Bryant 311AAV Series 100 Installation, Start-Up, And Operating Instructions Manual page 19

TABLE 7—MODEL 311AAV ORIFICE SIZE* AND MANIFOLD PRESSURE FOR GAS INPUT RATE
(TABULATED DATA BASED ON 22,000 BTUH PER BURNER, DERATED 4 PERCENT FOR EACH 1000 FT ABOVE SEA LEVEL)
ALTITUDE AVG GAS
RANGE HEAT VALUE
(FT) (BTU/CU FT)
850
875
900
925
950
0
to 975
2000
1000
1025
1050
1075
1100
ALTITUDE AVG GAS
RANGE HEAT VALUE
(FT) (BTU/CU FT)
775
U.S.A. 800
Altitudes
825
2001
850
to
875
3000
or 900
Canada
925
Altitudes
950
2000
975
to
4500 1000
1025
ALTITUDE AVG GAS
RANGE HEAT VALUE
(FT) (BTU/CU FT)
750
775
800
825
850
3001
to 875
4000
900
925
950
975
1000
ALTITUDE AVG GAS
RANGE HEAT VALUE
(FT) (BTU/CU FT)
725
750
775
800
4001
825
to
850
5000
875
900
925
950
* Orifice numbers (43) shown in shading are factory installed.
0.58 0.60
Orifice Manifold Orifice
No. Pressure No.
42 3.6 42
42 3.4 42
42 3.2 42
43 3.7 42
43 3.6 43
43 3.4 43
43 3.2 43
44 3.5 43
44 3.3 44
45 3.8 44
45 3.7 45
0.58 0.60
Orifice Manifold Orifice
No. Pressure No.
42 3.4 42
43 3.8 42
43 3.6 43
43 3.4 43
43 3.2 43
43 3.0 43
43 2.9 43
43 2.7 43
43 2.6 43
43 2.5 43
43 2.3 43
0.58 0.60
Orifice Manifold Orifice
No. Pressure No.
43 3.8 42
43 3.6 43
43 3.4 43
43 3.2 43
43 3.0 43
43 2.8 43
43 2.7 43
43 2.5 43
43 2.4 43
43 2.3 43
43 2.2 43
0.58 0.60
Orifice Manifold Orifice
No. Pressure No.
43 3.6 43
43 3.4 43
43 3.2 43
43 3.0 43
43 2.8 43
43 2.6 43
43 2.5 43
43 2.3 43
43 2.2 43
43 2.1 43
SPECIFIC GRAVITY OF NATURAL GAS
0.62
Manifold Orifice Manifold
Pressure No. Pressure
3.8 41 3.5
3.6 42 3.7
3.4 42 3.5
3.2 42 3.3
3.7 43 3.8
3.5 43 3.6
3.3 43 3.4
3.2 43 3.3
3.4 44 3.6
3.3 44 3.4
3.8 44 3.2
SPECIFIC GRAVITY OF NATURAL GAS
0.62
Manifold Orifice Manifold
Pressure No. Pressure
3.5 42 3.6
3.3 42 3.4
3.7 42 3.2
3.5 43 3.6
3.3 43 3.4
3.1 43 3.2
3.0 43 3.1
2.8 43 2.9
2.7 43 2.8
2.5 43 2.6
2.4 43 2.5
SPECIFIC GRAVITY OF NATURAL GAS
0.62
Manifold Orifice Manifold
Pressure No. Pressure
3.3 42 3.4
3.7 43 3.8
3.5 43 3.6
3.3 43 3.4
3.1 43 3.2
2.9 43 3.0
2.8 43 2.9
2.6 43 2.7
2.5 43 2.6
2.4 43 2.4
2.2 43 2.3
SPECIFIC GRAVITY OF NATURAL GAS
0.62
Manifold Orifice Manifold
Pressure No. Pressure
3.7 42 3.2
3.5 43 3.6
3.3 43 3.4
3.1 43 3.2
2.9 43 3.0
2.7 43 2.8
2.6 43 2.6
2.4 43 2.5
2.3 43 2.4
2.2 43 2.2
—19—
0.64 0.66
Orifice Manifold Orifice
No. Pressure No.
41 3.6 41
42 3.8 41
42 3.6 42
42 3.4 42
42 3.2 42
43 3.7 43
43 3.5 43
43 3.4 43
43 3.2 43
44 3.5 43
44 3.4 44
0.64 0.66
Orifice Manifold Orifice
No. Pressure No.
42 3.7 42
42 3.5 42
42 3.3 42
43 3.8 42
43 3.5 43
43 3.3 43
43 3.2 43
43 3.0 43
43 2.9 43
43 2.7 43
43 2.6 43
0.64 0.66
Orifice Manifold Orifice
No. Pressure No.
42 3.5 42
42 3.3 42
43 3.7 43
43 3.5 43
43 3.3 43
43 3.1 43
43 2.9 43
43 2.8 43
43 2.6 43
43 2.5 43
43 2.4 43
0.64 0.66
Orifice Manifold Orifice
No. Pressure No.
42 3.3 42
43 3.7 43
43 3.5 43
43 3.3 43
43 3.1 43
43 2.9 43
43 2.7 43
43 2.6 43
43 2.4 43
43 2.3 43
Manifold
Pressure
3.7
3.5
3.7
3.5
3.3
3.8
3.6
3.5
3.3
3.2
3.5
Manifold
Pressure
3.8
3.6
3.4
3.2
3.6
3.4
3.3
3.1
2.9
2.8
2.7
Manifold
Pressure
3.6
3.4
3.8
3.6
3.4
3.2
3.0
2.9
2.7
2.6
2.5
Manifold
Pressure
3.4
3.8
3.6
3.4
3.2
3.0
2.8
2.7
2.5
2.4