Potterton SIRIUS FS Installation & Servicing Instructions Manual page 61

7.3.16 Burner Head Removal with Fan removed (see section 7.3.12)
7.3.17 Burner Head Removal with Air Control Valve removed (see section 7.3.14)
Sirius FS
- See section 7.2 (items 1, 2, 3 & 4) for access
- Disconnect the overheat stat, spark lead, ionisation lead, earthing cable
and six way electrical connector to the air control valve.
- Remove the six bolts securing the burner assembly and door to the heat
exchanger and pull out the complete burner assembly and air control valve.
-
Check for damage or severely burnt areas along the burner tube. Use a
vacuum cleaner or nonmetallic brush on the inside of the tube only. Do not
use a brush to clean the outside of the burner tube.
- Access is now available for heat exchanger inspection (see section 7.3.17)
- If necessary replace burner tube by removing the air control valve (see
section 7.3.14) and pulling out the old tube. Inspect condition of rubber
seal and replace if worn or damaged. Ensure that the seal is correctly
located with its tab in alignment inside the aluminium cut out on the door.
- Re-assembly is the reverse
- See section 7.2 (items 1, 2, 3 & 4) for access
- Carefully pull burner tube from door assembly
- Check for damage or severely burnt areas along the burner tube. Use a
vacuum cleaner or nonmetallic brush on the inside of the tube only. Do not
use a brush to clean the outside of the burner tube.
- Access is now available for heat exchanger inspection (see section 7.3.18)
- If necessary replace burner tube
- Re-assembly is the reverse
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