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Vitodens 100-W, B1HE/B1KE Combi Installation/Service
Service
Removing the Burner
Note: If the programming unit is located at the top: Move
the programming unit down into the maintenance
position. See page 46.
B1HE/KE 85/120
B1HE/KE 150/199
1. Turn off the ON/OFF switch.
2. Close the gas shut-off valve and safeguard against
reopening.
3. Disconnect cables and leads from:
Fan motor A (2 plugs)
Ionization electrode B
Ignition unit C
Ground D
4. Undo gas supply pipe fitting E.
5. Undo screws F and remove the burner.
Note: Cover gas connection E (B1HE/KE 85/120)
so that no small parts can fall into it.
Always hold the fitting of the gas connection pipe with
a suitable open-ended wrench.
Use a two handed wrench method when tightening fittings,
and ensure that the corragated gas line does not twist.
The gas pipe must not touch any other components.
Do not use pliers or similar tools.
IMPORTANT
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