Buderus Logano GA124 Installation And Maintenance Instructions Manual page 52

11 Boiler inspection and maintenance
Removing venting fan
12. Remove rear boiler jacket.
13. Slide fan manifold into the venting adapter in the
direction of the arrow to the stop.
14. Pull off connecting hose for differential pressure
connection on measuring points on fan.
15. Disconnect electrical wiring.
16. Unscrew the four screws of the fan retainer panel.
17. Lift fan with retainer panel slightly and remove.
18. Check fan blades for dirt and clean if necessary.
19. If the hot gas ducts are dirty clean boiler.
20. Cover control with foil to prevent entry of metal dust
into the control.
21. Use boiler brush to clean out flue gas passages.
22. Clean combustion chamber and bottom insulation.
11.5.2 Wet cleaning (chemical cleaning)
For the wet cleaning use a suitable cleaning agent for
the degree of build-up of dirt (soot or scale).
Use the same procedure as described for cleaning with
brushes ( Chapter 11.5.1, page 50).
USER NOTE
Observe the directions for use of the
cleaning agent. In some case you may
need use a different procedure from that
described here.
52 Installation and maintenance instructions Logano GA124 special gas-fired boiler • Issue 04/2005
Fig. 51 Removing rear boiler jacket
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Fig. 52 Removing venting fan
1 Pressure measurement point on fan
2 Fan manifold
3 Fan retainer panel
Fig. 53 Cleaning with brushes
We reserve the right to make any changes due to technical modifications.
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