DAIKIN FDYUAN160A-2V4AL24 15.5kW Inverter Underfloor Ducted Air Conditioner System 1 Phase

Night Time Quiet Mode

Reduces the outdoor noise levels during sleeping hours and automatically resumes normal operations in the morning.

R22 Retrofit Capability

Provides a cost effective and convenient upgrade from an existing R22 ducted system whilst retaining the field piping (not available for 18.0kW, 20.0kW & Heating Focus models).

Australian Made

Indoor units are specifically designed and manufactured to Australian standards to withstand the harsher summer climate.

Improved Energy Efficiency

Achieved through the use of a DC Fan motor, cross-pass heat exchanger and increased outdoor coil passes.

Compact Indoor Unit

Low profile height of ≤360mm to fit comfortably into the tight roof space of a modern home.

Space Saving Outdoor Unit

Models up to 19.5kW are encased in a space saving side discharge outdoor unit allowing for flexible placement.

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Daikin Underfloor Ducted Systems

Daikin’s Underfloor Ducted Systems are an ideal solution for homes in colder climates where heating is a focus. In these situations, units are typically installed underfloor to promote even warm air distribution throughout the home. Now utilising R32 refrigerants for lower GWP impact, Daikin’s Underfloor Systems are the perfect balance of energy performance and home comfort when paired with Daikin’s Zone Controllers.

Why is R32 underfloor different?

The Daikin Underfloor Ducted System has been engineered to ensure the safety of all occupants. The system incorporates a leak detector that activates Daikin’s Refrigerant Control Strategy in the unlikely event of a refrigerant leak. This sophisticated new built-in monitoring and control technology works to dissipate leaks in order to eradicate any flammability hazards, ensuring the system complies with Australian and New Zealand standard 60335.2.40:2019.

How does it work?

1. Upon activation of the leak detector, a signal is sent to the Daikin controller
2. Daikin controller will then operate the system to dissipate the refrigerant from the ducted system:

• Compressor is switched off
• Indoor unit fan operates in fan only mode
• All zone dampers are open

Description

15.5 kW Cooling
18.0 kW Heating
1 Phase

Daikin Controller

We have a range of controllers available to control your DAIKIN ducted air conditioning system to suit your lifestyle needs.

ZONE CONTROLLER

(On/Off Control Only)

Zone Controller Models:
BRC230Z4B9 – Up to 4 Zones (230-240v)
BRC230Z8B9 – Up to 8 Zones (230-240v)
BRC24Z4B9   – Up to 4 Zones (24v)
BRC24Z8B9   – Up to 8 Zones (24v)

FEATURES
1. Backlit display with easy-to-read text.
2. Three different timer and time clock operations for precise, programmable control for your home.
3. Countdown On-Off timer, programmable in 1 hour increments for up to 12 hours.
4. A simple 7-day Time Clock, to program the controller to turn the system on or off at set times any day of the week. Two different on and off programs can be set for each day of the week.
5. An advanced 7-day Time Clock extends the functionality of the Simple 7-day Time Clock with advanced features such as Zone Control and Temperature Sensor Selection, for the ultimate in-home comfort.
6. Airside Control when connected with Premium Inverter (71-250 Class) & Inverter (50-160 Class) Ducted models.

Notes:
1. Airside Control function regulates the fan RPM between 60% to 100% of the indoor unit’s rated airflow
2. Airbase is not compatible with Slave Zone Controller

Daikin AirHub

Features:

• 7” colour resistive touch screen interface housed in a contemporary casing design with a matte white finish.
• Both On/Off or Linear Control options available in either a 4 or 8 zone design.
• Flush mounted 11mm off the wall for a clean, minimalistic look.
• Weekly Schedule Timer with individual zone timer, for programming the system and individual zones on or off at set times of the week.
• Optional wireless remote temperature sensors, ideal for homes with internal brick walls.
• Eco settings such as Setpoint Range Limit, Setpoint Auto Reset and Auto Off Timer enables you to easily reduce your ducted system’s energy consumption.

What is Airside Control?
As zones are turned off, the indoor unit fan reduces speed between 60-100% of the nominal airflow rate to meet the airflow requirement of the remaining open zones for quieter operation and greater energy savings.

What is Optizone Control?

OptiZone Control will automatically regulate the individual zone dampers to deliver precise airflow to meet the temperature settings and heat load of each zone. As the zone dampers adjust, the indoor unit fan speed will intelligently regulate between 30-100% of the nominal airflow rate to deliver the required airflow to maintain the comfort levels of each zone.

On days when the heat load is mild or low, significant energy savings can be achieved through OptiZone Control, truly optimising the system for ultimate comfort.

Q1: What are the main features of the Daikin Inverter Underfloor R32 Series?

The Daikin Inverter Underfloor R32 Series combines efficient underfloor air conditioning with advanced four-zone control. The Daikin Inverter Underfloor R32 Series features Night Time Quiet Mode, AirHub zoning, Australian-made indoor units, improved energy efficiency, and compact indoor and outdoor unit designs for flexible installation.

Q2: Is the Daikin Inverter Underfloor R32 Series energy efficient?

Yes. The Daikin Inverter Underfloor R32 Series achieves improved energy efficiency through the use of a DC fan motor, cross-pass heat exchanger, and increased outdoor coil passes. The Daikin Inverter Underfloor R32 Series helps reduce operating costs while maintaining reliable year-round comfort.

Q3: What are the benefits of the AirHub 4-zone system?

The Daikin Inverter Underfloor R32 Series allows up to four separate zones to be controlled independently. This enables greater comfort and energy savings by conditioning only the rooms being used. The Daikin Inverter Underfloor R32 Series provides personalised climate control throughout the home.

Q4: Can the Daikin Inverter Underfloor R32 Series replace an older R22 system?

Yes. The Daikin Inverter Underfloor R32 Series supports R22 retrofit capability, allowing compatible installations to retain existing pipework when upgrading older R22 systems. The Daikin Inverter Underfloor R32 Series offers a cost-effective and convenient upgrade solution.

Q5: Not sure what size air conditioner you need?

Use our free Air Conditioning Calculator & Size Guide as a starting point to estimate the right capacity for your room or home. Please note this calculator is a guide only — actual requirements may vary depending on your ceiling height, insulation, window size, orientation, and local climate conditions.

For a more accurate sizing recommendation tailored to your specific home or office, we recommend booking a quote with our team. Our air conditioning experts will assess your space and help you choose the perfect Daikin Inverter Underfloor R32 Series unit with confidence — ensuring maximum comfort, efficiency, and value for money.

For more information about the Daikin FDYUAN Series, and available models, click here.

Additional information