Nibe SMS 40 Manuel Installateur page 15

Control module SMO 40
SMS 40 is connected to the input board (AA3) on SMO
40.
Use cable type LiYY, EKKX or similar.
1 2 3 4
L N 1 1 0 PE 2 3 4
AA3-X4
LEK
Several accessories with SMS 40
If SMS 40 is to be connected together with MODBUS 40,
MODBUS 40 must be the first unit connected to the
Tillbehör_singular = translation hint, 2 =
heat pump/indoor module terminal block.
value
Connection to and from SMS 40/MODBUS 40 occurs
in terminal block AA9:X1.
No more than two units can be connected to the heat
pump/indoor module.
Tillbehör_singular = translation hint, 1&2 =
value
MODBUS 40/
Accessory 2
SMS 40
Accessory 1
SMS 40
GND
B
A
+12V
Accessory 2
SMS 40
GND
B
A
+12V
AA3-X4
7 8 9 10 11 12
SMO40
SMS 40
AA9-X1
12V A B GND
Heat pump/
Indoor module
Heat pump/Indoor module
GB
15