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      4-ton central heat pump · ProComfort 20 VS HP

      Keeprite C5H0V48*K*AAA

      Excellent cooling efficiency and very good heating efficiency for a 4-ton central heat pump, and certified for cold climates.

      Ranks #23 of 319 4 ton central heat pumps for cooling efficiency, and costs about $1,350 a year to run in a mixed climate like Atlanta.

      SEER2
      19.5 Cooling efficiency over a season
      Excellent · beats 91%
      HSPF2
      9.5 Heating efficiency over a season
      Very good · beats 70%
      EER2
      10.5 Cooling efficiency on a 95°F day
      Below average · beats 17%
      Heat at 5°F
      37,600 BTU/h70% of its 47°F output
      Very good · beats 76%

      A good fit if…

      • You want low cooling bills - its SEER2 beats 91% of central heat pumps.
      • Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 37,600 BTU/h at 5°F.
      • It will heat most of the year - its HSPF2 beats 70% of central heat pumps.
      • You want steady temperatures and quiet running - the compressor varies its speed.

      Think twice if…

      • Nothing stands out - its ratings have no weak spot for its class.

      Calculate my running cost

      Details

      Specifications4 ton, R-454B
      General
      BrandKeeprite
      Also sold asComfortmaker, Day & Night
      Outdoor unit modelC5H0V48*K*AAA
      SeriesProComfort 20 VS HP
      TypeCentral heat pump
      Nominal size4 ton
      CompressorVariable-speed units run longer at low powerContinuously variable
      RefrigerantR-454B
      Connected (smart) capableNo
      On the market sinceJune 12, 2023
      Last certifiedMay 1, 2026
      Cooling
      SEER2Seasonal efficiency, higher is better19.5 (range 15.5-19.5)
      EER2Efficiency at 95°F outdoors9.0-10.5
      Cooling capacity43,500-49,000 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better8.5-9.5
      Capacity at 47°F47,000-50,000 BTU/h
      Capacity at 17°F41,000-47,500 BTU/h
      Capacity at 5°F33,000-37,600 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater1.92-2.20
      ENERGY STAR cold climateYes
      Heating output as it gets colder70% kept at 5°F

      Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with FCMA5B60L0D*+WALLCON at the standard test temperatures, in BTU/h:

      Certified matchups1,128 indoor units

      The same outdoor unit scores differently with each indoor unit and furnace. The 60 highest-rated of 1,128 are shown. Ask your installer for the AHRI reference number of the exact system you are quoted.

