Baxi Nuvola 3 Comfort Notice D'emploi Et D'installation page 21

This machine is only electrically safe if it is correctly connected to an efficient earth system in compliance with current
safety regulations.
Connect the boiler to a 230V single-phase earthed power supply using the supplied three-pin cable, observing correct
LIVE-NEUTRAL polarity.
Use a double-pole switch with a contact separation of at least 3 mm.
When replacing the power supply cable, fit a harmonised HAR H05 VV-F' 3x0.75 mm
of 8 mm.
Access to the power supply terminal block
• disconnect the boiler from the mains power supply using the two-pole switch;
• remove the two screws fixing the control panel to the boiler;
• rotate the control panel;
• remove the cover and access the wiring area (figure 11).
The 2A fast-blowing fuses are incorporated in the power supply terminal block (to check and/or replace the fuse, pull out
the black fuse carrier).
(L) = Live (brown)
(N) = Neutral (blue)
= Earth (yellow-green)
(1) (2) = Contact for ambient thermostat
IMPORTANT:
respect polarity L (LIVE) - N (NEUTRAL).
Figure 11
WARNING
: If the appliance is directly connected to an underfloor system, install a safety thermostat to prevent
the latter from overheating.
INSTRUCTIONS FOR FITTERS
17. ELECTRICAL CONNECTIONS
21
cable with a maximum diameter
2
7864176 - en