Rinnai | TX Series Inverter Split System Air Conditioner 7.0kW | R32 Reverse Cycle
The Rinnai HSNRTX70 is a reverse cycle inverter split system rated 7.0 kW cooling and 7.5 kW heating. The HSNRTX70 pairs the HINRTX70 indoor head with the HONRTX70 outdoor unit, charged with R32 refrigerant. Capacity figures follow AS/NZS 3823.2 testing, and the indoor unit carries built-in Wi-Fi.
A 7.0 kW unit is open-plan duty, and the sizing call is easy to get wrong at this end of the range. The HSNRTX70 covers 32 to 47 square metres under a 2.6 metre insulated ceiling. That span suits a combined kitchen, living and dining area or a large family room. Inverter control holds the setpoint by varying compressor speed instead of cycling hard on and off. Dehumidifying mode pulls up to 3.4 litres an hour out of the room on humid summer running.
The HONRTX70 ships charged for 15 metres of pipe, takes 50 metres maximum, and allows 25 metres of vertical separation. Pair coil runs 1/4 inch and 5/8 inch, which is 6.35 mm on the liquid line and 15.90 mm on the gas line. Maximum input power is 4050 W with a 17.5 A current draw across cooling and heating. GoldGuard coil coating on the outdoor unit adds corrosion protection for coastal and harsh sites.
Carton sizes and weights
- Indoor unit (HINRTX70) — 415 x 1155 x 318 mm boxed, 17.1 kg gross and 13.2 kg bare.
- Outdoor unit (HONRTX70) — 750 x 1030 x 438 mm boxed, 47.2 kg gross and 43.8 kg bare.
The longest carton runs 1155 mm, and the two boxes together come to 64.3 kg. Check that the vehicle or trailer takes both cartons before collecting. The outdoor unit must stay upright in transit and cannot be laid on its side.
Features
- 7.0 kW rated cooling — the HSNRTX70 delivers a rated 7.0 kW in cooling mode, tested with 5 metres of interconnecting pipe.
- 7.5 kW rated heating — reverse cycle operation puts out more in heating than cooling, so winter duty is covered on the same hardware.
- Modulating capacity range — cooling output varies between 2.91 kW and 8.23 kW as the inverter compressor tracks the load.
- R32 refrigerant — the system runs on R32, the current low global warming potential refrigerant for residential splits, with a 1.40 kg factory charge.
- 4.0 star cooling rating — rated 4.0 stars in the hot climate zone, with an annualised energy efficiency ratio of 3.48.
- Built-in Wi-Fi — the NetHome Plus app runs scheduling, mode and setpoint control from a phone without an added adapter.
- Voice control — the HSNRTX70 responds to Google Home and Amazon Alexa devices for hands-free operation.
- HEPA air filtration — removes up to 99 percent of dust and reduces bacteria carried through the indoor coil.
- DRED enabled — supports demand response signalling where the electricity retailer offers a participating tariff.
- GoldGuard coil coating — 14-karat gold plating on the outdoor coil for corrosion resistance in coastal and harsh conditions.
- 21.0 dB(A) minimum fan — sound pressure at one metre drops to 21.0 dB(A) on the lowest indoor fan setting.
- Outdoor ambient limits — rated from -15 to 50 degrees Celsius in cooling and -15 to 24 degrees in heating, not beyond.
Where to use
- Open-plan living and dining — the HSNRTX70 is sized for 32 to 47 square metres, which covers a combined kitchen, living and dining area.
- Large family and rumpus rooms — 7.5 kW of heating output carries a big room through winter without a separate heater.
- Humid summer rooms — dehumidifying mode strips up to 3.4 litres an hour, which matters in Queensland and northern New South Wales.
- Coastal and harsh sites — GoldGuard coil coating on the outdoor unit suits salt air and dusty inland exposure.
- Upper-storey installs — 25 metres of vertical separation lets the outdoor unit sit at ground level below an upstairs living area.
- Remotely managed properties — built-in Wi-Fi lets a holiday house or rental be started, stopped and scheduled off site.
The HSNRTX70 is not rated for outdoor ambient below -15 degrees Celsius, and heating output falls as the outside temperature drops toward that limit. It is sized for 32 to 47 square metres, so smaller rooms and whole-house duty sit outside its capacity. Refrigerant and electrical work make this a licensed install, not a DIY fit-off.
