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Vitodens 100-W, B1HE/B1KE Combi Installation/Service
Service
Checking the Flue Gas Flapper
Back flue gas flapper in the mixing shaft of the burner
1. Undo 2 screws and remove fan A.
2. Remove flue gas flapper B.
3. Check the damper and gasket for dirt and damage.
Replace if necessary.
4. Refit flue gas flapper B.
Note: Observe correct installation position!
5. Refit fan A and secure with 2 screws.
Torque: 35 lb.in (4.0 Nm).
B1HE/KE 85 and 120
B1HE/KE 150 and 199
Checking and Adjusting the Ignition and Ionization Electrodes
Legend
A Ignition electrodes
B Ionization electrode
C Ionization electrode gap:
B1HE/KE 85/120 [ 0.40 in. ± 0.02 in. (10 mm ±0.5) ]
B1HE/KE 150/199 [ 0.47 in. ± 0.02 in. (12 mm ±0.5) ]
D Ignition electrode gap:
B1HE/KE 85/120 [ 0.25 in. ± 0.02 in. (6.5 mm ±0.5) ]
B1HE/KE 150/199 [ 0.24 in. ± 0.02 in. (6 mm ±0.5) ]
1. Check the electrodes for wear and contamination.
2. Clean the electrodes with a small brush (not a wire
brush) or sandpaper.
3. Check the electrode gaps. If the gaps are not as
specified or the electrodes are damaged, replace the
electrodes and gaskets and adjust them as required.
Tighten the electrode fixing screws to a torque of
40 lb.in (4.5 Nm).
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