SplitAtlas

Friedrich / Floating Air Pro X

Friedrich Floating Air Pro X 18k R-454B 208/230V 2-Zone Mini-Split

Certified capacity
18,000 BTU/h[2]
SEER2
22 SEER2[2]
Heating floor
-13 F[1]
Voltage
230 V[1]
Install path
Professional install

The Floating Air Pro X 2-zone pairs two rooms to one 208/230V outdoor unit. It carries current R-454B refrigerant and a certified nominal SEER2 of 22 (EER2 13.3, HSPF2 10), and it is ENERGY STAR certified and AHRI cold-climate designated.

As with any multi-zone, that certified figure is the all-non-ducted nominal; your real efficiency depends on the heads you attach. Heating is certified at 18000 BTU at 47F, 11500 at 17F and the full 18000 at 5F.

Friedrich is an established American brand installed by professional dealers and priced by quote.

2 zonesProfessional installCurrent

Refrigerant generation

R-454B - current-generation refrigerant

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Error Codes
Friedrich Floating Air Pro X 2-Zone 18,000 BTU R-454B 208/230V (FPHMR18A3D) mini-split heat pump outdoor condenser

Image: Shop Appliances

Data completeness: 95%
Last sourced
Jul 29, 2026

SplitAtlas score

8.7 / 10

Methodology
Cooling efficiencyAbove average

(22.0 SEER2) among 18k systems

Heating efficiencyAbove average

(10.0 HSPF2) among 18k systems

Cold-weather performanceTop quartile

(5F certified capacity: 100% of the 47F rating; -13 F heating floor) among 18k systems

WarrantyAbove average

(7 yr parts / 10 yr compressor) across the catalogue

Feature setBelow average

(4 verified features) across the catalogue

Documentation & partsBelow average

(8 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.

    Get a quote

Key ratings

Rated cooling

18,000BTU/hNon-Ducted Indoor Units[2]

Rated heating

18,000BTU/hNon-Ducted Indoor Units[2]

Buyer review snapshot

Best for / skip if

Best for

  • 2-zone projects in the 18k outdoor capacity class.
  • High-efficiency shortlists; SEER2 is 22.

Install difficulty

Complex professional install
  • Electrical: 230V; MCA 21 A; breaker/fuse 25 A.
  • Line set: connection type not sourced; precharged 50 ft; max 164 ft.
  • 2-zone condenser; indoor-head matching and branch layout are part of the job.

Alternatives

Availability and price context

This system needs a professional install, so its real price is an installed quote that depends on your home. We don't link to a listing for this exact model; get installation quotes to price it.

Source date

Model data sourced
Jul 29, 2026
Page reviewed
Jul 29, 2026
Source-backed records
3
Newest source retrieved
Jul 29, 2026

Warranty tiers

Registered
7 yr parts / 10 yr compressor - registration

The score uses Registered. Additional published terms are shown for reference and not counted in the score.

Review methodology

Model context

Install path
This is professional-install equipment; price it with an installed quote.
Structured ratings
Certification: ENERGY STAR certified and ENERGY STAR cold-climate certified. Refrigerant: current low-GWP R-454B. Minimum heating ambient: -13 F.

Strengths

  • Two zones from one outdoor unit and one 208/230V circuit.
  • Certified nominal SEER2 22 / EER2 13.3 / HSPF2 10, ENERGY STAR certified.
  • Certified at the full 18000 BTU at 5F, matching its 47F output; AHRI cold-climate designated.
  • Current R-454B refrigerant from an established, quality-focused American brand.

Weaknesses

  • Two-zone total capacity is shared; size to the condenser, not two full rooms.
  • Dealer-quoted pricing only, with a part-load efficiency penalty when only one zone is calling.

Climate suitability

Minimum heating ambient
-13 F[1]
Certified heating at 5F
18,000 BTU/hNon-Ducted Indoor Units[2]
Maximum heating at 5F (manufacturer)
18,000 BTU/h[1]
Rated heating at 17F
11,500 BTU/hNon-Ducted Indoor Units[2]
Rated heating at 47F
18,000 BTU/hNon-Ducted Indoor Units[2]

