MRCOOL
MRCOOL Universal Series Heat Pump Inverter Condenser
3 Ton | SEER2 Up to 18 | R-454B | 208/230V
- 36000 BTU cooling capacity
- Up to Up to 18 SEER2 rated efficiency
- Twin-Rotary compressor
- Uses R-454B refrigerant
Key Specifications
Product Overview
The MRCOOL® Universal® Series 36K DC Inverter Heat Pump Condenser is designed to deliver dependable, high-efficiency heating and cooling—even in the most extreme weather conditions. Whether you're facing sweltering summer heat or freezing winter temperatures, this unit ensures steady, year-round comfort. With an impressive 18 SEER2 efficiency rating, it offers substantial energy savings without compromising performance, making it an ideal replacement for outdated, energy-hungry systems.
Engineered for flexibility and convenience, the 36K Universal® condenser features a compact footprint that allows for installation in space-constrained areas. Its smaller size makes it an excellent fit for homes with limited outdoor clearance while still delivering powerful, whole-home comfort.
Installation is quick and hassle-free—especially when paired with the optional MRCOOL® NO-VAC® Quick Connect® line set (sold separately). This innovative, pre-charged line set eliminates the need for traditional vacuuming, flaring, or refrigerant handling, reducing installation time, labor costs, and complexity.
At the heart of the system is advanced DC inverter technology, which allows the compressor to continuously modulate output based on your home’s real-time temperature demands. Unlike traditional systems that cycle on and off, this inverter-driven condenser maintains more consistent temperatures, reduces power consumption, minimizes component wear, and keeps noise levels to a minimum.
Whether you're upgrading an aging system or installing a new HVAC solution, the MRCOOL® Universal® Series 36K Heat Pump Condenser offers a winning combination of efficiency, performance, and quiet operation. To ensure long-lasting confidence, it’s backed by a 10-year parts warranty and a 2-year limited labor warranty.
Additional specifications
| UPC | 840255587891 |
|---|---|
| Series | Universal R-454B |
| Refrigerant charge (oz) | 126.99 |
| Heating capacity (BTU/h) | 37000 |
| HSPF2 (region V) | 8.2 |
| Cycle (Hz) | 60 |
| Min circuit ampacity (A) | 29 |
| Max fuse / breaker (A) | 30 |
| Inverter | DC |
| Metering device | EXV |
| Max line set length (ft) | 246 |
| UL listed | Yes |
| ETL listed | Yes |
| Parts warranty (years) | 10 Years |
| Shipping W x H x D (in) | 45.08 x 42.52 x 19.68 |
| Shipping weight (lbs) | 235.23 |
Documents
- Installation manual (PDF)
- Brochure (PDF)
- Warranty (PDF)
- AHRI certificate (PDF)
- EnergyGuide label (PDF)
WARNING: This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.p65warnings.ca.gov.
Technical Specifications
Performance
| System Type | Universal Series Heat Pump |
|---|---|
| Capacity | 36000 BTU |
| Tonnage | 3 Ton |
| Compressor / Stages | Twin-Rotary |
| SEER2 | Up to 18 |
| EER2 | Up to 12 |
| HSPF2 | 10 |
| Sound Level | 63 dBA |
Electrical & Fuel
| Voltage | 208/230V |
|---|---|
| Phase | Single Phase |
| Refrigerant | R-454B |
| Connection Size | Liquid 3/8" / Suction 3/4" |
Physical & Certifications
| Dimensions (W x H x D) | 38.58 x 38.39 x 16.34 |
|---|---|
| Weight | 204.15 lb |
| Color / Finish | Dark Grey |
Shipping & Delivery
Manufacturer Warranty
Covered by MRCOOL's limited warranty. Warranty terms are set by MRCOOL and differ by product line — whether registration is required, and whether the installation has to be performed by a state-licensed HVAC contractor, is not the same across the range. In every case coverage depends on the unit being installed according to MRCOOL's instructions and all applicable codes and permits. MRCOOL's warranty document for this model is the controlling source; ask us and we'll send you the one that applies.
Professional Installation Recommended
Most HVAC equipment must be installed and connected by a licensed professional to remain safe, code-compliant, and eligible for manufacturer warranty coverage. If you're unsure about installation requirements, contact us before you order.
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