c/kWh
Energy rating (cooling)
2
Heating: 2.5
Annual electricity use
12,411 kWh
4,907 cooling + 7,504 heating
Estimated running cost
$3,972 / year
$331 / month Β· $39,715 over 10 years
Capacity
50.4 kW cooling
56 kW heating

10% less electricity than the median of 42 comparable 50 kW reverse cycle multi-split / vrf registrations (13,803 kWh a year) in the mixed zone. Uses less than 60% of them.

Across all 3,680 air conditioner registrations sold in Australia, it uses less than 6% (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 Γ— 32c/kWh in AUD; change the price above to your tariff.

Hitachi RAS-180RNCBLW running cost by climate zone

Climate zonekWh / yearPer year10 years
Cold zone 23,594$7,550$75,501
Mixed zone 12,411$3,972$39,715
Hot zone 14,009$4,483$44,829

At 32c/kWh. Formula: cost = annual kWh Γ— 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 50.4 kW, at least 3% lower annual kWh in the mixed zone.

ModelStarsEst. cost / yrCompare
Panasonic U-16MF3R750 kW heating45 kW cooling4,064 kWh/yr2.5$1,300
Toshiba MMY-MUP16S1HT8P-A50 kW heating45 kW cooling4,443 kWh/yr2.5$1,422
Toshiba MMY-MUP20S1HT8P-A63 kW heating56 kW cooling5,421 kWh/yr2.5$1,735
Mitsubishi Electric PUHY-M400YXM series45 kW heating45 kW cooling5,655 kWh/yr1.5$1,810
Mitsubishi Electric PUHY-M400YXM-A-BS45 kW heating45 kW cooling5,655 kWh/yr1.5$1,810

Air conditioners similar to the Hitachi RAS-180RNCBLW

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

ModelStarsEst. cost / yrCompare
Toshiba MMY-MUP1801FT8P-A50.4 kW heating50.4 kW cooling14,382 kWh/yr3$4,602
Toshiba MMY-MUP18S1HT8P-A54 kW heating50.4 kW cooling5,465 kWh/yr2$1,749
Mitsubishi Electric PUHY-M450YXM series50 kW heating50 kW cooling6,542 kWh/yr1.5$2,093
Mitsubishi Heavy Industries FDC500KXZE256 kW heating50 kW cooling14,016 kWh/yr2.5$4,485
Mitsubishi Electric PUHY-M450YXM-A-BS50 kW heating50 kW cooling6,542 kWh/yr1.5$2,093
Mitsubishi Heavy Industries FDC500KXZRE250 kW heating50 kW cooling14,484 kWh/yr2$4,635
Daikin REYQ18TAY156 kW heating50 kW cooling17,011 kWh/yr2$5,444
Daikin REYA18AYM56 kW heating50 kW cooling13,077 kWh/yr2.5$4,185

Compare RAS-180RNCBLW with another model

Hitachi RAS-180RNCBLW specifications

Type
Reverse cycle
Configuration
Multi-split / VRF
Air distribution
Ducted or non-ducted
Indoor unit
–
Rated cooling capacity (35 Β°C)
50.40 kW
Cooling power input
11.66 kW
Rated heating capacity (7 Β°C)
56.00 kW
Heating power input
12.46 kW
EER, full load (tested)
4.10
COP, full load (tested)
4.26
Rated AEER
4.00
Rated ACOP
4.18
Standby power (PIA)
280.0 W
Compressor
Variable speed, Inverter
Refrigerant
R410A
Power supply
Three phase
Indoor sound power
–
Outdoor sound power
–
Demand response (AS/NZS 4755)
Yes
Country of manufacture
China

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

Hitachi RAS-180RNCBLW 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––6,2936,609
Coldresidential2.02.03,33720,257
Mixedcommercial––7,7153,549
Mixedresidential2.02.54,9077,504
Hotcommercial––16,1631,143
Hotresidential3.53.512,3951,614
Part-load test points (16 values)
h__h2_ext_cap_power_rated
16650 W
c__t1_half_cap_power_rated
4430 W
c__t1_have_min_cap_results
No
h__h1_half_cap_power_rated
5020 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
44630 W
h__h1_half_cap_heat_cap_rated
28000 W
h__h2_is_capable_extended_load
Yes
c__low_temp_have_min_cap_results
No
c__t1_half_cap_cooling_cap_rated
25200 W
c__low_temp_have_half_cap_results
No

Australian GEMS registration details

Registration number
AAC7321
GEMS registration id
151031
Status
approved, available (self-reported)
Registration expires
1 March 2028
Registered for sale in
Australia, New Zealand
Family
–
Regulatory standard
[SEER Multi-Split <=65kW] GEMS (Air Conditioners up to 65kW) Determination 2019
Test standard
AS/NZS 3823.1.4:2012
MEPS
2019
Product class
Class 21

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: temperzone.com. How the derived figures are calculated.