Flexit Nordic CL2 is a ceiling-mounted central air handling unit from the Norwegian Nordic series — designed for installation in suspended ceilings or cold attics with an ultra-low building height of just 296 mm. The rotary heat exchanger delivers a thermal efficiency of up to 85%, airflow up to 271 m³/h and a built-in humidity sensor with full control via the Flexit GO app. Duct connection Ø160 mm. Available in right-hand (RER) and left-hand (REL) configurations. The ideal solution for homes and apartments where installation space is limited — the unit hides discreetly in the ceiling.
Key Benefits
Smart Control via Flexit GO
Control the unit from anywhere via the mobile app or web interface. Modbus support enables integration with smart home systems. The optional NordicPanel provides convenient local control.
Ceiling Installation with Ø160 mm Ducts
The unit is designed for installation in suspended ceilings or cold attics. With a height of just 296 mm, it fits even in tight spaces. Configurable door solution for easy maintenance. Available in left- and right-hand configurations.
Kitchen Hood Connection
Simple bypass duct connection (Ø125 mm) for kitchen range hoods. Supports efficient extraction of cooking vapours directly through the central heat recovery system.
Healthier Air Throughout Your Home
Dual-stage F7 filtration removes fine dust, pollen and allergens. Heat recovery eliminates excess moisture and CO₂, reducing the risk of mould growth and respiratory issues.
Why a ceiling-mounted air handling unit?
The Flexit Nordic CL2 is specifically designed for ceiling or cold attic installation. With a unit height of just 296 mm, it is one of the most compact central air handling units on the market. Unlike wall-mounted models (Nordic S2/S3), it takes up zero living space and remains completely hidden in the ceiling.
The rotary heat exchanger delivers higher heat recovery efficiency in cold climates. Seasonal heat recovery — both summer cooling and winter heating — is a standard feature of the Nordic series. For operation in freezing conditions, the Flexit GO app offers a defrost function that prevents ice build-up and guarantees reliable year-round performance.
Annual Energy Savings
Flexit Nordic CL2 significantly reduces heating costs thanks to the high efficiency of its rotary heat exchanger. Indicative annual savings by climate zone:
(e.g. Scandinavia, alpine regions)
(e.g. Central Europe)
(e.g. Mediterranean region)
Technical Specifications
| Parameter | Value |
|---|---|
| Heat exchanger thermal efficiency | up to 85% |
| Max. airflow | 271 m³/h (75 l/s) |
| Heat exchanger type | Rotary (enthalpy) |
| Energy class | A |
| Filter class | 2× ePM1 55% (F7) |
| Filter dimensions | 290×230×48 mm |
| Sound power level | < 35 dB(A) at 10 m² Sabine |
| Rated voltage | 230 V / 50 Hz |
| Rated power (total) | 529 W |
| Fan power | 2×85 W |
| Electric heater power | 350 W |
| Rotor motor power | 4 W |
| Rated current | 2.3 A |
| Fuse | 10 A |
| Fan type | B-wheel, 0–10 V control |
| Max. fan speed | 3,200 rpm |
| Duct connection | Ø160 mm |
| Kitchen hood connection | Ø125 mm |
| Dimensions (W×H×D) | 1,160×700×296 mm |
| Building height | < 300 mm |
| Weight | 56 kg |
| Colour | White, RAL 9016 |
| Control | Flexit GO (LAN, cloud, app) |
| Compatibility | Modbus, Flexit GO, NordicPanel (optional) |
| Installation | Ceiling (suspended ceiling / cold attic) |
| Certification | Eurovent, Nordic Swan Ecolabel |
| Configuration | Right-hand (RER) / Left-hand (REL) |
Flexit Nordic CL2 vs CL3 — which model to choose?
The Nordic CL2 is a ceiling-mounted version of the Nordic series with an ultra-low profile (296 mm) and Ø160 mm duct connections — ideal for installation in suspended ceilings or cold attics. All Nordic models share the same rotary heat exchanger with 85% efficiency, Flexit GO control and F7 filtration.
For larger spaces with ceiling installation, we recommend the Flexit Nordic CL3 with higher airflow capacity. If you prefer wall mounting, take a look at the Flexit Nordic S2 or Flexit Nordic S3.
Compact. Quiet. Hidden in the ceiling.
Flexit Nordic CL2 is the ideal ceiling-mounted air handling unit for homes and apartments where every centimetre of space counts. Ultra-low profile, exceptional quietness and smart control via Flexit GO — available in right-hand (RER) and left-hand (REL) configurations.
| Model (Exterior side) | REL (Left) or RER (Right) |
| Brand | Flexit |
| Max. air flow m³/h | 271 m³/h |