The Brookvent Aircycle 4.1 Digital is a high-performance Mechanical Ventilation with Heat Recovery (MVHR) system designed for medium to large residential properties, including houses and apartments up to 300 m².
Combining high heat recovery efficiency with low specific fan power and advanced digital controls, the Aircycle 4.1 provides continuous, balanced ventilation while helping to minimise heat loss and energy consumption.
The system extracts stale, moisture-laden air from kitchens, bathrooms, utility rooms and other wet rooms, while supplying fresh, filtered air to habitable spaces such as bedrooms and living rooms. Before the extracted air is discharged outside, its heat energy is transferred through the heat exchanger to the incoming fresh air. This helps reduce ventilation-related heat loss while maintaining a consistent supply of fresh air throughout the property.
Energy-Efficient Performance
With heat recovery efficiency of up to 94% and Specific Fan Power (SFP) from 0.41 W/l/s, the Aircycle 4.1 is engineered to deliver efficient ventilation for larger residential properties. Its high-performance heat exchanger and EC fan technology help reduce energy consumption while maintaining the airflow required for a comfortable indoor environment.
By recovering heat that would otherwise be lost through ventilation, the system can help reduce space-heating demand and support energy-efficient building design.
Advanced Digital Control
The Aircycle 4.1 Digital offers four fully variable airflow modes, allowing ventilation rates to be adjusted to suit the property's requirements:
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Night mode: Supports quieter ventilation during sleeping hours.
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General mode: Provides everyday ventilation at the commissioned airflow rate.
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Boost mode: Increases ventilation when additional extraction is required, such as during cooking or showering.
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Purge mode: Provides a higher ventilation rate when rapid air replacement is needed.
The required remote digital controller provides access to system settings and operating information, supporting precise commissioning and adjustment within the configured parameters. Additional features include programmable boost settings, operating-hours monitoring, fault alerts and filter maintenance reminders. The filter reset Pin is 1234.
Automatic Summer Bypass
The automatic summer bypass allows incoming fresh air to bypass the heat exchanger when heat recovery is not required. This helps prevent unwanted heat recovery during warmer conditions, while maintaining filtration of the incoming air.
Automatic Frost Protection
Integrated frost protection helps protect the heat exchanger during cold weather. The system automatically adjusts its operation to reduce the risk of ice forming within the heat recovery core, supporting reliable operation in low temperatures.
Integral Humidity Control
The integrated humidity sensor can automatically increase ventilation in response to rising relative humidity, helping remove excess moisture from kitchens, bathrooms and other wet rooms.
Flexible Installation
Designed for practical installation in residential projects, the Aircycle 4.1 can be mounted on a wall or floor. Its duct connections can also be inverted on-site, providing greater flexibility when planning duct routes and positioning the unit within the building.
These installation options make it suitable for a range of applications, from individual self-build homes to contractor-led housing developments and architect-designed properties.
Please Note - The Aircycle 4.1 Digital has to be used with the aircycle controller, the unit will not work if you do not have a controller. The controller is also sold separately.
