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2.4.2. ROOM AIR SEALED OPERATION (RLU)
Your ambiente a1/a2/a3/a4/a4 H
2
O RLU stove does not draw the air it needs
for combustion from the room where it is installed (room air sealed oper-
ation). Combustion air intakes and pipes must not be obstructed or closed
unless special safety devices are fitted to ensure that the stove can only
be operated when the closing system is open. The cross-section must not
be reduced by means of an obstructor or grille. According to EnEV, the
combustion air pipe should be fitted with a shut-off device. The position of
the shut-off device must be obvious from the outside of the connecting pipe.
This measure is not necessary with balanced flue systems. The combustion
air intake pipe should be insulated to prevent moisture from the ambient
air from condensing on the pipe. Also, when fitting the pipe it should be
ensured that no water or other substances can enter the ambiente a1/a2/
a3/a4/a4 H
2
O RLU stove and that any condensate can drain away outside.
According to the relevant provisions, combustion air ducts that bridge
firewalls in buildings with more than two full storeys must be constructed
such that fire and smoke cannot spread to other storeys or fire lobbies.
The national and local fire precautions for the place of installation must be
observed. Please ensure that the pipework is always leaktight.
2.4.3. SEPARATE COMBUSTION AIR SUPPLY
It is possible to provide the stove with a separate combustion air supply. The
separate combustion air connection is located at the rear of the unit and in
the lower compartment (D = 100 mm) at the sides. The connecting piece
is ready-assembled. The stove covering can be opened up for the purpose
(unscrew the cover cap) and the connecting piece can be screwed on. If a
pipe connection is attached to the combustion air coupling, the combustion
air is drawn into the stove from outside or from other rooms such as the
basement. When connecting up the stove to a combustion air pipe, the
requirements of TR-OL (technical rules), DIN 18896, etc. must be observed
and applied.
In particular, sufficient dimensioning of the pipes must
be ensured.
If using a swivel connector, a permanently flexible connection must
be made. The rotating action must not be restricted.
Combustion air intakes and pipes must not be obstructed or closed unless
special safety devices are fitted to ensure that the stove can only be
operated when the closing system is open. The cross-section must
not
be reduced by means of an obstructor or grille. If the combustion air pipe
has to be routed out of the building, a shut-off device must be fitted. The
shut-off device must be identifiable from outside. In the case of an external
connection the pipe should be insulated, as condensate may form. Also,
when fitting the pipe it should be ensured that no water or other substances
can enter the stove and that any condensate can drain away outside. Please
note that room air sealed operation of the stove is
not
possible with a sepa-
rate combustion air supply. That means that appropriate safety precautions
must be taken if operating an extractor fan or cooker hood when the stove
is in use.
According to the relevant provisions, combustion air ducts that bridge
firewalls in buildings with more than two full storeys must be constructed
such that fire and smoke cannot spread to other storeys or fire lobbies.
The national and local fire precautions for the place of installation must be
observed.
