Product Details

  • Ultra Low Ambient Hyperformance™ Ductless Mini Split Hyper Heat Pump System
  • Cooling capacity: 18,000 BTU/H (1.5 Ton) with 20.5 SEER2 / 13.2 EER2 efficiency
  • Heating capacity: 18,000 BTU/H (1.5 Ton) with 9.5 HSPF2 / 3.51 COP efficiency
  • Voltage: 208/230V, 60Hz, 1Ph
  • High Wall Mounted Air Conditioning & Heating System
  • Variable Speed DC Inverter Operation Mode
  • Hyper Heat Unit (Continues heating in -22°F weather)
  • Wireless Internet Access Included (Via Free Smartphone App)

What’s Included:

  • Indoor Unit
  • Outdoor Unit
  • Wireless Remote Control (with wall holder and batteries)
  • Internet Control Module
  • Copper Lines*
  • Signal Cable Between Units*
  • Drain for indoor/outdoor
  • Wall Passage Sleeve
  • Putty for Wall Hole
  • Leak Guard Sealer
  • Wrapping Tape
  • Installation Manual
    User’s Manual

Factory Warranty:

  • 5 years Warranty for Parts
  • 5 years Warranty for Compressor


The installation kit is necessary for the system to function. Do not select the “Without Installation Kit” option from the dropdown unless you are providing one yourself. The installation kit is: copper refrigeration lines, communication wire between indoor and outdoor unit, 10 ft drain hose, wall cap, sleeve, and putty.

Pioneer Hyperformance – Hyper Heat Pump Systems

Introducing Pioneer® WYF-25 Hyperformance™, our revolutionary series of ductless mini split heat pumps that redefines year-round comfort. With Hyperformance™, you can enjoy exceptional heating and cooling performance in any weather condition, including bone-chilling temperatures as low as -22°F.

Engineered with cutting-edge technology, Hyperformance™ retains up to an impressive 88% of its heating capacity, even in low single-digit weather. Say goodbye to compromised warmth and welcome reliable comfort no matter how cold it gets outside. This system is designed to exceed expectations and keep you cozy when you need it most. Not only does Hyperformance™ excel in performance, but it also boasts a high average 23 SEER2 rating, guaranteeing energy efficiency and helping you save on utility bills. You can experience ultimate comfort without compromising your environmental responsibility or breaking the bank.

As a part of the Hyperformance™ series, this ductless mini split heat pump offers a sleek and modern design that seamlessly integrates into any space. Versatile installation options make it suitable for a wide range of applications, from residential homes to offices and other commercial settings. Enjoy precise temperature control, even heat distribution, and the peaceful operation of our advanced heat pump technology. By choosing Hyperformance™, you also gain access to various rebates and incentives. Take advantage of these cost-saving opportunities and maximize the value of your investment. Thanks to the minimal power draw, this system pays for itself in no time after making the switch.

Don’t settle for ordinary heating and cooling solutions. Upgrade to Hyperformance™, the pinnacle of comfort and efficiency. Embrace the power of innovation, reliability, and cost-effectiveness, and transform your space into the perfect sanctuary of year-round comfort today.

Performance Data

  • Power Supply: 208~230V, 60Hz, 1Ph
  • Cooling Rated Capacity (BTU/hr): 18,000 (4,500 ~ 20,000)
  • Rated Power Input (Cooling): 1,360W
  • Rated Current (Cooling): 6.0A
  • Cooling SEER2: 20.5 BTU/W.h
  • Cooling EER2: 13.2 BTU/W.h
  • Heating Rated Capacity (BTU/hr): 19,000 (5,500 ~ 23,000)
  • Rated Power Input (Heating): 1,620W
  • Rated Current (Heating): 7.2A
  • Heating HSPF2 (Region IV/V): 10.5 / 9.5 BTU/W.h
  • Heating C.O.P.2 (47°F/5°F): 3.51 / 1.85 W/W
  • Refrigerant Type/Weight: R410A/1.9kg
  • Recommended Application Area: 350~775 Sq.Ft

Indoor Unit Data

  • Part Number: WF018GHFI25HLH
  • Air Flow (Hi/Med/Lo): 559 / 470 / 382 CFM
  • Sound Level (Turbo/Hi/Med/Lo/Mute): 48/45/41/39/35 dB(A)
  • Net Dimensions (WDH): 44-1/2 x 9 x 12-3/8 Inches
  • Carton Dimensions (WDH): 47 x 15 x 12-7/8 Inches
  • Net / Gross Weight: 29.7 / 35.2 Lbs

Outdoor Unit Data

  • Part Number: YN018GHFI25RPH
  • Sound Level: 58 dB(A)
  • Net Dimensions (WDH): 33-7/8 x 12-1/4 x 25-5/8 Inches
  • Carton Dimensions (WDH): 39-1/8 x 17-1/2 x 28-3/4 Inches
  • Net / Gross Weight: 101.2 / 110 lbs
  • Electrical Circuit Size: 20A (double-pole)

Additional information



Suitable Area

350~775 Sq.F

Refrigerant Type


INDOOR UNIT Net Dimensions (WDH)

44”-1/2 x 12”-3/8 x 9” Inches

OUTDOOR UNIT Net Dimensions (WDH)

33”-7/8 x 12”-1/4 x 25”-5/8 Inches



Series Technical Brochure       Product Brochure 

      User & Installation Manual

       Service Manual

       AHRI Certificate

      Energy Guide


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