Connection To The Power Supply, Switching On And Off - Ferroli BLUEHELIX HITECH RRT K 50 Instructions For Use, Installation & Maintenance

1.3 Connection to the power supply, switching on and off

Boiler not electrically powered
To avoid damage caused by freezing during long idle pe-
B
riods in winter, it is advisable to drain all the water from the
boiler.
Boiler electrically powered
Electrically power 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
venting 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
water is drawn or in case of a room thermostat request
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BLUEHELIX HITECH RRT K 50
FH
2%
fig. 8- Vent with fan on
cod. 3541Z783 - Rev 00 - 03/2024
Fh
6%
fig. 9- Vent with fan off
EN