Coding in the delivered condition
Possible change
Boiler circuit, mixer circuit
A4:0
With frost protection
(only for weather-com-
pensated control units)
A4:1
No frost protection, ad-
justment only possible if
coding address "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"
if the outside tempera-
ture (AT) is 1 K higher
than the set room tem-
perature (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", if
(see the following table)
Parameter address
A5:...
With heating circuit pump logic function: Heating
circuit pump OFF, if
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.)
53
Coding
5692
673
GB
Summary of Contents for VITODENS 300-W
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