Viessmann Vitoladens 300-W Installation And Service Instructions For Contractors page 45

Coding level 1
(cont.)
Coding in the delivered condition
Weather-compensated/room temperature hook-up
b0:0 With remote control: heating mode/
reduced mode: weather-compen-
sated (change the code only 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 (change code
only for 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. supply temperature heating circuit
C5:20 Electronic minimum flow tempera-
ture limit 20 °C
Heating circuit max. supply temperature
C6:74 Electronic maximum flow tempera-
ture limit set to 74 °C
Operating program - changeover
d5:0 External operating program
changeover switches operating
program to "Constant operation at
reduced room temperature" or
"Standby mode"
Ext. heating program changeover to heating circuit
d8:0 No operating program changeover
via EA1 extension
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
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)
d5:1 The external operating program
changeover switches to "Constant
operation with standard room tem-
perature" (subject to coding ad-
dresses 3A, 3b and 3C)
d8:1 Operating program changeover via
input DE1 at EA1 extension
d8:2 Operating program changeover via
input DE2 at EA1 extension
d8:3 Operating program changeover via
input DE3 at EA1 extension
Codes
+ 4 K
+ 3 K
+ 2 K
+ 1 K
- 1 K
- 2 K
- 3 K
45