Installation manual
M-WRG-S/Z-S, M-WRG-S/Z-24,
M-WRG-S/Z-EIB, M-WRG-S/Z-KNX (-F, -FC)
- 25 -
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
9.4
Connecting the KNX bus cable to the KNX interface
NOTE
—
The KNX interface ABB US/U 12.2 was connected to the terminal blocks on the board at
the factory.
—
The KNX interface is attached to the network connection cover of the ventilation unit with a
Velcro dot.
—
The KNX interface must be detached from the network connection cover in order to con-
nect it to the KNX bus cable and for programming.
—
The KNX interface must be programmed by the electrician on site.
►
Remove the cover from the ventilation unit
(see section 6.3.1 on page 9).
►
Detach the KNX interface (item 1 in
Fig. 18) from the network connection cov-
er (item 4 in Fig. 18).
►
Connect the KNX bus cable to the KNX
interface, ensuring that the polarity is
correct:
►
Connect the “+” bus wire to the red
terminal (item 2 in Fig. 18).
►
Connect the “-” bus wire to the grey
terminal (item 3 in Fig. 18).
NOTE
The KNX interface will not work if the bus cables
are connected with the wrong polarity.
NOTE
The board with the terminal blocks is located behind the network connection cover (item 4 in
►
Remove the network connection cover if you want to check the wiring between the KNX
interface and the terminals. You will find the terminal assignment for the ventilation unit in
Table 11, Table 12 or Table 13 in section 9.3 from page 23.
Fig. 18: Connecting the KNX bus cable to the KNX
interface
1
3
2
4