242
EN
cod. 3540000251 - Rev. 00 - 03/2024
ALHENA C
1.4 Adjustments
Winter/summer switchover
Press the
winter/Summer/off
button (detail
7 - fig. 1) until the
winter
icon disappears
(detail 10 - fig. 1): the boiler will only deliver
domestic hot water. The frost protection sy-
stem remains on.
fig. 9
To reactivate Winter mode, press the
win-
ter/Summer/off
button twice (detail 7 -
fig. 1).
fig. 10
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.
fig. 11
DHW temperature adjustment
Use the DHW buttons (details 1 and 2 -
fig. 1) to adjust the temperature from a min.
of 40°C to a max. of 55°C.
B
If little water is drawn
and/or with a high wa-
ter inlet temperature,
the DHW outlet tem-
perature may differ
from the set tempera-
ture.
fig. 12
Room temperature adjustment (with optional room thermostat)
Using the room thermostat, set the temperature required in the rooms. If the room thermostat is
not installed, the boiler will keep the system at the set system delivery setpoint temperature.
