26
INSTALLATION
ENGLIS
H
2.6
Electrical connections
The
BAG
3
is prearranged with rubber cable feed-throughs (1) located
in the top section of the box allowing wiring to be passed through.
1
3
4
Below is an explanation of how to correctly connect the
BAG
3
on
the boiler and on devices.
9
Before carrying out any electrical intervention, set the main
system switch to "off".
Connecting the BAG
3
to the electrical power supply
− Pass the cable (2) which comes out of the electrical con-
nection box (3) through the cable feed-through (1) and
connect it to the electrical power supply (phase-neutral-
earth) making sure not to connect it below the boiler fuse.
1
2
3
Access to the BAG
3
connection terminals
− To access the
BAG
3
connection terminals, loosen the four
screws (4) and remove the cover (3).
1
3
4
Connecting the BAG
3
to the ambient thermostats/chrono-thermostats
− Carry out the connections of the ambient thermostats (TA)
and/or chrono-thermostats (CT) of each zone, as indicat-
ed in the diagram below. Before connection, eliminate
the relative jumper (TA1,TA2 or TAt3).
2
4
5
1
Cavo ingresso
di rete 230V
3
TA2 nero
TA1 rosso
nero
rosso
marrone
marrone
TA3 grigio
grigio
marrone
grigio
grigio
marrone
marrone
TA3 dopo aver
rimosso
ponticello
GRIGIO
in morsettiera
TA1 dopo aver
rimosso
ponticello
ROSSO
in morsettiera
TA2 dopo aver
rimosso
ponticello
NERO
in morsettiera
BAG
3
2 MIX BASIC
9
2
4
5
1
Cavo ingresso
di rete 230V
3
blu
TA1 rosso
rosso
rosso
marrone
TA3 grigio
rosso
grigio
marrone
grigio
grigio
marrone
blu
rosso
rosso
blu
rosso
nero
TBT 1
TA3 dopo aver
rimosso
ponticello
GRIGIO
in morsettiera
TA1 dopo aver
rimosso
ponticello
ROSSO
in morsettiera
BAG
3
MIX BASIC
The ambient thermostats (TA) and/or chrono-thermostats
(CT) of the low and high temperature systems must be con-
nected directly to the
BAG
3
using a cable with a minimum
section of 1 mm
2
.
9
The load represented by the pump will weigh directly on the
corresponding ambient thermostat (TA) and/or chrono-ther-
mostat (CT), therefore the TA and/or CT contact must be adapt-
ed to the application and be compatible with the electrical
rate of the pump not less than 6A (230Vac-50Hz).
Connecting the BAG
3
to the boiler
− Connect the
CONNECT LE
to the boiler (GEN) as indicated in
the diagram below.
9
nero
nero
marrone
blu
marrone
Fusibile 3.15A F
g/v
blu
g/v
marrone
blu
INGRESSO RICHIESTA
CALORE
CALDAIA o GENERATORE
Connect the mammut (B-B) of the
BAG
3
to the mammut (TA)
of the boiler using a cable with a minimum section of 2x0.5
mm
2
(please refer to the wiring diagram in the instruction
booklet for the installer of the specific boiler).
9
When using a phase-phase power supply, use a tester to
determine which of the two wires has the greater potential
compared to the earth and connect it to the L terminal. Con-
nect the remaining wire to the N terminal.
9
For floating power supplies, i.e. those which have no earth
connection, an insulation transformer must be used with a
secondary unit connected to the earth.
9
It is mandatory:
− to use a multi-pole trip-switch to disconnect the line in
compliance with CEI-EN standards (contact opening at
least 3 mm)
− to use cables with a 1.5 mm
2
section and respect the L
(phase) - N (neutral) connection
− that the amperage on the switch is adequate for the boil-
