Product overview
Pioneer Quantum Ultra 4-Zone 36K BTU Heat Pump System is a complete 4-zone ductless mini split heat pump package for independent room-by-room comfort. This Quantum Ultra bundle pairs one outdoor condenser with four 9,000 BTU wall-mounted indoor air handlers, giving homes, additions, offices, and light commercial spaces efficient cooling and heating from one matched system.
Why this system works well
- Multi-zone comfort: heat or cool 4 separate areas while giving each indoor unit its own wireless remote and dedicated line-set selection.
- High-efficiency inverter performance: rated at 22.5 SEER2 / 12.0 EER2 for cooling and 9.5 HSPF2 / 3.5 COP2 for heating, with variable-speed inverter compressor and fan technology designed to reduce energy use and temperature swings.
- Cold-weather heating: the ultra low-ambient design can deliver heat at outdoor temperatures down to -13°F, helping the system serve as a year-round comfort solution.
- Smart operation: Wi-Fi enabled controls and included wireless remotes make it easy to adjust each zone.
- Clean wall-mounted design: high-wall indoor sections keep floor space open while delivering quiet, direct comfort where each zone needs it.
System configuration
| Base SKU | WYT040GLSI24M4-9W-9W-9W-9W |
|---|---|
| Indoor combination | 9K + 9K + 9K + 9K |
| Cooling capacity | 35,000 BTU/H nominal; 5,500-41,000 BTU/H operating range |
| Heating capacity | 36,000 BTU/H nominal; 5,500-41,000 BTU/H operating range |
| Efficiency | 22.5 SEER2 / 12.0 EER2 cooling; 9.5 HSPF2 / 3.5 COP2 heating |
| Electrical | 208-230V, 60 Hz, 1 phase |
| Refrigerant | Pre-charged with R-454B for up to 100 ft total combined attached line-set length |
| Certifications | Energy Star, ETL, AHRI, and DOE listed by Pioneer |
What is included
- Outdoor multi-zone condenser section
- Four 9,000 btu wall-mounted indoor air handlers
- Wireless remote controllers with Wi-Fi control support
- Selected insulated flared copper line sets and installation accessories
- Pioneer documentation for installation, service, AHRI certification, and energy guide reference
Line-set options
Choose a line-set length for each indoor air handler before adding to cart. Available choices are None, 10 Ft, 16 Ft, 25 Ft, 33 Ft, and 50 Ft. For this four-zone product, the final selector pairs air handlers #3 and #4 so every line-set combination remains available. If your total combined line-set length is longer than the factory pre-charge allowance, the installing technician may need to add refrigerant according to the installation manual.
Installation note
This is a ductless heat pump system that should be sized, installed, evacuated, leak-tested, and commissioned by a qualified HVAC professional according to local code and Pioneer installation instructions.
Product resources
In-stock systems ship fast and free with curbside freight delivery, typically arriving in 4–10 days. Please inspect each box at delivery and note any damage on the receipt before signing — it keeps any freight claim quick and simple.
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At a glance
Tech specs
| Condenser capacity | 36K BTU |
|---|---|
| Zones / rooms | 4 Zones |
| Mount type | Wall |
| Brand | Pioneer |
Sizing in doubt? Our HVAC experts confirm capacity for your rooms before you order — free. Ask us about utility rebates for high-efficiency heat pumps in your area.
