Select every zone explicitly
Record the wall-mounted, cassette or ducted indoor model for each zone. The allowed mix and connected capacity depend on the selected outdoor model.
Friedrich / Contractor equipment reference
Friedrich Floating Air Pro X Multi-Zone Heat Pumps
Compare FPHMR R-454B multi-zone outdoor references and plan the approved indoor combination, controls and piping scope before the equipment quote.
- R-454B
- Multi-zone outdoor references
- 208/230 V single phase
Plan the equipment around the job
The indoor mix is part of the outdoor-unit selection.
Start with each zone’s load and indoor style. Then use the manufacturer combination tables and corrected system data to establish the actual equipment package.
Separate ducted, non-ducted and mixed references
The manufacturer lists different ratings for different indoor configurations. Do not carry a non-ducted maximum over to a ducted or mixed installation.
Document each branch and the total route
Check individual branch lengths, total length, separation and the applicable connection/accessory instructions for the actual combination.
The numbers contractors need
Floating Air Pro X Multi-Zone model specifications
Compare the listed full models, or select one for a focused view.
3 model references · confirm current sourcing and availability with Mar-Hy.
| Reference | FPHMR18A3D18,000 Btu/h outdoor class | FPHMR27A3D27,000 Btu/h outdoor class | FPHMR36A3D36,000 Btu/h outdoor class |
|---|---|---|---|
| Outdoor model | FPHMR18A3D | FPHMR27A3D | FPHMR36A3D |
| Outdoor model capacity class: Btu/h | 18,000 | 27,000 | 36,000 |
| Refrigerant | R-454B | R-454B | R-454B |
| Power: V / phase / Hz | 208/230 / 1 / 60 | 208/230 / 1 / 60 | 208/230 / 1 / 60 |
| Indoor selection | Use approved combination tables | Use approved combination tables | Use approved combination tables |
| Rated system output | Depends on the complete listed combination | Depends on the complete listed combination | Depends on the complete listed combination |
Source: Pro X multi-zone submittal, page 2; Floating Air brochure, pages 22–24. Reviewed November 11, 2026.
- Use the full model suffix and the cited document revision. Confirm current sourcing with Mar-Hy; these model references are not live availability.
- The listed equipment does not establish an approved combination by shared capacity alone.
- Dimension and electrical-protection values are not reproduced in this reference. Confirm the exact submittal revision, drawing and nameplate before using them for the installation scope.
A multi-zone efficiency rating needs the indoor configuration.
The submittal distinguishes ducted, non-ducted and mixed indoor references. Use the applicable combination and manufacturer corrected data for output and efficiency; the outdoor model class is not a promise of simultaneous capacity in every zone.
Read it. Save it. Bring it to the job.
Floating Air Pro X Multi-Zone equipment literature
Open the manufacturer reference you need. Documents load when selected.
Customer brochureFloating Air family and multi-zone overview
28 pages · 14.3 MB · PDFOpen customer brochure →Pro X multi-zone submittalOutdoor and indoor selection references
17 pages · 4.5 MB · PDFOpen pro x multi-zone submittal →
28 pages · 14.3 MB · PDFOpen customer brochure →Pro X multi-zone submittalOutdoor and indoor selection references
17 pages · 4.5 MB · PDFOpen pro x multi-zone submittal →
Search Floating Air Pro X Multi-Zone references in the Mar-Hy document library
Check the full model, revision and system scope before using technical information. Open the selected document when needed.
Get a useful quote on the first conversation
Bring the complete equipment request.
- Full outdoor and indoor model numbers, or the existing equipment identification.
- Load calculation, heating design conditions and proposed equipment locations.
- Available electrical supply, required controls and relevant installation constraints.
- Piping route, condensate plan and the accessories needed to complete the work.
- Project schedule; request current contractor pricing and availability for the complete package.
Selection questions
Do these models have the same system efficiency?
No. Use the complete listed equipment combination and its certified ratings. Do not assign a family maximum to every model or indoor pairing.
Does a listed model mean it is available now?
These are equipment references. Confirm current contractor pricing, sourcing and availability with Mar-Hy before committing to the job.
Where should I start the selection?
Start with the load and application, then use the full model numbers and manufacturer documents to establish the equipment and required accessories.
Find it at Mar-Hy
Price the equipment. Plan the whole job.
Use the model lookup below, or ask our team to confirm sourcing, current contractor pricing and availability. Mar-Hy serves contractors in Oregon and Southwest Washington from Milwaukie.
18,000 Btu/h outdoor class
FPHMR18A3D
Look up model in the shopConfirm current price and availability in the store.
27,000 Btu/h outdoor class
FPHMR27A3D
Look up model in the shopConfirm current price and availability in the store.
36,000 Btu/h outdoor class
FPHMR36A3D
Look up model in the shopConfirm current price and availability in the store.