Connecting The Mains Supply; Connecting The Ambient Thermostat; Connecting The Room Thermostat - Baxi Nuvola 3 BS 40 Series Operating And Installation Instructions

16. CONNECTING THE MAINS SUPPLY

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 3x0.75mm2 cable with a maximum diameter of
8 mm.
Access to the power supply terminal block
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 (light 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.

17. CONNECTING THE ROOM THERMOSTAT

INSTRUCTIONS FOR FITTERS
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7113868.01 - en