Gas Conversion - Biasi RIVA COMBI Service Manual

___________________________________________________________________________________________________
Second Part
_______________________________________________________________
9

Gas Conversion

1) Check that the gas cock fitted on the gas
supply pipe is turned off and the appliance is
switched off at the circuit breaker.
2) Remove the front and side panels of the case.
3) Take off the lid of the sealed chamber.
4) Loosen the screws A on figure 9.1 and move
to the left the side panel of the combustion
chamber.
3,5 cm
A
1
A
Figure 9.1
5) Loosen the screws B and remove the air
deflector (figure 9.1).
6) Loosen the screws C and 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 9.1 follow the
arrows) and then pulling it outside the
combustion chamber (figure 9.2).
Figure 9.2
7) Remove the connections of the ignition and
detection electrodes.
8) Remove the burner moving it to the left,
rotating it upward and then pulling it outside
the combustion chamber (follow the arrows on
figure 9.3).
2
Figure 9.3
RIVA COMBI SERVICE MANUAL – REV A
M35.30CB
C
2
B
3
3
1
Maintenance Characteristic Verification
9) Carry out the conversion for the type of gas,
replacing the burner injectors correctly.
10) Re-assemble the burner, the front panel of
the combustion chamber and the lid of the
sealed chamber.
11) Extract the control panel.
12) Loosen the screws K and remove the service
panel (figure 9.4)
K
K
13) Set correctly the dip-switch "2" to the correct
position (Fig. 9.5) in accordance with the
following table.
Gas supply
Natural gas
L.P.G.
14) Close the service panel.
15) Turn on the boiler.
16) Calibrate the gas valve according to the
instructions given in the section 9 of the third
part of this manual.
17) Set the correct gas pressure for central
heating output required.
18) Stick on the inside of the left hand side panel
adjacent to the data badge the self-adhesive
label (included with the conversion kit)
indicating the type of gas, and the gas
pressures to which the appliance has been
set.
Reassemble the front and side panels of the
19)
case.
K
Figure 9.4
Position of the switch 2
On
Off
Natural gas L.P.G.
ON ON
1 2 3 4 1 3 4
2
OFF OFF
Figure 9.5
M35.30CB - 8