Coding in the delivered condition
Possible change
Heating circuit A1/M2
A4:0
With frost protection
(only for weather-com-
pensated control units)
A4:1
No frost protection; this
setting is only possible if
code "A3: -9" has been
selected.
Note
Observe the note for
code "A3"
A5:5
With heating circuit
pump logic function
(economy circuit): Heat-
ing circuit pump "OFF"
when the outside tem-
perature (AT) is 1 K
higher than set room
temperature (RT
set
).
AT > RT
set
+ 1 K (only
for weather-compen-
sated control units)
A5:0
Without heating circuit
pump logic function
A5:1
to
A5:15
With heating circuit pump
logic function: Heating
circuit pump "OFF" (see
the following table)
Parameter address
A5:...
With heating circuit pump logic function: Heating
circuit pump "OFF"
1
AT > RT
set
+ 5 K
2
AT > RT
set
+ 4 K
3
AT > RT
set
+ 3 K
4
AT > RT
set
+ 2 K
5
AT > RT
set
+ 1 K
6
AT > RT
set
7
to
AT > RT
set
- 1 K
15
AT > RT
set
- 9 K
Code 2
(cont.)
54
Coding
5692
731
GB
Summary of Contents for VITODENS 333-F WS3A
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