Viessmann Vitodens 333 Service Instructions Manual page 56
Compact gas fired condensing boiler. 4.2 to 19 kw natural gas and lpg version
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Also See for Vitodens 333:
- Service instructions manual (132 pages) ,
- Instruction manual (16 pages) ,
- Technical manual (180 pages)
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Coding
Code 2
(cont.)
Coding in the delivered condition
A9:7
With pump idle time:
Heating circuit pump
"OFF" if the set value
alters through a change
in operating mode or
through a change in the
set room temperature
(only for weather com-
pensated control units)
b0:0
With remote control:
Heating mode/reduced
mode: weather com-
pensated (only for
weather compensated
control units; change
the coding only for the
heating circuit with
mixer M2)
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
(only for weather com-
pensated control units;
change the coding only
for the heating circuit
with mixer M2)
b5:0
With remote control: No
room temperature de-
pendent heating circuit
pump logic function
(only for weather com-
pensated control units;
change the coding only
for the heating circuit
with mixer M2)
56
Possible change
A9:0
Without pump idle time
A9:1
With pump idle time, ad-
to
justable from 1 to 15
A9:15
b0:1
Heating mode: weather
compensated
Reduced mode: with
room temperature hook
up
b0:2
Heating mode: with room
temperature hook up
Reduced mode: weather
compensated
b0:3
Heating mode/reduced
mode: with room tem-
perature hook up
b2:0
Without room influence
b2:1
Room influence factor
to
adjustable from 1 to 64
b2:64
b5:1
Heating circuit pump
to
logic function, see the fol-
b5:8
lowing table:
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