Viessmann Vitodens 222-F Installation And Service Instructions For Contractors page 72

Parameter level 2
Boiler
(cont.)
"Single and multi boiler system"
Setting
Single boiler system
Multi boiler system
"Minimum burner pause time"
Setting
Standard
Differential method
Integral method
"Maximum boiler water temperature limit"
Setting
... °C
"Integral threshold for burner switch-off"
Setting
20
...
"Enable start temperature for cyclical calibration in heating mode"
Setting
Do not enable
Enable
"Enable increase start hysteresis DHW heating for cyclical calibration requirement"
Setting
Do not enable
Enable
"Enable increase start hysteresis DHW heating for urgent calibration requirement"
Setting
Do not enable
Enable
"Interval in burner hours until the next service"
Setting
None
... 00 h
72
Explanations
Only if control unit has been changed to constant tem-
perature mode.
01:1
01:2 If the boiler is operated in a multi boiler system.
Explanations
04:0 Fixed setting for minimum burner pause time
04:1 Minimum burner pause time subject to the boiler load
04:2 Minimum burner pause time subject to the boiler load
and taking into account a threshold value (specified by
boiler coding card)
Explanations
06:... Maximum limit of the boiler water temperature, defaul-
ted by the boiler coding card
06:20 to Maximum limit of the boiler water temperature within
06:... the ranges specified by the boiler coding card
Setting range 20 to ... °C
Explanations
10:20 Only effective if parameter 04:2 has been set.
10:5 to Adjustable from 5 to 255
10:255 The higher the value, the later the burner switches off
Explanations
13:0
13:1 Never adjust
Explanations
14:0
14:1 Never adjust
Explanations
15:0
15:1 Never adjust
Explanations
21:0 No service interval set
21:1 to The number of hours run before the burner should be
21:100 serviced is adjustable from 100 to 10,000 h
≙
1 step 100 h