Opening The Power Supply Pcb's Electronics Box; Establishing The Power Supply - Vaillant VWL Series Operating Instructions Manual

6 Electrical installation
6.6.2 3~/400V dual power supply
X311 X310
1. Note the specifications on the sticker on the electronics
box.
2. Install two disconnectors for the product.
3. Use the enclosed 5-pole power supply cable (5 x
2
2.5 mm ) and the preinstalled 3-pole power supply
2
cable (3 x 4 mm ) .
4. Remove the preinstalled 3-pole power supply cable
from the X300 connection.
5. Remove the 2-pole bridge between contacts L1 and L2
on the X300 connection.
6. Remove the 2-pole bridge between the X310 and X311
connections.
7. Connect the 5-pole power supply cable (from the heat
pump electricity meter) to the X300 connection.
8. Connect the 3-pole power supply cable (from the
household electricity meter) to the X311 connection.
9. Use the strain relief clamps to secure the cables in
place.
6.7 Opening the power supply PCB's electronics
box
1. Remove the front casing. (→ Page 26)
A
2. Hinge the electronics box forwards.
3. Detach the four clips, on the left and the right, from the
brackets.
30
X300
C
D
B
6.8

Establishing the power supply

1
2
3
1. Remove the front casing. (→ Page 26)
2. Open the power supply PCB's electronics box.
(→ Page 30)
3. Guide the power supply cable (3) and additional power
supply cables (230 V) (4) through the central opening
and into the product.
4. Guide the eBUS cable (1) and other low-voltage con-
nection cables (24 V) (2) through the left-hand unit
opening and into the product.
1
5. Guide the power supply cables through the strain relief
(1) to the terminals on the power supply PCB.
6. Connect the power supply cable to the corresponding
terminals.
7. Secure the power supply cable in the strain reliefs.
Installation and maintenance instructions Hydraulic Station 0020291544_01
4