Pioneer 9,000 BTU Ductless Mini Split Air Conditioner & Heat Pump – 115V Compact System
The Pioneer Diamante 9,000 BTU Mini Split is the perfect entry-level solution for single-room climate control — covering bedrooms, home offices, studios, and small commercial spaces up to 450 sq. ft. Operating on standard 115V household current (no special 230V circuit required), this pre-charged system features a 21.5 SEER2 inverter for maximum efficiency. AHRI Certified with a 5-year warranty, Pioneer brings professional comfort at an accessible price point.
About This Item
- Standard 115V Operation: Runs on standard 15-amp 115V household current — no special 230V circuit or electrician required for the power supply. Simplifies installation significantly vs. 230V systems.
- 21.5 SEER2 Inverter Efficiency: Variable-speed DC inverter compressor adjusts output to match the exact room load for superior efficiency — ideal for bedrooms where quiet and consistent temperature is essential.
- Pre-Charged 9K BTU System: Ships pre-charged with R-410A refrigerant for line runs up to 25 ft. Designed for professional installation — AHRI certified for accuracy of rated specifications.
- 4-in-1 Climate Control: Air conditioning, heat pump heating (to 5°F), dehumidification, and fan modes. Turbo function and sleep mode for enhanced user comfort and nighttime efficiency.
- Complete Installation Kit: Includes indoor air handler, outdoor condenser, copper line set, communication wire, remote control, drain hose, and mounting hardware.
- Ultra-Quiet 26 dB Operation: Among the quietest mini splits in its class — ideal for bedrooms, nurseries, guest rooms, and office environments where silence matters.
- 5-Year Limited Warranty: Pioneer’s 5-year parts and compressor warranty includes US-based technical support. ETL Listed, AHRI Certified, and Energy Star rated.
Product Information
| Brand | Pioneer |
|---|---|
| Model Series | Diamante Series (WYS009GMFI17RL) |
| Capacity | 9,000 BTU (0.75 Ton) |
| SEER2 Rating | 21.5 SEER2 |
| Voltage | 115V, 60Hz, 1-Phase (Standard Outlet) |
| Min. Operating Temp (Heat) | 5°F / -15°C |
| Coverage Area | Up to 450 sq. ft. |
| Line Set Length | 16 ft. pre-flared copper |
| Refrigerant | R-410A (Pre-Charged) |
| Noise Level (Indoor) | From 26 dB |
| Warranty | 5 Years Limited |
| Certifications | ETL Listed, AHRI Certified, Energy Star |
Customer Reviews Highlights
★★★★½ 4.4/5 from 2,200+ verified buyers — Customers particularly value the 115V compatibility for easy installation without an electrician. The consistent, quiet performance and impressive energy savings are frequently praised, and many reviewers note it performs above expectations for its BTU rating.











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