4-ton central heat pump · MHP170 SERIES
MRCOOL MHP17048A-**A
Below average cooling and heating efficiency for a 4-ton central heat pump, but not rated for cold climates.
Ranks #274 of 319 4 ton central heat pumps for cooling efficiency, and costs about $1,495 a year to run in a mixed climate like Atlanta.
- SEER2
- 15.6 Cooling efficiency over a seasonBelow average · beats 17%
- HSPF2
- 8.3 Heating efficiency over a seasonBelow average · beats 30%
- EER2
- 12.5 Cooling efficiency on a 95°F dayVery good · beats 80%
- Heat at 5°F
- 25,600 BTU/h57% of its 47°F outputExcellent · beats 94%
A good fit if…
- You want a choice of indoor units - 19 certified pairings.
Think twice if…
- You often see nights below 0°F - it is not cold-climate certified.
- Cooling cost matters most - its SEER2 is below average for central heat pumps.
- You mainly need heat - its HSPF2 is below average for central heat pumps.
- You want the newest refrigerant - it uses R-410A, which is being phased down.
Details
Specifications
| General | |
|---|---|
| Brand | MRCOOL |
| Outdoor unit model | MHP17048A-**A |
| Series | MHP170 SERIES |
| Type | Central heat pump |
| Nominal size | 4 ton |
| CompressorVariable-speed units run longer at low power | Single stage |
| Refrigerant | R-410A |
| Connected (smart) capable | No |
| On the market since | October 25, 2022 |
| Last certified | October 27, 2025 |
| Cooling | |
| SEER2Seasonal efficiency, higher is better | 15.6 (range 15.2-15.6) |
| EER2Efficiency at 95°F outdoors | 12.5-13.0 |
| Cooling capacity | 46,500-48,000 BTU/h |
| Heating | |
| HSPF2Seasonal efficiency, higher is better | 8.0-8.3 |
| Capacity at 47°F | 44,500-47,000 BTU/h |
| Capacity at 17°F | 30,200-31,600 BTU/h |
| Capacity at 5°F | 24,200-25,600 BTU/h |
| COP at 5°F2.0 = twice as efficient as a space heater | 2.18-2.38 |
| ENERGY STAR cold climate | No |
Heating output as it gets colder
Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with MCHP51CNPA*+TDR+TXV at the standard test temperatures, in BTU/h:
Certified matchups
The same outdoor unit scores differently with each indoor unit and furnace. Ask your installer for the AHRI reference number of the exact system you are quoted.
| Indoor unit | Furnace | SEER2 | EER2 | HSPF2 | Heat @5°F | AHRI ref. |
|---|---|---|---|---|---|---|
| MCHP51CNPA*+TDR+TXV | MGM80SE090C5A | 15.6 | 12.5 | 8.3 | 25,200 | 211737253 |
| MCVP49CNPA+TDR+TXV | MGM80SE090C5A | 15.6 | 13.0 | 8.1 | 25,000 | 210325970 |
| MCVP60CNPA+TDR+TXV | MGM80SE090C5A | 15.6 | 13.0 | 8.1 | 25,200 | 210325979 |
| MCVP60CNPA+TDR+TXV | MGM80SE110C5A | 15.4 | 12.5 | 8.3 | 25,400 | 210325983 |
| MCHP51CNPA*+TDR+TXV | MGM96SE110C5XA | 15.4 | 12.5 | 8.3 | 25,400 | 211737295 |
| MCVP60CNPA+TDR+TXV | MGM96SE110C5XA | 15.4 | 12.5 | 8.1 | 25,200 | 210325981 |
| MCVP48CNPA+TDR+TXV | MGM80SE090C5A | 15.4 | 12.5 | 8.1 | 24,400 | 210441090 |
| MCVP60CNPA+TDR+TXV | MGM96SE090C4XA | 15.4 | 12.5 | 8.1 | 25,400 | 210325985 |
| MCVP48BNPA+TDR+TXV | MGM80SE090C5A | 15.4 | 12.5 | 8.1 | 24,400 | 210325966 |
| MCHP51CNPA*+TDR+TXV | MGM80SE110C5A | 15.2 | 12.5 | 8.3 | 25,600 | 211737262 |
| MCVP48BNPA+TDR+TXV | MGM96SE110C5XA | 15.2 | 12.5 | 8.1 | 24,200 | 210325968 |
| MCVP49CNPA+TDR+TXV | MGM80SE110C5A | 15.2 | 12.5 | 8.1 | 25,600 | 210325974 |
| MCVP48CNPA+TDR+TXV | MGM96SE110C5XA | 15.2 | 12.5 | 8.1 | 24,200 | 210441093 |
| MCVP49CNPA+TDR+TXV | MGM96SE090C4XA | 15.2 | 12.5 | 8.1 | 25,400 | 210325976 |
| MCVP49CNPA+TDR+TXV | MGM96SE110C5XA | 15.2 | 12.5 | 8.1 | 25,400 | 210325972 |
| MCVP48BNPA+TDR+TXV | MGM80SE090B4A | 15.2 | 12.5 | 8.1 | 24,200 | 210325963 |
| MCHP60DNPA*+TDR+TXV | MGM96SE135D5XA | 15.2 | 12.5 | 8.1 | 24,600 | 211737340 |
| MCHP48CNPA*+TDR+TXV | MGM80SE090C5A | 15.2 | 12.5 | 8.0 | 24,400 | 211737075 |
| MCHP48CNPA*+TDR+TXV | MGM96SE110C5XA | 15.2 | 12.5 | 8.0 | 24,800 | 211737150 |
Yearly running cost in 10 large cities
- Phoenix, AZ$1,715/yr
- Miami, FL$1,426/yr
- Houston, TX$1,535/yr
- Atlanta, GA$1,495/yr
- Los Angeles, CA$1,442/yr
- New York, NY$3,502/yr
- Chicago, IL$2,829/yr
- Denver, CO$2,341/yr
- Seattle, WA$1,430/yr
- Minneapolis, MN$2,892/yr
At each state's average electricity price and the city's typical heating and cooling hours.
Questions
- What is the SEER2 rating of the MRCOOL MHP17048A-**A?
- The MRCOOL MHP17048A-**A is rated at up to 15.6 SEER2 and 12.5 EER2 for cooling and up to 8.3 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 19 certified matchups SEER2 ranges from 15.2-15.6.
- Is the MRCOOL MHP17048A-**A good for cold climates?
- It is not cold-climate certified: none of its matchups meet the ENERGY STAR cold-climate criteria (a COP of at least 1.75 at 5°F among other limits). In places with frequent sub-zero nights, pick a cold-climate 4-ton model.
- How much does the MRCOOL MHP17048A-**A cost to run per year?
- At its rated efficiency it costs about $1,426-$3,502 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,715 in Phoenix and $2,892 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.
- Which indoor units work with the MRCOOL MHP17048A-**A?
- ENERGY STAR lists 19 certified combinations for this outdoor unit. The highest-rated ones use MCHP51CNPA*+TDR+TXV, MCVP49CNPA+TDR+TXV, MCVP60CNPA+TDR+TXV.
- What refrigerant does the MRCOOL MHP17048A-**A use?
- It uses R-410A. R-410A is being phased down under the EPA AIM Act, and new systems are moving to R-454B and R-32.
Running cost and savings
Pre-filled with this model. Pick your city and what you heat with today; everything else is optional.
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See all 319 4 ton central heat pumps, ranked
Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of October 27, 2025. How we use the data.