20
Fig. no. 12a)
Wiring diagram of 10, 12, 15 sectional VIADRUS G 90 boiler for DUNGS version
C
o
lo
r
m
a
rk
in
g
:
G
N
Y
E
G
re
e
n
-y
e
llo
w
B
K
B
la
c
k
B
N
B
ro
w
n
B
U
B
lu
e
R
D
R
e
d
G
R
G
re
y
E
l.
d
is
tr
ib
u
ti
o
n
b
o
x
A
1
A
u
to
m
a
ti
c
s
–
H
o
n
e
y
w
e
ll
4
5
6
3
B
1
0
1
1
F
1
F
u
s
e
4
A
X
1
0
B
o
ile
r’
s
t
e
rm
in
a
l
p
la
te
Y
1
G
a
s
V
a
lv
e
D
u
n
g
s
M
B
-
Z
R
D
L
E
4
1
2
B
0
1
S
2
2
Z
1
A
n
ti
-i
n
te
rf
e
re
n
c
e
e
le
m
e
n
t
P
S
3
M
in
im
a
l
w
a
te
r
le
v
e
l
g
u
a
rd
S
P
1
M
in
im
a
l
g
a
s
p
re
s
s
u
re
g
u
a
rd
S
P
2
G
a
s
f
la
n
g
e
l
e
a
k
ti
g
h
tn
e
s
s
g
u
a
rd
Q
1
C
ir
c
u
la
ti
n
g
p
u
m
p
X
1
1
,X
1
2
,X
1
3
G
a
s
v
a
lv
e
c
o
n
n
e
c
to
rs
n
e
tw
o
rk
S
m
a
ll
b
u
rn
e
r
I.
s
te
p
I
I.
s
te
p
T
e
rm
in
a
l
p
la
te
c
o
n
s
o
le
Burner
Terminal
plate console
