Viessmann VITOTRONIC 200 Installation And Service Instructions Manual page 53

"Heating circuit 1", "Heating circuit 2", "Heating circuit 3" group
Parameter address With heating circuit pump logic function:
b5:...
Heating circuit pump "OFF"
3 RT
4 RT
5 RT
6 RT
7 RT
8 RT
Coding in the delivered condition
C4:1 Do not adjust
C5:20 Electronic minimum flow tempera-
ture limit 20 °C (only when operat-
ing with standard room tempera-
ture)
C6:74 Electronic maximum flow tempera-
ture limit set to 74 °C
d3:14 Heating curve slope: 1.4.
d4:0 Heating curve level: 0
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).
d6:0 Heating circuit pump at signal "Ex-
ternal blocking":
Control mode
(Observe settings of coding ad-
dresses "3A", "3b" and "3C" in the
"General" group).
d7:0 Heating circuit pump at signal "Ex-
ternal demand":
Control mode
(Observe settings of coding ad-
dresses "3A", "3b" and "3C" in the
"General" group).
d8:0 With EA1 extension:
No heating program changeover
E1:1 With remote control:
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
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).
d3:2 Heating curve slope adjustable from
to 0.2 to 3.5
d3:35
d4:–13 Heating curve level adjustable from
to 13 to 40
–
d4:40
d5:1 Heating program switches to "Con-
stant operation with standard room
temperature".
d6:1 "Off"
d6:2 "On"
d7:1 "Off"
d7:2 "On"
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
E1:0 Set day temperature adjustable from
3 to 23 °C
Coding level 2
(cont.)
+ 2 K
+ 1 K
1 K
–
2 K
–
3 K
–
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