Basic Safety Rules; Installation Of The Appliance; Hydraulic Connections; Electric Connections - Beretta CONNECT AT LE Installer And User Manual

1.3 Basic safety rules

For your safety, remember that:
the appliance should not be used by children or people that are unable to
use it properly;
it is dangerous to activate devices or electrical equipment such as switches,
domestic appliances, etc. if you smell any fuel or burning. Should a gas
leak occur, ventilate the room by opening the doors and windows, shut the
main gas valve, call in professionally qualified personnel from the Technical
Assistance service immediately;
do not touch the appliance when barefoot or when parts of your body are
wet or damp;
before cleaning, disconnect the appliance from the electricity mains by
switching the bi-pole switch for the plant and the main switch on the control
panel to "OFF";
any modifications to the safety and regulating devices without prior author-
isation or instructions from the manufacturer are forbidden;
do not pull on, disconnect, or twist the electrical cables that come from the
appliance, even when it is disconnected from the electricity mains;
do not block up or reduce the size of ventilation openings in the room in
which the unit is installed;
do not leave containers or inflammable substances in the room in which
the equipment is installed;
do not leave any part of the packing within reach of children.
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INSTALLATION OF THE APPLIANCE

FIG. 1 The Connect AT/BT LE can be wall-mounted or "built-in", and can be
located near the boiler or at a distance, provided the length of the hydraulic and
electrical connections between the boiler and the Connect AT/BT LE unit do not
exceed 15 metres.
The Connect AT/BT LE can be installed in positions exposed to the weather (rain,
sun, ice, etc.) only if in "built-in" installation.
Note: The wiring supplied is 2 metres long.
In case of installation of Connect AT/BT LE with "biult-in" boilers and
electrical connection made on the underside of recessed unit, overhang of
about 10 cm (inside the recessed unit) the corrugated pipe.
FIG. 2 Wall-mounted installation
When the Connect AT/BT LE is wall-mounted it must be supported by two ex-
panding wall anchors (supplied) that are suitable for the type of wall and weight
of the equipment.
We recommend using pipe sleeves built into the wall in order to limit the infiltration
of water.
These pipe sleeves are not supplied with the unit.
Electrical protection level IP10D.
FIG. 3 "Built-in" installation
When the Connect AT/BT LE unit is built-in:
- provide the building work, complete with a niche of suitable size for the Connect
AT/BT, to suit the thickness of the wall (minimum indicative dimensions shown
in the figure);
- position the Connect AT/BT LE in position, and remember to open out the two
support lugs to fix it more securely;
- protect the side edges and front while building in the device.
Since the hydraulic and electrical connections between the system and the Connect
AT/BT LE must be contained within the overall size of the device itself, first position
the Connect AT/BT LE and then the entry and exit pipes for the system and the
conduiting for the electric cables.
Electrical protection level IPX4D.
FIG. 4 TYPICAL INSTALLATION LAYOUT
The figure shows a possible way of installing the Connect AT/BT LE.
NOTE: To allow for installing taps (not supplied) a niche must be formed of sufficient
size to allow them to be fitted below the Connect AT/BT LE itself.

2.1 Hydraulic connections

Before forming the connections all the piping must be thoroughly flushes to remove
any residue that could compromise the proper functioning of the Connect AT/BT LE.
FIG. 5
The hydraulic connections to the boiler and the system must be carried out ration-
ally, as indicated in the figure.
Direct connections can be formed using the female couplings on the delivery and
return pipes for the Connect AT/BT LE, or taps (not supplied) can be fitted on the
lines for shutting off the lines.
These taps are very useful when maintenance is carried out, as they allow the
Connect AT/BT LE to be drained without having to drain the entire system.
Check that the expansion vessel on the boiler has sufficient capacity for
the size of the system.
FIG. 6
Once the Connect AT/BT LE has been installed, the 2 ramps supplied (along with
their seals) that interface with the boiler centres must be fitted inside the Connect
AT/BT LE (see figure).

2.2 Electric connections

To form the electrical connections for the Connect AT/BT LE, access must be
obtained to the Connect AT/BT LE and the boiler card.
FIG. 7 To gain access to the Connect AT/BT LE:
- remove the front cover panel from the Connect AT/BT LE.
If you decide to use cables other than those supplied, cables with a 0,50 mm
section must be used. The length of these connections must not exceed 15 metres.
CONNECTING THE ELECTRONIC SYSTEM CONTROL BOARD (supplied) TO
THE BOILER'S ELECTRONIC BOARD
This connection must be formed using the correct flat cable (supplied).
The electronic system control board must also be powered by the mains power
supply.
Prevent cables from coming into contact with anti-freeze resistances.
To form the connection, proceed as follows:
1. Remove the boiler's cover, open the back cover on the control panel, as shown
in the manual for the boiler.
FIG. 8a-8b
2. Insert the electronic system control board supplied (C) into its seating inside
the control panel, as shown in figure 2.
FIG. 9a-9b
3. Connect the flat cable to the electronic system control board and the electronic
boiler control board.
FIG. 10a-10b
4. To provide power to the electronic system control board, connect the cable's
four-pole connector (supplied).
FIG. 11
Pass the wiring harness between the plastic of the control panel and the fuse carrier.
FIG. 12a-12b
Connect the prods to the mains power supply:
- blue wire - neutral
- brown wire - phase
(see the wiring diagram).
FIG. 13
5. Indoor boilers only: insert the two-pole terminal M2A for the room thermostat
below the power supply terminal board in the boiler's control panel.
CONNECTING THE SYSTEM CONTROL BOARD TO THE CONNECT AT/BT
LE CONNECTION BOX TERMINAL BOARD
Use the cables provided in the kit, and follow the instructions below:
1. 5-pole low temperature control cable
2. High temperature control cable with prods.
3. Screened signal cable with 2-pole connector.
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