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Hydrun Filter Station is a fully automatic filter station for hydronic , designed to ensure clean system fluid through continuous filtration of dirt and magnetite.
The filter station operates in a partial flow and continuously draws in system fluid via its powerful and robust circulation pump.
The unit is equipped with a display that shows how full the filter is. An alarm is triggered when the filter begins to fill up (user-defined threshold), allowing for proactive filter replacement.
When the filter is full, another alarm is triggered and the pump stops.
Alarm functions ensure continuous filtration, and stopping the pump when the filter is full saves energy and extends the unit’s service life.
Proactive alert for upcoming filter replacement. Alert and pump shutdown when the filter is full.
Easily choose between continuous or scheduled filtering (day of the week and start time).
Clear connection logic and preset values reduce on-site time.
Modbus TCP, RTU, and BACnet for alarms, status, and logging directly to DDC/BMS as standard.
Use the same outlet on the system as the exhaust fan and save two extra connections.
Save energy by continuously reducing the amount of dirt and magnetite in the system.

Model
HY-F-FC-20
Previous name: MA-X Smart Filter Station (Cartridge)
Previous item no.: HL3100
RSK no.: 503 72 90
Capacity 1: 20 l/min
Capacity 2: 1.2 m³/h
Max operating pressure: 8 bar
Pressure class: 10 bar
Gauss: 8000
Maximum temperature: 80°C
Voltage: 230V single-phase
Fuse: 10 A
Power: 0.75 kW
Grundfos pump: CM 3-2
Communication: Modbus TCP, RTU and BACnet
Media: Glykol <50%, Etanol <29%
Dimensions: D:420 x W:500 x H:750mm
Model
HY-F-FB-51
Previous name: MA-X Smart Filter Station (Bag)
Previous item no.: HL3120
RSK no.: 503 72 91
Capacity 1: 51 l/min
Capacity 2: 3.2 m³/h
Max operating pressure: 8 bar
Pressure class: 10 bar
Gauss: 7000
Maximum temperature: 80°C
Voltage: 230V single-phase
Fuse: 10 A
Power: 0.75 kW
Grundfos pump: CM 3-2
Communication: Modbus TCP, RTU and BACnet
Media: Glykol <50%, Etanol <29%
Dimensions: D:420 x W:500 x H:800mm
Model
HY-F-FB-100
Previous name: N/A
Previous item no.: N/A
Capacity 1: 100 l/min
Capacity 2: 6 m³/h
Max operating pressure: 8 bar
Pressure class: 10 bar
Gauss: 7000
Maximum temperature: 80°C
Voltage: 230V single-phase
Fuse: 10 A
Power: 0.75 kW
Grundfos pump: CM 5-2
Communication: Modbus TCP, RTU and BACnet
Media: Glykol <50%, Etanol <29%
Dimensions: D:420 x W:500 x H:800mm