INSTALLATION
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Electrical connections
For increased safety, ask a qualied technician to perform a
thorough check of the electrical system.
The manufacturer is not responsible for any damage caused by
the lack of a suitable earthing system or by the malfunctioning
of the electricity mains supply.
Make sure that the system is able to withstand the maximum
power absorbed by the boiler (this is indicated on the
appliance data plate). Check that the section of the wires is
suitable and is not less 0,75 mm
2
The appliance must be connected to an efecient earthing
system if it is to operate correctly.
The power supply cable must be connected to a 230V-50Hz
network, where the L-N poles and the earth connection are all
respected.
Important!
In the event that the power supply cable must be changed,
replace it with one with the same specications.
POWER SUPPLY CABLE
Important!
The appliance is supplied with a y-lead already
connected, this must be connected to a 240V supply
fused at 3 Amp and must facilitate completed electrical
isolation of the appliance, by use of a fused double pole
isolator having a contact separation of at least 3mm in all
poles or alternatively by means of a 3A fused three pin plug
and unswitched shuttered socket outlet both complying with
BS1363.
The use of multiplugs, extension leads or adaptors is strictly
prohibited.
It is strictly forbidden to use the piping from the hydraulic,
heating and gas systems for the appliance earthing
connection.
The boiler is not protected against the effects caused by
lightning. If the mains fuses need to be replaced, use 2A rapid
fuses.
Peripheral unit connection
To access peripheral unit connections carry out the following
steps:
- Disconnect the boiler from the power supply
- Remove the casing
- Rotate the control panel while pulling it forwards
- Unhook the two clips “a”, rotate the cover “b” to have
access to the peripherical connections
- Unscrew the two screws “c” and remove the cover “d” of the
instrument panel to have access to the main P.C.B.
Peripheral connections:
BUS = Remote control connection
FLOOR/TA2 = the underoor heating thermostat or the room
thermostat 2 (selected via parameter 223)
SE = the external sensor.
SOL = Solar temperature probe
TA1 = the room thermostat 1
WARNING!
BEFORE PERFORMING ANY WORK ON
THE BOILER, FIRST DISCONNECT IT
FROM THE ELECTRICAL POWER SUPPLY
USING THE ISOLATOR SWITCH AND
REMOVE THE FUSE.
c
d
c
a
b
a
BUS
T B
FLOOR
TA2
SE TNK SOL TA1
CN1
SENSYS HD
SYSTEM INTERFACE
available as a accessory
CUBE
standard for ALTEAS ONE+ NET
available as an accessory (GENUS ONE+ WIFI)
Outdoor sensor
available as accessory
Room Thermostat 1
available as accessory
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