63
Coding
Coding in the delivered condition
Possible change
A0:0
Without remote control
A0:1
With the Vitotrol 200A/200 RF (auto-
matic recognition)
A0:2
With the Vitotrol 300A/300 RF or
Vitocomfort 200 (automatic recogni-
tion)
A1:0
All possible settings at the remote
control can be accessed
A1:1
Only party mode can be set at the
remote control (only for Vitotrol 200)
A3:2
Outside temperature below 1 °C:
Heating circuit pump "ON"
Outside temperature above 3 °C:
Heating circuit pump "OFF"
A3:–9
to
A3:15
Heating circuit pump "ON/OFF" (see
the following table)
!
Please note
If a value below 1 °C is selected, there is a risk that pipes outside the thermal envelope of the house could
freeze up.
The standby mode in particular should be taken into consideration, e.g. during holidays.
Parameter
Heating circuit pump
Address A3:...
"ON"
"OFF"
–
9
–
10 °C
–
8 °C
–
8
–
9 °C
–
7 °C
–
7
–
8 °C
–
-6 °C
–
6
–
7 °C
–
5 °C
–
5
–
6 °C
–
4 °C
–
4
–
5 °C
–
3 °C
–
3
–
4 °C
–
2 °C
–
2
–
3 °C
–
1 °C
–
1
–
2 °C
0 °C
0
–
1 °C
1 °C
1
0 °C
2 °C
2
to
1 °C
to
3 °C
to
15
14 °C
16 °C
Coding in the delivered condition
Possible change
A4:0
With frost protection (only for
weather-compensated control
units)
A4:1
No frost protection; this setting is on-
ly possible if code "A3:
–
9" has been
selected.
Note
Observe "Please note" for code "A3"
A5:5
With heating circuit pump logic
function (economy control): heat-
ing circuit pump "OFF" when the
outside temperature (AT) is 1 K
higher than the set room tempera-
ture (RT
set
)
AT
>
RT
set
+ 1 K (only for weather-
compensated control units)
A5:0
Without heating circuit pump logic
function
A5:1
to
A5:15
With heating circuit pump logic func-
tion: Heating circuit pump "OFF";
see following table
Code 2
"Heating circuit ..."/Group 5
(cont.)
5772 980 GB
Service
