Connecting The Mains Supply - Baxi Nuvola 3 Comfort Operating And Installation Instructions

16.5 SEPARATE VERTICAL FLUE INSTALLATION OPTIONS
This machine is only electrically safe if it is correctly connected to an efficient earth system in compliance with current safety regula-
tions.
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' 3x0.75mm2 cable with a maximum diameter 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 fuse is incorporated in the power supply terminal block (to check and/or replace the fuse, pull out the black fuse car-
rier).
(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
L max = 15 m
17. ELECTRICAL CONNECTIONS
20
C607215 - GB