Nibe SCA 30 - Electrical Connections; Power Supply Connection; Communication Connection

Electrical connections
NOTE
All electrical connections must be carried out by
an authorised electrician.
Electrical installation and wiring must be carried
out in accordance with the stipulations in force.
The indoor module must not be powered when
installing SCA 30.
The electrical circuit diagram is at the end of this Installer
handbook.
Connecting the supply
Connect the power supply to terminal block X1 as illus-
trated.
3
2
1
N
230V 50Hz-X1
L
PE
8QLW ER[ ([WHUQDO
Connecting communication
This accessory contains an accessory card (AA5) that must
be connected directly to the indoor module on the input
card (terminal block AA3-X4).
If several accessories are to be connected or are already
installed, the following instructions must be followed.
The first accessory card must be connected directly to the
indoor module's terminal block AA3-X4. The following
cards must be connected in series with the previous card.
Use cable type LiYY, EKKX or similar.
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
990 
$FFHVVRU\ FDUG 
$FFHVVRU\ FDUG 
ON
12345678
-X9
-X2
24 20212223 1516171819 1011121314 567891
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
$$;
ON
12345678
-X9
-X2
24 20212223 1516171819 1011121314 567891
1
N
L
PE
PE
1
2
3
4
5
6
7
8
2
3
4
5
6
7
8
9
234
-X8
-X4
-X10
-X1
$$;
(%
APH
VVM 500
$$;
15
GB