7. Special Functions
Used to set basic items and expanded functions.
The settings in this menu should only be changed by a specialist.
Program selection
Here the hydraulic variation fitting to the respective use case is selected and set.
The program selection normally occurs only once during the first entry into service by a specialist. An incorrect program selec-
tion may lead to unpredictable errors.
Pump settings V(X)
Settings from the 0-10V or the PWM pump can be made in this menu.
When this menu is selected, you may receive a request to save the speed settings.
Signal type
Only available, if the function is used on one of the V-outputs. The type of device to be controlled is set here.
0-10V: Control by 0-10V signal.
PWM: Control by means of a PWM signal.
Pump
In this menu, the preset profiles for the pump can be selected or under “manual” all settings can be done personally. The settings can
still be changed after a profile has been selected.
Output Signal
In this menu, the type of pump is set: heating pumps have the greatest output with a small input signal, solar pumps in contrast have very
little output with a small input signal. Solar = normal, heating = inverted.
PWM / 0-10V off
This signal / this voltage is emitted if the pump is turned off (pumps with cable break detection require a minimal voltage / a minimum sig-
nal).
PWM / 0-10V on
This voltage / this signal requires the pump in order to turn on and to run at a minimum speed.
PWM / 0-10V max.
With this value, the maximum voltage level / maximum frequency can be specified for the highest speed of the energy saving pump,
which is used, for example, during the flushing or manual operation.
Show signal
Represents the set pump signal in a graphic and text overview.
Speed control
If the speed control is activated, it LHCC offers the possibility through a special internal electronic system to change the speed of pumps
depending on the process. The PWM and 0-10V outputs can work speed-controlled.
Variant
The following speed variants are available here:
Off: There is no speed regulation. The connected pump is only turned on or off with full speed.
Mode M1: The controller changes to the set max. speed after the purging time. If the temperature difference ∆T between the reference
sensors is below the set switch on temperature difference ∆T R1, the speed will be reduced. If the temperature difference between the
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