Sheet 6843-1 Page 2
RECOMMENDED MAXIMUM XSAir RATES--Percent (Gas fires include 100 scfh [2 psi] atomizing air--required for cooling) air pressure, osi
Burner designation 6843-3-25
0.5
1
2
4
9
16 15 50 20 50
30
Oil
10
20
25
25 75 30 75
20 50 20 50
15
Gas
150
200
250
40
6843-4-25
Oil
25
50
50
–
Gas 40 Flame length "on ratio" for both burners varies from within the tile at low rates to 10" long by 12" diameter at higher air rates. 150 200 250
DIMENSIONS in inches
9 7⁄16
18 sq.
¾
5⁄16
"C" Models Flanged
¾ dia. 4 holes
9 3⁄8
Flangeless
†
15 sq.
2
1 3⁄8
3⁄8 NPT oil inlet
5 7⁄16
B -NPT gas inlet
5 1⁄8
3⁄8 NPT atomizing air inlet
8 1⁄16
10 ¼
A -NPT main air connection
11 15⁄16 ‡
(see note)
Sensitrol ™
Burner
weight
Sensitrol ™ oil valve recommended
designation
A
B
lb
1813 or 1813M
pilot tip
(see note)
1
230 230
-02A -02A
4021-12 4021-12
6833-3-25 6833-4-25
1 ½
2
1 ¼
† Pipe nipple not furnished by North American. ‡ This dimension assumes a 3⁄8 " close nipple between burner and Sensitrol Oil Valve.
NOTE: Sensitrol oil valve not included in burner assembly. Order separately per table above.
DIMENSIONS SHOWN ARE SUBJECT TO CHANGE. PLEASE OBTAIN CERTIFIED PRINTS FROM FIVES NORTH AMERICAN COMBUSITON, INC. IF SPACE LIMITATIONS OR OTHER CONSIDERATIONS MAKE EXACT DIMENSION(S) CRITICAL .
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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