New Zealand · costs in NZD
Reverse cycle multi-split / vrf air conditioner
Rinnai DONSR20Z9 Heat Pump
Rinnai DONSR20Z9 is a 20 kW reverse cycle multi-split / vrf heat pump registered for sale in New Zealand under the trans-Tasman E3 energy rating scheme (registration AAC9090).
- Energy rating (cooling)
- 2
- Heating: 1.5
- Annual electricity use
- 9,791 kWh
- 1,410 cooling + 8,381 heating
- Estimated running cost
- $3,231 / year
- $269 / month · $32,310 over 10 years
- Capacity
- 20 kW cooling
- 20 kW heating
3% less electricity than the median of 29 comparable 20 kW reverse cycle multi-split / vrf registrations (10,056 kWh a year) in the cold zone. Uses less than 62% of them.
Across all 3,611 air conditioner registrations sold in Australia, it uses less than 14% (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 cold zone (Canberra climate: Canberra, Hobart, Ballarat, alpine areas). All of New Zealand is the cold zone on the Zoned Energy Rating Label. Cost = kWh × 33c/kWh in NZD; 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 | $3,231 | $32,310 |
| Mixed zone | 5,219 | $1,722 | $17,223 |
| Hot zone | 6,703 | $2,212 | $22,120 |
At 33c/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.
Heat pumps that use less electricity
Same configuration and type, cooling capacity within 12% of 20 kW, at least 3% lower annual kWh in the cold zone.
| Model | Stars | Est. cost / yr | Compare |
|---|---|---|---|
| Daikin RSUYA7AYM22.4 kW heating20 kW cooling7,360 kWh/yr | 3 | $2,429 | |
| Emerald ACV180U20.4 kW heating18.1 kW cooling7,823 kWh/yr | 3.5 | $2,582 | |
| Panasonic U-8MF3R725 kW heating22.4 kW cooling8,140 kWh/yr | 4 | $2,686 | |
| Daikin RSUYA8AYM25 kW heating22.4 kW cooling8,492 kWh/yr | 3 | $2,802 | |
| Mitsubishi Heavy Industries FDC224KXZPE122.4 kW heating22.4 kW cooling8,641 kWh/yr | 2.5 | $2,852 |
Heat pumps 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 cooling8,986 kWh/yr | 4 | $2,965 | |
| Daikin RSUYA7AYM22.4 kW heating20 kW cooling7,360 kWh/yr | 3 | $2,429 | |
| Emerald ACV180U20.4 kW heating18.1 kW cooling7,823 kWh/yr | 3.5 | $2,582 | |
| Panasonic U-8MF3R725 kW heating22.4 kW cooling8,140 kWh/yr | 4 | $2,686 | |
| Mitsubishi Heavy Industries FDC224KXZME122.4 kW heating22.4 kW cooling8,706 kWh/yr | 2.5 | $2,873 | |
| Mitsubishi Heavy Industries FDC224KXZPE122.4 kW heating22.4 kW cooling8,641 kWh/yr | 2.5 | $2,852 | |
| Daikin RSUYA8AYM25 kW heating22.4 kW cooling8,492 kWh/yr | 3 | $2,802 |
Other Rinnai models of similar capacity
| Model | Stars | Est. cost / yr | Compare |
|---|---|---|---|
| Rinnai DONSR20Z3TA22 kW heating20 kW cooling11,751 kWh/yr | 2 | $3,878 |
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
New Zealand E3 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: E3 programme registration data (EECA, New Zealand) (trans-Tasman E3 registration data published by DCCEEW on 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.