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Installation Instructions VRC 630 0020095108_00
7 Operating the controller
7.3.4 Menu C7: Setting the parameters for the
entire system
In Menu
C7
is for setting the global parameters which
ensure optimum operation of the heating installation.
Total system
C7
Parameters
Max. pre-switch off
15 mins
Frost prot. delay
1 hour
Continuous heating
Off
Fast temp increase
0 K
> Set maximum duration
Settable
parameters
Description
Setting range
Factory
setting
Max. pre-switch
off
The
pre-switch off
prevents unnecessary heating of the installa-
tion immediately before a defined set-back point.
The controller calculates the actual period independently of the
outside temperature.
Set the maximum period desired by the owner here.
If the outside temperature is at -20 °C, no pre-switch off occurs.
If the outside temperature is +20 °C, the
maximum pre-switch
off
is in effect.
At temperatures in the range -20 °C ... +20 °C, the controller com-
putes a value corresponding to a linear interpolation between
-20 °C and +20 °C.
–
–
>
–
–
–
0 ... 120 min 15 mins
Frost prot. delay
The frost protection function ensures protection from frost in the
Off
and
Eco
modes (outside the programmed time slots) globally
in the heating installation for all connected heating circuits.
If the outside temperature falls below 3 °C, the set-back tempera-
ture is applied as the target room temperature. The heating cir-
cuit pump is switched on.
If you set a delay time, the frost protection function is inhibited
for this period
(setting range 0 - 23 h).
If the measured room temperature is lower than the preset set-
back temperature, the frost protection is also activated (regard-
less of the measured outside temperature).
–
–
–
–
0 ... 23 h
1 h
Table 7.13 Settable parameters in Menu C7
Содержание VRC 630
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