Bulletin 4419
Page 3
Mounting Diagram
RATIO CONTROL and OPERATION
The 4419 series burner fuel/air ratio can be controlled with a
simple cross connected ratio regulator such as the North Ameri-
can 7216 for gas or the 7052 Ratiotrol for fuel oil. Accurate fuel/
air fl ows can be determined by using 8697 Metering Orifi ces in
the fuel gas and air lines
.
If furnace temperatures aft er shutdown rise above 1600°F, pass
air through burner to prevent overheating.
CONSTRUCTION
Features & Capacities | Quick Clean Burner
Natural Gas
Pressure at
Burner Size
0.9
1.7
7.0
15.6
27.7
27.7"w.c., 10% XSA
4419A-6-A
1,400
1,950 5,350 8,300 11,000
5.9"w.c.
4419A-6-B
2,700
3,800 7,600 10,750 16,000
10.4"w.c.
4419A-7-A
3,800
6,700 11,320 16,250 26,300
9.2"w.c.
4419A-7-B
7,200
8,150 15,800 24,500 36,000
12.3"w.c.
Main Air Capacity (scfh)
at various Air Pressures "w.c.
%
Excess %Excess
Fuel
Flame Length
Air Limits for
Limits, Gas and (Oil)
Gas and (Oil) Feet
Burner Size
Gas and (#2 Oil)
27.7"w.c.
27.7"w.c. Air P. 10% XSA
4419A-6-A
600 (100)
30 (30)
4 (4)
4419A-6-B
400 (100)
0 (30)
4 (5)
4419A-7-A
600 (100)
20 (30)
5 (6)
4419A-7-B
800 (100)
15 (30)
6 (6)
Oil Atomizer Pressure/Flow Data
Atom. Air
Oil Flow
Oil Press.
at 35"w.c.
gal/hr
psi
scfh
28
5.9
255
26
5.4
280
24
4.8
285
22
4.3
320
20
3.9
345
18
3.3
360
16
2.9
370
14
2.4
385
12
2.1
395
10
1.8
410
8
1.5
420
6
1.3
435
5
1.1
435
4
1.0
445
3
0.9
450
2
0.8
460
1
0.65
470
DUAL FUEL OPTION and OPERATION
The North American 6419 series is the dual fuel version of
the Quick Clean burner for fi ring #2 fuel oil or fuel gas. The
fuel gas only 4419 Series Quick Clean burner can be easily
converted to a 6419 Series in the fi eld by adding an atomizer
and an 1813 Sensitrol™ Oil Valve.
When operating with #2 fuel oil, the atomizer should be oper-
ated with a constant 35"w.c. air pressure. During gas operation,
use at least 4 osi atomizing air to cool atomizer (full atomizing
air may be used); or for extended periods of operation on gas,
the atomizer can be partially retracted or completely removed
and stored: Use a blanking disk and gasket to seal the burner
if the atomizer is removed (see page 7). Use the stop collar on
the atomizer assembly to return the atomizer to the correct
position when reinstalling the atomizer.
4419A/6419A UPDATED DESIGN
4419 series burners built aft er mid 2020 have an updated design
and are designated as 4419A/6419A. Several parts have been
simplifi ed, but all the input connection dimensions and capacities
are the same as the previous design.
The updated parts include:
—
—
UV swivel mounting plate
—
14 mm igniter with single electrode
—
Replaceable igniter ground rod assembly
—
refractory wall
anchors
8" (short side)
burner
tunnel
mounting
fl ange
(optional)
14"
(max. recessed
into wall)
4419 and 4419A burners have the same capacity and performance.
4419/6419 Minimum Natural gas fl ow (cfh) for lighting at low fi re
Burner Air Pressure
-6-A
-6-B
-7-A
-7-B
1.7"w.c.
40
60
80
100
0.4"w.c.
20
35
50
75
