The Daikin FDYAN85AV1 / RZA85C2Y1 is a powerful and efficient reverse cycle ducted system designed for medium to large homes, townhouses, offices, and open-plan living spaces. With 3-phase power, inverter technology, and a compact indoor profile, it delivers discreet year-round comfort while remaining hidden within the ceiling space.
With 8.5kW cooling and 10.0kW heating capacity, this model is ideal for larger living areas, 3–4 bedroom homes, and spaces around 38–70m² depending on insulation and layout. The inverter compressor can modulate output from 3.2kW up to 10.0kW in cooling mode and from 3.5kW up to 11.2kW in heating mode, helping improve efficiency and maintain stable indoor temperatures.
Key Features & Benefits
3-Phase Power Supply
This model operates on 380–415V 3-phase power, making it ideal for homes or commercial properties with 3-phase electrical supply. It can help reduce electrical load across circuits compared to large single-phase systems.
Advanced Inverter Technology
Daikin’s inverter technology continuously adjusts compressor speed to maintain a more stable indoor temperature while reducing power consumption and operating noise compared to conventional fixed-speed systems. The system uses a hermetically sealed swing compressor for reliable performance.
Compact Indoor Unit Design
The indoor unit has a low-profile height of approximately 300mm, making it ideal for tighter roof spaces in modern homes. Indoor dimensions are approximately 300mm high, 1210mm wide, and 900mm deep, while the outdoor unit measures around 990mm high, 940mm wide, and 320mm deep.
Strong Airflow Performance
The unit provides rated airflow of approximately 580 litres per second, with maximum airflow up to 600 litres per second, helping deliver even conditioned air across multiple rooms and open-plan spaces. Indoor sound levels are approximately 42.0dBA in cooling mode and 42.4dBA in heating mode.
Night Quiet Mode
Daikin’s Night Quiet Mode reduces outdoor operating noise during sleeping hours and automatically resumes normal operation in the morning, helping minimise disturbance to occupants and neighbours.
Improved Energy Efficiency
The system delivers an EER of 3.36 and COP of 3.57, helping reduce running costs while maintaining strong heating and cooling performance. Residential TCSPF ratings reach up to 4.29 in hot climates.
Long Pipe Run Capability
The system supports refrigerant pipe lengths up to 50 metres, making it suitable for multi-room homes and more complex ducted installations.
Wide Operating Range
The system can operate in cooling mode from -5°C to 46°C outdoor temperature and in heating mode from -15°C to 16°C outdoor temperature, making it suitable for year-round Australian conditions.
R32 Refrigerant
The system uses modern R32 refrigerant for improved efficiency and lower environmental impact compared to older refrigerants.
R22 Retrofit Capability
This model supports R22 retrofit applications, allowing existing pipework to often be reused when replacing older systems, helping reduce installation time and costs.
Wired Controller Compatibility
The system is commonly paired with Daikin’s BRC1E63 wired wall controller, providing simple scheduling, temperature control, and system management.
5-Year Manufacturer Warranty
Daikin ducted systems are backed by a 5-year manufacturer warranty for residential applications when professionally installed and maintained.
Ideal Applications
- 3–4 bedroom homes
- Townhouses
- Open-plan living areas
- Home offices
- Small commercial spaces
- Homes with 3-phase power available
Why Choose the Daikin 8.5kW 3-Phase Inverter Ducted System?
The Daikin FDYAN85AV1 / RZA85C2Y1 is a compact, efficient, and flexible ducted solution designed for homes and businesses that already have 3-phase power available. With its slim indoor profile, inverter technology, strong airflow, Night Quiet Mode, and efficient 3-phase operation, it is an excellent option for modern homes with limited roof space.
