41
Yes
Automatic calibration of
the combustion controller
No
Fault F.62, F.373
Ensure adequate heat trans-
fer. Reset device.
Fault F.346, F.377
Check gap between ionisa-
tion electrode and burner
gauze assembly.
Check flue system. Remove
flue gas recirculation if re-
quired.
Reset device.
Operating instructions
For further details regarding faults, see "Troubleshoot-
ing".
Setting the max. heating output
A limit can be set on the maximum heating output for
heating mode
. The limit is set via the modulation
range.
Note
The flow rate must be checked before the max. heat-
ing output can be adjusted. Ensure adequate heat
transfer.
0
1.
Tap .
0
2.
Select
"Service"
.
0
3.
Enter password
"viservice"
.
0
4.
Use
to confirm.
0
5.
Select
"System configuration"
.
0
6.
Select
"Boiler"
.
0
7.
Parameter
596.0
"Maximum heating output"
0
8.
Check that a sufficient flow rate is ensured. If nec-
essary, increase the heat transfer.
Confirm the message with "
".
0
9.
10.
Set required value as a % of the rated heating out-
put and confirm with
. Factory setting 100 %.
11.
End service functions.
Activating screed drying
Screed drying
6 different temperature profiles can be set for screed
drying:
Preset temperature profiles can be adjusted via
parameter
897.0
"Screed drying"
in the General
group.
For further details, see "Function description".
Note
Screed drying applies to all connected heating circuits
simultaneously. DHW heating is not possible during
screed drying.
Commissioning, inspection, maintenance
Function sequence and possible faults
(cont.)
6151778
