Operating instructions

85
Coding
Coding in the delivered condition Possible change
A0:0 Without remote control
(only for weather-com-
pensated control units)
A0:1 With Vitotrol 200A (auto-
matic recognition)
A0:2 With Vitotrol 300A or
Vitohome 300 (automatic
recognition)
A1:0 All settings that can be
made at the remote con-
trol can be executed (only
for constant temperature
control units)
A1:1 Only party mode can be set
at the remote control
A3:2 Outside temperature
below 1 °C: Heating cir-
cuit pump "ON"
Outside temperature
above 3 °C: Heating cir-
cuit pump "OFF"
A3:-9
to
A3:15
Heating circuit pump "ON/
OFF" (see the following
table)
!
Please note
When selecting a value below 1 °C, there is a risk of pipes outside the thermal
envelope of the building being damaged by frost.
The standby mode, in particular, should be taken into consideration, e.g. dur-
ing 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
Code 2
Heating circuit 1, heating circuit 2, heating…
(cont.)
5457 552 GB
Service