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Inspection and maintenance
11.7.1 Burner in maintenance position
CAUTION
Risk of burning due to hot surfaces!
Individual components of the boiler can become very hot even after
being shut down for a long time.
▶ Allow the boiler to cool down.
▶ If necessary, wear protective gloves.
▶ Shut down the heating system (Chapter 9.1, page 33).
▶ Remove the boiler front panel and front side panels
(Chapter 11.1, page 34).
▶ Undo toggle clip (Fig. 54, [1] at the ) top of the supply air collector.
▶ Remove the supply air hose (Fig. 54, [2] ) from the upper inlet
duct.
If the supply air hose at the top is released, it can be turned to the front
with the supply air collector.
▶ Remove the 4 screws on the flange of the gas pipe (Fig. 55).
▶ Remove the plug screw on the air/gas ratio control valve (Fig. 55).
▶ Remove the hoses on the differential pressure sensor (Fig. 55).
▶ Undo the temperature switch / burner controller connecting cable on
the mixture manifold (Fig. 54).
▶ Undo the connecting cable on the ignition transformer (Fig. 56,
[5]).
▶ Unplug the plug on the fan (Fig. 53, page 41)
▶ Remove the 4 fixing nuts (Fig. 56, [4]) at the top on the mixture
manifold.
Application of lubricating paste on the guide pins facilitates pulling the
burner forwards.
42
▶ Pull the mixture manifold with burner rod and fan back to the end
position (O-ring on the guide pin) (Fig. 57).
1
2
3
Fig. 54 Undoing the supply air hose
[1]
Toggle clip
[2]
Supply air hose
[3]
Ventilation air collector
[4]
Temperature switch / burner controller connecting cable
Fig. 55 Undo the plug, hoses and gas supply pipe
Condens 7000 FP – 6721846699 (2022/12)
4
0010036138-001
0010046217-001
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