Nibe ECS 40 Installateurhandbuch Seite 29

CONNECTING TO CONTROL MODULE
The accessory board's terminal block AA5-X4:1-3 is
connected directly to the indoor module on the terminal
block AA100-X9:8–10. 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 AA100-X9:8–10. The
following boards are connected in series with the previ-
ous board. Use cable type LiYY, EKKX or equivalent.
Because there can be different connections for accessor-
ies with accessory board (AA5), you should always read
the instructions in the manual for the accessory that is
to be installed.
SMO S40
AA100-X9
+12V
7
A
8
9 B
GND
10
11
12
Accessory 1
AA5-X4
1 A
B
2
GND
3
4 A
B
5
6 GND
7
8
Accessory 2
AA5-X4
A
1
2 B
GND
3
4 A
B
5
GND
6
7
8
POWER CONNECTION
Connect the power supply cable to terminal block AA25-
X1 as illustrated.
Tightening torque: 0,5-0,6 Nm.
External ECS 40/ECS 41
Externt ProduktNamn
AA25-X1
L
2
N
1
ECS 40/ECS 41 | GB
CONNECTION OF SENSORS AND EXTERNAL
ADJUSTMENT
Use cable type LiYY, EKKX or similar. For location of
terminal blocks, see Component location, AXC module
(AA25) page 21.
SUPPLY TEMPERATURE SENSOR, EXTRA
CLIMATE SYSTEM (BT2)
Connect the supply temperature sensor to AA5-X2:23-
24.
RETURN LINE SENSOR, EXTRA CLIMATE
SYSTEM (BT3)
Connect the return line sensor to AA5-X2:21-22.
ROOM SENSOR, EXTRA CLIMATE SYSTEM
(BT50) (OPTIONAL)
Connect the room sensor to AA5-X2:19-20.
EXTERNAL ADJUSTMENT (OPTIONAL)
A potential-free switch can be connected to AA5-X2:17-
18 for external adjustment of the climate system.
External adjustment
BT2 BT3 BT50
24 23 22 21 20 19 18
AA5-X2
Caution
The relay outputs on the accessory board can
have a max load of 2 A (230 V) in total.
CONNECTION OF THE CIRCULATION PUMP
(GP20)
Connect the circulation pump (GP20) to AA5-X9:8 (230
V), AA5-X9:7 (N) and X1:3 (PE).
AA25 External
9
L
8
N
7
PE
6
5
4
3
1
2
2
1
3
AA5-X9 X1
17 16 15 14 13
GP20
29