Fujitsu ABUH18KUAS & AOUH18KUAS1 18,000 BTU 23.4 SEER2 Ceiling Suspended Heat Pump System - R32

Fujitsu ABUH18KUAS & AOUH18KUAS1 – 18,000 BTU R‑32 Ceiling-Suspended Mini‑Split System
The Fujitsu ABUH18KUAS and AOUH18KUAS1 mini-split system delivers powerful, discreet comfort through a compact ceiling-suspended indoor unit. Ideal for small to mid-sized spaces up to ~750 sq ft, this ENERGY STAR® system uses eco-friendly R‑32 refrigerant and features ProCore™ copper coils, multiple fan speeds, and advanced control compatibility for flexible, quiet operation in a wide range of environments.

General Information
System Type: Ceiling-suspended mini-split system (indoor & outdoor)
Indoor Model: ABUH18KUAS
Outdoor Model: AOUH18KUAS1
Capacity: 18,000 BTU Heating & Cooling
Room Size: Ideal for up to ~750 sq ft
Operating Modes: Heating & Cooling
ENERGY STAR®: Yes (ES, ESCC, ESME)
Refrigerant: R‑32, pre-charged; supports up to 98 ft line set

Key Features
Ceiling-Suspended Design: Flexible installation with a low-profile, high-performance form factor
Quiet Operation: Indoor sound levels as low as 31 dB(A) for discreet comfort
Multiple Modes: Economy, Powerful, Minimum Heat, Auto Restart, Defrost
Optional Drain Pump: Enables efficient condensate removal
Enhanced Control Options: Compatible with IR, wired, Wi-Fi, BACnet, Modbus & 24V thermostats (accessories sold separately)
Smart Scheduling: Weekly/24-hour timers, sleep function
Advanced Connectivity: Built-in I/O for interlocking with alarms, switches, and auxiliary heat
Durable & Efficient: ProCore™ copper coils and INVERTER-driven compressor for long-lasting performance

Specifications (Rated Conditions)
Cooling Capacity (Rated/Min–Max): 18,000 BTU / 3,100 – 20,100 BTU
Heating Capacity (Rated/Min–Max): 21,600 BTU / 3,100 – 25,600 BTU
SEER2 / EER2: 23.4 / 12.9
HSPF2 (IV/V): 11.2 / 8.7
Sound Pressure (Indoor): 31–38 dB(A)
Sound Pressure (Outdoor): 52–55 dB(A)
Airflow (Cooling/Heating): Up to 494 CFM (840 m³/h)
Electrical: 208/230 V • 1‑Phase • 60 Hz
Piping Size: Liquid 1/4″ • Gas 1/2″ • Max Length: 98 ft • Max Height Diff: 49 ft
Indoor Unit Dimensions/Weight: 9-1/4″ × 42-1/2″ × 27-3/4″ • 53 lb
Outdoor Unit Dimensions/Weight: 24-7/8″ × 31-7/16″ × 11-7/16″ • 84 lb

Included Components
ABUH18KUAS ceiling-suspended indoor unit
AOUH18KUAS1 outdoor condenser

Ideal For
Installers, designers, and homeowners needing a compact ceiling-suspended HVAC solution with advanced control flexibility. Great for offices, shops, classrooms, and rooms with limited wall space.