SplitAtlas

Fujitsu / AIRSTAGE Orion XLTH+

Fujitsu AIRSTAGE Orion XLTH+ 15k XLTH R-32 Mini-Split

Certified capacity
14,500 BTU/h[1]
SEER2
28.7 SEER2[3]
Heating floor
-22 F[1]
Voltage
208/230V[1]
Install path
Professional install

The Orion XLTH+ 15k is the largest of Fujitsu's cold-climate flagship single-zones: SEER2 28.7, EER2 15.4, HSPF2 13, rated to -22F, delivering an exceptional 18,400 BTU of heat at 5F. Efficiency steps down slightly from the smaller models (expected as capacity grows) but remains class-leading, and the extreme-cold heating is the strongest in this size range.

1 zoneProfessional installCurrent

Refrigerant generation

R-32 - current-generation refrigerant

Error Codes
Fujitsu AIRSTAGE Orion XLTH+ 15,000 BTU R-32 (ASUH15KTAS / AOUH15KTAP1)

Image: Fujitsu

Data completeness: 100%
Last sourced
Jul 22, 2026

SplitAtlas score

9.5 / 10

Methodology
Cooling efficiencyTop 10%

(28.7 SEER2) among 12k systems

Heating efficiencyTop 10%

(13.0 HSPF2) among 12k systems

Cold-weather performanceTop 10%

(100% heat retained at 5F; -22 F heating floor) among 12k systems

NoiseTop 10%

(-46 dBA indoor min / 51 dBA outdoor) among 12k systems

WarrantyTop quartile

(12 yr parts / 12 yr compressor) across the catalogue

Feature setBelow average

(3 verified features) across the catalogue

Documentation & partsTop quartile

(8 manuals; spec sheet; parts channel) across the catalogue

Not evaluated

  • Installation accessibility — not applicable (professional install)N/A

    professional install - DIY-accessibility not applicable

  • Price-to-value — not evaluatedN/A

    quote-only - no retail price to evaluate

Key ratings

Rated cooling

14,500BTU/h[1]

Rated heating

17,400BTU/h[1]

Best-fit use cases

A large room or small open area in a cold or extreme-cold climate where a buyer wants maximum heating capability and efficiency in one professionally installed unit.

Where this system ranks

Buyer review snapshot

Best for / skip if

Best for

  • Top efficiency shortlists; SEER2 is 28.7.

Install difficulty

Professional install
  • Electrical: 208/230V; MCA 19.4 A; breaker/fuse 20 A.
  • Line set: connection type not sourced; precharged 49 ft; max 66 ft.

Availability and price context

We could not verify a current retail price for this model. We could not find this exact model in stock at a retailer we work with when we last checked on 2026-07-22.

Purchase channel policy

Fujitsu/GENERAL says online retail sales of its products are not authorized; buyers should treat public online carts as outside the approved purchase channel.

Warranty consequence
Warranty becomes null and void for online purchases.
Authorized channel
Authorized local distributor or contractor channel; password-protected distributor sites are for qualified technicians.

Any online offer for this brand should be treated as a warranty-risk warning, not a recommendation.

Compare online-purchase warranty rules by brand

Source: Fujitsu General America, Inc.: GENERAL AIRSTAGE MINI-SPLITS FAQ - online purchase policy; retrieved Aug 12, 2026.

Source date

Model data sourced
Jul 22, 2026
Page reviewed
Jul 22, 2026
Source-backed records
5
Newest source retrieved
Jul 22, 2026

Warranty tiers

Warranty: 12 years parts and compressor if Fujitsu Elite contractor installation and registration.

Review methodology

Model context

Install path
This is professional-install equipment; no verified current retail offer is attached. Brand purchase-channel policy is shown in the buyer review snapshot.

Strengths

  • SEER2 28.7 / HSPF2 13 - still among the top efficiency in the catalog at this capacity.
  • Rated heating to -22F with 18,400 BTU of heat at 5F - outstanding cold-climate output.
  • R-32, ENERGY STAR certified, 10-year parts / 10-year compressor warranty.

Weaknesses

  • Best value only in genuinely cold climates - milder regions can get comfort for far less.

