Viessmann VITODENS 200-W Service Instructions Manual page 50

Code 1
Heating circuit 1, heating circuit 2, heating...
Coding in the delivered condition
Weather-compensated/room temperature hook-up
b0:0 With remote control:
Heating mode/reduced
mode: Weather-compen-
sated (only for weather-
compensated control
units; change the code
only for the heating circuit
with mixer)
Summer eco function room temperature
b5:0 With remote control: No
room temperature-
dependent heating circuit
pump logic function (only
for weather-compensa-
ted control units; change
the code only for the heat-
ing circuit with mixer)
Parameter With heating circuit pump logic function:
address b5:... Heating circuit pump "OFF"
1 RT
actual
2 RT
actual
3 RT
actual
4 RT
actual
5 RT
actual
6 RT
actual
7 RT
actual
8 RT
actual
Coding in the delivered condition
Flow temperature minimum limit
C5:20 Electronic minimum flow
temperature limit 20 °C
(only for weather-com-
pensated control units)
50
Possible change
b0:1
b0:2
b0:3
b5:1
to
b5:8
> RT + 5 K
set
> RT + 4 K
set
> RT + 3 K
set
> RT + 2 K
set
> RT + 1 K
set
> RT
set
> RT - 1 K
set
> RT - 2 K
set
Possible change
C5:1
to
C5:127
(cont.)
Heating mode: Weather-
compensated
Reduced mode: With room
temperature hook-up
Heating mode: With room
temperature hook-up
Reduced mode: Weather-
compensated
Heating mode/reduced
mode: With room tempera-
ture hook-up
Heating circuit pump logic
function, see the following
table:
Heating circuit pump "ON"
RT < RT + 4 K
actual set
RT < RT + 3 K
actual set
RT < RT + 2 K
actual set
RT < RT + 1 K
actual set
RT < RT
actual set
RT < RT - 1 K
actual set
RT < RT - 2 K
actual set
RT < RT - 3 K
actual set
Minimum limit adjustable
from 1 to 127 °C (limited by
boiler-specific parameters)