Ferroli BlueHelix HiTech RRT C Instructions For Use, Installation & Maintenance page 362

In each of the above cases, b27 automatically changes to 5.
It is necessary to perform the calibration procedure [Auto Setup] in the following cases:
• after replacing the PCB
• after changing the gas (b03)
• setting parameter P67 to 1
• after changing the value of parameter P68 and/or P66
• after setting parameter b27 to 5 for replacement of components such as the electrode, burner,
gas valve, fan or for installations with maximum flue resistance
• in case of fault conditions A01, A06 or other faults when required (see table 11. Respect the
sequence of fault cures).
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.
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 be adjusted with the DHW
2
buttons. Pressing the
increase the "Offset" value by one unit
(point ). By pressing the
b
DHW buttons for more than 2 sec., the
Offset value will change by 3 units (Offset
adjustment is possible only in steps:
max, med and min).
When the Power value is followed by "ok"
the combustion value will be saved.
To exit the test mode [Test] hold down 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 or by stopping hot
water draw-off (if enough hot water was drawn to activate the DHW mode).
362
.
a
).
a
DHW button will
and
cod. 3541V304 - Rev. 00 - 03/2024
BlueHelix HiTech RRT C
5. The "Offset" adjustment range is from -8
to +8. Increasing the value decreases the
CO , decreasing it increases the CO
2
The CO
2
with less than 500 burner operation
hours, because the system adjusts itself.
TEST
).
Step:
Offset:
Power:
CH temp:
Alarm:
.
adjustment must not be done
a
med ok
b
0
53%
43°
none
fig. 54
.
2
EN