321
EN
cod. 3541V620 - Rev. 00 - 05/2021
ALHENA TECH H
The
calibration procedure [Auto Setup]
resets the combustion parameters previously recorded
and must be done only in the cases described above.
Test mode [Test]
Do a heating or DHW request (with optional hot water tank connected).
1. Access the
Main menu [MENU]
with the
button .
Follow the path
installer menu [Service]
>enter the
Password 1234
(see fig. 17)
>
test mode menu [Test]
.
Confirm with the button
.
2. After ignition, the power goes to Medium
"med". When the combustion value is
stable, "med ok" is displayed (point
).
3. The heating buttons are used to vary the
4 power levels: min (Minimum power),
med (Medium power), max CH (CH Max-
imum power) and max (DHW maximum
power) (point
).
4. Only when the
step
value at the set pow-
er is followed by "ok" (med ok, min ok...)
can the CO
2
be adjusted with the DHW
buttons. Pressing the
DHW
button will
increase the “Offset” value by one unit
(point
). Pressing the
and
DHW
buttons for more than 2 sec. will change
the Offset value by 3 units.
When the Power value is followed by "ok"
the combustion value will be saved.
5. The “Offset” adjustment range is from -8
to +8. Increasing the value decreases the
CO
2
, decreasing it increases the CO
2
.
The CO
2
adjustment must not be done
with less than 500 burner operation
hours, because the system adjusts itself.
fig. 39
To exit the mode, just press the button
.
If the
Test mode [Test]
is active and enough hot water is drawn to activate the
DHW mode
, the
boiler remains in
Test mode [Test]
but the 3-way valve switches to DHW.
The
Test mode [Test]
is automatically disabled in any case after 15 minutes.
Installer menu [SERVICE]
ONLY QUALIFIED PERSONNEL CAN ACCESS THE SERVICE MENU AND MODIFY PARAM-
ETERS.
Access the
Main menu [MENU]
with the button
.
Follow the path
installer menu [Service]
>enter the
Password 1234
(see fig. 17). Confirm with
the button
.
a
a
b
TEST
Step:
Offset:
Power:
CH temp:
med ok
0
53%
43°
Alarm:
none
a
b
Summary of Contents for ALHENA TECH 28 H
Page 45: ...45 IT cod 3541V620 Rev 00 05 2021 ALHENA TECH H fig 48 fig 49 fig 50 5 6 6 ...
Page 103: ...103 ES cod 3541V620 Rev 00 05 2021 ALHENA TECH H fig 48 fig 49 fig 50 5 6 6 ...
Page 160: ...160 RO cod 3541V620 Rev 00 05 2021 ALHENA TECH H fig 48 fig 49 fig 50 5 6 6 ...
Page 217: ...217 PL cod 3541V620 Rev 00 05 2021 ALHENA TECH H wygląd 48 wygląd 49 wygląd 50 5 6 6 ...
Page 275: ...275 EL cod 3541V620 Rev 00 05 2021 ALHENA TECH H İȚț 48 İȚț 49 İȚț 50 5 6 6 ...
Page 330: ...330 EN cod 3541V620 Rev 00 05 2021 ALHENA TECH H fig 48 fig 49 fig 50 5 6 6 ...
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