Installation manual
M-WRG-II M-U
2
- 31 -
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
► Insert the sections of flat ductwork into the wall channel one after another and seal
every join with sealing tape.
► Fix the flat ductwork in place with expanding foam. This will improve both the seal and
the insulation.
8.11
Cutting flexible pipes to length
►
Remove the red protective cover
(item 1 in Fig. 28) from the flexible
pipe connection (item 3 in Fig. 28).
► Shorten the flexible pipes (item 2
in Fig. 28) so that the flexible pipe
connection (item 3 in Fig. 28) with the
flexible pipes inserted can be pushed
into the opening on the wall box.
8.12
Inserting flexible pipes into the
flexible pipe connection
► Insert the sealing rings (item 1 in
Fig. 29) into the second groove on
the flexible pipe. These are available
as accessories M-WRG-FR-DR75
(part no. 5056-41/75) or
M-WRG-FR-DR63 (part no. 5056-
41/63) for the corresponding diame
-
ters.
► Insert the flexible pipes into the
openings in the flexible pipe connec
-
tion. Make sure that the first groove
on the flexible pipe (item 2 in Fig. 29)
engages with the locking ring (item 3
in Fig. 29) on the flexible pipe
connection.
►
Recommendation: Seal the join with
a layer of sealing tape 30 mm wide
(item 4 in Fig. 29).
► Insert the flexible pipe connection
(item 5 in Fig. 29) into the opening in the wall box.
NOTICE
► Run the flexible pipes without forcing or stresses.
► Fix the flexible pipes in place with expanding foam.
Fig. 28:
Cutting flexible pipes to length
1
2
3
Fig. 29:
Fixing a flexible pipe connection with sealing
tape
1
2
3
4
5