… Safety precautions
8
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If other appliances – fuelled by gas or other fuels – are being used at the
same time, ensure that there is a sufficient supply of fresh air. This does
not apply to air recirculation appliances.
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If other firing systems are being used at the same time (e.g. wood, gas, oil
or coal-fired heating appliances), safe operation is only possible providing
a room negative pressure of 4 Pa (0.04 mbar) is not exceeded at the loca-
tion of the appliance. Risk of toxic fumes! An adequate flow of fresh air
must be guaranteed e.g. via non-closable openings in doors or windows
and in combination with an air-intake/exhaust-air wall box or by other tech-
nical means.
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When carrying out maintenance work on the appliance, including replacing
the light bulb, cut off the electricity supply to the appliance (remove the
screw fuse from the holder or switch the circuit breaker off, or disconnect
from the mains supply).
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When cleaning the appliance make sure no water gets inside the appli-
ance. Use a moderately damp cloth. Do not spray the inside or outside of
the appliance with water. Do not use a steam cleaner. If water gets inside
the appliance, it can cause damage.
