©
HDG Bavaria GmbH 07/2008
HDG M299/300/350/400 - Version 1 - en
7 Cleaning and servicing the heating system – Procedure
143
1.
Activate the maintenance function.
✎
See section “Maintenance function” in this chapter.
2.
Allow the fire in the heating system to burn out and cool down.
3.
Release the two M16 screws (2) (24 mm spanner).
4.
Fold open the cleaning shaft lid (1) towards the back.
Important!
When working on the boiler, the fall protection device must be
fitted If the room height is not sufficient for the assembly, the
height of the fall protection device must be adjusted.
Figure 7/11 - Fall protection
Figure 7/12 - Cleaning the cleaning shaft
1
3
2
Summary of Contents for M299
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