COMMISSIONING
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G20 20 mbar
G230 20 mbar
G30 - G31 28/37 mbar
WARNING!!
THE AUTOMATIC CALIBRATION MUST BE DONE IN
CASE OF:
- REPLACEMENT OF: FAN, GAS VALVE, AIR/GAS
MIXER, BURNER, ELECTRODE.
- REPLACEMENT OF P.C.B.
- GAS CHANGEOVER
- ANY MODIFICATION TO THE FOLLOWING
PARAMETERS
220 - SOFT IGNITION
231 - MAX CH ADJUSTABLE
232 - MAX DHW PERCENTAGE
233 - MIN PERCENTAGE
234 - MAX CH PERCENTAGE
Example: Boiler adjusted for LPG
4
Gas
MAX
MIN
Gas
mbar
mbar
Gas Changeover
The boiler is factory setted for the gas type indicated on the
data plate. The adjustment, if necessary, must be performed
by a Qualied Technician. It is not necessary a conversion kit,
because the boiler has a auto adaptation gas system.
Proceed as indicated:
1. Change parameter 202 to the new gas (see Technical Area).
The display shows the error “The boiler must be calibrated”.
2. Turn the screw to position 2 on the gas valve
3. Perform the Atomatic Calibration and the CO
2
calibration as
indicated from page 18 to page 21.
Note: If the automatic calibration is not performed, the
system will perform the calibration during the rst ignition.
4. At the end apply the new label (supplied with the product),
as shown in the gure, indicated the new gas type used.
5. Verify and repair any leaks of gas.
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