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Function sequence and possible faults
Yes
Automatic calibration of
the combustion controller
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.
01. Tap
.
02. Select "Service".
03. Enter password "viservice".
04. Use
to confirm.
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".
Fault F.62, F.373
No
Fault F.346, F.377
05. Select "System configuration".
06. Select "Boiler".
07. Parameter 596.0 "Maximum heating output"
08. Check that a sufficient flow rate is ensured. If nec-
09.
10. Set required value as a % of the rated heating out-
11. End service functions.
Note
Screed drying applies to all connected heating circuits
simultaneously. DHW heating is not possible during
screed drying.
Commissioning, inspection, maintenance
(cont.)
Ensure adequate heat trans-
fer. Reset device.
Check gap between ionisa-
tion electrode and burner
gauze assembly.
Check flue system. Remove
flue gas recirculation if re-
quired.
Reset device.
essary, increase the heat transfer.
Confirm the message with "
put and confirm with
. Factory setting 100 %.
Operating instructions
".
41
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