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 $349 a year at the current Sydney median electricity rate: $118 of cooling plus $231 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 under official GEMS testing in Sydney's climate zone. These figures reflect actual measured performance and form the basis of your running cost estimate, which updates automatically with current Sydney electricity rates. The system achieves a cooling efficiency (AEER) of 3.32 and heating efficiency (ACOP) of 3.70.
The system holds a 3.5-star cooling rating and 2-star heating rating under the zoned energy label for Sydney. These government-registered figures help you compare efficiency against other ducted systems rated in the same climate zone.
Source: Australian GEMS registry · median of 170 Sydney residential tariffs · Refreshed monthly · Last updated September 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) |
