Fujitsu Comfort Cooling 5 kW split system
$2,100–$3,300
estimated installed price
Cooling
5 kW
3.5 stars
Heating
None
Cooling only
Indoor noise
60
dB(A) sound power, quieter than 46% of its size
Running cost
$135
a year, average zone, at 33c/kWh
Short answer
The Fujitsu Comfort Cooling 5 kW split system (AOTH18CNTA/ASTH18CNTA) is a 5 kW cooling-only wall split rated 3.5 stars for cooling in the average climate zone. Installed, expect $2,100 to $3,300; the label's figures put running costs near $135 a year in an average-zone home.
Prices are estimates, not quotes (how we estimate them). Rebate rules checked September 2026.
Compare 3 quotes for my houseFull specifications
- Brand
- Fujitsu
- Series
- Fujitsu Comfort Cooling
- Model numbers
- AOTH18CNTA/ASTH18CNTA
- Type
- Wall split, cooling only
- Cooling capacity
- 5 kW
- Cooling power input
- 1.44 kW
- Annual efficiency, cooling (AEER)
- 3.46
- Indoor sound power
- 60 dB(A)
- Outdoor sound power
- 61 dB(A)
- Refrigerant
- R32
- Power supply
- Single-phase
- Demand response capable
- Yes
- Country of manufacture
- Thailand
- Energy Rating registration
- AAC7379
- Registration valid until
- 2028-03-27
Star ratings and running cost by climate
The Zoned Energy Rating Label rates each unit for three climates. Annual energy is the label's estimate for typical use in that zone; the cost applies 33c/kWh, around the 2026–27 default electricity offer. Use the running cost calculator for your own hours and tariff.
| Climate zone | Cooling stars | Energy a year | Cost a year |
|---|---|---|---|
| HotBrisbane, Darwin | 3.5 stars | 1,212 kWh | $400 |
| AverageSydney, Adelaide, Perth | 3.5 stars | 410 kWh | $135 |
| ColdCanberra, Hobart, Melbourne | 3.5 stars | 254 kWh | $84 |
How it compares with other 5.0 kW units
- Cooling stars (average zone): 3.5 against a median of 3.5 across 35 5.0 kW wall split units, better than 29% of them.
- Indoor sound power: 60 dB(A) against a median of 60 dB(A), quieter than 46%.
- Estimated installed price for this size: $2,100 to $3,300. Brand and install difficulty move it within that band.
See the quietest and most efficient rankings.
Other sizes in the Fujitsu Comfort Cooling range
Alternatives at 5.0 kW from other brands
Daikin 5 kW split system
RKM50WVMA / FTKM50WVMA
5 stars cooling · 61 dB(A)
Hitachi airHome 500 Cooling Only 5 kW split system
RAC-DJ50PCAT/RAK-DJ50PCAT
4.5 stars cooling · 60 dB(A)
Daikin 5 kW split system
RKM50W2VMA / FTKM50W2VMA
4.5 stars cooling · 61 dB(A)
Toshiba Seiya Classic 5.3 kW split system
RAS-18E2ACVG-A/RAS-18E2KCVG-A
4 stars cooling · 58 dB(A)
Daikin 4.6 kW split system
RKM46W2VMA / FTKM46W2VMA
4 stars cooling · 59 dB(A)
Daikin 4.6 kW split system
RKM46WVMA / FTKM46WVMA
4 stars cooling · 59 dB(A)
FAQ
Fujitsu AOTH18CNTA/ASTH18CNTA: common questions
How much does the Fujitsu Comfort Cooling 5 kW split system cost installed?
Typically $2,100 to $3,300 supplied and installed in 2026 for a standard job at this size. Longer pipe runs, a new circuit, a second storey or removing an old unit add to it. Get up to three local quotes for your actual install.
How much does the Fujitsu Comfort Cooling 5 kW split system cost to run?
Using the energy label's annual figures at 33c/kWh: about $400 a year in a hot zone, $135 in an average zone and $84 in a cold zone. The label assumes typical use; yours will differ with hours, set temperature and insulation.
Where is the Fujitsu AOTH18CNTA/ASTH18CNTA made?
The Energy Rating register lists the country of manufacture as Thailand.
Is the Fujitsu Comfort Cooling 5 kW split system quiet?
Its registered indoor sound power is 60 dB(A), against a median of 60 dB(A) for 5.0 kW wall split units, so it's quieter than about 46% of them. Brochures quote a lower sound pressure figure on the lowest fan speed; the register measures every model the same way.
Sources
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