3. Mounting and installation
16
3.4
Supply of combustion air
The appliance must have enough outside air to ensure
problem free ignition. If lower values are established based
on the calculated volume of combustion air, building in the
appliance is for the risk of the installer.
The Heat Pure has a built-in air supply valve; in normal situations no
extra air valve is required. In situations where the side gable is subjected
to frequent high winds or where there are large indoor/outdoor pressure
differences, it is advisable to mount an extra air valve.
In that case the valve must be clearly marked to indicate the open and
closed position. Inform the users about the function and working of the
valve(s).
Some air valve manufacturers use plastic sleeves. Mount
these outside the heat radiation range of the Heat Pure.
Ensure that the fresh air actually is outside air. For example,
if the combustion air originates from a cellar, this cellar must
have sufficient air vents to ensure that any extracted air is
replaced by fresh, outside air.
Ensure that the gratings are placed so
,
that they cannot
become blocked.
