©
HDG Bavaria GmbH 06/2008
HDG Euro V3.0 with HDG Lambda Control 1 - V 1 - en
5 Cleaning and maintaining the HDG Euro – How to proceed
49
✓
The cleaning of the lambda sensor is completed.
Inspecting and cleaning the flue gas sensor
1.
Allow the fire in the boiler to burn out.
✎
See section “4.1 Overview of the controls and display
components” in chapter “4 Using the HDG Euro”.
2.
Using light pressure, rotate the flue gas sensor (1) downwards
one quarter turn in an anticlockwise direction.
3.
Pull the flue gas sensor (1) out of the holder (2).
4.
Clean the sensor surface.
5.
Reinstall the flue gas sensor (1) in the reverse sequence.
✓
The cleaning of the flue gas sensor is completed.
Tightness
When reinstalling the lambda sensor, make sure its seal is intact.
Use a pipe wrench to tighten the union nut (1). Do not overtighten!
Never tighten the lambda sensor by the shaft body.
The operating status of the HDG Euro must be indicated with
“
Heat production off
” in the display of the HDG Lambda
Control.
Caution!
Danger of burns from hot surfaces.
The surfaces of the boiler can be hot. Even when turned off, they
only cool down slowly.
Do not start with the maintenance work until the surfaces have
cooled down.
Figure 5/11 - Cleaning the flue gas sensor
1
2
Содержание Euro V3.0
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