Vaillant TURBOmax Pro 28 Instructions For Installation And Servicing page 25

Caution
Mains connection terminals L
and N remain live even when
the boiler on/off control is
switched off.
BOILER INSTALLATION SEQUENCE
Connection to the main
supply
Lower the control panel.
Unclip the terminal box cover (1)
from the control panel (2).
Feed the power supply cord in to
the appliance as shown (fig I.9).
Use cable clamps.
Connect the power supply cord as
follows (Fig. I.11, on page 26).
Green/yellow (earth) wire
boiler terminal Earth sign
Blue (neutral) wire
boiler terminal N
Brown (live) wire
boiler terminal L
Note: DO NOT use boiler terminal
connections 7-8-9.
Refit the terminal box cover by
pushing into place until it clips
back into position.
Raise the control panel and secure
in place.
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