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7.2.1 Filling and venting central heating system
7.2 Preparation activities
7.1 Using the control panel
► Connect to 3 amp fused spur.
► Connect the appliance to mains
A 2 may briefly appear on the right display; this means that
the connected sensors are being inspected. Then the boiler
enters the switched-o setting, characterised by a line – on
the right display and the central heating system pressure on
the le display.
7 OPERATION
► When the central heating pressure is
lower than 0.5bar, this will be shown
by a flashing display (if the boiler is
in central heating demand) and the
capacity will be reduced as a signal
function to the resident.
► Below 0.2bar central heating pressure,
central heating demand will no longer be
met.
WARNING
► If an additive is added to the central
heating water, this must be suitable
for the materials used in the boiler,
such as copper, brass, steel, stainless
steel, plastic and rubber. The additive
must preferably have a KIWA-ATA-Atest
certification.
Tapping
Touching and holding for 2 seconds
2sec
Central heating pressure is too low.