Bryant 383KAV Installation, Start-Up, And Operating Instructions Manual page 14

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TABLE 6—MODEL 383KAV ORIFICE SIZE* AND MANIFOLD PRESSURE FOR CORRECT INPUT
(Tabulated Data Based on 22,000 Btuh per Burner, Derated 4 Percent per 1000 Ft Above Sea Level)
AVG GAS
ALTITUDE
HEAT VALUE
RANGE
AT ALTITUDE
(FT)
(BTU/CU FT)
850
875
900
0
925
950
to
975
1000
2000
1025
1050
1075
1100
AVG GAS
ALTITUDE
HEAT VALUE
RANGE
AT ALTITUDE
(FT)
(BTU/CU FT)
U.S.A.
775
Altitudes
800
2001
825
to
850
3000
875
or
900
Canada
925
Altitudes
950
2000
975
to
1000
4500
1025
AVG GAS
ALTITUDE
HEAT VALUE
RANGE
AT ALTITUDE
(FT)
(BTU/CU FT)
750
775
800
3001
825
850
to
875
900
4000
925
950
975
1000
AVG GAS
ALTITUDE
HEAT VALUE
RANGE
AT ALTITUDE
(FT)
(BTU/CU FT)
725
750
775
4001
800
825
to
850
875
5000
900
925
950
* Orifices sizes shown in BOLD 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
—14—
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
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

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