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Installation manual
M-WRG-M/MB-FK1 / FK2
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 AT I O N & H E AT R E C O V E R Y
►
You will need to include the mains switch protective cap (M-WRG-SN,
part no. 5430) when you order the ventilation unit.
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Other zone: The unit may be installed in this area.
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Build-up of icicles and ice patches at low temperatures
The heat recovery process in our ventilation units causes condensation. This condensation
is dissipated to the outside via the exhaust air pipe. When external temperatures drop below
0 °C this can cause a build-up of icicles at the outer wall terminals and ice patches on the
ground.
►
You should therefore position the outer wall terminals so as to exclude any possibility of
accidents.
2.3 Intended use
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The ventilation unit is intended for supplying air to and extracting air from living and recrea-
tion rooms (bedrooms, playrooms, living rooms, bathrooms, basement workshops, offices,
consulting rooms, etc.). The ventilation unit is installed in a perpendicular position in the ex-
ternal wall. Any different or more extensive usage will be regarded as contrary to the intend-
ed use.
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The intended use also includes compliance with all the notes in the installation manual.
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For any use contrary to the intended use, Meltem Wärmerückgewinnung GmbH & Co. KG
shall accept no liability for any damage that may occur and offers no warranty that the com-
ponents will work perfectly and correctly.
3
Planning notes
3.1 Requirements for the installation wall
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The installation kit can be installed in solid walls that are at least 17.5 cm thick.
►
For walls that are 60 cm thick or more, you will need 100 cm long outdoor and exhaust
air pipes (M-WRG-LR 100, part no. 5580).
NOTE
The wall box fixes the ventilation pipes with a 2° fall.
► If the unplastered wall is thin (24 cm or less), do not cut off the wall box flush with the
unplastered wall (see section „9.14 Aligning the wall box on the outside before plaster-
ing“ on page 22). Allow the wall box to protrude in the vicinity of the external thermal
insulation composite system (ETICS) as this is the only way to allow the ventilation
pipes to pass far enough through the wall box 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
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The ventilation unit must be installed indoors in a perpendicular position on an external wall.
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The ventilation unit must be installed so that the openings for extract air and supply air point
up.
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For a standard room height of 2.50 m, the best effect for air exchange is achieved if the