Pioneer® 18,000 BTU 19 SEER2 Ductless Mini-Split Inverter+ Air Conditioner Heat Pump System Full Set 230V

Pioneer® 18,000 BTU 19 SEER2 Ductless Mini-Split Inverter+ Air Conditioner Heat Pump System Full Set 230V
Pioneer® 18,000 BTU 19 SEER2 Ductless Mini-Split Inverter+ Air Conditioner Heat Pump System Full Set 230V
Pioneer® 18,000 BTU 19 SEER2 Ductless Mini-Split Inverter+ Air Conditioner Heat Pump System Full Set 230V
Pioneer® 18,000 BTU 19 SEER2 Ductless Mini-Split Inverter+ Air Conditioner Heat Pump System Full Set 230V
Pioneer® 18,000 BTU 19 SEER2 Ductless Mini-Split Inverter+ Air Conditioner Heat Pump System Full Set 230V
Pioneer® 18,000 BTU 19 SEER2 Ductless Mini-Split Inverter+ Air Conditioner Heat Pump System Full Set 230V
Pioneer® 18,000 BTU 19 SEER2 Ductless Mini-Split Inverter+ Air Conditioner Heat Pump System Full Set 230V

Pioneer® 18,000 BTU 19 SEER2 Ductless Mini-Split Inverter+ Air Conditioner Heat Pump System Full Set 230V


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Regular price $1,329.00 Sale price $1,053.00 Save $276

Installation Kit Options:



  • High Efficiency Quantum Series Inverter+ ductless mini split heat pump system
     inverter and air conditioner heat pump system full set
  • Cooling capacity: 18,000 BTU/H with 19 SEER2 / 10.5 EER2 efficiency
  • Heating capacity: 18,800 BTU/H with 8.7 HSPF2 / 2.93 COP2 efficiency
  • Voltage: 208~230V, 60Hz, 1Ph
  • High Wall Mounted Air Conditioning & Heating System
  • Variable Speed DC high-efficiency Inverter Operation Mode
  • Customizable length copper line set with flare connections
  • AHRI Estimated Annual Operating Costs:
    • Cooling: $125.00
    • Heating: $397.00

R410A Pre-Charged Outdoor Unit, accommodating refrigerant line lengths up to 25 ft. per circuit.


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.

Wall-Mounted Mini Split

Quantum Series Inverter+ (20 SEER) and Inverter++ (22 SEER)

At Pioneer Mini Split, we offer variable capacity ductless wall-mounted mini split systems, available with different efficiency ratings and in a variety of capacities for simple installation and great single-zone comfort. Our ductless mini split wall-mounted air conditioners and heat pumps come with a convenient remote controller conveys cooling, heating, dehumidification, and ventilation requests to the wall-mount ductless mini split system, while automatic air-sweeping louvers, automatically varying air flow, and capacity adjustments keep the zone at the ultimate comfort level. This results in minimal electrical consumption for a more efficient ductless wall air conditioner and heating system. Check out our selection of wall-mounted heating and cooling units today!

More details about Pioneer® WYS Series

What's Included

  • Indoor Unit
  • Outdoor Unit
  • Wireless Remote Control
  • Various Installation Kit Options Available
  • Flare Connection Leak Guard Sealer
  • Installation Manual
  • User’s Manual
  • Manufacturer Warranty

Our Guarantee

  • 5 year parts limited warranty
  • 5 year compressor limited warranty



  • Front Desk Control
    With a smart control board, Pioneer air conditioners can be turned on/off via long distance control signals.
  • 46° F Heating

  • Refrigerant Leakage Detect 
    Indoor unit shows error code "EC" and stops automatically when refrigerant leakage is detected. This protects the compressor from high temperature damage due to refrigerant leakage.
  • Anti-cold Air Function 
    Indoor fan speed is regulated automatically from the lowest grade to the setting grade according to evaporator temperature when the unit just starts heating operation. This function can prevent cold air blowing out to avoid discomfort to the users.
  • Emergency Using

  • Low Ambient Cooling 
    With built-in low ambient kit or special designed PCB, outdoor fan speeds can be changed automatically according to condensation temperature. The air conditioner can run cooling operation even when the outdoor ambient temperature is down to -15°C.
  • Follow Me 
    Temperature sensor built in the remote controller will sense it’s surrounding temperature. The unit will adjust the room temperature more accurately to give you comfort.


  • Wired Controller
    Compared with infrared remote controller, wired controller can be fixed on the wall and makes air conditioner control more convenient.
  • Remote in Engineer Mode

  • Central Control Management
    The centralized controller is a multi-functional device that can control up to 64 indoor units within a maximum connection length of 3.90 Ft.

