Electronic Box; Connecting The Power Supply - Vaillant geoTHERM VWS Installation Instructions Manual

6.3

Electronic box

9
Fig. 6.1 Electronic box
Key to Fig. 6.1
Control box upper level:
1 Cable clamps
2 Terminal strip for sensors and external components
3 Controller PCB
4 Contactor for electric auxiliary heating
5 Reset button for the auxiliary heating safety thermostat (see
Item 11)
6 In conjunction with a multi-cylinder: Connections for a 3-way
valve, to be fitted on the customer side
7 Power supply for additional electric heating and control (dual-
circuit supply)
8 Power supply for heat pump (unblocked mains supply)
Control box lower level:
9 Operating capacitor for the compressor
10 Safety thermostat (STL) for the auxiliary heating
11 Starting capacitor (compressor)
12 Starting current limiter PCB
Additionally, there are two coiled cables hanging inside
the control box (not shown here):
– small two-way plug:
connecting cable for the operating console
– large three-way plug:
power supply for vrnetDIALOG
A control cable for the vrnetDIALOG is also supplied
(accessories).
Installation instructions geoTHERM VWS 0020046310_01
10 11 12
8
A1 A2
L1 L2 L3
N L
N L N N L L N L L L
S S B B A Z N
T1 T2 T3
7 6 5 4
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 approp-
riate strain relief clamps and on to the connection ter-
minals on the connector strip.
• Carry out the wiring of the connection as illustrated in
the following wiring diagrams.
h Note!
The appliance covers are fitted after
completion of the installation work.
Electrical installation 6
- +
L N Zu Auf N L N L N L N Zu Auf N 1 2 1 2 1 2 1 2 DCF OT AF 1 2
ZH LP/UV 1 ZP SK2-P HK2-P HK2-M VF2 RF1 VF1 SP BUS DCF/AF EVU
1 2 3 4 5 SCH 6 7 8 ASB
N L N L N L N L N L 2 1 L N 2 1 L N 2 1
1
2
1 2
1xZP
3
25