Control Circuit Board; Jumper Settings (Jumpers On The Control Circuit Board) - Maico aeronom WR 300 Instructions De Montage Et Mode D'emploi

9.6.2 Control circuit board

The ventilation unit's control circuit board is
already cabled for standard connections.
Standard jumper settings have also been
done (see wiring diagram in the appendix).
It is necessary to pull the control circuit board
out of the ventilation unit and modify the
jumper settings for different connection
options. Proceed as follows:
 Switch the main fuse off. Position a visible
warning notice to avoid the unit being
accidentally switched back on.
 Loosen both quick-release clips and open
the front shutter downwards. Remove the
6 screws that hold the front cover in place.
Remove the front cover.
 Pull the control circuit board carefully out of
the ventilation unit.
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 Connect the cables in compliance with one
of the connection options in Chapter 9.6.5.
 Modify the jumper settings if required. See
Chapter 9.6.3 and 9.6.4.
 Push the control circuit board back in.
 Reinstall the front cover and close and lock
the front shutter.
 Switch the mains fuse on and remove the
warning notice.
9.6.3 Jumper settings
(jumpers on the control circuit board)
WR 300 Factory setting
Jumper
Factory setting WR 300
1...3
see Chapter 10.3:
Jumper 1 and 2 open,
Jumper 3 bridged (see figure.)
WR 400:
Jumper 1 and 3 open,
Jumper 2 bridged
Extended setting range:
Jumper 1 bridged,
Jumper 2 + 3 open.
Jumper 4 See Chapter 9.6.4,
and 5 frost protection temperatures.
Jumper 6 No function
Jumper 7 Reset ventilation level 3:
Jumper 7 open: Ventilation
level 3 is reset after an hour.
Jumper 7 bridged:
Ventilation level 3 is not reset.