Pioneer Dual Split 21000 BTU 1.5-Ton Quantum Ultra Wi-Fi 24 SEER2 Energy-Star Multi (2) Zone Wall Mount Air Conditioner Heat Pump 230-Volt - WYT020GLSI24M2-12W-9W
Pioneer brand multi split heat pump system, complete set. System components include: one multi zone outdoor unit, matching multiple wall mount indoor units, piping and accessory kits and remote controllers. Pioneer Quantum Ultra multi split systems are available in 5 versions; for 2, 3, 4, and 5 zones.
Features
- Ultra-high efficiency inverter++ ductless multi split dual (2) zone heat pump system
- (x1) inside unit cooling capacity: 12,000 BTU/H nominal capacity + (x1) inside unit cooling capacity: 9,000 BTU/H nominal capacity, condensing system 18,000 BTU/H (Range: 5,100 minimum - 18,700 maximum) with 24 SEER/13.0 EER efficiency
- Heating capacity: 20,000 BTU/H nominal (range 4,900 minimum - 23,000 maximum) with 10 HSPF/3.5 COP efficiency
- Voltage: 208 - 230-Volt, 60 hertz, 1 phase (standard household 2 line power, l1-l2-g)
- Energy-Star Certified and Wi-Fi Enabled
- Complete system set including: indoor (fan coil) section, outdoor (condenser) section, wireless remote controller with wi-fi, insulated flared line set with other installation accessories
- Unsurpassed support hotline covering installation, use, troubleshooting, warranty and parts issues
- Ultra low ambient system can heat with high capacity at -13°F ambient outdoor temperatures
- Pre-charged with eco-friendly R454-B refrigerant to support total combined attached lineset lengths up to 50 ft long
- Pioneer is the best choice for pros and homeowners with the highest ratings for consumer satisfaction
- Certified by: ETL, AHRI, DOE for safety, performance and efficiency
- 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
Manuals
What our Experts Think
-
Balanced dual‑zone performance (≈21,000 BTU total)
The Pioneer Dual Split 21000 BTU 1.5‑Ton Quantum Ultra Wi‑Fi Multi Zone System pairs one 12,000 BTU and one 9,000 BTU indoor unit with a single outdoor condenser to comfortably condition two rooms independently—ideal for living rooms + bedrooms or office + guest space setups.
-
Ultra‑high efficiency (24 SEER2 + Energy‑Star)
Seasonal efficiency is among the top in its class, significantly reducing electricity cost compared with conventional HVAC systems and qualifying for many energy rebate programs.
-
Wi‑Fi smart control built in
Integrated Wi‑Fi connectivity lets you adjust temperatures, schedules, and modes remotely from your smartphone—boosting convenience and enabling smarter energy management.
-
Inverter++ DC technology for precise comfort
Variable‑speed compressor and fan motors deliver smooth, responsive temperature control, quieter cycling, and better comfort stability than fixed‑speed units.
-
All‑season heat pump capability
Delivers efficient cooling in summer and dependable heating in winter, with the ability to heat at outdoor temperatures as low as ~‑13 °F—great for varied climates.
-
Complete system with accessories
Includes outdoor condenser, indoor wall‑mount units, wireless remotes, insulated line sets, and installation accessories—simplifying setup with all necessary components.
-
Eco‑friendly refrigerant & cold‑climate readiness
Pre‑charged with low‑GWP R454B refrigerant and designed for ultra‑low ambient operation, supporting comfort and sustainability.
-
Quiet, reliable daily use
Balanced airflow and smart compressor modulation keep operation quiet and stable, ideal for living areas, bedrooms, or home offices.
Q&A
Q: What room size is this 21,000 BTU dual split mini split ideal for?
A: Ideal for medium to large spaces (approx. 700–1,000 sq. ft.), such as living areas, offices, or open-plan rooms.
Q: Does it provide both cooling and heating?
A: Yes, this inverter heat pump delivers efficient year-round cooling and heating for all connected zones.
Q: How many zones does this system support?
A: Dual-zone system supports two indoor units with independent temperature control for each zone.
Q: Is this unit Energy Star certified?
A: Yes, it is Energy Star certified, ensuring high efficiency and lower electricity costs.
Q: How energy-efficient is the 24 SEER2 rating?
A: With 24 SEER2, it provides exceptional energy savings while maintaining consistent comfort across both zones.
Q: Does it support Wi-Fi or smart control?
A: Yes, built-in Wi-Fi allows remote operation, scheduling, and monitoring for each indoor unit via the Pioneer Airlink app.
Q: What voltage does it require?
A: Designed for 208–230V single-phase power.
Q: What is included in the full set?
A: Includes two indoor wall-mount units (12,000 BTU and 9,000 BTU), one outdoor condenser, and pre-charged installation kits for both units.
Q: How quiet are the indoor units?
A: Operates quietly, typically 30–40 dB, suitable for bedrooms, living areas, or offices.
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 both zones.
Maintenance Tips
-
Clean washable air filters every 2–4 weeks – Maintains optimal airflow and 24 SEER2 Energy Star efficiency for multi-zone 700–900 sq ft coverage
-
Run self-clean function regularly – Prevents mold, bacteria, and odor buildup in both indoor units
-
Keep indoor & outdoor units free of dust and debris – Ensures consistent airflow and peak heat exchange across both zones
-
Check and clear condensate drain lines – Prevents leaks and potential 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 multi-zone capacity
-
Use ECO, Sleep & Wi-Fi smart modes – Reduces compressor wear and lowers energy consumption
-
Schedule annual professional servicing – Maximizes inverter efficiency and extends system lifespan
