Ferroli BLUEHELIX TECH RRT 28 С Instructions For Use, Installation And Maintenance page 167

BLUEHELIX TECH RRT 28 C
fig. 28
Checking the combustion values
MAKE SURE THE FRONT CASING IS CLOSED AND THE INTAKE/FUME EXHAUST DUCTS ARE COMPLETELY
ASSEMBLED.
1. Put the boiler in heating or DHW mode for at least 2 minutes. During this period if the flame symbol flashes on the
display, it means that the boiler is performing a calibration. Wait until the flame becomes steady (end of calibration).
2. Activate the TEST mode (see *** 'TEST mode activation' on page 169 ***).
3. By means of a combustion analyzer, connected to the points located on the starting accessories above the boiler,
check that the CO2 content in the fumes, with boiler working at maximum and minimum output, matches that given
in the following table.
Case studies
A New boiler (first ignition/conversion or electrode replacement)
B Boiler with at least 500 hours of operation
4. If the combustion values do not match, perform the 100% calibration as described in the following paragraph.
5. Case A: if the values still do not match, do not activate other calibrations, as the system needs to work longer to be
able to self-adapt.
6. Case B: if the values still do not match yet, proceed with activation of the parameter SC12 or SC13, depending on
the type of adjustment necessary (see *** '"Sc" - Combustion Control Parameters Menu' on page 174 ***)
100% calibration
IMPORTANT: DURING THE AUTOMATIC CALIBRATION PROCEDURE AND CHECK OF THE CO
FRONT CASING OF THE BOILER MUST BE CLOSED AND THE INTAKE/FUME EXHAUST DUCTS COMPLETELY
ASSEMBLED.
Calibration procedure.
• Put the boiler (preferably) in heating mode or else in DHW mode. Press the Reset button (ref. 6 - fig. 1) for 10 seconds.
• The display shows 100 and the text "Co" flashing; press the "Heating +" button (ref. 4 - fig. 1) to set and view 120.
• Then press the "DHW +" button (ref. 2 - fig. 1) to set 123.
• Press the Reset button (ref. 6 - fig. 1) once.
• The display shows Ts flashing; press the "heating +" button (ref. 4 - fig. 1) once.
• The display shows Sc flashing; press the reset button once.
• The display shows Sc alternating with 01 flashing;
• Press the "heating +" button (ref. 4 - fig. 1) until displaying Sc alternately with 15 flashing;
• Press the "DHW +" button and the display shows "00";
• Press the "DHW +" button and the display shows "01";
• Press the "heating +" button (ref. 4 - fig. 1) and the 100% calibration mode will activate, displaying the message "CA
" and "LI" alternating.
• At the end of calibration, the display will show Sc alternating with 15 flashing.
• Press Reset (ref. 6 - fig. 1) for 10 seconds to exit the Sc menu.
EN
cod. 3541N260 - Rev. 01 - 10/2017
1 1
2 2
fig. 29
G20 G30/G31
7.5%-9.9% 9%-11.5%
9%+/-0.8 10%+/-0.8
VALUE, THE
2
G230
9%-11.5%
10%+/-0.8
167