Friedrich / Floating Air Pro X
Friedrich Floating Air Pro X 18k R-454B 208/230V Mini-Split
This 18,000 BTU Pro X brings the flagship's deep-cold recovery to a 1.5-ton head, rated 19.5 SEER2, 11.7 EER2, and 9.5 HSPF2 on R-454B. It heats at 18,000 BTU at 47F, dips to 13,400 BTU at 17F, and returns to a full 18,000 BTU at 5F. In a large cold-climate space, that 5F rebound is what separates it from ordinary heat pumps.
Refrigerant generation
R-454B - current-generation refrigerant
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- Last sourced
- Jul 27, 2026
SplitAtlas score
8.4 / 10
(19.5 SEER2) among 18k systems
(9.5 HSPF2) among 18k systems
(100% heat retained at 5F; -22 F heating floor) among 18k systems
(-48 dBA indoor min / 68 dBA outdoor) among 18k systems
(7 verified features) across the catalogue
(7 manuals; spec sheet) 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.
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Key ratings
Best-fit use cases
A strong choice for a large living area or open zone in a harsh climate where full-rated 5F output matters more than peak seasonal efficiency.
Buyer review snapshot
Install difficulty
- Electrical: 230V; MCA 16 A; breaker/fuse 25 A.
- Line set: connection type not sourced; precharged 25 ft; max 150 ft.
Alternatives
- Blueridge XS6 Max Efficiency 18,000 BTU R-454B 208/230V (BXS6A18WM0 / BXS6A18UC0)
9.0 score / 18k / SEER2 25.6 / -22 F heating floor / 230V
Exact destination at Alpine Home Air: $2,359.00, checked Jul 24, 2026
- Senville ELITE 18,000 BTU R-454B 208/230V (SENE-18EL-IHH / SENE-18EL-OH)
8.9 score / 18k / SEER2 25.6 / -22 F heating floor / 187-253V
Exact destination at Senville: $1,899.99, checked Jul 24, 2026
- ACiQ Standard 18,000 BTU R-454B 208/230V (ACIQ-18WS-HP230C / ACIQ-18ZS-HP230C)
8.8 score / 18k / SEER2 24 / -13 F heating floor / 230V
Exact destination at HVACDirect: $1,299.99, checked Jul 26, 2026
Availability and price context
We could not verify a current retail price for this model. We could not find a published consumer price for this model when we last checked on 2026-07-27.
Source date
- Model data sourced
- Jul 27, 2026
- Page reviewed
- Jul 27, 2026
- Source-backed records
- 3
- Newest source retrieved
- Jul 27, 2026
Strengths
- Recovers to its full 18,000 BTU rating at 5F, so a big room stays fully heated on the coldest days.
- Cold-climate designated and ENERGY STAR certified with low-GWP R-454B.
- Professionally installed and supported by Friedrich's established dealer and warranty network.
Weaknesses
- The 17F dip to 13,400 BTU is significant, so the mid-cold range is noticeably softer than the endpoints.
- Slightly lower SEER2 (19.5) than the Pro line, plus 230V and dealer-only pricing.
Climate suitability
- Minimum heating ambient
- -22 F[1]
- Rated heating at 5F
- 18,000 BTU/h[2]
- Rated heating at 17F
- 13,400 BTU/h[2]
- Rated heating at 47F
- 18,000 BTU/h[2]
Specifications
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- Manufacturer
- Friedrich
- Brand
- Friedrich
- Product line
- Floating Air Pro X
- Model number
- FAHFW18A3D indoor / FPHFR18A3D outdoor
- Indoor unit model
- FAHFW18A3D
- Outdoor unit model
- FPHFR18A3D
- Number of zones
- 1
- Max indoor units
- not published
- Rated cooling capacity
- 18,000 BTU/h[2]
- Rated heating capacity
- 18,000 BTU/h[2]
- Voltage
- 230 V[1]
- MCA
- 16 A[1]
- Maximum fuse or breaker size
- 25 A[1]
- Breaker needed
- not published
- SEER2
- 19.5 SEER2[2]
- EER2
- 11.7 EER2[2]
- HSPF2 (Region 4)
- 9.5 HSPF2[2]
- HSPF2 (Region 5)
- not published
- COP
- not published
- COP at 47F
- not published
- COP at 5F
- 1.8 COP[2]
- Minimum outdoor heating temperature
- -22 F[1]
- Minimum outdoor cooling temperature
- 5 F[1]
- Maximum outdoor temperature
- 125 F[1]
- Indoor noise range
- 36-48 dB(A)[1]
- Outdoor noise rating
- 68 dBA[1]
- Indoor weight
- 34.2 lb[1]
- Outdoor weight
- 97 lb[1]
- Refrigerant
- R-454B[2]
- Refrigerant charge
- 56.4 oz[1]
- Manufacturer coverage
- not published
- Line-set size
- 1/4 in liquid / 1/2 in suction
- Included line-set length
- Friedrich Floating Air professional-install sources publish required refrigerant line-set sizes and allowed min/max lengths, but no included line set.
