AUX 5.2 kW split system
$2,100–$3,300
estimated installed price
Cooling
5.2 kW
4.5 stars
Heating
5.2 kW
2.5 stars
Indoor noise
56.6
dB(A) sound power, quieter than 89% of its size
Running cost
$325
a year, average zone, at 33c/kWh
Short answer
The AUX 5.2 kW split system (ASW-H52A4/CAR3DI) is a 5.2 kW reverse cycle wall split rated 4.5 stars for cooling and 2.5 stars for heating in the average climate zone. Installed, expect $2,100 to $3,300; the label's figures put running costs near $325 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
- AUX
- Model numbers
- ASW-H52A4/CAR3DI
- Type
- Wall split, reverse cycle (heats and cools)
- Cooling capacity
- 5.2 kW
- Cooling power input
- 1.25 kW
- Heating capacity
- 5.2 kW
- Heating power input
- 1.22 kW
- Annual efficiency, cooling (AEER)
- 4.12
- Annual efficiency, heating (ACOP)
- 4.22
- Indoor sound power
- 56.6 dB(A)
- Outdoor sound power
- 62.3 dB(A)
- Refrigerant
- R32
- Power supply
- Single-phase
- Demand response capable
- Yes
- Country of manufacture
- China
- Energy Rating registration
- AAC9971
- Registration valid until
- 2031-03-23
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 | Heating stars | Energy a year | Cost a year |
|---|---|---|---|---|
| HotBrisbane, Darwin | 5 stars | 3.5 stars | 1,071 kWh 977 cooling, 94 heating | $353 |
| AverageSydney, Adelaide, Perth | 4.5 stars | 2.5 stars | 983 kWh 341 cooling, 642 heating | $325 |
| ColdCanberra, Hobart, Melbourne | 5 stars | 2 stars | 2,056 kWh 216 cooling, 1840 heating | $678 |
How it compares with other 5.0 kW units
- Cooling stars (average zone): 4.5 against a median of 3.5 across 307 5.0 kW wall split units, better than 90% of them.
- Indoor sound power: 56.6 dB(A) against a median of 60 dB(A), quieter than 89%.
- 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.
Alternatives at 5.0 kW from other brands
Daikin Alira X 5 kW split system
RXM50AVMA / FTXM50AVMA
5 stars cooling · 61 dB(A)
Daikin Alira X 5 kW split system
RXM50WVMA / FTXM50WVMA
5 stars cooling · 61 dB(A)
Panasonic HZ Series 5 kW split system
CU-HZ50DKR / CS-HZ50DKR
5 stars cooling · 61 dB(A)
ActronAir Serene 5 kW split system
WRC-050DS / WRE-050DS
5 stars cooling · 61.5 dB(A)
Midea EOS 5 kW split system
MFEP50VB-W/MFEP50VB-N
5 stars cooling · 61.5 dB(A)
Hitachi airHome 600 5 kW split system
RAC-VJ50PHAT/RAK-VJ50PHAT
5 stars cooling · 62 dB(A)
FAQ
AUX ASW-H52A4/CAR3DI: common questions
How much does the AUX 5.2 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 AUX 5.2 kW split system cost to run?
Using the energy label's annual figures at 33c/kWh: about $353 a year in a hot zone, $325 in an average zone and $678 in a cold zone. The label assumes typical use; yours will differ with hours, set temperature and insulation.
Where is the AUX ASW-H52A4/CAR3DI made?
The Energy Rating register lists the country of manufacture as China.
Is the AUX 5.2 kW split system quiet?
Its registered indoor sound power is 56.6 dB(A), against a median of 60 dB(A) for 5.0 kW wall split units, so it's quieter than about 89% of them. Brochures quote a lower sound pressure figure on the lowest fan speed; the register measures every model the same way.
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