Viessmann VITOTRONIC 200 Installation And Service Instructions Manual page 39

"Heating circuit 1", "Heating circuit 2", "Heating circuit 3" group
Parameter address With heating circuit pump logic function:
b5:...
Heating circuit pump "OFF"
1 RT
2 RT
3 RT
4 RT
5 RT
6 RT
7 RT
8 RT
Coding in the delivered condition
Min. flow temperature heating circuit
C5:20 Electronic minimum flow tempera-
ture limit 20 °C (only when operat-
ing with standard room tempera-
ture)
Max. flow temperature, heating circuit
C6:74 Electronic maximum flow tempera-
ture limit set to 74 °C
Heating program - changeover
d5:0 With external heating program
changeover (observe setting for
coding addresses "3A", "3b" and
"3C" in the "General" group).
Heating program switches to "Con-
stant central heating with reduced
room temperature" or "Standby
mode" (subject to the setting of the
set reduced room temperature).
Ext. heating program changeover to heating circuit
d8:0 With EA1 extension:
No heating program changeover
Screed drying
F1:0 Screed drying disabled
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
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
Possible change
C5:1 Minimum limit adjustable from 1 to
to 127 °C (limited by boiler-specific pa-
C5:127 rameters).
C6:10 Maximum limit adjustable from 10 to
to 127 °C (limited by boiler-specific pa-
C6:127 rameters).
d5:1 Heating program switches to "Con-
stant operation with standard room
temperature".
d8:1 Heating program changeover via in-
put DE1
d8:2 Heating program changeover via in-
put DE2
d8:3 Heating program changeover via in-
put DE3
F1:1 Screed drying adjustable, with
to choice of 6 temperature/time profiles
F1:6 (see page 78)
F1:15 Constant flow temperature 20 °C
(see page 78)
Coding level 1
(cont.)
+ 4 K
+ 3 K
+ 2 K
+ 1 K
1 K
–
2 K
–
3 K
–
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