Vaillant VED E 8 INT Series Operating Instructions Manual page 41

– When using the lower grommet, the
power supply terminal that was in-
stalled at the top at the factory can
be routed for the electrical connec-
tion in the lower section.
5.3.1 Carrying out the top electrical
connection
1. Guide the connection cable through the
upper grommet (2).
2. Connect the individual phases to L1,
L2, and L3 on the power supply ter-
minal (1).
3. Connect the PE protective conductor to
.
0020288451_00 electronicVED Installation instructions
5.3.2 Carrying out the bottom
1
2
L 3
L 2
L 1
1. Guide the connection cable through the
lower grommet (3).
2. Unscrew the power supply terminal (1).
3. Route the power supply terminal, in-
cluding the internal cable, to the lower
position (2) in the product.
4. Screw the power supply terminal tightly
to the lower position.
5. Check whether the cables for the
power supply terminal are routed
correctly.
6. Connect the individual phases to L1,
L2, and L3 on the power supply ter-
minal.
7. Connect the PE protective conductor to
5.3.3 Installing an optional load-
If required, a load-shedding relay that con-
forms with current standards can be con-
nected to the product. The role of the re-
lay is to switch off other power consumers
while hot water is being drawn off via the
product so that the house installation is not
overloaded. The load-shedding relay must
fulfil the following criteria:
– Pull-in current < 15 A
Installation 5
electrical connection
.
shedding relay
1
L 3
L 2
L 1
2
3
39