Dhw - Viessmann VITODENS 222-F Installation And Service Instructions Manual

Boiler
(cont.)
1432.2 "Operating mode of primary circuit pump"
Setting
1503.0 "Minimum heating output"
Setting
1606.4 "Integral threshold for burner switch-off"
Setting
1606.0 "Minimum burner pause time"
Setting

DHW

Note
Parameter values in bold are factory settings.
497.1 "DHW circulation pump for auxiliary function DHW heating"
Setting
OFF
ON
Explanations
0 Internal circulation pump is operated with constant dif-
ferential pressure.
1 to 20 Internal circulation pump is operated with rising differ-
ential pressure.
Adjustable from 1 to 20 mbar
Explanations
A limit can be set on the minimum heating output for
heating mode.
... Delivered condition specified by settings specific to
the appliance
5 to 100 Adjustable from 5 to 100 %
Explanations
Only effective if parameter 1606.0 has been set to 1.
20 Factory setting 20 K x min
5 to 255 Adjustable from 5 to 255 20 K x min
The higher the value, the later the burner switches off.
Explanations
The minimum burner pause time can be set subject to
boiler load.
0 Delivered condition, fixed setting for minimum burner
pause time
1 Integral method
Explanations
DHW circulation pump:
0 OFF during hygiene function
1 ON during hygiene function
Danger
Risk of injury due to increased DHW tempera-
ture.
Inform the system user of the risk from the high-
er outlet temperature at the taps.
System configuration (parameters)
59