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Ensure that -
There is sufficient fuel in the supply tank and
all fuel supply valves are open, the water supply is on, the
electricity supply to the boiler is off, the Boiler On/Off
switch is set to OFF, the white pointer on the pressure gauge
is not below the red pointer, the room thermostat (if fitted)
is at the desired setting and the timer/programmer (if fitted)
is correctly set.
2 Switch on the electricity supply to the boiler.
3 Set the On/Off switch to ON.
4 The boiler will light automatically to heat the water stored
in the boiler.
If the timer/programmer is set to an 'on' period the boiler
will continue to run to provide central heating. If a hot tap
is opened the boiler will supply hot water.
For short periods -
Set the On/Off switch to OFF. To restart,
simply set the switch to ON.
For long periods:
Set the On/Off switch to OFF and switch off
the electricity supply to the boiler. If required, the fuel supply
valve may be closed and the water and electricity supplies
turned off at the mains.
To restart, refer to the full lighting instructions above.
Note:
The built in frost thermostat will not operate the boiler if
the electricity supply to the boiler is switched off.
1 Check that the boiler On/Off switch is set to ON.
2 Check that the timer/programmer (if fitted) is working and
is in an 'on' period.
3 Check that all thermostats are set to the desired setting and
are calling for heat.
4 Check if the burner 'Lock-out' reset button on the burner is
lit. If it is, press it to start the burner. If the burner fails to
light and goes to 'Lock-out' again, check that you have
sufficient fuel in the storage tank and that the fuel supply
valve is open.
5 Ensure that a fuse has not blown or that the electricity
supply has not failed.
6 Check to see if the overheat thermostat has operated (see
note 4 in Section 3.6).
7 Check that the white pointer on the pressure gauge is not
below the red pointer.
8 If the heating system water pressure falls below 0.2 bar the
boiler low pressure cut-out switch will activate and an
amber neon on the control panel (see Fig. A or B) will light.
The system must be recharged to between 0.5 and 1 bar. If
the heating system loses pressure on a regular basis then
contact your Installer to investigate the cause.
If the burner still fails to light after carrying out these checks
then a fault exists. Switch off the electricity supply to the boiler
and contact your Service engineer.
The boiler will supply domestic hot water whenever a hot tap is
opened, providing the Boiler On/Off switch is set to ON, and
the hot water switch of the programmer (if fitted) is also set to
ON.
The flow of water from the taps (hot or cold) depends upon the
mains water pressure, and in some homes it may not be possible
to use more than one tap at the same time.
The boiler operates on a sealed central heating system which
will have been pressurised by your Installer. He will have set the
red pointer on the pressure gauge (see Fig. A or B), to indicate
the system pressure (when cold) usually between 0.5 and 1.0
bar.
Do not
adjust this pointer. The white pointer indicates the
actual system pressure which will increase slightly when the
boiler is operating. If the white pointer falls below the red
pointer (when the boiler is switched off and cold), you should
contact your Service Engineer to re-pressurise the system. If the
system requires frequent re-pressurising, ask your Service
Engineer to check the heating system for leaks. If the heating
system water pressure falls below 0.2 bar the boiler low
pressure cut-out switch will activate and an amber neon on the
control panel (see Fig. A or B) will light. The system must be
recharged to between 0.5 and 1 bar. If the heating system loses
pressure on a regular basis then contact your Installer to
investigate the cause.
The boiler is fitted with an automatic air vent which removes air
trapped in the boiler. Any air trapped in the radiators needs
removing by venting the radiators using the vent screw at the
top of the radiators. Only vent a radiator if the top is cool and
the bottom is hot. Excessive venting will reduce the system
pressure, so only vent when necessary and check the system
pressure as mentioned above.
3 - OUTDOOR COMBI 90 V3, COMBI MAX & CONDENSING COMBI USER INSTRUCTIONS
Outdoor Combi 90 V3, Combi Max and Condensing Combi
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3.1
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Lighting your boiler (see Fig. A or B)
3.2
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Turning off your boiler (see Fig. A or B
3.4
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Domestic hot water system
3.5
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Sealed central heating system
3.3
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Points to check if burner fails to light
Note:
Your sealed system may incorporate a 'Top up' vessel,
advice on how to use it should be obtained from your
Installer.