Carrier 58MXA Nstallation, Start-Up, And Operating Instructions page 39

TABLE 9—Model 58MXA Orifice Size and Manifold Pressure for Correct Input (Continued)
(Tabulated Data Based on 20,000 Btuh per Burner, Derated 2 Percent for Each 1000 ft Above Sea Level)
ALTITUDE AVG GAS
RANGE HEAT VALUE
(FT) (BTU/CU FT)
650
675
700
725
7001
to 750
8000
775
800
825
850
ALTITUDE AVG GAS
RANGE HEAT VALUE
(FT) (BTU/CU FT)
625
650
675
Altitudes
700
8001
to
725
9000
750
775
800
ALTITUDE AVG GAS
RANGE HEAT VALUE
(FT) (BTU/CU FT)
600
625
650
9001
675
to
700
10,000
725
750
775
*Orifice numbers 45 are factory installed.
for Use With 040 Through 120 Size Furnaces Only
0.58 0.60
Orifice Manifold Orifice
no. Pressure no.
43 3.5 43
44 3.8 43
44 3.5 44
44 3.3 44
45 3.7 45
45 3.5 45
45 3.3 45
45 3.1 45
45 2.9 45
0.58 0.60
Orifice Manifold Orifice
no. Pressure no.
43 3.5 43
44 3.7 43
44 3.5 44
44 3.2 44
45 3.6 45
45 3.4 45
45 3.2 45
45 3.0 45
0.58 0.60
Orifice Manifold Orifice
no. Pressure no.
43 3.5 43
44 3.7 44
44 3.4 44
44 3.8 44
45 3.6 45
45 3.3 45
45 3.1 45
45 2.9 45
SPECIFIC GRAVITY OF NATURAL GAS
0.62
Manifold Orifice Manifold
Pressure no. Pressure
3.7 43 3.8
3.4 43 3.5
3.6 44 3.8
3.4 44 3.5
3.8 44 3.3
3.6 45 3.7
3.4 45 3.5
3.2 45 3.3
3.0 45 3.1
SPECIFIC GRAVITY OF NATURAL GAS
0.62
Manifold Orifice Manifold
Pressure no. Pressure
3.6 43 3.8
3.4 43 3.5
3.6 44 3.7
3.3 44 3.4
3.8 44 3.2
3.5 45 3.6
3.3 45 3.4
3.1 45 3.2
SPECIFIC GRAVITY OF NATURAL GAS
0.62
Manifold Orifice Manifold
Pressure no. Pressure
3.6 43 3.7
3.8 43 3.5
3.5 44 3.7
3.3 44 3.4
3.7 45 3.8
3.4 45 3.6
3.2 45 3.3
3.0 45 3.1
39
0.64 0.66
Orifice Manifold Orifice
no. Pressure no.
42 3.2 42
43 3.6 43
43 3.4 43
44 3.6 44
44 3.4 44
45 3.8 44
45 3.6 45
45 3.4 45
45 3.2 45
0.64 0.66
Orifice Manifold Orifice
no. Pressure no.
42 3.2 42
43 3.6 43
44 3.8 43
44 3.6 44
44 3.3 44
45 3.8 44
45 3.5 45
45 3.3 45
0.64 0.66
Orifice Manifold Orifice
no. Pressure no.
42 3.2 42
43 3.6 43
44 3.8 43
44 3.5 44
44 3.3 44
45 3.7 45
45 3.4 45
45 3.2 45
Manifold
Pressure
3.3
3.7
3.5
3.7
3.5
3.3
3.7
3.5
3.3
Manifold
Pressure
3.3
3.7
3.4
3.7
3.4
3.2
3.6
3.4
Manifold
Pressure
3.3
3.7
3.4
3.6
3.4
3.8
3.5
3.3