38
71.07144.01 - EN
INSTRUCTIONS FOR FITTERS
IMPORTANT:
if fitting a single flue duct, make sure it is adequately insulated (e.g.: with glass wool) wherever the duct
passes through building walls. For detailed installation instructions, consult the technical data provided with the accesso-
ries.
17. ELECTRICAL CONNECTIONS
18. CONNECTING THE ROOM THERMOSTAT
• access the power supply terminal block (figure 9) as described in the previous section;
• remove the jumper on terminals (1) and (2);
• thread the two-wire cable through the grommet and connect it to these two terminals.
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
• 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 9).
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 carrier).
IMPORTANT:
respect polarity
L
(LIVE) -
N
(NEUTRAL).
(L) =
Live
(brown)
(N) =
Neutral
(blue)
=
Earth
(yellow-green)
(1) (2) =
Contact for ambient thermostat
Figure 9
CG_2134 / 0904_2308
