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      4-ton central heat pump · A Series

      KERR A-KXP60SA-1

      Below average cooling efficiency and average heating efficiency for a 4-ton central heat pump, and certified for cold climates.

      Ranks #220 of 319 4 ton central heat pumps for cooling efficiency, and costs about $1,668 a year to run in a mixed climate like Atlanta.

      SEER2
      16.0 Cooling efficiency over a season
      Below average · beats 26%
      HSPF2
      9.0 Heating efficiency over a season
      Average · beats 54%
      EER2
      10.0 Cooling efficiency on a 95°F day
      Below average · beats 10%
      Heat at 5°F
      52,000 BTU/h93% of its 47°F output
      Below average · beats 9%

      A good fit if…

      • Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 52,000 BTU/h at 5°F.
      • You want steady temperatures and quiet running - the compressor varies its speed.

      Think twice if…

      • Cooling cost matters most - its SEER2 is below average for central heat pumps.

      Calculate my running cost

      Details

      Specifications4 ton, R-454B
      General
      BrandKERR
      Outdoor unit modelA-KXP60SA-1
      SeriesA Series
      TypeCentral heat pump
      Nominal size4 ton
      CompressorVariable-speed units run longer at low powerContinuously variable
      RefrigerantR-454B
      Connected (smart) capableNo
      On the market sinceMarch 20, 2025
      Last certifiedSeptember 1, 2026
      Cooling
      SEER2Seasonal efficiency, higher is better16.0 (range 15.2-16.0)
      EER2Efficiency at 95°F outdoors10.0
      Cooling capacity47,000-54,000 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better8.1-9.0
      Capacity at 47°F56,000-58,000 BTU/h
      Capacity at 17°F36,000-45,000 BTU/h
      Capacity at 5°F43,000-52,000 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater1.80-1.83
      ENERGY STAR cold climateYes
      Heating output as it gets colder93% kept at 5°F

      Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with B-KXP60SA-1 at the standard test temperatures, in BTU/h:

      Certified matchups5 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.
      B-KXP60SA-1 · cold climate16.010.09.052,000217169715
      KXP48/60C1A · cold climate16.010.08.545,000217482404
      MXP48/60C1A · cold climate16.010.08.545,000218724448
      KXP48/60D1A · cold climate15.210.08.143,000217482405
      MXP48/60D1A · cold climate15.210.08.143,000218724449
      Yearly running cost in 10 large cities$1,525-$3,960

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

      Questions5
      What is the SEER2 rating of the KERR A-KXP60SA-1?
      The KERR A-KXP60SA-1 is rated at up to 16.0 SEER2 and 10.0 EER2 for cooling and up to 9.0 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 5 certified matchups SEER2 ranges from 15.2-16.0.
      Is the KERR A-KXP60SA-1 good for cold climates?
      Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 52,000 BTU/h at 5°F with a COP of 1.83, so it is still 1.8 times as efficient as electric resistance heat at that temperature.
      How much does the KERR A-KXP60SA-1 cost to run per year?
      At its rated efficiency it costs about $1,525-$3,960 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,864 in Phoenix and $3,296 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 KERR A-KXP60SA-1?
      ENERGY STAR lists 5 certified combinations for this outdoor unit. The highest-rated ones use B-KXP60SA-1, KXP48/60C1A, MXP48/60C1A.
      What refrigerant does the KERR A-KXP60SA-1 use?
      It uses R-454B.

      Running cost and savings

      Pre-filled with this model. Pick your city and what you heat with today; everything else is optional.

      Heat pump $1,841/yrYou save $906/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 KERR A-KXP60SA-1
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $1,841
      Current system, per year
      $2,747
      You save per year
      $906
      Payback
      21.5 years
      Net after 10 years
      -$10,442

      Cooling $1,144Heating $697Electricity used: 11,506 kWhSaved vs. a minimum-efficiency heat pump: $275

      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.

      Similar 4 ton models

      See all 319 4 ton central heat pumps, ranked

      Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of September 1, 2026. How we use the data.