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Internet # 311817747

Model # WYS018GMFI22RL-16

Store SKU # 1004685778

18,000 BTU 1.5 Ton 23.7 SEER2 Ductless Mini Split ENERGY STAR Inverter++ Wall-Mounted Air Conditioner Heat Pump 208/230V

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  • Ductless AC system with a heat pump ensures energy-efficient use
  • Variable fan speed delivers enhanced performance
  • Remote control allows for convenient operation
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Product Details

About This Product

For full technical specs and other information, please refer to the pdhvac website. Pioneer's newest WYS series wall mount mini split ductless Inverter++ air conditioning and heat pump system allows heating or cooling any contiguous area, quietly, effectively and efficiently. Pioneer brand WYS series ductless split heat pump. WYS is a DC Inverter driven system with variable speed compressor, providing very high efficiency levels. Included wireless remote digital controller allows the users easily select among the 4 operating modes; cooling, heating, dehumidification and ventilation. Additionally, an automatic switch-over mode is available for totally automatic operation through it's on board computer. A timer function allows the user to set the system to start or stop running at a certain time. Night mode function automatically adopts the temperature settings to the naturally changing body temperature levels during the night. Auto restart function memorizes all settings in case of a temporary power failure and restarts the system to continue running the same way after the power is reconnected. An optional Cloud programmable wireless Internet remote access function is also available. Smart buyers choose Pioneer brand DC Inverter++ split systems for their top quality, reliability and performance, available at extremely affordable prices.


  • Cooling capacity (range): 18,000 (6,935 to 20,000) BTU/h, cooling efficiency: 23.7 SEER2/13.5 EER2
  • Heating capacity (range): 18,000 (6,615 to 21,000) BTU/h, heating efficiency: 10.3 HSPF2/3.74 C.O.P.
  • Voltage: 208-230-Volt, 60 Hz, 1-phase
  • Complete system set including: indoor (fan coil) section, outdoor (condenser) section, wireless remote controller with optional Wi-Fi, 16 ft. L line set with other installation accessories
  • Unsurpassed support hotline covering installation, use, troubleshooting, warranty and parts issues
  • Low ambient system can heat down to -13°F ambient outdoor temperatures
  • Pioneer is the best choice for pros and homeowners with the highest ratings for consumer satisfaction
  • Certified by: UL, AHRI, DOE for safety, performance and efficiency
  • WYS Inverter++ product family is available in different capacities from 9,000 BTU/hour to 24,000 BTU/hour for various residential and light commercial applications
  • Built with the latest technologies using pulse width modulation driven DC inverter compressor and variable speed DC inverter fan motors for high performance and low power consumption
  • Pre-charged outdoor unit, accommodating refrigerant line lengths up to 25 ft. per circuit
  • Energy Star
  • Click here for more information on Electronic Recycling Programs
  • Return Policy
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Product Information

Internet # 311817747

Model # WYS018GMFI22RL-16

Store SKU # 1004685778



Air handler depth (in.)


Air handler height (in.)


Air handler width (in.)


Condenser depth (in.)


Condenser height (in.)


Condenser width (in.)



Air direction/circulation


Air handler weight (lb.)


Amperage (A)

6.1 A

BTU Cooling Rating

18000 BTU

BTU Heat Rating

18000 BTU

Color Family




Condenser weight (lb.)


Coverage Area (sq. ft.)


Decibel (Sound) Rating

34 dBA

Decibel Rating

34 dBA

Filter Type



Accessories, Heater, Mounting Hardware, Remote Control, Self-diagnostic tools

Line Set Length (Ft.)

16 ft

Mini Split Features

Auto cool, Defrost, Ductless, Fan only option, Overload protection, Sleep setting, Timer

Minimum Outdoor Temperature (F)


Mount Location

Wall Mount

Number of cool settings


Number of Fan Speeds


Number of Tons

1.5 ton

Pack Size




Voltage (v)


Wattage (watts)


Zone Capacity

1 Zone

Warranty / Certifications

Certifications and Listings

AHRI Certified, Energy Star, ISO Certified, UL Listed

Manufacturer Warranty

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

Seasonal Energy Efficiency Ratio (SEER)


Questions & Answers

Q:Compatible wifi module for this unit? I ordered 858132006540 (Wireless Internet Access & Control Module for Pioneer® Diamante WYT Series Systems) as noted in some of the questions and it does not seems to be compatible with this unit. Please advise
by|Jul 16, 2024
0 Answer
Answer This Question
Q:Can you use 20a breaker?
by|Jul 15, 2024
1 Answer
Answer This Question

A:  See above PRODUCT DETAILS tab and find the active link for PRODUCT BROCHURE. Click on it and download for all technical specks.

by|Jul 16, 2024
Q:im interested but i will need the 25 foot freon lines.is that unit on sale too?
by|Jul 11, 2024
1 Answer
Answer This Question

A:  See all available customization options for line sets and others at pioneerminisplit com and/ or call 800-243-0340 while there for any other questions you have.

