272
cod. 3540000251 - Rev. 00 - 03/2024
EN
ALHENA C
power levels
"Hi","ME"
and
"Lo"
can be scrolled by pressing the
"H or -"
buttons to
recheck or correct the CO
2
value.
• Press the
“OFF/Summer/Winter”
and
“H”
buttons for 5 seconds to exit the complete
manual calibration mode and save the settings. Modifying the parameters for adjusting the CO
2
in complete manual calibration mode takes not more than about 8 minutes.
TEST mode activation
Do a heating or DHW request.
Press the heating buttons (details 3 and 4 - fig. 1) for 5 seconds to activate
TEST
mode. After igni-
tion, the boiler adjusts to maximum heating power (parameter
P41
defines the maximum heating
power and changes according to the selected boiler model).
The Heating and DHW symbols (fig. 45) flash on the display and the set power will appear.
fig. 45- TEST mode (heating power = 100%)
Press the heating buttons (details 3 and 4 - fig. 1) to increase or decrease the power (Mini-
mum=0%, Maximum=100%).
By pressing the DHW
“-” button
(detail 1 - fig. 1), boiler output is immediately adjusted to mini-
mum (0%).
Wait about 1 minute for stabilisation.
By pressing the DHW
“+” button
(detail 2 - fig. 1), boiler output is immediately adjusted to maxi-
mum (100%).
If the TEST mode is activated and enough hot water is drawn to activate the DHW mode, the boiler
remains in TEST mode but the 3-way valve goes to DHW.
To deactivate the TEST mode, press the heating buttons simultaneously (details 3 and 4 - fig. 1)
for 5 seconds.
The TEST mode is automatically disabled in any case after 15 minutes or on stopping of hot water
drawing (if enough hot water is drawn to activate DHW mode).
Heating power adjustment in TEST mode
To adjust the heating power (in addition to parameter
P41
modification) put the boiler in TEST mo-
de. Press the
"h or -”
buttons to increase or decrease the power. Press the
reset
button
for 1 second within 20 seconds after the modification and the maximum power will remain that just
set (settable range
0 ÷ 95
). Exit
TEST
mode.
