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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
9.4
Inserting and fixing the wall box
► Remove the plaster cover (item 1 in Fig. 20) and the cardboard insert (item 2 in
Fig. 20) from the wall box (item 3 in Fig. 20).
► Apply assembly adhesive to the top of the lower batten (item 4 in Fig. 20) and the
underside of the upper batten (item 5 in Fig. 20).
Fig. 20:
Inserting and fixing the wall box
1
3
4
2
5
6
7
Fig. 21: Depth of plastering trim 15 mm
15 mm
1
2
3
4
5
6
► Thread the mains cable and the control cable, if required (item 6 in Fig. 20), through
the cable inlet in the wall box (item 7 in Fig. 20).
►
Insert the wall box between the two battens. The structure of the subsequent internal
wall cladding will determine how far the wall box needs to protrude above the batten.
This installation example shows the following configuration:
—
The internal wall cladding consists of a 15 mm thick OSB board (item 1 in Fig. 21)
and a 12.5 mm thick plasterboard (item 2 in Fig. 21).
—
The front surface of the wall box (item 3 in Fig. 21) protrudes 15 mm above the
two battens (item 4 in Fig. 21). In this case, the OSB board ends flush with the
front surface of the wall box.
—
The 15 mm gap (item 5 in Fig. 21) between the front surface of the wall box and
the ventilation unit housing (item 6 in Fig. 21) is filled by the 12.5 mm thick plaster
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board. The remaining 2.5 mm shadow gap can be grouted.
