2.5 kWPanasonic Z Series 2.5kW Split System
The 2.5kW Panasonic Z Series (model CS-Z25AKRW) is sized for standard bedrooms and small home offices. As a guide it suits a typical insulated room of roughly 17 to 20m²; sun exposure and ceiling height move that band. Like the rest of the Z Series it runs nanoe X air purification around the clock. It is the smallest capacity in the Z Series range. If the space is bigger, has high ceilings or strong afternoon sun, step up to the 3.5kW.
The Panasonic Z Series 2.5kW uses 180 kWh per year for cooling and 355 kWh per year for heating under standard test conditions in Sydney's climate zone. These figures are from the GEMS official registration data. The system achieves a 4-star energy rating for cooling and a 3-star rating for heating, indicating moderate efficiency for Sydney conditions. Your actual running costs will depend on local electricity rates and how much you use the system.
The Panasonic Z Series has a rated cooling efficiency (AEER) of 4.25 and heating efficiency (ACOP) of 4.56. The unit uses R32 refrigerant. To calculate your expected running costs, multiply the annual energy consumption by your current electricity rate from your retailer.
Source: Australian GEMS registry · median of 170 Sydney residential tariffs · Refreshed monthly · Last updated June 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-Z25AKRW |
| Series | Panasonic Z Series Deluxe Split |
| System type | Split System |
| Capacity | 2.5 kW |
| Refrigerant | R32 |
| Warranty | 5 year parts & labour |
