8.7 kWCarrier QSM Slim Line 8.7kW Ducted System
The 8.7kW Carrier QSM Slim Line Ducted (indoor 42QSM090D8S) is rated at 8.7kW cooling and sized for typical three-bedroom single-storey homes. As a guide it covers roughly 58 to 70m² 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. For more bedrooms or a larger floor plan, the 10.15kW 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 8.7 kW options, or ask about supply and installation.
About $556 a year at the current Sydney median electricity rate: $203 of cooling plus $353 of heating, from the official GEMS test figures.
The Carrier QSM Slim Line 8.7kW uses 701 kWh per year for cooling and 1222 kWh per year for heating, based on official GEMS registration testing in Sydney's climate zone. These figures reflect your actual expected energy consumption and form the basis for running cost calculations with current Sydney electricity rates.
The system holds a 3.5-star cooling efficiency rating and 2.5-star heating efficiency rating under the zoned labelling scheme for Sydney. It achieves a rated cooling efficiency (AEER) of 3.24 and heating efficiency (ACOP) of 3.93. The unit uses R32 refrigerant.
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 | 42QSM090D8S |
| Series | Carrier QSM Slim Line Ducted |
| System type | Ducted System |
| Capacity | 8.7 kW |
| Refrigerant | R32 |
| ESP (rated/max) | up to 50 / 160 Pa |
| Power supply | 220-240V single phase |
| Warranty | 7 year parts & labour (residential) |
