Viessmann Vitoligno 200-S Installation And Service Instructions Manual page 41

Cleaning the Lambda probe and air dampers
Removing the maintenance cover
Fig. 28
Performing maintenance
B
Fig. 29
A
C
A
Commissioning, inspection, maintenance
(cont.)
Remove maintenance cover
boiler.
1. Remove Lambda probe
wire brush or oil-free compressed air.
2. Check the Lambda probe for damage and replace
if required.
3. If the Lambda probe needs to be replaced:
Pull out spring clip
B
probe from its retainer.
4. Remove air dampers C
brush or oil-free compressed air.
5. Calibrate the Lambda probe. See page 67.
on the back of the
A
. Carefully clean with a
A
and remove the Lambda
and clean with a wire
41