6
Switching on
1. Check that the pressure in the central heating system is above 0.7 bar and below 1.5 bar on the pressure gauge 16 (Fig. 1)
s
hould it be neccessary to re-pressurise the system, ensure the filling loop
4
5
(
Fig. 2) is attached, open the filling taps
4
3
&
44 (Fig. 2), the pressure gauge will now start to rise, once the pressure reads 1.0 bar, close the filling taps and disconnect
t
he filling loop, periodically check the pressure gauge for correct pressures.
2. Check that the gas service tap is opened at the gas meter and main power is on. Green indicator
26 (Fig. 1) lit.
3
. Open the gas tap
3
9
(
Fig.2).
4. The boiler is now ready to use.
NO
TE
: If the boiler is left off for a long time, some air in the gas pipe can hinder the first
lighting attempt, (please refer to Section 20 Incorrect Operation, page 56).
2. How to Use
Time setting
You can set the time by using the keys underneath the display.
Press the setting key for 5 seconds. The hour digits on the display will begin to flash. Set the correct time by using the or
keys. To alter the minutes, press the setting key again, the minute digits will begin to flash. Set the correct time by using
the or keys, once the correct time has been set, press the setting key once more to accept the time.
Note: This is not a timer for Central Heating control.
To obtain heating
Turn the Central heating knob (30 Fig.1) between mini and maxi.
During the setting flashes and displays the temperature the knob has been
set to.
The flashing will continue for a while after the setting and the display will then
indicate one of the following :
- the heating temperature when the room thermostat is ON (Calling).
- the time when the room thermostat is OFF (Satisfied).
Room thermostat request
pictogram
BURNER ON and output level
Burner operation is indicated by the symbol. The output of the burner is
then indicated by the flame digits above the burner symbol.
Flame digit
Burner ON
Stand by mode
Turn the control knob 30 (Fig. 1) to the OFF position to deactivate the Central
Heating. Leave the ON/OFF button (
26 Fig. 1) On (green light).
During the stand by mode the display indicates the time, the anti-sieze and anti-
frost functions will remain active.
Switch OFF
Press the ON/OFF button (26 Fig.1) the green light will go out.
IMPORTANT:
W
HILE
THE
BOILER
HAS
BEEN
SWITCHED
OFF
THE
CENTRAL HEATING, ANTI-
FROST AND ANTI-SIEZE OPERATIONS WILL BECOME INACTIVE. THE BOILER IS STILL ALSO
CONNECTED
TO
THE
MAINS ELECTRICAL AND GAS SUPPLIES
.
OPEN CLOSED
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