Carrier

Carrier QSM Slim Line 7.85kW Ducted System

Model 42QSM080D8S

The 7.85kW Carrier QSM Slim Line Ducted (indoor 42QSM080D8S) is rated at 7.85kW cooling and sized for smaller homes, or zoning part of a larger one. As a guide it covers roughly 52 to 63m² 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 8.7kW is the next step up.

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Energy efficiencyRegistered: 38QSM080D8S/42QSM080D8S
3.5 starsCooling ratingSydney climate zone
2.5 starsHeating ratingSydney climate zone
628 kWhCooling energy / yearabout $218 at the Sydney median rate
1129 kWhHeating energy / yearabout $392 at the Sydney median rate
3.12AEERACOP 3.56
What it costs to run

The Carrier QSM Slim Line 7.85kW is registered with the GEMS database for Sydney's climate zone. For cooling, it consumes 628 kWh per year and carries a 3.5-star energy rating. For heating, it uses 1129 kWh annually and holds a 2.5-star rating. These figures reflect typical annual operation in Sydney conditions and are based on official government test data.

Efficiency is measured by AEER (cooling) at 3.12 and ACOP (heating) at 3.56. The system uses R32 refrigerant. Your actual running costs will depend on your local electricity rate and how often you run heating and cooling. The exact estimate for your postcode appears separately on this page.

Source: Australian GEMS registry · median of 170 Sydney residential tariffs · Refreshed monthly · Last updated June 2026

The details

Specifications

From the manufacturer’s published range data. We confirm the exact configuration when we quote.

About the Carrier QSM Slim Line Ducted range
Documentation
BrandCarrier
Model42QSM080D8S
SeriesCarrier QSM Slim Line Ducted
System typeDucted System
Capacity7.85 kW
RefrigerantR32
ESP (rated/max)up to 50 / 160 Pa
Power supply220-240V single phase
Warranty7 year parts & labour (residential)