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Modulating heat source
The modulation point is displayed with modulating heat sources. The
percentage of burner output to be used to perform the Flue gas test is
set here. If a parameter (e.g. minimum boiler output) falls below or
exceeds the preset value when making the adjustment, a warning
message appears and must be confirmed. The parameter remains at the
previous value.
▶ Adjusting modulation.
▶ Tap Save.
The Flue gas test starts immediately.
2
3
1
1
9
8
Fig. 15 Display Flue gas test
[1]
Actual Power
[2]
Boiler temperature
[3]
Flue gas inspector
[4]
Attention symbol
[5]
Flue gas test
[6]
Display of current value
[7]
Cancel
[8]
Save
[9]
Selection of burner stage or output set value (Modulation)
The heat source is operated at the set output or at the Maximum
temperature.
To close the view:
▶ Tap in the message window at the top on the right
The Flue gas test continues running in the background.
Tapping the
key ( Fig. 15, [3]) reopens the view for the
Flue gas test.
Tapping the
symbol ( Fig. 15, [4]) opens the screen in which
faults are displayed.
Control 8311/8313 – 6720859790 (2020/02)
4
5
6
67.3 °C
38 %
2
12:00
7
0010022281-002
.
Flue gas test
The Flue gas test can be exited in all display views.
To exit the Flue gas test:
▶ Press
button. A notice appears.
To close the notification window:
▶ Tap
at the top on the right.
-or-
▶ Press
until the notice confirming that the test is complete
appears in the window.
To close the notification window:
▶ Tap
at the top on the right.
If the Flue gas test is not ended manually, it ends automatically after 30
minutes.
The Flue gas test has no effect on the function of the heating circuits and
their settings.
3.7.3
Manual operation
NOTICE:
System damage due to incorrect use and deactivated functions!
A supply of heat from the heating system cannot be ensured for the
duration of the manual operation. The functions are disconnected from
the control so that removal of heat cannot be ensured.
▶ The Manual operation
qualified persons.
NOTICE:
Risk of damage to system due to destruction of components!
If the function check is performed without filling and sufficiently venting
the system, components such as pumps may be damaged beyond repair.
▶ To prevent components from running dry, fill and vent the system
before switching it on.
NOTICE:
Damage to system due to parameters not being matched to the
system!
If the heat source/system parameters are not matched, components may
be damaged beyond repair.
▶ Match the heat source with the system parameters during
commissioning.
WARNING:
Risk of scalding from hot water!
Setting the set temperature > 60 °C creates a risk of scalding.
▶ Do not draw off DHW unmixed.
Operation of the control unit
key must only be operated by
13
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