
RECOM 4 RT EC Rotacinis Rekuperatorius
Powerful and slim ceiling-mounted air handling unit with smart Wi-Fi control
Enjoy fresh air and silence in your home without any worries. RECOM 4 RT EC provides efficient ventilation (up to 440 m³/h), quiet operation thanks to 40 mm insulation, and convenient smartphone control.
Powerful airflow - 440 m³/h
Efficiently supplies fresh air to larger apartments or houses, ensuring a perfect microclimate.
Compact - just 308 mm height
The extremely slim casing easily fits under suspended ceilings, saving precious home space.
Silence - from 21 dB(A)
Thanks to 40 mm insulation, the unit operates unnoticeably and does not disturb your peace during sleep.
Why choose RECOM 4 RT EC?
Feel the difference with RECOM 4 RT EC - a powerful air handling unit designed for your peace of mind. Extremely quiet operation ensures you won't hear intrusive noise in your living spaces. The white-painted casing with 40 mm mineral wool insulation protects not only against sound but also heat loss. The compact design, just 308 mm high, allows this ceiling-mounted unit to be easily hidden above suspended ceilings, so it won't ruin your interior design.
By using efficient and modern EC motors, your ventilation system will consume significantly less electricity. Additionally, the integrated Wi-Fi module provides the convenience of controlling air quality directly from your smartphone via the RECOM AHU app, no matter where you are.
One housing - two efficiency standards
The same quiet and robust housing conceals two different rotary heat exchanger technologies to meet your unique needs.
Rotary (RT) - comfort without condensate
The standard aluminum rotary heat exchanger efficiently transfers heat (up to 88%) and maintains pleasant humidity in the home. The main advantage of this solution is that it requires absolutely no condensate drainage system, making installation much easier. It's a great choice for everyday home comfort.
Sorption (RTS) - maximum moisture balance
For more demanding spaces, the sorption rotary heat exchanger, additionally coated with aluminosilicate, is offered. This technology allows moisture to be returned to your rooms even more efficiently, which is especially relevant during the cold season when indoor air becomes too dry. It achieves up to 82% heat recovery efficiency.
Complete ventilation system with REC BalticVent
A good air handling unit is just the foundation of a high-quality system. For the system to work quietly and efficiently, it's important to choose the right 200 mm diameter ducts, silencers, and air diffusers. The ORO Haus team will help configure and adapt the entire ventilation system for your home, ensuring the best result.
| Which to choose? | Rotary (RT) | Sorption (RTS) |
|---|---|---|
| Purpose | Standard ventilation and moisture recovery | Enhanced moisture recovery |
| Heat recovery | Up to 88% | Up to 82% |
| Energy class | A | A |
| Humidity | Maintains comfortable level | Maximum moisture retention |
| Condensate | No drainage needed | No drainage needed |
| Heat exchanger material | Aluminum | Aluminum with aluminosilicate coating |
Key "RECOM 4 RT EC" specifications
These numbers will help you understand why the unit is perfect for maintaining the microclimate of larger homes. The exceptionally high airflow ensures freshness, while high heat recovery means lower bills.
| Specification | Rotary (RT) | Sorption (RTS) |
|---|---|---|
| Max. airflow | 440 m³/h | 440 m³/h |
| Heat recovery efficiency | Up to 88% | Up to 82% |
| Noise level (3 m) | From 21 dB(A) | From 21 dB(A) |
| Energy class | A | A |
| Supply voltage | 1~220-240 V / 50 Hz | 1~220-240 V / 50 Hz |
| Max. power consumption (no heater) | 185 W | 185 W |
| Max. power with heater | 1585 W | 1585 W |
"RECOM 4 RT EC" dimensions and weight
Consider these measurements when planning a location for the unit. The extremely slim 308 mm design is tailored for convenient ceiling installation.
