5 kWPanasonic Z Series 5kW Split System
The 5kW Panasonic Z Series (model CS-Z50AKRW) is sized for living rooms and master suites. As a guide, it cools a room of up to about 36 to 43 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 6kW.
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 5 kW options, see every 5kW split system ranked by running cost, or ask about supply and installation.
About $402 a year at the current Sydney median electricity rate: $133 of cooling plus $269 of heating, from the official GEMS test figures.
The Panasonic Z Series 5kW uses 402 kWh per year for cooling and 813 kWh per year for heating, based on official GEMS testing in Sydney's climate zone. These figures reflect typical household use patterns and allow you to calculate running costs against your local electricity rate. The system achieves a cooling efficiency rating of 3.5 stars and a heating efficiency rating of 2.5 stars under the zoned energy labelling scheme.
Efficiency is measured by AEER (cooling) at 3.29 and ACOP (heating) at 3.47, indicating how much cooling or heating output you get per unit of energy consumed. The system uses R32 refrigerant. Your actual energy consumption will vary depending on how often you run the unit, your preferred temperature settings and local weather conditions.
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-Z50AKRW |
| Series | Panasonic Z Series Deluxe Split |
| System type | Split System |
| Capacity | 5 kW |
| Refrigerant | R32 |
| Warranty | 5 year parts & labour |
