Features and technical data
12
1
Figure 1.14
Boiler electrical connections diagram - Module 1
A Connection of TA2 connector to module
2
B
Connection to module 2
C
CAN bus connection to module 2
D CAN bus connection
CS Heating cable
EA Ignition electrode
ER Flame detector
EV Blower
FM Flowmeter
L
Line
MP Control panel terminal block
N
Neutral
PM Water pump
Pacq Water pressure switch
RS2 Heating resistance condensate drain 2
SCH Control board
SCH2
CAN-NDG board
SE Outdoor temperature probe
SR Heating delivery probe
SRi Heating return probe
Ta Antifreeze thermostat
TA1 Connector for optional room thermostat
for module 1
TA2 Connector for optional room thermostat
for module 2
TF Flue gas thermofuse
TS Safety thermostat
Tra Ignition transformer
VG Gas valve
ar
Orange
bi
White
ce Light blue
gi
Yellow
gr Grey
ma Brown
ne Black
EA
VG
Tra
ER
11
10
9
8
7
12
13
14
15
16
17
M12
M9
M7
M5
M2
M4
M8
M10
M15
M16
1
2
3
4
57
61
60
59
58
38
31 30 29 28
27 26
62
63
64
65
66
67
68
51
52
53
54
55
56
5
6
M13
M14
PM
SRi
M6
GND
PWM
HS
+24V
32
33
34
35
36
37
39
40
41
42
43
44
Pacq
ne
ne
ce
ma
ma
ce
SR
TF
TS
ma ce
0
L
H
SHIELD
E-SL
T088 CAN-NDG
E-SL
T088 CAN-NDG
CS
1
1
RS1
230V
-50Hz
connett. SAux
1
FM
SE
1
GN/YE
BU-BL
BN-MA
B
N-MA
B
U-BL
B
N-MA
B
U-BL
BU-BL
BN-MA
BN-MA
BU-BL
YE-GI
BN-MA
WH-BI
GN-VE
B
N-MA
B
N-MA
B
N-MA
B
U-BL
L
N
BU-BL
BN-MA
BU-BL
BN-MA
SCH
SCH2
JUMPER
J11
J11
A
B
C
D
L
N
TA
1
TA
1
TA
2
TA
2
MP