37
INSTALLATION
ENGLISH
LINK MODE
with 3 REC 08
SE
33
TR1
M2
M7
M9
M11
M8
M10
M6
M12
ST1
ST6
JP3
JP2
JP4
JP5
JP1
JP6
ST7
ST8
ST2
ST3
ST4
ST5
CH1
CH2
CH3
ST9
TR1
TR2
TR3
PT1A
PT1B
PT1C
1 2 3
4 5 6
7 8 9 10
11 12 13 14 15 16 17 18 19 20
21
22
32
34
35
36
37
38
39
40
41
1
2
3
1
2
3
1
2
3
1
2
1
2
1 2
1 2
1 2 3
1 2 3 4 5
1
2
3
4
5
1 2
1 2
1 2
1
2
3
4
5
6
1 2 3
M1C
M4
M1B
M1A
23
24
25
26
27
28
29
30
31
REC 08
IAT
REC 08
IBT2
REC 08
IBT1
REC (OT+)
boiler
jumper
on ST6
REC(OT+)
Connection to boiler control REC (M4 33-32)
SE
External sensor (M12 36-37)
REC08 IAT
Remote
control
HIGH temperature system (M1C 31-30)
REC08 IBT1
Remote control
LOW temperature system 1 (M1A 25-24)
REC08 IBT2
Remote control
LOW temperature system 2 (M1B 28-27)
(*)
The jumpers to the terminals ST1 and JP6 must be set
to the factory default position.
LINK MODE
with 2 Thermostats / Chrono-thermostats and 1 REC 08
M1C
M1B
M1A
23
24
25
26
27
28
29
30
31
TA/CT
IAT
TA/CT
IBT2
REC 08
IBT1
SE
33
TR1
M2
M7
M9
M11
M8
M10
M6
M12
ST1
ST6
JP3
JP2
JP4
JP5
JP1
JP6
ST7
ST8
ST2
ST3
ST4
ST5
CH1
CH2
CH3
ST9
TR1
TR2
TR3
PT1A
PT1B
PT1C
1 2 3
4 5 6
7 8 9 10
11 12 13 14 15 16 17 18 19 20
21
22
32
34
35
36
37
38
39
40
41
1
2
3
1
2
3
1
2
3
1
2
1
2
1 2
1 2
1 2 3
1 2 3 4 5
1
2
3
4
5
1 2
1 2
1 2
1
2
3
4
5
6
1 2 3
M4
REC (OT+)
boiler
jumper
on ST6
REC(OT+)
Connection to boiler control REC (M4 33-32)
SE
External sensor (M12 36-37)
TA/CT IAT
Ambient
thermostat/chrono-thermostat
HIGH temperature system (M1C 30-29)
REC08 IBT1
Remote control
LOW temperature system 1 (M1A 25-24)
TA/CT IBT2
Ambient thermostat/chrono-thermostat
LOW temperature system 2 (M1B 27-26)
(*)
The jumpers to the terminals ST1 and JP6 must be set
to the factory default position.
9
The Ambient Thermostats and the Chrono-thermostats
must have a dry contact (potential free).
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
fl
oating 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-
er's electrical power rating. Please refer to the technical
data to check
−
the electrical power rating for the model installed
−
to connect the appliance to an ef
fi
cient earthing system
−
to ensure that access to the power socket is protected af-
ter installation.
0
The use of gas or water pipes to earth this appliance is strict-
ly prohibited.
9
The manufacturer declines any liability for damage caused
due to the lack of a proper earthing system or failure to
comply with the wiring diagrams.
2.7
Associating the zone to the corresponding channel
The
BAG
3
is able to manage two or three water zones at different
temperatures:
Zone 1
BT1 low temperature system associated with circulation
unit 1 and mixing valve 1
Zone 2
BT2 low temperature system associated with circulation
unit 2 and mixing valve 2
Zone 3
At high temperature system associated with circulation
unit 3
1
2
3
2
1
To control the zones, the
BAG
3
board has three channels to
which REC, TA or CT can be connected:
CH1
channel 1 (main channel)
CH2
channel
2
CH3
channel 3.
Factory default settings are:
Zone 1
= CH1
channel 1 (main channel)
Zone
2
= CH2
channel 2
Zone 3
= CH3
channel 3
