64 Appendices
12.3 Wiring Diagram
D
H
W
Fl
ow
Sens
or
CI
RC
UL
A
T
IO
N
PU
M
P
Wa
te
r P
re
s
s
u
re
S
e
n
s
o
r
FR
O
N
T PA
N
E
L
R
Bk
Bk
Bk
Bk
Bk
Bk
Bk
Bk
CO
N10
19
Y
W
B
R
BK
3-
W
A
Y
VA
L
V
E
1
3
5
7
2
4
6
8
W
O
Bk
R
Y
FA
N
Y
W
.
'
&
[
0
9
RS
232
14
CO
NK
1
CO
NZ
1
17
C
A
PAC
IT
O
R
Ov
e
r h
e
a
t
sw
it
c
h
D
H
W
In
le
t Te
m
p
.
S
e
n
s
or
D
H
W Ou
tl
e
t Te
m
p
. S
e
ns
o
r,
D
H
W
E
X
T Ta
nk
Te
m
p
.S
e
n
s
o
r
H
E
A
T
IN
G
S
u
pp
ly
Te
m
p
. S
e
ns
o
r
HE
AT
IN
G
Re
tu
rn
T
emp
. S
e
n
s
o
r
B B
B B B B B B
E
x
ha
u
s
t T
e
m
p
.
S
e
ns
o
r
B B
C
O
L
O
R CO
D
E
B
: B
lu
e
BK
: B
la
c
k
BR
: B
ro
w
n
O
: O
range
R
: Re
d
W
: W
h
it
e
Y
: Y
e
llo
w
YG
: Y
e
llo
w
G
re
e
n
P
: Pu
rp
le
A
ir
Pr
essu
re
Sens
or
(D
ua
l hal
l sensor
s
)
R
BK
W
Y
R YG BK
R
BK
W
BK
BK
CO
N
Z
1
16
F
L
AM
E RO
D
IG
NI
T
E
R
BUR
N
ER
BR
B
T2
O
p
erat
io
n
La
m
p
GR
OU
ND
(P
.E
.)
YG
CO
L
D
(N
E
U
T
R
A
L
)
CO
NU1
Op
e
n
T
h
e
rm
,
Ro
om
S
tat
Cy
linder
S
tat
Ou
td
o
o
r
te
m
p
.
s
e
ns
or
T1
CO
N25
CO
NW
1
Bk
HO
T
(L
IV
E
)
W
YG
M
DUA
L
VE
NTU
R
I
B
W
BR
CO
N1
CO
N26
230V
A
C
Room
S
tat
Summary of Contents for NCB-24LDWE
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