Bryant 312AAV - Manual (Page 22)

TABLE 9–MODEL 312AAV GAS ORIFICE SIZE* AND MANIFOLD PRESSURES FOR GAS INPUT RATE (CONTINUED)
(TABULATED DATA BASED ON 22,000 BTUH HIGH-HEAT/14,500 FOR LOW-HEAT PER BURNER,
DERATED 4 PERCENT 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
Orifice
No.
Manifold
Pressure
Orifice
No.
Manifold
Pressure
Orifice
No.
Manifold
Pressure
Orifice
No.
Manifold
Pressure
U.S.A.
Only 5001
to
6000
700 43 3.4/1.5 43 3.5/1.5 43 3.6/1.6 43 3.7/1.6 43 3.8/1.7
725 44 3.6/1.6 43 3.2/1.4 43 3.4/1.5 43 3.5/1.5 43 3.6/1.6
750 44 3.4/1.5 44 3.5/1.5 44 3.6/1.6 43 3.2/1.4 43 3.3/1.5
775 45 3.8/1.7 44 3.3/1.4 44 3.4/1.4 44 3.5/1.5 44 3.6/1.6
800 46 3.8/1.6 45 3.7/1.6 45 3.8/1.7 44 3.3/1.4 44 3.4/1.5
825 46 3.5/1.5 46 3.7/1.6 46 3.8/1.6 45 3.7/1.6 45 3.8/1.7
850 47 3.8/1.6 46 3.4/1.5 46 3.6/1.5 46 3.7/1.6 46 3.8/1.6
875 47 3.6/1.5 47 3.7/1.6 47 3.8/1.7 46 3.5/1.5 46 3.6/1.6
900 48 3.8/1.7 47 3.5/1.5 47 3.6/1.6 47 3.7/1.6 47 3.8/1.7
925 48 3.6/1.6 48 3.8/1.6 47 3.4/1.5 47 3.5/1.5 47 3.6/1.6
950 48 3.4/1.5 48 3.6/1.5 48 3.7/1.6 48 3.8/1.6 47 3.4/1.5
975 49 3.8/1.7 48 3.4/1.5 48 3.5/1.5 48 3.6/1.6 48 3.7/1.6
1000 49 3.6/1.6 49 3.8/1.6 48 3.3/1.4 48 3.4/1.5 48 3.5/1.5
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
Orifice
No.
Manifold
Pressure
Orifice
No.
Manifold
Pressure
Orifice
No.
Manifold
Pressure
Orifice
No.
Manifold
Pressure
U.S.A.
Only 6001
to
7000
650 43 3.4/1.5 43 3.5/1.5 43 3.6/1.6 43 3.7/1.6 43 3.8/1.7
675 44 3.6/1.6 43 3.2/1.4 43 3.4/1.5 43 3.5/1.5 43 3.6/1.6
700 44 3.3/1.5 44 3.5/1.5 44 3.6/1.6 43 3.2/1.4 43 3.3/1.4
725 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
750 46 3.7/1.6 46 3.8/1.7 45 3.8/1.6 44 3.2/1.4 44 3.3/1.4
775 46 3.5/1.5 46 3.6/1.6 46 3.7/1.6 46 3.8/1.7 45 3.8/1.6
800 47 3.7/1.6 47 3.8/1.7 46 3.5/1.5 46 3.6/1.6 46 3.7/1.6
825 47 3.5/1.5 47 3.6/1.6 47 3.7/1.6 47 3.8/1.7 46 3.5/1.5
850 48 3.7/1.6 48 3.8/1.7 47 3.5/1.5 47 3.6/1.6 47 3.7/1.6
875 48 3.5/1.5 48 3.6/1.6 48 3.8/1.6 47 3.4/1.5 47 3.5/1.5
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
Orifice
No.
Manifold
Pressure
Orifice
No.
Manifold
Pressure
Orifice
No.
Manifold
Pressure
Orifice
No.
Manifold
Pressure
U.S.A.
Only 7001
to
8000
625 44 3.6/1.6 43 3.3/1.4 43 3.4/1.5 43 3.5/1.5 43 3.6/1.6
650 44 3.3/1.5 44 3.5/1.5 44 3.6/1.6 43 3.2/1.4 43 3.3/1.4
675 45 3.7/1.6 44 3.2/1.4 44 3.3/1.4 44 3.4/1.5 44 3.5/1.5
700 46 3.7/1.6 46 3.8/1.6 45 3.7/1.6 45 3.8/1.7 44 3.5/1.4
725 46 3.4/1.5 46 3.5/1.5 46 3.6/1.6 46 3.8/1.6 45 3.7/1.6
750 47 3.6/1.6 47 3.7/1.6 46 3.4/1.5 46 3.5/1.5 46 3.6/1.6
775 47 3.4/1.5 47 3.5/1.5 47 3.6/1.6 47 3.7/1.6 46 3.4/1.5
800 48 3.6/1.6 48 3.7/1.6 47 3.4/1.5 47 3.5/1.5 47 3.6/1.6
825 48 3.4/1.5 48 3.5/1.5 48 3.6/1.6 48 3.8/1.6 47 3.4/1.5
850 49 3.8/1.6 48 3.3/1.4 48 3.4/1.5 48 3.5/1.5 48 3.6/1.6
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
Orifice
No.
Manifold
Pressure
Orifice
No.
Manifold
Pressure
Orifice
No.
Manifold
Pressure
Orifice
No.
Manifold
Pressure
U.S.A.
Only 8001
to
9000
600 44 3.4/1.5 44 3.5/1.5 44 3.6/1.6 43 3.2/1.4 43 3.3/1.4
625 45 3.7/1.6 44 3.2/1.4 44 3.3/1.4 44 3.4/1.5 44 3.5/1.5
650 46 3.6/1.6 46 3.8/1.6 45 3.7/1.6 45 3.8/1.7 44 3.3/1.4
675 47 3.8/1.7 46 3.5/1.5 46 3.6/1.6 46 3.7/1.6 46 3.8/1.7
700 47 3.6/1.5 47 3.7/1.6 47 3.8/1.7 46 3.5/1.5 46 3.6/1.6
725 48 3.8/1.6 47 3.4/1.5 47 3.5/1.5 47 3.7/1.6 47 3.8/1.6
750 48 3.5/1.5 48 3.6/1.6 48 3.8/1.6 47 3.4/1.5 47 3.5/1.5
775 48 3.3/1.4 48 3.4/1.5 48 3.5/1.5 48 3.6/1.6 48 3.8/1.6
800 49 3.6/1.6 49 3.8/1.6 48 3.3/1.4 48 3.4/1.5 48 3.5/1.5
* Orifice numbers (43) shown in shading are factory installed.
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