Baxi DUO-TEC COMPACT, Instruction Manual For Users And Fitters

Page: 10 / 76

7710400 (01-06/18) 10
INST
ALLER Section
(en)
11. ELECTRICAL CONNECTIONS
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
2
cable with a maximum diameter of 8 mm.
To access the terminal block, remove the front boiler panel (fixed with two screws at the bottom), turn the control box downwards
and access terminal blocks, used for the electrical connections, after removing the protective cover. The 2 A fast-blowing fuses are
incorporated in the power supply terminal block (to check and/or replace the fuse, pull out the black fuse carrier).
SEE WIRING DIAGRAM IN ANNEX "SECTION" B AT THE END OF THIS MANUAL.
Make sure that the overall rated power input of the accessories connected to the appliance is less than 2A. If it is higher, install
a relay between the accessories and the electronic board.
TERMINAL BLOCK M1
(L)
=
Live
(brown)
(N)
=
Neutral
(light blue).
=
Earth
(yellow-green).
(1) (2)
= contact for
Room Thermostat
.
Put back the jumper on terminals 1-2 of boiler terminal
block M1 if the room thermostat is not used or if the
Remote Control, supplied as an accessory, is not
installed.
TERMINAL BLOCK M2
Terminals 1 - 2:
connection to the Remote Control (low voltage) supplied as an accessory.
Terminals 4 - 5 (common):
external Probe connection (supplied as an accessory)
Terminals 3-6-7-8:
not used.
Terminals 9-10:
storage boiler sensor connection.
If the appliance is connected to an underfloor system, install a limit thermostat to prevent the latter from overheating.
Use the relative cable grommets at the bottom of the boiler to thread the cables through to the terminal blocks.
11.1 CONNECTING THE ROOM THERMOSTAT
The connections in terminal block M1 are high voltage (230 V). Before making connections, make sure the appliance is
disconnected from the power supply. Respect polarity L (LIVE) - N (NEUTRAL).
To connect the Room Thermostat to the boiler, proceed as described below:
• switch off the boiler;
• access the terminal block M1 ;
• remove the jumper from the ends of contacts
1-2
and connect the wires of the Room Thermostat;
• switch on the boiler and make sure the Room Thermostat works correctly.
1
9
8
7
6
5
4
3
2
10
L
N
2
1
CG_2394
M2
M1