Biasi RIVA COMBI Service Manual page 24

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Third Part
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L
10) Remove the screws M (Figure 3).
11) Remove the front panel of the combustion
chamber moving it to the left for about 1.5 in,
rotating it inside the combustion chamber
(Figure 6 follow the arrows) and then pulling it
outside the combustion chamber (Figure 7).
3,5 cm
2
A
1
A
Figure 6
12) Remove the heat exchanger moving it for
about 1.5 in, moving it downwards and then
pulling it outside (Figure 8).
RIVA COMBI SERVICE MANUAL – REV A
Figure 5
C
B
Figure 7
Figure 8
(edition-0106)
13) Reassemble the boiler carrying out the
removal operations in reverse order.
3 Cleaning
To clean the outside of the primary heat
exchanger, it is not necessary to drain the
primary circuit of the boiler. It is enough to open
the combustion chamber as previously described
without removing pipes.
To remove the fan in order to clean the upper
part of the heat exchanger, loosen the 2 screws
N as in (Figure 9).
3
If there are deposits of soot or dirt between the
blades of the heat exchanger, clean with a brush
or non-metallic bristle brush.
In any case, avoid any actions that can damage
the protective varnish with which the exchanger
has been covered.
Primary Heat Exchanger
N
Figure 9
2-2