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Fujitsu
Fujitsu 22.4kW High Static Ducted Reverse Cycle Air Conditioner (Three Phase)
Cooling22.4kW
Heating25.0kW
Room size300-450 m2
Indoor noise42-50 dB
Warranty5 years
The Fujitsu ARTH90KHTA is a 22.4kW high static ducted reverse cycle air conditioner designed for the largest Australian residential homes and requiring a three-phase power supply. Paired with the AOTH90KRTA outdoor unit on a 400V three-phase supply, it provides whole-home cooling and heating through ceiling-mounted ducts with zone control support.
Inverter-driven and using R32 refrigerant, the ARTH90KHTA delivers 22.4kW of cooling and 25.0kW of heating — the highest capacity in the Fujitsu High Static ducted residential range. The 75m maximum pipe run provides significant installation flexibility for large properties. Three-phase power supply availability must be confirmed during site assessment before specifying this unit.
Final sizing should be confirmed through an on-site assessment, as insulation, ceiling height, glazing, sun exposure and room layout can all affect the right unit choice.
Overview of Fujitsu 22.4kW High Static Ducted Reverse Cycle Air Conditioner (Three Phase)
▾The ARTH90KHTA is the flagship model in Fujitsu’s Large Capacity High Static ducted range, delivering 22.4kW of rated cooling and 25.0kW of rated heating in a three-phase reverse cycle system. The indoor unit installs in the ceiling cavity and the AOTH90KRTA three-phase outdoor unit is mounted externally.
At this capacity level, the system is suited to very large homes, high-specification builds, or properties with significant thermal loads. Zone control directs airflow to specific rooms or areas. The three-phase supply at 400V keeps running current at 11.7 A despite the large capacity.
Zone control for room-by-room airflow management.
Inverter compressor for variable-capacity operation and stable temperatures.
R32 refrigerant — approximately 67% lower global warming potential than R410A.
75m maximum pipe run for installation flexibility on large properties.
Three-phase 400V operation keeps running current manageable at this capacity level.
Economy mode for reduced energy draw during light-load periods.
Auto changeover between heating and cooling modes.
Ambient cooling operation up to 50°C.
Optional WiFi control via UTY-ANY2 anywAiR module (not included standard).
Is the Fujitsu 22.4kW High Static Ducted Reverse Cycle Air Conditioner (Three Phase) right for your home?
▾The ARTH90KHTA is estimated to suit homes with a total floor area of approximately 300 to 450 m2, making it the top choice for very large Australian homes, acreage properties, or high-specification builds with significant thermal demands. Actual coverage depends on insulation, ceiling height, glazing, sun exposure, number of zones and duct layout.
This unit requires a three-phase 400V power supply. Homes without existing three-phase power will need a supply upgrade, which adds significant cost and must be assessed by a licensed electrician before the system can be specified.
Performance & Efficiency
▾Cooling Capacity
22.4 kW
Heating Capacity
25 kW
Recommended Room
300–450 m²
Inverter
Yes
YesEER
3.02
COP (Heating)
3.73
Star ratings shown for average Australian climate zone (GEMS). Three-phase unit; energy ratings applicable to Australian three-phase installations.
Noise Levels
▾Indoor Min
42 dB(A)
Indoor Max
50 dB(A)
Outdoor
60 dB(A)
Indoor noise is sound pressure dB(A) varying by fan speed (range 42-50 dB). Outdoor noise is sound pressure at 1m in cooling mode; heating mode outdoor noise approximately 62 dB(A).
Power & Installation
▾Power Supply
415V Three Phase
Max Power Input
7.42 kW
Max Current
11.7 A
Max Pipe Length
75 m
Max Pipe Height
30 m
Pairs with AOTH90KRTA outdoor unit. THREE-PHASE 400V power supply required — site must have three-phase power available. Maximum pipe run 75m (factory precharged to 30m; field refrigerant charge required beyond 30m). Confirm three-phase supply availability during site assessment.
Refrigerant & Environment
▾Refrigerant
R32
R32 has approximately 67% lower global warming potential than R410A.
Dimensions & Weight
▾Indoor (W×H×D)
1400 × 360 × 850 mm
Outdoor (W×H×D)
970 × 1418 × 370 mm
Warranty
▾Warranty period
5years
5-year parts and labour residential warranty. Requires licensed installation and registration with Fujitsu General Australia.
Model Details
▾Model NameHigh Static
Model NumberARTH90KHTA
Indoor UnitARTH90KHTA
Outdoor UnitAOTH90KRTA
Features
▾Eco Mode
Zoning
Quiet Mode
Energy Efficiency & Performance
▾The ARTH90KHTA achieves an EER of 3.02 kW/kW in cooling and a COP of 3.73 kW/kW in heating under rated conditions. It carries a 2-star cooling and 2-star heating energy rating under average Australian climate zone conditions — reflecting the efficiency trade-offs inherent in very large-capacity systems.
The inverter compressor adjusts output to match actual load, avoiding the energy waste of fixed-speed cycling at full capacity. Three-phase operation results in a running current of 11.7 A at 400V. Maximum input power is 7.42 kW.
Installation Notes for the Fujitsu 22.4kW High Static Ducted Reverse Cycle Air Conditioner (Three Phase)
▾This system pairs the ARTH90KHTA indoor unit with the AOTH90KRTA outdoor unit.
Published installation details include maximum pipe length of 75m, maximum height difference of 30m, power supply: 415v_three_phase.
Pairs with AOTH90KRTA outdoor unit. THREE-PHASE 400V power supply required — site must have three-phase power available. Maximum pipe run 75m (factory precharged to 30m; field refrigerant charge required beyond 30m). Confirm three-phase supply availability during site assessment.
A site assessment should confirm unit placement, pipe route, drainage, electrical requirements and final room sizing before installation.
Warranty Information
▾This unit has a 5-year warranty, based on the warranty information recorded for this model.
5-year parts and labour residential warranty. Requires licensed installation and registration with Fujitsu General Australia.
Warranty coverage depends on correct installation, normal use, maintenance requirements and the manufacturer’s current warranty terms.
Frequently Asked Questions
▾What size home does the Fujitsu ARTH90KHTA suit?
The ARTH90KHTA is a 22.4kW high static ducted system estimated to suit homes from approximately 300 to 450 m2, depending on insulation, ceiling height, glazing, sun exposure and the number of zones. A licensed installer should assess your home before confirming suitability.
Is this a reverse cycle air conditioner?
Yes. The ARTH90KHTA provides both whole-home ducted cooling and heating for year-round comfort.
Does this unit require three-phase power?
Yes. The ARTH90KHTA pairs with the AOTH90KRTA three-phase outdoor unit and requires a 400V three-phase power supply. Homes without three-phase power will need a supply upgrade, which must be assessed by a licensed electrician.
What is the warranty on this unit?
The ARTH90KHTA includes a 5-year parts and labour warranty for residential installations with Fujitsu General Australia, subject to licensed installation and timely warranty registration.
What refrigerant does this unit use?
The ARTH90KHTA uses R32 refrigerant, which has approximately 67% lower global warming potential than the older R410A refrigerant.
Is WiFi or app control available?
WiFi control is available as an optional add-on via the UTY-ANY2 anywAiR module. It is not included as standard.