Buderus 500-24C Installation And Maintenance Instructions Manual page 48

4
Maintenance
V Remove the glow ignitor (
tion electrode ( fig. 55, item 2).
V Mount a new glow ignitor with mounting plate and nut.
V Mount the old ionisation electrode with a new seal,
mounting plate and nut.
V By turning the unit a quarter turn (
unit can be removed by lifting it out of the boiler
( fig. 69, step 2).
V Clean the burner when necessary. The burner may only
be cleaned with a soft brush or compressed air.
Caution:
Replace the burner seal after removing the
burner from the gas air unit.
V Now the front cover of the heat exchanger can be
removed by opening the latches (
V Remove the restrictor baffle from the heat exchanger
( fig. 70, item 1).
V Inspect the heat exchanger. When required, clean the
heat exchanger with a soft brush or compressed air.
NOTE
Only when a heat exchanger is heavily soiled
is it recommended to drain the system, to re-
move the heat exchanger for cleaning.
V Check the seal for damage. Always replace the seal if
in doubt.
48
fig. 55, item 1) and ionisa-
fig. 69, step 1), the
fig. 65, item 1).
Buderus 500-24C/28C - Subject to modifications resulting from technical improvements
2
Fig. 68 Remove the glow ignitor and ionisation elec-
trode
1
Fig. 69 Remove gas air unit
1
Fig. 70 Remove restrictor baffle
1
7215 3100-082.1TD
2
7215 3100-67.1TD
7215 3100-68.1TD