21Operating and Installation Manual for Solar Module VR 68 0020054784_00
Display
screen
Title
screen
Adjustable
operating values
(only display = A)
Remarks Unit Min.
value
Max.
value
Increment or
possible
values
Preset
value
C9 HC1
parameters
Set-back temperature A night set back temp
can be specified for the
periods between the time
windows.
If the expert technician
has set the frost
protection function, the
set-back temperature is
automatically 5 °C. There
will be no display as set-
back temperature
°C 5 30 1 15
Heating curve in accordance with the
diagram operating
instructions Chapter 4.7.3
0.2 4 0.05-0.1 1.2
Minimum temperature Minimum feed
temperature HC1
°C 15 90 1 15
C12 Parameters
Solar cyl. 1
Maximum temperature
Cylinder 1
°C 20 90 1
Activation difference
Cylinder 1
R2251
Deactivation difference
Cylinder 1
R1201
C13 Parameters
Solar cyl. 2
"Cylinder 2" must
be selected at
multifunction
relay in A4.
If a swimming pool
is used as
"Cylinder 2", the
default values
must be adapted.
Maximum temperature
Cylinder 2
°C 20 90 1 65
Activation difference
Cylinder 2
R2251 7
Deactivation difference
Cylinder 2
R1201 3
Master cylinder has priority over cylinder
being supplied
Cylinder 1, 2 1
C14 Parameters
Diff. control
The "differential
control" option
must be selected
in A4 at
multifunction
relay.
Activation difference
Diff. control 2
R2251 7
Deactivation difference
Diff. control 2
R1201 3
C15 Hot water
parameters
Storage tank charging
offset
Target feed temperature
during recharging
= target temperature of
cylinder
+ Recharging offset
R15401 25
C16 Hot water
parameters
Legionella protect day Day or block of days; The
cylinder is heated up to
70°C for an hour
OFF, MO, TU,
WE, TH, FR,
SA, SU, MO-SU
OFF
Start time of
Legionella protection
0:00 24:00 0:10 4:00
Table 7.2 Display screens in the level for the expert technician
(continuation)
Start-up 7
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