The Carrier 42QSH125D8S-1 / 38QSH125D8S-1 12.0kW Inverter High Static Ducted Air Conditioner is a premium high-capacity ducted solution designed for large homes, multi-room properties, offices, and light commercial applications. With a concealed indoor unit, powerful static pressure, and inverter technology, it delivers reliable year-round comfort across multiple zones while remaining hidden within the ceiling space.
With 12.0kW cooling and 12.25kW heating capacity, this model is ideal for large open-plan homes, multi-storey properties, offices, retail spaces, and commercial areas around 70–110m² depending on insulation and layout. The inverter compressor can modulate output from 4.08kW up to 16.43kW in cooling mode and 3.33kW up to 18.42kW in heating mode, helping improve efficiency and temperature stability.
Key Features & Benefits
High Static Pressure Performance
The QSH Series delivers up to 200Pa external static pressure, making it suitable for longer duct runs, multiple outlets, and more complex duct layouts across larger homes and commercial spaces. Carrier’s constant air volume technology helps maintain strong airflow even when duct pressure changes.
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.
Powerful Airflow Performance
The indoor unit delivers airflow up to 985 litres per second on high speed, helping distribute conditioned air evenly throughout larger homes and commercial spaces. This makes it ideal for larger duct networks and multi-room applications.
Long Pipe Run Capability
The system supports pipe lengths up to 75 metres and height differences up to 30 metres, making it ideal for multi-storey homes, larger commercial fit-outs, and more complex installations.
Large Indoor Unit with Concealed Installation
The indoor unit measures approximately 1200mm wide, 625mm deep, and 380mm high, while the outdoor unit measures approximately 952mm wide, 415mm deep, and 1333mm high. Despite its large capacity, the system remains fully concealed in the ceiling space for a cleaner appearance throughout the home.
Quiet Operation
Despite its size and output, the QSH Series is designed for relatively quiet performance, with outdoor sound power rated around 70dBA on high speed.
Wide Operating Temperature Range
The system can operate in cooling mode from 0°C to 50°C outdoor temperature and in heating mode from -20°C to 24°C, making it suitable for Australian climates year-round.
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 220–240V single-phase power, making it suitable for many residential and commercial installations without requiring three-phase power.
Wired Controller Included
The system includes a wired controller as standard, giving users simple and reliable control over operating schedules and comfort settings.
5-Year Manufacturer Warranty
Carrier high static ducted systems are backed by a 5-year manufacturer warranty when professionally installed and maintained according to manufacturer guidelines.
Ideal Applications
- Large open-plan homes
- Multi-room and multi-storey houses
- Offices
- Retail spaces
- Commercial premises
- Large family homes
Why Choose the Carrier 12.0kW High Static Ducted System?
The Carrier 42QSH125D8S-1 / 38QSH125D8S-1 is a powerful and flexible ducted solution designed for large spaces that need strong airflow, long duct runs, and reliable year-round climate control. With its 200Pa static pressure, inverter technology, constant air volume control, and large-capacity performance, it is an excellent option for larger homes and commercial projects.
