Connecting The Mains Supply - Baxi LUNA 3 COMFORT MAX Installers And Users Instructions

15.6 separated vertical flue terminals installation options
L max­ = 15 m MAX 250 Fi
L max­ = 12 m MAX 310 Fi
important: if fitting a single ex­haust flue duct, ensure it is adequately insulated (e.g.: with glass wool) wherever the duct
passes through building walls.
For detailed instructions concerning the installation of fittings refer to the technical data accompanying the fittings.

16. connecting the mains supply

Electrical safety of the appliance is only guaranteed by correct grounding, in compliance with the applicable laws and
regulations.
Connect the boiler to a 230V monophase + ground power supply by means of the three-pin cable supplied with it and
make sure you connect polarities correctly.
use a double-pole switch with a contact separation of at least 3mm in both poles.
In case you replace the power supply cable fit a HAR H05 VV-F' 3x­0.75mm
...access to the power supply terminal block
• isolate the electrical supply to the boiler by the double-pole switch;
• unscrew the two screws securing the control board to the boiler;
• rotate the control board;
• unscrew the lid and gain access to the wiring (Figure 10).
The 2A fast-blowing fuses are incorporated in the power supply terminal block (to check or replace the fuses, pull out the
black fuse carrier).
iMportant: be sure to connect polarities cor-
rectly l (LIVE) - n (NEUTRAL).
(L) = live (brown)
(N) = neutral (blue)
( ) = Ground (yellow/green)
(1) (2) = room thermostat terminal
wArNING: If the heating is directly connected
to a floor heating system, a safety overheating
thermostat should be provided by the instal-
ler.
instructions pertaininG to the installer
L max­ = 14 m MAX 250 Fi
L max­ = 10 m MAX 310 Fi
2 cable with an 8mm diameter max­.
Figure 10
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925.480.1 - GB