Easy installation thanks to multiple positioning.

Nearly zero maintenance.

High-quality: many parts in metal. Made in France.

Achieved filtration to prevent from outdoor air particles: optimal and large filter surface design to limit the clogging for maximal life-time.


High quality ecological manufacturing

DXR’s galvanized steel protective body and numerous metal parts (heat exchanger, motor support, etc.) give it an optimal robustness for all its different phases of life, from the installation to the maintenance of the product.

A comfortable climate 

The heat recovery ventilation DX Reference continually supplies pollen-free and dust-free fresh air to living areas, ensuring a comfortable feel-good climate. The supply air is preheated by the exhaust air in the very efficient heat exchanger and by the optional preheater.

Even in summer, DX Reference is the best choice                                

As soon as the temperatures rise, the fresh airflows pass through the heat recovery and is directed into the living areas without need for preheating. In cooler summer nights, the fresh air can be used to cool down the heated rooms, by bypassing the heat exchanger thanks to its embedded by-pass.

Easy maintenance

Once installed, the DX Reference is immediately functional. The level of maintenance required is very low. Indeed, thanks to the demand-controlled ventilation and a very wide filter surface, the DX Reference filters’ lifetime is doubled compared to traditional mechanical ventilation with heat recovery. Thanks to its notification system and a clogging detection embedded for each filter, enjoy your home peacefully. The DX Reference will automatically notify you as soon as filters need to be replaced.

HRV unit with demand control   DXR
Standard code   DXR1708
Maximum airflow m3/h 230
Other nominal airflows m3/h 80 / 140 / 200 /230
Airflow compensation (filter clogging)   Automatic
Airflow balance (supply and exhaust)   Automatic
Sound power level Lw @ 161 m3/h, 50 Pa dB(A) 40
Sound power level Lwa [ a / b / c / d ] dB
SEC, Climate kWh/(m².an) Cold : -73.27 / Average : -36.74 / Warm : -13.18
Label (EU Ecodesign Directive)   A
Ecodesign Information   Download the Ecodesign Information
ErP Label  

Download the ErP Label DXR 1708EX

Power supply   230 VAC, 50 Hz
Motor type   EC (x2)
Power  consumption @ 161 m3/h @50 Pa W 34.2
Power consumption @ 230 m3/h @50 Pa W 91.0
Sensors connections   RJ45
Demand control    
Sensors type at supply   Presence / CO2
Exhaust units type   Humidity / presence / switch / CO2 / VOC
Exchanger   Aluminium / Counter flow type / 82 % efficiency
Filters   On supply air: 1 x F7 / On exhaust air: 1 x G4
Weight kg 46
Colour   Galvanized steel
Material (main)   Galvanised steel with phonic and thermal insulation
Dimensions (H x W x L) mm With duct connectors: 260 x 650 x 1 200 Without duct connectors: 260 x 650 x 1 160
Certifications   CE, EAC
Max. number of main rooms   6
Max. number of technical rooms   5
Connections   2 x (2 x ø160 mm)
Installation   Horizontal only, to the false ceiling / 4 points of attachment
Other functions (in option)    
Interface   Control module / Wifi
Bypass   Controlled by outdoor temperature / also used for free cooling
Pre-heating (optional)   With resistance in fresh air ductwork from outside
Condensation management  

Exhaust through lateral tube / optional condensate pump

Temperature of use    
Installation room   Frost Free: +5°c < T° < +50°C
Incoming outdoor fresh air or Extract   -5°c < T° < +50°C without preheating -26°c < T° < +50°C with preheating





Image Code Designation
ADX1098 Preheater
ADX1254 Filter Kit (F7 x1 ; G4 X1)
ADX1099 – Condensate pump for DXR ADX1099 Condensate pump
ADX1106 Fixing suspension system
ADX1673 Module 2I20
RJ cable - DX System

5m: ADX1197
10m: ADX1123
20m: ADX1715
30m: ADX1716

RJ45 cable
IHM1707 Smart interface


DXR 1708EX

ErP Label DXR 1708EX – D5830_C

DXR 230 Reference

Installation and maintenance instruction - TF6775_C

Compatible ventilation systems: