The Fujitsu ACUH18KUAS is a 18,000 BTU R-32 ceiling cassette indoor unit ideal for spaces up to 750 sq ft. It offers ultra-quiet operation, efficient airflow, built-in drain pump, washable filter, smart controls, and low-ambient heating compatibility.

Unit Type: Indoor Unit
Product Line: KUAS Series
Operating Mode: Cooling & Heating
Low Ambient Heat: N/A
Number of Zones: Multi
System Capacity: 18,000 BTU
Line Set Size: 1/4" x 1/2"
WiFi Enabled: Yes
WiFi Built In: No

Indoor Unit ACUH18KUAS

Nominal Capacity 18,000 BTU
Heating Operating Range 60 - 86 F
Cooling Operating Range 64 - 90 F
Room Cooling/Heating Capacity up to 750 sq ft

INDOOR UNIT:
• Compact cassette indoor unit delivering superior comfort and energy-efficient performance
• Indoor unit with ProCoreTM (High Corrosion Resistant Copper) coils for long-lasting protection
against corrosion
• Whisper-quiet operation with sound levels as low as 29dB
• Multiple fan speed options; Auto, High, Med, Low, and Quiet
• Special Operation modes available:
- Economy Mode/ Energy Saving Mode / Powerful Mode / Minimum Heat Mode / Automatic
defrosting operation / Auto-restart function
• Enhanced controls platform for seamless, intuitive operation:
- Seamless control using the Optional Wireless Remote Controller (UTY-LNTU)
- Optional Wi-Fi connectivity enables remote monitoring through the Airstage Mobile App
- Extended connectivity with support for third-party interface options
- Compatible with BACnet and Modbus protocols for seamless integration with Building
Management and Home Automation Systems
• Advanced scheduling and timer options offer greater control over unit operation:
- Weekly Timer / 24-hr Timer / Sleep Function
• Built-in drain pump for efficient water removal making installation and maintenance easier
• Optional fresh air kit, designed to boost indoor air quality and comfort
• Cassette grille (front panel) fits seamlessly into standard grid-style office ceilings (sold separately)
• Additional premium features include, but are not limited to:
- Built-in external input and output for interlocking systems with 3rd party devices (Ex: Fire
Alarm, Door Switch, Humidifier, Aux. Heat & more)
- Multiple Auxiliary Heat logic options for optimized heating performance
- Service monitoring functionality via compatible accessories (UTY-RVRU & UTY-RNRUZseries)
- Offers group control, allowing seamless management of multiple units simultaneously.

Airflow Cooling CFM: 241-288-341-441
Airflow Heating CFM: 241-288-341-441
Noise Level dB(A), Cooling: 29-33-37-42
Noise Level dB(A), Heating: 30-37-41-44
Size W x D x H: 9-5/8" x 22-7/16" x 22-7/16"
Weight: 35 lbs