14
TA 211 E
English
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”.
Select this economy position when the
thermal insulation in your building is good and
prevents rapid cooling.
Timed se back
Operation
Automatic switching between normal and re-
duced operation according to the time switch
program.
Select this position when the thermal in-
sulation in your building is not so good and re-
duced heating operation is necessary (e. g., at
night) to prevent considerable cooling. During
reduced operation, the appliance remains in
operation with reduced temperature for any
outdoor temperature and the pump runs.
7.2.3 Continuous Normal
Operation
The flow temperature is not reduced.
Select this setting when you will be stay-
ing up late as an exception (e. g., party). In
this case, the setting on the time switch (ac-
cessory) for reduced operation is ignored. Do
not forget to switch back again later to auto-
matic switching operation
.
7.3
Setting the Heating Curve
The heating curve determines the flow tem-
perature to which the appliance is limited,
based on the measured outside temperature.
With a correctly set heating curve, a constant
room temperature is maintained for any out-
door temperature.
The heating curve (Fig.
) of the TA 211 E re-
sults from a base point (c) and the maximum
feed temperature (e).
7.3.1 Base Point Adjustment (c)
The base point of the heating curve sets the
flow temperature (radiator temperature) in °C
when the outside temperature is +20 °C. It
can be set to values between 10 and 60 (°C).
The heating curve shown in Fig. is for a
base point of 25 °C. This setting of the base
point should be selected as a first starting
point.
In case your heating equipment per-
mits, select a lower setting value (e. g. 20). In
case the room temperature is too low with ful-
ly opened thermostat valves, select a higher
value. (e. g. 30).
7.3.2 Adjustment of the Maxi-
mum Feed Temperature (e)
On the flow temperature selector in the facia
(e), the maximum heating flow temperature
can be set between 35
and
88
°C or
45 and 87 °C.
The maximum flow temperature selected here
is only reached with an outside temperature of
–15 °C (Fig.
, Point e).
In the following table, the temperatures are
given that correspond to the numbers 1 to 7
on the scale of the feed temperature selector:
Note:
The feed temperature selector (e) is
also the switch for summer operation
(
, left end position).
Therefore, note the setting for the
average feed temperature (Fig. ,
Point e) for winter operation.
☞
Tip
-40
-10
0
-30
-20
☞
Tip
☞
Tip
Setting
1
2
3
4
5
E
7
Average
approx. feed
tempera-
ture in °C
Bosch
Heatronic
for Z.E…
45 51 57 63 69 75 87
Bosch
Heatronic
for Z.BR…
Z.R…
35 43 51 59 67 75 88
10
40
50
60
20
30
☞
Tip
1
2
3
4
5
E
7
Summary of Contents for TA 211 E
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