Features and technical data
Installation, use and maintenance manual – Next-G
19
1
1.4.2
EC models
Figure 1.12
Electrical wiring diagram
AC
Ig
nition
elec
trodes
GV
Gas solenoid v
alv
e
RLZ
F
lame
sensor
S
Limit t
emper
atur
e pr
obe
SA
Room
pr
obe
SCH
E
lec
tronic
boar
d
SF
Blo
w
er
STF
Flue gas t
emper
atur
e pr
obe
TL
Limit
ther
mosta
t
TR
Ig
nition
transf
or
mer
V1-
V2
Fan
1
4
TR
AC
RLZ
1
GV
1
1
1
TL
1
1
4
VL1
VN1
1
L
N
GN/YE
PE
N
L
T/ERR
+10VDC
GND
0-10V
VL2
VN2
V2
~
GND
N
L
N
L
MA-B
N
BL-
BU
GN/YE
MA-B
N
BL-
BU
GN/YE
BI/WH
BI/WH
B
I-W
H
V
I-
V
T
RO-RD A
R-OG
MA
-B
N
BL
-BU
MA
-B
N
B
L-B
U
B
L-B
U
MA
-B
N
B
I-W
H
GR
-GY
NE-BK MA
-B
N
B
L-
B
U
GN/YE
MA
-B
N
B
L-
B
U
GN/YE
GN/YE
B
L-B
U
MA
-B
N
V1
1
1
1
1
1
1
P.E.
N
L
L
N
AUX
OUT
+
-
ALARM
C
NO
NC
SHLD
GND
6.3AT 250V
F1
J70
J62
J63
J74
J33
J32
J71
J34
VENT
.
HEA
T.
RESET
L
N
AUX
OUT
Tamb1
Tamb2
Text
+
-
0-10V
ALARM
C
NO
NC
RS485
A
B
J61
J30
J60
J20
J72
1
1
230V - 50 Hz
N
SF
~
L
1
5
N
SF
L
1
5
~
Next-G 75-90
Next-G
20-30-35-45-60
GN/YE
PE
N
L
+10VDC
GND
0-10V
MA
-B
N
B
L-B
U
B
L-B
U
MA
-B
N
RS A
RS B
Next
-G
20-30-35-75
Next
-G
45-60-90
STF
S
GI-YE
GI-YE
BI-W
H
BI-W
H
SCH
SA