Viessmann Vitodens 300 Service Instructions Manual page 58

Coding
Code 2
(cont.)
Coding in Function mode
the as
delivered
condition
Address:
value
b5:0 * 1 With remote control:
Without room tempera-
ture-dependent heating
circuit pump logic func-
* 2
tion
Parameter With heating circuit pump logic function: Heating cir-
address b5:... cuit pump OFF, if
1: active RT
2: active RT
3: active RT
4: active RT
5: active RT
6: active RT
7: active RT
8: active RT
Coding in Function mode
the as
delivered
condition
Address:
value
Boiler circuit, mixer circuit
C5:20 * 1 Electronic limit of the
minimum flow tempera-
ture: 20 °C
C6:74 * 1 Electronic limit of the
maximum flow tempera-
ture: 74 °C
d3:14 * 1 Heating curve slope =
1.4
*1
Only for weather-compensated control units.
*2
Change the coding for the heating circuit without mixer A1 or for mixer circuit M2, if the
remote control unit affects that heating circuit.
58
Coding
change
Address:
value
b5:1
to
b5:8
> RT + 5 K; passive RT
Actual Set
> RT + 4 K; passive RT
Actual Set
> RT + 3 K; passive RT
Actual Set
> RT + 2 K; passive RT
Actual Set
> RT + 1 K; passive RT
Actual Set
> RT ; passive RT
Actual Set
> RT - 1 K; passive RT
Actual Set
> RT - 2 K; passive RT
Actual Set
Coding
change
Address:
value
C5:1
to
C5:127
C6:0
to
C6:127
d3:2
to
Possible change
Heating circuit pump
logic function - see the
following table
< 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
< RT - 3 K
Actual Set
Possible change
Minimum limit adjustable
from 1 to 127 °C
Maximum limit adjustable
from 1 to 127 °C
Heating curve slope
adjustable from 0.2 to 3.5