SplitAtlas

Samsung / WindFree Premium

Samsung WindFree Premium 18k R-32 208/230V Mini-Split

Certified capacity
18,500 BTU/h[2]
SEER2
21 SEER2[2]
Heating floor
-5 F[1]
Voltage
230 V[1]
Install path
Professional install

The WindFree Premium 18k scales Samsung's comfort-first line to 1.5 tons: SEER2 21 / EER2 13.2 / HSPF2 9.7 on R-32, ENERGY STAR certified, with a strong 14,300 BTU of heat at 5F (rated operation to -5F). Efficiency steps down from the smaller models, as expected with capacity, but the WindFree comfort feature carries up the line.

1 zoneProfessional installCurrent

Refrigerant generation

R-32 - current-generation refrigerant

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Error Codes
Samsung WindFree Premium 18,000 BTU R-32 208/230V (AR18DXDABWKN / AR18DXDABWKX)

Image: Samsung

Data completeness: 95%
Last sourced
Jul 23, 2026

SplitAtlas score

8.4 / 10

Methodology
Cooling efficiencyBelow average

(21.0 SEER2) among 18k systems

Heating efficiencyBelow average

(9.7 HSPF2) among 18k systems

Cold-weather performanceBelow average

(71.5% heat retained at 5F; -5 F heating floor) among 18k systems

NoiseTop quartile

(-42 dBA indoor min / 51 dBA outdoor) among 18k systems

Feature setTop 10%

(7 verified features) across the catalogue

Documentation & partsTop quartile

(13 manuals; spec sheet; 51 error-code rows) 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

    This is a professionally installed, quote-only system, so we can't score its price. Get an installed quote to compare real cost.

    Get a quote

Key ratings

Rated cooling

18,500BTU/h[2]

Rated heating

20,000BTU/h[2]

Best-fit use cases

A large living room or open area in a moderate climate where draft-free comfort matters and the buyer wants 1.5 tons from a major brand.

Buyer review snapshot

Install difficulty

Professional install
  • Electrical: 230V; MCA 21 A; breaker/fuse 30 A.
  • Line set: connection type not sourced; precharged 24.6 ft; max 98 ft.

Alternatives

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 2026-07-23.

Source date

Model data sourced
Jul 23, 2026
Page reviewed
Jul 23, 2026
Source-backed records
3
Newest source retrieved
Jul 23, 2026

Review methodology

Strengths

  • WindFree draft-free cooling at 1.5 tons.
  • Strong low-end heat for the class: 14,300 BTU at 5F; ENERGY STAR certified.

Weaknesses

  • SEER2 21 / HSPF2 9.7 - solid but no longer standout; rated only to -5F.
  • Professional installation required; no confirmed online retail price.

Climate suitability

Minimum heating ambient
-5 F[1]
Rated heating at 5F
14,300 BTU/h[2]
Rated heating at 17F
17,500 BTU/h[2]
Rated heating at 47F
20,000 BTU/h[2]

Specifications

Show
Manufacturer
Samsung
Brand
Samsung
Product line
WindFree Premium
Model number
AR18DXDABWKN indoor / AR18DXDABWKX outdoor
Indoor unit model
AR18DXDABWKN
Outdoor unit model
AR18DXDABWKX
Number of zones
1
Max indoor units
not published
Rated cooling capacity
18,500 BTU/h[2]
Rated heating capacity
20,000 BTU/h[2]
Voltage
230 V[1]
MCA
21 A[1]
Maximum fuse or breaker size
30 A[1]
Breaker needed
not published
SEER2
21 SEER2[2]
EER2
13.2 EER2[2]
HSPF2 (Region 4)
9.7 HSPF2[2]
HSPF2 (Region 5)
not published
COP
not published
COP at 47F
not published
COP at 5F
2.05 COP[2]
Minimum outdoor heating temperature
-5 F[1]
Minimum outdoor cooling temperature
14 F[1]
Maximum outdoor temperature
115 F[1]
Indoor noise range
25-42 dB(A)[1]
Outdoor noise rating
51 dBA[1]
Indoor weight
27.3 lb[1]
Outdoor weight
150.4 lb[1]
Refrigerant
R-32[1]
Refrigerant charge
70.6 oz[1]
Manufacturer coverage
not published
Line-set size
1/4 in liquid / 1/2 in suction
Included line-set length
Samsung WindFree Premium professional-install submittal publishes refrigerant line sizes, precharged length, and maximum line limits, but no included line set.
Maximum line-set length
98 ft[1]
Max line set per indoor
not published
Maximum elevation difference
66 ft[1]
Max height between indoor units
not published
Wi-Fi support
supported[1]
Energy Star status
ENERGY STAR certified[3]
AHRI certification number
215222787[2]
Warranty
not published
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 2026-07-23.
Available retailers
not published
Manual links
AHRI certificate 215222787, AHRI public directory record 215222787, ENERGY STAR record 3554506 for AR18DXDABWKX / AR18DXDABWKN, HVACDirect exact Samsung WindFree Premium 18k/24k model search summary, Samsung R-32 high-wall installation manual, Samsung WindFree Premium document page snapshot, Samsung S3 product JSON for AR18DXDABWKNCV, Samsung S3 product JSON for AR18DXDABWKXCV, Samsung WindFree Premium manufacturer page snapshot, Samsung R-32 high-wall service manual, Samsung WindFree Premium 18k/24k source manifest, Samsung WindFree Premium 18,000 BTU R-32 submittal, Samsung R-32 high-wall technical data book
Specification sheet
Samsung WindFree Premium 18,000 BTU R-32 submittal
Last sourced date
Jul 23, 2026

