ATENA Water Softener — Compact Design with Colour Touchscreen

ATENA water softener overview

The ATENA is a water softener with a square, compact design, engineered to integrate elegantly into your home. Available in two capacities — 10 litres and 25 litres — it combines technical performance with modern aesthetics. Its square tank optimises space and its refined finish allows it to blend into your home décor, where traditional softeners impose a bulky cylindrical footprint.

Distributed by DIMM across Europe, the ATENA is a product by Floteck, distributed across Europe by DIMM.

Colour LCD touchscreen

The ATENA stands out with its colour LCD touchscreen, a rare feature in this price range. The interface displays in real time:

• Time and date — automatic synchronisation
• Regeneration mode — volumetric with calendar override 0-99 days + holiday mode
• Remaining capacity — volume of softened water still available before next regeneration
• Working flow rate — instant consumption

The screen offers a multi-language interface for intuitive operation, regardless of the installation market.

Upflow regeneration

The ATENA uses upflow regeneration (counter-current), the most efficient technology for regenerating water softener resins. Unlike conventional downflow systems, upflow regeneration:

• Saves salt — 30–50% lower consumption at equal capacity
• Saves water — less rinse water required
• Improves regeneration quality — the most used resin layers are regenerated first
• Extends resin lifespan — more uniform, gentler regeneration

Intelligent automatic functions

The ATENA operates fully automatically after initial parameter setup:

• Automatic backwash — triggered based on elapsed time and consumed flow, with no manual intervention
• Anti-bacterial refresh cycle — when water has not been used for 7 days, the softener automatically runs a cycle to prevent bacterial growth in the resins
• Overflow protection — a safety system drains excess water in case of overfilling, protecting against salt tank overflow

Robust and practical design

The ATENA tank is square and compact to optimise installation space. Its design is characterised by:

• Robustness — reinforced structure that prevents deformation during salt and water filling
• Removable lid — easy access for salt refilling without tools
• Built-in handles — easy to move during installation or maintenance
• Modern design — clean, sleek appearance that suits any interior

Technical specifications

Feature	ATENA 10 L	ATENA 25 L
Control system	Electronic — colour LCD touchscreen
Regeneration type	Counter-current (upflow)
Regeneration mode	Volumetric with calendar override 0-99 days + holiday mode
Resin volume	10 litres	25 litres
Vessel size	10 x 15	10 x 35
Salt storage capacity	15 kg	56 kg
Water per regeneration (96 g/L)	42 L	118 L
Dimensions (W × D × H)	332 × 467 × 550 mm	332 × 467 × 1060 mm
Plumbing connections	3/4" angled fittings
Power supply	110-120V / 220-240V AC 50/60 Hz — Output 12V AC 650 mA
Water temperature	4 to 43 °C
Service pressure	2 to 8.6 bar
Protection	Dual overflow safety
Anti-bacterial cycle	Automatic (7 days)
Certifications	NSF, CE, ACS, KTW, W270

Which ATENA model to choose?

The choice between the 10 L and 25 L model depends on water hardness, number of occupants and consumption profile. The 10 L model (H 550 mm) is ultra-compact for small spaces. The 25 L model (H 1060 mm) offers high capacity for high-consumption installations.

Installation and commissioning

Installing the ATENA water softener is quick and straightforward for any qualified installer:

1. Position the unit near the main water inlet, on a flat and stable surface
2. Connect the water inlet and outlet via the supplied bypass, using mandatory flexible hoses
3. Connect the drain hose to a regulatory siphon (mandatory)
4. Plug in the power supply
5. Fill the salt tank (tablet salt recommended)
6. Program the unit: operating mode, resin capacity and cycle times
7. Run an initial regeneration cycle

Routine maintenance

The ATENA requires minimal maintenance thanks to its automatic functions:

• Salt — Check the level monthly, top up with tablet salt (avoid rock salt)
• Resin cleaner — Annual treatment with a resin cleaner extends resin lifespan
• Residual hardness — Test with a TH kit every 6 months
• Professional service — DIMM recommends an annual check by an authorised technician

Documentation downloads

Why choose DIMM for your ATENA water softener?

DIMM distributes the ATENA water softener across Europe. By ordering from DIMM, you benefit from:

• Permanent stock — both models available within 24–48 hours from our 15,000 m² warehouse in Poperinge
• Technical advice — free sizing based on your water analysis
• Spare parts — resins, seals and accessories always in stock
• Responsive after-sales — phone support and on-site service across Europe
• Installer training — commissioning and maintenance training sessions