Friedrich / Floating Air Pro
Friedrich Floating Air Pro 18k R-454B 208/230V Mini-Split
This 18,000 BTU Pro is a 230V workhorse rated 21 SEER2 with a notably good 12.95 EER2 and 10 HSPF2, running R-454B. Its defining trait is a rock-steady heating curve: 18,000 BTU at 47F, 17F, and 5F without any drop. For a 1.5-ton cold-climate zone, that flat output is a serious advantage.
1 zoneProfessional installCurrent
Refrigerant generation
R-454B - current-generation refrigerant
Need this installed?
Get installation quotesData completeness: 92%
- Last sourced
- Jul 27, 2026
SplitAtlas score
9.0 / 10
Cooling efficiencyBelow average
(21.0 SEER2) among 18k systems
Heating efficiencyAbove average
(10.0 HSPF2) among 18k systems
Cold-weather performanceTop quartile
(100% heat retained at 5F; -13 F heating floor) among 18k systems
NoiseTop quartile
(-48 dBA indoor min / 58 dBA outdoor) among 18k systems
WarrantyAbove average
(7 yr parts / 10 yr compressor) across the catalogue
Feature setTop 10%
(7 verified features) across the catalogue
Documentation & partsTop quartile
(8 manuals; spec sheet; 35 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
Buyer review snapshot
Install difficulty
Professional install
- Electrical: 230V; MCA 20 A; breaker/fuse 20 A.
- Line set: connection type not sourced; precharged 24.6 ft; max 98.4 ft.
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 23, 2026
- Source-backed records
- 4
- Newest source retrieved
- Jul 23, 2026
Warranty tiers
Warranty: 7 years parts and 10 years compressor if the system is registered.
Strengths
- Completely flat heat delivery all the way to 5F, so capacity you size for is capacity you keep in deep cold.
- 12.95 EER2 is a standout for a unit this size, keeping summer demand costs in check.
- Cold-climate designated and ENERGY STAR certified, supported by Friedrich's dealer and warranty structure.
Weaknesses
- At 21 SEER2 it trades a little seasonal cooling efficiency for its strong flat-heat behavior.
- 230V-only and dealer-quoted, with no instant retail pricing.
Climate suitability
- Minimum heating ambient
- -13 F[1]
- Rated heating at 5F
- 18,000 BTU/h[2]
- Rated heating at 17F
- 18,000 BTU/h[2]
- Rated heating at 47F
- 18,000 BTU/h[2]
Specifications
ShowHide
- Manufacturer
- Friedrich
- Brand
- Friedrich
- Product line
- Floating Air Pro
- Model number
- FAHFW18A3D indoor / FPHSR18A3D outdoor
- Indoor unit model
- FAHFW18A3D
- Outdoor unit model
- FPHSR18A3D
- 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
- 20 A[1]
- Maximum fuse or breaker size
- 20 A[1]
- Breaker needed
- not published
- SEER2
- 21 SEER2[2]
- EER2
- 12.95 EER2[2]
- HSPF2 (Region 4)
- 10 HSPF2[2]
- HSPF2 (Region 5)
- not published
- COP
- not published
- COP at 47F
- 3.7 COP[1]
- COP at 5F
- 1.9 COP[2]
- Minimum outdoor heating temperature
- -13 F[1]
- Minimum outdoor cooling temperature
- 5 F[1]
- Maximum outdoor temperature
- 118 F[1]
- Indoor noise range
- 36-48 dB(A)[1]
- Outdoor noise rating
- 58 dBA[1]
- Indoor weight
- 34.2 lb[1]
- Outdoor weight
- 97 lb[1]
- Refrigerant
- R-454B[1]
- Refrigerant charge
- 53 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
- 98.4 ft[1]
- Max line set per indoor
- not published
- Maximum elevation difference
- 49.2 ft[1]
- Max height between indoor units
- not published
- Wi-Fi support
- supported[1]
- Energy Star status
- ENERGY STAR certified[3]
- AHRI certification number
- 215792223[2]
- Warranty
- Best case: 7 yr parts / 10 yr compressor (registration). 7-year limited parts warranty and 10-year compressor warranty with registration.
- 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 215792223, ENERGY STAR record 3995732 for FPHSR18A3D / FAHFW18A3D, HVACDirect exact Friedrich Floating Air t78 model search summary, Friedrich Floating Air manufacturer page snapshot, Friedrich t78 source manifest, status table, and skipped-model list, Friedrich Floating Air ductless 2026 brochure, Friedrich Floating Air Pro wall-mounted single-zone submittal, Friedrich Floating Air ductless warranty
- Specification sheet
- Friedrich Floating Air ductless 2026 brochure
- Last sourced date
- Jul 27, 2026
Electrical requirements
ShowHide
Installation considerations
ShowHide
- 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
- 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
- 98.4 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 25-5/8 x 12-2/8 in[1]
- Indoor weight
- 34.2 lb[1]
- Outdoor weight
- 97 lb[1]
- Drain size
- not published
Related systems and guides
- More Friedrich systems
- Vita Series Multi-Zone 18k
- Friedrich sibling model
- Friedrich Floating Air Select 12k 115V
- Della 18k model
- 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 lights blinking
- Mini split Wi-Fi not connecting
- Line sets
- Line-set covers
Frequently asked questions
- Can I install the Friedrich Floating Air Pro 18,000 BTU R-454B 208/230V (FAHFW18A3D / FPHSR18A3D) myself, or do I need a pro?
- Friedrich Floating Air Pro 18,000 BTU R-454B 208/230V (FAHFW18A3D / FPHSR18A3D) 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 18,000 BTU R-454B 208/230V (FAHFW18A3D / FPHSR18A3D) keep heating in a cold winter?
- The manufacturer publishes 18,000 BTU/h of heating output at 5F. Rated heating operation extends down to -13 F. Certified heating efficiency is 10 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 18,000 BTU R-454B 208/230V (FAHFW18A3D / FPHSR18A3D) need?
- Published electrical requirements: 230 V voltage, 20 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 98.4 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.
- What warranty does the Friedrich Floating Air Pro 18,000 BTU R-454B 208/230V (FAHFW18A3D / FPHSR18A3D) carry?
- The manufacturer publishes these warranty tiers: Best case: 7 yr parts / 10 yr compressor (registration). Registration requirements and proof of qualified installation commonly affect coverage, so read the warranty terms before install day.
Data sources
ShowHide
- Friedrich Air Conditioning Co.: FAHFW09A3D & FPHSR09A3D Friedrich Floating Air Pro specificationsSourced - manufacturer technical document
Covers Frequency, Maximum breaker size, Maximum fuse size, Minimum circuit ampacity, Phase, Manufacturer wire notes and more
- Air-Conditioning, Heating, and Refrigeration Institute: AHRI public detail 215792223 for FAHFW18A3D / FPHSR18A3DSourced - 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 3995732 for FPHSR18A3D / FAHFW18A3DSourced - Energy Star listing
Covers Energy Star status
- Friedrich Air Conditioning Co.: Friedrich Floating Air ductless warrantySourced - manufacturer technical document
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 23, 2026