HEAT RECOVERY UNIT FRESH FLOW FDX

The Fresh Flow FDX heat recovery ventilation unit, with reversible airflow, is designed for the cold climate of the Nordic countries. The unit recovers and returns up to 85% of the indoor air's heat back inside. This makes Fresh Flow not only an environmentally friendly investment but also an energy-saving one.

The Fresh Flow FDX performs best when installed in pairs in different rooms of the same dwelling, one unit per room or approximately every 15 m². The unit’s airflow capacity is 43 m³/h. While one unit exhausts air for 70 seconds, the other simultaneously brings in fresh outdoor air through a ceramic heat recovery core, then the airflow direction switches. Multiple unit pairs ensure balanced ventilation throughout all 'dry' areas of the home. Ventilation in the home’s humid areas is handled by a bathroom exhaust fan (e.g., Fresh Intellivent Sky) and a makeup air vent located nearby in the entrance hall or similar (e.g., an airtight Fresh TL-series vent). Control is managed either via an app or an optional control panel. The ceramic heat recovery core and fan are located within the duct. The fan is positioned at the inner wall of the duct, protecting the motor from freezing in severe cold—making the unit exceptionally suitable for cold climates.

The Fresh Flow FDX is installed directly into an exterior wall—no ducting is required, saving significant costs. The external dimensions of the unit’s vent section are 270 mm wide and 306 mm high. The unit can be installed in wooden or concrete walls 185–310 mm thick. The through-wall pipe diameter is 160 mm (through-wall opening diameter 180 mm). The interior portion of the unit visible in the room can be wallpapered or painted. Energy consumption is only 3 W, and 1 W in standby mode. The system can be equipped with any desired quantity of the following accessories (see Accessories tab for details): Control panel (7912901/810050), indoor CO2 sensor (7912902/810051), indoor humidity and temperature sensor (7912903/810052), outdoor humidity and temperature sensor (7912904/810053), through-wall duct Ø160, length 550 mm (7912907/810080), EU7 dust filter (7912905/810100), and standard EU3 filter (7912906/810101).

This product description is an automated translation of the original Finnish description.