Bosch TA 211E Anleitung Seite 13

TA 211 E
7.1 Outside temperature for
20
boiler switching off point (a)
25
∞
15
With this adjustment knob, the outdoor tem-
perature (15 to 25 °C) can be set at which the
appliance is automatically switched off or on.
Example: In the position "20", the appliance is
switched off at outdoor temperatures over ap-
prox. +20.5 °C and automatically switched on
again at temperatures
+18.5 °C.
The set value is determined by the user. In the
∞ position set at the factory, this function is not
active and makes heating operations possible
at any outside temperature, e. g., the opera-
tion of the system in midsummer.
7.2 Operating Mode Switch (b)
With this switch, selection can be made be-
tween the following three operating modes:
7.2.1 Continuous Reduced
Operation
In combination with the setting function
night reduction (d), the following behaviour re-
sults:
-30 -20
-40 -10
0
For outside temperatures over +4 °C, the ap-
pliance is off. For outside temperatures under
+3 °C, the appliance is regulated to the mini-
mum temperature. The circulation pump runs.
Attention: Care should be taken during the
frost protection function that the
feed temperature selector on the
heating unit is set to at least "1" or
" y".
Select this position in summer and dur-
Tip
ing winter vacations when the room tempera-
ture can be significantly reduced (Caution:
House plants, pets).
In this case, the normal operation setting on
the time switch (accessory) is ignored. Switch
back again later to the automatic switching
mode .
Reduced operation in combination with a val-
ue of between "0" and "–40" for the night re-
duction (d) results in the following function:
13
under approx.
for
Continuous off with
frost protection
function
-30 -20
-40 -10
0
The flow temperature is continuously reduced
by the value set on the adjustment knob (d).
This operating mode provides reduced heat-
ing operation with the circulation pump run-
ning.
Select this position during winter vaca-
Tip
tions when the room temperature cannot be
significantly reduced.
In this case, the normal operation setting on
the time switch (accessory) is ignored. Switch
back again later to the automatic switching
mode .
During reduced operation, the appliance re-
mains in operation with reduced temperature
regardless of outdoor temperature and the
pump runs.
7.2.2 Timed Switching
Between normal and reduced operating ac-
cording to the time switch settings.
In combination with the setting for night reduc-
tion (d), the following function results:
-30 -20
-40 -10
0
Timed switching between normal and frost
protection operation according to the time
switch programming.
During frost protection operation (e. g., at
night), the burner and pump are switched off
for outside temperatures over approx. +3 °C.
Attention: Care should be taken during the
frost protection function that the
feed temperature selector on the
heating unit is set to at least "1" or
" y".
Select this economy position when the
Tip
thermal insulation in your building is good and
prevents rapid cooling.
Continuous
reduced operation
Timed
economy heating