
MRCOOL Universal R32 DC Inverter 48K BTU 4 Ton 18 SEER2 Single Phase Packaged Heat Pump, MDPH18048D
Overview
```The MRCOOL® 2nd Generation Universal® Series 48K DC Inverter Packaged Heat Pump is an all-in-one ducted heating and cooling system built for efficient year-round comfort. With advanced DC inverter technology, the compressor can vary output in real time to better match demand, helping reduce wasted energy, minimize temperature swings, lower operating noise, and reduce wear from frequent start-stop cycling.
Rated at 18 SEER2, this 4 ton packaged heat pump is designed to deliver strong airflow and dependable comfort while helping manage utility costs. It is built for challenging climates, with heating operation down to -22°F and cooling performance described for high outdoor temperatures up to 125°F.
This Universal® packaged system uses R-32 refrigerant, a lower-GWP refrigerant compared with many older refrigerants. It also supports flexible installation layouts, including vertical upflow/downflow and horizontal setup, making it a strong option for both replacement projects and new installations.
```Highlights
- DC inverter performance: Variable-speed compressor operation helps maintain steady indoor temperatures and reduce unnecessary energy use.
- 4 ton packaged heat pump: All-in-one ducted heating and cooling system with 47,000 BTU cooling and 47,000 BTU heating capacity.
- High efficiency: Rated at 18 SEER2, 11.2 EER2, and 8.5 HSPF2.
- Cold-climate heating: Listed for heating operation down to -22°F.
- R-32 refrigerant: Uses 204.6 oz of R-32 refrigerant.
- Flexible installation: Designed for vertical upflow/downflow and horizontal installation configurations.
- Optional auxiliary heat: Compatible with optional 6kW, 9kW, or 12kW heat kits.
- Strong warranty coverage: 10-year parts and 10-year labor warranty listed.
Installation requirements, airflow setup, clearance, ducting, electrical requirements, and code compliance should be verified in the installation manual and local codes.
```What’s Included
- MRCOOL® Universal R32 Packaged Heat Pump: MDPH18048D
- Factory-charged packaged heat pump system using R-32 refrigerant
- Documentation listed below in Documents & Downloads
Auxiliary electric heat kits are available separately and are not included.
Warranty
- 10-year parts warranty
- 10-year labor warranty
- 10-year parts and labor warranty listed as base warranty
Warranty terms, registration requirements, and coverage limitations are controlled by MRCOOL®. Review the warranty document before installation.
System Specs
Model: MDPH18048D | Series: Universal Package R32
```| Brand Name | MRCOOL |
| Series | Universal Package R32 |
| Model | MDPH18048D |
| GTIN | 00840255592123 |
| UPC | 840255592123 |
| Unit Type | Package Heat Pump |
| Short Description | MRCOOL DC Inverter 48K BTU 4T, R32, 18 SEER2 Single Phase Packaged Heat Pump |
| SEER2 | 18 |
| EER2 | 11.2 |
| HSPF2 | 8.5 |
| Tonnage | 4 Ton |
| Cooling Capacity | 47,000 BTU |
| Heating Capacity | 47,000 BTU |
| Voltage / Phase / Cycle | 208/230V | 1 Phase | 60 Hz |
| Max Fuse Breaker | 45A |
| Min Circuit Ampacity | 39.1A |
| Color | Grey |
| Refrigerant Type | R-32 |
| Refrigerant Volume | 204.6 oz |
| Sound Rating | 68 dB(A) |
| Inverter | Yes |
| Min Ambient Cooling | 23°F |
| Min Ambient Heating | -22°F |
| Drain Connection Size | 3/4" |
| Compressor Motor Type | Inverter Rotary |
| Condenser Fan Motor Type | Direct Drive |
| Condenser Fan Motor RPM | 720 |
| Blower Motor Type | Direct Drive |
| Blower Motor Speeds | 10 |
| Blower Motor RPM | 1060 |
| Metering Device | EEV |
| Auxiliary Heater Included | No |
| Auxiliary Heater Available | Yes |
| Auxiliary Heater Sizes | 6kW, 9kW, 12kW |
| AHRI Certified | Yes |
| Base Warranty | 10 Year Parts & Labor Warranty |
| Base Parts Warranty | 10 Year Parts |
| Base Labor Warranty | 10 Year Labor |
| Contains Electronics | Yes |
| Contains Chemicals | Yes |
| Contains Compressed Gas | Yes |
| Net Dimensions | 44"W x 49.25"H x 44"D |
| Net Weight | 628.3 lbs |
| Gross Dimensions | 44.6"W x 50.78"H x 44.6"D |
| Gross Weight | 650 lbs |
Documents & Downloads
| Brochure | Open Brochure |
| Install Manual | Open Install Manual |
| Warranty Document | Open Warranty Document |
| French Install Manual | Open French Install Manual |
| French Warranty Document | Open French Warranty Document |
| AHRI Certificates | Open AHRI Certificates |
| Energy Guide Certificates | Open Energy Guide Certificates |
Important
- Electrical: 208/230V, 1 phase, 60 Hz, with 39.1A minimum circuit ampacity and 45A max fuse breaker.
- Auxiliary heat: Optional heat kits are available in 6kW, 9kW, and 12kW sizes. Auxiliary heat is not included.
- Operating range: Minimum ambient cooling is listed at 23°F and minimum ambient heating is listed at -22°F.
- Installation flexibility: Designed for vertical upflow/downflow and horizontal installation configurations. Confirm final layout, airflow direction, ducting, and clearances in the installation manual.
- Certifications: AHRI certified.
- Handling: This product contains electronics, chemicals, and compressed gas.
FAQs
```What type of system is this?
This is a packaged heat pump. The heating and cooling components are contained in one outdoor cabinet and designed for ducted applications.
What is the main benefit of DC inverter technology?
The inverter-driven compressor can adjust output based on demand, helping maintain steadier indoor temperatures, reduce energy waste, lower noise, and reduce wear from frequent cycling.
How cold can this system heat?
The minimum ambient heating temperature is listed at -22°F.
Does this unit include auxiliary heat?
No. Auxiliary heat is not included. Optional auxiliary heat kits are available in 6kW, 9kW, and 12kW sizes.
What refrigerant does it use?
This model uses R-32 refrigerant with a listed refrigerant volume of 204.6 oz.
What warranty is included?
The base warranty is listed as a 10-year parts and labor warranty, with 10-year parts and 10-year labor coverage.
























































































