Dimensions | 6821 Magna-Flame ™
Bulletin 6821 Page 4
DIMENSIONS IN INCHES AND DEGREES
Burner Designation A B C D
E
F G H °
J
K
L
M N °
P
Q
R
S
T
U
V
6821-10-A 10 2.5 2 6821-10-B 10 2.5 2
0.75 0.75 4 45 0.75 0.75 4 45 0.75 0.75 4 45
5.5 7 5.5 7
1 1
12 12 12
15 14.25 16 15 14.25 16
16 20.5 22.25
11.75 11
3⁄8 3⁄8 3⁄8 3⁄8 3⁄8 ½ ½ ½
16 22.5 24.25 13.75 12.5 16 24.5 26.25 14.75 13.5 20 26.5 28.25 14.81 14.5
6821-12 6821-14 6821-16 6821-18 6821-20 6821-22
12 3 2.5 14 4 3 16 4 3 18 4 4
6
7.5 1
15
17
19
0.75 0.75 8 22.5 7.5 9 0.75 0.75 8 22.5 7.5 9 0.88 0.75 8 22.5 7.5 9 0.88 0.88 8 22.5 9.5 11 0.88 0.88 8 22.5 9.5 11
1.13 12
15 18.75 21
1.13 16 11.25 21.25 23.5 20 28.5 30.25 14.81 15.5
1.25 16 11.25 22.75 25
20 30.5 32.25 14.81 16.5
20 6 4 22 6 4
1.25 20 1.25 20
9 25 9 26
27.5 24 32.5 34.25 15.5
17.5
29.5 24 34.5 36.25 15.5 18.5
DIMENSIONS IN INCHES
Burner
Estimated weight, lb
Recommended
CC DD EE
Designation W
X
Y
Z
AA
BB
FF
GG HH
pilot assy.
6821-10-A 6821-10-B
1.75 1.75
12.25 13.06 9.5
40.19 43.81 49.19
1.5 10
16 18
72 79 88 95 99 112
9 9 11
6.25
351 451
4014-2-T 4014-2-T 4014-3-AT 4014-3-AT 4014-3-AT 4014-3-BT 4014-3-BT 4014-3-BT
¾ ¾ ¾ ¾
15
13.94 9.5
1.5
11
7
6821-12 6821-14 6821-16 6821-18 6821-20 6821-22
2.38 5.19 5.19 7.88 7.88 7.88
17.5 15.44 10.5 18.5 16.88 10.5
2 2 2 2 2 2
12.5
20
8.5
588 727 807 950 1045 1183
51.88
14.75 22
13.63 10
19
17.25 10.5
52.75 2 60.56 2 61.44 2 66.81 2
17
24
15.63 11.25 17.63 12.75 19.63 14.25 21.63 15.75
19.5 18.88 15.5 20.5 21.25 15.5 21.5 23.13 15.5
19.25 26
21.5
28 30
116 120
24
main air conn.
Arrangement Designators are specified relative to the main air connection at 12 o'clock and should be listed for pilot, gas, flame supervison and atomizing air in that order. Furnace opening should be ½" larger than dimension EE for 10A thru 14 and ¾" larger than dimension EE for 16 thru 22. Whenever the tile length is greater than DD × 1.2, the tile beyond DD should flare out at a 30° angle (60° included angle). Flat face companion flange available upon request.
pilot position designators ‡ are
gas connection position designators are
flame supervision designators ‡ are (must be 90, 135 or 180° from pilot)
outside furnace view
atomizing air connection position designators are
‡ Good practice dictates that neither the pilot nor the flame detector be below the centerline of a horizontally-mounted burner. ORDER MUST SPECIFY : (1) Burner designation (such as 6821-16-54); (2) Arrangement designation for pilot, gas connection, flame safety and atomizing air connection positions in that order such as 6821-16-54, arrangement 3a1E (for the arrangement shown above).
WARNING: Situations dangerous to personnel and property may exist with the operation and maintenance of any combustion equipment. The presence of fuels, oxidants, hot and cold combustion products, hot surfaces, electrical power in control and ignition circuits, etc., are inherent with any combustion application. Components in combustion systems may exceed 160°F (71°C) surface temperatures and present hot surface contact hazard. Fives North American Combustion, Inc. suggests the use of combustion systems that are in compliance with all Safety Codes, Standards, Regulations and Directives; and care in operation.
CONTACT fna.sales@fivesgroup.com T +1 800 626 3477 - F +1 216 373 4237
Fives North American Combustion, Inc. 4455 East 71st Street - Cleveland, OH 44105 - USA www.fivesgroup.com
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