# Pioneer Inverter++ (R-410A)

> Pioneer Inverter++ is Pioneer's modular tool storage system, launched in 2022. It is no longer sold new. MiniSplit Facts lists 21 products in it: 21 single-zone systems.

- Brand: [Pioneer](https://minisplitfacts.com/brands/pioneer/)
- Status: no longer sold new
- Launched: 2022 ([source](https://data.energystar.gov/Active-Specifications/ENERGY-STAR-Certified-Mini-Split-Heat-Pumps/akti-mt5s))
- Page: https://minisplitfacts.com/lines/pioneer-yn-r410a/

CYB, CYK, FYB, RYB and UYB single-zone systems. Previous generation: R-410A. Pioneer's store tags these units "R410aFinalSellout" (seen 2026-10-14); most are sold out.

## Products

Dimensions are L × W × H in inches; load is the brand's rated load. Each product's page names the source of every value.

### Single-zone systems

| Product | Size tier | Size (BTU/h) | Indoor style | Voltage | Zones | SEER2 | EER2 | HSPF2 | Cooling (BTU/h) | Heat @47 °F (BTU/h) | Heat @5 °F (BTU/h) | COP at 5 °F | Heats to (°F) | Refrigerant | ENERGY STAR | Cold climate | Lines | Line set (ft) | Wi-Fi control | Indoor dB(A) | Outdoor dB(A) | Compressor warr. (yr) | Parts warr. (yr) | Lifetime parts | Self-install warranty | Price | Store (checked) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| [Pioneer Inverter++ 18,000 BTU concealed duct system (RYB)](https://minisplitfacts.com/products/pioneer-yn-r410a-18k-duct-ryb/) | — | 18000 | Concealed duct | 208/230V | — | 20 | 12.5 | 10.6 | 17000 | 20000 | 13000 | 2.4 | — | R-410A | yes | no | Flare | 10 | — | 36 | 60 | 5 | 5 | — | Kept | — |  |
| [Pioneer Inverter++ 12,000 BTU 115V ceiling cassette system (CYB)](https://minisplitfacts.com/products/pioneer-yn-r410a-12k-115v-cassette-cyb/) | 12k | 12000 | Ceiling cassette | 115V | — | — | — | — | 12000 | 12000 | — | — | — | R-410A | — | — | Flare | 10 | — | 36 | 57.5 | 5 | 5 | — | Kept | — |  |
| [Pioneer Inverter++ 18,000 BTU floor console system (FYB)](https://minisplitfacts.com/products/pioneer-yn-r410a-18k-console-fyb/) | — | 18000 | Floor console | 208/230V | — | 22.4 | 12.5 | 10.4 | 16000 | 17000 | 12700 | 2.32 | 6 | R-410A | yes | yes | Flare | 10 | — | 30.5 | 58 | 5 | 5 | — | Kept | — |  |
| [Pioneer Inverter++ 18,000 BTU one-way cassette system (CYK)](https://minisplitfacts.com/products/pioneer-yn-r410a-18k-one-way-cassette-cyk/) | — | 18000 | Ceiling cassette | 208/230V | — | 21.8 | 12.5 | 10.7 | 18000 | 19000 | — | — | — | R-410A | — | — | Flare | 10 | — | 34 | 58 | 5 | 5 | — | Kept | — |  |
| [Pioneer Inverter++ 12,000 BTU one-way cassette system (CYK)](https://minisplitfacts.com/products/pioneer-yn-r410a-12k-one-way-cassette-cyk/) | — | 12000 | Ceiling cassette | 208/230V | — | 22 | 12.6 | 9.8 | 12000 | 12500 | — | — | — | R-410A | — | — | Flare | 10 | — | 34.5 | 54.5 | 5 | 5 | — | Kept | — |  |
| [Pioneer Inverter++ 9,000 BTU one-way cassette system (CYK)](https://minisplitfacts.com/products/pioneer-yn-r410a-9k-one-way-cassette-cyk/) | — | 9000 | Ceiling cassette | 208/230V | — | 22.5 | 13 | 11.5 | 9000 | 11000 | — | — | — | R-410A | — | — | Flare | 10 | — | 33 | 54.5 | 5 | 5 | — | Kept | — |  |
| [Pioneer Inverter++ 9,000 BTU 115V ceiling cassette system (CYB)](https://minisplitfacts.com/products/pioneer-yn-r410a-9k-115v-cassette-cyb/) | 9k | 9000 | Ceiling cassette | 115V | — | — | — | — | 9000 | 10000 | — | — | — | R-410A | — | — | Flare | 10 | — | 36 | 54 | 5 | 5 | — | Kept | — |  |
| [Pioneer Inverter++ 48,000 BTU ceiling cassette system (CYB)](https://minisplitfacts.com/products/pioneer-yn-r410a-48k-cassette-cyb/) | 48k | 48000 | Ceiling cassette | 208/230V | — | 18.5 | 9.5 | 9.8 | 48000 | 50000 | — | — | — | R-410A | — | — | Flare | 10 | — | 50 | 65 | 5 | 5 | — | Kept | — |  |
