Pioneer 18,000 BTU 19 SEER2 Ductless Mini-Split Inverter+ Air Conditioner Heat Pump System Full Set 230V - WYS018GMFI20RL-10
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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
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Customizable length copper line set with flare connections
- AHRI Estimated Annual Operating Costs:
- Cooling: $125.00
- Heating: $397.00
Included
- Indoor Unit
- Outdoor Unit
- Wireless Remote Control
- Various Installation Kit Options Available
- Flare Connection Leak Guard Sealer
- Installation Manual
- User’s Manual
What our Experts Think
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Perfect balance of power for medium–large spaces
This 18,000 BTU 19 SEER2 ductless mini‑split full set delivers strong cooling and heating capacity that’s well‑suited for ≈400–650 sq ft rooms like living areas, open plans, or dens.
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Above‑baseline efficiency (19 SEER2 + 10.5 EER2)
19 SEER2 performance improves energy usage over older or standard systems, helping to reduce operating costs while providing year‑round comfort.
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Inverter + heat pump technology
The variable‑speed DC inverter ensures precise temperature control, quieter cycling, and quicker comfort recovery compared with fixed‑speed units.
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True all‑season HVAC performance
This system functions as both cooling and heating, with rated 18,800 BTU heating capacity and strong HSPF2 efficiency, removing the need for separate heating equipment.
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Quiet and comfortable airflow
Indoor unit sound levels (~30–44 dB) keep operation unobtrusive in bedrooms or shared spaces, while airflow (~388 CFM max) keeps comfort even throughout the room.
Q&A
Q: What room size is this 18,000 BTU mini split ideal for?
A: Perfect for medium to large rooms (approx. 600–900 sq. ft.), such as living areas, offices, or open-plan spaces.
Q: Does it provide both cooling and heating?
A: Yes, this inverter+ heat pump delivers efficient year-round cooling and heating.
Q: How energy-efficient is the 19 SEER2 rating?
A: With 19 SEER2, it provides solid energy efficiency while reducing electricity costs.
Q: What voltage does it require?
A: Designed for 208–230V single-phase power.
Q: What is included in the full set?
A: Includes indoor high-wall unit, outdoor condenser, and pre-charged installation kit for convenient setup.
Q: Does it support Wi-Fi or smart control?
A: Wi-Fi support may be available with compatible modules for remote operation and scheduling.
Q: How quiet is the indoor unit?
A: Operates quietly, typically 32–40 dB, suitable for bedrooms, offices, or living spaces.
Q: What comfort and usability features are included?
A: Turbo mode, ECO mode, sleep mode, self-cleaning, auto restart, timer, and multi-directional airflow for consistent comfort.
Maintenance Tips
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Clean washable air filters every 2–4 weeks – Maintains optimal airflow and 19 SEER2 efficiency for 600–900 sq ft areas
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Run self-clean function regularly – Prevents mold, bacteria, and odor buildup inside the indoor unit
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Keep indoor & outdoor units free of dust and debris – Ensures consistent airflow and peak heat exchange
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Check and clear condensate drain line – Prevents leaks and water damage
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Maintain 2–3 ft clearance around outdoor unit – Supports efficient cooling/heating performance
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Inspect refrigerant lines annually – Ensures leak-free operation and reliable capacity
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Use ECO, Sleep & Wi-Fi smart modes (if available) – Reduces compressor wear and lowers energy consumption
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Schedule yearly professional servicing – Maximizes inverter efficiency and extends system lifespan
Damage 
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