Product Overview | 4422 Fire•All ™
DOUBLE PILOT AND FLAME SUPERVISORY CONNECTION (4422D)
OPTIONAL CONSTRUCTIONS
Burner connections are provided for mounting pilot or direct spark igniter, and flame detector. Burners are shipped with pipe plugs in the openings. Burner flame may be seen through the rear observation port. (Observation port is not to be used for mounting of flame detector.) Burner air pressure can be measured at the tap location provided. For additional construction information refer to Dimensions & Parts List 4422-2. LIGHTING AND FLAME SUPERVISION The burner may be direct spark ignited or piloted. A 4011-12 pilot set is recommended for individual burner ignition. When multiple burners share a single pilot pre-mix header, a 4021-12 pilot tip per burner with an appropriately sized air/gas mixer is recom- mended. A manual torch can be used in some applications. The burner can be direct spark ignited with either the 4055 Direct Spark Igniter (4055-D for 4422-2 through -6-B and 4055-B for 4422-7 and -8 sizes) or the 4051-D Air Assisted Igniter. The 4051 Air Assisted Igniter is recommended because it ignites the burn- ers over a wider operating range. If using direct spark ignition of main flame, use a standard 6000 volt trans[1]former. Half-wave ignition transformers can be used only with the 4055. To realize the full performance of the burner, use UV flame su- pervision. An ultraviolet (UV) detector can be installed in any one of the three holes in the body using an adapter listed in Bulletin 8832. UV flame supervision provides a more reliable signal than flame rods in 4422 burners and works over a wider range of ratios and turndown rates. If flame rod supervision is required, the operating range of the burner will be limited. Flame rods are not compatible with the -7 and -8 size of burners. Consult the product manager for more information on flame rod operation. When using flame supervision, an interrupted pilot is required-do not use constant or intermittent pilots. Startup and Adjustment: Refer to Bulletin GB-M1 for startup and adjustment of a nozzle- mix burner with ratio regulator air/fuel ratio control. EQUIPMENT OPTIONS The 4422 Fire•All™ is offered in many physical arrangements to accommodate installation and operating requirements.
This special burner body has two sets of connections for mount- ing pilot or spark igniter and flame detector.This permits a variety of piping arrangements or redundant pilots and flame detectors. It is available only in -2 through-6-B burner sizes and is otherwise identical to a standard burner. For dimension infor- mation refer to Dimensions & Parts List 4422-5. HINGED BURNER BODY (4422HR OR 4422HL) There is a hinge between the cast mounting plate and burner body. The hinge provides easy access to the burner tunnel for
cleaning deposits that may result from the process (incineration is an example). During operation, a latch firmly holds the burner body against the mounting plate. The burner is available with the hinge on either the right or left side. Pilot and flame detector connections are located opposite the hinge.
4422HL
To specify hinge location: When looking at the rear of the burner with the air pipe entering from above (12 o'clock position) "HL" specifies the hinge on the left side (shown in drawing) while "HR" specifies the hinge on the right side. For dimension information refer to Dimensions & Parts List 4422-6. BURNER ONLY (4422- -BO)
The burner can be ordered without the tile and mounting plate. This is useful where a mounting plate and tile already exist or for special construction furnaces. Refer to Dimensions & Parts List
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.
Bulletin 4422 Page 3
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