4545-—-D Burners (1.3 capacity) — Specifications Sheet 4545-2 30% more than standard capacity is available with 4545-7-D through -9-D Burners by installing a special main air orifice plate. Flames are stable over the entire operating range, with satisfactory signals for flame safety devices. Burner dimensions are shown on Dimensions 4545. Orifice plates are located between the body and air flange on 4545-7-D through -8-BD and between the body and mounting on the 4545-9-D. CAUTION: Air and gas pipe sizes may be undersized for these increased firing rates, so pressure drops should be checked carefully. SUGGESTION: Avoid difficulty by adding the oversized air flanges listed below.
Flame length a (natural gas)
"J" b
Burner
Air
Air
Excess air without pilot
designation
pressure
capacity
dimension
4545-7-D
1 osi
8,525 cfh
490%
3.0 ft
83⁄16 "
4 8
17,050 24,100 34,100 13,800 27,600 39,000 55,200 22,100 44,200 62,500 88,400 40,250 80,500 114,000 161,000
450 450 450
4.0 5.0 5.0 4.0 5.0 5.5 6.0 5.0 6.0 8.0 8.0
16
4545-8-AD
1
1900 2400
c
4 8
730 180 730 300 300 250
16
4545-8-BD
1
109⁄16 "
4 8
16
4545-9-D ‡
1
500
— — — —
115⁄8 "
4 8
—
800 200
16
‡ 4545-9-D only: Gas pressure at burner must be 80% of air pressure. Bleeders cannot be used.
PARTS All parts except orifice plate and oversize air flange (if specified) are the same as for standard 4545 Burners. Oversize flanges are specified as 4545-—DOF.
Part name
4545-7-D
4545-8-AD
4545-8-BD
4545-9-D
Orifice plate
4-5881-1
4-5882-1
4-5883-1 OB4-1033-1 d
4-5880-1 OB4-1034-1 d
8765-8 7-D
Oversize air flange (OF)
c
(one pipe size larger than standard)
a With correct air/gas ratio, open cold furnace. b See Dimensions 4545. c An oversize flange is not required for 4545-8-AD. d SW Slip-on or Weld type.
ORDER MUST SPECIFY:
1 - Complete burner designation. 2 - Standard or oversize air flange (select one). 3 - Ground rod(s), if required (see Bulletin 4545). For example:
4545-7-DOF burner, with 8765-8 7-D oversize air flange, and ground rod.
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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