| [Pioneer Inverter++ 48,000 BTU concealed duct system (RYB)](https://minisplitfacts.com/products/pioneer-yn-r410a-48k-duct-ryb/) | — | 48000 | Concealed duct | 208/230V | — | 15.1 | 8.5 | 9.3 | 48000 | 50000 | — | 1.91 | — | R-410A | — | — | Flare | 10 | — | 49 | 65 | 5 | 5 | — | Kept | — |  |
| [Pioneer Inverter++ 36,000 BTU concealed duct system (RYB)](https://minisplitfacts.com/products/pioneer-yn-r410a-36k-duct-ryb/) | — | 36000 | Concealed duct | 208/230V | — | 15.8 | 8.8 | 8.8 | 36000 | 40000 | — | 1.91 | — | R-410A | — | — | Flare | 10 | — | 40.5 | 63.5 | 5 | 5 | — | Kept | — |  |
| [Pioneer Inverter++ 24,000 BTU concealed duct system (RYB)](https://minisplitfacts.com/products/pioneer-yn-r410a-24k-duct-ryb/) | — | 24000 | Concealed duct | 208/230V | — | 19 | 12.5 | 11.2 | 23000 | 25000 | 20000 | 2.3 | — | R-410A | yes | yes | Flare | 10 | — | 37 | 61 | 5 | 5 | — | Kept | — |  |
| [Pioneer Inverter++ 12,000 BTU concealed duct system (RYB)](https://minisplitfacts.com/products/pioneer-yn-r410a-12k-duct-ryb/) | — | 12000 | Concealed duct | 208/230V | — | 19 | 11.7 | 10.3 | 11500 | 12000 | 8400 | 2.26 | — | R-410A | yes | yes | Flare | 10 | — | 31 | 58 | 5 | 5 | — | Kept | — |  |
| [Pioneer Inverter++ 9,000 BTU concealed duct system (RYB)](https://minisplitfacts.com/products/pioneer-yn-r410a-9k-duct-ryb/) | — | 9000 | Concealed duct | 208/230V | — | 19.2 | 12.5 | 10.2 | 9000 | 10000 | 8000 | 2.1 | — | R-410A | yes | yes | Flare | 10 | — | 27 | 54.5 | 5 | 5 | — | Kept | — |  |
| [Pioneer Inverter++ 48,000 BTU floor/ceiling system (UYB)](https://minisplitfacts.com/products/pioneer-yn-r410a-48k-floor-ceiling-uyb/) | — | 48000 | Floor/ceiling | 208/230V | — | 18.9 | 9.3 | 10 | 48000 | 50000 | — | 1.85 | — | R-410A | — | — | Flare | 10 | — | 44.5 | 65 | 5 | 5 | — | Kept | — |  |
| [Pioneer Inverter++ 36,000 BTU floor/ceiling system (UYB)](https://minisplitfacts.com/products/pioneer-yn-r410a-36k-floor-ceiling-uyb/) | — | 36000 | Floor/ceiling | 208/230V | — | 19 | 8.5 | 9 | 36000 | 38000 | — | 1.8 | — | R-410A | — | — | Flare | 10 | — | 40.5 | 63.5 | 5 | 5 | — | Kept | — |  |
| [Pioneer Inverter++ 24,000 BTU floor/ceiling system (UYB)](https://minisplitfacts.com/products/pioneer-yn-r410a-24k-floor-ceiling-uyb/) | — | 24000 | Floor/ceiling | 208/230V | — | 21.2 | 12.5 | 10.3 | 24000 | 24000 | 18200 | 2.2 | — | R-410A | yes | yes | Flare | 10 | — | 42 | 61 | 5 | 5 | — | Kept | — |  |
| [Pioneer Inverter++ 12,000 BTU floor console system (FYB)](https://minisplitfacts.com/products/pioneer-yn-r410a-12k-console-fyb/) | — | 12000 | Floor console | 208/230V | — | 22.7 | 13 | 10.2 | 12000 | 12000 | 8400 | 2.26 | 2 | R-410A | yes | yes | Flare | 10 | — | 33 | 53.5 | 5 | 5 | — | Kept | — |  |
| [Pioneer Inverter++ 36,000 BTU ceiling cassette system (CYB)](https://minisplitfacts.com/products/pioneer-yn-r410a-36k-cassette-cyb/) | — | 36000 | Ceiling cassette | 208/230V | — | 19.2 | 9 | — | 36000 | 38000 | — | — | — | R-410A | — | — | Flare | 10 | — | 46.5 | 66 | 5 | 5 | — | Kept | — |  |
| [Pioneer Inverter++ 24,000 BTU ceiling cassette system (CYB)](https://minisplitfacts.com/products/pioneer-yn-r410a-24k-cassette-cyb/) | — | 24000 | Ceiling cassette | 208/230V | — | 21.5 | 12.5 | 9.7 | 24000 | 25000 | — | — | — | R-410A | — | — | Flare | 10 | — | 43 | 61 | 5 | 5 | — | Kept | — |  |
| [Pioneer Inverter++ 12,000 BTU ceiling cassette system (CYB)](https://minisplitfacts.com/products/pioneer-yn-r410a-12k-cassette-cyb/) | 12k | 12000 | Ceiling cassette | 208/230V | — | 22 | 14 | 10 | 12000 | 12000 | — | — | — | R-410A | — | — | Flare | 10 | — | 32.5 | 53.5 | 5 | 5 | — | Kept | — |  |
| [Pioneer Inverter++ 9,000 BTU ceiling cassette system (CYB)](https://minisplitfacts.com/products/pioneer-yn-r410a-9k-cassette-cyb/) | 9k | 9000 | Ceiling cassette | 208/230V | — | 20 | 13 | 10 | 9000 | 10000 | — | — | — | R-410A | — | — | Flare | 10 | — | 31.5 | 54.5 | 5 | 5 | — | Kept | — |  |

