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Step 5. Disconnect (unscrew) Main burner (stamped steel burner) from main
burner orifice or on cast iron burners, loosen air shutter &
disconnect (unscrew) feedline from burner.
Step 6. Remove main burner orifice from feed line (½” wrench on steel
burner, 3/8" wrench on cast iron). Inspect and clean if necessary.
Step 7. Inspect pilot assembly per service procedure AG-II.
Step 8. Reassemble burner.
Step 9. Inspect combustion chamber area of heater and clean if needed prior to reinstallation of burner assembly.
Step 10. Reinstall burner assembly into combustion chamber, reconnect feedline, thermocouple and pilot tube to
the combination thermostat/gas valve.
Step 11. Slide inner combustion chamber door closed and reattach outer jacket door.
Step 12. 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 (Cont.)
SERVICE PROCEDURE AG-IV
Burner Operation Inspection, Adjustment
Cleaning and Replacement
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