GB ENGLISH
1.2.6 Min.temperat… To increase efficiency on charging, the minimum
collector temperature is entered via >T min.Coll<.
The hysteresis value >Hyst.Coll< represents the
difference between the switch-ON and switch-
OFF temperature. Press >ESC. Select >Priority
charge<..
1.2.8 Priority charg… In case of dual-tank or tank-pool systems, the
tank/pool to be charged first or parallel charging
is defined. >t pause< is used to set the pause time
between two switch-ON tests. >t charge< serves
to define the charging time for the secondary tank
or pool. Once >dt Coll< is reached, the pause time
is restarted. Select >Basic functions<.
1.2 Settings To reset set parameters to factory settings, select
>Factory settings<. Press >OK<. Activate factory
settings? Select >Yes< or >No<. Press >OK< and
then >ESC. Select >Basic functions<. Press >OK<.
Select >Thermostat<. Press >OK<.
1.3.1 Thermostat If outputs on the controller are not assigned, these
channels can be used as thermostats. The appropri-
ate channel is selected. Press >OK<. If a thermostat
has been installed, press >Thermostat RO2<.
1.3.1 Thermostat RO2 Activate by pressing >OK<. The output having
been defined by selection, the appropiate sensor,
the switch-ON and switch-OFF temperatures still
have to be set. For the heating function, >T ON<
must be below >T OFF<. For the cooling function
>T ON< must be higher than >T OFF<. Continue
to scroll. Up to four time slots can be assigned to
each thermostat function. First of all define the
switch-ON times. Then define the switch-OFF
times. As start signal, the timer, timer-thermo-
stat or temperature-thermostat can be set. Se-
lect and press >OK<. Press >ESC<.
1.3.1 Thermostat REL1 If >Thermostat REL < has been selected, tem-
peratures and times are set as described above.
Press >ESC<. Continue with >Output param-
eter<. Press >OK<.
1.3.7 Output para… Here the general settings for the assigned out-
puts are defined. Select >Solar pump 1<. Press
>OK<. Select >Algorithm<. Press >OK<. Se-
lect control algorithm >dT< or >Fixed T<. Press
>OK<. Settings are made in >1.3.5 dt control<
or >1.3.6 Fixed temp.c…<. In case of plants with
long piping or slow response, overtravel times
can be determined. Select overtravel time. Press
>OK<.Press >ESC<. With >n min.< and >n max.<
the pump speed is set. Press >ESC<. If >Disable
recharge< and/or >Thermostat RO2< are con-
nected, the overtravel times are set here. >t
tear-off< and >n tear-off< define how long and
at which speed the pumps are to run on starting.
>Speed delta< defines the pump speed changes.
Press >ESC<. Select >Tube collector<. Press
>OK<.
1.3.2 Tube collector To receive correct measured values from
the tube collector system, the pump must
be switched ON briefly. By activation of the
function, the solar pump can be started time-
and /or temperature-controlled. The time se-
quence, pump ON- time and the pump speed
as a percentage value can be entered. The two
time programs are performed one after the
other. Press >ESC<. Select > Holiday func-
tion<. Press >OK<.
1.3.3. Holiday funct... To avoid overheating of the plant, the controller will
suppress yield optimization while the holiday func-
tion is activated. The time frame of the holiday func-
tion is mostly defined in operation mode. Continue
to scroll.
If >Tank cooling< is activated, an appropriate time
frame must be defined – this makes sense during
the cooler hours of the night – by allowing the tank
to dissipate as much energy as possible via the col-
lectors. Under >Re-cooling< determine whether
cooling is to be affected down to >T min tank< or >T
max tank<. Under >n pump< set the pump speed in
percent. Enter the hysteresis value by >Hyst.<. Con-
tinue to scroll.
>Soft charge<. This function should be activated if
an extended spell of hot, sunny weather is expected.
Thus the heat input into the tank is reduced. >dT< is
used to define the switch-ON temperature for the
soft charge function as a difference from the preset
maximum temperature of the tank. Via >T min tank
1< specify the minimum tank temperature. Press
>ESC<. Select >Collector cooling. Press >OK.
1.3.4 Cooling funct. Here collector cooling is activated. Once the col-
lector temperature >T max Coll.1< is reached, the
pump continues to run until the tank limit tem-
perature >T max.tank< is reached. Press >ESC<.
Select >Commissioning<. Press >OK
0 Welcome Here new commissioning can be started –e.g. if
a new hydraulic system is to be selected. Press
>No< to continue. Select >Basic functions<. Scroll
to >Delta T control< or >Fixed T control< selected
in >1.3.7 Output para…<. Press >OK<.
1.3.5 dt control If control algorithms have been defined as >dT<
under >1.3.7 Output parameter< , the appropiate
outputs can be configured here. >dt1< defines the
temperature difference when the pump speed
is to be changed. Via >dT ON<, the switch-ON
temperature, via >dT OFF<, the switch-OFF
temperature and via >dT targ.< the target dif-
ferential temperature is set (differential tem-
perature between collector and tank bottom).
As soon as the difference is higher than or equal
to the value set for the switch-ON temperature
difference, the solar pump is switched on and
the tank is charged until the switch-OFF tem-
perature difference or the maximum tank tem-
perature is reached. >Contl 1 step-wise< tries to
maintain >dT targ.< temperature through chang-
ing the pump speed. With >Contl 1 - OFF< the
pump starts at >dT ON< and stops at >dT OFF<.
With >dT-targ< the control keeps the >dT targ.<
temperature while the pump speed is adjusted in
steps. Press >ESC<. Continue with >Post Heating
Requ.<. Press >OK<.
1.3.6 Fixed temp.c… If control algorithms have been defined as >Fixed
T< under >1.3.7 Output parameter<, the appropi-
ate outputs can be configured here. The collector
is controlled to the preset >T fixed< temperature
via a variable pump speed. With >Variant 1 step-
wise< the pump speed is controlled in steps of
2K (=dT1). The value can be changed under >dt
control<. With >Variant 1 OFF< the pump starts
at the preset collector temperature and stops at
10K. With >Variant 1dT-targ< the control keeps
the >dT targ.< temperature while the pump speed
is adjusted in steps. Press >ESC<. Continue with
>Post Heating Requ.<. Press >OK<.
1.3.10 Post Heatin… The additional heat source can be activated.
Set the time blocks, temperatures, starting/end
times and time periods. Press >ESC< three times.
Select >Efficiency functions<. Press >OK<.
1.4 Efficiency funct… Select >Low-flow<.
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