Technical Information


Pioneer Mini Split Certifications

Performance Data

  • Power Supply: 208~230V, 60Hz, 1Ph
  • Cooling Rated Capacity: 18,000 BTU/h
  • Cooling Capacity Range: 3,900~20,000 BTU/h
  • Cooling SEER2: 19 BTU/W.h
  • Cooling EER2: 10.5 BTU /W.h
  • Heating Rated Capacity: 18,800 BTU/h
  • Heating Capacity Range: 6,300~19,400 BTU/h
  • Heating HSPF2 (Region IV/V): 8.7 / 6.8 BTU/W.h
  • Heating C.O.P.2 (47°F/5°F): 2.93 / 2.1 W/W
  • Refrigerant Type: R410A/47.6 oz.
  • Suitable Area: 400~650 Sq.F

Indoor Unit Data

  • Model Number: WS018GMFI20HLD
  • Air Flow (Hi/Med/Lo): 388 / 259 / 218 CFM
  • Sound Level (Hi/Med/Lo): 43.5 / 34.5 / 30.0 dB(A)
  • Net Dimensions (WDH): 38" x 8"-1/2 x 12"-1/2
  • Carton Dimensions (WDH): 41"-1/8 x 12" x 16"-1/8
  • Net / Gross Weight: 23.8 / 31.5 lbs

Outdoor Unit Data

  • Model Number: YN018GMFI20RPD
  • Sound Level: 57 dB(A)
  • Net Dimensions (WDH): 31"-5/8 x 13" x 21"-7/8
  • Carton Dimensions (WDH): 36" x 14"-5/8 x 24"-1/4
  • Net / Gross Weight: 73.9 / 79.8 lbs
  • Breaker Needed: 20A (double-pole)

Manuals & Downloads

Free Shipping For All Orders Over $49


For a Limited Time we offer free shipping on All Orders Above $49 by Standard Ground or delivered by Freight (LTL) to the 48 contiguous states. Free shipping offer does not apply to Alaska, Hawaii, or any international destination. Free shipping eligibility is noted on the product page, above the price.

Click here for information on Returns and Refunds

Shipping Details

We only ship to the 48 contiguous United States. No shipments to APO/FPO addresses, AK, HI, PR or other US Territories. No international shipments. Due to the size and the weight of our equipment, we can only utilize well known freight companies for shipping. Each shipment will be palletized, strapped down and wrapped in stretch film to protect against damages during transit.

Upon arrival you may ask the driver to break down the palette into individual cartons to unload the goods from the truck easily. We generally include Lift Gate service. This will arrive as curb side delivery. Trucker will unload the goods from the truck to ground level. If you must have inside delivery service, there will be an additional charge which needs to be paid separately and coordinated with the freight company. We also allow free pickup from our main distribution warehouse, located in Miami area. Equipment we sell is not suitable for express or courier shipping because of their weight as well as high risk of damages.

Due to higher than expected order volume and busy sales season, larger orders may take an extra 3-5 days to be prepared for shipment. We are working around-the-clock to ship out all orders in a timely manner, and will communicate with you if there are any unexpected delays or questions.

We prepare each shipment within 72 hours after the receipt of payment (only during weekdays). Trucking companies usually pick up same day or a day after we call them that the shipment is ready. The transit may take any time between 5 to 8 business days and in rare cases up to 12 days.

We will provide tracking information after shipment. Please contact us in case of any shipment delays. CHECK YOUR INFORMATION CAREFULLY TO SUBMIT THE CORRECT DELIVERY ADDRESS, UPDATED EMAIL AND A VALID PHONE NUMBER with your order. Someone must be present to receive the cargo at the time of delivery. Delivery company will call your phone number to setup a delivery appointment for residential deliveries. If your phone number is not valid, the cargo can not be delivered and will be returned at your expense within 3 days of arrival. If the delivery is refused or can not be delivered, it will be handled as returned merchandise.

Upon arrival, count all cartons and compare with the number stated on the delivery receipt before signing. Open the cartons and inspect the goods carefully for any damages. All products have been inspected under strict ISO regulated facilities and leave our warehouse in perfect condition. Report any shipping damages to the freight carrier on the delivery receipt and file a claim. Also contact us with the description of damages and pictures, etc. Although rare, certain freight damages can occur and we are here to help.

We carry all necessary replacement and service parts and components in large quantities and make them available during and after the warranty period.

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Ask a Question
  • What ambient temp does the heat pump work down to I live in northeast

    This continues heating down to -13°F outside temperatures.

  • How does the auto setting work?

    AUTO will have the unit switching by itself from COOL to HEAT or vice-versa, depending on the set temp. vs room temp.

  • How many square feet will this work for?

    For typical conditions, we recommend this unit for managing spaces between 400 and 650 square feet.

  • What are the dimensions of the inside unit on the 18,000

    Net Dimensions (WDH): 38.0 x 8.46 x 12.56 Inches

  • What size wire and breaker do I need to get for this unit?

    This would take a 20A double-pole breaker. The corresponding wire would be 12 AWG, with 2 hots and a ground, no neutral.

