Sheet 6435-2 Page 3
6435-3
Main Air Pressure, osi
Not Burning Main air, scfh
0.2
1
4
9
16
30
4120
Atom. air, scfh at 30 osi Atom. air, scfh at 8 osi
210 110
Burning Natural Gas Main air, scfh, stoich.
0.2 235
1
4
9
16
30
680 100
1530
2490
3420
4870
Atom. air, scfh at 8 osi, stoich.
110
95
85
70
65
† Total air, scfh, stoich. Gas flow, stoich., scfh
480
915
1760
2710
3620
5100
48 0.2
92
176 2.3
271 4.2
362
510 12.4
Gas pressure, stoich., osi Flame length, in., stoich. Flame diameter, in., stoich. Tile pressure, osi, stoich.
0.9
7.0
9
9 2
14
14
12
12
2.5 0.1
2.5 1.6
2.5 2.9
3
2.5 8.8
0.6
5.0
Max. %XSAir ‡ Stability and flame supervision
100 100
400 400
400 400
400 400
400 400
400 400
Ignition--pilot
4051-D igniter limits (0.5 osig igniter air pressure)
XSF 15+
80 15+
150 15+
Max. %XSFuel
15+
15
0
Burning #2 Oil
0.2
1
4
9
16
30
Main air, scfh, stoich.
300 205 640 0.46
665 205
1430 200 1760
2320
3180
4510
§ Atom. air, scfh at 30 osi, stoich.
190
180
170
† Total air, scfh, stoich. Oil flow, stoich., gph
1000
2460
3500
4820
0.71
1.26
1.9
2.5 1 .2
3.4 2.2
Oil pressure, stoich., psi Flame length, in., stoich. Flame diameter, in., stoich. Tile pressure, osi, stoich.
0.1
0.5
1.1 12
0.9
7 2
7
14
12
16
2.5 0.6
2.5 1.9
2.5 3.6
2.5 6.2
3
0.15
11.9
Max. %XSAir ‡ Stability and flame supervision
25 25
75 75
225 225
400 400
400 400
400 300
• Ignition--pilot
Max. %XSFuel
15+
15+
15+
15+
15+
0
† Total air is main air plus atomizing air plus 135 scfh for pilot air. ‡ Honeywell Ultravision Flame Detector C7027A and Honeywell Flame Supervision Protectorelay RA890G yielded 1.5 micro amps or greater for all above rates. § 30 osi is recommended atomizing air pressure for oil, but all burners will operate on oil with 22 osi atomizing air (at the burner) and 10% or more excess air. • Direct spark ignition on oil is not considered a viable lighting method due to the lack of repeatability.
Velocity: The distance (in inches) from the tile outlet to the point where the tile velocity pressure is 0.1wc (1259 fpm) is 67" on gas and 68" on oil (firing stoichiometric with 16 osi main air pressure).
Made with FlippingBook flipbook maker