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2.7
Maintenance
To ensure safe and efficient operation of
the water heater it is recommended that
it is cleaned and serviced at least once a
year by a qualified competent person.
2.7.1 Magenesium anode
The life cycle of the anode is determined
by the quality and the quantity of the
water flowing through the water heater.
It is therefore recommended that the
anode be inspected and replaced if
necessary at least once a year.
1. Close the stop cock in the cold water
supply pipe;
2. Open the nearest hot water tap in
order to allow the pressure to drop
from the water heater and the pipes;
3. Slacken the anode with a fitting
wrench;
4. Check the anode and replace it if it
has been reduced in diameter by 60%
or more at any point on its lenght;
5. Check for water leaks.
If is necessary to replace the anode it
should be replaced by one of the same
type. The type of anode required can be
detemined on the basis of the type of the
appliance and the serial number.
Description
Supply pressure
Burner pressure
Diameter main injector
Diameter pilot injector
2.7.2
1. Close the gas supply and demount
the burner after it has cooled down
2. Disconnect the burner assembly from
the gas control
3. Remove the complete burrner
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
After cleaning of the pilot- and main
burner the operation of these should
be checked. If necessary the burner
pressure should be reset.
2.7.3
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.
2.7.4
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.
unit
G20
mbar
20
mbar
12.0
mm
3.40
mm
0.56/0.41
cleaning
Decalcification
spare parts
BTI 65
G30
30
-
1.90
0.23
G31
37
-
1.90
0.23
19
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