  • What is the EER on a 18K BTU 230V Pioneer mini split with SEER 19.0 and HSPF 10.0? Thank you!

    The EER rating on this particular model is 11.

  • what size wiring does it require for power

    This would take a 20A double-pole breaker with 12 AWG wire, the wire is 2 hots and a ground with no neutral.

  • what size are all the connecting nuts/fittings on the line set and/or condenser. Basically, I interested so I can get the appropriate crawfoot socket size for use with a torque wrench.

    This system uses 1/4" and 1/2" diameter lines and those would have wrench/tool sizes of 5/8" and 15/16" respectively.

  • How much square footage will 18,000 btu take care of? Heat and cool?

    We generally recommend that capacity for managing spaces up to 650 square feet.

  • If you order the 10ft. lines, do they come flared with nut ready for installation?

    Yes, all lineset selections come pre-flared and ready to connect.

  • What size breaker does this unit need?

    This would take a 20A double-pole breaker with 12 AWG wire.

  • Can I control this unit through an app on my phone?

    Yes you can, you would to add in this USB device.

  • Since i am ordering this unit with a 25' line will it automatically be 1/2" in diameter?

    Yes, we will always match the correct lineset for you when you select the option from the dropdown menu.

  • What does SEER MEAN

    This would be the efficiency of the system, the higher the better. Read more here:

  • Will it heat below zero

    This unit will not heat below 0°F, it stops at 5°F. We have two other series that are low-ambient and can heat down to -13°F. They are Diamante and Inverter++. Please click here to see them.

  • Is the unit operation on full capacity, off, or can it deliver reduced capacity on light load days?

    This is a variable speed inverter that will work only as much as it needs to in order to reach and keep the set temperature in the room.

  • what size is the pipes as I need to buy 25' lines.

    This model uses 1/4"-1/2" diameter lines.

  • What is the power supply for the indoor wall unit? Is the wiring for that unit included? Does it run from the condenser to the wall unit with the refrigerant lines?

    The indoor unit is powered by the outdoor unit via the supplied communication cable. It runs with the copper lines. This outdoor unit takes a 20A double pole breaker.

  • The manual says that the nominal hose length is 16’. How much efficiency will it lose using a 10’ hose and will you need to drain some of the precharge?

    The amount of pre-charge is optimized for 16 ft, but any run between 5 and 25 ft will not require adjustment of the refrigerant levels.

  • IS there any way to lock the remote so kids cannot adjust set temp?

    One option for that is to hide the remote and instead control the system using your smartphone by implementing the WiFi Smart Controller Module.

  • do you sell pre charged line sets for the PIONEER Air Conditioner WYS018G-19?

    The outside unit contains the precharge, the linesets themselves are not precharged and require vacuuming before releasing from the outside unit.

  • How many square feet does it cool or heat?

    For regular applications, this particular unit is suitable for managing up to 650 sq ft.

  • What size copper line included ?

    The diameter of lines for this particular unit is 1/4"-1/2". The length would be selected from the "Installation Kit Options" dropdown menu above the Add to Cart button.

  • Does the unit need to use gravity to drain? Is there an option for having the discharge above the level the level the indoor unit is installed?

    By default, this unit drains by gravity. If this will not be feasible, you can consider adding in a condensate pump.

  • How many Amps does the outdoor unit need? How many Amps does the into unit need?

    The outside unit would take a 20A double-pole breaker. The inside unit draws power from the outside unit via the communication cable. The entire system is rated 7.4A in cooling and heating.

  • Does this unit work as a stand-alone dehumidfier as well? WYS018GMFI19RL-16

    It is not designed to operate like a stand alone dehumidifier, but moreso to assist with driving down humidity quickly. It will not get the humidity to a certain percentage.

  • i'm looking at the WYS018GMFI19RL-16 unit. What options do I need to complete a basic installation?

    The system comes with everything that is needed except for the electricals and the necessary tools. Electricals would include things like breaker, disconnect box, whip, wire from breaker to condenser, etc. Some specialty tools are needed, like pressure gauges and HVAC pump. The system is relatively straightforward to install, the main technical steps being electrical hookup and vacuuming of the lines with a pressure check afterwards.

  • Is the breaker a 20amp 220v??

    This would take a 20A double-pole breaker. The corresponding wire would be 12 AWG, with 2 hots and a ground, no neutral.

  • What is the tonnage on this unit

    1.5 Tons.

  • At what height should the indoor unit be mounted

    Typically between 6.5 to 8 ft off the ground. If you have shorter ceilings then 6 inches under the ceiling.

  • How far off the ceiling does the inside unit need to be

    We recommend 4-6 inches below ceiling. 6 is ideal.

  • Is this model energy star rated

    This model is not Energy-Star rated. The Energy-Star version of this model would be SKU: WYS018GMFI22RL.