Electrical requirements

Show
Voltage
230 V[1]
Voltage range
208/230V[1]
Phase
1[1]
Frequency
60 Hz[1]
MCA
21 A[1]
Breaker needed
not published
Maximum breaker size
30 A[1]
Maximum fuse size
not published
Maximum cooling current
not published
Maximum heating current
not published
Manufacturer wire notes
14 AWG x 3 indoor-outdoor power cable; 18-16 AWG 2-conductor shielded control wiring[1]

Installation considerations

Show
Liquid line
1/4 in[1]
Suction line
1/2 in[1]
Line connection type
not published
Precharged length
24.6 ft[1]
Included line-set length
Samsung WindFree Premium professional-install submittal publishes refrigerant line sizes, precharged length, and maximum line limits, but no included line set.
Maximum line-set length
98 ft[1]
Max line set per indoor
not published
Max height between indoor units
not published
Indoor dimensions
41 9/16 x 11 3/4 x 8 7/16 in[1]
Outdoor dimensions
37 x 39 5/16 x 13 in[1]
Indoor weight
27.3 lb[1]
Outdoor weight
150.4 lb[1]
Drain size
11/16 in OD[1]

Related systems and guides

Frequently asked questions

Can I install the Samsung WindFree Premium 18,000 BTU R-32 208/230V (AR18DXDABWKN / AR18DXDABWKX) myself, or do I need a pro?
Samsung WindFree Premium 18,000 BTU R-32 208/230V (AR18DXDABWKN / AR18DXDABWKX) 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 Samsung WindFree Premium 18,000 BTU R-32 208/230V (AR18DXDABWKN / AR18DXDABWKX) keep heating in a cold winter?
The manufacturer publishes 14,300 BTU/h of heating output at 5F. Rated heating operation extends down to -5 F. Certified heating efficiency is 9.7 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 Samsung WindFree Premium 18,000 BTU R-32 208/230V (AR18DXDABWKN / AR18DXDABWKX) need?
Published electrical requirements: 230 V voltage, 21 A minimum circuit ampacity, and 30 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 98 ft, and the included line set comes pre-charged for 24.6 ft. Longer runs than the included set allows typically mean added refrigerant and a pro visit, so measure the planned routing before ordering.

Data sources

Show
  1. Samsung HVAC, LLC: AR18DXDABWKN & AR18DXDABWKX Samsung WindFree Premium submittalSourced - manufacturer technical document

    Covers Frequency, electrical_spec.guaranteed_voltage_range, Maximum breaker size, Minimum circuit ampacity, Phase, Manufacturer wire notes and more

  2. Air-Conditioning, Heating, and Refrigeration Institute: AHRI public detail 215222787 for AR18DXDABWKN / AR18DXDABWKXSourced - AHRI directory

    Covers AHRI certification number, Rated cooling capacity, COP at 5F, EER2, Rated heating capacity, HSPF2 (Region 4) and more

  3. ENERGY STAR Certified Products: ENERGY STAR record 3554506 for AR18DXDABWKX / AR18DXDABWKNSourced - Energy Star listing

    Covers Energy Star status

Last updated

Jul 23, 2026