Elta Trade DEXA HR - Single Room Heat Recovery Unit
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DEXA HR – Heat Recovery Ventilation Unit
The DEXA HR is a decentralised mechanical ventilation unit designed for optimal air quality and heat recovery. Available in Ø100mm and Ø150mm sizes, it offers a practical solution for removing CO2, volatile pollutants, and preventing condensation and mould damage, ensuring healthier indoor air and environment.
Ideal for use in residential applications, the DEXA HR operates ultra-quietly, making it perfect for installation in spaces such as living rooms and bedrooms. It can also be used in parallel operation, where two units are synchronised to provide better airflow balance across multiple rooms.
Features and Benefits
- Dual Functionality: Alternates between supply and extract fan modes every 70 seconds. During extract mode, the high-efficiency ceramic heat exchanger captures heat from extracted air, which is then transferred to incoming air during the supply mode.
- Cross-Ventilation: When installed in pairs, the units work in harmony. One unit extracts air from a room while the other supplies air, improving cross-ventilation and overall ventilation effectiveness.
- Free Cooling Mode: Can be set to free cooling to prevent heat exchange when not needed, such as during warmer months, ensuring optimal airflow without unnecessary energy usage.
- Condensation and Mould Control: Constant airflow helps to manage condensation and prevents mould formation, maintaining a healthier indoor environment.
- Removable Front Cover: The modern aesthetic flat front cover is easily removable for quick cleaning without the need for tools.
- Sustainable Design: Components are made from recyclable materials, promoting an environmentally friendly and sustainable solution.
Specifications
- Body Construction: High-quality UV-resistant ABS body for long-lasting, shock-proof construction.
- Colour: White RAL 9010.
- Impeller Design: Features winglets similar to an aeroplane wing for low noise and increased efficiency.
- Motor: Equipped with a highly efficient reversible EC motor with integral thermal protection and high-quality ball bearings.
- Telescopic Pipe: Made from 100% recycled ABS, adaptable to wall thickness and houses the regenerative heat exchanger ceramic core.
- External Grille: Includes an anti-insect net and water drip guard.
- Protection: Rated IPX4 for wall installation and IPX2 for ceiling installation.
- Easy Maintenance: The heat exchanger is easily removable for tenant maintenance.
- LED Indicator: Built-in LED to indicate when the "free cooling" option is active.
Tested and Certified The DEXA HR is tested to the latest standards, including electrical safety, performance, and noise levels, in TÜV Rheinland recognised laboratories. Manufactured in compliance with EN60335-2-80 (Low Voltage Directive) and the EMC Directive (Electromagnetic Compatibility).
Extra Options
- Automatic Speed Control: Optional sensors like the Humidity Sensor or PIR Sensor can increase the speed automatically based on air quality needs.
- Flow Control: Full control of speed or airflow is available with the DEXA HR Control Switch.
Dimensions
| Model | ØA | B | C | D (mm) | E | Weight (kg) |
|---|---|---|---|---|---|---|
| DEXA HR 100 | 164mm | 46mm | 70mm | 270mm-510mm | 108mm | 2.3 kg |
| DEXA HR 150 | 218mm | 51mm | 70mm | 300mm-560mm | 158mm | 3.9 kg |
Performance
| Model | Airflow (L/s) | Power (W) | Sound Pressure (dB(A) @ 3m) | Voltage | Max Ambient Temperature (°C) |
|---|---|---|---|---|---|
| DEXA HR 100 | 7.0 / 4.2 / 2.8 | 2.6 / 1.7 / 1.2 | 29 / 15 / 10 | 220-240 | 50 |
| DEXA HR 150 | 16.7 / 11.1 / 5.6 | 3.8 / 2.3 / 1.4 | 26 / 18 / 10 | 220-240 | 50 |
220-240V ~ 50/60Hz
Data measured in the TÜV Rheinland recognised laboratory at Aerauliqa
Sound pressure level @ 3m in free field, for comparative purposes only
Protection: Wall: IPX4, Ceiling: IPX2
Energy Efficiency The DEXA HR is designed to operate efficiently, extracting stale air and recovering heat from the extracted air. This ensures optimal airflow and heat retention while reducing energy consumption, making it an environmentally friendly and cost-effective solution for improving air quality and maintaining a comfortable indoor climate.
