38
13.0 Servicing
© Baxi Heating UK Ltd 2007
13.1 Annual Servicing (Cont)
12. Ease the front edge of the left hand baffle upwards,
disengaging the spring clip. Disengage the tabs on the baffle
from the slots in the fan hood (Fig. 55).
13. Undo the screws securing the fan and hood to the
appliance back panel. Draw the assembly forwards (Fig. 56).
14. On 28 HE models undo the screws securing the burner
to the injector manifold.
15. Draw the burner out of the combustion box, pulling the
electrode grommets from the slots in the combustion box
lower panel (Fig. 57).
16. Disconnect the electrode leads and grommets from the
electrodes. Completely remove the burner (Fig. 57).
17. Brush any deposits from the injectors. Do not use a pin
or wire to clean them.
18. Brush the burner blades and venturis and clean the
combustion box.
19. Ensure that the heat exchanger fins are clear of any
obstruction.
NOTE: If necessary the secondary heat exchanger may
be dismantled - see section 14.23.
20. Check that the pressure vessel charge is 0.5bar and
reassemble in reverse order of dismantling.
21. Turn the selector switch fully anticlockwise against the
spring pressure to position R and hold for 2 seconds to reset
the boiler before recommissioning.
22. Complete the relevant Service Interval Record section of
the Benchmark Commissioning Checklist at the rear of this
publication and then hand it back to the user.
Burner
Electrode
Grommets
Fig. 57
Spring Clip
Fan and Hood
Assembly
Baffle
Tab
Fig. 55
Fig. 56
To Next Page
Loading...
Need help?
General
