FüllCombi BA 6628 – Automatic filling and refilling station for hot water central heating systems
Short description
The FüllCombi BA 6628 is a compact filling and refilling device specially developed for hot water central heating systems in accordance with DIN EN 12828. It allows a permanent connection to the drinking water line in accordance with DIN EN 1717 and replaces the previous hose connection.
Function and area of application
When filling, the integrated unit monitors the supply pressure; if this drops below the pressure of the heating system during the filling process, the built-in system separator BA (approved up to fluid category 4) prevents heating water from flowing back into the drinking water line. The FüllCombi is therefore ideal for residential buildings, commercial properties and smaller heat supply systems where standard-compliant and safe filling processes are required.
Advantages
The combination of shut-off valve, pressure reducer, pressure gauge, system separator BA and wastewater connection offers a fully standard-compliant solution in one device. A permanent connection to the drinking water installation is possible even if the heating water contains inhibitors (corrosion and frost protection agents). After completing the filling process, it is recommended to close the shut-off valve for safety reasons.
Technical data
Operating pressure: max. 10 bar
Operating temperature: max. 30 °C (inlet), max. 65 °C (outlet)
Installation position: horizontal, funnel connection pointing downward
Outlet pressure: 0.5 - 4 bar (factory setting: 1.5 bar)
Medium: drinking water
Filling capacity: 1.35 m³/h at Δp 1.5 bar
Connection size: DN 20
Installation and application
The FüllCombi must be mounted horizontally with the funnel connection pointing downward. It is firmly connected to the drinking water line and replaces temporary hose solutions. The outlet pressure is set at the factory to 1.5 bar, but can be adjusted within the permissible range.
Safety and maintenance
The integrated system separator BA provides reliable protection for the drinking water installation even against backflow risks up to fluid category 4. After each filling process, the shut-off valve should be closed again. Regular visual inspections and functional checks (pressure gauge, tightness, wastewater connection) extend the service life and ensure compliance with standards.
Scope of delivery & notes
The FüllCombi BA 6628 contains all the components mentioned: shut-off valve, pressure reducer, pressure gauge, system separator BA, and wastewater connection. Before installation, local regulations and the requirements of DIN EN 12828 or DIN EN 1717 must be observed; if in doubt, coordination with a specialist is recommended.