Climate suitability

Minimum heating ambient
-22 F[1]
Rated heating at 5F
18,400 BTU/h[3]
Rated heating at 17F
10,800 BTU/h[3]
Rated heating at 47F
17,400 BTU/h[1]

Specifications

Show
Manufacturer
Fujitsu
Brand
Fujitsu
Product line
AIRSTAGE Orion XLTH+
Model number
ASUH15KTAS indoor / AOUH15KTAP1 outdoor
Indoor unit model
ASUH15KTAS
Outdoor unit model
AOUH15KTAP1
Number of zones
1
Max indoor units
not published
Rated cooling capacity
14,500 BTU/h[1]
Rated heating capacity
17,400 BTU/h[1]
Voltage
208/230V[1]
MCA
19.4 A[1]
Maximum fuse or breaker size
20 A[1]
Breaker needed
not published
SEER2
28.7 SEER2[3]
EER2
15.4 EER2[3]
HSPF2 (Region 4)
13 HSPF2[3]
HSPF2 (Region 5)
not published
COP
not published
COP at 47F
4.72 COP[1]
COP at 5F
2.52 COP[3]
Minimum outdoor heating temperature
-22 F[1]
Minimum outdoor cooling temperature
14 F[1]
Maximum outdoor temperature
122 F[1]
Indoor noise range
cooling 26-45; heating 26-46 dB(A)[1]
Outdoor noise rating
51 dBA[1]
Indoor weight
31 lb[1]
Outdoor weight
97 lb[1]
Refrigerant
R-32[1]
Refrigerant charge
49 oz[1]
Manufacturer coverage
not published
Line-set size
1/4 in liquid / 3/8 in suction
Included line-set length
Fujitsu publishes factory pre-charge length and flared line sizes; the installer supplies the line set.
Maximum line-set length
66 ft[1]
Max line set per indoor
not published
Maximum elevation difference
49 ft[1]
Max height between indoor units
not published
Wi-Fi support
supported[1]
Energy Star status
ENERGY STAR certified[4]
AHRI certification number
216018257[1]
Warranty
Best case: 12 yr parts / 12 yr compressor (Fujitsu Elite contractor installation and registration). 10-year parts and compressor warranty when registered within 60 days for residential installation; 12-year parts and compressor tier when installed by a Fujitsu Elite contractor.
Install path
Professional install
Retail price
We could not find this exact model in stock at a retailer we work with when we last checked on 2026-07-22.
Available retailers
not published
Manual links
AHRI Directory record 216018257 for ASUH15KTAS / AOUH15KTAP1, ENERGY STAR record 3723088 for ASUH15KTAS / AOUH15KTAP1, AOUH15KTAP1 installation manual, ASUH15KTAS installation manual, Fujitsu Connect product record AOUH15KTAP1, Fujitsu Connect product record ASUH15KTAS, AIRSTAGE Orion XLTH+ wall-mounted R-32 product page, ASUH15KTAS / AOUH15KTAP1 submittal
Specification sheet
ASUH15KTAS / AOUH15KTAP1 submittal
Last sourced date
Jul 22, 2026

Parts and filters

Fits Fujitsu AIRSTAGE Orion XLTH+ 15,000 BTU R-32 (ASUH15KTAS / AOUH15KTAP1). Part numbers and fit notes identify compatibility only; no manufacturer endorsement is implied.

filter-set

Fujitsu Apple-Catechin and ion deodorizing filter set

Fits
Fujitsu AIRSTAGE Orion XLTH+ 15,000 BTU R-32 (ASUH15KTAS / AOUH15KTAP1)
Fit note
Fits ASUH15KTAS / AOUH15KTAP1. The submittal names the dual-action filtration set but does not publish separate orderable filter part numbers in the sourced table. Source through Fujitsu support or an authorized dealer with the model and serial number.
Source
Fujitsu AIRSTAGE ASUH09KTAS / AOUH09KTAP1 Submittal, Features, page p. 1 (Dual-action Filtration: Apple-Catechin Filter & Ion Deodorizing Filter)

wired-controller

Fujitsu touch panel wired remote controller

Fits
Fujitsu AIRSTAGE Orion XLTH+ 15,000 BTU R-32 (ASUH15KTAS / AOUH15KTAP1)
OEM part number
UTY-RNRUZ5
Fit note
Fits ASUH15KTAS / AOUH15KTAP1. Manufacturer documentation publishes this OEM part number for this model family. t255 lookup on 2026-08-12 checked HVACDirect exact/search results, Amazon exact-listing search, public exact-part search, and Fujitsu/GENERAL's online-sales FAQ; no public exact destination with a current price from HVACDirect, Amazon, or a Fujitsu-authorized online parts seller was found. HVACDirect direct fetches were Cloudflare-blocked where exact pages existed, and Fujitsu/GENERAL's own FAQ says public online retail sales are not authorized. Source through an authorized Fujitsu contractor/distributor with the model and serial number.
Source
Fujitsu AIRSTAGE ASUH09KTAS / AOUH09KTAP1 Submittal, ACCESSORIES, page p. 4 (UTY-RNRUZ5*1 Touch Panel Wired Remote Controller)

