c/kWh
Energy rating (cooling)
1.5
Annual electricity use
6,920 kWh
Estimated running cost
$2,214 / year
$185 / month Β· $22,144 over 10 years
Capacity
53 kW cooling

About the same electricity as the median of 5 comparable 50 kW cooling only ducted packaged registrations (6,920 kWh a year) in the mixed zone. Uses less than 40% 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).

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.

Diamond RT053 running cost by climate zone

Climate zonekWh / yearPer year10 years
Cold zone 4,554$1,457$14,573
Mixed zone 6,920$2,214$22,144
Hot zone 20,698$6,623$66,234

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 53 kW, at least 3% lower annual kWh in the mixed zone.

ModelStarsEst. cost / yrCompare
Diamond RT04848 kW cooling6,049 kWh/yr1.5$1,936

Air conditioners similar to the Diamond RT053

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

ModelStarsEst. cost / yrCompare
Caa VPA055C3AC53.2 kW cooling7,435 kWh/yr1.5$2,379
APAC P054AHC3SA-R56.9 kW cooling7,680 kWh/yr1$2,458
APAC P054AHC3SA-L56.9 kW cooling7,680 kWh/yr1$2,458

Other Diamond models of similar capacity

ModelStarsEst. cost / yrCompare
Diamond RT04848 kW cooling6,049 kWh/yr1.5$1,936

Compare RT053 with another model

Diamond RT053 specifications

Type
Cooling only
Configuration
Packaged
Air distribution
Ducted
Indoor unit
–
Rated cooling capacity (35 Β°C)
53.00 kW
Cooling power input
16.75 kW
Rated heating capacity (7 Β°C)
–
Heating power input
–
EER, full load (tested)
3.16
COP, full load (tested)
–
Rated AEER
3.16
Rated ACOP
–
Standby power (PIA)
1.0 W
Compressor
Fixed speed
Refrigerant
R407C
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 RT053 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––10,654–
Coldresidential1.5–4,554–
Mixedcommercial––13,160–
Mixedresidential1.5–6,920–
Hotcommercial––28,554–
Hotresidential1.5–20,698–
Part-load test points (1 values)
c__low_temp_have_full_cap_results
No

Australian GEMS registration details

Registration number
AAC10168
GEMS registration id
179524
Status
approved, available (self-reported)
Registration expires
10 June 2031
Registered for sale in
Australia
Family
–
Regulatory standard
[SEER Non Multi-Split <=65kW] GEMS (Air Conditioners up to 65kW) Determination 2019
Test standard
Simulation
MEPS
2019
Product class
Class 7

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.