328
EN
cod. 3541V481 - Rev. 00 - 06/2021
3. Service and maintenance
B
All adjustments described in this chapter can only be
carried out by qualified personnel.
3.1 Adjustments
Gas conversion
The unit can work with
2
nd
or
3
rd
family gases, which is clearly indicated on the packaging and on
the data plate of the unit. If the unit has to be used with a gas other than the factory-set one, pro-
ceed as follows:
1. Disconnect the power supply and turn off the gas.
2. Remove the front panel (
see *** 'Opening the front panel' on page 336 ***
).
3. Apply the plate for LPG (contained in the document bag) near the technical data plate.
4. Refit the front panel and turn on the power to the boiler.
5.
Modify the parameter for the type of gas
:
Access the
Main menu [MENU]
using the button
.
Follow the path
installer menu [Service]
>enter the
Password 1234
(see fig. 17) >
param-
eters menu [TSP]
.
Using the buttons
and
Heating,
select parameter
b03
and set the corresponding val-
ue with the buttons
and
DHW
:
0 =G20
1 =G30/G31
2 =G230
To confirm, press the button
.
Turn the power off for 10 seconds and then back on.
Wait until the
Fh
mode has finished.
Put the boiler in standby mode and activate the
calibration mode[AUTO SETUP]
(see ***
'IMPORTANT' on page 328 ***).
Checking the combustion values
MAKE SURE THE FRONT PANEL IS CLOSED AND THE INTAKE/FUME EXHAUST DUCTS
ARE COMPLETELY ASSEMBLED.
1. Put the boiler in heating mode for at least 2 minutes.
2. Activate the
Test [TEST]
mode (see *** 'Test mode [Test]' on page 330 ***).
3. Using a combustion analyzer connected to the arrangements located on the starting accesso-
ries above the boiler, with boiler operating at maximum and minimum power check that the CO
2
content in the fumes matches that indicated in the following table.
4. If the combustion values do not match, adjust the Offset values in the
Test mode
as described
in the following paragraph.
IMPORTANT
B
During the CALIBRATION PROCEDURE [AUTO SET-
UP], the TEST PROCEDURE [TEST] or during the CO
2
Case studies
G20
G30/G31
G230
A
New boiler (first ignition/conversion or electrode replacement)
7.5%-9.9%
9%-11.5%
9%-11.5%
B
Boiler with at least 500 hours of operation
9%+/-0.8
10%+/-0.8
10%+/-0.8
Summary of Contents for 0T4D1AWA
Page 1: ...INSTRUCTIONS FOR USE INSTALLATION AND MAINTENANCE ...
Page 39: ...334 EN cod 3541V481 Rev 00 06 2021 fig 40 ...
Page 45: ...340 EN cod 3541V481 Rev 00 06 2021 fig 48 fig 49 fig 50 ...
Page 53: ...348 EN cod 3541V481 Rev 00 06 2021 4 4 Technical data table ...
Page 54: ...349 EN cod 3541V481 Rev 00 06 2021 ...
Page 55: ...350 EN cod 3541V481 Rev 00 06 2021 ...
Page 56: ...351 EN cod 3541V481 Rev 00 06 2021 ...
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