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Pioneer Diamante Pro 18,000 BTU 21 SEER2 230V High-Wall Ductless Mini-Split Air Conditioner Inverter Heat Pump with 16 Ft. Kit

  • Based on 9 reviews
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Availability: In Stock.
Fulfilled by Sylvane

Arrives Wednesday, Jul 22
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Style: 18000 BTU - 230V


Features

  • High Efficiency Diamante Ductless Mini Split Inverter Heat Pump System
  • Use for both cooling and heating: 18000 BTU/hour with 21 SEER and 9.5 HSPF efficiency
  • Diamante series carries a full line of low-ambient wall-mounted mini splits with capacities ranging from 9,000 BTU/hour to 36,000 BTU/hour for various residential and light commercial applications
  • Complete system set including: indoor (fan coil) section, outdoor (condenser) section, wireless remote controller with remote holder, 16 ft. L line set with other installation accessories, free vibration absorber feet for the condensing unit
  • Voltage: 208~230V, 60Hz, 1Ph

Description

Discover the ideal blend of performance, precision, and control with the WYT-20 Diamante Pro Series from Pioneer. Engineered with a powerful DC inverter compressor and charged with eco-friendly R-454B refrigerant, this next-generation ductless mini split system achieves an impressive average efficiency of up to 20 SEER2, helping you stay comfortable year-round with lower energy consumption. Whether you're heating in freezing -4°F conditions or cooling on sweltering days, the WYT-20 delivers reliable performance across a wide operating range, and comes in 8-capacity options to suit any room size. Featuring 3D airflow with a dual-directional louver, the Diamante Pro evenly distributes air throughout the room for superior comfort. A modern flat-panel design with LED display meets function with style, while optional wireless internet control via the Pioneer AirLink app (module sold separately) gives you full command of your climate from anywhere. Quiet, efficient, and packed with smart features, this is climate control that adapts to your life.

Brand: Pioneer


Capacity: 1.5 Tons


Cooling Power: 18000 British Thermal Units


Special Feature: Fast Cooling, Inverter Compressor, Remote Controlled, Silent Mode, Sleep Mode


Product Dimensions: 9"D x 39.75"W x 12.38"H


Seasonal Energy Efficiency Ratio (SEER): 21


Color: White


Voltage: 230 Volts


Noise Level: 32 Decibels


Refrigerant: R-454b


Cooling Power: 18000 British Thermal Units


Additional Features: Fast Cooling, Inverter Compressor, Remote Controlled, Silent Mode, Sleep Mode


Color: White


Noise: 32 Decibels


Refrigerant: R-454b


Filter Type: Mesh Filter


Inverter Type: Has Inverter


Installation Type: Split System


Compressor Type: rotary_scroll


Voltage: 230 Volts


Power Source: Corded Electric


Wattage: 1700 watts


Seasonal Energy Efficiency Ratio (SEER): 21


Efficiency: High Efficiency (SEER2 21.0, EER2 11.0)


Annual Energy Consumption: 1700 Watt Hours


Capacity: 1.5 Tons


Floor Area: 750 Square Feet


Room Type: Bedroom


Brand Name: Pioneer


Model Name: Diamante Pro


Model Number: WYT018GLSI20RL


Included Components: Installation Kit, User Manual


Global Trade Identification Number: 45


UPC: 810102183545


Manufacturer: Parker Davis HVAC International, LLC.


Warranty Description: Five year parts warranty covering all components, upon proper registration after installation.


Item Dimensions D x W x H: 9"D x 39.75"W x 12.38"H


Item Weight: 33.7 Pounds


Controller Type: Remote Control


Warranty Type: Limited


BEE Star Rating: 5 Star


Form Factor: Mini-Split


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Jul 22

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Very quiet and efficient
Style: 18000 BTU - 230V
This split system is so quiet when it's running. Good value for the cost. Arrived very quickly, and was easy for our installer to install. It cools and heats perfectly. So far it is very reliable.
Reviewed in the United States on May 18, 2026 by Leslie

  • Easy to install… Easy to install…
Style: 18000 BTU - 230V
Price-shipping-communication-was top notch. Units shipped with no damage and installation was a breeze. The customer service was excellent. Tim Meyer Warsaw, KY
Reviewed in the United States on May 14, 2026 Reviewed in the United States on May 14, 2026 by Tim Meyer

  • Keys to comfortability
Style: 18000 BTU - 230V
I alone! Hold the keys to the universe and while I’m holding these keys I am being cooled by the pioneer mini split.
Reviewed in the United States on March 4, 2026 by Sean Paul Crumbliss

  • Heat And Air unit
Style: 18000 BTU - 230V
Loved this heat and air unit. Runs lack a charm! Fulfilling its purpose! Would highly recommend!
Reviewed in the United States on December 9, 2025 by Joan Hines

  • Do NOT BUY A PIONEER! I BOUGHT MINE HERE BIG MISTAKE!!!!!
Style: 18000 BTU - 230V
DO NOT ORDER ANY MINI SPLITS FROM PIONEER! They are manufactured by PARKER DAVIS! I BOUGHT ONE AND THEY WILL NOT STAND BY THE WARRENTY! IT QUIT LESS THEN A YEAR AND HAD MULTIPLE PROBLEMS BEFORE THAT! THERE CUSTOMER SERVICE WAS THE WORST I HAVE EVER SEEN. SEEK ANOTHER BRAND! THIS HAS COST ME HUNDREDS OF DOLLARS! ... show more
Reviewed in the United States on December 14, 2025 by Tammy Ambrose

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