Pioneer® Diamante Pro™ 9,000 BTU 19 SEER2 115V Energy-Star Ductless Mini-Split Air Conditioner Inverter Heat Pump with 16 Ft. Installation Kit

Premium Cooling & Heating Performance for Small Spaces

Upgrade your comfort with the Pioneer® Diamante Pro™ 9,000 BTU Mini-Split System, engineered for energy-efficient cooling and heating in bedrooms, offices, condos, and small living areas. Featuring advanced inverter technology, 19 SEER2 efficiency, and Energy Star certification, this ductless system delivers powerful climate control while keeping your energy bills low.

Whether you're looking to buy a high-efficiency mini split air conditioner, replace an outdated window unit, or install a quiet ductless heat pump, the Diamante Pro™ series offers premium performance at an unbeatable value.

Summary at a Glance

• High Efficiency Diamante Pro™ Ductless Mini Split Heat Pump System
• Cooling capacity: 9,000 BTU/H with 19 SEER2 / 11.7 EER2 efficiency
• Heating capacity: 10,000 BTU/H with 9.5 HSPF2 / 3.81 COP2 efficiency
• Voltage: 110/120V, 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

High Efficiency Cooling & Heating

• 9,000 BTU capacity ideal for rooms up to ~350 sq. ft.
• 19 SEER2 rating for maximum energy savings
• Energy Star® certified for eco-friendly performance

Year-Round Comfort with Heat Pump Technology

• Efficient cooling in summer and reliable heating in winter
• Built-in inverter heat pump adjusts output automatically

115V Easy Installation

• Standard 115V power supply – no special wiring required
• Perfect for residential DIY or professional installation

Ultra-Quiet Operation

• Whisper-quiet indoor unit for bedrooms and workspaces
• Enjoy peaceful comfort without noisy disruptions

Smart Inverter Technology

• Maintains consistent temperature
• Reduces energy consumption and extends system lifespan

Why Choose the Pioneer Diamante Pro™ Series?

• Trusted brand in ductless mini split systems
• Perfect for homeowners, contractors, and HVAC upgrades
• Ideal for bedrooms, apartments, garages, and home offices
• Designed for energy savings, quiet comfort, and long-term reliability
• 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: 110~120V, 60Hz, 1Ph
  • Cooling Rated Capacity: 9,000 BTU/h (0.75 Ton)
  • Cooling Capacity Range: 2,050~11,250 BTU/h
  • Cooling SEER2: 19.0 BTU/W.h
  • Cooling EER2: 11.7 BTU/W.h
  • Heating Rated Capacity: 10,000 BTU/h (0.83 Ton)
  • Heating Capacity Range: 2,050~12,200 BTU/h
  • Heating HSPF2 (Region IV/V): 9.5 / 8.0 BTU/W.h
  • Heating C.O.P.2 (47°F/5°F): 3.81 / 1.9 W/W
  • Refrigerant Type: R454b
  • Recommended Room Size: 250~350 sq ft
  • Minimum Room Size: 26 sq ft
  • Piping Diameter: 3/8" (Gas) / 1/4" (Liquid)
  • AHRI Reference: 217048740

• Indoor Unit

  • Part Number: WT009ALSI20HLF
  • Air Flow (Turbo/Hi/Med/Lo/Mute): 342 / 270 / 235 / 200 / 152 CFM
  • Sound Level (Turbo/Hi/Med/Lo/Mute): 42 / 40 / 35 / 30 / 28 dB(A)
  • Product Dimensions (WDH): 31"-7/8 x 8" x 11"-1/2 Inches
  • Carton Dimensions (WDH): 34"-7/8 x 10"-3/4 x 14"-3/8  Inches
  • Net / Gross Weight: 19.8 / 26.5 lbs

• Outdoor Unit

  • Part Number: YN009ALSI20RPF
  • Breaker Needed: 25A (single-pole)
  • Sound Level: 54 dB(A)
  • Net Dimensions (WDH): 31" x 11"-1/2 x 19"-3/8 Inches
  • Carton Dimensions (WDH): 33" x 13"-3/8 x 22"-3/4 Inches
  • Net / Gross Weight: 51.8 / 62.8 lbs

Upgrade Your Comfort Today

Experience powerful, energy-efficient climate control with the Pioneer® Diamante Pro™. Enjoy fast installation, lower energy bills, and year-round comfort.

Dimension Chart