Pioneer Multi Zone 18,000 BTU Quantum Series Wall Mount Indoor Section Split Inverter++ Air Conditioner Heat Pump 230V - WS018GMFI22HLE-10

Pioneer Multi Zone 18,000 BTU Quantum Series Wall Mount Indoor Section Split Inverter++ Air Conditioner Heat Pump 230V - WS018GMFI22HLE-10

Inverter++ Variable Speed Multi Split Systems we offer are available in a mix and match fashion and fully user selectable and customizable. Multi Zone Wall Mount Type Split Air Conditioning and Heating System (Indoor Section Only). Variable Speed DC Inverter Operation Mode: Cooling and Heating. Capacity: 18,000 BTU/Hr. (1.5 Ton). Total capacity of the matched indoor units may exceed the available outdoor unit capacity by up to 35% Efficiency Rating: 21 S.E.E.R. Electrical Specification: 208-230 VAC, 1 Phase, 60 Hertz. Customizable length copper line set with flare connections come with this indoor unit.

Compatible Outdoor Units

Matching outdoor units need to be selected and purchased separately. To purchase a multi split system, first determine the outdoor unit required among the 4 kinds of outdoor units we offer as follows:

Total capacity of all indoor units attached should be within the Min. and Max Loading range of the outdoor unit selected.

Not all circuits available on an outdoor units need to be utilized entirely. Some may be kept sealed without an attached indoor unit.

Every order placed is first checked by our engineering and if there are any errors we will contact you and work with you to reselect for a correct matchup.

Please call us or use the Matching Chart document in the Manuals & Downloads tab to help you select the right grouping of indoor units. 

Included

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

What our Experts Think

• Sized for medium rooms (~200–450 sq ft)
  This 12,000 BTU 115 V mini‑split full set is well‑suited for bedrooms, home offices, dens, or small open‑plan areas, providing consistent cooling and heating without oversized capacity.

• Ultra‑high efficiency (22.7 SEER2 + Energy‑Star certified)
  22.7 SEER2 seasonal efficiency delivers notable energy savings and lower operating costs compared with many conventional HVAC systems, with cooling costs ~ $74/year and heating ~ $221/year estimates.

• Inverter++ DC technology for comfort control
  Variable‑speed DC inverter technology ensures precise temperature regulation, quieter cycling, and faster comfort recovery versus fixed‑speed units—improving day‑to‑day performance.

• All‑season heat pump operation
  Provides both cooling and heating, plus dry/ventilation modes in one integrated system, so you don’t need separate equipment across seasons.

• 115 V standard power (easy setup)
  Runs on 110–120 V household circuits, avoiding costly electrical upgrades and simplifying installation in many homes.

• Quiet indoor & outdoor performance
  Indoor sound levels can be as low as ~23 dB, keeping operation unobtrusive, while the outdoor unit runs at ~52.5 dB—comfortable for residential settings.

• Complete full‑set with accessories
  Includes indoor and outdoor units, wireless remote, leak guard sealer, installation manual, and warranty coverage, giving you what’s needed for a standard install.

Q&A

Q: What room size is this 12,000 BTU mini split ideal for?
A: Perfect for small to medium rooms (approx. 350–500 sq. ft.), such as bedrooms, offices, or compact living areas.

Q: Is this unit Energy Star certified?
A: Yes, it is Energy Star certified, ensuring high energy efficiency and lower operating costs.

Q: Does it provide both cooling and heating?
A: Yes, this inverter++ heat pump delivers year-round cooling and heating for consistent comfort.

Q: How energy-efficient is the 22.7 SEER2 rating?
A: With 22.7 SEER2, it provides excellent energy savings while maintaining steady temperatures.

Q: What voltage does it require?
A: Designed for standard 115V single-phase power, suitable for most residential circuits.

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 30–40 dB, ideal 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 optimal comfort.

Q: Is professional installation required?
A: Yes, professional installation is recommended; the pre-charged kit covers standard connections, with additional piping needed for longer runs.

Maintenance Tips

• Clean washable air filters every 2–4 weeks – Maintains optimal airflow and 22.7 SEER2 Energy Star efficiency for 400–600 sq ft areas

• Run self-clean function regularly – Prevents mold, bacteria, and odor buildup inside the indoor unit

• Keep indoor & outdoor units free of dust and debris – Ensures consistent airflow and peak heat exchange

• Check and clear condensate drain line – Prevents leaks and water damage

• Maintain 2–3 ft clearance around outdoor unit – Supports efficient cooling/heating performance

• Inspect refrigerant lines annually – Ensures leak-free operation and reliable capacity

• Use ECO, Sleep & Wi-Fi smart modes (if available) – Reduces compressor wear and lowers energy consumption

• Schedule yearly professional servicing – Maximizes inverter efficiency and extends system lifespan