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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
9.16
Preparing the wall box for connecting the ventilation pipes
Fig. 26:
Wall box plastered on the inside
Fig. 27:
Wall box plastered on the outside
—
Work on the internal wall:
►
Remove the signal cover (item 1 in Fig. 26).
►
Use a blade to score the plaster on the inside of the plastering trim (item 2 in Fig. 26).
►
Carefully remove the plaster cover (item 3 in Fig. 26).
►
Remove the protective cover over the supply air duct (item 4 in Fig. 26) and / or extract
air duct (item 5 in Fig. 26).
—
Work on the external wall:
►
Remove the two protective sleeves (item 1 in Fig. 27).
9.17
Cutting ventilation pipes to length
►
Push the two ventilation pipes (item 1 in
Fig. 28) into the openings in the wall box
until they end flush (item 2 in Fig. 28).
►
On the outer wall, mark the excess length
of the ventilation pipes to suit the outer wall
terminal, see Tab. 3 on page 25.
Fig. 28:
Cutting ventilation pipes to length
