Australia · costs in AUD

Reverse cycle split system air conditioner, wall hung

Mitsubishi Heavy Industries DXC18ZSA-W/DXK18ZSA-WF Air Conditioner

Mitsubishi Heavy Industries DXC18ZSA-W/DXK18ZSA-WF is a 5 kW reverse cycle split system air conditioner registered under Australia’s Energy Rating (GEMS) scheme (registration AAC7733).

c/kWh
Energy rating (cooling)
3
Heating: 2.5
Annual electricity use
1,168 kWh
444 cooling + 724 heating
Estimated running cost
$374 / year
$31 / month · $3,738 over 10 years
Capacity
5 kW cooling
5.8 kW heating

7% more electricity than the median of 240 comparable 5 kW reverse cycle split system registrations (1,093 kWh a year) in the mixed zone. Uses less than 28% of them.

Across all 3,680 air conditioner registrations sold in Australia, it uses less than 72% (this compares very different sizes, so the cohort figure above is the useful one).

coolingheatingClick a zone to use it across the page.

Annual kWh is the government label figure for a residential user in the mixed zone (Richmond NSW climate: Sydney, Melbourne, Adelaide, Perth). Mixed climate zone shown by default (Sydney, Melbourne, Adelaide, Perth); switch to cold or hot. Cost = kWh × 32c/kWh in AUD; change the price above to your tariff.

Mitsubishi Heavy Industries DXC18ZSA-W running cost by climate zone

Climate zonekWh / yearPer year10 years
Cold zone 2,265$725$7,248
Mixed zone 1,168$374$3,738
Hot zone 1,405$450$4,496

At 32c/kWh. Formula: cost = annual kWh × price. The kWh figure is the label’s residential estimate for that zone; commercial-profile figures are in the specifications.

Air conditioners that use less electricity

Same configuration and type, cooling capacity within 12% of 5 kW, at least 3% lower annual kWh in the mixed zone.

ModelStarsEst. cost / yrCompare
Daikin RXM46AVMA / FTXM46AVMA4.7 kW heating4.6 kW cooling839 kWh/yr4$268
Daikin RXM46WVMA / FTXM46WVMA4.7 kW heating4.6 kW cooling847 kWh/yr4$271
Actron Air WRC-050CS / WRE-050CS5 kW heating5 kW cooling942 kWh/yr4.5$301
Panasonic CU-HZ50DKR / CS-HZ50DKR6 kW heating5 kW cooling949 kWh/yr5$304
Gree GWH15AGDXD-K6DNA1A/O / GWH15AGDXD-K6DNA1A/I4.7 kW heating4.6 kW cooling949 kWh/yr4$304

Air conditioners similar to the Mitsubishi Heavy Industries DXC18ZSA-W

Technically comparable registrations: same configuration and type, capacity within 12%.

ModelStarsEst. cost / yrCompare
Actron Air WRC-050CS / WRE-050CS5 kW heating5 kW cooling942 kWh/yr4.5$301
Midea MFEP51VA-W/MFEP51VA-N5.3 kW heating5 kW cooling1,008 kWh/yr4$323
Daikin RXM50AVMA / FTXM50AVMA6 kW heating5 kW cooling937 kWh/yr5$300
Daikin RXM50WVMA / FTXM50WVMA6 kW heating5 kW cooling942 kWh/yr5$301
Panasonic CU-HZ50DKR / CS-HZ50DKR6 kW heating5 kW cooling949 kWh/yr5$304
Rinnai HONRPX50/HINRPX50M6 kW heating5 kW cooling997 kWh/yr5$319
Haier 1U50PFHRA / AS50PFHRA5.3 kW heating5 kW cooling990 kWh/yr4$317
Midea MFEZ50VA-W/MFEZ50VA-N6 kW heating5 kW cooling997 kWh/yr5$319

Compare DXC18ZSA-W/DXK18ZSA-WF with another model

Mitsubishi Heavy Industries DXC18ZSA-W specifications

Type
Reverse cycle
Configuration
Split system
Air distribution
Non-ducted
Indoor unit
Wall hung
Rated cooling capacity (35 °C)
5.00 kW
Cooling power input
1.39 kW
Rated heating capacity (7 °C)
5.80 kW
Heating power input
1.49 kW
EER, full load (tested)
3.63
COP, full load (tested)
3.90
Rated AEER
3.57
Rated ACOP
3.86
Standby power (PIA)
3.5 W
Compressor
Variable speed, Inverter
Refrigerant
R32
Power supply
Single phase
Indoor sound power
58 dB(A)
Outdoor sound power
61 dB(A)
Demand response (AS/NZS 4755)
Yes
Country of manufacture
Thailand

Dimensions are not collected for registrations under the 2019 Determination, so they are shown only where the source has them.

Mitsubishi Heavy Industries DXC18ZSA-W zoned energy rating figures

As published for each climate zone. Residential figures drive the star ratings; commercial figures assume a commercial usage pattern.

ZoneCooling starsHeating starsCooling kWhHeating kWh
Coldcommercial––613622
Coldresidential3.02.02821,983
Mixedcommercial––775319
Mixedresidential3.02.5444724
Hotcommercial––1,73668
Hotresidential3.53.51,299106
Part-load test points (20 values)
h__h2_ext_cap_power_rated
1780 W
c__t1_half_cap_power_rated
485 W
c__t1_have_min_cap_results
No
h__h1_half_cap_power_rated
530 W
h__h1_have_min_cap_results
No
h__h3_have_ext_cap_results
No
h__h2_have_full_cap_results
No
h__h2_have_half_cap_results
No
h__h3_have_full_cap_results
No
h__h3_have_half_cap_results
No
h__h2_ext_cap_heat_cap_rated
5200 W
h__h1_half_cap_heat_cap_rated
2900 W
h__h2_is_capable_extended_load
Yes
c__low_temp_full_cap_power_rated
1270.46 W
c__low_temp_half_cap_power_rated
443.29 W
c__low_temp_have_min_cap_results
No
c__t1_half_cap_cooling_cap_rated
2500 W
c__low_temp_have_half_cap_results
No
c__low_temp_full_cap_cooling_cap_rated
5385 W
c__low_temp_half_cap_cooling_cap_rated
2692.5 W

1 model numbers on 1 other registration. Variants registered separately can carry different star ratings and energy figures; check the registration number on the label.

ModelRegistrationStarskWh / yr
SRK50/DXK18ZSA-WF1AAC823631,151

Other model numbers on registration AAC7733

Registered together and sharing the same test results. Usually variants of the same unit.

Australian GEMS registration details

Registration number
AAC7733
GEMS registration id
156267
Status
approved, available (self-reported)
Registration expires
27 August 2028
Registered for sale in
Australia, Fiji, New Zealand
Family
SRK50/DXK18ZSA-WF
Regulatory standard
[SEER Non Multi-Split <=65kW] GEMS (Air Conditioners up to 65kW) Determination 2019
Test standard
AS/NZS 3823.1.1:2012
MEPS
2019
Product class
Class 9

Source: Australian Government Energy Rating (GEMS) registration data, DCCEEW via data.gov.au (CC BY 3.0 AU). Dataset published 25 September 2026; last checked 26 September 2026. Manufacturer: mhiaa.com.au. How the derived figures are calculated.