Nibe S Series - Electrical Connection and Mounting

CONNECTING TO CONTROL MODULE
ERS 20 contains an accessory board (AA5) that connects
directly to the control module on its joint board (terminal
block AA100-X9).
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.
+12V
GND
B
A
AA100-X9
7
8
9
10
11
12
AA5-X4
1
2
3
4
5
6
7
8
A
B
GND
A
B
GND
AA5-X4
1
2
3
4
5
6
7
8
A
B
GND
A
B
GND
Accessory 1
Accessory 2
Control module
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
13Chapter 5 | Electrical connectionNIBE ERS 20-300
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