NATURAL GAS OPERATION
4441-4-A HV Air Pressure UA pressure tap ("w.c.)
0.2 (0.3")
1 (1.7")
4 (6.9")
9 (15.6")
16 (27.7")
20 (34.6")
Air Flow, not burning (scfh)
5900 5100
Air Flow (scfh)
625
1250
2500
3850
5700
Air Orifice , UA-DA, (in.w.c.) Gas Orifice , UG-DG, (in.w.c.)
0.2 0.1 0.1
0.9 0.4 0.6
3.5
7.9 3.6 5.5
14.3
17.8 7.9 12.1
1.5
6.5
Tile Pressure DG (in.w.c.) Max. % XSAir, fs, ignition
2.3
10.7
1600
3400
5000
6000
6000
6000
Max. % XSFuel, fs
30 30
30 30
30 30
30 30
30 30
30 30
Max. % XSFuel, ignition Flame Length (in.) Flame Diameter (in.)
21
21
18
17
16
17
4
4
3.5
3.5
3
3
4441-4-A MV Air Pressure UA pressure tap ("w.c.)
0.2 (0.3")
1 (1.7")
4 (6.9")
9 (15.6")
16 (27.7")
Air Flow, not burning (scfh)
6350 6075
Air Flow (scfh)
750 0.3
1550
3450
4500
Air Orifice , UA-DA, (in.w.c.) Gas Orifice , UG-DG, (in.w.c.)
1.2
4.8 2.8 0.7
11.4 4.7
20
0.1
0.6 0.2
9.0 3.4
Tile Pressure DG (in.w.c.) Max. % XSAir, fs, ignition
0
1.6
1600
3400
5000
6000
6000
Max. % XSFuel, fs
30 30 23
30 30 24
30 30 30
30 30 27
30 30 24
Max. % XSFuel, ignition Flame Length (in.) Flame Diameter (in.)
4
5
5
5
5
4441-4-B HV Air Pressure UA pressure tap ("w.c.)
0.2 (0.3")
1 (1.7")
4 (6.9")
8 (13.8")
16 (27.7")
20 (34.6")
Air Flow, not burning (scfh)
8900 7700
Air Flow (scfh)
800
1850
3700
5400
8750 20.7
Air Orifice , UA-DA, (in.w.c.) Gas Orifice , UG-DG, (in.w.c.)
0.3 0.1 0.1
1
3.6 2.6
7.9 5.5 4.2
16.2
0.6 0.5
12
14.3 10.3
Tile Pressure DG (in.w.c.) Max. % XSAir, fs, ignition
2.1
9.3
500
1500
3000
4000
6000
6000
Max. % XSFuel, fs
30 30
30 30
30 30
30 30
30 30
30 30 20 3.5
Max. % XSFuel, ignition Flame Length (in.) Flame Diameter (in.)
18
18
18
18
16
3
3
3
3
3
4441-4-B MV Air Pressure UA pressure tap ("w.c.)
0.2 (0.3")
1 (1.7")
4 (6.9")
8 (13.8")
16 (27.7")
Air Flow, not burning (scfh)
9350 8950
Air Flow (scfh)
990
2150
4230
6100
Air Orifice , UA-DA, (in.w.c.) Gas Orifice , UG-DG, (in.w.c.)
0.3 0.2
1.3
5.1
10.9
22.3
0.9
3.5 0.5
7.3
17
Tile Pressure DG (in.w.c.) Max. % XSAir, fs, ignition
0
0.1
1.1
2
500
1500
3000
4000
6000
Max. % XSFuel, fs
30 30
30 30
30 30 24
30 30 25
30 30 28
Max. % XSFuel, ignition Flame Length (in.) Flame Diameter (in.)
21
21
5
5
6
6
6
Sheet 4441-1 page 6
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