Vaillant geoTHERM VWS, Installation Instructions Manual

Page: 25 / 96

25
Installation instructions geoTHERM VWS/VWW 0020051574_01
6.3 Electronic switchbox
h
Note
Depending on the model version, the de-
tails of the electronic switchbox for your
heat pump may differ from those shown
in Fig. 6.1.
ABB A8-30-01
ABB A12-30-01 ABB A12-30-01 ABB A12-30-01
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 A8-30-01 ABB A8-30-01 ABB A8-30-01
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 SCH 6 7 8 ASB
N N Auf Zu L N 1 2 1 2 1 2 1 2 1 2 1 2 DCF OT AF
- +
Auf Zu
ZH
N L
ZP
N L
SK2-P N L
HK2-P
HK2 VF2 RF1 VF1 SP BUS DCF/AF EVU 1xZP LP/UV 1
1
2
3
14
13
11
10
4
5
6
7
8
9
Schütz für externe
Zusatzheizung
12
Fig. 6.1 Electronic switchbox
Key to Fig. 6.1
1 Cable clamps
2 Power supply, heat pump
3 Inrush current limiter PCB with LED indicator for inrush current
limiter (lights up green if OK)
4 VWW only: thermal overcurrent relay
5 VWW only: adjustment dial for immersion pump overcurrent
6 Protector contactor, brine pump
7 VWS 380/2 and VWS 460/2 only: control contactor, brine
pump
8 VWW only: control contactor, immersion pump with overcurrent
relay (motor protection)
9 Contactor, inrush current limiter
10 Control contactor, compressor
11 Protector contactor, compressor
12 Contactor for auxiliary heating
13 Controller PCB
14 Terminal strip for sensors and external components
Additionally, there are two coiled cables hanging inside
the electronic switchbox (not shown here):
- small two-way plug:
connecting cable for the operating console
- large three-way plug:
power supply for vrnetDIALOG
A vrnetDIALOG cable for connection to the eBUS is also
included in the scope of delivery (enclosure).
6.4 Connecting the power supply
Different types of power supply are provided for heat
pumps by the power companies. The heat pump can be
operated with various types of mains feed. Three types
of connection are described on the following pages.
• Pass the power supply cable(s) through the elongated
hole in the rear of the unit.
• Pass the cables through the unit, through the appro-
priate strain relief clamps and on to the connection
terminals on the connector strip.
• Carry out the wiring of the connection as illustrated in
the following wiring diagrams.
a
Caution!
The appliance casing must be fitted after
completion of the installation work.
Electrical installation 6