| Parameter | Rotary (RT) | Sorption (RTS) |
|---|---|---|
| Length | 1170 mm | 1170 mm |
| Width | 700 mm | 700 mm |
| Height | 361 mm | 361 mm |
| Weight | 72 kg | 72 kg |
| Duct connections | 4 x Ø 200 mm / 1 x 125 mm | 4 x Ø 200 mm / 1 x 125 mm |
"RECOM 4 RT EC" features and capabilities
Convenient smart control and a quality filtration system will ensure that daily use of the air handling unit is simple and effortless.
| Feature | Rotary (RT) | Sorption (RTS) |
|---|---|---|
| Boost function | Yes | Yes |
| Condensate drainage | Not required | Not required |
| Electric heater | Yes, integrated 1.2 kW (0-10V) | Yes, integrated 1.2 kW (0-10V) |
| Extract air filter | G4 class | G4 class |
| Outdoor air filter | F7 class (H13 optional) | F7 class (H13 optional) |
| Control | Wi-Fi via RECOM AHU app | Wi-Fi via RECOM AHU app |
| CO2 / Humidity sensors | Supported (purchased separately) | Supported (purchased separately) |
RECOM 4 RT EC is a reliable and extremely slim ceiling-mounted ventilation unit, ideal for installation above suspended ceilings. This guide will help you understand the main installation requirements. The full manufacturer's manual can be found in the specifications tab.
What is in the box
The standard manufacturer package includes:
- Fully assembled air handling unit with 40 mm insulation, integrated automation, and a Wi-Fi module.
- Filters: G4 class extract air and F7 class outdoor air filters.
What you will need additionally
For successful ventilation system installation, you will need to purchase additionally:
- Mounting hardware (threaded rods and nuts) [NOT IN PDF].
- Vibration isolation pads for noise reduction [NOT IN PDF].
- Power cable and an appropriate circuit breaker [NOT IN PDF].
- Ductwork system components, flexible connectors, and diffusers [NOT IN PDF].
- External sensors (e.g., CO₂ or humidity), if you plan to use them.
Dimensions and location selection
The external dimensions of the unit are 1170 mm length, 700 mm width, and just 308 mm height. When mounting above the ceiling, it is necessary to leave technical access from the front panel for free filter maintenance. This unit handles air temperatures from -25 to +40 °C. Mounted under the ceiling, it will be both effective and visually unseen.
Duct connection
Main 200 mm diameter ducts (4 connections) and one 125 mm connection connect to this unit. To reduce vibration transmission to the duct system and maintain quiet operation, flexible connectors are recommended [NOT IN PDF]. Ducts located in unheated spaces or supplying outdoor air must be properly insulated.
Condensate drainage
Unlike plate heat exchangers, this model uses a rotary heat exchanger, so a condensate drainage system is usually not required as condensation does not form inside the unit. This makes installation significantly easier and faster.
Electrical connection
Electrical work must only be performed by a qualified electrician. The unit is designed for a single-phase network and powered by 220-240 V, 50 Hz. The maximum current with the integrated electric heater operating reaches 6.9 A. Proper grounding and appropriately rated circuit breakers must be ensured.
Control systems
The unit is most conveniently controlled directly via Wi-Fi using the manufacturer's "RECOM AHU" mobile app on your smartphone. The system also allows connecting a wired control panel (FPD or FP) , as well as adding CO₂ or humidity sensors for smart operation.
First start
Before leaving the system for continuous operation, check:
- Whether the G4 and F7 class filters are installed correctly and undamaged.
- Whether all duct connections are sealed and complete.
- Power on the unit via the "RECOM AHU" mobile app and perform test airflow balancing.
Maintenance and filters
The guarantee of a clean ventilation system is regular filter replacement. The unit is equipped with G4 class extract air and F7 class outdoor air filters. Replacement intervals are dictated by pollution, but for convenience, the unit's engine hour meter will notify you of upcoming filter changes. Access to filters is via the front panel.

Build the perfect ventilation system with RECOM 4 RT EC
While a powerful air handling unit is the most important part, proper 200 mm ducts and quality diffusers are essential for complete comfort. ORO Haus specialists will help smoothly integrate all components into a single efficient system.
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