Fan Cleaning; Heat Exchanger Cleaning; Burner Assembly Cleaning - DeDietrich 310 ECO Series Installation And Operating Manual

15.4.4 Cleaning the fan
Use compressed air or a synthetic brush to clean the fan, be careful
not to disturb the balance clips on the vanes.
15.4.5 Cleaning the heat exchanger
Release the retaining nuts from heat exchanger cover plate,
remove plate, being careful not to damage the gasket, store safely.
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 boiler 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 contaminate the rest of the boiler and controls.
Replace the heat exchange plate after cleaning and retighten the
retaining nuts.
15.4.6 Cleaning the burner assembly
Clean the burner assembly by using compressed air only – between 30 – 70 psi [2-5 bar] with the nozzle
positioned a min of 3/8" [10mm] away and towards the face of the burner. Check the retaining bolts are tight. If
the burner is removed from the front plate ensure burner-retaining screws are tight on re-assembly
Fig. 33 – Burner cleaning with
compressed air and/or soft brush.
De Dietrich Gas 310/610 ECO
63
Fig. 31 fan being cleaned with soft brush
Fig. 32 – Heat exchanger opened for cleaning.