Pioneer® Quantum Hyperformance™ 12,000 BTU 25 SEER2 Mini-Split System

High-Efficiency Inverter Hyper Heat Pump | 230V | Energy Star Certified | Full Installation Kit Included

Experience next-level comfort with the Pioneer® Quantum Hyperformance™ 12,000 BTU Ductless Mini-Split Air Conditioner & Heat Pump System—engineered for maximum efficiency, ultra-quiet operation, and year-round climate control. With an industry-leading 25 SEER2 rating, this high-wall system delivers powerful cooling and hyper-heating performance, even in extreme temperatures.

Perfect for homes, apartments, offices, and light commercial spaces, this ductless inverter mini-split system is designed for energy savings, fast installation, and long-term reliability.

Summary at a Glance

• Ultimate Efficiency Quantum Hyperformance™ Ductless Mini Split Heat Pump System
• Cooling capacity: 12,000 BTU/H with 25 SEER2 / 14 EER2 efficiency
• Heating capacity: 12,000 BTU/H with 10.5 HSPF2 / 4 COP2 efficiency
• Voltage: 208/230V, 60Hz, 1Ph
• High Wall-Mounted Ductless Air Conditioning & Heating System
• Wi-Fi Enabled and Controllable By Smartphone via the Free Pioneer Airlink App
• Variable-Speed DC Inverter Driven Performance
• Factory-Precharged with Environmentally Friendly R454b Refrigerant
• Extreme Climate Operation (As low as -22°F in Heating / As high as 131°F in Cooling)

Key Features

Ultra-High Efficiency – 25 SEER2 Rating

Save more on energy bills with one of the most efficient mini-split systems available. This unit is Energy Star certified, ensuring optimal performance while reducing electricity consumption.

Hyper Heat Technology (Extreme Weather Ready)

Stay comfortable year-round with advanced hyper heat pump technology that delivers reliable heating even in low outdoor temperatures—perfect for both cooling and heating needs.

12,000 BTU Optimal Capacity

Ideal for medium-sized rooms (400–600 sq. ft.), including:

• Bedrooms
• Living rooms
• Offices
• Studio apartments

Inverter Compressor Technology

Enjoy precise temperature control, faster cooling/heating, and reduced energy usage with advanced inverter-driven performance.

Whisper-Quiet Operation

Designed for ultra-low noise levels, making it perfect for bedrooms, workspaces, and quiet environments.

Ductless Installation – Easy & Flexible

No ductwork required! This system includes a complete installation kit, making it a cost-effective and space-saving HVAC solution.

Smart Comfort Controls

• Wireless remote control included
• Multiple modes: Cool, Heat, Dry, Fan, Auto
• Programmable timer & sleep mode

System Includes

• Indoor high-wall air handler
• Outdoor condenser unit
• Full installation kit (line set, wiring, accessories)
• Remote control

Why Choose Pioneer® Quantum Hyperformance™?

• Best-in-class energy efficiency (25 SEER2)
• Heating & cooling in one system (heat pump)
• Lower utility bills with inverter technology
• Quiet, reliable, and durable performance
• Perfect for residential & light commercial use
• Heat Pump with Cooling, Heating, Dry, and Ventilation Modes
• Dual-Drainage Ports
• Washable, Reusable Air Filters
• Dual-Axis Airflow (Motorized Up-Down and Left-Right Louvers
• Functional Remote with:
  • ECO and SLEEP Modes, for Energy-Conservation
  • Timer On/Off Control
  • TURBO, for Times of High-Demand
  • Self-Clean Cycle
  • MEMORY, to Recall Favorite Settings
  • IFEEL, to Detect and Adjust to Local Temperature

Technical Information & Performance

• AHRI Certificate
• Energy Guide
• Submittal Sheet

• System Kit

  • Power Supply: 208~230V, 60Hz, 1Ph
  • Cooling Rated Capacity: 12,000 BTU/h
  • Cooling Capacity Range: 2,500~15,600 BTU/h
  • Cooling SEER2: 25.0 BTU/W.h
  • Cooling EER2: 14.0 BTU/W.h
  • Heating Rated Capacity: 12,000 BTU/h
  • Heating Capacity Range: 2,500~19,700 BTU/h
  • Heating HSPF2 (Region IV/V): 10.5 / 9.0 BTU/W.h
  • Heating C.O.P.2 (47°F/5°F): 4.0 / 1.8 W/W
  • Refrigerant Type: R454b
  • Recommended Room Size: 350~500 sq ft
  • Minimum Room Size: 40 sq ft
  • Piping Diameter: 3/8" (Gas) / 1/4" (Liquid)
  • AHRI Reference: 217048755

• Indoor Unit

  • Part Number: WT012GLSI25HLH
  • Air Flow (Turbo/Hi/Med/Lo/Mute): 500 / 470 / 411 / 323 / 205 CFM
  • Sound Level (Turbo/Hi/Med/Lo/Mute): 46 / 44 / 36 / 32 / 30 dB(A)
  • Product Dimensions (WDH): 36"-1/4 x 7"-5/8 x 12" Inches
  • Carton Dimensions (WDH): 39" x 10"-1/2 x 15" Inches
  • Net / Gross Weight: 23.1 / 30.9 lbs

• Outdoor Unit

  • Part Number: YN012GLSI25RPH
  • Breaker Needed: 20A (double-pole)
  • Sound Level: 57 dB(A)
  • Net Dimensions (WDH): 34" x 13"-3/4 x 23"-3/4 Inches
  • Carton Dimensions (WDH): 35" x 15"-1/8 x 24"-3/4 Inches
  • Net / Gross Weight: 69.4 / 73.9 lbs

Dimension Chart