Vaillant ecoTEC plus Instructions For Installation And Servicing page 33

Fig. 4.14 Wiring system
> Connect the flex to the L, N and earth plug to the ter-
minal block.
Green/yellow (earth) wire – boiler terminal Earth sign
Blue (neutral) wire
Brown (live) wire
i
Do not connect any power voltage to the con-
nections 7-8-9 or BUS (+,-).
i
Ensure that the wires are securely fixed in the
terminal block.
> Refit the terminal box cover by pushing into place
until it clips back into position.
> Raise the control panel.
Instructions for installation and servicing ecoTEC 839592_13
- + 7 8 9 L N 3 4 5
- + 7 8 9 L N 3 4 5
– boiler terminal N
– boiler terminal L
Boiler installation sequence 4
33