Australia · costs in AUD
Cooling only packaged air conditioner
Diamond RT074 Air Conditioner
Diamond RT074 is a 74 kW cooling only ducted packaged air conditioner registered under Australia’s Energy Rating (GEMS) scheme (registration AAC7107).
- Energy rating (cooling)
- 1.5
- Annual electricity use
- 9,252 kWh
- Estimated running cost
- $2,961 / year
- $247 / month · $29,606 over 10 years
- Capacity
- 74 kW cooling
21% less electricity than the median of 10 comparable 80 kW and above cooling only ducted packaged registrations (11,738 kWh a year) in the mixed zone. Uses less than 80% of them.
Across all 3,680 air conditioner registrations sold in Australia, it uses less than 9% (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.
Diamond RT074 running cost by climate zone
| Climate zone | kWh / year | Per year | 10 years |
|---|---|---|---|
| Cold zone | 6,088 | $1,948 | $19,482 |
| Mixed zone | 9,252 | $2,961 | $29,606 |
| Hot zone | 27,677 | $8,857 | $88,566 |
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 74 kW, at least 3% lower annual kWh in the mixed zone.
| Model | Stars | Est. cost / yr | Compare |
|---|---|---|---|
| APAC P072AHC3SA-R74.4 kW cooling8,778 kWh/yr | 1.5 | $2,809 | |
| APAC P072AHC3SA74.4 kW cooling8,778 kWh/yr | 1.5 | $2,809 |
Air conditioners similar to the Diamond RT074
Technically comparable registrations: same configuration and type, capacity within 12%.
| Model | Stars | Est. cost / yr | Compare |
|---|---|---|---|
| APAC P072AHC3SA-R74.4 kW cooling8,778 kWh/yr | 1.5 | $2,809 | |
| APAC P072AHC3SA74.4 kW cooling8,778 kWh/yr | 1.5 | $2,809 |
Other Diamond models of similar capacity
| Model | Stars | Est. cost / yr | Compare |
|---|---|---|---|
| Diamond RT08080.4 kW cooling10,222 kWh/yr | 1.5 | $3,271 |
Compare RT074 with another model
Diamond RT074 specifications
- Type
- Cooling only
- Configuration
- Packaged
- Air distribution
- Ducted
- Indoor unit
- –
- Rated cooling capacity (35 °C)
- 74.04 kW
- Cooling power input
- 22.40 kW
- Rated heating capacity (7 °C)
- –
- Heating power input
- –
- EER, full load (tested)
- 3.31
- COP, full load (tested)
- –
- Rated AEER
- 3.30
- Rated ACOP
- –
- Standby power (PIA)
- 1.0 W
- Compressor
- Fixed speed
- Refrigerant
- R407
- Power supply
- Three phase
- Indoor sound power
- –
- Outdoor sound power
- –
- Demand response (AS/NZS 4755)
- No
- Country of manufacture
- Australia
Dimensions are not collected for registrations under the 2019 Determination, so they are shown only where the source has them.
Diamond RT074 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 | – | – | 14,246 | – |
| Coldresidential | residential | 1.5 | – | 6,088 | – |
| Mixedcommercial | commercial | – | – | 17,597 | – |
| Mixedresidential | residential | 1.5 | – | 9,252 | – |
| Hotcommercial | commercial | – | – | 38,182 | – |
| Hotresidential | residential | 2.0 | – | 27,677 | – |
Part-load test points (1 values)
- c__low_temp_have_full_cap_results
- No
Australian GEMS registration details
- Registration number
- AAC7107
- GEMS registration id
- 150362
- Status
- approved, available (self-reported)
- Registration expires
- 18 October 2027
- Registered for sale in
- Australia
- Family
- –
- Regulatory standard
- [SEER Non Multi-Split >65kW] GEMS (Air Conditioners above 65kW) Determination 2022
- Test standard
- Simulation
- MEPS
- 2020
- Product class
- Class 24
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. How the derived figures are calculated.