Australia · costs in AUD
Reverse cycle multi-split / vrf air conditioner
Hitachi RAS-100HNCELW Air Conditioner
Hitachi RAS-100HNCELW is a 28 kW reverse cycle multi-split / vrf air conditioner registered under Australia’s Energy Rating (GEMS) scheme (registration AAC9896).
- Energy rating (cooling)
- 2.5
- Heating: 2.5
- Annual electricity use
- 6,772 kWh
- 2,662 cooling + 4,110 heating
- Estimated running cost
- $2,167 / year
- $181 / month · $21,670 over 10 years
- Capacity
- 28 kW cooling
- 31.5 kW heating
About the same electricity as the median of 32 comparable 25 kW reverse cycle multi-split / vrf registrations (6,791 kWh a year) in the mixed zone. Uses less than 50% of them.
Across all 3,680 air conditioner registrations sold in Australia, it uses less than 12% (this compares very different sizes, so the cohort figure above is the useful one).
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.
Hitachi RAS-100HNCELW running cost by climate zone
| Climate zone | kWh / year | Per year | 10 years |
|---|---|---|---|
| Cold zone | 13,114 | $4,196 | $41,965 |
| Mixed zone | 6,772 | $2,167 | $21,670 |
| Hot zone | 8,122 | $2,599 | $25,990 |
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 28 kW, at least 3% lower annual kWh in the mixed zone.
| Model | Stars | Est. cost / yr | Compare |
|---|---|---|---|
| Panasonic U-10MF3R731.5 kW heating28 kW cooling5,199 kWh/yr | 4 | $1,664 | |
| Panasonic U-10LZ2E828 kW heating28 kW cooling5,879 kWh/yr | 2.5 | $1,881 | |
| Daikin REYA10AYM31.5 kW heating28 kW cooling6,052 kWh/yr | 3 | $1,937 | |
| Toshiba MMY-MUP1001FT8P-A28 kW heating28 kW cooling6,104 kWh/yr | 4 | $1,953 | |
| Toshiba MMY-MUP10S1HT8P-A31.5 kW heating28 kW cooling6,332 kWh/yr | 3 | $2,026 |
Air conditioners similar to the Hitachi RAS-100HNCELW
Technically comparable registrations: same configuration and type, capacity within 12%.
| Model | Stars | Est. cost / yr | Compare |
|---|---|---|---|
| Daikin REYA10AYM31.5 kW heating28 kW cooling6,052 kWh/yr | 3 | $1,937 | |
| Toshiba MMY-MUP10S1HT8P-A31.5 kW heating28 kW cooling6,332 kWh/yr | 3 | $2,026 | |
| Panasonic U-10MF3R731.5 kW heating28 kW cooling5,199 kWh/yr | 4 | $1,664 | |
| Toshiba MMY-MUP1001FT8P-A28 kW heating28 kW cooling6,104 kWh/yr | 4 | $1,953 | |
| Panasonic U-10LZ2E828 kW heating28 kW cooling5,879 kWh/yr | 2.5 | $1,881 | |
| Mitsubishi Electric PUMY-P250YBM2-A-BS31.5 kW heating28 kW cooling6,606 kWh/yr | 2.5 | $2,114 | |
| Mitsubishi Heavy Industries FDC280KXZPE128 kW heating28 kW cooling6,553 kWh/yr | 2.5 | $2,097 | |
| Mitsubishi Heavy Industries FDC280KXZME128 kW heating28 kW cooling6,561 kWh/yr | 2.5 | $2,100 |
Compare RAS-100HNCELW with another model
Hitachi RAS-100HNCELW specifications
- Type
- Reverse cycle
- Configuration
- Multi-split / VRF
- Air distribution
- Ducted or non-ducted
- Indoor unit
- –
- Rated cooling capacity (35 °C)
- 28.00 kW
- Cooling power input
- 8.13 kW
- Rated heating capacity (7 °C)
- 31.50 kW
- Heating power input
- 7.70 kW
- EER, full load (tested)
- 3.28
- COP, full load (tested)
- 3.95
- Rated AEER
- 3.35
- Rated ACOP
- 3.98
- Standby power (PIA)
- 65.0 W
- Compressor
- Variable speed, Inverter
- Refrigerant
- R410A
- Power supply
- Three phase
- Indoor sound power
- –
- Outdoor sound power
- 80 dB(A)
- Demand response (AS/NZS 4755)
- Yes
- Country of manufacture
- China, Japan
Dimensions are not collected for registrations under the 2019 Determination, so they are shown only where the source has them.
Hitachi RAS-100HNCELW 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 |
|---|---|---|---|---|---|
| Coldcommercial | commercial | – | – | 3,504 | 3,613 |
| Coldresidential | residential | 2.5 | 2.0 | 1,712 | 11,402 |
| Mixedcommercial | commercial | – | – | 4,419 | 1,857 |
| Mixedresidential | residential | 2.5 | 2.5 | 2,662 | 4,110 |
| Hotcommercial | commercial | – | – | 9,791 | 467 |
| Hotresidential | residential | 3.0 | 3.0 | 7,425 | 697 |
Part-load test points (16 values)
- h__h2_ext_cap_power_rated
- 12012 W
- c__t1_half_cap_power_rated
- 2627 W
- c__t1_have_min_cap_results
- No
- h__h1_half_cap_power_rated
- 2927 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
- 28125 W
- h__h1_half_cap_heat_cap_rated
- 15750 W
- h__h2_is_capable_extended_load
- Yes
- c__low_temp_have_min_cap_results
- No
- c__t1_half_cap_cooling_cap_rated
- 14000 W
- c__low_temp_have_half_cap_results
- No
Australian GEMS registration details
- Registration number
- AAC9896
- GEMS registration id
- 177195
- Status
- approved, available (self-reported)
- Registration expires
- 18 March 2031
- 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 20
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.