- Maximum line-set length
- 150 ft[1]
- Max line set per indoor
- not published
- Maximum elevation difference
- 80 ft[1]
- Max height between indoor units
- not published
- Wi-Fi support
- supported[1]
- Energy Star status
- ENERGY STAR certified[3]
- AHRI certification number
- 217269481[2]
- Warranty
- not published
- Install path
- Professional install
- Retail price
- We could not find a published consumer price for this model when we last checked on 2026-07-27.
- Available retailers
- not published
- Manual links
- AHRI public directory record 217269481, ENERGY STAR record 4016077 for FPHFR18A3D / FAHFW18A3D, HVACDirect exact Friedrich Floating Air t78 model search summary, Friedrich Floating Air manufacturer page snapshot, Friedrich Floating Air ductless 2026 brochure, Friedrich Floating Air Pro X single-zone wall-mounted submittal, Friedrich Floating Air ductless warranty
- Specification sheet
- Friedrich Floating Air ductless 2026 brochure
- Last sourced date
- Jul 27, 2026
Electrical requirements
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Installation considerations
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- Liquid line
- 1/4 in[1]
- Suction line
- 1/2 in[1]
- Line connection type
- not published
- Precharged length
- 25 ft[1]
- Included line-set length
- Friedrich Floating Air professional-install sources publish required refrigerant line-set sizes and allowed min/max lengths, but no included line set.
- Maximum line-set length
- 150 ft[1]
- Max line set per indoor
- not published
- Max height between indoor units
- not published
- Indoor dimensions
- 45-2/8 x 13-2/8 x 10-1/8 in[1]
- Outdoor dimensions
- 33-7/8 x 26-3/8 x 12-1/4 in[1]
- Indoor weight
- 34.2 lb[1]
- Outdoor weight
- 97 lb[1]
- Drain size
- not published
Related systems and guides
- More Friedrich systems
- Friedrich sibling model
- Floating Air Pro X 18k
- Della Vita Series Multi-Zone 18k 230V
- Friedrich Floating Air Select 18k 230V
- Guide library
- Mini split buying guide
- Single-zone vs multi-zone mini splits
- Troubleshooting
- Do mini splits work in cold weather?
- The best 18,000 BTU mini splits of 2026
- The best cold-climate mini splits of 2026
- The best mini splits for heating of 2026
- Mini split heating capacity in the cold: what your unit actually delivers at 5F
- The mini split defrost cycle, explained
- The best DIY mini splits of 2026
- What "DIY mini split" actually means
- How to install a mini split (DIY overview)
- R-32 vs R-454B: the mini split refrigerant change explained
- Mini split not heating
- Mini split indoor unit freezing up
- Mini split remote not working
- Mini split condensate pump problems
- Mini split Wi-Fi not connecting
- Line sets
- Line-set covers
Frequently asked questions
- Can I install the Friedrich Floating Air Pro X 18,000 BTU R-454B 208/230V (FAHFW18A3D / FPHFR18A3D) myself, or do I need a pro?
- Friedrich Floating Air Pro X 18,000 BTU R-454B 208/230V (FAHFW18A3D / FPHFR18A3D) 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 Friedrich Floating Air Pro X 18,000 BTU R-454B 208/230V (FAHFW18A3D / FPHFR18A3D) keep heating in a cold winter?
- The manufacturer publishes 18,000 BTU/h of heating output at 5F. Rated heating operation extends down to -22 F. Certified heating efficiency is 9.5 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 Friedrich Floating Air Pro X 18,000 BTU R-454B 208/230V (FAHFW18A3D / FPHFR18A3D) need?
- Published electrical requirements: 230 V voltage, 16 A minimum circuit ampacity, and 25 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 150 ft, and the included line set comes pre-charged for 25 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
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- Friedrich Air Conditioning Co.: FAHFW24A3D & FPHFR24A3D Friedrich Floating Air Pro X specificationsSourced - manufacturer technical document
Covers Frequency, Maximum breaker size, Maximum fuse size, Minimum circuit ampacity, Phase, Manufacturer wire notes and more
- AHRI certificate #217269481 - search the AHRI DirectorySourced - AHRI directory
Covers AHRI certification number, Rated cooling capacity, COP at 5F, EER2, Rated heating capacity, HSPF2 (Region 4) and more
- U.S. Environmental Protection Agency ENERGY STAR: ENERGY STAR record 4016077 for FPHFR18A3D / FAHFW18A3DSourced - Energy Star listing
Covers Energy Star status
Last updated
Jul 27, 2026