simple-wired-remote

Fujitsu simple wired remote with mode function

Fits
Fujitsu AIRSTAGE Orion XLTH+ 15,000 BTU R-32 (ASUH15KTAS / AOUH15KTAP1)
OEM part number
UTY-RSRY
Fit note
Fits ASUH15KTAS / AOUH15KTAP1. Manufacturer documentation publishes this OEM part number for this model family. t255 lookup on 2026-08-12 checked HVACDirect exact/search results, Amazon exact-listing search, public exact-part search, and Fujitsu/GENERAL's online-sales FAQ; no public exact destination with a current price from HVACDirect, Amazon, or a Fujitsu-authorized online parts seller was found. HVACDirect direct fetches were Cloudflare-blocked where exact pages existed, and Fujitsu/GENERAL's own FAQ says public online retail sales are not authorized. Source through an authorized Fujitsu contractor/distributor with the model and serial number.
Source
Fujitsu AIRSTAGE ASUH09KTAS / AOUH09KTAP1 Submittal, ACCESSORIES, page p. 4 (UTY-RSRY*1 Simple Wired Remote (With Mode Function))

communication-kit

Fujitsu wall-mount communication kit

Fits
Fujitsu AIRSTAGE Orion XLTH+ 15,000 BTU R-32 (ASUH15KTAS / AOUH15KTAP1)
OEM part number
UTY-TWRXZ4
Fit note
Fits ASUH15KTAS / AOUH15KTAP1. Manufacturer documentation publishes this OEM part number for this model family. t255 lookup on 2026-08-12 checked HVACDirect exact/search results, Amazon exact-listing search, public exact-part search, and Fujitsu/GENERAL's online-sales FAQ; no public exact destination with a current price from HVACDirect, Amazon, or a Fujitsu-authorized online parts seller was found. HVACDirect direct fetches were Cloudflare-blocked where exact pages existed, and Fujitsu/GENERAL's own FAQ says public online retail sales are not authorized. Source through an authorized Fujitsu contractor/distributor with the model and serial number.
Source
Fujitsu AIRSTAGE ASUH09KTAS / AOUH09KTAP1 Submittal, ACCESSORIES, page p. 4 (UTY-TWRXZ4 Communication Kit - Wall Mount)

thermostat-interface

Fujitsu 24V thermostat interface

Fits
Fujitsu AIRSTAGE Orion XLTH+ 15,000 BTU R-32 (ASUH15KTAS / AOUH15KTAP1)
OEM part number
UTY-TTRXZ1
Fit note
Fits ASUH15KTAS / AOUH15KTAP1. Manufacturer documentation publishes this OEM part number for this model family. t255 lookup on 2026-08-12 checked HVACDirect exact/search results, Amazon exact-listing search, public exact-part search, and Fujitsu/GENERAL's online-sales FAQ; no public exact destination with a current price from HVACDirect, Amazon, or a Fujitsu-authorized online parts seller was found. HVACDirect direct fetches were Cloudflare-blocked where exact pages existed, and Fujitsu/GENERAL's own FAQ says public online retail sales are not authorized. Source through an authorized Fujitsu contractor/distributor with the model and serial number.
Source
Fujitsu AIRSTAGE ASUH09KTAS / AOUH09KTAP1 Submittal, ACCESSORIES, page p. 4 (UTY-TTRXZ1*1, 2 24V Thermostat Interface)

external-io-pcb

Fujitsu external input and output PCB

Fits
Fujitsu AIRSTAGE Orion XLTH+ 15,000 BTU R-32 (ASUH15KTAS / AOUH15KTAP1)
OEM part number
UTY-XCSXZ3
Fit note
Fits ASUH15KTAS / AOUH15KTAP1. Manufacturer documentation publishes this OEM part number for this model family. t255 lookup on 2026-08-12 checked HVACDirect exact/search results, Amazon exact-listing search, public exact-part search, and Fujitsu/GENERAL's online-sales FAQ; no public exact destination with a current price from HVACDirect, Amazon, or a Fujitsu-authorized online parts seller was found. HVACDirect direct fetches were Cloudflare-blocked where exact pages existed, and Fujitsu/GENERAL's own FAQ says public online retail sales are not authorized. Source through an authorized Fujitsu contractor/distributor with the model and serial number.
Source
Fujitsu AIRSTAGE ASUH09KTAS / AOUH09KTAP1 Submittal, ACCESSORIES, page p. 4 (UTY-XCSXZ3 External input and output PCB)
Replacement Parts & Filters

