Vaillant VR 71 - 4.9.4.3 Wiring diagram 0020178440

44 Operating and installation instructions 0020288151_04
4.9.4.3 Wiring diagram 0020178440
230V~
N L
R1
N L
R2
N L N
R3/R4
N
R5/R6
1
2
12
230V~
0...24V
S1
1 2
S2
1 2
S3
1 2
S4
1 2
S5
1 2
S6
1 2
S7
I0I
_
BUS
230 V~
12d
VR70
SysFlow
FS2
12k2
3f2
3f1
3e
M
9k2
M
- +
12m
AF
0
DCF
230 V~
230 V~ 0 ...24 V
L
N
X1
230 V~
X12
L
N
24V=
RT
Burn.
L
off
N
BUS
- +
X16
Opt 1
X100
X41
X40
X51
X35
X31
0( ) 0( ) DCF RF AF FB
1
ecoTEC
X32
X36
12q
X13
Opt 2
12
DHW