Bulletin 4725 Page 4
Gas Cartridge Assembly "X"
Flange
Body
Air Adj. Plug Assembly
Flange Gasket
Air
4725- -E
4725- -M
4725- -G
Igniter Assemblies
Mounting Flange Gasket †
O-Ring Gasket
Observation Port
Flame Retainer
Gas Connection
Gas Connection Gasket
4725- -G Igniter Assembly Shown
4725- -E Body Drilling at Igniter
Burner designation
Part name
4725-2
4725-3
4725-4
4725-5
4725-6-E 4-3752-1 4-3752-2 4-7715-4 4-3449-11
Air Adj. Plug
4-3709-1 4-3709-2 4-7715-1 4-3509-13 4-3509-11 4-3509-11 4-28521-1 4-28524-_ 2-4170-1 4-5371-1 4-6062-9 4-22039-1 4-3510-7 4-3681-1 4-5072-4 4-5072-3 4-6540-2
4-3709-1 4-3709-2 4-7715-1 4-3509-14 4-3509-12 4-3509-12 4-28521-1 4-28524-_ 8765-3-B 4-5371-1 4-6062-9 4-22039-1 4-3510-8 4-3681-1 4-5072-4 4-5072-3 4-6540-2
4-3293-1 4-3293-2 4-7715-3 4-3564-7 4-3564-6 4-3564-6 4-28522-1 4-28525-_ 8765-4-C 4-5371-2 4-6062-4 4-3565-2 4-3681-1 4-5072-4 4-5072-3 4-6540-1
4-3752-1 4-3752-2 4-7715-4 4-3449-9 4-3449-8 4-3449-8 4-28523-1 4-28526-_ 8765-5-C 4-5371-2 4-6062-5 4-3448-3 4-3681-1 4-5072-4 4-5072-3 4-6540-1
Air Adj. Plug (Hot Air) Air Adj. Plug Assembly
4725- -E 4725- -G 4725- -M
Body
— —
Flame Retainer (standard "L") Flame Retainer (extended "L")‡
4-28523-1 4-28526-_ 8765-6-C 4-5371-2 4-6062-5
Flange
Flange Gasket
Gas Cartridge Assembly Gas Connection Gasket *
4-22039-2 4-22039-2 4-22039-2
Gas Connection Gasket (Hot Air)
4-22039-3 4-22039-3 4-22039-4 4-22039-4 4-22039-4
Gas Connection
4-3448-4 4-3681-1
4725- -E 4725- -G 4725- -M
Igniter
— —
Assembly
Mounting Flange Gasket†
4-6540-1
O-Ring Gasket Observation Port
R289-8730 R289-8730 R289-8752 R289-8731 R289-8731
8790-0
8790-0
8790-0
8790-0
8790-0
* Should minor air leakage occur between the body and gas connection castings on burners manufactured prior to September, 1996, it will be necessary to install this new gasket. At the same time, it will be necessary to replace the copper-clad "gasket" and install a new gas connection. All three parts are to be ordered from the factory. Part numbers are listed in the above chart. To verify that you have received the proper gas connection, the "X" dimension of 25⁄64 " should be checked. † Mounting flange gasket is not part of the burner and must be ordered separately. ‡ For extended "L dimension flame retainers ("L" dimension in ½ " Increments from L = 12" to L = 24") insert required "L" dimension in the blank space. For example: 4-28524-14 for 4725-2/3 flame retainer with "L" dimension of 14" or 4-28526-16.5 for 4725-5/6 flame retainer with "L" dimension of 16 ½ " . For complete burner assemblies with extended "L" dimensions, consult factory for special part numbers. Parts Order Must Specify: 1 – Burner Designation 2 – Part Name 3 – Part Number
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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