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Heating group
(cont.)
Coding in the delivered condition
Frost protection temperature
A3:2
Outside temperature below 1 °C:
Frost protection function "On"
Outside temperature above 3 °C:
Frost protection function "Off"
!
Please note
With settings below 1 °C there is a risk that pipes outside the thermal envelope of the building could freeze
up.
Pay particular attention to standby mode, e.g. during holidays.
Parameter address
Frost protection function / heating cir-
A3: ...
cuit pump "On"
-9
-10 °C
-8
-9 °C
-7
-8 °C
-6
-7 °C
-5
-6 °C
-4
-5 °C
-3
-4 °C
-2
-3 °C
-1
-2 °C
0
-1 °C
1
0 °C
2
1 °C
to
to
15
14 °C
Coding in the delivered condition
Frost protection activation
A4:0
Frost protection function is ena-
bled, i.e. the heating circuit pump
is switched on at a certain outside
temperature. Minimum flow tem-
perature is 10 °C. The heating cir-
cuit pump is switched off when the
outside temperature rises. Adjust
the start and stop temperatures via
code A3.
Room sensor offset
E2:50
No correction of actual room tem-
perature
Note
Only available if a remote control
unit is connected in this heating
circuit (Code A0:
Possible change
A3:-9
to
A3:15
Possible change
A4:1
E2:0
to
E2:49
E2:51
to
E2:99
0).
≠
Frost protection function "On"/"Off"
at temperatures detailed in the table
below
Frost protection function / heating circuit
pump "Off"
-8 °C
-7 °C
-6 °C
-5 °C
-4 °C
-3 °C
-2 °C
-1 °C
0 °C
1 °C
2 °C
3 °C
to
16 °C
The frost protection function is disa-
bled. Adjustment is only possible if
code A3: -9 has been set.
!
Please note
With settings below 1 °C there
is a risk that pipes outside the
thermal envelope of the build-
ing could freeze up.
Pay particular attention to
standby mode, e.g. during
holidays.
Correction of actual room tempera-
ture in steps of 0.1 K. Setting 0
-5.0 K and setting 49
Correction of actual room tempera-
ture in steps of 0.1 K. Setting 51
+0.1 K and setting 99
Code 2
≙
≙
-0.1 K
≙
≙
+4.9 K
45
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