Fujitsu AUUH24KUAS & AOUH24KUAS1 – 24,000 BTU R-32 Ceiling Cassette Mini-Split System

The Fujitsu AUUH24KUAS and AOUH24KUAS1 ceiling cassette system delivers quiet, efficient comfort with advanced air distribution features. Designed for residential or light commercial applications up to ~1,000 sq ft, this ENERGY STAR® certified system uses low-GWP R-32 refrigerant and offers circular airflow, flexible controls, and a compact, corrosion-resistant design for long-lasting performance.

General Information

• System Type: Four-way ceiling cassette mini-split (indoor & outdoor)

• Indoor Model: AUUH24KUAS

• Outdoor Model: AOUH24KUAS1

• Capacity: 24,000 BTU Heating & Cooling

• Room Size: Ideal for up to ~1,000 sq ft

• Operating Modes: Heating & Cooling

• ENERGY STAR®: Yes (ES, ESCC, ESME

• Refrigerant: R-32, pre-charged; supports up to 164 ft line set

Key Features

• Circular-Flow Cassette: Provides even air distribution in all directions for superior comfort

• Quiet Operation: Indoor sound levels as low as 30 dB(A

• Flexible Fan Speeds: Auto, High, Med, Low, and Quiet settings

• Smart Comfort Modes: Economy, Powerful, Minimum Heat, Auto Restart, Cold Air Prevention, Auto Defrost

• Advanced Controls: Compatible with IR, wired, Wi-Fi (Airstage Mobile App), BACnet, Modbus, and 24V thermostat interfaces

• Safety & Integration: Built-in I/O for fire alarms, humidifiers, aux heat, door switches, and monitoring sensors

• Air Quality Options: Supports optional fresh air kit and human occupancy sensor

• Corrosion Protection: ProCore™ high-resistance copper coils and Blue Fin outdoor coating

• Installation Flexibility: Built-in drain pump, extended piping lengths, zero-clearance cassette grille options (white/black)

Specifications (Rated Conditions)

• Cooling Capacity (Rated/Min–Max): 24,000 BTU / 5,400 – 28,000 BTU

• Heating Capacity (Rated/Min–Max): 27,000 BTU / 5,400 – 32,000 BTU

• SEER2 / EER2: 23.2 / 13.1

• HSPF2 (IV/V): 11.0 / 8.5

• Sound Pressure (Indoor): 30–36 dB(A)

• Sound Pressure (Outdoor): 52–54 dB(A)

• Airflow (Cooling/Heating): Up to 2,187 CFM (3,715 m³/h)

• Electrical: 208/230 V • 1-Phase • 60 Hz

• Piping Size: Liquid 1/4″ • Gas 1/2″ • Max Length: 164 ft • Max Height Diff: 98 ft

• Indoor Unit Dimensions/Weight: 33-1/16″ × 33-1/16″ × 9-11/16″ • 53 lb

• Outdoor Unit Dimensions/Weight: 37″ × 31″ × 12-5/8″ • 115 lb

Included Components

• AUUH24KUAS circular-flow cassette indoor unit

• AOUH24KUAS1 outdoor condenser