## Questions

**What is in the Pioneer Inverter++ lineup?**
MiniSplit Facts lists 21 Pioneer Inverter++ products: 21 single-zone systems.

**When did Pioneer Inverter++ come out?**
Pioneer launched Inverter++ in 2022 ([source](https://data.energystar.gov/Active-Specifications/ENERGY-STAR-Certified-Mini-Split-Heat-Pumps/akti-mt5s)).

**What warranty if you install it yourself does Pioneer Inverter++ have?**
21 of the 21 Pioneer Inverter++ products we list have a published warranty if you install it yourself (Kept), for example the [Pioneer Inverter++ 18,000 BTU concealed duct system (RYB)](https://minisplitfacts.com/products/pioneer-yn-r410a-18k-duct-ryb/) and the [Pioneer Inverter++ 12,000 BTU 115V ceiling cassette system (CYB)](https://minisplitfacts.com/products/pioneer-yn-r410a-12k-115v-cassette-cyb/). What the brand's warranty says when the owner installs the unit: kept, reduced, or void without a licensed installer. The quote is on the product page.

**What is the largest Pioneer Inverter++ system?**
By size, the [Pioneer Inverter++ 48,000 BTU ceiling cassette system (CYB)](https://minisplitfacts.com/products/pioneer-yn-r410a-48k-cassette-cyb/) at 48,000 BTU/h.

**Where can I buy Pioneer Inverter++?**
The stores with the most Pioneer Inverter++ listings on file are Pioneer (21 products). Each product page lists every store we track, with the price and the date it was checked.


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MiniSplit Facts lists modular tool storage from every brand side by side, with a source for every spec. [How we compare](https://minisplitfacts.com/how-we-compare/). Data as of 2026-10-14.