Bryant 355MAV EN User Manual
Page 39
TABLE 12—MODEL 355MAV 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 2% 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
725
43
3.7/1.5
43
3.8/1.6
42
3.2/1.4
42
3.3/1.4
42
3.4/1.4
750
43
3.4/1.4
43
3.5/1.5
43
3.7/1.5
43
3.8/1.6
42
3.2/1.4
775
44
3.7/1.6
44
3.8/1.6
43
3.4/1.4
43
3.5/1.5
43
3.7/1.5
4001
800
44
3.5/1.5
44
3.6/1.5
44
3.7/1.6
44
3.8/1.6
43
3.4/1.4
825
44
3.2/1.4
44
3.4/1.4
44
3.5/1.5
44
3.6/1.5
44
3.7/1.6
to
850
45
3.7/1.6
45
3.8/1.6
44
3.3/1.4
44
3.4/1.4
44
3.5/1.5
875
45
3.5/1.5
45
3.6/1.5
45
3.7/1.6
44
3.2/1.3
44
3.3/1.4
5000
900
45
3.3/1.4
45
3.4/1.4
45
3.5/1.5
45
3.6/1.5
45
3.8/1.6
925
47
3.7/1.6
45
3.2/1.4
45
3.3/1.4
45
3.4/1.5
45
3.6/1.5
950
47
3.5/1.5
47
3.6/1.5
45
3.2/1.3
45
3.3/1.4
45
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
700
43
3.6/1.5
43
3.7/1.6
42
3.2/1.3
42
3.3/1.4
42
3.4/1.4
725
43
3.4/1.4
43
3.5/1.5
43
3.6/1.5
43
3.7/1.6
43
3.8/1.6
750
44
3.6/1.5
44
3.7/1.6
43
3.4/1.4
43
3.5/1.5
43
3.6/1.5
775
44
3.4/1.4
44
3.5/1.5
44
3.6/1.5
44
3.7/1.6
43
3.4/1.4
5001
800
44
3.2/1.3
44
3.3/1.4
44
3.4/1.4
44
3.5/1.5
44
3.6/1.5
825
45
3.6/1.5
45
3.7/1.6
44
3.2/1.4
44
3.3/1.4
44
3.4/1.4
to
850
45
3.4/1.4
45
3.5/1.5
45
3.6/1.5
45
3.8/1.6
44
3.2/1.4
875
45
3.2/1.4
45
3.3/1.4
45
3.4/1.5
45
3.6/1.5
45
3.7/1.5
6000
900
47
3.6/1.5
47
3.7/1.6
45
3.3/1.4
45
3.4/1.4
45
3.5/1.5
925
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
950
48
3.7/1.6
48
3.8/1.6
47
3.5/1.5
47
3.6/1.5
47
3.7/1.6
975
48
3.5/1.5
48
3.6/1.5
48
3.8/1.6
47
3.4/1.4
47
3.5/1.5
1000
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
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
650
42
3.2/1.3
42
3.3/1.4
42
3.4/1.4
42
3.5/1.5
42
3.6/1.5
675
43
3.6/1.5
43
3.7/1.6
43
3.8/1.6
42
3.2/1.4
42
3.3/1.4
700
44
3.8/1.6
43
3.4/1.5
43
3.6/1.5
43
3.7/1.6
43
3.8/1.6
6001
725
44
3.6/1.5
44
3.7/1.6
44
3.8/1.6
43
3.4/1.4
43
3.5/1.5
750
44
3.3/1.4
44
3.4/1.5
44
3.6/1.5
44
3.7/1.6
44
3.8/1.6
to
775
45
3.8/1.6
44
3.2/1.4
44
3.3/1.4
44
3.4/1.5
44
3.5/1.5
800
45
3.5/1.5
45
3.7/1.5
45
3.8/1.6
44
3.2/1.4
44
3.3/1.4
7000
825
45
3.3/1.4
45
3.4/1.5
45
3.6/1.5
45
3.7/1.6
45
3.8/1.6
850
47
3.7/1.6
45
3.2/1.4
45
3.4/1.4
45
3.5/1.5
45
3.6/1.5
875
47
3.5/1.5
47
3.6/1.5
45
3.2/1.3
45
3.3/1.4
45
3.4/1.4
—39—