Wall-mounted indoor unit

Fujitsu Wall-mounted indoor unit Altair 500 KPAS1

Schedule Service Check Availability

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

Technical Specifications

Product Specs

Series code: KPAS1
Size (kBTU/h): 9, 12, 18, 24, 30, 36
Sound Level: As low as 19dB
SEER2: As high as 26.0 BTU/hW
HSPF2: As high as 10.8 BTU/hW
Energy Star: On select models
Cooling Operating Range: 14°F to 122°F (10°C to 50°C)
Heating Operation Range: 5°F to 75°F (-15°C to 24°C)
Listed model: ASUH09KPAS 9,000 BTU/h 0.75-Ton Wall-Mounted Indoor Unit
Listed model: 9,000 BTU/h 0.75-Ton Wall-Mounted Indoor Unit Compatible Outdoor Units AOUH09KPAS1 9,000 BTU/h 0.75-Ton Compact Outdoor Unit ASUH12KPAS 12,000 BTU/h 1-Ton Wall-Mounted Indoor Unit
Listed model: 12,000 BTU/h 1-Ton Wall-Mounted Indoor Unit Compatible Outdoor Units AOUH12KPAS1 12,000 BTU/h 1-Ton Compact Outdoor Unit ASUH18KPAS 18,000 BTU/h 1.5-Ton Wall-Mounted Indoor Unit
Listed model: 18,000 BTU/h 1.5-Ton Wall-Mounted Indoor Unit Compatible Outdoor Units AOUH18KPAS1 18,000 BTU/h 1.5-Ton Compact Outdoor Unit ASUH24KPAS 24,000 BTU/h 2-Ton Wall-Mounted Indoor Unit
Brand: Fujitsu
Model or series: Altair 500 KPAS1
Equipment type: Wall-mounted 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 Altair 500 KPAS1 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.

Popular cities

Service Areas

Our Happy Customers

Jack B.

Andrey always does a great job.

Neal V.

In an industry that often fraught with contractors taking advantage of homeowners, Andrey was honest with his assessment and willing to install a product acquired elsewhere (most want that margin themselves), patiently answered my questions (I’m an engineer so like to understand what’s happening), and proactively offered practical...

Anna F.

They showed up within an hour of me making the call on a Sunday. They fixed our system and taught us how to replace the fuse in the future. We would definitely call again.

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.

View All