Bryant 330AAV - 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
DERATED 4% 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
625 45 3.6/1.5 45 3.7/1.6 44 3.2/1.3 44 3.3/1.4 44 3.4/1.4
650 45 3.3/1.4 45 3.5/1.5 45 3.6/1.5 45 3.7/1.6 45 3.8/1.6
675 47 3.7/1.6 45 3.2/1.4 45 3.3/1.4 45 3.4/1.4 45 3.5/1.5
7001 700 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
725 48 3.6/1.5 48 3.8/1.6 47 3.4/1.4 47 3.5/1.5 47 3.6/1.5
to 750 48 3.4/1.4 48 3.5/1.5 48 3.6/1.5 48 3.8/1.6 47 3.4/1.4
775 49 3.7/1.6 48 3.3/1.4 48 3.4/1.4 48 3.5/1.5 48 3.6/1.5
8000 800 49 3.5/1.5 49 3.6/1.5 49 3.8/1.6 48 3.3/1.4 48 3.4/1.4
825 49 3.3/1.4 49 3.4/1.4 49 3.5/1.5 49 3.6/1.5 49 3.8/1.6
850 50 3.7/1.6 50 3.8/1.6 49 3.3/1.4 49 3.4/1.4 49 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
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
600 45 3.4/1.4 45 3.5/1.5 45 3.6/1.5 45 3.7/1.6 45 3.8/1.6
625 47 3.7/1.6 45 3.2/1.4 45 3.3/1.4 45 3.4/1.4 45 3.5/1.5
8001 650 47 3.4/1.4 47 3.5/1.5 47 3.6/1.5 45 3.2/1.3 45 3.3/1.4
675 48 3.6/1.5 48 3.7/1.6 48 3.8/1.6 47 3.5/1.5 47 3.6/1.5
to 700 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
725 49 3.7/1.5 49 3.8/1.6 48 3.3/1.4 48 3.4/1.5 48 3.5/1.5
9000 750 49 3.4/1.4 49 3.5/1.5 49 3.7/1.5 49 3.8/1.6 48 3.3/1.4
775 50 3.8/1.6 49 3.3/1.4 49 3.4/1.4 49 3.5/1.5 49 3.6/1.5
800 50 3.6/1.5 50 3.7/1.6 50 3.8/1.6 49 3.3/1.4 49 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
575 47 3.7/1.6 45 3.2/1.4 45 3.3/1.4 45 3.4/1.4 45 3.5/1.5
600 47 3.4/1.4 47 3.5/1.5 47 3.6/1.5 47 3.7/1.6 45 3.2/1.4
9001 625 48 3.6/1.5 48 3.7/1.6 48 3.8/1.6 47 3.5/1.5 47 3.6/1.5
650 48 3.3/1.4 48 3.4/1.4 48 3.5/1.5 48 3.6/1.5 48 3.7/1.6
to 675 49 3.6/1.5 49 3.7/1.6 49 3.8/1.6 48 3.4/1.4 48 3.5/1.5
700 49 3.3/1.4 49 3.4/1.5 49 3.6/1.5 49 3.7/1.6 49 3.8/1.6
10,000 725 50 3.7/1.6 50 3.8/1.6 49 3.3/1.4 49 3.4/1.4 49 3.5/1.5
750 50 3.4/1.5 50 3.6/1.5 50 3.7/1.6 50 3.8/1.6 49 3.3/1.4
775 51 3.8/1.6 50 3.3/1.4 50 3.4/1.5 50 3.5/1.5 50 3.7/1.5
* 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.
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