Circular cassette indoor unit

Fujitsu Circular cassette indoor unit AIRSTAGE Centauri KUAS1U KUAS1U & KUAH1U

Fujitsu AIRSTAGE single-room mini-split systems Circular cassette indoor unit Repair, maintenance, and replacement planning

Technical Specifications

Product Specs

Series code: KUAS1U & KUAH1U
Size (kBTU/h): 18, 24, 30, 36, 42, 48
Sound Level: As low as 28dB
SEER2: As high as 26.3 BTU/hW
HSPF2: As high as 11.4 BTU/hW
Energy Star: Yes (on select models)
Cooling Operating Range: -5°F to 122°F (-21°C to 50°C)
Heating Operation Range: -15°F to 75°F (-26°C to 24°C) -5°F to 75°F (-21°C to 24°C) Standard
Listed model: AUUH18KUAS 18,000 BTU/h 1.5-Ton Large Cassette Circular Flow Indoor Unit
Listed model: 18,000 BTU/h 1.5-Ton Large Cassette Circular Flow Indoor Unit Compatible Outdoor Units AOUH18KUAS1 18,000 BTU/h 1.5-Ton Universal Outdoor Unit AUUH24KUAS 24,000 BTU/h 2-Ton Large Cassette Circular Flow Indoor Unit
Listed model: 24,000 BTU/h 2-Ton Large Cassette Circular Flow Indoor Unit Compatible Outdoor Units AOUH24KUAS1 24,000 BTU/h 2-Ton Universal Outdoor Unit AUUH30KUAS 30,000 BTU/h 2.5-Ton Large Cassette Circular Flow Indoor Unit (Also available in )
Listed model: 30,000 BTU/h 2.5-Ton Large Cassette Circular Flow Indoor Unit Compatible Outdoor Units AOUH30KUAS1 30,000 BTU/h 2.5-Ton Universal Outdoor Unit AOUH30KUAH1 30,000 BTU/h 2.5-Ton XLTH Outdoor Unit AUUH36KUAS 36,000 BTU/h 3-Ton Large Cassette Circular Flow Indoor Unit (Also available in )
Brand: Fujitsu
Model or series: AIRSTAGE Centauri KUAS1U KUAS1U & KUAH1U
Equipment type: Circular cassette indoor unit
Product group: AIRSTAGE single-room mini-split systems
System role: Ductless or mini-split system equipment
Application: Residential, light-commercial, or zone-control comfort applications
Compatibility check: Match with compatible outdoor equipment, controls, airflow, voltage, and capacity before service or replacement.
Verified source: fujitsugeneral.com

Useful troubleshooting details

Confirm the indoor unit model, outdoor unit model, serial number, refrigerant type, and controller type before scheduling.
Share photos of the indoor unit, outdoor unit, disconnect, filters, drain line, controller, and access area.
Note whether the concern is no cooling, no heat, weak airflow, noise, water leak, icing, error code, remote/controller issue, or uneven room comfort.

Service planning

How GreenFlow handles AIRSTAGE Centauri KUAS1U KUAS1U & KUAH1U requests

Identify the equipment

Confirm the model or series name, serial number if available, photos, and whether the unit is roof, exterior, basement, or mechanical-room equipment.

Describe the service issue

Share no heat, no cooling, weak airflow, error codes, alarms, leaks, noise, control problems, or comfort complaints.

Review access and history

Include access notes, tenant or business-hour constraints, filter status, recent repairs, and maintenance records when available.

Plan the next step

GreenFlow can route the request for diagnostics, repair planning, maintenance, replacement scope, or related system upgrades.

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Our Happy Customers

Anna G.

They quickly identified the issue with the heating system and fixed it efficiently. He explained everything clearly and made sure I understood what was going on. Very professional and reliable, extremely satisfied with the service.

Ray

Just had a service call because my tankless water heater stopped working with E110 code. Andrey located the root cause real quick and fixed the issue within half an hour, also gave reasonable recommendations for further maintenance.

Sharad W.

Green Flow and the people who work there are terrific. Vlad and Andre are excellent. Andre was very helpful. He was punctual, respectful, efficient and knowledgeable. He did not try to sell me something I didn’t need ( as others have done before). I was charged $99 which...

Michele Z.

Andrey was professional, prompt, smart, thorough and exceedingly pleasant. We are likely switching our current HVAC company to Green Flow.

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