Viessmann FB2B Installation And Service Instructions Manual page 94

Code 2
Heating circuit 1, heating circuit 2, heating...
Coding in the delivered condition
b0:0 With remote control:
Heating mode/reduced
mode: weather-compen-
sated (change code only
for the heating circuit with
mixer)
b2:8 With remote control and
for the heating circuit,
operation with room tem-
perature hook-up must be
programmed: Room influ-
ence factor 8 (change
code only for heating cir-
cuit with mixer)
b5:0 With remote control: no
room temperature-
dependent heating circuit
pump logic function
(change code only for
heating 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
94
Possible change
b0:1
b0:2
b0:3
b2:0
b2:1
to
b2:64
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
(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
Without room influence
Room influence factor
adjustable from 1 to 64
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