48
L1
N
L1
N
(MV1)
L1
N
L1
N
(M2)
L1
N
(M1)
U
S
C
A
LL
A
R
M
SI
G
N
A
L
C
O
M
A
N
D
C
O
M
.
IN
G
R
AN
AL
O
G
.
M
od
bu
s
B
M
od
bu
sA
0-
10
V
-
G
N
D
0-
10
V
-I
N
G
R
.
St
emp
.A
C
C
SAFETY
+24V
eB
U
S-
eB
U
S+
0 1
2
3
45
6
7
8
9
Y4
1
2
3
4
1
2
3
M2
R
FL
C
.P
.M
.
P.
C
H
C
O
M
A
N
D
P.
Coll
.
C
O
M
A
N
D
P.
Ca
r.
D
H
W
1 2 3 4 5 6
Y3
Y2
12 11 10 9 8 7 6 5 4 3 2 1
0 1
2
3
45
6
7
8
9
9
8
10 11 12 13 14
2
1
3 4 5 6 7
Jp2
G V W
H
TA
SE
1 2 4
A4
ALIM (50)
+24V GN
D
eB
U
S+
SMG
W
H
W
H
R B
K
B
R
BL
-N
BR
-L
1
R
BK
F-6,
3A
A2
3
1
4
2
M
od
bu
sA
M
od
bu
sB
A1
Ufly
BR
BL
BK
GN
D
BR
eB
U
S+
R
+24V
1
3 2
BR BL
Y/
G
BR
BK
BR
BL
BR
IG
2
1
G
N
D
A4
3
1
4
2
1
2
3
A3
3
1
4
2
2
1
C
4L
1N
5L
2N
GN
D
+2
4V
eB
U
S+
IG1
IG2
Y G
/
HSCP
(M3)
ALIM.
230 V - 50 Hz
TLG
LTLG
1b
1a
BR
BL
Y/
G
BCM
R BR BK
12
34
5
67
A2 A1
A4 A3
Y2
Y1
Y3
G
N
D
12
12
3
BL
BR Y
G/
ST1
1
R
R
FILTER
4
N° MOD.
1
2-3
5
2
2-3/4-5
6
2
2-3/4-5
7
3
2-3/4-5/6-7
N
L1
BR
BL
Y G
/
A5/A6-A5/A6
BMM 2-7
N
L1
BR
BL
Y G
/
2
1
2
1
BK GND
BR +eBUS
E.RIL.
1-7/8
TEFLON WH
N
L
V1
N
L1
BL
BR
Y G
/
ST2
1
BK
(-)
BR
(P
W
M
)
BL
(T
AC
H
O)
O
R
(+
)
OR +24V
BL
XWDC
1
2
3
4
1
2
3
4
A2/A3-A2/A3
BMM 2-7/8
PHS
1-2: F ASE
H
NOT SENS.
2-3: F ASE SENSIB
H
.
PIN 1
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
Y1
1
2
3
4
A2
1
2
3
4
A3
A1
1
2
3
4
5
6
A4
A8
3
2
1
4
7
6
5
8
3
2
1
A7
4
5
6
A5
2
1
A6
2
1
R
O
D
1
R
O
D
F1
A2
BK GND
BR +eBUS
OR +24V
BL
XWDC
1
2
3
4
A3
(*) ARES TEC 440 ÷ 900
1
2
3
4
5
6
7
8
9
10
11
12
A4
S 1
R
W
H
B
K
SR
W
H
B
K
B
L
B
L
TL
T 1
L
B
L
B
L
B
L
SR
2-8
TL
2-8
W
H
B
K
B
L
A4
1
2
3
4
5
6
7
8
9
10
11
12
(*) ARES TEC 100 ÷ 350
1
2
3
4
5
6
7
8
9
10
11
12
A4
S 1
R
W
H
W
H
SR
W
H
W
H
B
L
B
L
TL
T 1
L
B
L
B
L
B
L
SR
2-7
TL
2-7
W
H
W
H
B
L
A4
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
A1
VM (R)
1 - 7 / 8
2 3 4 5
A8
3
2
1
4
7
6
5
8
3
2
1
A7
4
5
6
V2
VG
1 - 7 / 8
T.ACC.
1 - 7 / 8
1
E.ACC.
1 - 7 / 8
SILICON - R
Y G
/
BR
BL
A5
A6
eBUS +
eBUS
+ 24 V
MOD. 1
KIT SHC
(+24 V only
for 1 SHC)
VM (A)
2 3
BR
BL
L1
N
BL
BR Y
G/
ST1
1
VM (A)
2 3
BR
BL
BL
BR Y
G/
ST1
1
VM (A)
2 3
ST1
1
VM (A)
2 3
BL
BR Y
G/
BR
BL
1° Mod.
intermediate /
last module
FILTER
POSITION BETWEEN MOD.
ALIM. VENT.
ALIM. VENT.
ARES TEC 100 ÷ 350
L1
N
BL
BR Y
G/
ST1
1
VM (A)
2 3
L1
N
BL
BR Y
G/
ST1
1
VM (A)
2 3
FILTER
L1
N
BL
BR Y
G/
ST1
1
VM (A)
2 3
(MV1)
BL
BL
BK
BK
BK
BK
FILTER
ALIM. VENT.
ARES TEC 440 ÷ 900
ALIM. VENT.
BMM
(*)
F1
PF
min
2
1
3 4 5 6 7
9
8
10 11 12 13 14
2
1
C
N
C
3
1
4 11
3 10
8 2 9
1
C
N
O
13 6
A1
B
R
W
H
W
H
W
H
B
R
B
R
W
H
B
R
R R
O
R
O
R
PF SL PG SRR
Instructions for the installer
4.3 PRACTICAL CONNECTION DIAGRAM
KEY
E. ACC.
Ignition electrode
E. RIL.
Detection electrode
HSCP
Temperature control
SR
Heating sensor (only 1st mod.)
SR 1÷7
Local heating sensor
PF
Flue pressure switch (only 1st mod.)
PF min
Minimum Flue pressure switch (only
1st mod.)
SL
Condensate level sensor (2nd mod.)
T. ACC.
Ignition Transformation
TL
Limit thermostat
TL 1÷7
Local limit thermostat
VG
Gas valve
VM (A)
Modulating fan power supply
VM (R)
Modulating fan adjustment/Det.
SRR
Global return sensor
PG
Gas pressure switch
IG
Main switch
TLG
General limit thermostat
LTLG
General limit thermostat light
F
Fuse