Electrical Connection - Nibe OEK 20-160 Manuel D'installation

Electrical connection

NOTE
All electrical connections must be carried out
by an authorised electrician.
Electrical installation and wiring must be car-
ried out in accordance with the stipulations
in force.
The heat pump must not be powered when
installing OEK 20-160.
The electrical circuit diagram is at the end of this In-
staller handbook.
Connecting communication
This accessory contains an accessory board (AA5) that
must be connected directly to the heat pump on the
input board (terminal block AA3-X4).
If several accessories are to be connected or are already
installed, the following instructions must be followed.
The first accessory board must be connected directly
to the heat pump's terminal block AA3-X4. The follow-
ing boards must be connected in series to the previous
board.
Use cable type LiYY, EKKX or similar.
Heat pump
(AA3-X4)
A
B
GND
OEK 20-160 | GB
Another access-
ory board (AA5-
X4)
15 4
14 5
13 6
EB100
AA3-X4
A
15
B
14
GND
13
Accessory card 1
AA5-X4
A
1
B
2
GND
3
A
4
B
5
GND
6
7
8
Accessory card 2
AA5-X4
A
1
B
2
GND
3
A
4
B
5
GND
6
7
8
Connecting the supply
Connect the power supply to terminal block X1 as illus-
trated.
Accessory box External
-X1 230V 50Hz
1
2
3
AA3-X4
F730
24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9
-X8
-X2
AA5-X4 -X4
1
2
3
4
5
6
7
8
24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9
-X8
-X2
AA5-X4 -X4
1
2
3
4
5
6
7
8
N
L
PE
-X9
9
8 7 6 5 4 3 2 1
8
7
6
5
4
3
2
1
-X10
-X1
N
L
PE
PE
-X9
9
8 7 6 5 4 3 2 1
8
7
6
5
4
3
2
1
-X10
-X1
N
L
PE
PE
13