53
AGUADENS
COSMOGAS
8 - MAINTENANCE
8.3 - Burner and fan removal
Proceed as follows to remove the burner fan unit (refer to
figure 8.2 when not differently specified):
1.- access the internal components following chapter 8.2;
2.- remove the air manifold (detail “C” in figure 6.2) rotating
it towards the outside of the appliance and then pulling it
towards the right (see figure 6.2);
3.- unscrew nut “C” from the valve “D”;
4.- disconnect the cables “B” and the detection cable from
the ignition and detection electrodes (details “15”, “34”
and “35” of figure 3.1);
5.- unscrew the four nuts “E”;
6.- extract the group “F” as per figure;
Figure 8.2 - Removing the burner fan unit
B
A
C
F
D
E
020003.01.024
8.4 - Gas burner and heat exchanger
outer surface cleaning procedure
To correctly clean the burner and body of the heat
exchanger (exhaust flue side), proceed as follows (refer to
figure 8.2 when not differently specified):
1.- access the internal components following paragraph 8.2;
2.- remove the burner unit following chapter 8.3;
3.- pass a cylindrical brush with plastic bristles inside the
combustion chamber
4.- use a suction device to remove the unburned residues
present inside the combustion chamber;
5.- use the same suction device on the surfaces of the
burner and around the electrodes;
6.- re-mount the components in reverse order;
7.- open the gas isolation valve;
8.- restore the electric power supply.
9.- check that there are no gas leaks on all internal joints;
ATTENTION!!! Perform the leak test using a soap
and water only. The use of naked flames is prohibited.
