The Carrier 42QSM070D8S / 38QSM070D8S 7.1kW Inverter Slim Ducted System is a powerful and discreet reverse cycle ducted air conditioning system designed for larger homes, open-plan living spaces, family rooms, and offices. With a slim concealed indoor unit, inverter technology, and built-in drain pump, it delivers reliable year-round comfort while remaining neatly hidden within the ceiling cavity.
With 7.1kW cooling and 7.1kW heating capacity, this model is ideal for rooms around 40–65m², including larger lounge and dining areas, family rooms, and open-plan spaces. Carrier’s inverter compressor technology helps maintain more stable temperatures while reducing energy consumption and operating costs.
Key Features & Benefits
Slim Ducted Design
The indoor unit features a low-profile design of approximately 210mm in height, making it suitable for homes with limited ceiling space. Despite its compact form, it still delivers strong airflow performance for larger residential and commercial applications.
Powerful Heating & Cooling Capacity
The system delivers 7.1kW of cooling and 7.1kW of heating, giving it the flexibility to comfortably manage larger open-plan living areas, family rooms, and office environments.
Advanced Inverter Technology
Carrier’s inverter technology continuously adjusts compressor speed to maintain a more stable indoor temperature while reducing power consumption and operating noise compared to conventional fixed-speed systems.
Built-In Drain Pump
The QSM Series includes a built-in drain pump to simplify installation and provide greater flexibility when positioning the indoor unit within ceiling spaces.
Strong Airflow Performance
The slim ducted design is engineered to provide even airflow across multiple rooms and larger open-plan areas, helping maintain more consistent temperatures throughout the home.
Wide Operating Temperature Range
The system is designed for Australian conditions and can continue operating in cooling mode up to 48–50°C outdoor temperature and heating mode down to -15°C to -20°C, making it suitable for year-round use across a wide range of climates.
Long Pipe Run Capability
Carrier’s slim ducted systems support longer pipe runs and height differences, making them suitable for multi-storey homes, offices, and more complex installations.
R32 Refrigerant
The system uses modern R32 refrigerant for improved efficiency and lower environmental impact compared to older refrigerants.
Single-Phase Power Supply
This model operates on standard single-phase power, making it suitable for most residential installations without requiring three-phase power.
Wired Controller Included
The system includes Carrier’s wired controller with weekly timer functionality, giving users greater control over operating schedules and comfort settings.
7-Year Manufacturer Warranty
Carrier backs the QSM Series with a 7-year manufacturer warranty for added peace of mind when professionally installed and maintained.
Ideal Applications
- Large open-plan living areas
- Family rooms
- Multi-room homes
- Offices
- Retail spaces
- Light commercial premises
Why Choose the Carrier 7.1kW Slim Ducted System?
The Carrier 42QSM070D8S / 38QSM070D8S is a compact yet powerful ducted solution designed for medium to large spaces that need efficient, year-round climate control. With its slim indoor profile, inverter technology, strong airflow, and built-in drain pump, it is an excellent option for larger homes and commercial projects where ceiling space may be limited.
