Room unit design
COMPONENT POSITIONS
AA4
X1
LIST OF COMPONENTS
ELECTRICAL COMPONENTS
AA4
Display unit
AA32
Space for memory card
X1
Terminal block, communication and voltage
X5
Power supply, Micro-USB
S1
Switch
Designations according to standard EN 81346-2.
NIBE RMU S40 | GB
AA32
S1
X5
Electrical connection
NOTE
All electrical connections must be carried out
by an authorised electrician.
Electrical installation and wiring must be carried
out in accordance with the stipulations in force.
The climate unit must not be powered when
installing RMU S40.
CONNECTING COMMUNICATION
Use cable type LiYY, EKKX or equivalent for the follow-
ing connections.
S1155
The terminal block in RMU S40 is connected to terminal
block X30:1-4 on the PCB (AA2) in the heat pump.
Heat pump
x
RMU S40
RMU 40
1
2
3
4
S1255
The terminal block in RMU S40 is connected to terminal
block X30:1-4 on the PCB (AA2) in the heat pump.
AA2-X30
AA2-X30
1
2
3
Heat pump
Värmepump
RMU S40
RMU 40
1
2
3
AA2-X30
AA2-X30
4
A
3
B
2
+12V
1
GND
4
4
21