Bosch Condens 7000 FP - Cleaning Burner and Heat Exchanger

Inspection and maintenance
43
Condens 7000 FP – 6721846699 (2022/12)
Fig. 56 Undo the connecting cable and nuts on the ignition transformer
[1] Ignition cable
[2] Ignition cable
[3] Monitor lead
[4] Fixing nuts (4x)
[5] Ignition transformer connecting cable
Fig. 57 Pull the burner back
[1] Mixture manifold
11.8 Cleaning the burner and heat exchanger
11.8.1 Clean the burner
With intensive contamination, the burner rod may be separated from the
mixture manifold and blown-out using a blower gun (max. 3 bar).
 Blow out the burner rod from the outside to the inside and vacuum
clean inside.
 Mount the burner rod with new gasket again.
11.8.2 Clean the heat exchanger
DANGER
Danger to life through escaping flue gas!
 During installation, look out for faulty gaskets and ensure they are
seated correctly. Replace faulty gaskets.
 Replace the gaskets as described ( Chapter 11.11.4, page 48).
 Dry and/or wet clean the heat exchanger.
 Shut down the heating system ( Chapter 9, page 33).
 Close the gas main shutoff valve or gas isolator.
 Allow floor standing boiler to cool down.
 Remove the front panels and corresponding side panels.
 Place the tundish that collects dirt and condensate residues under
the condensation catch pan.
 Pull the siphon [1] off the drainage connection of the condensation
catch pan [2] and out of the drain pipe. Turn slightly sideways in
doing so.
Fig. 58 Removing the siphon
[1] Siphon
[2] Condensation catch pan outlet
 Remove the screws from the cover of the condensation catch pan.
0010036144-001
1
2
3
5
4
0010036923-001
1
0010012553-001
2
1