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10
11
Fig. 2.5
The LCD display displays the boiler temper-
ature (primary circuit) and the
symbols Fig. 2.6.
Fig. 2.6
2.4
C.H. circuit temperature
The output temperature of C.H. water can
be adjusted by pressing keys 13 (reduce)
and 14 (increase) (Fig. 2.5) from a minimum
of about 25°C to a maximum of about 80°C.
Press one of the two keys once to display
the "set" value. Press again to access the
modification.
Signal given by the LCD display:
• The heating flow "set" temperature and
the symbol
flash. The background of
the display is illuminated (Fig. 2.7).
Fig. 2.7
- 16 -
INSTRUCTIONS FOR USE
15
14
13
12
and
Adjustment of temperature WITHOUT
the external temperature probe (option-
al) fitted
Adjust the C.H. water flow as follows:
• from 25 to 35 with an external tempera-
ture included between 5 and 15°C
• from 35 to 60 with an external tempera-
ture included between -5 and +5°C
• from 60 to 80 with an external tempera-
ture less than -5°C.
Your installer can recommend the best suit-
ed settings for your heating system.
You can see the actual flow temperature
from your boiler at all times on the LCD
screen.
Power request in C.H. power.
When the boiler has a call for heat in the
C.H. mode, the
the display followed by an increase of the
C.H. water flow temperature. The
bol flashes (Fig. 2.8).
Fig. 2.8
Adjusting the C.H. temperature with the
external temp. probe installed
When the external temp. probe (optional)
is installed your boiler automatically adjusts
the temperature of the C.H. system water
flow in relation to the external temperature.
In this case the boiler must be set by a qual-
ified installer (see "Setting the K coefficient
of the external temperature probe" on page
54).
However, if the ambient temperature is not
comfortable, the flow temperature of the
heating system can be adjusted by ± 15°C
by pressing on keys 13 (reduce) and 14 (in-
crease) (Fig. 2.5).
symbol is displayed on
sym-
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