Viessmann Vitodens 222-F Installation And Service Instructions For Contractors page 61

Heating circuit 1, heating circuit 2, heating...
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
"External operating program changeover"
Setting
The operating program changes to "Con-
stant central heating with reduced room
temperature" or "Standby mode" (subject to
the settings of the set reduced room tem-
perature)
The operating program changes to "Con-
stant operation with standard room temper-
ature"
"EA1 extension: Operating program changeover"
Setting
No operating program changeover
Operating program changeover via input
DE1
Operating program changeover via input
DE2
Operating program changeover via input
DE3
"Max. speed of speed-controlled heating circuit pump in standard mode"
Setting
... %
... %
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
D5:0
D5:1
D8:0
D8:1
D8:2
D8:3
E6: ...
E6:0 to
E6:100
(cont.)
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
Subject to parameters 3A, 3B and 3C
Explanations
Explanations
This value is determined by boiler-specific parameters
Maximum speed adjustable from 0 to 100 %
Parameter level 1
+ 4 K
+ 3 K
+ 2 K
+ 1 K
- 1 K
- 2 K
- 3 K
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