3.5 kWPanasonic Z Series 3.5kW Split System
The 3.5kW Panasonic Z Series (model CS-Z35AKRW) is sized for large bedrooms and smaller living rooms. As a guide, it cools a room of up to about 25 to 29 m². That is from Mitsubishi Heavy Industries' sizing chart for an insulated room: the larger figure if it faces north, the smaller if it faces east. Western sun, poor insulation and high ceilings bring it down. Like the rest of the Z Series it runs nanoe X air purification around the clock. If the space is bigger, has high ceilings or strong afternoon sun, step up to the 4.2kW.
Part of the Panasonic Z Series Deluxe Split range, Panasonic's split system line, in 8 sizes. Running costs below use the Sydney median rate; the Eastern Suburbs and Western Sydney pages cost systems on their own network tariffs. Check the size against your rooms, compare it with other 3.5 kW options, see every 3.5kW split system ranked by running cost, or ask about supply and installation.
About $230 a year at the current Sydney median electricity rate: $80 of cooling plus $150 of heating, from the official GEMS test figures.
The Panasonic Z Series 3.5kW uses 240 kWh annually for cooling and 452 kWh annually for heating under standard test conditions for Sydney's climate zone. These are official government test figures registered with GEMS. The system has a cooling energy rating of 4.5 stars and a heating energy rating of 3 stars on the zoned label for Sydney.
The unit delivers a rated cooling efficiency (AEER) of 4.22 and heating efficiency (ACOP) of 4.55. It operates on R32 refrigerant. Your running costs depend on how often you use the system and your local electricity rate; the estimated annual cost based on current Sydney rates is shown separately above.
Source: Australian GEMS registry · median of 170 Sydney residential tariffs, including GST · Refreshed monthly · Last updated October 2026
Specifications
From the manufacturer’s published range data. We confirm the exact configuration when we quote.
About the Panasonic Z Series Deluxe Split range| Brand | Panasonic |
|---|---|
| Model | CS-Z35AKRW |
| Series | Panasonic Z Series Deluxe Split |
| System type | Split System |
| Capacity | 3.5 kW |
| Refrigerant | R32 |
| Warranty | 5 year parts & labour |
