Pioneer® Quantum Ultra™ 12,000 BTU 24 SEER2 Ductless Mini Split AC & Heat Pump System (230V, Energy Star, Full Installation Kit Included)

Upgrade your comfort with the Pioneer® Quantum Ultra™ 12,000 BTU Mini Split Air Conditioner & Heat Pump System — engineered for maximum energy efficiency, ultra-quiet performance, and year-round climate control. Designed with advanced inverter technology and an impressive 24 SEER2 rating, this high-wall ductless system delivers powerful cooling and reliable heating while helping you save on energy bills.

Perfect for bedrooms, living rooms, offices, or small commercial spaces, this Energy Star certified mini split offers fast installation, smart performance, and long-term savings—making it a top choice for homeowners looking to buy a high-efficiency ductless AC system online.

Summary at a Glance

• Ultra High Efficiency Quantum Ultra Ductless Mini Split Heat Pump System
• Cooling capacity: 12,000 BTU/H with 24 SEER2 / 13 EER2 efficiency
• Heating capacity: 12,600 BTU/H with 10 HSPF2 / 3.81 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
• Ultra Low Ambient Range Operation (As low as -13°F in Heating / As high as 131°F in Cooling)

Key Features & Benefits

High Efficiency 24 SEER2 Rating

Enjoy superior cooling and heating performance while reducing electricity costs with one of the most energy-efficient mini split systems available.

12,000 BTU Cooling & Heating Power

Ideal for spaces up to ~450–550 sq. ft., providing powerful cooling in summer and efficient heating in winter.

Advanced Inverter Technology

Automatically adjusts compressor speed for consistent temperature, lower noise, and energy savings—no more frequent on/off cycling.

Energy Star Certified System

Eco-friendly operation that helps reduce your carbon footprint while qualifying for potential rebates.

Ultra-Quiet Operation

Whisper-quiet indoor unit ensures peaceful comfort—perfect for bedrooms, home offices, and living spaces.

All-In-One Full Installation Kit Included

Comes with indoor unit, outdoor condenser, remote control, and installation accessories for a convenient setup.

230V Power Supply

Designed for reliable, high-performance operation in residential and light commercial environments.

Why Choose This Mini Split System?

• Buy energy-efficient mini split AC online with confidence
• Lower monthly energy bills with inverter technology
• Easy installation with complete kit included
• Heating & cooling in one system (heat pump)
• Perfect replacement for window AC or central HVAC upgrades
• 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

Perfect For:

• Bedrooms
• Apartments & condos
• Home offices
• Small commercial spaces
• Garage or workshop climate control

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: 2,500~12,500 BTU/h
  • Cooling SEER2: 24.0 BTU/W.h
  • Cooling EER2: 13.0 BTU/W.h
  • Heating Rated Capacity: 12,600 BTU/h
  • Heating Capacity Range: 2,500~15,000 BTU/h
  • Heating HSPF2 (Region IV/V): 10.0 / 8.6 BTU/W.h
  • Heating C.O.P.2 (47°F/5°F): 3.81 / 2.1 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: 217048751

• Indoor Unit

  • Part Number: WT012GLSI24HLG
  • 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"-1/2 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: YN012GLSI24RPG
  • Breaker Needed: 15A (double-pole)
  • Sound Level: 52 dB(A)
  • Net Dimensions (WDH): 31"-7/8 x 12" x 21"-5/8 Inches
  • Carton Dimensions (WDH): 32"-7/8 x 13" x 22"-5/8 Inches
  • Net / Gross Weight: 58.4 / 65.0 lbs

Stay cool in summer and warm in winter—order your Pioneer Quantum Ultra™ 12,000 BTU Mini Split today and experience next-level comfort and energy savings.

Dimension Chart