Burner cleaning (continued) – Bradford White U-TW4-75S-76R-3N User Manual
Page 18
U TTW SERVICE PROCEDURE II
Burner Operation Inspection,
Cleaning and Replacement
Page 18
Step 6.
Disconnect (unscrew) manifold brackets from main
burner orifices.
Step 7.
Remove main burner orifice from feed line (1/2"
wrench). Inspect and clean if necessary
Step 8.
Remove pilot assembly, refer to SERVICE PROCEDURE III for cleaning and inspection.
Step 9.
Reassemble burner.
Step 10.
Reinstall burner and inner door per SERVICE PROCEDURE I, steps 5 through 16.
Step 11.
To resume operation, follow the instructions located on the lighting instruction label or the lighting
instructions located in the installation and operation manual.
Burner Cleaning (Continued)
Step 4.
Thoroughly inspect burner screen and burner venturis and remove any loose debris accumulation. Inspect
burner screen for any openings larger than the normal screen openings.
Step 5.
Use compressed air and/or a vacuum to remove any scale or other debris accumulation from the burner screen
and venturis.
Burner Screen
Burner Venturis
Manifold Brackets
Main Burner Orifices
R
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