5.28 kWCarrier QSM Slim Line 5.28kW Ducted System
The 5.28kW Carrier QSM Slim Line Ducted (indoor 42QSM053D8S) is rated at 5.28kW cooling and sized for smaller homes, or zoning part of a larger one. As a guide it covers roughly 35 to 42m² of conditioned floor area, depending on zoning, insulation and ceiling height. It runs R32 refrigerant and carries Carrier’s 7 year residential parts and labour warranty. It is the smallest unit in the QSM series. For more bedrooms or a larger floor plan, the 5.83kW is the next step up.
Part of the Carrier QSM Slim Line Ducted range, Carrier's ducted 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 5.28 kW options, or ask about supply and installation.
About $401 a year at the current Sydney median electricity rate: $136 of cooling plus $265 of heating, from the official GEMS test figures.
The Carrier QSM Slim Line 5.28kW uses 409 kWh per year for cooling and 799 kWh per year for heating according to official GEMS registration test figures for Sydney's climate zone. These standard test values show the energy consumption you can expect under regulated test conditions. Your actual usage will depend on how often you run the system and your temperature settings.
The unit holds a 3.5-star energy rating for cooling and 2-star rating for heating under Sydney's zoned energy label. It has a rated AEER of 3.32 for cooling efficiency and an ACOP of 3.70 for heating efficiency. The system uses R32 refrigerant. Your running cost will depend on these consumption figures and your local electricity rate.
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 Carrier QSM Slim Line Ducted range| Brand | Carrier |
|---|---|
| Model | 42QSM053D8S |
| Series | Carrier QSM Slim Line Ducted |
| System type | Ducted System |
| Capacity | 5.28 kW |
| Refrigerant | R32 |
| ESP (rated/max) | up to 50 / 160 Pa |
| Power supply | 220-240V single phase |
| Warranty | 7 year parts & labour (residential) |
