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Appendix
0020147164_04 aroTHERM Installation instructions 37
43 Safety group drinking water connection
48 Pressure gauge
50 Differential-pressure bypass valve
52 Individual room control valve
91 VWZ AI VWL X/2 auxiliary module
94 VWZ MEH 60 auxiliary heating module
KW Cold water
UV1 Diverter valve 1
VF1 Flow temperature sensor 1
C Wiring diagrams
C.1 Wiring diagram 8 E
UV1
MA2
MA1
230 V~
230 V~
ME
EVU
2
1
SP1
DCF/AF
VF1
+
-
BUS
ZH
230 V~
2
1
PE
1
2
N
PE
Auf
Zu
N
PE
N
PE
N
PE
N
PE
N
L
L
L
L
16
DCF 0 AF
91
VRC 470
13e
VF1
230 V~
X41
1
L
N
230 V~
FB
AF
RF
DCF
0
0
-
+
6
230 V~
eBUS
13h
1
VR32
VWZ AI VWL X/2
VWL x5/2 A 230 V
-
+
EBUS
FLOOR HX7
X4
230 V~
L
N
X9
X2
3
1
2
400 V~
L3
N
L2
L1
X2
VWL x5/2 A 400 V
AF
DCF
T0
3,3 V / 5 V /
24 V
2
1
2
1
X31
VCW
1 Heat generator
3 Heat pump
13e System controller
13h Bus coupler
16 Outside temperature sensor/DCF receiver
91 VWZ AI VWL X/2 auxiliary module
VF1 Flow temperature sensor 1
37


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