Single Room Energy Recovery Unit WALLER Wi-Fi CO₂/RH
WALLER Wi-Fi CO₂ and WALLER Wi-Fi RH are two intelligent variants of the modern WALLER wall-mounted energy recovery unit. Equipped with advanced sensors, they automatically respond when carbon dioxide (CO₂) or relative humidity (RH) levels are exceeded, adjusting operation in real time. Thanks to Wi-Fi connectivity and mobile app control, they are ideal for apartments, offices, conference rooms, hotels and cafés.
About the product
WALLER Wi-Fi CO₂ and WALLER Wi-Fi RH are intelligent variants of the wall-mounted decentralised heat recovery ventilator that automatically respond to indoor air quality. Thanks to advanced sensors, the unit automatically adjusts its operation in real time — the CO₂ variant switches to supply mode when the carbon dioxide threshold is exceeded, while the RH variant switches to exhaust mode when humidity rises.
Automatic regulation significantly improves user comfort — there is no need to manually change the operating mode, as the unit takes care of a healthier indoor climate by itself. Ductless wall installation makes this solution suitable for apartments, offices, conference rooms, hotels and cafes, even in existing buildings.
Heat recovery is achieved via a ceramic heat exchanger that, in regenerative mode — with alternating supply and exhaust in 75-second cycles — recovers both heat and moisture, limiting thermal losses. Quiet and energy-efficient operation is delivered by the EC motor with an integrated gravity shutter, while an F7 filter and pre-filter maintain clean supply air. Full control — including setting CO₂ or RH thresholds, changing modes and schedules — is available via the mobile application over Wi-Fi. Energy class “A” qualifies for the “Clean Air” programme.
Key features
- Automatic regulation based on CO₂ or RH level
- Wireless control via Wi-Fi and mobile application
- Regenerative mode with heat and moisture recovery
- Ductless installation — wall-mounted
- Integrated gravity shutter
- Quiet, energy-efficient EC motor operation
- Ceramiczny wymiennik
- F7 filter + pre-filter
- Klasa energetyczna A
Why choose WALLER Wi-Fi CO₂/RH?
Intelligent decentralised heat recovery that responds to air quality
WALLER Wi-Fi CO₂ — in regenerative mode, if the CO₂ level exceeds the set threshold, the unit automatically switches to supply mode to introduce fresh air and reduce the CO₂ concentration.
WALLER Wi-Fi RH — when the set humidity level is exceeded, the unit automatically switches to exhaust mode to reduce the humidity level inside the room.
Automatyczna regulacja rekuperatora
The automatic regulation functions significantly improve user comfort — there is no need to manually change the operating mode. The unit independently maintains indoor air quality, ensuring a healthier microclimate.
Ceramic heat exchanger with efficient energy recovery
In regenerative mode, the unit alternately supplies and exhausts air in 75-second cycles, recovering both heat and moisture. The ceramic heat exchanger enables maximum energy efficiency whilst limiting thermal losses.
Sterowanie mobilne z dowolnego miejsca
Via the mobile application, users have full control over the unit — they can set CO₂ or RH thresholds, change operating modes, activate schedules or check the device status.
W zestawie z filtrem F7
Ensure effective and hygienic operation of your wall-mounted heat recovery unit with the included F7 filter. F7 filter with ISO ePM1 ≥50% for more demanding spaces.
Do you have any questions?
Need technical support? Call us or send a message!
Technical specification
| Parameter | WALLER Wi-Fi CO₂ | WALLER Wi-Fi RH |
|---|---|---|
| Product code | WALLER-CO2-2451 | WALLER-RH-2450 |
| Nominal airflow [m³/h] | 50 | 60 |
| Voltage / frequency [V/Hz] | 100–240 / 50–60 | 100–240 / 50–60 |
|
Rated current [A] 3rd / 2nd / 1st stage |
0,06 / 0,05 / 0,04 | 0,06 / 0,05 / 0,04 |
| Max. heat recovery efficiency [%] | 97 | 97 |
|
Motor power [W] 3rd / 2nd / 1st stage |
7,8 / 7 / 6 | 7,8 / 7 / 6 |
| Motor protection rating IP | X4 | X4 |
| Weight [kg] | 4,2 | 4,2 |
| Noise level [dB] | 32,7 | 32,7 |
| Energy efficiency class | A | A |
Filtry
| Filtr | WALLER 64 | WALLER Wi-Fi | WALLER CO₂/RH |
|---|---|---|---|
| Filtr F7 | 1 × FEU7-WALLER-2448 | 1 × FEU7-WALLER-2448 | 1 × FEU7-WALLER-2453 |
FAQ
WALLER wall-mounted heat recovery units are used in rooms where conventional centralised heat recovery cannot be installed.
The choice mainly depends on the room's requirements.
- For example, the standard WALLER Wi-Fi model is suitable when basic ventilation with heat and moisture recovery is required.
- A decentralised unit with a CO2 sensor is suitable for rooms where carbon dioxide levels may rise, e.g. boiler rooms. The wall-mounted unit automatically adjusts relative to the set humidity value.
- A wall-mounted unit with an RH (humidity) sensor can also be chosen, e.g. in places where moisture removal is critical, such as basements or bathrooms.
Yes, this combination will deliver even better air quality. For example, in a home of approx. 100 m², WALLER RH can be installed in the bathroom instead of a standard fan, and WALLER CO2 in the living room. This arrangement ensures the most effective air circulation, maintaining air quality relative to the set parameters.
WALLER heat recovery units feature a ceramic heat exchanger enabling both heat and moisture recovery.
No, the Wi-Fi module is not available in the WALLER 64. To control the wall-mounted unit via a mobile application, a unit from the WALLER Wi-Fi or WALLER Wi-Fi CO₂/RH series must be purchased.
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