On hysteresis
If the controller has changed the season from heating to cooling and flow < reference flow + On hysteresis, the seasonal switch will be
switched on (output switched).
Cool storage
The storage can be cooled through this function.
Yes: The flow and buffer storage are cooled down to the reference flow temperature + hysteresis.
No: It is cooled down to the reference flow temperature + hysteresis, the temperature in the buffer storage is ignored.
Buffer sensor
If the buffer tank is to be cooled in the cooling mode, the corresponding sensor can be set here.
Solid fuel boiler
In solid-fuel boiler function, a pump is controlled with a assigned relay, which loads the heat energy from a solid-fuel boiler into a stor-
age tank.
The solid-fuel boiler function controls the charge pump of a solid-fuel boiler based on the temperature difference between the solid-fuel
boiler sensor and the storage tank sensor.
If a control output (V1 or V2, ...) is used with this function, a speed control with a PWM / 0-10V HE pump is possible.
Solid fuel boiler Tmax
Maximum temperature in storage tank. If this is exceeded, the relay is switched off.
Solid fuel boiler Tmin
Minimum temperature in the solid fuel boiler to start the pump.
If the temperature at the solid fuel boiler sensor exceeds the temperature set here, the relay switches on the pump, if the other starting
conditions are met.
Below the solids boiler Tmin temperature, the solids boiler function is deactivated.
ΔT Solid fuel boiler
Switch-on and switch-off difference between solid fuel boiler (SFB) and storage tank.
If the temperature difference between the sensors defined for this function exceeds the value set here (ΔT SF On), the function switches
on the assigned output (relay or signal output).
If the set temperature difference (ΔT SF Off) between the solids boiler and the storage tank is below, the function switches off the
assigned output (relay or signal output).
Boiler sensor of this function
Sensor used as a solids boiler sensor. Considered for SF Tmin and ΔTon/off.
Storage sensor
Sensor used as a storage tank sensor. Considered for FS Tmax and ΔTon/off.
Solar
This function is used to control a solar pump.
Tmin Collector
Enable/start temperature at sensor X:
If this value on the specified sensor is exceeded and the other conditions are fulfilled, the controller will turn on the affiliated pump or the
valve. If the temperature on the sensor falls 5 °C below this value, the pump or the valve will be turned off again.
ΔT Solar
Switch on/switch off temperature difference for sensor X:
If the temperature difference ΔT Solar between the reference sensors is exceeded and the other conditions are fulfilled, the controller
will turn on the pump/valve on the corresponding relay. If the temperature difference falls to ΔT Off, the pump/valve will be turned off
again.
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