Installation
3.4.5
Connect accessories
Depending on the installation situation, accessories may be
connected to the hood:
y Wall box
y Window contact switch
y Under-pressure monitor
Observe the instructions for the accessories.
12 V DC
G
E
D
H
12 V DC
1
2
3
B
BMK-F
F-K
A
ST3
–
+
–
+
A Control box
y BMK1: Wall sleeve contact, optocoupler collector,
max. 12 mA / 12 V DC, safe galvanic separated
y BMK2: Wall sleeve contact, optocoupler emitter,
max. 12 mA / 12 V DC, safe galvanic separated
B Terminal "BMK-F" for the wall box connection
C Terminal "F-K" (multifunction contact) for the window
contact switch or under-pressure monitor connection
D Control line from the wall box
E Wall box
F Wall box power unit
G Window contact switch
H Control line from the window contact switch
100
F
4
5
6
7
8
I
C
Connection is implemented via cable terminals on a
detachable connector on the fan housing.
D ATTENTION!
Risk of damage through incorrect connection!
A mix-up of the control wires can result in damage to the
electronics.
☞ Be careful not to mix up connections when connecting
the control wires: Core 1 on terminal 1, core 2 on
terminal 2.
9
Wall box
☞ Connect the wall box as follows:
y Core 1 on terminal 1
y Core 2 on terminal 2
y The wall box is closed when the control contacts are
open.
y The wall box is open when the control contacts are
closed.
Window contact switch
☞ Connect the window contact switch as follows:
y Blue/white core to terminal 3
y Brown/green core to terminal 4
y The hood's fan is only operational when the window is
open.
Under-pressure monitor
y The hood's fan is only operational when no critical under-
pressure is determined in the room.
2.
1.
1.
6003417_a – 26.09.2017