Nibe S Series - Sensor and External Adjustment Connections

CONNECTING TO CONTROL MODULE
ERS 20 contains an accessory board (AA5) that connects
directly to the control module on its accessory board (ter-
minal block AA5-X4).
The communication cable (W102) is connected to the access-
ory board (AA5) from the factory.
If several accessories are to be connected, or are already
installed, the boards are connected in series.
Because there can be different connections for accessories
with accessory board (AA5), you should always read the in-
structions in the manual for the accessory that is to be in-
stalled.
1
2
3
4
5
6
7
8
AA5-X4
4
A
B
GND
A
B
GND
A
B
GND
A
B
GND
A
B
GND
5
6
AA5-X4
1
2
3
4
5
6
7
8
AA5-X4
SMO 40
AA5-X4
AA5-X4
AA25
AA5-X4
L N 1 1 0 2 3 4PE
1 2 3 4
LEK
ON
1 2 3 4 5 6 7 8
-X9
-X2
24
20
21
22
23
15
16
17
18
19
10
11
12
13
14
5
6
7
8
9
1
1
NL
PEPE
12345678
2 3 4
5 6 7
8 9
2
3
4
-X8
-X4
-X10
-X1
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
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
DIP SWITCH
The DIP switch (S2) on the accessory board (AA5) must be
set as follows.
You can have up to 8 ERS 20 in the same installation, each
ERS 20 is given a unique setting.
ON
1 2 3 4 5 6 7 8
ERS 20 no. 2
ON
1 2 3 4 5 6 7 8
ERS 20 no. 1
ON
1 2 3 4 5 6 7 8
ERS 20 no. 4
ON
1 2 3 4 5 6 7 8
ERS 20 no. 3
ON
1 2 3 4 5 6 7 8
ERS 20 no. 6
ON
1 2 3 4 5 6 7 8
ERS 20 no. 5
ON
1 2 3 4 5 6 7 8
ERS 20 no. 8
ON
1 2 3 4 5 6 7 8
ERS 20 no. 7
33Chapter 15 | Electrical connectionNIBE ERS 20-300
F