Nordyne SC038D-23A Installation Instructions Manual page 37

NATURAL GAS - HIGH HEATING VALUE
ALTITUDE ABOVE
SEA LEVEL
38,000
45
0 to 1,999 FT
3.5
45
2,000 to 2,999 FT
3.0
45
3,000 to 3,999 FT
2.8
45
4,000 to 4,999 FT
2.7
45
5,000 to 5,999 FT
2.5
49
6,000 to 6,999 FT
3.5
49
7,000 to 7,999 FT
3.4
49
8,000 to 8,999 FT
3.2
49
9,000 to 9,999 FT
3.0
Table 12. High Altitude Deration Chart for Natural Gas - High Heating Value
NATURAL GAS - LOW HEATING VALUE
ALTITUDE ABOVE
SEA LEVEL
38,000
45
0 to 1,999 FT
3.5
45
2,000 to 2,999 FT
3.5
45
3,000 to 3,999 FT
3.1
45
4,000 to 4,999 FT
2.9
45
5,000 to 5,999 FT
2.8
45
6,000 to 6,999 FT
2.6
48
7,000 to 7,999 FT
3.3
48
8,000 to 8,999 FT
3.0
48
9,000 to 9,999 FT
2.8
Table 13. High Altitude Deration Chart for Natural Gas - Low Heating Value
INPUT (BTU)
54,000 72,000 90,000 108,000
47 47 47
3.5 3.5 3.5
47 47 47
3.2 3.2 3.2
47 47 47
3.0 3.0 3.0
47 47 47
2.8 2.8 2.8
47 47 47
2.7 2.7 2.7
49 49 49
3.5 3.5 3.5
49 49 49
3.3 3.3 3.3
49 49 49
3.0 3.0 3.0
49 49 49
2.8 2.8 2.8
INPUT (BTU)
54,000 72,000 90,000
47 47 47
3.5 3.5 3.5
47 47 47
3.5 3.5 3.5
47 47 47
3.3 3.3 3.3
47 47 47
3.1 3.1 3.1
47 47 47
2.9 2.9 2.9
47 47 47
2.8 2.8 2.8
49 49 49
3.4 3.4 3.4
49 49 49
3.2 3.2 3.2
49 49 49
2.9 2.9 2.9
120,000
47 47 ORIFICE SIZE
3.5 3.5 MANIFOLD PRESSURE
47 47 ORIFICE SIZE
3.2 3.2 MANIFOLD PRESSURE
47 47 ORIFICE SIZE
3.0 3.0 MANIFOLD PRESSURE
47 47 ORIFICE SIZE
2.8 2.8 MANIFOLD PRESSURE
47 47 ORIFICE SIZE
2.7 2.7 MANIFOLD PRESSURE
49 49 ORIFICE SIZE
3.5 3.5 MANIFOLD PRESSURE
49 49 ORIFICE SIZE
3.3 3.3 MANIFOLD PRESSURE
49 49 ORIFICE SIZE
3.0 3.0 MANIFOLD PRESSURE
49 49 ORIFICE SIZE
2.8 2.8 MANIFOLD PRESSURE
108,000 120,000
47 47 ORIFICE SIZE
3.5 3.5 MANIFOLD PRESSURE
47 47 ORIFICE SIZE
3.5 3.5 MANIFOLD PRESSURE
47 47 ORIFICE SIZE
3.3 3.3 MANIFOLD PRESSURE
47 47 ORIFICE SIZE
3.1 3.1 MANIFOLD PRESSURE
47 47 ORIFICE SIZE
2.9 2.9 MANIFOLD PRESSURE
47 47 ORIFICE SIZE
2.8 2.8 MANIFOLD PRESSURE
49 49 ORIFICE SIZE
3.4 3.4 MANIFOLD PRESSURE
49 49 ORIFICE SIZE
3.2 3.2 MANIFOLD PRESSURE
49 49 ORIFICE SIZE
2.9 2.9 MANIFOLD PRESSURE
37