Bryant 352AAV Installation, Start-Up, And Operating Instructions Manual page 57

Table 15 - - Model 352AAV Orifice Size and High/Low-Heat Manifold Pressures for Correct Inputs (Continued)
AVG GAS
ALTITUDE
HEAT
RANGE
VALUE
Orifice
FT (M)
(BTU/CU FT)
no.
625 43
650 43
675 44
7001
to 700 44
8000
725 44
(2134 to
750 45
2438)
775 45
15%
derate
800 45
825 47
850 47
AVG GAS
ALTITUDE
HEAT
RANGE
VALUE
Orifice
FT (M)
(BTU/CU FT)
no.
600 43
625 43
Altitudes
650 44
8001
675 44
to 9000
(2438 to 700 44
2743)
725 45
17%
750 45
derate
775 45
800 47
AVG GAS
ALTITUDE
HEAT
RANGE
VALUE
Orifice
FT (M)
(BTU/CU FT)
no.
575 43
600 43
9001
625 44
to
10000
650 44
(2743
675 44
to
700 45
3048)
19%
725 45
derate
750 47
775 47
*Orifice numbers shown in shading are factory installed.
NOTE: Percents of derate are based on midpoints of U.S. altitude ranges.
for Use With 060 Through 120 Size Furnaces Only
(Tabulated Data Based on 20,000/13,000 Btuh per Burner,
Derated 2 Percent for Each 1000 ft (305 M) Above Sea Level)*
SPECIFIC GRAVITY OF NATURAL GAS
0.58 0.60
Manifold Orifice Manifold
Pressure no. Pressure
3.8/1.6 42 3.3/1.4
3.5/1.5 43 3.7/1.6
3.8/1.6 43 3.4/1.4
3.5/1.5 44 3.6/1.5
3.3/1.4 44 3.4/1.4
3.7/1.6 45 3.8/1.6
3.5/1.5 45 3.6/1.5
3.3/1.4 45 3.4/1.4
3.6/1.5 45 3.2/1.3
3.4/1.4 47 3.5/1.5
SPECIFIC GRAVITY OF NATURAL GAS
0.58 0.60
Manifold Orifice Manifold
Pressure no. Pressure
3.8/1.6 42 3.3/1.4
3.5/1.5 43 3.6/1.5
3.7/1.6 43 3.4/1.4
3.5/1.5 44 3.6/1.5
3.2/1.4 44 3.3/1.4
3.6/1.5 45 3.8/1.6
3.4/1.4 45 3.5/1.5
3.2/1.3 45 3.3/1.4
3.6/1.5 47 3.7/1.6
SPECIFIC GRAVITY OF NATURAL GAS
0.58 0.60
Manifold Orifice Manifold
Pressure no. Pressure
3.8/1.6 42 3.2/1.4
3.5/1.5 43 3.6/1.5
3.7/1.6 44 3.8/1.6
3.4/1.4 44 3.5/1.5
3.8/1.6 44 3.3/1.4
3.6/1.5 45 3.7/1.6
3.3/1.4 45 3.4/1.5
3.7/1.6 45 3.2/1.4
3.5/1.5 47 3.6/1.5
0.62
Orifice Manifold Orifice
no. Pressure no.
42 3.4/1.4 42
43 3.8/1.6 42
43 3.5/1.5 43
44 3.8/1.6 43
44 3.5/1.5 44
44 3.3/1.4 44
45 3.7/1.6 45
45 3.5/1.5 45
45 3.3/1.4 45
47 3.7/1.5 45
0.62
Orifice Manifold Orifice
no. Pressure no.
42 3.4/1.4 42
43 3.8/1.6 42
43 3.5/1.5 43
44 3.7/1.6 44
44 3.4/1.5 44
44 3.2/1.4 44
45 3.6/1.5 45
45 3.4/1.4 45
45 3.2/1.3 45
0.62
Orifice Manifold Orifice
no. Pressure no.
42 3.3/1.4 42
43 3.7/1.6 42
43 3.5/1.5 43
44 3.7/1.5 44
44 3.4/1.4 44
45 3.8/1.6 44
45 3.6/1.5 45
45 3.3/1.4 45
47 3.7/1.6 45
57
0.64 0.66
Manifold Orifice Manifold
Pressure no. Pressure
3.5/1.5 42 3.6/1.5
3.2/1.4 42 3.3/1.4
3.6/1.5 43 3.7/1.6
3.4/1.4 43 3.5/1.5
3.6/1.5 44 3.7/1.6
3.4/1.4 44 3.5/1.5
3.8/1.6 44 3.3/1.4
3.6/1.5 45 3.7/1.6
3.4/1.4 45 3.5/1.5
3.2/1.3 45 3.3/1.4
0.64 0.66
Manifold Orifice Manifold
Pressure no. Pressure
3.5/1.5 42 3.6/1.5
3.2/1.4 42 3.3/1.4
3.6/1.5 43 3.7/1.6
3.8/1.6 43 3.4/1.5
3.6/1.5 44 3.7/1.6
3.3/1.4 44 3.4/1.4
3.8/1.6 44 3.2/1.4
3.5/1.5 45 3.6/1.5
3.3/1.4 45 3.4/1.4
0.64 0.66
Manifold Orifice Manifold
Pressure no. Pressure
3.3/1.5 42 3.6/1.5
3.2/1.3 42 3.3/1.4
3.6/1.5 43 3.7/1.6
3.8/1.6 43 3.4/1.4
3.5/1.5 44 3.6/1.5
3.3/1.4 44 3.4/1.4
3.7/1.6 45 3.8/1.6
3.4/1.5 45 3.5/1.5
3.2/1.4 45 3.3/1.4