Specifications

Show
Manufacturer
Friedrich
Brand
Friedrich
Product line
Floating Air Pro X
Model number
FPHMR18A3D
Indoor unit model
Depends on the indoor units you choose
Outdoor unit model
FPHMR18A3D
Number of zones
2
Max indoor units
2 units[1]
Rated cooling capacity
18,000 BTU/hNon-Ducted Indoor Units[2]
Rated heating capacity
18,000 BTU/hNon-Ducted Indoor Units[2]
Voltage
230 V[1]
MCA
21 A[1]
Maximum fuse or breaker size
25 A[1]
Breaker needed
not published
SEER2
22 SEER2Non-Ducted Indoor Units[2]
EER2
13.3 EER2Non-Ducted Indoor Units[2]
HSPF2 (Region 4)
10 HSPF2Non-Ducted Indoor Units[2]
HSPF2 (Region 5)
Varies by indoor-unit combination
COP
not published
COP at 47F
3.82 COP[1]
COP at 5F
1.99 COPNon-Ducted Indoor Units[2]
Minimum outdoor heating temperature
-13 F[1]
Minimum outdoor cooling temperature
5 F[1]
Maximum outdoor temperature
125 F[1]
Indoor noise range
Depends on the indoor units you choose
Outdoor noise rating
55 dBA[1]
Indoor weight
Depends on the indoor units you choose
Outdoor weight
101.4 lb[1]
Refrigerant
R-454BNon-Ducted Indoor Units[2]
Refrigerant charge
51.1 oz[1]
Manufacturer coverage
not published
Line-set size
1/4 in liquid / 3/8 in suction
Included line-set length
Depends on the indoor units you choose
Maximum line-set length
164 ft[1]
Max line set per indoor
82 ft[1]
Maximum elevation difference
49 ft[1]
Max height between indoor units
not published
Wi-Fi support
Depends on the indoor units you choose
Energy Star status
ENERGY STAR certified[3]
AHRI certification number
215792836Non-Ducted Indoor Units[2]
Warranty
Registered: 7 yr parts / 10 yr compressor (registration). Score uses Registered.. 7-year limited parts / 10-year compressor warranty with registration
Install path
Professional install
Retail price
Installed quote only
Available retailers
not published
Manual links
Friedrich 2026 Floating Air ductless brochure, AHRI public detail for FPHMR18A3D, ENERGY STAR exact AHRI rows for FPHMR18A3D, Friedrich R-454B multi-zone outdoor installation manual, Friedrich Floating Air official page, Friedrich Floating Air Pro multi-zone R-454B service manual, Friedrich Floating Air Pro X Multi-Zone submittal
Specification sheet
Friedrich Floating Air Pro X Multi-Zone submittal
Last sourced date
Jul 29, 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
25 A[1]
Maximum fuse size
25 A[1]
Maximum cooling current
not published
Maximum heating current
not published
Manufacturer wire notes
4 x 14 AWG stranded THHN[1]

Installation considerations

Show
Liquid line
1/4 in[1]
Suction line
3/8 in[1]
Line connection type
not published
Precharged length
50 ft[1]
Included line-set length
Depends on the indoor units you choose
Maximum line-set length
164 ft[1]
Max line set per indoor
82 ft[1]
Max height between indoor units
not published
Indoor dimensions
Depends on the indoor units you choose
Outdoor dimensions
33-7/8 x 26-3/8 x 12-1/4 in[1]
Indoor weight
Depends on the indoor units you choose
Outdoor weight
101.4 lb[1]
Drain size
not published

Related systems and guides

Frequently asked questions

Can I install the Friedrich Floating Air Pro X 2-Zone 18,000 BTU R-454B 208/230V (FPHMR18A3D) myself, or do I need a pro?
Friedrich Floating Air Pro X 2-Zone 18,000 BTU R-454B 208/230V (FPHMR18A3D) 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 2-Zone 18,000 BTU R-454B 208/230V (FPHMR18A3D) keep heating in a cold winter?
The AHRI/ENERGY STAR certification lists 18,000 BTU/h of heating capacity 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 X 2-Zone 18,000 BTU R-454B 208/230V (FPHMR18A3D) need?
Published electrical requirements: 230 V voltage, 21 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 from the outdoor unit to one indoor head is 82 ft. The combined piping limit across all heads is 164 ft. The outdoor unit's factory charge covers up to 50 ft of line; longer runs need added refrigerant. Measure the planned routing before ordering.
What warranty does the Friedrich Floating Air Pro X 2-Zone 18,000 BTU R-454B 208/230V (FPHMR18A3D) carry?
The manufacturer publishes these warranty tiers: Registered: 7 yr parts / 10 yr compressor (registration). Score uses Registered.. Registration requirements and proof of qualified installation commonly affect coverage, so read the warranty terms before install day.

Data sources

Show
  1. Friedrich Air Conditioning Co.: Friedrich Floating Air Pro X Multi-Zone submittalSourced - manufacturer technical document

    Covers Frequency, Maximum breaker size, Maximum fuse size, Minimum circuit ampacity, Phase, Manufacturer wire notes and more

  2. Air-Conditioning, Heating, and Refrigeration Institute: AHRI Appendix M1 public detail for FPHMR18A3DSourced - AHRI directory

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

  3. ENERGY STAR: ENERGY STAR product database exact AHRI rows for FPHMR18A3DSourced - secondary source

    Covers performance_spec.energy_star_cold_climate, Energy Star status

Last updated

Jul 29, 2026