Sheet 6435-2, 12-01 Page 2
6435-2
Main Air Pressure, osi
Not Burning Main air, scfh
0.2
1
4
9
16
30
3000
Atom. air, scfh at 30 osi Atom. air, scfh at 8 osi
150
65
Burning Natural Gas Main air, scfh, stoich.
0.2 170
1
4
9
16
30
500
1090
1660
2280
3430
Atom. air, scfh at 8 osi, stoich.
65
65
45
45
30
30
† Total air, scfh, stoich. Gas flow, stoich., scfh
375
705
1270
1850
2450
3600
37 0.1
71
127
185
245 7.97
360 11.55
Gas pressure, stoich., osi Flame length, in., stoich. Flame diameter, in., stoich. Tile pressure, osi, stoich.
0.58
2.02
4.62
6 2
4 2
6 3
6 2
6 2
11 3
0.15
0.6
1.75
4.0
6.7
11.0
Max. %XSAir ‡ Stability and flame supervision
100 100 25+
350 350 25+
400 400 25+
400 400 25+
400 400 25+
200 200
Ignition--pilot
Max. %XSFuel
0
Burning #2 Oil
0.2
1
4
9
16
30
Main air, scfh, stoich.
165 150
430 145 715 0.51
1070
1660
2280
3250
§ Atom. air, scfh at 30 osi, stoich.
145
140
140
120
† Total air, scfh, stoich. Oil flow, stoich., gph
455 0.32
1360 0.96
1940
2560
3510
1.39 0.8
1.83
2.5 2.5
Oil pressure, stoich., psi Flame length, in., stoich. Flame diameter, in., stoich. Tile pressure, osi, stoich.
0.1
0.2
0.4
1.4 10
5
6
5
9 2
10
1.5 0.1
1.5
1.5
2
2.5
0.55
1.75
3.9
6.6
12.3
Max. %XSAir ‡ Stability and flame supervision
25 25
50 50 15+
200 200
300 300
300 300
350 350
• Ignition--pilot
Max. %XSFuel
15+
15+
15+
15+
0
† Total air is main air plus atomizing air plus 140 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.
NOTE: Burner is stable on atomizing air only, but should not be operated below 0.2 osi main air to avoid overheating the tile.
Velocity: The distance (in inches) from the tile outlet to the point where the tile velocity pressure is 0.1"wc (1259 fpm) is 56" on gas and 60" on oil (firing stoichiometric with 16 osi main air pressure).
Made with FlippingBook flipbook maker