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Installation instructions geoTHERM VWS/VWW 0020051574_01
6.9
Connecting an external boiler
If your external boiler has a Vaillant eBUS interface, you
can connect it to the heat pump eBUS via the VR 32 ac-
cessory (see also the VR 32 manual regarding this).
- +
DCF 0 AF
1x 2P
1 2
1 2
Tel BUS
F AF
DC /
Fig. 6.19 Connecting to a boiler with an eBUS interface
Boilers without an eBus interface must be connected via
the auxiliary heating contactor.
ABB A12-30-01
ABB A12-30-01
ABB A12-30-01
ABB A8-30-01
Schütz für externe
Zusatzheizung
Fig. 6.20 Connection of auxiliary heating contactor
The heat pump switches in the external boiler, depend-
ing on the heat requirement and controller setting. To
do this, set the hydraulic connection in Menu C8 "Auxil-
iary heater 1".
6.10
Fitting the cladding and the operating panel
AB
B
A12
-3
0-
01
AB
B
A
12
-30
-0
1
L3
L2
L1
N
PE
L3
L2
L1
N
PE
L3
L2
L1
N
PE
L3
L3
L2
L1
N
N
PE
L3
L2
L1
S
S
N
PE
L2
L1
L3
N
AB
B
A
8-
30
-0
1
ABB
A
8-3
0-
01
AB
B
A
8-
30
-0
1
1
L
L
L
L
L
1
L
N
N
N
N
N
2
N
2
1
2
1
L
N
2
3
4
5
SC
H
6
7
8
AS
B
N
N
Au
f
Zu
L
N
1
2
1
2
1
2
1
2
1
2
1
2
DC
F O
T
AF
-
+
Au
f
Zu
ZH
N
L
ZP
N
L SK
2-
P
N
L
HK
2-
P
HK
2
VF
2
RF
1
VF
1
SP
BU
S
DC
F/A
F
EV
U
1x
ZP
LP
/U
V
1
AB
B
A
12
-30
-0
1
Fig. 6.21 Mounting the side cladding
• Insert both side cladding panels into the guide slot at
the bottom of the frame of the heat pump, then slide
the cladding towards the rear.
• Fasten each cladding panel using two flat-headed
screws.
AB
B
A
12
-3
0-0
1
ABB
A
12
-3
0-0
1
L3
L2
L1
N
PE
L3
L2
L1
N
PE
L3
L2
L1
N
PE
L3
L3
L2
L1
N
N
PE
L3
L2
L1
S
S
N
PE
L2
L1
L3
N
ABB
A
8-3
0-0
1
AB
B
A
8-
30-
01
ABB
A
8-
30-01
1
L
L
L
L
L
1
L
N
N
N
N
N
2
N
2
1
2
1
L
N
2
3
4
5
SC
H
6
7
8
AS
B
N
N
Au
f
Zu
L
N
1
2
1
2
1
2
1
2
1
2
1
2
DC
F O
T
AF
-
+
Au
f
Zu
ZH
N
L
ZP
N
L SK
2-
P
N
L
HK
2-
P
HK
2
VF
2
RF
1
VF
1
SP
BU
S
DC
F/A
F
EV
U
1x
ZP
LP
/U
V
1
ABB
A
12-3
0-
01
Fig. 6.22 Fitting the front upper cladding
• Feed the console connector through the opening in
the front lower cladding panel and then press the
panel into the spring retainer on the cladding frame.
• Screw the cladding panel to the housing with the two
screws.
Electrical installation 6
