New Zealand · costs in NZD

Reverse cycle split system air conditioner, wall hung

Mitsubishi Heavy Industries SRK63/DXK21ZRA-WF Heat Pump

Mitsubishi Heavy Industries SRK63/DXK21ZRA-WF is a 6.3 kW reverse cycle split system heat pump registered for sale in New Zealand under the trans-Tasman E3 energy rating scheme (registration AAC7759).

c/kWh
Energy rating (cooling)
3.5
Heating: 2.5
Annual electricity use
2,518 kWh
320 cooling + 2,198 heating
Estimated running cost
$831 / year
$69 / month · $8,309 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 77% of them.

Across all 3,611 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 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 zonekWh / yearPer year10 years
Cold zone 2,518$831$8,309
Mixed zone 1,324$437$4,369
Hot zone 1,603$529$5,290

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.

ModelStarsEst. cost / yrCompare
Panasonic U-60PZ4R5 / S-6071PU3E6 kW heating6 kW cooling2,078 kWh/yr3.5$686
Panasonic U-60PZ3R5 / S-6071PU3E6 kW heating6 kW cooling2,082 kWh/yr3.5$687
Daikin RZAV60CV1 / FCTA60AVMA7.1 kW heating6 kW cooling2,191 kWh/yr0$723
Midea MFEZ60VA-W/MFEZ60VA-N6.5 kW heating6 kW cooling2,417 kWh/yr5$798
Rinnai HONRPX60/HINRPX60M6.5 kW heating6 kW cooling2,417 kWh/yr5$798

Heat pumps similar to the Mitsubishi Heavy Industries SRK63

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

ModelStarsEst. cost / yrCompare
Fujitsu AOTG22LVCC/ASTG22LVCC7.2 kW heating6.3 kW cooling3,233 kWh/yr3.5$1,067
LG WS24TWU / WS24TWN7.3 kW heating6.3 kW cooling3,494 kWh/yr3.5$1,153
Gree GWH21AGEXF-K6DNA1A/O / GWH21AGEXF-K6DNA2A/I7.4 kW heating6.3 kW cooling2,782 kWh/yr3.5$918
Gree GWH21AGEXF-K6DNA1A/O / GWH21AGEXF-K6DNA1A/I7.4 kW heating6.3 kW cooling2,782 kWh/yr3.5$918
Solar Acdc DGWA1-ACDC-24KR27 kW heating6.4 kW cooling2,743 kWh/yr3$905
Solar Acdc DGWA5-ACDCBLW-24KR27 kW heating6.5 kW cooling2,612 kWh/yr5$862

Other Mitsubishi Heavy Industries models of similar capacity

ModelStarsEst. cost / yrCompare
Mitsubishi Heavy Industries DXC21ZRA-W / DXK21ZRA-WF17.1 kW heating6.3 kW cooling2,507 kWh/yr4$827
Mitsubishi Heavy Industries SRK63/DXK21ZRA-WF17.1 kW heating6.3 kW cooling2,507 kWh/yr4$827

Compare SRK63/DXK21ZRA-WF 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.

ZoneCooling starsHeating starsCooling kWhHeating kWh
Coldcommercial––693702
Coldresidential3.52.53202,198
Mixedcommercial––880365
Mixedresidential3.53.0505819
Hotcommercial––1,97578
Hotresidential4.03.51,481122
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.

ModelRegistrationStarskWh / yr
SRK63/DXK21ZRA-WF1AAC822842,507

Other model numbers on registration AAC7759

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

New Zealand E3 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: 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.