Installation Manual
M-WRG-M/MB-FR75/1 / FR75/2 / FR63/1 / FR63/2
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V E N T I L AT I O N & H E AT R E C O V E R Y
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
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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 outgoing air line. 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.
3
Planning notes
3.1
General planning notes
When planning, please read the following notes on selecting the location of the ventilation unit:
—
The installation kits 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 supply and exhaust
air pipes (M-WRG-LR 100, part no. 5580).
—
The ventilation unit must be installed indoors on an external wall.
—
For a standard room height of 2.50 m, the best effect for air exchange is achieved if the
supply and exhaust air openings are roughly 30 cm (top edge of the unit) below the ceiling
(exception: exhaust air opening in the ceiling if the 2-room solution is used).
► Maintain the following minimum distances:
— For this installation kit, the distance between the top edge of the wall box and the
ceiling must be at least 30 cm, otherwise there will not be enough space for con-
necting the flexible pipes.
— The distance between the side edge of the unit and adjacent surfaces should be at
least 5 cm. The ventilation unit will be easier to operate if this minimum distance is
maintained. It also allows the filter to be replaced without obstruction.
► In taller rooms, position the ventilation unit so that an operator can still reach the control
panel unaided (without steps, ladders, etc.). Alternatively order a type of ventilation unit
that is not controlled from the unit itself.
—
The ventilation unit must always be freely accessible for operation and maintenance.
► Make sure that the ventilation unit is not blocked, obstructed or covered when the room
is subsequently decorated and furnished, otherwise it cannot be operated and it will not
be possible to replace the filter.
► Make sure that the supply and exhaust air openings are not blocked, obstructed or cov-
ered when the room is subsequently decorated and furnished.
