11 Cleaning and Servicing your Boiler
The boiler MUST be serviced either ANNUALLY or when a service is indicated on the burner control panel display, whichever comes
FIRST. Refer to Section 5.
Servicing should only be carried out by a Grant trained installer or Grant service engineer, and details of each service should be
recorded in the Service Log in Section 17 of these User Instructions.
CAUTION
Failure to regularly service the boiler will invalidate the terms of the Grant product guarantee.
Failure to maintain a clean flue may result in the release of flue gases into the dwelling or damage from potential fire in the flue. It is
therefore essential that your flue is inspected annually and cleaned as necessary by either a Grant trained installer or a suitably qualified
chimney sweep.
12 Ventilation
As an ‘open flued’ appliance, your Grant Spira boiler draws the air it requires for combustion from the room in which it is located. In turn,
this air comes from outside via a permanently open air vent (or vents) correctly sized to meet the air requirements of your boiler.
WARNING
Any permanently open combustion air vents in the room containing the boiler MUST NOT be blocked off or obstructed in
any way. Do not attempt to ‘box in’ the boiler, or build a compartment around it, without contacting your installer first for
guidance.
Do NOT place any combustible material against, around or on the boiler or flue pipe.
Current Building Regulations require that a Carbon Monoxide alarm (conforming to BS EN 50291:2001) must be fitted in the room
where the boiler is located.
This should be positioned between 1 and 3metres horizontally from the boiler either:
a) On the ceiling, at least 300mm from any wall
or
b) On a wall as high up as possible (above any windows or doors) at least 150mm from the ceiling.
13 Electricity Supply
If the electricity supply fails, the boiler will cease to operate. It should automatically relight when the electrical supply is restored.
However, it may first burn off any smouldering pellets still present in the brazier before starting the lighting sequence again.
If a remote programmer is connected to your boiler, it may have a ‘battery back-up’ of some kind that will retain the on/off time settings
you previously entered. It may also resume operation with the correct time of day and thus require no re-setting of time and on/off
settings when the supply is restored. Refer to the instructions supplied with your programmer for further details. It is recommended that
you check that the on/off and time settings after a power failure has occurred.
WARNING
The electricity connections to the boiler must be earthed.
14 Sealed Heating System
If your boiler is operating on a sealed heating system, the installer will have adjusted the pressure in the system and should have told
you (or set it on the pressure gauge) the system pressure when cold. This is normally between 0.5 and 1.0 bar, which will increase
slightly when hot. If the pressure (when cold) is below the set pressure mentioned above, you can re-pressurize the system. If this is
frequently required, ask your Installer or service engineer to check the heating system for leaks and to check the expansion vessel air
charge.
The boiler or system will be fitted with an automatic air vent to remove any air from the system. Any trapped air in the radiators should
be removed by venting the radiators using the vent screw at the top of each radiator. 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.
Re-pressurise the system as necessary.
The sealed system is fitted with a safety valve to release excess pressure from the system. If water or steam is emitted from the end of
the safety valve discharge pipe, switch off the boiler and contact your Installer for assistance.
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