33
Overview of maintenance and cleaning work
Interval
Activity
System user
Heating con-
tractor
Before every heat-up
Check the ash chamber, clean if necessary.
X
Weekly
Clean the ash chamber.
X
After 100 hours run
Clean the tubular heat exchanger.
X
Check the fill level of the tubular heat exchanger ash pan,
empty the container if required.
X
After 300 hours run
Clean the sight glass.
X
Check the combustion chamber for deposits, clean if neces-
sary.
X
After 900 hours run, and at least once a year
Clean and calibrate the Lambda probe.
X
Clean the flue gas fan.
X
Check all gaskets for damage; replace if required.
X
Check the thermally activated safety valve for tightness.
X
Twice yearly
Thoroughly clean the boiler.
X
Every 5 years
Replace the battery inside the control unit.
X
Tasks for the system user
See operating instructions
Cleaning and calibrating the Lambda probe
Note
The Lambda probe can only be calibrated manually.
Cleaning the Lambda probe
Danger
A hot Lambda probe may cause burns.
■
Allow the Lambda probe to cool down before
removing.
■
Wear safety gloves.
1.
Remove the Lambda probe from the flue outlet.
2.
Clean the Lambda probe with a soft brush and vac-
uum cleaner.
3.
Check the Lambda probe for damage and replace
if required.
4.
Check the connecting cable for possible damage.
Notes
■
Do not paint, wax or treat the probe with any other
such substance. Only use special grease suitable for
Lambda probes to grease the threads.
■
The Lambda probe receives its reference air via the
connecting cable. For this reason, ensure that the
connection plugs are kept clean and dry and do not
treat them with contact spray, anti-corrosion agents
etc.
■
Do not solder the connecting cable; it must be crim-
ped, clamped or secured with screws.
Commissioning, inspection, maintenance
Maintenance and cleaning intervals
(cont.)
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