- 12 -
USE
INSTRUCTIONS FOR USE
cording to the outside temperature, position-
ing the knob as follows:
Fig. 2.6
From 5 to 15 °C
Between
- 5 and +5 °C
Lower
than - 5 °C
Your qualified installer will be able to recom-
mend the most suitable adjustment for your
system.
The temperature and pressure gauge (4, Fig.
1.3 on page 8) will allow you to check that the
set temperature is obtained.
Adjustment of temperature WITH the exter-
nal temperature probe (optional)
When the boiler is connected to the external
temperature probe (optional), the temperature
of the c.h. flow is automatically adjusted with
reference to the external temperature.
In this case the boiler must be properly set by
the Installer (section "External temperature
probe setting (optional)" to page 40) and the
c.h. flow temperature control knob 7 must be
positioned as illustrated in Fig. 2.7.
Fig. 2.7
+15
---15
2.5 Extinguishing
To turn the boiler off set the function selector 7
to the position shown in Fig. 2.8.
The appliance operation light 9 will flash every
4 seconds.
Fig. 2.8
9
7
When you do not expect to use the boiler for
a long period:
• Switch off the electricity supply to the boiler,
by means of the fused spur isolation switch;
• Shut off the gas supply cock 13 and the
valves for the water circuits fitted under the
boiler (Fig. 2.9).
• Empty the water circuits, if necessary, as
shown in the
installation instructions
in the
section
maintenance
.
Fig. 2.9
11
Closed
position