IM 685-1
25
T
abl
e 5.
(1
)
(2)
(3
)
(4)
(5
)
(6)
(7
)
(8)
(9
)
(10
)
(1
1
)
(12
)
(13
)
(14
)
(15
)
Bu
rn
e
r
Mo
de
l
No
.
In
put
MB
H
or
C
F
H
No
te
3
F
u
rn
ace
A
ir
P
re
ssu
re
(
In.
W
.C
.)
G
a
s
P
res
su
re
(in
. W
.C
.)
Bu
rn
e
r
R
unn
ing
Cu
rr
e
n
t
Am
p
s
Ga
s C
o
nn
ec
tio
n
S
ize (
IP
)
In
B
o
x
Meas
ur
ed:
A
t P
o
rt
4
In
V
a
lv
e
At
Po
rt
5
Ma
nif
o
ld
Me
asur
e
a
t T
a
p (1
)
Sup
p
ly
Li
n
e
M
easu
re
@
Ta
p
(
2
)
No
te
1
, 2
In
le
t P
res
su
re
(P
S
I)
@
M
ax.
Ra
te
@ Mi
n
.
Ra
te
No
te
4
Mi
n
.
CF
M
Ma
x.
TR
De
g
F
Du
ri
n
g
P
re
pur
ge
@
Max
. R
a
te
Bu
rn
e
r
Op
er
at
ing
@
Max
. R
a
te
Du
ri
n
g
P
rep
ur
ge
@
Max
. R
a
te
@ Ma
x
.
Ra
te
@ M
in.
Ra
te
No
te
5
To
0
.5
2 —
3
No
te
2
5 —
10
No
te
2
H
T
020
25
0
12.
5
2
,3
00
80
1.5
9
1.4
8
3.8
0
3.0
1
3.1
2
4.
5
3
.4
0.7
5
0.7
5
0.7
5
H
T
025
31
2
15.
6
3
,8
00
61
1.9
5
1.9
5
3.7
1
3.4
6
3.5
5
5.
5
3
.5
0.7
5
0.7
5
0.7
5
HT
032
40
0
20.
0
2
,9
50
10
0
2
.3
0
2
.3
4
3
.5
0
2
.9
4
3
.2
1
6
.0
3.
5
0
.7
5
0
.7
5
0
.7
5
H
T
040
50
0
25.
0
6
,0
00
61
2.6
9
2.7
4
3.2
9
4.1
4
4.3
9
5.
0
3
.6
1.0
0
1.0
0
1.0
0
HT
050
62
5
31.
3
4
,6
00
10
0
2
.4
3
2
.4
9
3
.4
2
2
.9
8
3
.2
5
5
.5
3.
6
1
.0
0
1
.0
0
1
.0
0
H
T
064
80
0
40.
0
9
,6
00
61
2.0
4
2.1
5
3.5
0
2.8
6
3.2
2
7.
0
3
.8
1.2
5
1.2
5
1.2
5
HT
065
81
2
40.
6
5
,9
70
10
0
1
.6
2
1
.5
5
3
.4
4
2
.8
9
3
.3
3
7
.0
3.
8
1
.2
5
1
.2
5
1
.2
5
HT
079
100
0
50.
0
1
2,0
0
0
6
1
1
.6
2
1
.6
4
3
.6
6
3
.4
5
3
.8
4
6
.5
4.
0
1
.2
5
1
.2
5
1
.2
5
HT
080
100
0
50.
0
7
,3
40
10
0
1
.4
5
1
.4
0
3
.4
8
3
.1
4
3
.4
5
6
.5
4.
0
1
.2
5
1
.2
5
1
.2
5
HT
100
125
0
62.
5
1
5,0
0
0
6
1
1
.6
3
2
.0
9
4
.6
0
3
.2
0
3
.7
2
6
.5
7.
5
1
.2
5
1
.2
5
1
.2
5
H
T
1
1
0
137
5
68.
