Bryant 350MAV Installation, Start-Up, And Operating Instructions Manual page 37

→ TABLE 8—MODEL 350MAV ORIFICE SIZE AND MANIFOLD PRESSURE FOR CORRECT INPUT
(TABULATED DATA BASED ON 20,000 BTUH PER BURNER, DERATED 2% FOR EACH 1000 FT ABOVE SEA LEVEL)
AVG GAS
ALTITUDE
HEAT VALUE
RANGE
AT ALTITUDE
(FT)
(BTU/CU FT)
625
650
675
7001 700
725
to 750
775
8000 800
825
850
AVG GAS
ALTITUDE
HEAT VALUE
RANGE
AT ALTITUDE
(FT)
(BTU/CU FT)
600
625
8001 650
675
to 700
725
9000 750
775
800
AVG GAS
ALTITUDE
HEAT VALUE
RANGE
AT ALTITUDE
(FT)
(BTU/CU FT)
575
600
9001 625
650
to 675
700
10,000 725
750
775
FOR USE WITH 040 THROUGH 120 SIZE FURNACES ONLY
0.58 0.60
Orifice Manifold Orifice
No. Pressure No.
43 3.8 42
43 3.5 43
44 3.8 43
44 3.5 44
44 3.3 44
45 3.7 45
45 3.5 45
45 3.3 45
45 3.1 45
45 2.9 45
0.58 0.60
Orifice Manifold Orifice
No. Pressure No.
43 3.8 42
43 3.5 43
44 3.7 43
44 3.5 44
44 3.2 44
45 3.6 45
45 3.4 45
45 3.2 45
45 3.0 45
0.58 0.60
Orifice Manifold Orifice
No. Pressure No.
43 3.8 42
43 3.5 43
44 3.7 44
44 3.4 44
45 3.8 44
45 3.6 45
45 3.3 45
45 3.1 45
45 2.9 45
—37—
SPECIFIC GRAVITY OF NATURAL GAS
0.62
Manifold Orifice Manifold
Pressure No. Pressure
3.3 42 3.4
3.7 43 3.8
3.4 43 3.5
3.6 44 3.8
3.4 44 3.5
3.8 44 3.3
3.6 45 3.7
3.4 45 3.5
3.2 45 3.3
3.0 45 3.1
SPECIFIC GRAVITY OF NATURAL GAS
0.62
Manifold Orifice Manifold
Pressure No. Pressure
3.3 42 3.4
3.6 43 3.8
3.4 43 3.5
3.6 44 3.7
3.3 44 3.4
3.8 44 3.2
3.5 45 3.6
3.3 45 3.4
3.1 45 3.2
SPECIFIC GRAVITY OF NATURAL GAS
0.62
Manifold Orifice Manifold
Pressure No. Pressure
3.2 42 3.3
3.6 43 3.7
3.8 43 3.5
3.5 44 3.7
3.3 44 3.4
3.7 45 3.8
3.4 45 3.6
3.2 45 3.3
3.0 45 3.1
Continued
0.64 0.66
Orifice Manifold Orifice
No. Pressure No.
42 3.5 42
42 3.2 42
43 3.6 43
43 3.4 43
44 3.6 44
44 3.4 44
45 3.8 44
45 3.6 45
45 3.4 45
45 3.2 45
0.64 0.66
Orifice Manifold Orifice
No. Pressure No.
42 3.5 42
42 3.2 42
43 3.6 43
44 3.8 43
44 3.6 44
44 3.3 44
45 3.8 44
45 3.5 45
45 3.3 45
0.64 0.66
Orifice Manifold Orifice
No. Pressure No.
42 3.5 42
42 3.2 42
43 3.6 43
44 3.8 43
44 3.5 44
44 3.3 44
45 3.7 45
45 3.4 45
45 3.2 45
Manifold
Pressure
3.6
3.3
3.7
3.5
3.7
3.5
3.3
3.7
3.5
3.3
Manifold
Pressure
3.6
3.3
3.7
3.4
3.7
3.4
3.2
3.6
3.4
Manifold
Pressure
3.6
3.3
3.7
3.4
3.6
3.4
3.8
3.5
3.3