Nibe S2125 - Page 28

COMMUNICATION
Software version
In order for S2125 to be able to communicate with in-
door module (VVM)/control module (SMO), you may
need to update to a more recent software version.
Disconnect the connections in S2125
When connecting communication to an indoor mod-
ule/control module, you need to disconnect the connect-
ors in S2125.
PRESS
1
PULL
LEK
2 3
PRESS
1
PULL
LEK
2 3
PRESS
1
PULL
LEK
2 3
PRESS
1
PULL
LEK
2 3
Pull up
Push down
1 2
3
Connection to indoor module/control module
S2125 communicates with NIBE indoor modules/control
modules by connecting a three-core, screened cable
(max area 0.75 mm²) to terminal block X22:1–4.
For connection of indoor module/control module, see
relevant manual on nibe.eu.
VVM S
Inomhusmodul
F2120
3
2
1
4
GND
GND
A
A
B
B
3
2
1
4
AA2:X23
AA2:X22
+12V
GND
B A
2 3 41
AA2-X30
S2125
Indoor module
VVM
Inomhusmodul
F2120
AA3-X4
3
2
1
4
GND
GND
A
A
B
GND
A
B
B
3
2
1
4
14
13
12
11
10
15
AA2:X23
AA2:X22
S2125
Indoor module
NIBE S2125Chapter 5 | Electrical connections28