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Figure 9.13
• The ignition/detection electrode P in Fig-
ure 9.13 also serves as a sensor for correctly
draining the condensate.
• If this electrode comes into contact with the
condensate water in the combustion cham-
ber, the boiler goes into safety lockout. Re-
place the insulation where wet or worn.
Remove any build-up from the ig-
nition/detection electrode, or re-
place it if worn/damaged. In any
case, it must be replaced every 2
years.
Figure 9.14
If there is any dirt on parts of the primary con-
- 70 -
MAINTENANCE
densate exchanger (which can be seen after
removing the burner casing), brush them with
a bristle brush and then remove the dirt using
a vacuum cleaner.
The burner does not require particular mainte-
P
nance, simply dust it off using a bristle brush.
More specific maintenance will be assessed
and performed by a technician from an Autho-
rised Service Centre.
9.8 Check the pressure in the heating
Empty the heating circuit as described in sec-
tion "Emptying the heating circuit" on page
68 and check that the expansion tank pres-
sure is not less than 1 bar.
If the pressure is lower, correct the pressure.
9.9 Cleaning the domestic hot water
Descaling the domestic hot water exchanger
will be assessed by a technician from an Au-
thorised Service Centre, who will perform the
cleaning using specific products.
9.10 Checking the flue gas expulsion
Have a technician from an authorised service
centre periodically check the condition of the
flue gas exhaust duct, the air duct and the ef-
ficiency of the flue gas safety circuit (at least
once a year).
For reassembly, repeat the opera-
tions but in reverse order, being
careful not to damage the gas pipe
OR gasket when the pipe is insert-
ed in the gas/air diaphragm. Carry
out the gas tightness test after
tightening the gas pipe swivel
joint.
expansion tank
exchanger
duct
- Quick Links:
- Assembly View
- Filling the Heating Circuit
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