3
Publication No. 5116283
Operating the Boiler
The Central Heating and Hot Water you need will be
available when the gas and electricity supplies to the
boiler are turned on with the timer and other heating
controls in your system set correctly.
Other heating controls are items such as
room thermostats, cylinder thermostats and
thermostatic radiator valves. To give the most
energy efficient performance these controls
can switch your boiler on and off even when
your timer is on. Instructions on how to use
your programmer and other heating controls
should have been supplied with the items.
Baxi Potterton also produce a guide ‘How to
get the best out of your NEW Central Heating
System’. Telephone our Literature Hotline on
08706 060 623
to request your free copy.
1. Ensure that the electricity and gas supplies are
turned on. Check that the central heating pressure is
at least 0.5 bar (Fig. 1).
2. Turn the On/Off/Reset selector switch either anti-
clockwise from the OFF position (Fig. 3) to both
central heating and domestic hot water or clockwise
to domestic hot water only.
3. In either position the display will illuminate showing
the current boiler temperature in degrees centigrade
(Fig. 2).
4.
Position (i) Heating and Hot Water
(Fig. 4) In
this position the central heating will operate on
demand from the integral timer, room thermostat etc
or domestic hot water will be provided when a tap or
shower is turned on. Priority is given to domestic hot
water. The central heating indicator ( ) will
illuminate when the boiler is supplying central
heating. If there is a demand for domestic hot water
the ( ) indicator will illuminate and the central
heating indicator ( ) will extinguish (Fig. 2). As
the temperature rises the display will change,
showing the current boiler output temperature.
5.
Position (ii) Hot Water Only
(Fig. 5) In this
position only hot water will be provided when a tap or
shower is turned on - Central Heating will not
operate. The hot water indicator ( ) will illuminate
(Fig. 2).
6. The boiler will light automatically on demand.
7. The burner on indicator ( ) will illuminate when
the boiler is operating and the main burner has lit
(Fig. 2).
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 will require resetting once the
selector switch is set to either Position (i) or
Position (ii).
2
1
0
4
3
bar
Reset
1
2
3
4
5
P
M
7
8
9
10
11
12
1
2
3
4
5
AM
7
8
9
10
11
12
GRASSLIN
0
Reset
Reset
Position (ii)
(Hot Water)
Fig. 4
Fig. 5
Reset
OFF Position
Fig. 3
Fig. 1
2
1
0
4
3
bar
Central Heating
System Pressure
Gauge
Position (i)
(Central Heating or Hot Water)
On/Off/Reset
Selector Switch
Fig. 2
Central Heating
Temperature Control
Domestic Hot Water
Temperature Control
Central Heating
Indicator
Domestic Hot
Water Indicator
Burner On
Indicator
Current Boiler
Output
Temperature
Display
Timer
