Description
The Rinnai PX Series 3.5kW Inverter Split System is a premium wall-mounted reverse cycle air conditioner built for rooms of approximately 16 to 23 m². With up to 6 star cooling efficiency, built-in Wi-Fi, HEPA filtration and R32 refrigerant, it delivers year-round comfort with low running costs.
❄️ Key Features
- ⭐ Up to 6 Star Energy Rating – 6 stars cooling in hot climate zones, 5.5 average, 6 cold
- 🌡️ 3.5kW Cooling / 3.8kW Heating – Reverse cycle comfort sized for rooms of approximately 16 to 23 m²
- 📱 Built-in Wi-Fi Control – Operate the system from anywhere via the NetHome Plus app, with Google Home and Amazon Alexa voice control
- 🔇 Whisper-Quiet Operation – Indoor sound pressure as low as 21 dB(A) on minimum fan speed
- 🤖 ECO+ Energy Savings – AI control predicts the best operating strategy for additional savings without sacrificing comfort
- 👤 Smart Human Sensor – Infrared sensor reduces output after 30 minutes with no movement detected
- 🌀 3D Airflow – Motorised 4-way louvres swing horizontally and vertically for balanced room temperature
- ⚡ Next-Gen Turbo+ – Rapid cooling in summer or fast warm-up in winter on demand
- 💧 Humidity Control – Set room humidity from 35% to 85% via remote or app, helping prevent overcooling
- 😴 Sleep Mode – Adjusts temperature, fan speed and airflow direction in line with natural sleep cycles
- 🧼 HEPA Filtration – Reduces 95% of bacteria and removes 99% of dust particles
- 🛡️ GoldGuard Coil Protection – Gold-plated condenser coil for improved resistance to oxidation and corrosion
- ♻️ R32 Refrigerant – Lower global warming potential, higher efficiency and reduced refrigerant volume
- 🔌 DRED Enabled – Demand response capability to help reduce consumption at critical peak load times
Product Details
Type: Inverter Reverse Cycle Split System Air Conditioner (wall mounted)
Nominal Capacity: 3.5 kW cooling / 3.8 kW heating
System model number: HSNRPX35
Indoor unit: HINRPX35M
Outdoor unit: HONRPX35
Suitable area coverage: 16 to 23 m² (up to 2.6 m insulated ceiling)
Location: Indoor unit wall mounted, outdoor unit installed externally
Warranty Information (warranty conditions apply)
Residential use: 7-year limited warranty
Commercial use: Refer to the Rinnai air conditioner warranty booklet for applicable terms
Energy Rating
Air conditioner efficiency varies with climate, so this model carries a Zoned Energy Rating Label covering hot, average and cold zones. Cooling: 6 / 5.5 / 6 stars. Heating: 4 / 3.5 / 3 stars. The 6 star cooling result applies to Australia’s hot climate zone.
Installation Requirements
Dimensions
Indoor Unit (HINRPX35M)
Dimensions (W x D x H): 813 x 201 x 289 mm
Net / Gross Weight: 8.2 / 10.8 kg
Outdoor Unit (HONRPX35)
Dimensions (W x D x H): 805 x 330 x 554 mm
Net / Gross Weight: 31.8 / 34.5 kg
Technical Specifications
| Refrigerant | R32 / 0.90 kg |
|---|---|
| Cooling Capacity (rated / range) | 3.5 kW (0.89-4.04 kW) |
| Heating Capacity (rated / range) | 3.8 kW (1.30-5.04 kW) |
| Rated Power Input (cooling / heating) | 802 W / 842 W |
| Max Input Power | 2300 W |
| Max Input Current | 10.5 A |
| Power Supply | 220–240 V / 1 Ph / 50 Hz |
| AEER | 4.355 |
| ACOP | 4.504 |
| Star Rating – Cooling (hot / average / cold) | 6 / 5.5 / 6 |
| Star Rating – Heating (hot / average / cold) | 4 / 3.5 / 3 |
| Indoor Sound Pressure @ 1 m | 46.5 / 39.5 / 33.5 / 27 / 21 dB(A) |
| Indoor Sound Power Level | 60.0 dB(A) |
| Outdoor Sound Power Level | 64.0 dB(A) |
| Indoor Airflow (Turbo / Hi / Med / Lo / Min) | 222 / 167 / 125 / 103 / 61 L/s |
| Operating Range (room) | Cooling 16°C to 32°C, Heating 0°C to 30°C |
| Ambient Temperature Limits (outdoor) | Cooling -15°C to 50°C, Heating -15°C to 24°C |
| Pipe Size (liquid / gas) | 6.35 / 9.52 mm |
| Max Pipe Length | 25 m (10 m chargeless, 12 g/m beyond) |
| Max Vertical Separation | 10 m |
| Connectivity | Wi-Fi enabled, DRED enabled |
🚚 Delivery Information
We offer free delivery to Sydney, Melbourne, Wollongong, Central Coast, Newcastle, Perth, and South East Queensland. Please note that all sales must be within a 50km radius of a town with a population over 30,000. For all other areas, please phone us for a delivery quote.
Interested in the Rinnai PX Series? For more information:
Rinnai PX Series Air Conditioner Brochure
Rinnai PX Series Operation Manual
Rinnai PX Series WiFi Manual
Rinnai PX Series Warranty Booklet

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