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      5-ton central heat pump · Performance

      Mainline MPP15AZ60AJ2N

      Below average cooling and heating efficiency for a 5-ton central heat pump, and certified for cold climates.

      Ranks #53 of 100 5 ton central heat pumps for cooling efficiency, and costs about $1,864 a year to run in a mixed climate like Atlanta.

      SEER2
      16.0 Cooling efficiency over a season
      Below average · beats 26%
      HSPF2
      8.1 Heating efficiency over a season
      Below average · beats 20%
      EER2
      11.7 Cooling efficiency on a 95°F day
      Average · beats 43%
      Heat at 5°F
      30,600 BTU/h54% of its 47°F output
      Very good · beats 88%

      A good fit if…

      • Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 30,600 BTU/h at 5°F.

      Think twice if…

      • 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.

      Calculate my running cost

      Details

      Specifications5 ton, R-410A
      General
      BrandMainline
      Also sold asDuraSTAR, Thermal Zone
      Outdoor unit modelMPP15AZ60AJ2N
      SeriesPerformance
      TypeCentral heat pump
      Nominal size5 ton
      CompressorVariable-speed units run longer at low powerTwo-stage
      RefrigerantR-410A
      Connected (smart) capableNo
      On the market sinceMarch 2, 2023
      Last certifiedJuly 7, 2026
      Cooling
      SEER2Seasonal efficiency, higher is better16.0 (range 16.0)
      EER2Efficiency at 95°F outdoors11.7
      Cooling capacity57,000 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better8.1
      Capacity at 47°F57,000 BTU/h
      Capacity at 17°F38,500 BTU/h
      Capacity at 5°F30,600 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater2.30
      ENERGY STAR cold climateYes
      Heating output as it gets colder54% kept at 5°F

      Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with MPH2CZ6024STANN at the standard test temperatures, in BTU/h:

      Certified matchups1 indoor units

      The same outdoor unit scores differently with each indoor unit. Ask your installer for the AHRI reference number of the exact system you are quoted.

      Indoor unitSEER2EER2HSPF2Heat @5°FAHRI ref.
      MPH2CZ6024STANN · cold climate16.011.78.130,600211641673
      Same unit, other model numbers2

      These model numbers have exactly the same certified ratings and matchups as the Mainline MPP15AZ60AJ2N: the same equipment under another brand, or a variant code for voltage, colour or market. Everything on this page applies to them.

      Yearly running cost in 10 large cities$1,674-$4,451

      At each state's average electricity price and the city's typical heating and cooling hours.

      Questions6
      What is the SEER2 rating of the Mainline MPP15AZ60AJ2N?
      The Mainline MPP15AZ60AJ2N is rated at up to 16.0 SEER2 and 11.7 EER2 for cooling and up to 8.1 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.
      Is the Mainline MPP15AZ60AJ2N good for cold climates?
      Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 30,600 BTU/h at 5°F with a COP of 2.30, so it is still 2.3 times as efficient as electric resistance heat at that temperature.
      How much does the Mainline MPP15AZ60AJ2N cost to run per year?
      At its rated efficiency it costs about $1,674-$4,451 a year in electricity in large U.S. cities, depending on climate and local rates - for example $2,060 in Phoenix and $3,716 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.
      Is the Mainline MPP15AZ60AJ2N the same as the DuraSTAR DRHP15A60AJ2AN?
      Yes, as far as the certified ratings go. ENERGY STAR lists 3 model numbers with identical efficiency, capacity and matchups, which means the same outdoor unit sold under a different brand or with a minor variant code (voltage, colour or region). The full list is on this page.
      Which indoor units work with the Mainline MPP15AZ60AJ2N?
      ENERGY STAR lists 1 certified combination for this outdoor unit. The highest-rated one uses MPH2CZ6024STANN.
      What refrigerant does the Mainline MPP15AZ60AJ2N 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.

      Heat pump $2,042/yrYou save $897/yrSee details ↓
      1. Where you live
      Adjust heating and cooling hours

      Filled in from your city's climate. Change them if you run the system much more or less than usual.

      2. The heat pump Mainline MPP15AZ60AJ2N
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $2,042
      Current system, per year
      $2,939
      You save per year
      $897
      Payback
      24.0 years
      Net after 10 years
      -$12,531

      Cooling $1,254Heating $788Electricity used: 12,763 kWhSaved vs. a minimum-efficiency heat pump: $212

      Estimates use the unit's rated SEER2 and HSPF2, full-load hours derived from NOAA 1991-2020 degree days, average residential electricity prices from the U.S. EIA (12 months to July 2026) and fuel prices from EIA (2025 for natural gas, week of 2026-10-05 for propane and heating oil). Very cold days that need backup heat are not modelled. Federal minimum for comparison: 14.3 SEER2 / 7.5 HSPF2.

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      Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of July 7, 2026. How we use the data.