Nibe S2125, Installer Manual, Page: 27 / 64

CONNECTING EXTERNAL CONTROL VOLTAGE
When connecting external control voltage, remove the
bridges from terminal block X5 (see image).
L
EK
L
0
4.
2.
3.
1.
Connect external control voltage (230V~ 50Hz) to terminal
block X5:L, X5:N and X5:PE (as illustrated).
F2120 Externt
AA2:X5
N
L
N
L
External S2125
COMMUNICATION
Software version
In order for S2125 to be able to communicate with indoor
module (VVM)/control module (SMO), you may need to up-
date to a more recent software version.
Disconnect the connections in S2125
When connecting communication to an indoor module/con-
trol module, you need to disconnect the connectors 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
27 Chapter 5 | Electrical connections NIBE S2125