HRU-PremAIR: High-Efficiency Heat Recovery Ventilation Units
The HRU-PremAIR series represents a new generation of heat recovery units, meticulously engineered for exceptional performance and reliability. Designed for continuous, energy-saving operation, these units combine a lightweight, self-supporting EPP casing with highly efficient EC fans. Achieving Energy Class A or A+, the PremAIR series ensures minimal power consumption while delivering optimal indoor air quality, making it an ideal choice for modern residential and light commercial projects.
Key Features & Benefits for Professionals
Exceptional Thermal Efficiency: Achieves heat recovery efficiency up to 93.1% (acc. to EN13141-7), significantly reducing heating costs for the end-user.
Advanced Exchanger Options: Choose the ideal core for your project's needs, from high-efficiency aluminium to advanced enthalpy membranes that also manage humidity.
Intelligent Airflow Control: The optional Constant Flow (CF) module proactively adjusts fan speed to compensate for pressure changes (e.g., filter clogging), ensuring specified airflows are maintained over time.
Smart Home Ready: Seamless integration with systems like Loxone and full control via a mobile application (Wi-Fi) provide flexibility for architects and convenience for users.
Durable & Insulated Construction: The self-supporting casing made of Expanded Polypropylene (EPP) provides excellent thermal and acoustic insulation while being lightweight and robust for easy installation.
Superior Air Quality: Equipped with standard ISO Coarse 70% filters, with an optional upgrade to ISO ePM1 55% (F7) for enhanced filtration of fine particles.
Exchanger Technology: A Deeper Look
The heart of the PremAIR unit is its counterflow exchanger, available in multiple configurations to meet specific technical requirements.
Counterflow Exchanger (PET / Aluminium): The standard option, made of high-efficiency materials, is optimised for maximum heat recovery in all conditions.
Enthalpy Exchanger (ERV): Features a specialist polymer membrane that not only recovers heat but also transfers moisture from the extract air. This helps maintain a comfortable indoor humidity level, preventing excessive dryness in winter. The membrane also effectively blocks the transfer of odours, bacteria, and spores.
Technical Specifications Overview
This table provides key performance data for the core models in the HRU-PremAIR series, designed for vertical wall-mounted installation.
Key Technical Data for HRU-PremAIR Models
Model
Max. Air Flow (@ 100 Pa)
Max. Thermal Efficiency¹
Max. Power Consumption
Sound Power Level (LWA)
Dimensions (W x H x D)
PremAIR-350 / 350E
350 m³/h
up to 93.1%
150 W
44 dB(A)
730 x 906 x 502 mm
PremAIR-450 / 450E
450 m³/h
up to 91.7%
220 W
48 dB(A)
730 x 906 x 502 mm
PremAIR-500
500 m³/h
up to 82.6%
220 W
49 dB(A)
730 x 906 x 502 mm
Advanced Control & System Connectivity
The HRU-PremAIR series is built for flexibility, offering a comprehensive suite of control and connectivity options to simplify integration.
Versatile Control: Operation is managed by an advanced PCB, allowing for both wireless and wired communication with a wide range of control panels and sensors (CO2, RH, PIR).
Remote Access: All units can be connected to the internet, enabling full control and monitoring via the dedicated mobile application.
System Integration: A potential-free contact on the main board allows for straightforward connection and cooperation with a kitchen hood.
External Connections: The system is prepared for optional connectivity with a ground heat exchanger and an external pre-heater for enhanced performance in harsh climates.
