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Adjusting the heating temperature with
an external sensor installed
When the optional external sensor is in-
stalled, your boiler will automatically adjust
the heating system's delivery water tem-
perature according to the outdoor tempera-
ture.
In this case, the boiler must be set by a
qualified installer (see "Enabling operation
with the external sensor and setting the K
coefficient" on page 44).
If the room temperature is not comfortable,
you can increase or decrease the heating
system delivery temperature by ± 15°C us-
ing the 16 (decrease) and 17 (increase) but-
tons (Figure 2.5).
2.4 Domestic hot water tempera-
ture
The domestic hot water temperature can
be adjusted using the 13 (increase) and
14 (decrease) buttons (Figure 2.5) from a
minimum of approx. 35°C to a maximum of
approx. 60°C. The first time one of these
two buttons is pressed, the "set" value is
displayed. The second time it is pressed,
the value can be changed.
Signal on the LCD display:
• the "set" value of the domestic hot water
and the
symbol flash. The display
background lights up (Figure 2.9).
Figure 2.9
- 12 -
USER INSTRUCTIONS
RESET
bar
Adjustments
Adjust the temperature of the domestic hot
water to a value that suits your needs.
Limit the need to mix hot water with cold
water.
In this way, you can take full advantage of
the automatic setting.
If the water is particularly hard, we recom-
mend setting the boiler temperature to be-
low 50°C.
In such cases, we recommend installing a
water softener in the DHW system.
If the maximum flow rate of the domestic hot
water is too high for a sufficient temperature
to be reached, contact an authorised sup-
port technician to install a flow rate limiter.
Domestic hot water demand
When the boiler receives a request for do-
mestic hot water, the display shows the
symbol followed by an increase in the tem-
perature of the domestic hot water. The
symbol flashes (Figure 2.10).
Figure 2.10
RESET
bar
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