
RECOM 3 SET EPP EC Enthalpy Heat Recovery Unit
Compact ceiling-mounted AHU with a lightweight EPP casing and quiet operation
Enjoy fresh and clean air in your home without any noise. The RECOM 3 EPP EC series air handling units feature an ultra-light EPP casing, quiet operation, and high energy efficiency. Ideal for spaces where saving room and ensuring maximum comfort with ceiling installation is key.
Ultra-quiet operation - 29 dB(A)
Emits only 29 dB(A) of noise, ensuring peace in your home even when operating at higher capacities.
Lightweight EPP casing - 15 kg
Innovative material ensures excellent thermal insulation, prevents thermal bridges, and makes installation easier.
Efficient ventilation - 310 m3/h
High-performance EC fans consume little electricity and ensure an optimal microclimate.
Why choose RECOM 3 EPP EC?
Discover a new level of home comfort with the RECOM 3 EPP EC air handling unit. This device is designed to meet the highest demands of modern homes - from energy savings to ultra-quiet operation. The main distinctive feature of this model is its lightweight, thermally insulating EPP (expanded polypropylene) casing. Weighing only 15 kg, ceiling installation becomes much simpler and faster, and the casing design prevents thermal bridges.
Two heat exchangers - customized for your needs
Depending on your home's microclimate needs, you can choose an enthalpy (SET) or a standard plate (ST) heat exchanger. The enthalpy variant is highly popular because it recovers moisture back into the rooms, preventing them from drying out in winter, and it does not require a condensate drain. Meanwhile, the standard plate model stands out with even higher heat recovery efficiency (up to 91%), though it requires a drainage line.
Smart control and reliability
RECOM 3 EPP EC offers flexible control options. By choosing the model with FPD automation, you will receive a modern touch screen and an integrated Wi-Fi module, allowing you to control the system conveniently from your smartphone. With the help of ORO Haus specialists, you can easily configure the entire ventilation system, ensuring long-lasting and flawless operation.
| Which to choose? | Enthalpy (SET) | Plate (ST) |
|---|---|---|
| Purpose | Moisture and heat recovery | Heat recovery only |
| Heat recovery | Up to 84% | Up to 91% |
| Energy class | A | A |
| Humidity | Maintains natural humidity | Dries air in winter |
| Condensate | No drainage needed | Drainage required |
Key RECOM 3 EPP EC specifications
Familiarize yourself with the technical parameters of the RECOM 3 EPP EC. These indicators ensure efficient home ventilation with minimal energy consumption.
| Specification | Enthalpy (SET) | Plate (ST) |
|---|---|---|
| Max. airflow | 310 m3/h | 310 m3/h |
| Heat recovery efficiency | Up to 84% | Up to 91% |
| Noise level (3 m) | 29 dB(A) | 29 dB(A) |
| Energy class | A | A |
| Max. power consumption | 151 W | 151 W |
| Duct diameter | 160 mm | 160 mm |
Dimensions and weight
Thanks to its compact dimensions and lightweight EPP casing, the unit is easy to install in tight ceiling spaces.
| Parameter | Enthalpy (SET) | Plate (ST) |
|---|---|---|
| Length | 1060 mm | 1060 mm |
| Width | 640 mm | 640 mm |
| Height | 290 mm | 290 mm |
| Weight | 15.0 kg | 15.0 kg |
Features and capabilities
The unit integrates modern features that ensure automated and smooth operation throughout the year.
| Feature | Enthalpy (SET) | Plate (ST) |
|---|---|---|
| Bypass mode | Yes, automatic | Yes, automatic |
| Summer mode | Yes | Yes |
| Frost protection | Yes | Yes |
| Filters | G4 or F7 (supply) / G4 (extract) | G4 or F7 (supply) / G4 (extract) |
| Control | FPD (with Wi-Fi) or FP (basic) | FPD (with Wi-Fi) or FP (basic) |
This installation guide will help you understand the main steps for installing the RECOM 3 EPP EC AHU on the ceiling. We recommend entrusting the work to qualified specialists, and you can always download the full manufacturer manual from the specifications tab.
What is in the box
Standard unit package:
- Fully assembled AHU with EPP casing and integrated automation
- Standard filter set
- User and installation manual
- Selected control panel (FPD or FP)
What you will need additionally
Components required for installation that are not included:
- Threaded rods and nuts for suspension
- Vibration isolation pads (recommended)
- Ductwork system elements and flexible connectors
- Condensate siphon and tubing (for ST model only)
Dimensions and location selection
The unit is mounted horizontally to the ceiling. Ensure there is enough space below to open the service doors and replace the filters. Since the casing weighs only 15 kg, installation is significantly easier than with metal alternatives.
Duct connection
Standard 160 mm ducts are used. When connecting ducts to the AHU, it is recommended to use flexible connectors to dampen vibrations and prevent noise transmission. Observe the airflow directions indicated on the unit's casing.
Condensate drainage
If you chose the enthalpy (SET) model, a condensate drain is not required. If you are using the plate (ST) model, a U-trap siphon with a non-return valve must be installed to prevent sewer odors from entering the ventilation system.
Electrical connection
The device connects to a standard 230V network. The maximum power is 151 W (without an electric heater). All electrical connections must be performed by a qualified electrician in accordance with safety regulations.
Control systems
If the FPD model is selected, the control panel supports Wi-Fi, making it easy to connect to the home network and control the system via a smartphone app. Sensors (if used) are connected to the designated automation terminals.
First start
Before turning on the system for the first time:
- Check that the filters are installed correctly
- Ensure that the ducts are sealed and installed according to the diagram
- Power on the unit and balance the airflows using the control panel
Maintenance and filters
Regularly check filter contamination. It is recommended to replace them every 3-6 months, depending on the ambient air quality. The heat exchanger should be cleaned once a year according to the manufacturer's instructions.

Build a smart ventilation system with RECOM 3 EPP EC
Complete your unit with high-quality ducts, diffusers, and silencers to enjoy flawless comfort in your home.
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