Section 12: Servicing
Page 59
Figure 12-17:
Brazier assembly removal to side
Figure 12-18:
Brazier assembly removal
12.7.2 Cleaning the Burner
Once dismantled, clean the burner as follows:
•
Clean and inspect the burner housing (inside the combustion
chamber).
•
Remove all ash deposits and check that all openings and air
holes are clear.
•
Clean and inspect the brazier assembly, flame pot (refer to
Figure 12-19), brazier base plate and brazier front plate.
Figure 12-19:
Flame pot flange
•
Remove all ash and clinker deposits from these parts using a
wire brush and, where necessary, a flat scraper. Check that all air
holes are clear.
•
Re-fit brazier assembly into the burner housing – locating the
brazier cleaning shaft into the opening in the left side of the
brazier assembly.
•
Replace the wire cotter pin to secure the brazier assembly to the
brazier cleaning shaft.
•
Re-fit the flame pot into the top of the burner housing.
•
the flange on one side of the octagonal pot is narrower than
the other seven sides. Refer to Figure 12-19. this side MUSt
be located on the left hand side or the pot will not fit into the
burner housing.
nOtE
!
Re-fit the brazier base plate into the lower front of the burner
housing using the multi-purpose tool supplied with the boiler
•
Re-fit the brazier front plate onto the lower front of the burner
housing. Secure in place by engaging the brazier catch into the
catch plate on the upper front face of the burner housing. Rotate
catch 90° clockwise to ensure it is fully engaged in the catch
plate using the multi-purpose tool supplied with the boiler.
•
Finally, remove any remaining deposits of ash from the bottom of
the combustion chamber and then re-fit the ash pan in the base
of the combustion chamber.
the boiler will perform an automatic brazier cleaning operation
when power to the boiler is re-connected.
nOtE
!
12.7.3 Photocell
Remove the photocell from the mount on the left side of the heat
exchanger. Check and clean the photocell. Replace if damaged. Refer
to Figure 12-20.
Figure 12-20:
Photocell location
12.8 ignition Element
Remove and check the condition of the ignition heater element.
To remove; first remove steel clip holding grommet in place. Grasp the
black grommet and pull the element from the mounting tube (on the
left side of the heat exchanger). Do NOT pull on the element power
cable. Refer to Figure 12-21.
Figure 12-21:
Ignition element location
Location flange
