Viessmann VITODENS 300 Service Instructions Manual page 57

Code 2
(cont.)
Parameter ad- With heating circuit pump logic function: Heating cir-
dress b5:... cuit pump OFF, if
3: enabled RT
4: enabled RT
5: enabled RT
6: enabled RT
7: enabled RT
8: enabled RT
Coding in the delivered condition
Boiler circuit, mixer circuit
* 1
C5:20 Electronic minimum
flow temperature limit in
standard mode 20 °C
* 1
C6:74 Electronic maximum
flow temperature limit
74 °C
*
d3:14 1 Heating curve slope =
1.4
* 1
d4:0 Heating curve level =
0
* 1
d5:0 The heating program
changes to "Constant
operation with reduced
room temperature"
* 1
E1:1 With remote control:
Set day temperature is
adjustable at the remote
control unit from 10 to
30 °C
*1
Only for weather-compensated control units.
> RT + 3 K; disabled RT
actual set
> RT + 2 K; disabled RT
actual set
> RT + 1 K; disabled RT
actual set
> RT ; disabled RT
actual set
> RT - 1 K; disabled RT
active set
> RT - 2 K; disabled RT
actual set
Possible change
C5:1
to
C5:127
C6:0
to
C6:127
d3:2
to
d3:35
d4: 13
to
d4:40
d5:1
E1:0
E1:2
Coding
< 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
Minimum temperature
limit in standard mode
adjustable from 1 to
127 °C
Maximum temperature
limit adjustable from 1 to
127 °C
Heating curve slope ad-
justable from 0.2 to 3.5
(see page 33)
Heating curve level ad-
justable from 13 to 40
(see page 33)
The external heating pro-
gram changeover
changes to "Constant
central heating with stan-
dard room temperature"
Set day temperature ad-
justable from 3 to 23 °C
Set day temperature ad-
justable from 17 to 37 °C
57