Name: Mitsubishi Heavy Industries DXC21ZRA-WF/DXK63ZRA-WF
Brand: Mitsubishi Heavy Industries
SKU: AAC7759

Climate zone

Electricity pricec/kWh

Energy rating (cooling): 3.5; Heating: 3
Annual electricity use: 1,324 kWh; 505 cooling + 819 heating
Estimated running cost: $424 / year; $35 / month · $4,237 over 10 years
Capacity: 6.3 kW cooling; 7.1 kW heating

1% less electricity than the median of 104 comparable 6 kW reverse cycle split system registrations (1,340 kWh a year) in the mixed zone. Uses less than 59% of them.

Across all 3,680 air conditioner registrations sold in Australia, it uses less than 68% (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 DXC21ZRA-WF running cost by climate zone

Climate zone	kWh / year	Per month	Per year	5 years	10 years
Cold zone (Canberra, Hobart, Ballarat, alpine areas)	2,518	$67	$806	$4,029	$8,058
Mixed zone (Sydney, Melbourne, Adelaide, Perth)	1,324	$35	$424	$2,118	$4,237
Hot zone (Brisbane, Darwin, Cairns, Townsville)	1,603	$43	$513	$2,565	$5,130

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 6.3 kW, at least 3% lower annual kWh in the mixed zone.

Model	Cooling	Heating	Stars	kWh / yr	Est. cost / yr	Uses less than
Panasonic U-60PZ4R5 / S-6071PU3E6 kW heating6 kW cooling1,092 kWh/yr	6 kW	6 kW	3.5	1,092	$349	99% of similar
Panasonic U-60PZ3R5 / S-6071PU3E6 kW heating6 kW cooling1,101 kWh/yr	6 kW	6 kW	3.5	1,101	$352	98% of similar
Rinnai HONRPX60/HINRPX60M6.5 kW heating6 kW cooling1,177 kWh/yr	6 kW	6.5 kW	4.5	1,177	$377	96% of similar
Midea MFEZ60VA-W/MFEZ60VA-N6.5 kW heating6 kW cooling1,177 kWh/yr	6 kW	6.5 kW	4.5	1,177	$377	96% of similar
Actron Air WRC-060DS / WRE-060DS6.6 kW heating6 kW cooling1,203 kWh/yr	6 kW	6.6 kW	4.5	1,203	$385	94% of similar

Air conditioners similar to the Mitsubishi Heavy Industries DXC21ZRA-WF

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

Model	Cooling	Heating	Stars	kWh / yr	Est. cost / yr	Uses less than
LG WS24TWU / WS24TWN7.3 kW heating6.3 kW cooling1,655 kWh/yr	6.3 kW	7.3 kW	3.5	1,655	$530	0% of similar
Gree GWH21AGEXF-K6DNA1A/O / GWH21AGEXF-K6DNA2A/I7.4 kW heating6.3 kW cooling1,405 kWh/yr	6.3 kW	7.4 kW	3.5	1,405	$450	35% of similar
Gree GWH21AGEXF-K6DNA1A/O / GWH21QEXF-K6DNC8A/I7.4 kW heating6.3 kW cooling1,405 kWh/yr	6.3 kW	7.4 kW	3.5	1,405	$450	35% of similar
Fujitsu AOTG22LVCC/ASTG22LVCC7.2 kW heating6.3 kW cooling1,538 kWh/yr	6.3 kW	7.2 kW	3	1,538	$492	10% of similar
Solar Acdc DGWA1-ACDC-24KR27 kW heating6.4 kW cooling1,439 kWh/yr	6.4 kW	7 kW	3	1,439	$460	24% of similar
Comfee CASG-XG60/CASN-XG606.4 kW heating6.1 kW cooling1,264 kWh/yr	6.1 kW	6.4 kW	4	1,264	$404	86% of similar

Other Mitsubishi Heavy Industries models of similar capacity

Model	Cooling	Heating	Stars	kWh / yr	Est. cost / yr	Uses less than	Compare
Mitsubishi Heavy Industries SRK63/DXK21ZRA-WF17.1 kW heating6.3 kW cooling1,308 kWh/yr	6.3 kW	7.1 kW	3.5	1,308	$419	68% of similar
Mitsubishi Heavy Industries SRC63ZRA-W / SRK63ZRA-WF17.1 kW heating6.3 kW cooling1,308 kWh/yr	6.3 kW	7.1 kW	3.5	1,308	$419	68% of similar

Compare DXC21ZRA-WF/DXK63ZRA-WF with another model

Mitsubishi Heavy Industries DXC21ZRA-WF specifications

Type: Reverse cycle
Configuration: Split system
Air distribution: Non-ducted
Indoor unit: Wall hung
Rated cooling capacity (35 °C): 6.30 kW
Cooling power input: 1.58 kW
Rated heating capacity (7 °C): 7.10 kW
Heating power input: 1.60 kW
EER, full load (tested): 3.91
COP, full load (tested): 4.36
Rated AEER: 3.96
Rated ACOP: 4.41
Standby power (PIA): 3.3 W
Compressor: Variable speed, Inverter
Refrigerant: R32
Power supply: Single phase
Indoor sound power: 57 dB(A)
Outdoor sound power: 64 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 DXC21ZRA-WF zoned energy rating figures

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

Zone	Profile	Cooling stars	Heating stars	Cooling kWh	Heating kWh	TCSPF	HSPF
Coldcommercial	commercial	–	–	693	702	6.59	4.50
Coldresidential	residential	3.5	2.5	320	2,198	5.40	4.23
Mixedcommercial	commercial	–	–	880	365	6.12	4.96
Mixedresidential	residential	3.5	3.0	505	819	5.18	4.76
Hotcommercial	commercial	–	–	1,975	78	5.97	5.26
Hotresidential	residential	4.0	3.5	1,481	122	5.55	5.26

Part-load test points (20 values)

h__h2_ext_cap_power_rated: 2290 W
c__t1_half_cap_power_rated: 565 W
c__t1_have_min_cap_results: No
h__h1_half_cap_power_rated: 620 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: 7000 W
h__h1_half_cap_heat_cap_rated: 3550 W
h__h2_is_capable_extended_load: Yes
c__low_temp_full_cap_power_rated: 1444.1200000000001 W
c__low_temp_half_cap_power_rated: 510 W
c__low_temp_have_min_cap_results: No
c__t1_half_cap_cooling_cap_rated: 3150 W
c__low_temp_have_half_cap_results: Yes
c__low_temp_full_cap_cooling_cap_rated: 6785.099999999999 W
c__low_temp_half_cap_cooling_cap_rated: 3390 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.

Model	Registration	Stars	kWh / yr	Capacity	Registration expires
SRK63/DXK21ZRA-WF1	AAC8228	3.5	1,308	6.3 kW	13 May 2029

Other model numbers on registration AAC7759

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

Australian GEMS registration details

Registration number: AAC7759
GEMS registration id: 156522
Status: approved, available (self-reported)
Registration expires: 3 September 2028
Registered for sale in: Australia, Fiji, New Zealand
Family: SRK63/DXK21ZRA-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.