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Pioneer Mini Splits: Verified Specs (4 models)
Pioneer's current single-zone line is the Quantum Ultra (WYT-24) series on R-454B refrigerant — the older WYS and Diamante (WYT) series were discontinued in the R-410A phase-out. Verified Quantum Ultra models run SEER2 23.0 across sizes and are rated to −13°F heating.
Quick facts (from the verified dataset, 2026-06-10)
- Verified models
- 4 (9,000 / 12,000 / 18,000 / 24,000 BTU)
- SEER2 range
- 23–23
- DIY installable
- No — professional installation
- Refrigerant
- R-454B
- Compressor warranty
- up to 5 years (with registration)
All verified Pioneer models
Some links below are affiliate links — see disclosure.
| Model | BTU | SEER2 | HSPF2 | Volt | Min temp | Install | Verified price | Source |
|---|---|---|---|---|---|---|---|---|
| Pioneer Quantum Ultra (WYT-24) WYT009ALSI24RL-10S |
9,000 | 23 | 9.5 | 115V | -13°F | Pro | $1,083 sale / $1,549 list (pioneerminisplit.com, Jun 2026) | spec ↗ |
| Pioneer Quantum Ultra (WYT-24) WYT012ALSI24RL-10S |
12,000 | 23 | 10 | 115V | -13°F | Pro | $1,163 sale / $1,649 list (pioneerminisplit.com, Jun 2026) | spec ↗ |
| Pioneer Quantum Ultra (WYT-24) WYT018GLSI24RL-10S |
18,000 | 23 | 10 | 208/230V | -13°F | Pro | $1,519 sale / $2,169 list (pioneerminisplit.com, Jun 2026) | spec ↗ |
| Pioneer Quantum Ultra (WYT-24) WYT024GLSI24RL-10S |
23,000 | 23 | 9.5 | 208/230V | -13°F | Pro | $1,866 sale / $2,669 list (pioneerminisplit.com, Jun 2026) | spec ↗ |
Specs verified against the linked source pages on 2026-06-10. “—” = not stated on the verified source (never guessed). Prices move; treat as bands.