Bryant 350MAV Installation, Start-Up, And Operating Instructions Manual page 40

TABLE 9—MODEL 350MAV ORIFICE SIZE AND MANIFOLD PRESSURE FOR CORRECT INPUT (CONTINUED)
(TABULATED DATA BASED ON 23,000 BTUH PER BURNER, DERATED 2 PERCENT FOR EACH 1000 FT ABOVE SEA LEVEL)
ALTITUDE AVG GAS
RANGE HEAT VALUE
(FT) (BTU/CU FT)
725
750
775
800
4001
825
to
850
5000
875
900
925
950
ALTITUDE AVG GAS
RANGE HEAT VALUE
(FT) (BTU/CU FT)
700
725
750
775
800
825
5001
to 850
6000
875
900
925
950
975
1000
ALTITUDE AVG GAS
RANGE HEAT VALUE
(FT) (BTU/CU FT)
650
675
700
725
6001
750
to
775
7000
800
825
850
875
*Orifice numbers shown in shading are factory installed.
FOR USE WITH 140 THROUGH 120 SIZE FURNACES ONLY
0.58 0.60
Orifice Manifold Orifice
no. Pressure no.
41 3.6 41
42 3.7 42
42 3.5 42
42 3.3 42
42 3.7 42
43 3.5 43
43 3.3 43
43 3.1 43
43 3.0 43
43 2.8 43
0.58 0.60
Orifice Manifold Orifice
no. Pressure no.
41 3.5 41
42 3.7 42
42 3.4 42
42 3.2 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 2.5 43
43 2.3 43
0.58 0.60
Orifice Manifold Orifice
no. Pressure no.
41 3.8 40
41 3.5 41
42 3.6 42
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 2.8 43
SPECIFIC GRAVITY OF NATURAL GAS
0.62
Manifold Orifice Manifold
Pressure no. Pressure
3.7 41 3.8
3.8 41 3.6
3.6 42 3.7
3.4 42 3.5
3.2 42 3.3
3.6 43 3.8
3.4 43 3.6
3.3 43 3.4
3.1 43 3.2
3.9 43 3.0
SPECIFIC GRAVITY OF NATURAL GAS
0.62
Manifold Orifice Manifold
Pressure no. Pressure
3.7 41 3.8
3.8 41 3.5
3.5 42 3.7
3.3 42 3.4
3.8 42 3.2
3.6 43 3.7
3.4 43 3.5
3.2 43 3.3
3.0 43 3.1
2.8 43 2.9
2.7 43 2.8
2.6 43 2.6
2.4 43 2.5
SPECIFIC GRAVITY OF NATURAL GAS
0.62
Manifold Orifice Manifold
Pressure no. Pressure
3.6 40 3.7
3.6 41 3.7
3.7 41 3.5
3.5 42 3.6
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
—40—
0.64 0.66
Orifice Manifold Orifice
no. Pressure no.
40 3.6 40
41 3.7 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 3.3 43
43 3.1 43
0.64 0.66
Orifice Manifold Orifice
no. Pressure no.
40 3.6 40
41 3.6 41
42 3.8 41
42 3.5 42
42 3.3 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
0.64 0.66
Orifice Manifold Orifice
no. Pressure no.
40 3.8 39
40 3.6 40
41 3.6 41
42 3.7 42
42 3.5 42
42 3.3 42
43 3.7 43
43 3.5 43
43 3.3 43
43 3.1 43
Manifold
Pressure
3.8
3.8
3.6
3.7
3.5
3.3
3.8
3.6
3.4
3.2
Manifold
Pressure
3.7
3.8
3.5
3.7
3.4
3.2
3.7
3.5
3.3
3.1
3.0
2.8
2.7
Manifold
Pressure
3.7
3.7
3.7
3.8
3.6
3.4
3.8
3.6
3.4
3.2