GB
Electrical connection
NOTE
All electrical connections must be carried out
by an authorised electrician.
Electrical installation and wiring must be car-
ried out in accordance with the stipulations in
force.
The climate unit must not be powered when
installing SMS 40.
Connecting communication
SMS 40
The electrical circuit diagram is at the end of this In-
staller handbook.
For following connections, use cable type LiYY, EKKX
or similar.
14
AA9-X1
F1145/F1155
Terminal block X1 on the SMS board (AA9) in SMS 40
is connected to terminal block X4:9-12 on the input
board (AA3) in the heat pump.
AA3-X4
F1245/F1255
Terminal block X1 on the SMS board (AA9) in SMS 40
is connected to terminal block X4:9-12 on the input
board (AA3) in the heat pump.
AA3-X4
AA3-X4
7
8
9
10
11
12
Heat pump
SMS 40
AA9-X1
12V A
B GND
AA3-X4
7
8
9
10
11
12
Heat pump
SMS 40
AA9-X1
12V A
B GND