Remeha Selecta
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11.3 Maintenance
If during the annual inspection combustion results indicate that the boiler is no longer
operating at the optimum level, additional maintenance should be carried out as follows:
NOTE:
- Please ensure that the gas supply and mains power supply is isolated before any
maintenance work is carried out on the boiler
- Care should be taken when stripping the boiler for maintenance making sure that all
parts nuts, washers and gaskets etc. are kept safe, clean and dry for re-assembly
- A service gasket set is availlable please contact Broag for details
- Following maintenance/cleaning, the boiler should be re-assembled in the reverse
order re-placing gaskets and joints where found necessary.
- All general cleaning should be carried out with a soft brush or damp cloth to avoid
damaging components. (Solvents must not be used).
1. Isolate the electrical power supply to the boiler.
2. Close the boiler gas isolation valve.
3. Remove the front casing cover by unscrewing the 2 screws and lifting the panel
off the top plate.
4. Remove M5 nuts and bolts securing fan and air inlet assembly to venturi, discon-
necting electrical leads where necessary.
5. Remove M5 retaining nuts securing venturi to front plate.
6. Remove ignition cap/lead and earth lead from Ignition/ionisation electrode.
7. Cleaning the heatexchanger
- Release the retaining nuts from heat exchanger front plate, remove plate, be careful
not to damage the insulation plate or the burner connected to front plate, store
safely.
Attention:
Check
the cord gasket and the insulating plate between the front plate and
the heat exchanger. If damaged or hardened they must be replaced.
- Heat exchanger can be washed with clean water, if badly contaminated, clean with
a small stiff bristle “bottle type” brush or use the special cleaning tool (supplied
optional). Care should be taken when using water in the confined space of the boi-
ler casing to avoid contaminating the electrical controls. Compressed air can also
be used but care should be taken to ensure disturbed dust etc does not contami-
nate the rest of boiler and controls.
- When replacing the heat exchanger front plate – tighten the retaining nuts to a tor-
que of 8,5 Nm.
