Viessmann Vitodens 200-W Installation And Service Instructions For Contractors page 49

"Heating circuit ..."/Group 5
Coding in the delivered condition
Pump idle time, transition reduced mode
A9:7 With pump idle time: Heating cir-
cuit pump "OFF" if the set value is
altered through a change in oper-
ating mode or through a change in
the set room temperature (only for
weather-compensated control
units)
Weather-compensated/room temperature hook-up
b0:0 With remote control: Heating
mode/reduced mode: weather-
compensated (only for weather-
compensated control units; only
change the code for the heating
circuit with mixer)
Economy function room temperature
b5:0 With remote control: No room tem-
perature-dependent heating circuit
pump logic function (only for
weather-compensated control
units; only change the code for the
heating circuit with mixer)
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 for weather-
compensated control units)
Max. flow temperature heating circuit
C6:74 Electronic maximum flow tempera-
ture limit 74 °C (only for weather-
compensated control units)
(cont.)
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
Possible change
A9:0 Without pump idle time
A9:1 With pump idle time, adjustable from
to 1 to 15. The higher the value, the
A9:15 longer the pump idle time.
b0:1 Heating mode: weather-compensa-
ted
Reduced mode: with room tempera-
ture hook-up
b0:2 Heating mode: with room tempera-
ture hook-up
Reduced mode: weather-compensa-
ted.
b0:3 Heating mode/reduced mode: with
room temperature hook-up
b5:1 For heating circuit pump logic func-
to tion, see the following table:
b5:8
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)
Code 1
+ 4 K
+ 3 K
+ 2 K
+ 1 K
1 K
–
2 K
–
3 K
–
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