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Pioneer 18,000 BTU Diamante Pro High-Wall Series Ductless Mini Split

SKU: pi17053k  |  Model: WYT018GLSI20RL
$1,138.00 $1,299.00

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Manufacturer's Warranty

5-Year Limited Warranty

What's In The Box?

  • Pioneer Diamante Pro High-Wall 18,000 BTU Air Handler WT018GLSI20HLF
  • Pioneer Diamante Pro High-Wall 18,000 BTU Outdoor Condenser YN018GLSI20RPF
  • 16-Foot Line Set
  • Remote Control
  • Remote Control Holder
  • Air Handler Mounting Plate
  • Wall Sleeve
  • Hardware
  • Owner's Manual, Guides, and Other Documents

Info & Guides

Perfect for mid-sized zones that demand consistent temperature control, the Diamante Pro 18,000 BTU high-wall mini-split pairs inverter technology with a heat pump to keep you comfortable year-round. Its ductless design streamlines installation and helps you manage energy use without sacrificing performance.

Whether you are upgrading a home office, a retail suite, or a finished basement, this high-efficiency system delivers quiet, reliable heating and cooling in one sleek package.

Key Features and Benefits of Pioneer 18,000 BTU Diamante Pro Mini-Split

  • High Efficiency: The high 21 SEER2 efficiency rating reduces operating costs, so you can maintain ideal temperatures without worrying about utility bills.
  • Inverter Technology: Inverter-driven compressor adjusts output in real time, giving you precise temperature control instead of the swings common with traditional HVAC systems.
  • Flexible Operating Modes: Four operating modes, cool, heat, dry, and fan, let you tackle humidity, seasonal shifts, and everyday comfort with one system. Smart comfort settings such as ECO, Sleep, Turbo, I-Feel, and Memory modes adapt airflow and temperature to match your schedule and preferences.
  • Automatic Louvers: Dual-axis airflow with motorized louvers distributes conditioned air evenly, helping eliminate hot or cold spots across rooms up to 750 square feet.
  • Quiet Operation: Ultra-quiet indoor sound level starting at 28 dB allows you to focus, relax, or sleep without distraction.
  • Washable Filter: Washable, reusable filters capture dust and particulates, supporting better indoor air quality and reducing replacement costs.
  • Eco-Friendly Refrigerant: The eco-friendly R-454B refrigerant offers lower global warming potential than legacy refrigerants, aligning with emerging sustainability standards.
  • Line Set Included: This model includes a 16-foot 1/4 x 3/8 Line Set.

Note: This mini-split air conditioner must be installed by a qualified professional.

Installer-Friendly Package

The Diamante Pro arrives with critical installation components already matched to the system, minimizing guesswork for contractors and facility managers. A pre-charged outdoor condenser, 16-foot line set, and clear electrical requirements streamline planning and reduce onsite material runs. The result is a predictable installation timeline that keeps your project on schedule.

Sylvane’s Expert Take

If you need strong heating and cooling capacity without complex ductwork, the Diamante Pro stands out for its balanced mix of efficiency, quiet operation, and installer-ready design. Its ability to maintain comfort at temperatures as low as -4 degrees F, combined with intuitive smart modes, makes it a dependable choice for both residential remodels and light commercial spaces. Add in the environmentally conscious R-454B refrigerant, and you have a mini-split that delivers lasting value from day one.

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