Inspection and maintenance
Condens 7000 FP – 6721846699 (2022/12)
40
Fig. 47 Undoing the supply air hose
[1] Toggle clip
[2] Supply air hose
[3] Ventilation air collector
[4] Temperature switch / burner controller connecting cable
Loosen the gas pipe on the gas valve. For this purpose, remove the 4
screws on the flange (Fig. 48).
Fig. 48 Unscrew the screws on the air/gas ratio control valve
[1] Screws on the flange (4x)
Undo the temperature switch / burner controller connecting cable on
the mixture manifold (Fig. 47).
Undo the connecting cable on the ignition transformer (Fig. 49,
[5]).
Undo the electrical connections at the air/gas ratio control valve and
fan (Fig. 52, page 41).
Remove the hoses on the differential pressure sensor (Fig. 52).
Remove the 4 fixing nuts (Fig. 49, [4]) at the top on the mixture
manifold.
Fig. 49 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
Pull the mixture manifold with burner rod and fan back to the end
position (O-ring on the guide pin) (Fig. 50).
Fig. 50 Pull the burner back
[1] Mixture manifold
Install the insertion aid. When delivered, the insertion aid is attached
on the upper cover plate (Fig. 51).
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