Nibe RMU S40 Installateurhandbuch Seite 21

CONNECTING COMMUNICATION
CONNECTING TO HEAT PUMP OR INDOOR
MODULE
RMU S40 contains a terminal block (AA4-X1) that connects
directly to the main product's base board (terminal block
AA2-X30).
If several accessories are to be connected, or are already
installed, the boards are connected in series.
Heat pump, indoor module
AA2-X30
1 2 3 4
RMU S40
AA4-X1
4
GND
3 B
2 A
1 +12V
RMU S40
AA4-X1
4
GND
B
3
2 A
1 +12V
RMU S40
AA4-X1
4
GND
B
3
2 A
1 +12V
AA4-X5
USB
RMU S40 | EN
CONNECTING TO CONTROL MODULE
The terminal block in RMU S40 (AA4-X1) is connected to
terminal block X9:7–10 on the joint board (AA100) in the
control module.
If several accessories are to be connected, or are already
installed, the boards are connected in series.
Control module
AA100-X9
7 +12V
A
8
9 B
10
GND
RMU S40
AA4-X1
4
GND
3 B
2 A
1 +12V
RMU S40
AA4-X1
4
GND
3 B
2 A
1 +12V
RMU S40
AA4-X1
4
GND
3 B
2 A
1 +12V
AA4-X5
USB
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