Burnham Independence Operating And Service Instructions page 6

Gas - fired boiler
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Table 1: Trim and Control Installation in Section Tappings
i S
e z
S
e t
a
m
B
a T
p
p
n i
g
(
N
P
) T
. L
A
2
B
B
½
P
e r
s s
C
½
G
a
D
2
" 3
N
p i
p
e l
E
¾
S
a
e f
y t
B
s u
h
o t
F
2
a
n
/ d
r o
O
F
a
c
o t
y r
G
2
O
t p
o i
n
l a
R
e
q
i u
e r
d
B
s u
h
o t
H
¾
J
¾
N
t o
K
¾
L
o
w
F
a
c
o t
L
1
S
r u
a f
F
a
c
o t
M
1
¼
l A
a i l
F
a
c
o t
N
1
¼
A
l l
a i
F
a
c
o t
P
¾
A
l l
a i

Figure 2: Section Tappings
o
l i
r e
i w
h t
P
o r
b
e
S
e t
a
m
W
C .
.
O
.
F
o l
t a
S
u
p
p
y l
s u
h
o t
¼
u
e r
G
a
u
g
e
N
p i
p
e l
&
u
g
e
G
a l
s s
. L
W
C .
.
O
S
p y
h
R
e
u t
n r
&
t S
e r
t e
E
b l
o
w
" 3
N
p i
p
e l
R
i l e
f e
V
l a
e v
S
a
e f
y t
¾
D
a r
n i
V
l a
e v
B
s u
h
o t
t p
o i
n
l a
R
e
u t
n r
a
n
/ d
r o
O
P
u l
g
g
e
d
(
N I
- 3
) 6
F
a
c
o t
y r
P
S
u
p
p
y l
(
N I
- 3
) 6
O
t p
o i
n
l a
S
u
p
p
y l
(
N I
7
1 -
) 2
R
e
q
i u
e r
d
¼
&
S
p y
h
o
n
B
i L
m
t i
P
e r
s s
A
p
p
c i l
a
b
e l
N
t o
W
t a
r e
C
u
o t
f f
y r
P
u l
g
g
e
d
F
a
c
o t
c
e
B
o l
w
-
O
f f
S
r u
a f
y r
P
u l
g
g
e
d
F
a
c
o t
c n
e
R
e
u t
n r
l A
a i l
y r
P
u l
g
g
e
d
F
a
c
o t
c n
e
S
u
p
p
y l
A
l l
a i
y r
P
u l
g
g
e
d
F
a
c
o t
c n
e
i L
m
t i
A
l l
a i
B
o
l i
r e
i w
h t
W
. L
W
C .
.
O
.
S
u
p
p
y l
P
u l
g
½
U
n
o i
n
G
a
u
g
, e
P
u l
g
L
o
.
t S
e r
t e
E
b l
o
, w
o t
¼
o
n
&
i L
m
t i
P
e r
s s
B
s u
h
o t
R
e
u t
n r
" 2
N
p
G
a
k s
e
, t
&
t S
e r
t e
E
b l
o
w
" 3
N
p i
p
R
i l e
f e
V
l a
e v
S
a
e f
¾
D
a r
n i
V
l a
e v
B
s u
h
o t
¾
t p
o i
n
l a
R
e
u t
n r
O
t p
o i
n
u l
g
g
e
d
(
N I
- 3
) 6
F
a
c
o t
y r
S
u
p
p
y l
(
N I
- 3
) 6
P
S
u
p
p
y l
(
N I
7
1 -
) 2
O
t p
o i
n
s u
h
o t
¼
u
e r
G
a
u
g
e
A
p
p
c i l
a
b
e l
N
t o
P
u l
g
y r
P
u l
g
g
e
d
F
a
c
c
e
B
o l
w
-
O
f f
y r
P
u l
g
g
e
d
F
a
c
c n
e
R
e
u t
n r
y r
P
u l
g
g
e
d
F
a
c
c n
e
S
u
p
p
y l
y r
P
u l
g
g
e
d
F
a
c
c n
e
i L
m
t i
W
t a
r e
t a
r e
B
o
l i
r e
S
u
p
p
y l
P
u l
g
w
r e
a T
p
p
n i
g
B
s u
h
P
u l
g
L
U
p
p
r e
a T
p
p
n i
g
/ .
e T
m
. p
G
a
u
g
e
P
1
½
,
" 3
N
p
, l
E
b l
o
, w
B
s u
h
, l
C
r i
. c
F
a l
n
g
, e
" 2
i C
c r
l u
t a
r o
R
e
u t
n r
G
a
k s
e l
&
t S
e r
t e
E
b l
o
w
" 3
N
y t
R
i l e
f e
V
l a
e v
S
D
a r
n i
V
l a
e v
a
n
/ d
r o
B
s u
h
o t
l a
G
a r
i v
y t
R
e
u t
n r
O
t p
P
u l
g
g
e
d
(
N I
- 3
) 6
F
a
c
u l
g
(
N I
7
1 -
) 2
l a
G
a r
i v
y t
S
u
p
p
y l
O
t p
W
l l e
i L
m
t i
A
p
p
c i l
a
b
e l
P
u l
g
o t
y r
P
u l
g
g
e
d
o t
y r
P
u l
g
g
e
d
o t
y r
P
u l
g
g
e
d
o t
y r
P
u l
g
g
e
d
B
o
l i
r e
i w
h t
a T
k n
e l
s s
H
e
t a
r e
S
u
p
p
y l
P
u l
g
o
w
r e
a T
p
p
n i
g
B
s u
h
o t
¼
U
p
p
r e
a T
p
p
n i
g
e r
s s
/ .
e T
m
. p
G
a
u
g
e
o t
1
½
,
" 3
N
p
, l
E
b l
o
, w
N
p
, l
C
r i
. c
F
a l
n
g
, e
e
, t
i C
c r
l u
t a
r o
R
e
u t
n r
p i
p
e l
&
t S
e r
t e
E
b l
o
w
a
e f
y t
R
i l e
f e
V
l a
e v
¾
D
a r
n i
V
l a
e v
a
n
/ d
r o
o i
n
l a
G
a r
i v
y t
R
e
u t
n r
o t
y r
P
u l
g
g
e
d
(
N I
- 3
) 6
P
u l
g
(
N I
7
1 -
) 2
o i
n
l a
G
a r
i v
y t
S
u
p
p
y l
W
l l e
i L
m
t i
a T
k n
e l
s s
H
e
t a
r e
P
u l
g
F
a
c
o t
y r
P
u l
g
g
e
d
F
a
c
o t
y r
P
u l
g
g
e
d
F
a
c
o t
y r
P
u l
g
g
e
d
F
a
c
o t
y r
P
u l
g
g
e
d

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