Combustion
In case the combustion values found at the beginning of the inter-
vention do not respect the standards in force or, in any case, do
not correspond to a proper combustion, contact the Technical As-
sistant and have him carry out the necessary adjustments.
Allow the burner to work for 10 min. and then check the combus-
tion readings with the parameters indicated within the appliance
instruction manual. Then carry out a combustion check verifying:
– Smoke temperature at the chimney;
– Content of CO
(%);
2
– Content of CO (ppm);
– Smoke value according to opacity smokes index according to
Bacharach scale.
9.2.3
Maintenance position
Access to the combustion head, diffuser disc / electrodes
unit and nozzle (Fig. 21)
Remove the burner out of the boiler, after loosing the fixing
nut to the flange.
Hook the burner to the flange 1), by removing the combus-
tion head 2) after loosing the fixing screws 3).
Remove the diffuser disc-holder assembly 9) from the noz-
zle-holder 8) after loosing its fixing screw.
Screw the nozzle 10).
After carrying out maintenance, cleaning or
checking operations, reassemble the cover and
all the safety and protection devices of the burner.
2
3
4
6
5
20098581
Maintenance
1
D8056
D8057
Fig. 21
24
GB