Instructing The System User - Viessmann VITODENS 200-W Installation And Service Instructions For Contractors

Calling up and resetting the maintenance display
5. "System configuration"
6. "Boiler"

Instructing the system user

The system installer should hand the operating instruc-
tions to the system user and instruct the user in oper-
ating the system.
DHW hygiene
For optimum DHW hygiene, avoid DHW temperatures
that are < 50 °C. For larger systems and systems with
low water exchange, the temperature should not drop
below < 60 °C.
Hygiene function
The DHW can be heated to a specified (higher) set
DHW temperature for a period of one hour.
Commissioning, inspection, maintenance
(cont.)
7. Select parameter 1411.0 "Clear maintenance
messages" and "ON".
Note
The selected service parameters for hours run and
time intervals restart at 0.
This includes all components installed as accessories,
e.g. remote control units. In addition, the system instal-
ler must make the user aware of the required mainte-
nance work.
To activate the function, see the operating instructions.
Inform the system user what DHW temperatures
should be set and the risks associated with having a
raised outlet temperature at the draw-off points.
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