Bryant 330AAV Installation, Start-Up, And Operating Instructions Manual page 19

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
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 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.
DERATED 4% FOR EACH 1000 FT ABOVE SEA LEVEL)*
0.58 0.60
Manifold
Orifice Orifice
Pressure
No. No.
High/Low
45 3.6/1.5 45
45 3.3/1.4 45
47 3.7/1.6 45
47 3.4/1.4 47
48 3.6/1.5 48
48 3.4/1.4 48
49 3.7/1.6 48
49 3.5/1.5 49
49 3.3/1.4 49
50 3.7/1.6 50
0.58 0.60
Manifold
Orifice Orifice
Pressure
No. No.
High/Low
45 3.4/1.4 45
47 3.7/1.6 45
47 3.4/1.4 47
48 3.6/1.5 48
48 3.3/1.4 48
49 3.7/1.5 49
49 3.4/1.4 49
50 3.8/1.6 49
50 3.6/1.5 50
0.58 0.60
Manifold
Orifice Orifice
Pressure
No. No.
High/Low
47 3.7/1.6 45
47 3.4/1.4 47
48 3.6/1.5 48
48 3.3/1.4 48
49 3.6/1.5 49
49 3.3/1.4 49
50 3.7/1.6 50
50 3.4/1.5 50
51 3.8/1.6 50
—19—
SPECIFIC GRAVITY OF NATURAL GAS
0.62
Manifold Manifold
Orifice
Pressure Pressure
No.
High/Low High/Low
3.7/1.6 44 3.2/1.3
3.5/1.5 45 3.6/1.5
3.2/1.4 45 3.3/1.4
3.5/1.5 47 3.7/1.5
3.8/1.6 47 3.4/1.4
3.5/1.5 48 3.6/1.5
3.3/1.4 48 3.4/1.4
3.6/1.5 49 3.8/1.6
3.4/1.4 49 3.5/1.5
3.8/1.6 49 3.3/1.4
SPECIFIC GRAVITY OF NATURAL GAS
0.62
Manifold Manifold
Orifice
Pressure Pressure
No.
High/Low High/Low
3.5/1.5 45 3.6/1.5
3.2/1.4 45 3.3/1.4
3.5/1.5 47 3.6/1.5
3.7/1.6 48 3.8/1.6
3.5/1.5 48 3.6/1.5
3.8/1.6 48 3.3/1.4
3.5/1.5 49 3.7/1.5
3.3/1.4 49 3.4/1.4
3.7/1.6 50 3.8/1.6
SPECIFIC GRAVITY OF NATURAL GAS
0.62
Manifold Manifold
Orifice
Pressure Pressure
No.
High/Low High/Low
3.2/1.4 45 3.3/1.4
3.5/1.5 47 3.6/1.5
3.7/1.6 48 3.8/1.6
3.4/1.4 48 3.5/1.5
3.7/1.6 49 3.8/1.6
3.4/1.5 49 3.6/1.5
3.8/1.6 49 3.3/1.4
3.6/1.5 50 3.7/1.6
3.3/1.4 50 3.4/1.5
0.64 0.66
Manifold
Orifice Orifice
Pressure
No. No.
High/Low
44 3.3/1.4 44
45 3.7/1.6 45
45 3.4/1.4 45
45 3.2/1.3 45
47 3.5/1.5 47
48 3.8/1.6 47
48 3.5/1.5 48
48 3.3/1.4 48
49 3.6/1.5 49
49 3.4/1.4 49
0.64 0.66
Manifold
Orifice Orifice
Pressure
No. No.
High/Low
45 3.7/1.6 45
45 3.4/1.4 45
45 3.2/1.3 45
47 3.5/1.5 47
48 3.7/1.6 48
48 3.4/1.5 48
49 3.8/1.6 48
49 3.5/1.5 49
49 3.3/1.4 49
0.64 0.66
Manifold
Orifice Orifice
Pressure
No. No.
High/Low
45 3.4/1.4 45
47 3.7/1.6 45
47 3.5/1.5 47
48 3.6/1.5 48
48 3.4/1.4 48
49 3.7/1.6 49
49 3.4/1.4 49
50 3.8/1.6 49
50 3.5/1.5 50
Manifold
Pressure
High/Low
3.4/1.4
3.8/1.6
3.5/1.5
3.3/1.4
3.6/1.5
3.4/1.4
3.6/1.5
3.4/1.4
3.8/1.6
3.5/1.5
Manifold
Pressure
High/Low
3.8/1.6
3.5/1.5
3.3/1.4
3.6/1.5
3.8/1.6
3.5/1.5
3.3/1.4
3.6/1.5
3.4/1.4
Manifold
Pressure
High/Low
3.5/1.5
3.2/1.4
3.6/1.5
3.7/1.6
3.5/1.5
3.8/1.6
3.5/1.5
3.3/1.4
3.7/1.5