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4
5
6
7
8
30° 40° 50° 60° 70° 80°
Power On
Neon
Hot Water
Fig. 5
Neon
Central
Heating Neon
30° 40° 50° 60° 70° 80°
On/Off/Reset
Selector Switch
Off Position
Fig. 6
9
Burner On
Neon
Fig. 4
Position (i)
(Central Heating or Hot Water)
Fig. 7
Position (ii)
(Hot Water)
Fig. 8
3.1
1. Ensure that the electricity and gas supplies are
turned on. Check that the central heating pressure
is between 0.2 and 1.0 bar (Fig. 4).
2. Turn the On/Off/Reset selector switch either
anti-clockwise from the off position (Fig. 6) to both
central heating and hot water or clockwise to
domestic hot water only.
3. In either position the green power on indicator
(
4. Position (i) In this position the boiler will
provide central heating or domestic hot water
according to demand (Fig. 7). The central heating
(
Neons 4 to 9 will illuminate as the temperature
2
rises.
5. Position (ii) In this position the domestic hot
bar
water will be heated as demanded (Fig. 8). The
hot water neon will illuminate (
Central Heating
heating will not operate even if timers, room
System Pressure
thermostat etc. are calling for heat.
Gauge
6. Depending upon the system, domestic hot
water may be given priority when the selector
2
switch is in Position (i).
bar
7. The boiler will light automatically on demand.
8. The orange burner on neon (
when the boiler is operating and the main burner is
on (Fig. 5).
IMPORTANT: When the selector switch is in
the '0' (Off) position the electrical supply to the
boiler is isolated. The boiler will not operate.
3.0 Operating the Boiler
Operating the Boiler
) will illuminate (Fig. 5).
) or hot water neon (
) will illuminate (Fig. 5).
). The central
) will illuminate
5
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