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contact your installer or Service Agent.
Adjustment of the boiler temperature alters
the gas flow at the burner according to the
thermal demand in the system. So it is usual
to see the burner lit at the minimum level for
more or less long periods.
Adjustment
In order to achieve optimal settings for
economy and comfort, we recommend ad-
justing the operating temperature of the c.h.
water according to the outside temperature,
positioning the knob as follows:
From 5 to 15 °C
Fig. 2.6
Your qualified installer will be able to rec-
ommend 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.
2.5
Extinguishing
To turn the boiler off set the function selec-
tor 7 to the position shown in Fig. 2.7.
- 12 -
INSTRUCTIONS FOR USE
Between
- 5 and +5 °C
Lower
than - 5 °C
9
Fig. 2.7
The appliance operation light 9 will flash
every 4 seconds.
When you do not expect to use the boiler for
a long period:
• Switch off the electricity supply to the boil-
er, by means of the fused spur isolation
switch;
• Shut off the gas supply cock 12 and the
valves for the water circuits fitted under
the boiler (Fig. 2.8).
• Empty the water circuits, if necessary,
as shown in section General access and
emptying hydraulic circuits in the service
manual.
12
Fig. 2.8
7
Closed position
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