Ferroli BLUEHELIX TECH RRT 24 H Instrucciones De Uso, Instalación Y Mantenimiento página 154

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
B
To avoid damage caused by 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.
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fig. 6- Vent with fan on
A
fig. 8- Turning the boiler off
cod. 3541C660 - Rev. 01 - 05/2018
BLUEHELIX TECH RRT 24 H
fig. 4- Boiler not electrically powered
B
fig. 7- Vent with fan off
C
EN