ON/OFF/Reset
Selector Switch
Display Central Heating
Temperature Control
Calibration Control System Pressure Gauge
OFF Position
The boiler will not operate.
Central Heating Temperature Control
Turn the knob clockwise to increase or anticlockwise to decrease the temperature.
Range 25 - 80° C.
Central Heating & Hot Water Indicator - The indicator will illuminate when the boiler is in
the central heating/hot water mode.
Burner On Indicator - The indicator will illuminate when the burner has fired and is heating
your central heating or domestic hot water.
Boiler Output Temperature - In either the central heating or domestic hot water position
the display will illuminate showing the current boiler temperature in degrees centigrade.
Central Heating System Pressure - The normal operating water pressure is between 1 and
2.0 bar. If the pressure exceeds 3 bar the safety pressure valve will operate and a fault is
indicated. Contact your Installer.
Central Heating & Hot Water
Both Heating & Hot Water will operate.
Reset
Hold for approx 5 seconds and release.
Display
Calibration Control
This control is for use only by the installer or service engineer.
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