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2.8.2 Cleaning
1. Close the gas supply and demount
the burner after it has cooled down,
2. Disconnect the burner, pilot pipe and
thermo couple from the gas control
block (see Figure 11),
3. Remove the complete burner
assembly,
4. Clean the burner with a soft brush.
5. Check the pilot burner and clean it if
so required,
6. Check the combustion chamber, flue
tube and flue baffle and clean these
if required,
7. Re-mount in reverse order. Tighten
the thermo couple connection on the
gas control block hand tight and
tighten it further with a wrench to a
maximum of 1/4 turn as it only needs
to make contact.
After cleaning of the pilot- and main
burner the operation of these should be
checked. If necessary the burner
pressure of the main burner should be
reset.
2.8.3 Inspection of the internal
waterside surfaces
Formation of lime scale depends on the
quality and quantity of the water used.
In addition higher water temperatures
lead to more deposit in the appliance. A
temperature setting of 60°C is
recommended in order to keep the
calcification at a low level.
Decalcification should be attempted with
the proper means. For extensive
information a decalcification instruction
is available.
2.8.4 Spare parts
To be able to order spare parts it is
important to note the type of appliance
as well as the serial number of the
appliance. Based on this information the
data concerning the spare parts can be
determined.
2.9 Inlet combination
Not applicable in U.K. and Ireland.
Figure 11- Mounting burner-set
AOS 0488