69
EN
Cod. 3542B230 - Rev. 00 - 02/2022
OMNIA S HYBRID H 3.2
11.2.3 Successive boiler switch-ons
Every time the unit is powered on, the firmware versions (display) are shown. FH (5 sec) will then appear
on the display, followed by Fh (300 sec) which indicates
the air vent cycle (this cycle is only performed if at least one function, heating and/or DHW are set to ON).
11.2.4 Transformation of boiler gas feed
The appliance can operate with a gas supply from the II
a
or III
a
family and is clearly indicated on the packaging and technical data rating plate of the appliance. If it is
necessary to use the appliance with a different gas than the set one, proceed as follows:
1. disconnect the power supply and close the gas.
2. Remove the front panel (see “7.9.1 Opening the front panel" on page 42
)
.
3. Apply the rating plate for LPG gas provided in the document bag, near the technical data rating plate.
4. Put the front panel back in place and power up the boiler.
5. Modify the parameter to type of gas:
• Enter the main menu [MENU ] with the button.
• Follow the installer menu path [Service] >enter the password 1234 >parameter mode [TSP].
• Select parameter b03 with SW1 and SW2 and set the corresponding value with the SW6 and SW7 buttons:
0 =G20
1 =G30/G31
2 =G230
• Press the button to confirm.
• Disconnect the electrical power for 10 seconds and then, reconnect it.
• Wait until Fh mode has finished.
• Put the boiler in stand-by and enable calibration mode [AUTO SETUP] (see “Boiler calibration procedure [AUTO SETUP]" on page 69).
11.2.5 Checking the boiler combustion values
MAKE SURE THAT THE FRONT PANEL IS CLOSED AND THE FUME EXTRACTION/EXHAUST PIPES ARE FULLY ASSEMBLED.
1. Put the boiler in heating or DHW mode for at least 2 minutes.
2. Enable the Test mode [Test] (see “11.2.6 Boiler test mode [Test]" on page 70).
3. Using a combustion analyser, connected to the pre-configured parts on the starting accessories on the boiler, check that the CO
2
content in the fumes, with the
boiler operating at maximum and minimum power, corresponds to the values in the following table.
Case study
G20
G30/G31
G230
A
New boiler (first switch-on/transformation 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
4. If the combustion values do not correspond, adjust the Offset values in the Test mode as described in the following paragraph.
CAUTION
During the CALIBRATION PROCEDURE [AUTO SETUP], the TEST PROCEDURE [Test] or during
the CO
2
VALUE CHECK, the FRONT PANEL must be CLOSED and the FUME EXTRACTION/EXHAUST PIPES fully
assembled. The boiler must also not be in OFF mode (see detail C in fig. 11) and there must not be a request from
the DHW or heating circuit.
Boiler calibration procedure [AUTO SETUP]
1. Enter the parameters menu [TSP].
2. Select parameter b27 with the SW1 and SW2 buttons and set it to 5 with the SW6 and SW7 buttons. Con-
firm with the button. Return to the main menu [MENU].
3. Go back to the installer menu [Service] >enter the password 1234. The menu for the calibration [Auto
Setup] is now displayed.
4. Select and confirm it with the button.
5. The procedure will start automatically and find the optimal ignition point (a few tries are required to deter-
mine the exact point).
6. After ignition, the burner is positioned at the various powers (max, med, min) indicated by the point
a
("fig. 47 -").
7. After the calibration sequence has finished, the message [Completed] will be displayed for a few seconds
before returning the Service menu.
8. If the ignition sequence described in point “6” is not successful, the message max_err will appear at point
a
and an error code at point
c
("fig. 47 -").
9. Exit with the SW4 button and unlock the boiler. Repeat the sequence from point “1”.
c
fig. 47 -
The calibration procedure [Auto Setup] can only performed if parameter b27 is set to 5.
Parameter b27 can be set to 5 manually or in the following ways:
• by modifying the “gas type” parameter b03.
• by setting parameter P67 to 1.
• by modifying the value of parameter P68.
