Ferroli BLUEHELIX TECH RRT 24 H Instrucciones De Uso, Instalación Y Mantenimiento página 158

Fault
In case of a fault (see cap. 3.4 "Troubleshooting") the display shows the fault code (detail 12 - fig. 1) and during safety
pause times the messages "d3" and "d4".
1.3 Connection to the power supply, switching on and off
Boiler not electrically powered
To avoid damage caused by
B
freezing during long idle periods
in winter, it is advisable to drain
all the water from the boiler.
Boiler electrically powered
Switch on the power to the boiler.
fig. 5- Switching on / Software version
• During the first 5 seconds the display shows the card software version (fig. 5).
• For the following 20 seconds the display will show FH which identifies the heating system air venting cycle with the
fan running (fig. 6).
• In the next 280 seconds, the venting cycle continues with the fan off (fig. 7).
• Open the gas valve ahead of the boiler
• When the message Fh disappears, the boiler is ready to operate automatically whenever domestic hot water is
drawn or in case of a room thermostat demand
Turning the boiler off and on
To switch modes, press the winter/summer/off button, for about 1 second, in the order indicated in fig. 8.
A = Winter Mode
B = Summer Mode
C = Off Mode
To turn the boiler off, press the winter/summer/off button (detail 7 - fig. 1) repeatedly until the display shows dashes.
158
fig. 6- Vent with fan on
A
fig. 8- Turning the boiler off
cod. 3541C662 - Rev. 00 - 09/2020
BLUEHELIX TECH RRT 24 H
fig. 4- Boiler not electrically powered
B
fig. 7- Vent with fan off
C
EN