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Installation manual
M-WRG-II M
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
V E N T I L A T I O N & H E A T R E C O V E R Y
3
Planning notes
3.1
Requirements for the installation wall
The installation kit can be installed in frame constructions with walls that are at least
24 cm thick (including internal plaster, external render and insulation).
►
For wall structures that are 63 cm thick or more, you will need 100 cm long outdoor
and exhaust air pipes (M-WRG-LR 100, part no. 5580).
NOTICE
The installation kit fixes the ventilation pipes with a 2° fall to the external wall.
—
The installation kit can be shortened by up to 165 mm (to no less than 200 mm).
Allow the kit to protrude into the external thermal insulation composite system
(ETICS) as this is the only way to allow the ventilation pipes to pass far enough
through and so be fixed in place.
—
When fitting the ETICS, make sure that the ventilation pipes maintain their 2° fall.
3.2
Positioning the ventilation unit indoors
Fig. 4: Minimum distances and options for positioning the M-WRG-II M installation kit,
dimensions in millimetres
min. 50
min. 150
without
ductwork connection
min. 300
with
ductwork connection
min. 50 (*)
(*) If a condensate connection (see section 9.12 on page 36) is used, the minimum dimensions must be
adapted to suit the local conditions. This applies, in particular, if condensate is drained inwards, e.g. via a
greywater outlet.
The ventilation unit must be installed indoors in a perpendicular position on an external
wall.
—
The flush-mount installation (wall box) kit must be installed so that the openings for
extract air and supply air point up.
—
For a standard room height of 2.50 m, the best effect for air exchange is achieved if
the top edge of the unit with the supply and extract air openings is roughly 300 mm
below the ceiling.
—
A 110 x 54 mm flat ductwork system or a 75 or 63 mm flexible pipe system can be
connected using the optional ductwork connection adapter M-WRG-II AD-UP. You will