Northline Express EXHAUSTO RS 12, Руководство по применению

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Uses for the chimney fan.
The EXHAUSTO Chimney Fan is designed to cope
with the majority of draft problems, whether these are
related to the chimney design, the fireplace design, the
building design or weather and wind.
The EXHAUSTO chimney Fan can be installed on
brick chimneys - lined or un-lined - as well as steel
chimneys, whether single, double or triple walls or
insulated.
While the chimney fan will make most systems work
and solve draft and smoke problems, it must be
emphasized that the chimney fan does not correct a
problem. For example, it will not "repair" a crack
(cracks should always be repaired) in the flue tile, or
enlarge an under-sized flue.
What the chimney fan is doing is making impossible
situations possible. To use above examples, it will
assure air is pulled into the flue instead of flue gases
going out through the cracks, and it will enable the use
of an undersized flue by creating mechanical draft to
overcome the resistance.
Typical Applications.
These are typical applications where chimney fans
could be used:
n
Chimney is too low.
The chimney fan will make up for the insufficient
draft which is a result of a chimney that is too short.
n
Chimney is too high.
The chimney fan will create the necessary draft
caused by insufficient flue gas temperature (less draft)
or excessive height (increased resistance).
n
Flue is too small.
The chimney fan will create additional draft to
overcome the added restriction caused by a flue that is
too small.
n
Flue has been relined.
It is comparable to the situation where the flue is too
small.
n
The flue is too large.
The chimney fan will create additional flow in the
chimney to make up for the insufficient draft caused by
insufficient flue gas temperature.
EXHAUSTO
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PPLICATIONS FOR THE
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n
Stack effects.
Due to the existence of mechanical draft, the re-
verse draft/flow in the chimney is prevented. Even cold
starts will now be possible.
n
Downdraft/backdraft situations.
These problems are normally caused by the loca-
tion of the building and chimney, trees around the
building etc. The chimney fan will prevent the problems
to occur because the draft it can create, is a lot more
powerful than the natural draft. Since the fan is installed
on the top of the chimney, the fan also prevents
backdraft caused by eddies (turbulence).
n
Depressurization.
In most cases, the chimney fan can easily over-
come the negative pressure in a building that causes
the fireplace to backdraft. It is important to remember,
however, to make sure that a furnace or a water heater
installed in the same building, still works properly after
the chimney fan is installed. Installation of spill switches
on these appliances is highly recommended.
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