Ferroli BLUEHELIX TECH RRT 24 H Instrucciones De Uso, Instalación Y Mantenimiento página 159

BLUEHELIX TECH RRT 24 H
When the boiler is turned off, the circuit board is still
powered. Domestic hot water and heating are disa-
bled. The frost protection system remains activated.
To relight the boiler, press the winter/summer/off bu-
tton (detail 7 - fig. 1) twice.
The boiler will be immediately ready in Winter and DHW mode.
The frost protection system does not work when the power and/or gas to the unit
B
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 antifreeze to the
heating system, as prescribed in sec. 2.3.
NOTE - If the sun symbol does not appear on the display but the multifunction numbers are present, the boiler is
in"Winter" mode.
1.4 Adjustments
Winter/summer switchover
Press the winter/Summer/off button (detail 7 - fig. 1)
until the display shows the Summer symbol (detail 10
- fig. 1): the boiler will only deliver domestic hot water.
The frost protection system remains activated.
To reactivate the Winter mode, press the winter/Sum-
mer/off button (detail 7 - fig. 1) twice.
Heating temperature adjustment
Use the heating buttons (details 3 and 4 - fig. 1) to ad-
just the temperature from a min. of 20°C to a max. of
80°C.
EN
cod. 3541C662 - Rev. 00 - 09/2020
fig. 9
fig. 10
fig. 11
fig. 12
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