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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
3.3
Unrestricted access to the ventilation unit
The ventilation unit must always be freely accessible for operation and maintenance.
►
Make sure that the ventilation unit is not covered or obstructed when the room is
subsequently decorated and furnished, otherwise it cannot be operated and it will not
be possible to replace the air filters. You should therefore maintain a clearance of at
least 15 cm in front of the ventilation unit cover.
►
Make sure that the supply and extract air openings are not covered when the room is
subsequently decorated and furnished, otherwise the ventilation unit’s functions may
be impaired.
3.4
Additional planning notes when connecting a flexible pipe or flat ductwork
system using the ductwork connection adapter M-WRG-II AD-UP
3.4.1
Fire safety and soundproofing
WARNING
Observe the relevant fire safety and soundproofing regulations
► Observe the regulations concerning the fire behaviour of building materials and
components as defined in DIN 4102 (EN 13501).
► Observe the regulations concerning soundproofing in buildings as defined in
DIN 4109, particularly the requirements for insulation against airborne and impact
sound.
►
Observe the building regulations applicable in your country.
3.4.2 Flat ductwork
NOTICE
► Observe the following recommendations when using flat ductwork to avoid unneces
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sary pressure losses in the ducts.
—
Make sure that the cutouts for the flat ductwork do not affect the local static load
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ing and thermal insulation requirements.
— Horizontal runs in the external wall should be as short as possible.
—
The total length of a flat duct should not exceed 6 m, as permitted by the static
calculations.
—
Minimise the number of bends in the flat ductwork.
