20
Operation of the controller and LED indicators
Operation of the controller has been kept as simple as possible, so that it can also be operated by
inexperienced users.
The temperature can only be selected on the FRISTAR3 controller if no set value has been issued by
a freely programmable controller (e.g. UVR16x2) via the DL bus.
Manual-automatic changeover switch
Emergency operation mode
In the Emergency operation mode, the pump and the valve are set to manual mode. This is controlled
using the temperature dual on the front of the controller.
Activation
If both temperature sensors S1 and S2 (see chapter “Electrical connection”) are not connected when
the FRISTAR3 starts (= power is supplied), the controller boots into Emergency operation mode. The
LED will flash accordingly.
Deactivation
Emergency operation mode can be deactivated by connecting both temperature sensors S1 and S2.
A self-test will occur right after. If all required sensors, the pump and the valve function correctly, the
Emergency operation mode ends and normal operation begins.
Operation
When turning the temperature dial all the way to the left (= 40°C), the pump will not run and the valve
will be shut (= 0%).
When turning the temperature dial all the way to the right (= 70°C), the pump will run with full speed
and the valve will open all the way (= 100%).
The Manual-automatic changeover switch should be set to AUTO. The settings on and off cause
pump and valve activity of 100% and 0% respectively. This overrides the setting of the dial.
AUS
(off)
The pump is permanently off and the valve is closed.
AUTO
Pump and valve operate as specified by the controller.
EIN
(on)
The pump runs permanently at full speed and the valve is fully open, regardless of
the control temperature.
Status LED
Pump LED
Manual/automatic switch
Temperature
selection
Содержание FRISTAR3
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