Electrical requirements

Show
Voltage
not published
Voltage range
208/230V[1]
Phase
1[2]
Frequency
60 Hz[1]
MCA
19.4 A[1]
Breaker needed
not published
Maximum breaker size
20 A[1]
Maximum fuse size
not published
Maximum cooling current
not published
Maximum heating current
not published
Manufacturer wire notes
not published

Installation considerations

Show
Liquid line
1/4 in[1]
Suction line
3/8 in[1]
Line connection type
not published
Precharged length
49 ft[1]
Included line-set length
Fujitsu publishes factory pre-charge length and flared line sizes; the installer supplies the line set.
Maximum line-set length
66 ft[1]
Max line set per indoor
not published
Max height between indoor units
not published
Indoor dimensions
11-5/8 x 35-3/16 x 11 in[1]
Outdoor dimensions
28-3/16 x 32-5/16 x 12-3/8 in[1]
Indoor weight
31 lb[1]
Outdoor weight
97 lb[1]
Drain size
17/32 in I.D.; 5/8 to 21/32 in O.D.[1]

Related systems and guides

Frequently asked questions

Can I install the Fujitsu AIRSTAGE Orion XLTH+ 15,000 BTU R-32 (ASUH15KTAS / AOUH15KTAP1) myself, or do I need a pro?
Fujitsu AIRSTAGE Orion XLTH+ 15,000 BTU R-32 (ASUH15KTAS / AOUH15KTAP1) is built for professional installation: the line set must be flared, evacuated, and charged, which requires EPA-certified refrigerant handling. Installing it outside the manufacturer's requirements can void the warranty, so budget for a qualified HVAC installer.
Will the Fujitsu AIRSTAGE Orion XLTH+ 15,000 BTU R-32 (ASUH15KTAS / AOUH15KTAP1) keep heating in a cold winter?
The manufacturer publishes 18,400 BTU/h of heating output at 5F. Rated heating operation extends down to -22 F. Certified heating efficiency is 13 HSPF2. Match those numbers against your climate's design temperature - in cold regions, output at 5F matters far more than the nameplate capacity measured at 47F.
What electrical circuit does the Fujitsu AIRSTAGE Orion XLTH+ 15,000 BTU R-32 (ASUH15KTAS / AOUH15KTAP1) need?
Published electrical requirements: 208/230V voltage, 19.4 A minimum circuit ampacity, and 20 A maximum breaker or fuse sizing. Confirm the final circuit against the unit nameplate and local code with a licensed electrician.
How far can the outdoor unit be from the indoor head?
The published maximum line-set length is 66 ft, and the included line set comes pre-charged for 49 ft. Longer runs than the included set allows typically mean added refrigerant and a pro visit, so measure the planned routing before ordering.
What warranty does the Fujitsu AIRSTAGE Orion XLTH+ 15,000 BTU R-32 (ASUH15KTAS / AOUH15KTAP1) carry?
The manufacturer publishes these warranty tiers: Best case: 12 yr parts / 12 yr compressor (Fujitsu Elite contractor installation and registration). Registration requirements and proof of qualified installation commonly affect coverage, so read the warranty terms before install day.

Data sources

Show
  1. Fujitsu General America, Inc.: ASUH15KTAS & AOUH15KTAP1 submittalSourced - manufacturer technical document

    Covers Frequency, electrical_spec.guaranteed_voltage_range, Maximum breaker size, Minimum circuit ampacity, Voltage range, Drain size and more

  2. Fujitsu General America, Inc.: AOUH15KTAP1 installation manualSourced - manufacturer technical document

    Covers Phase

  3. AHRI: AHRI Directory Air-Source Heat Pumps record ref 216018257Sourced - AHRI directory

    Covers COP at 5F, EER2, HSPF2 (Region 4), Rated heating at 17F, Rated heating at 5F, SEER2

  4. U.S. Environmental Protection Agency ENERGY STAR: ENERGY STAR Certified Air-Source Heat Pumps record 3723088Sourced - Energy Star listing

    Covers Energy Star status

  5. Fujitsu General America, Inc.: AIRSTAGE Orion XLTH+ wall-mounted R-32 product pageSourced - manufacturer product page

    Covers Best-case compressor warranty, Best-case warranty conditions, Best-case parts warranty, Legacy compressor warranty value, Legacy warranty value, Warranty notes

Last updated

Jul 22, 2026