59
Installation Instructions VRC 630 0020095108_00
Operating the controller 7
Settable
parameters
Description
Setting range
Factory
setting
Set-back tempera-
ture
Temperature to which the heating is to be reduced at times of
low heat demand (e.g. overnight).
–
5 ...30° C
15 °C
Heating curve
The basic setting of the heating curve is already made during
the installation of the system.
If this setting is not sufficient to control the temperature in
the living space to the owner's wishes, the heating curve can
be adjusted.
–
–
0.1 ... 4
1.2
Max limit outs.temp.
Outside temperature above which the requirement-dependent
heating switch-off (automatic summer switch-off) is effective.
Can be set separately for each heating circuit.
If the target room temperature is changed in the basic display,
the switch-off temperature must be changed at the same time
where appropriate (at least 1 °C higher than the target room
temperature).
–
–
–
5 ...50° C
21°C
Minimum temp.
Minimum flow temperature
–
15 ...90° C
15 °C
Maximum temp.
Maximum flow temperature
–
15 ...90° C
90 °C for
direct cir-
cuit
otherwise
75 °C
Max. pre-heat
Enables activation of the heating circuit before the first time
slot so that the target room temperature will already have
been reached at the start of the time slot
Only possible for the first heating slot of the day
The start of the heating is determined as a function of the out-
side temperature (OT):
OT
≤
–20 °C :
preset duration of the pre-heat time
OT
≥
+20 °C :
no pre-heat time
The duration of the pre-heat time is interpolated linearly
between these two values.
Once preheating has been started, it is only ended at the start
of the first time slot (not ended if the outside temperature
rises in the meantime).
–
–
–
–
–
–
–
0 ... 300 min.
0
Table 7.9 Settable parameters in Menu C2
Summary of Contents for VRC 630
Page 1: ...GB VRC 630 3 ...
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Page 55: ...For the heating engineer Installation Manual VRC 630 ...
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