Size for the room, not the family maximum
Use the room load and the selected pair’s performance data. A family efficiency maximum or model size does not establish the output needed for the job.
Daikin / Contractor equipment reference
Daikin ATMOSPHERA Heat Pumps
Use the current-generation R-32 RXM / FTXM references below to compare listed pairs, cabinet dimensions and the manufacturer specification table.
- R-32
- Single-zone wall-mounted
- Full model pairs below
Plan the equipment around the job
Compare the room requirement with the actual RXM / FTXM pair.
Use the manufacturer-listed indoor/outdoor references and the full installation scope to prepare the equipment package. The table is a model reference, not a complete design.
Check both cabinets
The larger indoor models use a wider wall cabinet. Confirm wall space, discharge path, service access and the outdoor clearances before committing to the layout.
Preserve the WVJU9 identity
Earlier RXM/FTXM references also exist. Keep the full model, refrigerant and brochure generation together when ordering or selecting technical data.
The numbers contractors need
ATMOSPHERA 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 | RXM12WVJU912,000 Btu/h class | RXM18WVJU918,000 Btu/h class | RXM24WVJU924,000 Btu/h class |
|---|---|---|---|
| Outdoor model | RXM12WVJU9 | RXM18WVJU9 | RXM24WVJU9 |
| Listed indoor model | FTXM12WVJU9 | FTXM18WVJU9 | FTXM24WVJU9 |
| Model capacity class: Btu/h | 12,000 | 18,000 | 24,000 |
| Refrigerant | R-32 | R-32 | R-32 |
| Outdoor dimensions H × W × D: in. | 23-7/16 × 33-1/4 × 11-13/16 | 28-15/16 × 34-1/4 × 12-5/8 | 28-15/16 × 34-1/4 × 12-5/8 |
| Indoor dimensions H × W × D: in. | 11-3/4 × 36-1/4 × 10-13/16 | 11-3/4 × 43-5/16 × 10-13/16 | 11-3/4 × 43-5/16 × 10-13/16 |
Source: Manufacturer brochure, printed page 14. 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.
- Dimensions are transcribed from the cited brochure. Refer to the manufacturer dimensional drawing and installation clearances for the actual model.
Use the rating and heating data for the listed pair.
The capacity-class row identifies the model class. It is not a rated-output claim. Confirm the pair’s rated and design-condition capacity, efficiency and applicable AHRI record before using performance figures in a proposal.
Read it. Save it. Bring it to the job.
ATMOSPHERA equipment literature
Open the manufacturer reference you need. Documents load when selected.
Search ATMOSPHERA references in the Mar-Hy document library
This manufacturer brochure includes the cited technical table. A separate full-model submittal is not linked in this reference; use the manufacturer selection resources and confirm the exact equipment documents with Mar-Hy.
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.
12,000 Btu/h class
RXM12WVJU9
Look up model in the shopConfirm current price and availability in the store.
18,000 Btu/h class
RXM18WVJU9
Look up model in the shopConfirm current price and availability in the store.
24,000 Btu/h class
RXM24WVJU9
Look up model in the shopConfirm current price and availability in the store.
Keep the job references close
Find ATMOSPHERA equipment documents
Explore Daikin equipment through Mar-Hy
View Mar-Hy contractor training
Compare Mar-Hy heat-pump families