7
Before installation
Safe operation requires that the low air
pressure in the room in which the fireplace
is located does not exceed 4 Pa (0.04
mbar).
This low air pressure can be obtained,
provided combustion air can escape
through non-lockable openings, e.g. in
doors, windows, air-intake/exhaust-air wall
boxes or by other technical procedures,
such as reciprocal interlocking, etc.
Note: When assessing the air pressure, the
entire ventilation system in the house/apart-
ment must be taken into account. If using
cooking appliances, e.g. hob and/or gas
cooker, this rule does not apply.
Government regulations must be observed
for the conveyance of exhaust air.
If the extractor hood is used in circulating-
air mode – with activated carbon filter –,
there are no operating restrictions.
If the exhaust air is conveyed through
the exterior wall,
a telescopic wall box
should be used. Fig. 7.
Connection options between the
extractor hood and telescopic wall box:
❑
Exhaust-air hose or exhaust-air pipe.
❑
Direct connection.
Optimum performance of the extractor
hood:
❑
Short, smooth exhaust-air pipe.
❑
Minimum number of pipe bends.
❑
Largest possible pipe diameter
(100 mm dia. recommended) and large
pipe bends.
❑
Round pipes:
Short discharge pipe:
Inner diameter
at least 100 mm,
❑
Flat ducts
must have an
inner cross-
section equivalent
to round pipes with
an inner diameter of 100 mm.
100 m dia approx.
1
78 cm
2
❑
If pipe diameters differ:
Insert sealing strip.
❑
Ensure an adequate air supply
for
exhaust-air mode
.
Exhaust air upwards:
Pipe diameter: 100 mm
❑
Take care that the air-deflector is fitted
(Fig.8/1).
❑
Insert the exhaust-air connection
(Fig.8/2)
56080 Int 10-01-2003 11:00 Pagina 7
Summary of Contents for LU13 series
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