MRCOOL
MRCOOL DC Inverter 48K BTU 4T, R32, 18 SEER2 Single Phase Packaged Heat Pump
4 Ton | SEER2 18 | R-32 | 208/230V
- 47000 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 48K Inverter Packaged Heat Pump delivers efficient, dependable heating and cooling in a comprehensive system designed for year-round comfort.
Built with advanced DC inverter technology, the compressor operates at variable speeds, adjusting output in real time to meet your home’s exact demands. This design reduces wasted energy, extends system life by minimizing wear, and keeping noise levels low.
With a strong 18 SEER2 efficiency rating, the Universal® 48K helps lower utility bills while maintaining powerful airflow and consistent performance. It is engineered to handle extreme climates, providing heat in temperatures as low as –22°F (–30°C) and cooling in conditions as high as 125°F (52°C). No matter the weather, homeowners can rely on this system to keep indoor spaces comfortable.
The use of R-32 refrigerant makes this model more environmentally responsible than systems using older refrigerants. With a lower Global Warming Potential, R-32 aligns with modern ecological standards and supports sustainable home upgrades.
Installation flexibility is another benefit with a design that allows for vertical upflow/downflow and horizontal setup. This adaptability makes the Universal® 48K ideal for both replacement projects and new installations.
Durability and reliability are built in, with rugged construction to withstand year-round operation. Backed by a 10-year parts and labor warranty, the MRCOOL® Universal® Series 48K provides lasting value, comfort, and peace of mind for homeowners
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 | 840255592123 |
|---|---|
| Series | Universal Package R32 |
| Refrigerant charge (oz) | 204.6 |
| Heating capacity (BTU/h) | 47,000 |
| Cycle (Hz) | 60 |
| Min circuit ampacity (A) | 39.1 |
| Max fuse / breaker (A) | 45 |
| 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 44.6 |
| Shipping weight (lbs) | 650 |
Documents
Technical Specifications
Performance
| System Type | Package Heat Pump |
|---|---|
| Capacity | 47000 BTU |
| Tonnage | 4 Ton |
| Compressor / Stages | Inverter Rotary |
| SEER2 | 18 |
| EER2 | 11.2 |
| HSPF2 | 8.5 |
| Sound Level | 68 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 44 |
|---|---|
| Weight | 628.3 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.
You May Also Like
Make sure it is the right size, and that you have the rest of it
Most outdoor units ship alone. If you are not certain of the capacity, or of what has to go with this unit, these two will work it out with you.
Still deciding on the right equipment?
Our HVAC specialists can help you confirm sizing and compatibility before you buy.