      Indoor unitFurnaceSEER2EER2HSPF2Heat @5°FAHRI ref.
      FCMA5B60L0D*+WALLCON · cold climate-19.510.59.533,000215675348
      FCMA5B60L0D*+WALLCON · cold climate-19.510.59.533,000215675349
      FCMA5B60L0D*+WALLCON · cold climate-19.510.59.533,000215675350
      EVM5X61M24A*+WALLCON · cold climate*80CTL0902120B*19.510.59.536,600215675988
      EVM5X61M24A*+WALLCON · cold climate*80CTL0902120B*19.510.59.536,600215675990
      EVM5X61M24A*+WALLCON · cold climate*80CTL0902120B*19.510.59.536,600215675989
      EVM5X61M24A*+WALLCON · cold climate*80CTL1102120B*19.510.59.536,600215675998
      EVM5X61M24A*+WALLCON · cold climate*80CTL1102120B*19.510.59.536,600215675999
      EVM5X61M24A*+WALLCON · cold climate*80CTL1102120B*19.510.59.536,600215676000
      EVM5X61M24A*+WALLCON · cold climate*80CTL1352422B*19.510.59.536,600215676010
      EVM5X61M24A*+WALLCON · cold climate*80CTL1352422B*19.510.59.536,600215676008
      EVM5X61M24A*+WALLCON · cold climate*80CTL1352422B*19.510.59.536,600215676009
      EVM5X61M24A*+WALLCON · cold climate*97CMN1002122B*19.510.59.536,600215676059
      EVM5X61M24A*+WALLCON · cold climate*97CMN1002122B*19.510.59.536,600215676058
      EVM5X61M24A*+WALLCON · cold climate*97CMN1002122B*19.510.59.536,600215676060
      EVM5X61M24A*+WALLCON · cold climate*97CMN1202422B*19.510.59.536,800215676068
      EVM5X61M24A*+WALLCON · cold climate*97CMN1202422B*19.510.59.536,800215676069
      EVM5X61M24A*+WALLCON · cold climate*97CMN1202422B*19.510.59.536,800215676070
      EVM5X61M24A*+WALLCON · cold climate*96CTN1002122B*19.510.59.536,600215676080
      EVM5X61M24A*+WALLCON · cold climate*96CTN1002122B*19.510.59.536,600215676079
      EVM5X61M24A*+WALLCON · cold climate*96CTN1002122B*19.510.59.536,600215676078
      EVM5X61M24A*+WALLCON · cold climate*96CTN1202422B*19.510.59.536,600215676089
      EVM5X61M24A*+WALLCON · cold climate*96CTN1202422B*19.510.59.536,600215676088
      EVM5X61M24A*+WALLCON · cold climate*96CTN1202422B*19.510.59.536,600215676090
      EVD5X61M21A*+WALLCON · cold climate*80CTL0902120B*19.510.59.536,600215676749
      EVD5X61M21A*+WALLCON · cold climate*80CTL0902120B*19.510.59.536,600215676750
      EVD5X61M21A*+WALLCON · cold climate*80CTL0902120B*19.510.59.536,600215676748
      EVD5X61M21A*+WALLCON · cold climate*80CTL1102120B*19.510.59.536,600215676759
      EVD5X61M21A*+WALLCON · cold climate*80CTL1102120B*19.510.59.536,600215676758
      EVD5X61M21A*+WALLCON · cold climate*80CTL1102120B*19.510.59.536,600215676760
      EVD5X61M21A*+WALLCON · cold climate*97CMN1002122B*19.510.59.536,800215676818
      EVD5X61M21A*+WALLCON · cold climate*97CMN1002122B*19.510.59.536,800215676819
      EVD5X61M21A*+WALLCON · cold climate*97CMN1002122B*19.510.59.536,800215676820
      EVD5X61M21A*+WALLCON · cold climate*96CTN1002122B*19.510.59.536,800215676839
      EVD5X61M21A*+WALLCON · cold climate*96CTN1002122B*19.510.59.536,800215676840
      EVD5X61M21A*+WALLCON · cold climate*96CTN1002122B*19.510.59.536,800215676838
      EVD5X61M24A*+WALLCON · cold climate*80CTL0902120B*19.510.59.536,600215676879
      EVD5X61M24A*+WALLCON · cold climate*80CTL0902120B*19.510.59.536,600215676880
      EVD5X61M24A*+WALLCON · cold climate*80CTL0902120B*19.510.59.536,600215676878
      EVD5X61M24A*+WALLCON · cold climate*80CTL1352422B*19.510.59.536,600215676889
      EVD5X61M24A*+WALLCON · cold climate*80CTL1352422B*19.510.59.536,600215676890
      EVD5X61M24A*+WALLCON · cold climate*80CTL1352422B*19.510.59.536,600215676888
      EVD5X61M24A*+WALLCON · cold climate*97CMN1002122B*19.510.59.536,800215676928
      EVD5X61M24A*+WALLCON · cold climate*97CMN1002122B*19.510.59.536,800215676929
      EVD5X61M24A*+WALLCON · cold climate*97CMN1002122B*19.510.59.536,800215676930
      EVD5X61M24A*+WALLCON · cold climate*97CMN1202422B*19.510.59.536,800215676940
      EVD5X61M24A*+WALLCON · cold climate*97CMN1202422B*19.510.59.536,800215676938
      EVD5X61M24A*+WALLCON · cold climate*97CMN1202422B*19.510.59.536,800215676939
      EVD5X61M24A*+WALLCON · cold climate*96CTN1002122B*19.510.59.536,800215676948
      EVD5X61M24A*+WALLCON · cold climate*96CTN1002122B*19.510.59.536,800215676949
      EVD5X61M24A*+WALLCON · cold climate*96CTN1002122B*19.510.59.536,800215676950
      EVD5X61M24A*+WALLCON · cold climate*96CTN1202422B*19.510.59.536,600215676960
      EVD5X61M24A*+WALLCON · cold climate*96CTN1202422B*19.510.59.536,600215676958
      EVD5X61M24A*+WALLCON · cold climate*96CTN1202422B*19.510.59.536,600215676959
      EVM5X61M24A*+WALLCON · cold climate*97CTN1002122A*19.510.59.536,600215682080
      EVM5X61M24A*+WALLCON · cold climate*97CTN1002122A*19.510.59.536,600215682079
      EVM5X61M24A*+WALLCON · cold climate*97CTN1002122A*19.510.59.536,600215682078
      EVM5X61M24A*+WALLCON · cold climate*97CTN1202422A*19.510.59.536,600215682089
      EVM5X61M24A*+WALLCON · cold climate*97CTN1202422A*19.510.59.536,600215682090
      EVM5X61M24A*+WALLCON · cold climate*97CTN1202422A*19.510.59.536,600215682088
      Yearly running cost in 10 large cities$1,148-$3,274

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

      Questions5
      What is the SEER2 rating of the Keeprite C5H0V48*K*AAA?
      The Keeprite C5H0V48*K*AAA is rated at up to 19.5 SEER2 and 10.5 EER2 for cooling and up to 9.5 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 1128 certified matchups SEER2 ranges from 15.5-19.5.
      Is the Keeprite C5H0V48*K*AAA good for cold climates?
      Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 37,600 BTU/h at 5°F with a COP of 2.20, so it is still 2.2 times as efficient as electric resistance heat at that temperature.
      How much does the Keeprite C5H0V48*K*AAA cost to run per year?
      At its rated efficiency it costs about $1,148-$3,274 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,443 in Phoenix and $2,757 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 Keeprite C5H0V48*K*AAA?
      ENERGY STAR lists 1128 certified combinations for this outdoor unit. The highest-rated ones use FCMA5B60L0D*+WALLCON, EVM5X61M24A*+WALLCON, EVD5X61M21A*+WALLCON.
      What refrigerant does the Keeprite C5H0V48*K*AAA 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 $1,447/yrYou save $1,043/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 Keeprite C5H0V48*K*AAA
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $1,447
      Current system, per year
      $2,490
      You save per year
      $1,043
      Payback
      17.3 years
      Net after 10 years
      -$7,568

      Cooling $857Heating $589Electricity used: 9,043 kWhSaved vs. a minimum-efficiency heat pump: $469

      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

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