New Zealand · costs in NZD
Reverse cycle split system air conditioner
Temperzone ISD 251LYX / OSA 251RLTFH Heat Pump
Temperzone ISD 251LYX / OSA 251RLTFH is a 22.5 kW reverse cycle ducted split system heat pump registered for sale in New Zealand under the trans-Tasman E3 energy rating scheme (registration AAC8608).
- Energy rating (cooling)
- 1
- Heating: 1
- Annual electricity use
- 13,011 kWh
- 2,069 cooling + 10,942 heating
- Estimated running cost
- $4,294 / year
- $358 / month · $42,936 over 10 years
- Capacity
- 22.5 kW cooling
- 23.3 kW heating
About the same electricity as the median of 15 comparable 25 kW reverse cycle ducted split system registrations (13,045 kWh a year) in the cold zone. Uses less than 53% of them.
Across all 3,611 air conditioner registrations sold in Australia, it uses less than 10% (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.
Temperzone ISD 251LYX running cost by climate zone
| Climate zone | kWh / year | Per year | 10 years |
|---|---|---|---|
| Cold zone | 13,011 | $4,294 | $42,936 |
| Mixed zone | 7,493 | $2,473 | $24,727 |
| Hot zone | 9,897 | $3,266 | $32,660 |
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 22.5 kW, at least 3% lower annual kWh in the cold zone.
| Model | Stars | Est. cost / yr | Compare |
|---|---|---|---|
| Daikin RZAS200DY1 / FDYA200AV122.4 kW heating20 kW cooling9,309 kWh/yr | 2.5 | $3,072 | |
| Haier 1U200S5SA2FB / AD200S5SH2FA22.4 kW heating20 kW cooling9,384 kWh/yr | 2.5 | $3,097 | |
| Mitsubishi Heavy Industries FDCA200VSA-W/FDUA200VH22.4 kW heating20 kW cooling9,482 kWh/yr | 3 | $3,129 | |
| Panasonic U-200PZH3R8 / S-200PE4R22.4 kW heating20 kW cooling9,498 kWh/yr | 3 | $3,134 | |
| Fujitsu AOTH72KRTA/ARTH72KHTA22.4 kW heating20 kW cooling9,868 kWh/yr | 2.5 | $3,256 |
Heat pumps similar to the Temperzone ISD 251LYX
Technically comparable registrations: same configuration and type, capacity within 12%.
| Model | Stars | Est. cost / yr | Compare |
|---|---|---|---|
| Actron Air CRS23AT / ECA23AS & EFA23AS24.5 kW heating22.6 kW cooling10,570 kWh/yr | 2.5 | $3,488 | |
| Actron Air CRS23AT / EVA23AS24.5 kW heating22.6 kW cooling10,570 kWh/yr | 2.5 | $3,488 | |
| APAC S020OVR3SA / S020IVR3SA-TR18.9 kW heating22.4 kW cooling11,029 kWh/yr | 1.5 | $3,640 | |
| APAC S020OVR3SA / S020ILR1SA-TR18.9 kW heating22.4 kW cooling11,029 kWh/yr | 1.5 | $3,640 | |
| Panasonic U-224PZH3R8 / S-224PE4R25 kW heating22.4 kW cooling10,967 kWh/yr | 2.5 | $3,619 | |
| Fujitsu AOTH90KRTA/ARTH90KHTA25 kW heating22.4 kW cooling12,261 kWh/yr | 2 | $4,046 | |
| Panasonic U-224PE2R8A/S-224PE3R5B25 kW heating22.4 kW cooling13,247 kWh/yr | 2 | $4,372 | |
| Haier 1U250S5SA2FB / AD250S5SH2FA25 kW heating22 kW cooling11,034 kWh/yr | 2.5 | $3,641 |
Compare ISD 251LYX / OSA 251RLTFH with another model
Temperzone ISD 251LYX specifications
- Type
- Reverse cycle
- Configuration
- Split system
- Air distribution
- Ducted
- Indoor unit
- –
- Rated cooling capacity (35 °C)
- 22.53 kW
- Cooling power input
- 7.07 kW
- Rated heating capacity (7 °C)
- 23.28 kW
- Heating power input
- 6.70 kW
- EER, full load (tested)
- 3.19
- COP, full load (tested)
- 3.47
- Rated AEER
- 3.15
- Rated ACOP
- 3.44
- Standby power (PIA)
- 22.0 W
- Compressor
- Variable speed, Inverter
- Refrigerant
- R32
- Power supply
- Three phase
- Indoor sound power
- –
- Outdoor sound power
- –
- Demand response (AS/NZS 4755)
- No
- Country of manufacture
- Australia, New Zealand
Dimensions are not collected for registrations under the 2019 Determination, so they are shown only where the source has them.
Temperzone ISD 251LYX 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 | – | – | 4,928 | 3,700 |
| Coldresidential | residential | 1.0 | 1.0 | 2,069 | 10,942 |
| Mixedcommercial | commercial | – | – | 5,989 | 2,020 |
| Mixedresidential | residential | 1.5 | 1.0 | 3,112 | 4,381 |
| Hotcommercial | commercial | – | – | 12,772 | 456 |
| Hotresidential | residential | 1.5 | 1.0 | 9,179 | 718 |
Part-load test points (6 values)
- h__h2_full_cap_power_rated
- 6600 W
- h__h3_have_full_cap_results
- No
- h__h2_full_cap_heat_cap_rated
- 20500 W
- c__low_temp_full_cap_power_rated
- 6570 W
- c__low_temp_have_full_cap_results
- Yes
- c__low_temp_full_cap_cooling_cap_rated
- 23500 W
New Zealand E3 registration details
- Registration number
- AAC8608
- GEMS registration id
- 167360
- Status
- approved, available (self-reported)
- Registration expires
- 24 February 2030
- Registered for sale in
- Australia, Fiji, New Zealand
- Family
- –
- Regulatory standard
- [SEER Non Multi-Split <=65kW] GEMS (Air Conditioners up to 65kW) Determination 2019
- Test standard
- AS/NZS 3823.1.2:2012
- MEPS
- 2019
- Product class
- Class 11
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 19 September 2026; last checked 20 September 2026. How the derived figures are calculated.