2.0 Operating the Boiler
4
2.1 Introduction
1. Your Baxi Combi 80Eco is a gas fired, room
sealed, powered flue combination boiler, providing
central heating for your home and mains fed
domestic hot water to taps and shower. It is fully
automatic and does not have a pilot light.
2. Priority is given to the hot water mode - when a
hot water tap is turned on the supply of heat to the
central heating circuit is interrupted.
2.2 Operating the Boiler
1. Ensure that the electricity and gas supplies are
turned on. Check that the central heating pressure
is between 0.5 and 1.0 bar (Fig. 3).
2. Turn the On/Off/Reset selector switch either
anti-clockwise from the off position (Fig. 5) to both
central heating and domestic hot water or
clockwise to domestic hot water only.
3. In either position the green power on neon
( ) will illuminate (Fig. 4).
4. Position (i) In this position the central heating
will operate according to demand or provide
domestic hot water when a tap or shower is turned
on (Fig. 6). Priority is given to domestic hot water.
5. Position (ii) In this position hot water will be
provided when a tap or shower is turned on
(Fig. 7).
6. The boiler will light automatically on demand.
7. The orange burner on neon ( ) will illuminate
when the boiler is operating and the main burner is
on (Fig. 4).
IMPORTANT: When the selector switch is in
the ‘0’ (Off) position the electrical supply to the
boiler is isolated. The boiler will not operate and
the integral timer (if fitted) will require resetting
once the selector switch is set to either the
Position (i) or Position (ii).
Position (i)
(Central Heating or Hot Water)
Position (ii)
(Hot Water)
Fig. 6
Fig. 7
OFF Position
Fig. 5
Fig. 4
Fig. 3
1. On/Off/Reset Selector Switch
2. Burner On Neon
3. Power On Neon
4. Flame Failure Neon
5. Central Heating Temperature Control
6. Hot Water Temperature Control
7. Central Heating System Pressure Gauge
8. Optional Integral Timer Position
12 34 5 6 7 8
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