Viessmann Vitodens 200-W B2HE Installation And Service Instructions Manual page 48

Commissioning, inspection, maintenance
Removing the burner
4x
F
D
C
B
A
Fig. 39
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)
■ Ionisation electrode
■ Ignition unit
C
Earth
■ D
48
(cont.)
E
B
4. Undo gas supply pipe fitting
5. Undo four screws
F
Note
Cover gas connection
can fall into it.
E .
and remove the burner.
E so that no small parts