Electrical Connection - Nibe ECS 40 Installateurhandbuch

Electrical connection

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 climate unit must not be powered when
installing ECS 40/ECS 41.
• To prevent interference, sensor cables to external
connections must not be laid close to high voltage
cables.
• The minimum area of communication and sensor
cables to external connections must be 0,5 mm² up
to 50 m, for example EKKX, LiYY or equivalent.
• ECS 40/ECS 41 must be installed via an isolator
switch. The cable area has to be dimensioned based
on the fuse rating used.
• Mark the relevant electrical cabinet with a warning
about external voltage, in those cases where a com-
ponent in the cabinet has a separate supply.
• ECS 40/ECS 41 restarts after a power failure.
The electrical circuit diagram is at the end of this Installer
handbook.
CABLE LOCK
Use a suitable tool to release/lock cables in terminal
blocks.
3
3
1
1
2
1
4
1
2
3
28
1
2
2
2
4
3
OVERVIEW ACCESSORY BOARD (AA5)
AA5-S2
AA5-X2
24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
-X8
-X2
-X4
1
2
3
4
5
6
7
8
AA5-X4 AA5-X10
CONNECTING COMMUNICATION
CONNECTING TO THE INDOOR MODULE
The accessory board's terminal block AA5-X4:1-3 is
connected directly to the indoor module on the terminal
block AA2-X30:1, 3, 4. Use cable type LiYY, EKKX or
equivalent.
If several accessories are to be connected or are already
installed, the following instructions must be followed.
The first accessory board is connected directly to the
indoor module's terminal block AA2-X30:1, 3, 4. The
following boards are connected in series with the previ-
ous board. Use cable type LiYY, EKKX or equivalent.
S1155/S1255
VVM S320/VVM S325
AA2-X30
1 2 3 4
Accessory 1
AA5-X4
1 A
B
2
GND
3
4 A
B
5
6 GND
7
8
Accessory 2
AA5-X4
1 A
B
2
3 GND
A
4
5 B
6 GND
7
8
The terminal block (AA2-X30) is upright on S1155.
AA5-X9
-X9
9
9 8 7 6 5 4 3 2 1
8
7
6
5
4
3
2
1
-X10
-X1
N
L
PE
PE
AA5-X1
ECS 40/ECS 41 | GB