closed to generate
a heating request towards an external source for DHW.
6
Heating / Cooling mode: the contact is closed when
the cooling operating mode is active. The contact is
opened when the operating mode is heating or stand-
by.
7
External heating request: the contact is closed to gen-
erate a heating request towards an external source for
space heating.
1.2.5 AUX P2 circulator setting
0
Auxiliary circulation pump: the circulation pump fol-
lows in parallel the switching on / off of the P1 primary
circulation pump.
1
Cooling circulation pump: activates when the cooling
mode is selected and the heating request is active.
2
Buffer circulation pump: the circulation pump is acti-
vated when there is a heating request and the buffer
function is active.
3
DHW circulation pump: the circulation pump is activat-
ed depending on the auxiliary schedule programming
and when a thermal sanitisation cycle is in progress.
54 / EN
1.2.6 Pro-Tech anode active
Indicates the presence of the impressed-current anode on the
DHW calorifier.
1.3
CH SECONDARY HEAT SOURCE ACTIVATION
1.3.0 CH aux heat source activation logic
0
Faulty heat pump and integration: during the heating
cycles the auxiliary sources (output auxiliary contacts
or heating elements) can activate both in integration
mode together with the heat pump and also if the heat
pump is unavailable.
1
Faulty heat pump only: during the heating cycles the
auxiliary sources (output auxiliary contacts or heating
elements) can activate only if the heat pump is unavail-
able.
1.3.1 Active resistance stages
Defines the number of active stages of the integration heating
element in heating mode.
NOTE:
if set to 0 and there is no other auxiliary energy source, comfort
during the heating mode is not guaranteed.
1.3.2 ECO / COMFORT
Defines the start-up delay of the integration heating elements
from most economical/ecological (longer delay time) to most
comfortable (shorter delay time).
Press the selector
. Turn the selector
sired item.
1.4
DHW SECONDARY HEAT SOURCE ACTIVATION
1.4.0 DHW aux heat source activation logic
0
Faulty heat pump and integration: during the DHW
cycles the auxiliary sources (output auxiliary contacts
or heating elements) can activate both in integration
mode together with the heat pump and also if the heat
pump is unavailable.
1
Faulty heat pump only: during the DHW cycles the
auxiliary sources (output auxiliary contacts or heating
elements) can activate only if the heat pump is unavail-
able.
1.4.1 Active resistance stages
Defines the number of active stages of the integration heating
element in DHW mode.
NOTE:
if set to 0 and there is no other auxiliary energy source, comfort
during the DHW mode is not guaranteed.
a
If there are no back-up energy sources or if the
back-up energy sources are disabled (Par. 1.4.1),
the anti-Legionella cycle cannot be completed.
Commissioning
to choose the de-
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