Ferroli BLUEHELIX 25 K 50 Instrucciones De Uso, Instalación Y Mantenimiento página 39

BLUEHELIX 25/32 K 50
Boiler electrically powered
Switch on the power to the boiler.
fig. 5 - Switching on / Software version
fig. 6 - Venting cycle
• During the first 5 seconds the display also shows the card software version
• For the following 300 seconds the display shows FH which identifies the heating
system air venting cycle.
• Open the gas cock 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
Switching the boiler off and on
Press the on/off button (detail 7 - fig. 1) for 5 seconds.
fig. 7 - Switching the boiler off
When the boiler is switched off, the electronic board is still powered. Domestic hot water
and heating are disabled The antifreeze system remains activated. To switch the boiler
on, press the on/off button (detail 7 - fig. 1) again for 5 seconds.
The boiler will be immediately ready to operate whenever domestic hot water is drawn
or in case of a room thermostat demand.
B
The antifreeze system does not work when the power and/or gas to the unit are
turned off. To avoid damage caused by freezing during long shutdowns in win-
ter, it is advisable to drain all water from the boiler, the DHW circuit and the
heating system water; or drain just the DHW circuit and add a suitable anti-
freeze to the heating system, as prescribed in sec. 3.3.
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fig. 8
cod. 3541H134 - Rev. 00 - 11/2018
2.4 Adjustments
Summer/Winter Switchover
Press the summer/winter button (detail 6 - fig. 1) for 2 seconds.
The display activates the Summer symbol (detail 10 - fig. 1): the boiler will only deliver
domestic hot water. The antifreeze system remains activated.
To deactivate the Summer mode, press the summer/winter button (detail 6 - fig. 1)
again for 2 seconds.
Heating temperature adjustment
Use the heating buttons (details 3 and 4 - fig. 1) to adjust the temperature from a min. of
20°C to a max. of 80°C.
DHW temperature adjustment
Use the DHW buttons (details 1 and 2 - fig. 1) to adjust the temperature from a minimum
of 10°C to a maximum of 65°C.
Room temperature adjustment (with optional room thermostat)
Using the room thermostat, set the temperature required in the rooms. If the room ther-
mostat is not installed, the boiler will keep the system at the set system delivery setpoint
temperature.
Room temperature adjustment (with optional remote timer control)
Using the remote timer control, set the required temperature in the rooms. The boiler will
adjust the system water according to the required room temperature. For operation with
remote timer control, please refer to the relevant instruction manual.
Hot water tank exclusion (economy)
Hot water tank temperature maintaining/heating can be excluded by the user. If exclud-
ed, domestic hot water will not be delivered.
The hot water tank can be deactivated by the user (ECO mode) by pressing the ECO/
COMFORT button (detail 7 - fig. 1). In ECO mode the display activates the ECO symbol
(detail 12 - fig. 1). To activate COMFORT mode, press the ECO/COMFORT button (de-
tail 7 - fig. 1) again.
Sliding Temperature
When the optional external probe is installed, the boiler adjustment system works with
"Sliding Temperature". In this mode, the temperature of the heating system is controlled
according to the outside weather conditions, to ensure high comfort and energy saving
throughout the year. In particular, the system delivery temperature is decreased as the
outside temperature increases, according to a specific "compensation curve".
With Sliding Temperature adjustment, the temperature set with the heating buttons (de-
tail 3 - fig. 1) becomes the maximum system delivery temperature. It is advisable to set
a maximum value to allow system adjustment throughout its useful operating range.
The boiler must be adjusted at the time of installation by qualified personnel. Possible
adjustments can in any case be made by the user to improve comfort.
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fig. 9
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fig. 10
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