Viessmann Vitodens 222-F Installation And Service Instructions For Contractors page 79

Heating circuit 1, heating circuit 2, heating...
"Room influence factor"
Setting
The higher the value the greater the room
influence
Without
The higher the value the greater the room
influence
"Economy function room temperature"
Setting
Without
... see service instructions
Parameter With economy function:
b5:...
Heating circuit pump "OFF"
1 RT
2 RT
3 RT
4 RT
5 RT
6 RT
7 RT
8 RT
"Minimum flow temperature limit, heating circuit"
Setting
20 °C
... °C
"Maximum flow temperature limit, heating circuit"
Setting
74 °C
... °C
"Slope"
Setting
1.4
...
B2:8
B2:0
B2:1 to
B2:64
B5:0
B5:1 to
B5:8
RT + 5 K
>
actual set
RT + 4 K
>
actual set
RT + 3 K
>
actual set
RT + 2 K
>
actual set
RT + 1 K
>
actual set
RT
>
actual set
RT - 1 K
>
actual set
RT - 2 K
>
actual set
C5:20
C5:1 to
C5:127
C6:74
C6:10 to
C6:127
D3:14
D3:2 to
D3:35
(cont.)
Explanations
Room influence factor 8
With remote control, and for the heating circuit, opera-
tion with room temperature hook-up must be set
Change value only for the heating circuit with mixer
Room influence factor adjustable from 1 to 64.
Explanations
With remote control: no room temperature-dependent
economy function.
Change value only for the heating circuit with mixer.
For economy function, see the following table:
Heating circuit pump "ON"
RT < RT
actual set
RT < RT
actual set
RT < RT
actual set
RT < RT
actual set
RT < RT
actual set
RT < RT
actual set
RT < RT
actual set
RT < RT
actual set
Explanations
Electronic minimum flow temperature limit set to 20 °C
Minimum limit adjustable from 1 to 127 °C (limited by
boiler-specific parameters)
Explanations
Electronic maximum flow temperature limit 74 °C
Maximum limit adjustable from 10 to 127 °C (limited
by boiler-specific parameters)
Explanations
Heating curve slope = 1.4
Heating curve slope adjustable from 0.2 to 3.5
Parameter level 2
+ 4 K
+ 3 K
+ 2 K
+ 1 K
- 1 K
- 2 K
- 3 K
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