3.5 kWDaikin Zena 3.5kW Split System
The 3.5kW Daikin Zena Split System 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. It sits in the lower half of the Daikin Zena Split System range. If the space is bigger, has high ceilings or strong afternoon sun, step up to the 5kW.
Part of the Daikin Zena Split System range, Daikin's split system line, in 4 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 $247 a year at the current Sydney median electricity rate: $94 of cooling plus $153 of heating, from the official GEMS test figures.
The Daikin Zena 3.5kW uses 283 kWh per year for cooling and 461 kWh per year for heating, based on official government test data for Sydney's climate zone. The system carries a 3.5-star energy rating for cooling and 2.5-star rating for heating under the zoned label system. An AEER of 4.29 and ACOP of 4.53 indicate the efficiency of energy conversion during operation.
Your running costs depend on how much you run the system and your local electricity rate. The energy consumption figures above allow you to calculate expected costs. The unit uses R32 refrigerant, a low-global-warming-potential gas that supports efficient operation.
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 Daikin Zena Split System range| Brand | Daikin |
|---|---|
| Model | FTXJ35T2VMAW / FTXJ35T2VMAK |
| Series | Daikin Zena Split System |
| System type | Split System |
| Capacity | 3.5 kW |
| Refrigerant | R32 |
| Warranty | 5 year parts & labour |
