Installation Instructions
Appendix
40 Installation instructions aroTHERM 0020147164_04
16 Outside temperature sensor/DCF receiver
19 Maximum thermostat
91 VWZ AI VWL X/2 auxiliary module
92 VWZ MWT 151 heat exchanger module
94 VWZ MEH 60 auxiliary heating module
HK-P Heating pump 1
HK1-P Heating pump 1
HK2-P Heating pump 2
UV1 Diverter valve 1
SP1 Cylinder temperature sensor
VF1 Flow temperature sensor 1
VF2 Flow temperature sensor 2
ZP Circulation pump
C.4 Wiring diagram 12 A
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
M
91
VWZ AI VWL X/2
UV1
230 V~
SP1
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
L1 L2
L3
PE N N
1
2
400 V~
VF1
94
VWZ MEH 60
M
19
nc
28 (MA2)
M
19
nc
28 (MA1)
VRC 470
13e
VR 81
13a
AF
DCF
T0
3,3 V / 5 V /
24 V
2
1
2
1
3 Heat pump
13a Remote control unit
13e System controller
16 Outside temperature sensor/DCF receiver
19 Maximum thermostat
28 Zone valve
91 VWZ AI VWL X/2 auxiliary module
94 VWZ MEH 60 auxiliary heating module
UV1 Diverter valve
SP1 Cylinder temperature sensor
VF1 Flow temperature sensor










