Special options are available for Fireall burners for a nominal
increase in price. These must be ordered with assistance from
North American. Several of the more popular options are detailed
on this page. Benefi ts from using these options can vary and
oft en depend on factors other than the burner itself, such as the
fuel delivery system, furnace size and temperature, and process
Back pressure construction
is available for applications up
to several psi, such as found in fl uidized beds. The special
construction addresses leak paths to minimize this condition. The
standard Fire•All product is suitable up to approximately
furnace back pressure.
Fast mix construction
is available for most burner sizes.
This reduces fl ame length by approximately 40%. It is not
recommended for heavy oil applications, and in general, the
modifi cation will result in a reduction in performance limits
(lighting, excess air, etc.).
Hinged burner construction
is available for the -8-A size only.
This allows the BO (burner only) portion to swing open from the
mounting and tile assembly for easy access to burner internals.
for 5514 and 6514 burners are useful
where extra turndown, preheated air, or consistently lean
operation is required. Atomizer reduction is typically one size
smaller, e.g., an -8-A atomizer in an -8-B burner. Under sizing the
atomizer is not recommended for the 6514-10 burner.
High pressure atomizers
5622, 5623 or 5643 can be fi tted to
5514 and 6514 burners for special applications such as inciner-
ating waste liquids. Steam or compressed air (15 to 125 psig) is
required at the atomizer for proper operation. Refer to Bulletins
5622/23 and 5643 for performance characteristics. In these in-
stances, the existing low pressure atomizing air connection on the
burner is used for additional main combustion air.
(welding) of the atomizing air nozzle and
tube is recommended for hot applications (1800°F and higher)
where the 5514 or 6514 burner is fi red vertically down.
Spoked oil nozzles
can be requested for light oil applications.
This can improve atomization quality and reduce burner
carboning. The standard 5514 and 6514 oil nozzle (not spoked) is
recommended for all heavy oil applications.
can be specifi ed with 1
" NPT connection
to accept a 5025-1-3T direct spark oil pilot.This pilot is
recommended for interrupt
ed operation only. Good practice dictates
mounting the oil pilot above the burner horizontal centerline to avoid
possibility of oil running back into the pilot. An 8699-1-453 balancing
orifi ce is suggested for the air supply to provide proper air fl ow for 8
osi and 0.85 gph rating.
Refractory burner tiles
can be manufactured in a number of special
ways including shortened length, with a choked exit, with expanded
metal liners or sst needles. Contact North American for an explana
of benefi ts and availability of these options. Pre-fi red tiles are no
longer available as a special option.
Oversized air connections.
Nose castings for sizes -8-A and larger
can be bored out for up to 30% additional main air capacity. Complete
performance data is not available for burners with this modifi cation.
Most -8-B,-9, and -10 applications require an enlarged air connection
Direct spark ignition
is possible with a 4055-M igniter for gas only
4514 burners. The igniter has a
" NPT connection and can replace
the 4025 pilot tip. Igniter extension is adjustable and optimal position is
determined during fi eld start up. The burner main air pressure should
be less than 1 osi when attempting to light with direct spark.
4514 / 5514 / 6514-8-B
4514 / 5514 / 6514-9
4514 / 5514 / 6514-10
Oversized air connection
t © 2020- F
es - All r
ved | Shee
t 6514-3 03/13
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.
Fives North American Combustion, Inc.
4455 East 71st Street - Cleveland, OH 44105 - USA
T +1 800 626 3477 - F +1 216 373 4237