by|Jul 16, 2024
Q:What are the line sizes 25ft
by|Jul 10, 2024
1 Answer
Answer This Question

A:  Standard included in this price is 16'.. If you need longer sets, you need to have pioneer customize it for you. See your available options at pioeerminisplit com

by|Jul 16, 2024
Showing 1-4 of 226

Customer Reviews

4.7 out of 5

  • 4.7 out of 137 reviews
  • 88% recommend this product
Filter by:
Showing 1-10 of 137 reviews
Outstanding Pioneer Mini-Split AC & Heating System
After we completed the construction of our 117 square foot pottery studio in our Arizona back yard, we needed to install heat and air conditioning. After much research, we chose this unit. Reviews were great on it, we found it manufactured with quality components and looked fantastic when installed. With the AC on, it puts out very cold air and when we switched to heat, the warm air was very nice. Loved it. Appearance after installation was great. Very Quiet! Hire a AC tech to install it !
    • Recommended
    1 found this review helpful
    The Best unit ever!!!
    This unit was delivered promptly and was very easy to install ,great directions.I highly recommend the Pioneer 24,000 BTU unit!! We have installed one in our upstairs and downstairs and we are very impressed!!!I would definitely buy again.
      • Recommended
      Pioneer trusted worldwide, best value here!
      I've travelled to many tropical countries in Asia, the mini splits are mostly Pioneer and they always worked well. I am a capable diy'r with strong technical skills, my family member is an electrician. After a $150 vacuum pump and a few youtube vids this thing was a cakewalk to install professionally. The Pioneer website provides extremely good tech support via chat. This is one of my best purchases and has saved me thousands of dollars.
        • Recommended
        5 found this review helpful
        We put this in the smoking loung of our cigar store. The room is 550sq ft and it works awesome!! Easy to program, easy to control. Still need to connect it to WiFi. We purchased it from here but had a local HVAC company instll. Still need to finish the rest of the wall so I will update photos when finished!!
          • Recommended
          3 found this review helpful
          Great system, tricky install
          So far this mini split is performing well and the build quality is great. My only negative feedback is that the installation guide could use more detail- it seemed to leave some key details out. I'd rather it be twice as long but not leave me guessing. I had hoped to install this completely by myself but had to call in a professional for the final few steps.
            • Recommended
            1 found this review helpful
            Review of Pioneer Energy-Star 12,000 BTU heat pump
            I installed this myself, over a period of three days. Everything went very well, installation was a breeze. Installation was in a 39 foot 5th wheel trailer. With an outside temp of 81 degrees and a 72 degree setting on automatic, the unit only pulls 6 amps, so it should prove to be very economical. Cooling RV's with the 15000 BTU roof units is horribly inefficient and this is the answer:-) The 24 DB interior sound level on this is incredible as you can hardly hear it in operation
              • Recommended
              2 found this review helpful
              Awesome unit for a 20x20 insulated garage!
              I have a finished (8' ceiling), insulated (Including the 16' garage door small 20x20 garage that I do a lot of work in. I was looking for a unit that would be relatively economical to operate, operate on 110/115 hose currant so I wouldn't have to drop an expensive 220 line and keep me reasonable cool & dry in the Saint Louis summer and warm in the summer. I installed this unit myself, only one hole has to be drilled into the wall on either end of the unit (Actually behind the unit so you don't see it). Very straight forward install. I DID have a HVAC guy come out and sign off on my install for warranty purposes. I installed this 18 months ago, so two summers and now going on my second winter. I love this thing! In the summer I set it at 79-82 and it keeps the garage DRY. I can go cooler if needed. For the winter I wish the temperature would go down to say the middle 40's instead of 62. However, since the temp reads close to the ceiling, 62 is actually about 54-56 at people level. The ONLY issue: When it gets really cold, single numbers and below it's my understanding you need to shut the system down so it doesn't freeze up. I run my portable Buddy propane heater on a 20 pound tank usually on low (4000BTU) that keeps the garage in the middle to low 40's. Overall a GREAT unit for 400 square feet
                • Recommended
                6 found this review helpful
                This was my first mini split install. Watched several you tube videos, so it went pretty well. H...
                This was my first mini split install. Watched several you tube videos, so it went pretty well. Had the lines cut and flared, system vacuumed by a friend who is a HVAC guy. Now this system works great. Cools our house to a comfortable temp just on low. Definitely would recommend.
                • Verified Purchase
                • Recommended
                2 found this review helpful
                Great installation instructions and video
                I purchased this kit on sale; great value. I'm not any kind of technician, but I have tools and watched the installation video several times, read the instructions, bought a vacuum pump and gauges online. It works great! Very happy with Pioneer. Will definitely bring adding another one to an addition we built.
                  • Recommended
                  Inside fan noisier than expected. Had it about a month, does blow cold air and works well.
                  • Verified Purchase
                  Showing 1-10 of 137 reviews