Ferroli BLUEHELIX TECH RRT 28 С Instructions For Use, Installation And Maintenance page 168

Loading parameters with KEY
The "KEY" device allows the updating of combustion parameters for boiler type.
It is used to update the parameters or in case of circuit board replacement.
To update, disconnect the power supply, open the electrical box and insert the "KEY" device as per the instructions
provided with the kit (see also fig. 30). Close the electrical box and turn on the power to the boiler.
The display will show FH. If the system has not been drained, it is possible not to perform the "FH" phase by pressing
the button ref. 7 of fig. 1 for a few seconds. If the system has been drained, repeat the "FH" cycle.
After the cycle, the display will indicate error F67. Enter the Sc parameters (see *** 'Adjustments' on page 166 ***), scroll
to parameter SC16 by pressing the Heating "+" button.
Press the DHW "+" button to display "00".
Press the DHW "+" button once more to display "01".
Press the Heating "+" button.
The display shows "bCLd" which indicates the transfer of parameters from the KEY to the board.
If the display shows the message "ErLd" it means that the transfer of data was unsuccessful. Repeat the parameter
loading operation.
Once the transfer is complete, the display shows ECO and the delivery temperature.
Now proceed with the 100% calibration (see *** '100% calibration' on page 167 ***).
168
BLUEHELIX TECH RRT 28 C
1
X06
fig. 30- KEY insertion
cod. 3541N260 - Rev. 01 - 10/2017
2
X06
3
X06
EN