TABLE 9—MODEL 330AAV 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
625
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
650
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
675
47
3.7/1.6
45
3.2/1.4
45
3.3/1.4
45
3.4/1.4
45
3.5/1.5
7001
700
47
3.4/1.4
47
3.5/1.5
47
3.7/1.5
45
3.2/1.3
45
3.3/1.4
725
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
to
750
48
3.4/1.4
48
3.5/1.5
48
3.6/1.5
48
3.8/1.6
47
3.4/1.4
775
49
3.7/1.6
48
3.3/1.4
48
3.4/1.4
48
3.5/1.5
48
3.6/1.5
8000
800
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
825
49
3.3/1.4
49
3.4/1.4
49
3.5/1.5
49
3.6/1.5
49
3.8/1.6
850
50
3.7/1.6
50
3.8/1.6
49
3.3/1.4
49
3.4/1.4
49
3.5/1.5
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
600
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
625
47
3.7/1.6
45
3.2/1.4
45
3.3/1.4
45
3.4/1.4
45
3.5/1.5
8001
650
47
3.4/1.4
47
3.5/1.5
47
3.6/1.5
45
3.2/1.3
45
3.3/1.4
675
48
3.6/1.5
48
3.7/1.6
48
3.8/1.6
47
3.5/1.5
47
3.6/1.5
to
700
48
3.3/1.4
48
3.5/1.5
48
3.6/1.5
48
3.7/1.6
48
3.8/1.6
725
49
3.7/1.5
49
3.8/1.6
48
3.3/1.4
48
3.4/1.5
48
3.5/1.5
9000
750
49
3.4/1.4
49
3.5/1.5
49
3.7/1.5
49
3.8/1.6
48
3.3/1.4
775
50
3.8/1.6
49
3.3/1.4
49
3.4/1.4
49
3.5/1.5
49
3.6/1.5
800
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
575
47
3.7/1.6
45
3.2/1.4
45
3.3/1.4
45
3.4/1.4
45
3.5/1.5
600
47
3.4/1.4
47
3.5/1.5
47
3.6/1.5
47
3.7/1.6
45
3.2/1.4
9001
625
48
3.6/1.5
48
3.7/1.6
48
3.8/1.6
47
3.5/1.5
47
3.6/1.5
650
48
3.3/1.4
48
3.4/1.4
48
3.5/1.5
48
3.6/1.5
48
3.7/1.6
to
675
49
3.6/1.5
49
3.7/1.6
49
3.8/1.6
48
3.4/1.4
48
3.5/1.5
700
49
3.3/1.4
49
3.4/1.5
49
3.6/1.5
49
3.7/1.6
49
3.8/1.6
10,000
725
50
3.7/1.6
50
3.8/1.6
49
3.3/1.4
49
3.4/1.4
49
3.5/1.5
750
50
3.4/1.5
50
3.6/1.5
50
3.7/1.6
50
3.8/1.6
49
3.3/1.4
775
51
3.8/1.6
50
3.3/1.4
50
3.4/1.5
50
3.5/1.5
50
3.7/1.5
* For 060135 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—