8
1
0,1
0
0
1
0
0
2.5
0
2.6
0
4.4
5
2.9
0
3.5
0
5.
0
7
.8
1.5
0
1.2
5
1.2
5
HT
140
175
0
87.
5
2
1,0
0
0
6
1
2
.2
5
2
.4
5
4
.4
5
2
.8
0
3
.3
0
5
.0
7.
8
1
.5
0
1
.2
5
1
.2
5
H
T
150
187
5
93.
8
1
3,7
0
0
1
0
0
2.3
2
2.5
0
4.5
0
3.1
0
3.6
0
5.
0
8
.4
1.5
0
1.2
5
1.2
5
H
T
200
250
0
125
.0
3
0
,0
00
61
2.6
0
3.6
5
4.9
0
3.7
0
4.1
0
6.
0
1
1.
2
2
.0
0
1
.5
0
1
.2
5
No
te
s
:
1
.
P
ressu
re
to o
b
ta
in
1
00%
i
n
put
w
it
h
stan
dar
d U
L
g
a
s t
rain
. F
o
r IRI,
F
M
, E
tc.
add
1.0
0
in
. W
.C.
2.
Ga
s
i
n
le
t pr
es
s
u
re
s
ov
e
r 0
.50
P
S
I (1
3.
9
i
n
. W
.C
.,
8
oz
./
s
q.
i
n
.)
re
q
u
ir
e a
n
a
d
d
it
io
na
l hi
gh
pr
es
s
u
re
re
gu
la
to
r.
3
.
CF
H o
f n
a
tu
ra
l g
a
s @
1
0
0
0
BT
U/cu
. ft.
4
.
A
t
minim
u
m
fir
in
g
r
a
te
th
e M
B
H
sho
u
ld b
e
9
0
t
o
1
0
0
%
of th
is
va
lue.
5
.
T
h
is
i
s
ap
pro
x
im
a
te.
A
hi
gh
er
re
adi
n
g
i
n
d
icate
s
mul
ti
p
le
v
a
lv
es
are
no
t i
n
bal
a
n
ce
. S
e
e
sect
ion o
n
"G
a
s
V
a
lve
Pr
e
s
su
re
Re
g
u
la
to
r
Ad
ju
st
m
e
n
t".
Ke
y
:
(1
)
G
as
Ma
nifo
ld
P
re
ssur
e
T
a
p (
1
/8
inch
l.P
.)
(2
)
Gas
Line
P
re
ssur
e
T
a
p (
1
/8
inch
l.P
.)
(3
)
G
a
s
Pr
e
s
su
re
Re
g
u
la
to
r
A
d
ju
stm
e
n
t
(4
)
B
u
rn
e
r Bo
x
Air
P
re
s
s
u
re
Po
rt
(5
)
A
ir
V
a
lv
e
Pr
e
s
s
u
re
Po
rt
(
O
n
Bo
x
Bo
tt
o
m
)
(6
)
F
ir
ing
Rate
Ind
icato
r S
c
a
le
(7
)
O
pt
iona
l A
ddi
ti
o
n
a
l Gas
V
a
lv
e(
s)
(8
)
O
p
tio
n
a
l Hig
h
Pr
e
s
su
re
Re
g
u
la
to
r
(9
)
O
pt
iona
l Lo
w
Ga
s P
res
sure
S
w
it
ch
(10)
Opt
iona
l H
ig
h
Gas
P
res
sure
S
w
it
ch
(1
1
)
Co
m
b
in
a
tio
n
Ga
s Co
n
tr
o
l
(12)
S
hou
lder
S
c
re
w
A
tta
chi
n
g
B
u
sh
ing
T
o
C
ran
karm
5
FS
G
SUPER
M
O
D
8
9
7
3
2
11
10
1
12
6
4
F
igu
re
16
b
.
F
igur
e
16a.
Capacities and Adjustments
Summary of Contents for SuperMod IM-685-1
Page 27: ...IM 685 1 27 Notes ...