5 kWMHI Avanti Plus 5kW Split System
The 5kW MHI Avanti Plus Split (model SRK50ZSXA-W) 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. If the space is bigger, has high ceilings or strong afternoon sun, step up to the 6kW.
Part of the MHI AvantiPlus WF Split range, Mitsubishi Heavy Industries's split system line, in 5 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 $362 a year at the current Sydney median electricity rate: $133 of cooling plus $229 of heating, from the official GEMS test figures.
The MHI Avanti Plus 5kW uses 402 kWh annually for cooling and 691 kWh annually for heating under official GEMS test conditions for Sydney's climate zone. These figures reflect typical usage patterns and allow you to calculate running costs based on your current electricity rate. The system achieves a cooling efficiency rating of 3.5 stars and a heating efficiency rating of 3 stars.
The unit operates at a rated cooling efficiency (AEER) of 4.00 and heating efficiency (ACOP) of 4.38, using R32 refrigerant. Understanding your annual energy consumption helps you compare this system's operating costs against alternatives and budget for electricity expenses over the life of the unit.
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 MHI AvantiPlus WF Split range| Brand | Mitsubishi Heavy Industries |
|---|---|
| Model | SRK50ZSXA-WF |
| Series | MHI AvantiPlus WF Split |
| System type | Split System |
| Capacity | 5 kW |
| Refrigerant | R32 |
| Warranty | 5 year parts & labour |
