Connection To The Power Supply, Switching On And Off - Ferroli BlueHelix HiTech RRT C Instructions For Use, Maintenance And Installation Manual

1.3 Connection to the power supply, switching on and off

Boiler not electrically powered
To avoid damage caused by freezing during long idle peri-
B
ods in winter, it is advisable to drain all the water from the
boiler.
Boiler electrically powered
Electrically power to the boiler.
MAIN FW 1.00
DSP FW 1.00
fig. 7- Switching on / Software version
•During the first 5 seconds the display shows the software version of the board and display (fig. 7).
•For the following 20 seconds the display will show FH which identifies the heating system air vent-
ing cycle with the fan running (fig. 8).
•In the next 280 seconds, the venting cycle continues with the fan off (fig. 9).
•Open the gas valve ahead of the boiler
•When the message Fh disappears, the boiler is ready to operate automatically whenever hot wa-
ter is drawn or in case of a room thermostat request
302
BlueHelix HiTech RRT C
FH
2%
fig. 8- Vent with fan on
cod. 3541V300 - Rev. 00 - 02/2021
Fh
6%
fig. 9- Vent with fan off
EN