Screenlok ® Flame Arrestor Cleaning - Bradford White M1TW40S Series Service Manual

ScreenLok Flame Arrestor Cleaning:
®
Step 1. Position Gas Control Power Switch to the OFF position.
Step 2. Remove outer jacket.
Step 3. Remove inner door per TTW SERVICE PROCEDURE XIII, step 3a through step 3d.
Step 4. Disconnect main burner feed line (3/4 wrench), pilot tube (7/16 wrench) and igniter/flame sensor wire
from gas control and remove burner assembly from combustion chamber.
Step 5. Clean ScreenLok
scale or other debris accumulation. Using a soft brush, clear jacket openings from any dirt, dust,
restrictions or other obstructions.
Step 6. Remove any debris from burner assembly per TTW SERVICE PROCEDURE I and reinstall burner
assembly into combustion chamber.
Step 7. Reconnect feedline, pilot tube and igniter/flame sensor wire to the gas control.
Step 8. Reinstalll inner door per TTW SERVICE PROCEDURE XIII, step 7 through step 12.
Step 9. To resume operation follow the instructions located on the lighting instruction label or the lighting
instruction located in the installation and operation manual.
® Flame Arrestor using stiff brush, compressed air and/or shop vacuum to remove any
ScreenLok Flame Arrestor Cleaning
®
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