Name: Mitsubishi Heavy Industries SRK63/DXK21ZRA-WF1
Brand: Mitsubishi Heavy Industries
SKU: AAC8228

Climate zone

Electricity pricec/kWh

Energy rating (cooling): 4; Heating: 2.5
Annual electricity use: 2,507 kWh; 309 cooling + 2,198 heating
Estimated running cost: $827 / year; $69 / month · $8,273 over 10 years
Capacity: 6.3 kW cooling; 7.1 kW heating

8% less electricity than the median of 110 comparable 6 kW reverse cycle split system registrations (2,728 kWh a year) in the cold zone. Uses less than 80% of them.

Across all 3,611 air conditioner registrations sold in Australia, it uses less than 69% (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 cold zone (Canberra climate: Canberra, Hobart, Ballarat, alpine areas). All of New Zealand is the cold zone on the Zoned Energy Rating Label. Cost = kWh × 33c/kWh in NZD; change the price above to your tariff.

Mitsubishi Heavy Industries SRK63 running cost by climate zone

Climate zone	kWh / year	Per month	Per year	5 years	10 years
Cold zone (Canberra, Hobart, Ballarat, alpine areas)	2,507	$69	$827	$4,137	$8,273
Mixed zone (Sydney, Melbourne, Adelaide, Perth)	1,308	$36	$432	$2,158	$4,316
Hot zone (Brisbane, Darwin, Cairns, Townsville)	1,554	$43	$513	$2,564	$5,128

At 33c/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.

Heat pumps that use less electricity

Same configuration and type, cooling capacity within 12% of 6.3 kW, at least 3% lower annual kWh in the cold zone.

Model	Cooling	Heating	Stars	kWh / yr	Est. cost / yr	Uses less than
Panasonic U-60PZ4R5 / S-6071PU3E6 kW heating6 kW cooling2,078 kWh/yr	6 kW	6 kW	3.5	2,078	$686	99% of similar
Panasonic U-60PZ3R5 / S-6071PU3E6 kW heating6 kW cooling2,082 kWh/yr	6 kW	6 kW	3.5	2,082	$687	98% of similar
Daikin RZAV60CV1 / FCTA60AVMA7.1 kW heating6 kW cooling2,191 kWh/yr	6 kW	7.1 kW	0	2,191	$723	97% of similar
Midea MFEZ60VA-W/MFEZ60VA-N6.5 kW heating6 kW cooling2,417 kWh/yr	6 kW	6.5 kW	5	2,417	$798	93% of similar
Rinnai HONRPX60/HINRPX60M6.5 kW heating6 kW cooling2,417 kWh/yr	6 kW	6.5 kW	5	2,417	$798	93% of similar

Heat pumps similar to the Mitsubishi Heavy Industries SRK63

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 cooling3,494 kWh/yr	6.3 kW	7.3 kW	3.5	3,494	$1,153	0% of similar
Gree GWH21AGEXF-K6DNA1A/O / GWH21AGEXF-K6DNA1A/I7.4 kW heating6.3 kW cooling2,782 kWh/yr	6.3 kW	7.4 kW	3.5	2,782	$918	36% of similar
Gree GWH21AGEXF-K6DNA1A/O / GWH21AGEXF-K6DNA2A/I7.4 kW heating6.3 kW cooling2,782 kWh/yr	6.3 kW	7.4 kW	3.5	2,782	$918	36% of similar
Fujitsu AOTG22LVCC/ASTG22LVCC7.2 kW heating6.3 kW cooling3,233 kWh/yr	6.3 kW	7.2 kW	3.5	3,233	$1,067	2% of similar
Solar Acdc DGWA1-ACDC-24KR27 kW heating6.4 kW cooling2,743 kWh/yr	6.4 kW	7 kW	3	2,743	$905	46% of similar
Solar Acdc DGWA5-ACDCBLW-24KR27 kW heating6.5 kW cooling2,612 kWh/yr	6.5 kW	7 kW	5	2,612	$862	99% 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 DXC21ZRA-WF/DXK63ZRA-WF7.1 kW heating6.3 kW cooling2,518 kWh/yr	6.3 kW	7.1 kW	3.5	2,518	$831	77% of similar
Mitsubishi Heavy Industries SRK63/DXK21ZRA-WF7.1 kW heating6.3 kW cooling2,518 kWh/yr	6.3 kW	7.1 kW	3.5	2,518	$831	77% of similar

Compare SRK63/DXK21ZRA-WF1 with another model

Mitsubishi Heavy Industries SRK63 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 SRK63 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	–	–	640	702	7.12	4.50
Coldresidential	residential	4.0	2.5	309	2,198	5.59	4.23
Mixedcommercial	commercial	–	–	829	365	6.50	4.96
Mixedresidential	residential	3.5	3.0	489	819	5.34	4.76
Hotcommercial	commercial	–	–	1,882	78	6.26	5.26
Hotresidential	residential	4.0	3.5	1,432	122	5.73	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: 490 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

Other model numbers on registration AAC8228

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

New Zealand E3 registration details

Registration number: AAC8228
GEMS registration id: 161031
Status: approved, available (self-reported)
Registration expires: 13 May 2029
Registered for sale in: Australia, Fiji, New Zealand
Family: SRK63/DXK21ZRA-WF1
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: E3 programme registration data (EECA, New Zealand) (trans-Tasman E3 registration data published by DCCEEW on 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.