Pioneer® Diamante Pro™ 24,000 BTU 21 SEER2 230V Ductless Mini Split Inverter Heat Pump AC with 16 Ft Installation Kit

High-Performance Cooling & Heating—Built for Efficiency and Comfort

Upgrade your home or business climate control with the Pioneer® Diamante Pro™ 24,000 BTU 21 SEER2 Ductless Mini Split Air Conditioner & Heat Pump. Designed for powerful, energy-efficient performance, this high-wall inverter system delivers year-round comfort with ultra-quiet operation and advanced temperature control.

Whether you're looking to buy a high-efficiency mini split, replace an outdated HVAC system, or install a cost-saving ductless AC, this premium unit is engineered to maximize comfort while reducing energy costs.

Summary at a Glance

• High Efficiency Diamante Pro™ Ductless Mini Split Heat Pump System
• Cooling capacity: 24,000 BTU/H with 21 SEER2 / 10.5 EER2 efficiency
• Heating capacity: 24,000 BTU/H with 9.5 HSPF2 / 3.41 COP2 efficiency
• Voltage: 208/230V, 60Hz, 1Ph
• High Wall-Mounted Ductless Air Conditioning & Heating System
• Variable-Speed DC Inverter Driven Performance
• Factory-Precharged with Environmentally Friendly R454b Refrigerant
• Low Ambient Range Operation (As low as -4°F in Heating / As high as 122°F in Cooling)

Key Features & Benefits

Powerful 24,000 BTU Cooling & Heating

Perfect for medium to large rooms, this system provides rapid cooling in summer and reliable heating in winter—ideal for homes, offices, garages, and commercial spaces.

21 SEER2 Energy Efficiency Rating

Save more on electricity bills with advanced inverter technology that adjusts power usage dynamically for optimal performance and lower operating costs.

Inverter Heat Pump Technology

Enjoy year-round climate control with both cooling and heating functions—no need for separate systems.

Ultra-Quiet Operation

Designed for minimal noise, making it perfect for bedrooms, living rooms, and workspaces where silence matters.

Complete 16 Ft Installation Kit Included

Everything you need for a streamlined installation—ideal for DIY enthusiasts or professional installers.

Smart Comfort Controls

Easily adjust temperature, fan speed, and modes with intuitive remote control functionality.

Why Choose This Mini Split System?

• Best mini split for energy savings
• Ideal for ductless AC installation
• Perfect replacement for window or central AC units
• Low maintenance & long-lasting durability
• Eco-friendly refrigerant technology
• 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: 24,000 BTU/h (2 Ton)
  • Cooling Capacity Range: 5,100~25,200 BTU/h
  • Cooling SEER2: 21.0 BTU/W.h
  • Cooling EER2: 10.5 BTU/W.h
  • Heating Rated Capacity: 24,000 BTU/h (2 Ton)
  • Heating Capacity Range: 5,100~25,900 BTU/h
  • Heating HSPF2 (Region IV/V): 9.5 / 8.2 BTU/W.h
  • Heating C.O.P.2 (47°F/5°F): 3.41 / 2.1 W/W
  • Refrigerant Type: R454b
  • Recommended Room Size: 750~1,000 sq ft
  • Minimum Room Size: 51 sq ft
  • Piping Diameter: 1/2" (Gas) / 1/4" (Liquid)
  • AHRI Reference: 217048745

• Indoor Unit

  • Part Number: WT024GLSI20HLF
  • Air Flow (Turbo/Hi/Med/Lo/Mute): 847 / 705 / 588 / 470 / 412 CFM
  • Sound Level (Turbo/Hi/Med/Lo/Mute): 52 / 50 / 44 / 38 / 36 dB(A)
  • Product Dimensions (WDH): 46"-7/8 x 10"-1/4 x 14"-1/4 Inches
  • Carton Dimensions (WDH): 49"-5/8 x 13" x 17" Inches
  • Net / Gross Weight: 36.4 / 43 lbs

• Outdoor Unit

  • Part Number: YN024GLSI20RPF
  • Breaker Needed: 25A (double-pole)
  • Sound Level: 58 dB(A)
  • Net Dimensions (WDH): 36"-1/2 x 14"-7/8 x 27"-1/2 Inches
  • Carton Dimensions (WDH): 37"-3/4 x 17"-1/8 x 30"-1/2 Inches
  • Net / Gross Weight: 88.2 / 103.6 lbs

Take Control of Your Comfort Today

Don’t settle for inefficient cooling systems. Upgrade to the Pioneer Diamante Pro™ Mini Split and experience powerful performance, lower energy bills, and year-round comfort.

Enjoy a fast, reliable climate control with premium efficiency.

Dimension Chart