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decimal point, and the letter indicates the
unit of measure (bar) (Fig. 2.2).
Fig. 2.2
• Open the valves on the filling loop and, at
the same time, check the heating circuit
pressure on the display.
The pressure must be between 1 bar and
1.5 bar (e.g. 1.3 bar in (Fig. 2.2).
Once done, close the valves on the filling
loop.
If you experience any difficulty with the
operation of the boiler, switch off the
boiler immediately at the fused spur iso-
lation switch and contact your Installer
or an approved Service Engineer.
Air introduced into the boiler during this fill-
ing process will vent through the automatic
air purger fitted to the boiler. You may also
find it necessary to vent air from your radia-
tor circuit using your radiator key, however
be aware that excessive venting will cause
the pressure in the system to drop.
Always ensure that the pressure gauge is
set at the required pressure.
INSTRUCTIONS FOR USE
2.3
Ignition
• Check that the valves located in the lower
part of the boiler are open Fig. 2.3.
Open
position
Fig. 2.3
• Turn on the electricity supply to the boil-
er, switching on the fused spur isolation
switch. The LCD display displays the state
within which the boiler is found (last mem-
orised) Fig. 2.4.
Fig. 2.4
C.H. functioning
• Press the key 12 for 1 second until both
and
symbols appear on the dis-
play Fig. 2.5.
Stand-by
The dashes light up
in sequence to simu-
late a scrolling mo-
tion
Winter
- 15 -
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