n
Example (with TW 23)
Setting on the setting knob
B
è
20
Setting on the TW 23’s selector knob
P2
è
50
Setting on the setting knob
C
è
-20
Both settings give target values of 50 °C in the day and of 30 °C at
night.
Setting the target value
Temperature selector TW 21A to 23A
When using a temperature selector the setting knob
B
on the con -
troller is always to be set on
20
. The setting of the selector knob
P2
on the TW is relevant for the target value.
There are temperature selectors for various temperature ranges:
TW 21A – settable temperature range -15... + 15° C
TW 22A – settable temperature range
0… 30 °C
TW 23A – settable temperature range 20… 70 °C
If no temperature selector is available, the desired target value is to
be set on the setting knob
B
of the control unit
Energy saving tip:
Set the operating mode selector
S
on
.
The controller hence works constantly in reduced
mode.
