19
5.2.5
Electric connection diagram
.
Legend:
A
1
–
R
e
g
u
lat
o
r
B
R
A
G
E
R
V
E
R
A
B
OR
D
3
6
0
B
1
–
Temp
e
ra
tu
re
s
e
n
s
o
r
TO1
B
2
–
B
o
iler
o
u
tp
u
t
te
mpe
ra
tu
re
s
e
n
s
o
r
B
3
–
D
H
W
h
e
a
ting
s
e
n
s
o
r
B
4
–
S
to
ra
g
e
t
a
n
k
u
p
p
e
r
te
mpe
ra
tu
re
s
e
n
s
o
r
B
8
–
Flue
g
a
s
e
s
t
e
mpe
ra
tu
re
s
e
n
s
o
r
B
9
–
Ou
td
o
o
r
te
mpe
ra
tu
re
s
e
n
s
o
r
B
4
1
–
S
to
ra
g
e
t
a
n
k
low
e
r
te
mpe
ra
tu
re
s
e
n
s
o
r
D
–
C
o
n
tr
o
l
u
n
it
(
d
is
p
la
y
)
B
Tr
–
R
o
o
m
t
h
e
rmo
s
ta
t
T
O1
H
a
ll
–
V
e
n
til
a
to
r
ro
ta
tion
s
p
e
e
d
s
e
n
s
o
r
MV
1
–
B
o
ile
r
e
x
h
a
u
s
t
v
e
n
ti
lat
o
r
Q1
–
S
to
ra
g
e
(
b
o
ile
r)
t
a
n
k
p
u
mp
Q2
–
P
u
mp
TO1
Q3
–
D
o
mes
ti
c
h
o
t
w
a
te
r
(D
H
W
)
p
u
mp
S
1
–
Main
s
w
it
c
h
;
S
1
0
–
S
w
it
c
h
o
f
d
o
o
r
o
p
e
n
ing
s
ig
n
a
liz
a
tion
X
1
0
–
V
e
n
til
a
to
r
p
o
w
e
r
s
u
p
p
ly
c
o
n
n
e
c
to
r
X
1
1
–
V
e
n
til
a
to
r
ro
ta
tion
s
p
e
e
d
s
e
n
s
o
r
c
o
n
n
e
c
to
r
X
1
2
–
C
o
n
n
e
c
tion
o
f
s
w
it
c
h
o
f
d
o
o
r
o
p
e
n
in
g
s
ign
a
liz
a
tion
TR
_
D
IS
P
–
C
o
n
tr
o
l
u
n
it
(
d
is
p
la
y
)
c
o
n
n
e
c
to
r
TR
2
–
A
u
x
iliar
y
mod
u
le
c
o
n
n
e
c
to
r
-+AB
–
C
la
mps
o
f a
ux
ili
ar
y
mod
ul
es
’ c
on
ne
ct
ion
C
o
n
d
u
c
to
r
c
o
lou
r:
g
n
y
e
green
-y
e
llo
w
bk
b
lac
k
bn
b
ro
w
n
bu
b
lue
rd
red
wh
w
h
it
e