Table 9—Model 58TUA Orifice Size and Manifold Pressure for Correct Input—Continued
(TABULATED DATA BASED ON 20,000 BTUH HIGH HEAT/13,000 BTUH LOW HEAT PER BURNER
DERATED 4% FOR EACH 1000 FT ABOVE SEA LEVEL)*
ALTITUDE
RANGE
(FT)
AVG GAS
HEAT VALUE
AT ALTITUDE
(BTU/CU FT)
SPECIFIC GRAVITY OF NATURAL GAS
0.58
0.60
0.62
0.64
0.66
Orifice
No.
Manifold
Pressure
High/Low
Orifice
No.
Manifold
Pressure
High/Low
Orifice
No.
Manifold
Pressure
High/Low
Orifice
No.
Manifold
Pressure
High/Low
Orifice
No.
Manifold
Pressure
High/Low
U.S.A.
Only
725
44
3.4/1.4
44
3.5/1.5
44
3.6/1.5
44
3.8/1.6
43
3.4/1.4
750
44
3.2/1.3
44
3.3/1.4
44
3.4/1.4
44
3.5/1.5
44
3.6/1.5
775
45
3.6/1.5
45
3.7/1.6
44
3.2/1.3
44
3.3/1.4
44
3.4/1.4
4001
800
45
3.4/1.4
45
3.5/1.5
45
3.6/1.5
45
3.7/1.6
44
3.2/1.3
825
45
3.2/1.3
45
3.3/1.4
45
3.4/1.4
45
3.5/1.5
45
3.6/1.5
to
850
47
3.6/1.5
47
3.7/1.6
45
3.2/1.4
45
3.3/1.4
45
3.4/1.4
875
48
3.8/1.6
47
3.5/1.5
47
3.6/1.5
47
3.7/1.6
45
3.2/1.4
5000
900
48
3.6/1.5
48
3.8/1.6
47
3.4/1.4
47
3.5/1.5
47
3.6/1.5
925
48
3.4/1.5
48
3.6/1.5
48
3.7/1.6
48
3.8/1.6
47
3.4/1.5
950
49
3.8/1.6
48
3.4/1.4
48
3.5/1.5
48
3.6/1.5
48
3.7/1.6
ALTITUDE
RANGE
(FT)
(FT)
AVG GAS
HEAT VALUE
AT ALTITUDE
(BTU/CU FT)
SPECIFIC GRAVITY OF NATURAL GAS
0.58
0.60
0.62
0.64
0.66
Orifice
No.
Manifold
Pressure
High/Low
Orifice
No.
Manifold
Pressure
High/Low
Orifice
No.
Manifold
Pressure
High/Low
Orifice
No.
Manifold
Pressure
High/Low
Orifice
No.
Manifold
Pressure
High/Low
U.S.A.
Only
700
44
3.2/1.3
44
3.3/1.4
44
3.4/1.4
44
3.5/1.5
44
3.6/1.5
725
45
3.6/1.5
45
3.7/1.6
45
3.8/1.6
44
3.3/1.4
44
3.4/1.4
750
45
3.4/1.4
45
3.5/1.5
45
3.6/1.5
45
3.7/1.6
45
3.8/1.6
775
45
3.2/1.3
45
3.3/1.4
45
3.4/1.4
45
3.5/1.5
45
3.6/1.5
5001
800
47
3.5/1.5
47
3.6/1.5
45
3.2/1.3
45
3.3/1.4
45
3.4/1.4
825
48
3.8/1.6
47
3.4/1.4
47
3.5/1.5
47
3.7/1.5
45
3.2/1.3
to
850
48
3.6/1.5
48
3.7/1.6
48
3.8/1.6
47
3.4/1.5
47
3.5/1.5
875
48
3.4/1.4
48
3.5/1.5
48
3.6/1.5
48
3.7/1.6
48
3.8/1.6
6000
900
49
3.7/1.6
49
3.8/1.6
48
3.4/1.4
48
3.5/1.5
48
3.6/1.5
925
49
3.5/1.5
49
3.6/1.5
49
3.8/1.6
48
3.3/1.4
48
3.4/1.4
950
49
3.3/1.4
49
3.5/1.5
49
3.6/1.5
49
3.7/1.6
49
3.8/1.6
975
50
3.7/1.6
49
3.3/1.4
49
3.4/1.4
49
3.5/1.5
49
3.6/1.5
1000
50
3.6/1.5
50
3.7/1.6
50
3.8/1.6
49
3.3/1.4
49
3.4/1.4
ALTITUDE
RANGE
(FT)
AVG GAS
HEAT VALUE
AT ALTITUDE
(BTU/CU FT)
SPECIFIC GRAVITY OF NATURAL GAS
0.58
0.60
0.62
0.64
0.66
Orifice
No.
Manifold
Pressure
High/Low
Orifice
No.
Manifold
Pressure
High/Low
Orifice
No.
Manifold
Pressure
High/Low
Orifice
No.
Manifold
Pressure
High/Low
Orifice
No.
Manifold
Pressure
High/Low
U.S.A.
Only
650
44
3.2/1.4
44
3.3/1.4
44
3.4/1.4
44
3.5/1.5
44
3.6/1.5
675
45
3.6/1.5
45
3.7/1.6
45
3.8/1.6
44
3.3/1.4
44
3.4/1.4
700
45
3.3/1.4
45
3.5/1.5
45
3.6/1.5
45
3.7/1.6
45
3.8/1.6
6001
725
47
3.7/1.6
45
3.2/1.4
45
3.3/1.4
45
3.4/1.5
45
3.5/1.5
750
47
3.5/1.5
47
3.6/1.5
47
3.7/1.6
45
3.2/1.4
45
3.3/1.4
to
775
48
3.7/1.6
48
3.8/1.6
47
3.5/1.5
47
3.6/1.5
47
3.7/1.6
800
48
3.5/1.5
48
3.6/1.5
48
3.7/1.6
48
3.8/1.6
47
3.5/1.5
7000
825
49
3.8/1.6
48
3.4/1.4
48
3.5/1.5
48
3.6/1.5
48
3.7/1.6
850
49
3.6/1.5
49
3.7/1.6
48
3.3/1.4
48
3.4/1.4
48
3.5/1.5
875
49
3.4/1.4
49
3.5/1.5
49
3.6/1.5
49
3.8/1.6
48
3.3/1.4
* For 135-20 sizes only, input is 19,000 Btuh for high fire. Deduct 0.1-in. from manifold pressure shown in table. Change orifice size if manifold pressure falls below
3.2-in.wc.
18
Summary of Contents for 58TUA
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