Clean Air Control Unit - HDG Euro 30 Operation Manual

7 Cleaning and servicing the heating system – Procedure
76
3. Remove the four M8 nuts (3) with a 13 mm spanner.
4. Remove the flue gas fan (1), including the flange plate (4), from the
boiler.
Figure 7/18 - Cleaning the flue gas fan
5. Clean the flue gas collection box (1).
6. Clean the fan wheel (3) and the annular gap behind it with a
cleaning tool.
7. Inspect the seal and the contact surfaces (2) around the flue fan
and the flue gas collection box.
8. Replace the seal if it is damaged.
9. Reinstall the flue gas fan in the reverse sequence.
✓
The flue gas fan has been cleaned.
C
LEAN AIR CONTROL UNIT
Important!
✎
Observe the "Generally applicable safety instructions" in this
section.
1. Allow the fire in the boiler to burn out and cool off.
1
2
3