MRCOOL
MRCOOL DC Inverter 36K BTU 3T, R32, 18 SEER2 Single Phase Packaged Heat Pump
3 Ton | SEER2 18 | R-32 | 208/230V
- 34000 BTU cooling capacity
- Up to 18 SEER2 rated efficiency
- Inverter Rotary compressor
- Uses R-32 refrigerant
Key Specifications
Product Overview
The MRCOOL® 2nd Generation Universal® Series 36K Inverter Packaged Heat Pump is designed to deliver dependable heating and cooling while lowering energy costs and environmental impact.
Built with advanced DC inverter technology, the compressor runs at variable speeds to match your home’s exact needs, maintaining steady comfort without the frequent system cycling seen in older systems. This reduces wear on components, improves efficiency, and helps the unit operate at a whisper-quiet frequency.
With an impressive 18 SEER2 rating, this packaged system significantly reduces energy consumption while still providing strong airflow and performance. It is engineered to handle extreme climates, delivering reliable heating in temperatures as low as –22°F (–30°C) and cooling in conditions as high as 125°F (52°C). No matter the season, homeowners can count on consistent comfort and efficiency.
Environmentally conscious design is another advantage. The Universal® 36K uses R-32 refrigerant, a modern, lower-GWP alternative that reduces environmental impact compared to traditional refrigerants. This makes it a sustainable and forward-thinking choice for today’s homeowners.
Installation is simplified with a versatile multi-position design that supports vertical upflow/downflow and horizontal configurations.
Built for durability, the MRCOOL® Universal® Series 36K is backed by a 10-year parts and labor warranty, giving homeowners confidence in long-term performance. It’s a smart investment in comfort, savings, and sustainability.
Features
- Inverter Technology
- Energy Efficient
- Flexible air return
- Fast heating & cooling
- Intelligent defrosting
- Energy Star Cold Climate Certified
- 10 year labor warranty included
Additional specifications
| UPC | 840255592116 |
|---|---|
| Series | Universal Package R32 |
| Refrigerant charge (oz) | 149.9 |
| Heating capacity (BTU/h) | 34,000 |
| Cycle (Hz) | 60 |
| Min circuit ampacity (A) | 35 |
| Max fuse / breaker (A) | 40 |
| Inverter | Yes |
| Blower motor type | Direct Drive |
| Blower speeds | 10 |
| Metering device | EEV |
| Drain connection (in) | 3/4 |
| Min ambient cooling (F) | 23 |
| Min ambient heating (F) | -22 |
| Aux heater included | No |
| Aux heater available | Yes |
| Aux heater sizes (kW) | 6kW, 9kW, 12kW |
| AHRI certified | yes |
| Parts warranty (years) | 10 Year Parts |
| Shipping W x H x D (in) | 44.6 x 50.78 x 35.94 |
| Shipping weight (lbs) | 545 |
Documents
Technical Specifications
Performance
| System Type | Package Heat Pump |
|---|---|
| Capacity | 34000 BTU |
| Tonnage | 3 Ton |
| Compressor / Stages | Inverter Rotary |
| SEER2 | 18 |
| EER2 | 11.2 |
| HSPF2 | 8.5 |
| Sound Level | 63 dBA |
Electrical & Fuel
| Voltage | 208/230V |
|---|---|
| Phase | Single Phase |
| Refrigerant | R-32 |
Physical & Certifications
| Dimensions (W x H x D) | 44 x 49.25 x 35.44 |
|---|---|
| Weight | 523 lb |
| Color / Finish | 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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