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EFFICIENT HEATING SYSTEM OPERATION
The boiler is a high efficiency, condensing appliance which
will automatically adjust its output to match the demand for
heat. Therefore gas consumption is reduced as the heat
demand is reduced.
The boiler condenses water from the flue gases when operating
most efficiently. To operate your boiler efficiently (using less
gas) turn the central heating temperature knob (B) to the '
' position or lower. In winter periods it may be necessary
to turn the knob towards the 'max' position to meet heating
requirements. This will depend on the house and radiators
used.
Reducing the room thermostat setting by 1ºC can reduce gas
consumption by up to 10%.
WEATHER COMPENSATION
When the Weather Compensation Kit (supplied as standard) is
fitted to the system then the central heating temperature knob
(B) becomes a method of controlling room temperature. Turn
the knob clockwise to increase room temperature and anti-
clockwise to decrease room temperature. Once the desired
setting has been achieved, leave the knob in this position
and the system will automatically achieve the desired room
temperature for all outside weather conditions.
BOILER FROST PROTECTION
The boiler is fitted with frost protection that operates in all
modes, provided the power supply to the boiler is always
turned on. If the water in the boiler falls below 5ºC, the frost
protection will activate and run the boiler to avoid freezing.
The process does not guarantee that all other parts of the
system will be protected.
If a system frost thermostat has been installed, the boiler
must be set in winter mode, '
protection to run.
If no system frost protection is provided and frost is likely
during a short absence from home it is recommended to leave
the system heating controls or built in programmer (if fitted)
switched on and run at a reduced temperature setting. For
longer periods, the entire system should be drained.
BOILER RESTART
To restart the boiler, when directed in the listed fault messages
(see section 9), press "Restart". The boiler will repeat its
ignition sequence. If the boiler still fails to start consult a
Gas Safe Registered Engineer or in IE a Registered Gas
Installer (RGII).
MAINS POWER OFF
To remove all power to the boiler the mains power switch
must be turned off.
6
', for the system frost
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