Cleaning The Heat Exchanger - IDEAL HE24 Installation And Servicing

49 CLEANING THE CONDENSATE TRAP/SIPHON
1. Remove the cleaning plug and allow any residual
condensate / debris to drain.

50 CLEANING THE HEAT EXCHANGER

1. Remove ignition and flame detection electrodes.
Refer to Frames 58 & 59.
2. Remove the 3 screws retaining the sump cover and
remove.
3. Using a suitable tool as supplied in the standard
British Gas Flue brush kit, clean between the heat
exchanger fins from the top of the heat exchanger.
4. Access to the base of the heat exchanger is now
possible. Brush clean any deposits from the base of
the heat exchanger and remove any loose deposits
from the sump.
5. Inspect the ignition and detection electrodes. Ensure
that they are clean and in good condition - replace if
necessary.
6. Check the condition of the combustion chamber
insulation. Any cracked or damaged pieces must be
replaced.
Note. Take care not to disturb the ionisation probes at the
front and rear of the combustion chamber.
7. Check that the ignition and detection gaps are
correct. Refer to Frames 58 & 59.
51 REASSEMBLY
Reassemble the boiler in the following order:
1. Refit the sump cover.
2. Refit the electrodes. (Check dimensions; Frames 58 & 59).
3. Refit the burner.
4. Refit the fan / venturi assembly.
5. Reconnect the fan electrical leads.
Esprit -
Installation and Servicing
SERVICING
1
2. If necessary pull off the top tube and flush out any
debris.
3. Replace the tube and cleaning plug.
2
Sump cover
2
6. Swing the control box back into its working position and
secure.
7. Re-fit the boiler front panel.
IMPORTANT.
8. Ensure that the boiler front panel is correctly fitted by
engaging the securing clips and that a good seal is made.
9. Turn on the gas supply at the gas service cock.
10. Reconnect the electrical supply.
3
Ionisation
probes
Heat exchanger
41