Viessmann VITOPEND 200 Installation And Service Instructions Manual page 64

Coding
Code 2
(cont.)
Parameter ad- With heating circuit pump logic function:
dress 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
Boiler circuit, mixer circuit
C5:20 Electronic minimum
limit of the flow tem-
perature 20 °C (only for
weather‐compensated
control units)
C6:74 Electronic maximum
limit of the flow tem-
perature 74 °C (only for
weather‐compensated
control units)
d3:14 Heating curve slope =
1.4 (only for weather‐
compensated control
units)
d4:0 Heating curve slope = 0
(only for weather‐com-
pensated control units)
d5:0 The external heating
program changeover
changes the heating
program to "Constant
operation with reduced
room temperature"
(only for weather‐com-
pensated control units)
64
> RT + 5 K
Set
> RT + 4 K
Set
> RT + 3 K
Set
> RT + 2 K
Set
> RT + 1 K
Set
> RT
Set
‐ 1 K
> RT
Set
‐ 2 K
> RT
Set
Possible change
C5:1
to
C5:127
C6:10
to
C6:127
d3:2
to
d3:35
d4:–13
to
d4:40
d5:1
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
‐ 1 K
RT < RT
Actual Set
‐ 2 K
RT < RT
Actual Set
‐ 3 K
RT < RT
Actual Set
Minimum limit adjustable
from 1 to 127 °C
Maximum limit adjustable
from 10 to 127 °C
Heating curve slope ad-
justable from 0.2 to 3.5
(see page 43)
Heating curve level ad-
justable from –13 to 40
(see page 43)
The external heating pro-
gram changeover
changes to "Constant
central heating with stan-
dard room temperature"