Pioneer Quad Split 36000 BTU 3-Ton Quantum Ultra Wi-Fi 22.5 SEER Energy-Star Multi (4) Zone Wall Mount Air Conditioner Heat Pump 230-Volt - WYT040GLSI24M4-9W-9W-9W-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 quad (4) zone heat pump system
- (x4) inside unit cooling capacity: 9,000 BTU/H nominal capacity, condensing system 35,000 BTU/H (Range: 5,500 minimum - 41,000 maximum) with 22.5 SEER2/12.0 EER2 efficiency
- Heating capacity: 36,000 BTU/H nominal (range 5,500 minimum - 41,000 maximum) with 9.5 HSPF2/3.5 COP2 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 100 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
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Comprehensive comfort for four zones (36,000 BTU total)
The Pioneer Quad Split 36000 BTU 3‑Ton Quantum Ultra Wi‑Fi Multi‑Zone System conditions four distinct rooms or areas with independent wall‑mount indoor units—perfect for larger homes needing customized comfort across multiple spaces.
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Ultra‑high efficiency (22.5 SEER2 + Energy‑Star)
Premium seasonal energy efficiency helps significantly reduce electricity costs compared with conventional HVAC systems and meets Energy‑Star expectations for high‑efficiency performance.
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Smart Wi‑Fi control built in
WLAN connectivity lets you adjust temperatures, schedules, and modes from your smartphone, boosting convenience and making energy management easier.
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Inverter++ DC technology for precise comfort
Variable‑speed DC inverter compressor and fan motors deliver smooth, quiet operation with minimal temperature swings vs. fixed‑speed systems.
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All‑season heat pump performance
Efficient cooling in summer and reliable heat in winter—this system can maintain performance even at low outdoor temps (down to ‑13 °F) without auxiliary heat.
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Complete pre‑matched system
Includes outdoor condenser, four indoor wall units, remote controllers, insulated line sets, and installation accessories—reducing compatibility issues and simplifying installation.
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Eco‑friendly refrigerant & flexible line lengths
Pre‑charged with low‑GWP R454B refrigerant and supports up to ~100 ft total lineset, offering flexibility for varied home layouts.
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Quiet, balanced multi‑zone operation
Multi‑zone design with inverter modulation keeps noise low while ensuring consistent, customized comfort in all connected rooms.
Q&A
Q: What room size is this 36,000 BTU quad split mini split ideal for?
A: Ideal for large homes or multiple rooms (approx. 1,200–1,800 sq. ft.), such as living areas, offices, or open-plan layouts.
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: Quad-zone system supports four indoor units with independent temperature control for each zone.
Q: Is this unit Energy Star certified?
A: Yes, it is Energy Star certified for high efficiency and reduced electricity costs.
Q: How energy-efficient is the 22.5 SEER rating?
A: With 22.5 SEER, it provides excellent energy savings while maintaining consistent comfort across all 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 four indoor wall-mount units (all 9,000 BTU), one outdoor condenser, and pre-charged installation kits for each unit.
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 all zones.
Maintenance Tips
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Clean washable air filters every 2–4 weeks – Maintains optimal airflow and 22.5 SEER Energy Star efficiency for multi-zone 1,200–1,500 sq ft coverage
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Run self-clean function regularly – Prevents mold, bacteria, and odor buildup in all four indoor units
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Keep indoor & outdoor units dust- and debris-free – Ensures consistent airflow and peak heat exchange across all zones
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Check and clear condensate drain lines – Prevents leaks and potential 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 multi-zone capacity
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Use ECO, Sleep & Wi-Fi smart modes – Reduces compressor wear and lowers energy consumption
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Schedule annual professional servicing – Maximizes inverter efficiency and extends system lifespan
Damage 
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