Sheet 4441-1 page 8
NATURAL GAS OPERATION
4441-7 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)
25300 21700
Air Flow (scfh)
2530
5250 0.35
10500
15100
25300
Air Orifice , UA-DA, (in.w.c.) Gas Orifice , UG-DG, (in.w.c.)
— — 0.1
1.3
2.7 2.2 5.2
5.3 4.4 9.9
7.1
0.2 0.7
1.1
4.6
Tile Pressure DG (in.w.c.) Max. % XSAir, fs, ignition
2.6
11
1500
3000
5000
5000
5000
5000
Max. % XSFuel, fs
30 30 35
30 30
30 30 38
30 30 36
30 30 38
30 10 42
Max. % XSFuel, ignition Flame Length (in.) Flame Diameter (in.)
41
5
7
8
8
8
7
NOTE: The 4441-7 is not available with medium velocity tile.
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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