- Suitable for medium to large dwellings and apartments
- Up to 100 l/s @ 150 Pa max airflow
- Up to 92% heat recovery efficiency
- Down to 0.42 W/l/s specific fan power
- Remote digital control with status indication
- 4 Airflow modes (100% variable): Night, General, Boost, Purge
- Programmable 25%+ boost setting
- Wall and floor mount options
Aircycle 3.1 House Ventilation System
- Suitable for medium to large apartments and dwellings.
- Wall or floor mount including side or top duct connections.
- 0.37 W/l/s Specific fan power.
- 93% Heat recovery efficiency.
€1,921.11
The new aircycle 3.1 Heat Recovery Ventilation system HRV comes with award winning technology, unrivalled performance and versatile installation.
With a Specific Fan Power (SFP) down to 0.37 W/l/s and a heat recovery efficiency up to 93% the aircycle 3.1 succeeds in balancing the trade-off between airflow, efficiency and acoustic performance, offering a system that delivers true comfort ventilation for the end user. Core features include:
- Up to 93% heat recovery efficiency
- Down to 0.37 W/l/s specific fan power
- 100% variable fan speed control
- Independent fan speed control
- 230v auto-boost integration
- Variable boost over-run timer
- Tempering summer bypass (optional)
- Integral humidistat
- Automated frost protection
- Wall or floor mount
- Top and side duct connections
- On-site invert capability
- Easy access air filters (G2 up to G4)
- 5 year guarantee
Weight
29kg
Materials
- Main enclosure: High density, impact resistant EPP (Expanded Polypropylene)
- PCB & control panel enclosure: ABS FR
- Drainage tray: PP
- Filters: Polyester media (G2 up to G4)
- Mounting bracket: Zinc plated steel
- Fan Scrolls: ABS
Electrical
- 230V EC low energy, backward curved centrifugal fans
- PCB c/w potentiometer control
- Supplied complete with 4 core flying lead: (Live: Brown), (Neutral: Black), (Earth: Yellow & Green), (230v Switched Live (Boost): Grey)
- Plug and play components for easy maintenance
Controls
- Independent fan speed control (Trickle and boost settings for each fan)
- Single 230V boost input (Light switch, humidistat, PIR etc.)
- Efficient in-built control board (SAP Q approved)
- Boost over-run timer, adjustable between 0-15min.
- In-built humidity sensor (Boost activation) Variable: 60% – 100% RH, Factory set: 70%
- Frost protection, factory set: 5 Degrees Cel.
- Tempering summer bypass (Automatic variation between 20-27 Degrees Cel.) – Optional
Standards
- Fully complies with Building Regulations for UK & Ireland
- SAP Appendix Q Listed | Energy Savings Trust Best Practice | CE
SPF
Down to 0.37 W/l/s
Efficiency
Up to 93%
Guarantee
5 Years
Product Codes
- Aircycle 3.1 c/w Integral Humidistat AS 90-0301-WIN-01
- Aircycle 3.1 c/w Integral Humidistat & Summer Bypass AS 90-0301-WINS-01
Case Studies

Sika Woods | Heat Recovery Ventilation | Enniskerry
PRODUCT | aircycle 3.1 Digital + Semi-rigid Ducting Range PROJECT | Sika Woods LOCATION | Enniskerry, Co. Wicklow DEVELOPER | Winterbrook MAIN CONTRACTOR | M&E CONSULTANT | McElligott Sika Woods is an exceptional development of stylish, energy efficient housing in Enniskerry, Co. Wicklow. The scheme, consisting of 47 homes, is located adjacent to the beautiful Powerscourt demesne with a stunning aspect to the South towards the Sugar Loaf. Brookvent were contracted to design and supply the Heat Recovery Ventilation system in all 47 homes. The system of choice was the aircycle 3.1 Digital, which boasts an efficiency up to 93% and a digital control offering enhanced controllability allowing for accurate, bespoke commissioning for each property, while giving the end user the flexibility to adjust settings based on their individual needs, within set parameters. The Brookvent airduct semi-rigid range was the duct system of choice, allowing for extra flexibility in the design co-ordination process, delivering significant time savings on first fix install all while ensuring a professional airtight seal. REQUEST CALLBACK