Viessmann Vitoplus 300 Service Instructions Manual page 55

Wall mounted oil fired condensing boiler for the combustion of low sulphur fuel oil din 51603-el-1 with integral boiler control unit
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Code 2
(cont.)
Coding in the delivered condition
A9:7
With pump idle time:
Heating circuit pump
OFF in case the set
value is changed (by
changing the operating
mode or the set room
temperature)
b0:0
With remote control:
Heating mode/reduced
mode: weather-com-
pensated
b2:8
With remote control unit
and for the heating cir-
cuit, heating with room
temperature hook-up
must be encoded:
Room influence factor
*
8
1
b5:0
With remote control:
Without room tempera-
ture-dependent heating
circuit pump logic func-
*
tion
1
Parameter ad-
With heating circuit pump logic function: Heating cir-
dress b5:...
cuit pump OFF, if
1:
enabled RT
2:
enabled RT
*1
Change the code for the heating circuit without mixer A1 or for the heating circuit with
mixer M2 only, if the remote control unit affects that heating circuit.
Possible change
A9:0
A9:1
to
A9:15
b0:1
*
1
b0:2
b0:3
b2:0
b2:1
to
b2:64
b5:1
to
b5:8
> RT
+ 5 K; disabled RT
actual
set
> RT
+ 4 K; disabled RT
actual
set
Coding
Without pump idle time
With pump idle time, ad-
justable from 1 to 15
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 tem-
perature hook-up
Without room influence
Room influence factor
adjustable from 1 to 64
Heating circuit pump
logic function; see the fol-
lowing table
< RT
+ 4 K
actual
set
< RT
+ 3 K
actual
set
55

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