33
- Press the heating function's "-" button: the burner's
power level will be set to minimum Turn the adjust-
ment screw (2) to adjust the combustion, and bring
the CO
2
to the values indicated in the table
VERVE i 50
CO
2
+
2
Fig. 41
The following table shows the CO
2
values for Methane and
LPG, at the maximum and minimum power levels.
Natural gas
LPG
Maximum output
9.0 - 9.2
10.5-11.0
Minimum output
9.0 - 9.2
10.5-11.0
4 7 Changing Gas - Methane-LPG
transformation
The boiler is predisposed for use with methane gas.
This predisposition can only be modified using the transfor-
mation kit supplied by the manufacturer.
The modification can only be performed by the authorized
Technical Assistance Centre, using the following proce-
dure.
- Shut off the boiler's electrical power supply and close
the gas valve.
b
The electrical power supply must be disconnected
using the omnipolar switch, which must be installed
outside the boiler during the appliance's installation
phase.
b
While shutting off the boiler using the ON/OFF button
on the control panel renders the appliance inactive,
its components are nevertheless still receiving elec-
trical power.
- Insert the appropriate "A" diaphragm
VERVE i 50
A
Fig. 42
- Perform the proper setting of the P0 jumper (see J3 in
Fig. 7), as indicated in the following table, based on
the relative gas
Natural gas
LPG
P0
P0
- Reactivate the electrical power supply and the gas
supply, and turn on the boiler
- Perform the adjustment as described in the section "
