Product overview
Pioneer Quantum Ultra 2-Zone 21K BTU Heat Pump System is a complete 2-zone ductless mini split heat pump package for independent room-by-room comfort. This Quantum Ultra bundle pairs one outdoor condenser with one 12,000 BTU and one 9,000 BTU wall-mounted indoor air handler, 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 2 separate areas while giving each indoor unit its own wireless remote and dedicated line-set selection.
- High-efficiency inverter performance: rated at 24 SEER / 13.0 EER for cooling and 10 HSPF / 3.5 COP 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 | WYT020GLSI24M2-12W-9W |
|---|---|
| Indoor combination | 12K + 9K |
| Cooling capacity | 18,000 BTU/H nominal; 5,100-18,700 BTU/H operating range |
| Heating capacity | 20,000 BTU/H nominal; 4,900-23,000 BTU/H operating range |
| Efficiency | 24 SEER / 13.0 EER cooling; 10 HSPF / 3.5 COP heating |
| Electrical | 208-230V, 60 Hz, 1 phase |
| Refrigerant | Pre-charged with R-454B for up to 50 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
- One 12,000 btu and one 9,000 btu wall-mounted indoor air handler
- 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. 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 | 21K BTU |
|---|---|
| Zones / rooms | 2 Zones |
| Power | 230 Volt |
| 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.
