Australia · costs in AUD
Reverse cycle multi-split / vrf air conditioner
Rinnai DONSR20Z9 Air Conditioner
Rinnai DONSR20Z9 is a 20 kW reverse cycle multi-split / vrf air conditioner registered under Australia’s Energy Rating (GEMS) scheme (registration AAC9090).
- Energy rating (cooling)
- 2
- Heating: 2
- Annual electricity use
- 5,219 kWh
- 2,169 cooling + 3,050 heating
- Estimated running cost
- $1,670 / year
- $139 / month · $16,701 over 10 years
- Capacity
- 20 kW cooling
- 20 kW heating
About the same electricity as the median of 30 comparable 20 kW reverse cycle multi-split / vrf registrations (5,202 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 17% (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.
Rinnai DONSR20Z9 running cost by climate zone
| Climate zone | kWh / year | Per year | 10 years |
|---|---|---|---|
| Cold zone | 9,791 | $3,133 | $31,331 |
| Mixed zone | 5,219 | $1,670 | $16,701 |
| Hot zone | 6,703 | $2,145 | $21,450 |
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 20 kW, at least 3% lower annual kWh in the mixed zone.
| Model | Stars | Est. cost / yr | Compare |
|---|---|---|---|
| Smart Lifestyle Australia SLA-MS18-CHDVRF22.5 kW heating18 kW cooling3,470 kWh/yr | 4 | $1,110 | |
| Emerald ACV180U20.4 kW heating18.1 kW cooling3,970 kWh/yr | 3 | $1,270 | |
| Panasonic U-8MF3R725 kW heating22.4 kW cooling4,089 kWh/yr | 4 | $1,308 | |
| Daikin RSUYA7AYM22.4 kW heating20 kW cooling4,116 kWh/yr | 3 | $1,317 | |
| Smart Lifestyle Australia SLA-MS21-CHDVRF26 kW heating21.5 kW cooling4,134 kWh/yr | 4 | $1,323 |
Air conditioners similar to the Rinnai DONSR20Z9
Technically comparable registrations: same configuration and type, capacity within 12%.
| Model | Stars | Est. cost / yr | Compare |
|---|---|---|---|
| Emerald Energy ACV200U26 kW heating20 kW cooling4,342 kWh/yr | 4 | $1,389 | |
| Daikin RSUYA7AYM22.4 kW heating20 kW cooling4,116 kWh/yr | 3 | $1,317 | |
| Smart Lifestyle Australia SLA-MS21-CHDVRF26 kW heating21.5 kW cooling4,134 kWh/yr | 4 | $1,323 | |
| Emerald ACV180U20.4 kW heating18.1 kW cooling3,970 kWh/yr | 3 | $1,270 | |
| Smart Lifestyle Australia SLA-MS18-CHDVRF22.5 kW heating18 kW cooling3,470 kWh/yr | 4 | $1,110 | |
| Panasonic U-8MF3R725 kW heating22.4 kW cooling4,089 kWh/yr | 4 | $1,308 | |
| Daikin RSUYA8AYM25 kW heating22.4 kW cooling4,709 kWh/yr | 3 | $1,507 |
Other Rinnai models of similar capacity
| Model | Stars | Est. cost / yr | Compare |
|---|---|---|---|
| Rinnai DONSR20Z3TA22 kW heating20 kW cooling5,792 kWh/yr | 2 | $1,853 |
Compare DONSR20Z9 with another model
Rinnai DONSR20Z9 specifications
- Type
- Reverse cycle
- Configuration
- Multi-split / VRF
- Air distribution
- Ducted or non-ducted
- Indoor unit
- –
- Rated cooling capacity (35 °C)
- 20.00 kW
- Cooling power input
- 6.00 kW
- Rated heating capacity (7 °C)
- 20.00 kW
- Heating power input
- 5.50 kW
- EER, full load (tested)
- 3.32
- COP, full load (tested)
- 3.70
- Rated AEER
- 3.27
- Rated ACOP
- 3.56
- Standby power (PIA)
- 32.6 W
- Compressor
- Variable speed, Inverter
- Refrigerant
- R410A
- Power supply
- Three phase
- Indoor sound power
- –
- Outdoor sound power
- 78 dB(A)
- Demand response (AS/NZS 4755)
- No
- Country of manufacture
- China
Dimensions are not collected for registrations under the 2019 Determination, so they are shown only where the source has them.
Rinnai DONSR20Z9 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 | – | – | 3,065 | 2,718 |
| Coldresidential | residential | 2.0 | 1.5 | 1,410 | 8,381 |
| Mixedcommercial | commercial | – | – | 3,823 | 1,360 |
| Mixedresidential | residential | 2.0 | 2.0 | 2,169 | 3,050 |
| Hotcommercial | commercial | – | – | 8,362 | 318 |
| Hotresidential | residential | 2.5 | 2.5 | 6,220 | 483 |
Part-load test points (11 values)
- h__h2_ext_cap_power_rated
- 6100 W
- c__t1_half_cap_power_rated
- 2450 W
- c__t1_have_min_cap_results
- No
- h__h1_half_cap_power_rated
- 2200 W
- h__h1_have_min_cap_results
- No
- h__h2_ext_cap_heat_cap_rated
- 15500 W
- h__h1_half_cap_heat_cap_rated
- 10000 W
- h__h2_is_capable_extended_load
- Yes
- c__low_temp_have_min_cap_results
- No
- c__t1_half_cap_cooling_cap_rated
- 10000 W
- c__low_temp_have_half_cap_results
- No
Australian GEMS registration details
- Registration number
- AAC9090
- GEMS registration id
- 170540
- Status
- approved, available (self-reported)
- Registration expires
- 15 July 2030
- 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: rinnai.com.au. How the derived figures are calculated.