Nibe OEK 20-160 - Electrical Connection; Connecting Communication; Connecting the Supply

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.
Another access-
ory board (AA5-
X4)
Heat pump
(AA3-X4)
415A
514B
613GND
1
2
3
4
5
6
7
8
AA5-X4
15
A
B
GND
A
B
GND
A
B
GND
A
B
GND
A
B
GND
14
13
AA3-X4
1
2
3
4
5
6
7
8
AA5-X4
Accessory card 1
Accessory card 2
ON
1 2 3 4 5 6 7 8
-X9
-X2
24 20212223 1516171819 1011121314 56789 1
1
N
L
PE
PE
1
2
3
4
5
6
7
8
2
3
4
5
6
7
8
9
234
-X8
-X4
-X10
-X1
AA5-X4
ON
1 2 3 4 5 6 7 8
-X9
-X2
24 20212223 1516171819 1011121314 56789 1
1
N
L
PE
PE
1
2
3
4
5
6
7
8
2
3
4
5
6
7
8
9
234
-X8
-X4
-X10
-X1
AA5-X4
EB100
AA3-X4
F730
Connecting the supply
Connect the power supply to terminal block X1 as illus-
trated.
3
2
1
PE
230V 50Hz-X1
L
N
ExternalAccessory box
13OEK 20-160 | GB