Product Overview & Area of Application
The AQMOS R2D2-72 water softening system is a compact cabinet-style water softener for households typically used by 2 to 7 people. It reduces water hardness in the drinking water area and thereby helps to reduce limescale deposits on fittings, pipes, household appliances, and water heaters.
As the largest version of the R2D2 series, the system is suitable for single-family homes, larger households, small residential units, or areas with increased water demand. The system is offered as a single softener without connection accessories and is designed for central integration into the household water installation.
Technology & Equipment
The AQMOS R2D2-72 operates with ion exchange resin. This reduces the calcium and magnesium ions responsible for limescale, so that the water is fed into the house installation with a lower hardness after the system.
The volume-controlled BNT 1650 control valve records the actual water consumption and controls the regeneration automatically. The system is microprocessor-controlled and designed for demand-based salt and water consumption during regeneration.
Everyday Benefits
Softer water can reduce the cleaning effort on fittings, shower surfaces, and household appliances. At the same time, softening supports a lower-limescale operation of water-bearing appliances such as washing machines, dishwashers, or kettles.
Thanks to automatic regeneration, the system operates largely independently during normal operation. For the operator, the main focus is on regularly checking the salt supply and setting the water hardness appropriately.
System Integration & Compatibility
The R2D2-72 is integrated into the cold water line of the house water installation. Installation typically takes place after the water meter, water filter and, if applicable, pressure reducer, so that the system is protected against contamination and operated within the permissible pressure range.
For installation, a frost-free and dry location, a power connection in the immediate vicinity, and a drain connection for regeneration water are required. Connection set, mounting block, backwash filter and regeneration salt must be considered separately depending on the existing installation.
Technical data at a glance
The most important technical data of the AQMOS R2D2-72 at a glance.
| Water treatment type |
Water softening system |
| Flow rate |
approx. 45 l/min |
| Connection size |
1" female thread |
| Water application range |
Drinking water |
| Max. pressure |
6 bar |
| Max. temperature |
38 °C |
| Height |
1100 mm |
| Width |
220 mm |
| Depth |
460 mm |
| Weight |
22 kg empty |
| Voltage |
230 V |
| Frequency |
50 Hz |
| Power consumption |
max. 15 W |
Installation
Installation is carried out in the house water supply system downstream of the water meter, water filter, and, if applicable, pressure reducer. Connection should be performed by qualified personnel to ensure that flow direction, pressure range, tightness, wastewater routing, and electrical supply are correctly checked.
The wastewater and overflow hoses must be routed separately and with backflow protection to the sewer connection. The installation location must be dry, frost-free, level, and protected from moisture.
Notes
The system is intended exclusively for the drinking water sector and for reducing water hardness. For operation, regeneration salt tablets made of high-purity vacuum salt according to DIN 19604 or DIN EN 973 Type A must be used.
The residual hardness should be set during commissioning to match the local water quality. For drinking water installations, complete softening to 0 °dH is not recommended; the water hardness should be adjusted via blending.
Scope of delivery
- Water softening system AQMOS R2D2-72 complete
- BNT 1650 control valve, pre-installed
- Overflow protection set
- Drain hose 1.5 m
- Operating instructions, German