Vaillant aroTHERM plus - C Wiring Diagram; Wiring Diagram, Power Supply, 1~;230 V

Appendix
136 Installation and maintenance instructions aroTHERM plus 0020297937_01
C Wiring diagram
C.1 Wiring diagram, power supply, 1~/230V
1~/230V
1
2
3
4
5
5
4
3
2
1
S20
S21
BUS
eBUS
+
-
5
6
3
4
1
2
3
4
1
2
N
L
L
N
1
2
L
N
L1
L2
L3
N
L1
L2
L3
N
3
2
1
L
N
3
2
1
L
N
X211
X210
X200
X201
X206
X214
X213
X212
3
2
1
L
N
2
3
1
11
10
4
5
6
9
8
7
12
1 INSTALLER BOARD PCB
2 Power supply connection
3 Bridge, depending on the type of connection (energy
supply company lockout)
4 Input for the limit thermostat
5 Input S21, not used
6 eBUS line connection
7 Connection to the HMU PCB
8 Power supply for fan 2 (only for product VWL 125/6
and VWL 155/6)
9 Power supply for fan 1
10 Compressor
11 INVERTER assembly
12 Range for the safety extra-low voltage (SELV)