- 15 -
USE
INSTRUCTIONS FOR USE
Fig. 2.2
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.
2.3 Ignition
• Check that the valves located in the lower
part of the boiler are open Fig. 2.3.
Fig. 2.3
Open
position
• 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
Stand-by
Hyphens are turned
on in sequence to
simulate running
Winter
Time/Day/Date setting
Enter "programming mode" by holding
down key 17 for 5 seconds (Fig. 2.7) until
the display indicates the
symbol.
Use keys 15 (decrease) and 16 (increase)
Fig. 2.7 to set the time, day and date values,
using keys 9 and 10 to move from one pa-
rameter to the next.
Press key 17 briefly to save the values en-
tered and the display will indicate
OK
to
confirm (Fig. 2.5).
Fig. 2.5
Summary of Contents for Activ A 25S
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