Setting The Max. Heating Output - Viessmann VITODENS 200-W Installation And Service Instructions For Contractors

Function sequence and possible faults
Yes
Burner in operation
Yes
Automatic calibration of
the combustion controller
For further details regarding faults, see page "Trouble-
shooting".

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.
No
Shuts down below the set
boiler water temperature and
restarts immediately.
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.
Commissioning, inspection, maintenance
(cont.)
Check the flue system for
tightness (flue gas recircula-
tion). Check gas flow pres-
sure.
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
".
49