Bradford-White Corp U4TW50T*FRN, U4TW40T*FRN, U4TW60T*FRN Burner Cleaning Procedure cont’d

Models: U4TW60T*FRN U4TW40T*FRN U4TW50T*FRN

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screws
(2) 1/4” hex drive

Burner Maintenance

Burner Cleaning Procedure (cont’d)

Step 5. Remove the (4) 1/4” hex drive screws holding the right side inner door in place.

(4) 1/4” hex drive

screws

Step 6. Remove the (3) 1/4” hex drive screws holding the left side burner door in place.

(3) 1/4” hex drive screws

Step 7. Disconnect the pilot tube using a 7/16” wrench and the main burner feedline with a 3/4” wrench from the gas control.

Pilot and main

feedlines

Step 8. Disconnect the spark igniter/flame sensor wire from gas control.

Gas control

Spark igniter/flame

sensor wire

Right side inner door

Left side

burner door

Step 9. Remove the burner assembly from the com- bustion chamber.

Burner assembly

Step 10. Remove manifold mount from burner inner door

by removing (2) 1/4” hex drive screws.

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Bradford-White Corp U4TW50T*FRN, U4TW40T*FRN, U4TW60T*FRN service manual Burner Cleaning Procedure cont’d