The additional function error message activates the relay for certain events and only deactivates again when the information mes-
sage to each event was read.
Pressure monitor
In this menu, the system pressure monitoring can be activated through a direct sensor. As soon as the set pressure conditions are
undershot or exceeded, the set relay will switch on.
Pressure monitor
Relay turns on if the pressure goes below the minimum or exceeds the maximum.
RPS1 / RPS2
Type of pressure sensor
In this menu, you can adjust which pressure sensor is being used. Please note: If e.g. VFS1 is connected, RPS1 option is not
shown.
Pmin
Minimum pressure. If this pressure is not met, the controller emits an error notification and the relay switches.
Pmax
Maximum pressure in the system. If this pressure is exceeded, the controller emits an error notification and the relay switches.
Booster
This function can control an additional booster pump for filling a resistance system.
Booster
Activate function.
Charge time
When solar charging begins, the connected booster pump fills the system for the time set here.
Parallel operation R1/R2
The relais is switched on at the same time as the set relay R1 or R2.
Parallel operation
Here you can additionally set the switch mode.
On : The function switches parallel to the set signal output.
Inverted : The function switches contrary to the set signal output.
Delay
In this menu, it is set how long to wait after switching the signal output until the parallel operated relay switches as well.
Followup time
In this menu, it is set how long the parallel-operated relay continues to operate after the set signal output has been deactivated.
Always on
Relay is permanently switched on.
Heating Circuit
A heating circuit pump with fixed hysteresis (+/- 1 °) controlled to achieve the target value. A delay of 30 seconds of activation/
deactivation is fixed to prevent shocks. The RC21 room controller can be used as room sensor.
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