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      4-ton central heat pump · QUIETCOMFORT DELUXE 20 VS HP

      ACIQ B5H0V48*K*AAA

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

      Ranks #20 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/h73% 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
      BrandACIQ
      Also sold asKenmore, Heil, Arcoaire, Airquest, Tempstar, Comfortmaker, Keeprite, Day & Night
      Outdoor unit modelB5H0V48*K*AAA
      SeriesQUIETCOMFORT DELUXE 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 certifiedSeptember 16, 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 colder73% kept at 5°F

      Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with EVD5X61M24A*+WALLCON at the standard test temperatures, in BTU/h:

      Certified matchups2,961 indoor units

      The same outdoor unit scores differently with each indoor unit and furnace. The 60 highest-rated of 2,961 are shown. Ask your installer for the AHRI reference number of the exact system you are quoted.

      Indoor unitFurnaceSEER2EER2HSPF2Heat @5°FAHRI ref.
      EVD5X61M24A*+WALLCON · cold climate*97CTN1202422A*19.510.59.536,600218165627
      EVD5X61M24A*+WALLCON · cold climate*97CTN1002122A*19.510.59.536,600218165626
      EVD5X61M21A*+WALLCON · cold climate*97CTN1002122A*19.510.59.536,800218165621
      EVM5X61M24A*+WALLCON · cold climate*97CTN1202422A*19.510.59.536,600218165579
      EVM5X61M24A*+WALLCON · cold climate*97CTN1002122A*19.510.59.536,600218165578
      EVD5X61M24A*+WALLCON · cold climate*96CTN1202422B*19.510.59.536,600218165499
      EVD5X61M24A*+WALLCON · cold climate*96CTN1002122B*19.510.59.536,800218165498
      EVD5X61M24A*+WALLCON · cold climate*97CMN1202422B*19.510.59.536,800218165497
      EVD5X61M24A*+WALLCON · cold climate*97CMN1002122B*19.510.59.536,800218165496
      EVD5X61M24A*+WALLCON · cold climate*80CTL1352422B*19.510.59.536,600218165492
      EVD5X61M24A*+WALLCON · cold climate*80CTL0902120B*19.510.59.536,600218165491
      EVD5X61M21A*+WALLCON · cold climate*96CTN1002122B*19.510.59.536,800218165489
      EVD5X61M21A*+WALLCON · cold climate*97CMN1002122B*19.510.59.536,800218165487
      EVD5X61M21A*+WALLCON · cold climate*80CTL1102120B*19.510.59.536,600218165481
      EVD5X61M21A*+WALLCON · cold climate*80CTL0902120B*19.510.59.536,600218165480
      EVD5X61M24A*+WALLCON · cold climate*97CTN1202422A*19.510.59.536,600218166940
      EVD5X61M24A*+WALLCON · cold climate*97CTN1202422A*19.510.59.536,600218166939
      EVD5X61M24A*+WALLCON · cold climate*97CTN1202422A*19.510.59.536,600218166938
      EVD5X61M24A*+WALLCON · cold climate*97CTN1002122A*19.510.59.536,600218166937
      EVD5X61M24A*+WALLCON · cold climate*97CTN1002122A*19.510.59.536,600218166936
      EVD5X61M24A*+WALLCON · cold climate*97CTN1002122A*19.510.59.536,600218166935
      EVD5X61M21A*+WALLCON · cold climate*97CTN1002122A*19.510.59.536,800218166922
      EVD5X61M21A*+WALLCON · cold climate*97CTN1002122A*19.510.59.536,800218166921
      EVD5X61M21A*+WALLCON · cold climate*97CTN1002122A*19.510.59.536,800218166920
      EVM5X61M24A*+WALLCON · cold climate*97CTN1202422A*19.510.59.536,600218166796
      EVM5X61M24A*+WALLCON · cold climate*97CTN1202422A*19.510.59.536,600218166795
      EVM5X61M24A*+WALLCON · cold climate*97CTN1202422A*19.510.59.536,600218166794
      EVM5X61M24A*+WALLCON · cold climate*97CTN1002122A*19.510.59.536,600218166793
      EVM5X61M24A*+WALLCON · cold climate*97CTN1002122A*19.510.59.536,600218166792
      EVM5X61M24A*+WALLCON · cold climate*97CTN1002122A*19.510.59.536,600218166791
      EVD5X61M24A*+WALLCON · cold climate*96CTN1202422B*19.510.59.536,600218166556
      EVD5X61M24A*+WALLCON · cold climate*96CTN1202422B*19.510.59.536,600218166555
      EVD5X61M24A*+WALLCON · cold climate*96CTN1202422B*19.510.59.536,600218166554
      EVD5X61M24A*+WALLCON · cold climate*96CTN1002122B*19.510.59.536,800218166553
      EVD5X61M24A*+WALLCON · cold climate*96CTN1002122B*19.510.59.536,800218166552
      EVD5X61M24A*+WALLCON · cold climate*96CTN1002122B*19.510.59.536,800218166551
      EVD5X61M24A*+WALLCON · cold climate*97CMN1202422B*19.510.59.536,800218166550
      EVD5X61M24A*+WALLCON · cold climate*97CMN1202422B*19.510.59.536,800218166549
      EVD5X61M24A*+WALLCON · cold climate*97CMN1202422B*19.510.59.536,800218166548
      EVD5X61M24A*+WALLCON · cold climate*97CMN1002122B*19.510.59.536,800218166547
      EVD5X61M24A*+WALLCON · cold climate*97CMN1002122B*19.510.59.536,800218166546
      EVD5X61M24A*+WALLCON · cold climate*97CMN1002122B*19.510.59.536,800218166545
      EVD5X61M24A*+WALLCON · cold climate*80CTL1352422B*19.510.59.536,600218166535
      EVD5X61M24A*+WALLCON · cold climate*80CTL1352422B*19.510.59.536,600218166534
      EVD5X61M24A*+WALLCON · cold climate*80CTL1352422B*19.510.59.536,600218166533
      EVD5X61M24A*+WALLCON · cold climate*80CTL0902120B*19.510.59.536,600218166532
      EVD5X61M24A*+WALLCON · cold climate*80CTL0902120B*19.510.59.536,600218166531
      EVD5X61M24A*+WALLCON · cold climate*80CTL0902120B*19.510.59.536,600218166530
      EVD5X61M21A*+WALLCON · cold climate*96CTN1002122B*19.510.59.536,800218166526
      EVD5X61M21A*+WALLCON · cold climate*96CTN1002122B*19.510.59.536,800218166525
      EVD5X61M21A*+WALLCON · cold climate*96CTN1002122B*19.510.59.536,800218166524
      EVD5X61M21A*+WALLCON · cold climate*97CMN1002122B*19.510.59.536,800218166520
      EVD5X61M21A*+WALLCON · cold climate*97CMN1002122B*19.510.59.536,800218166519
      EVD5X61M21A*+WALLCON · cold climate*97CMN1002122B*19.510.59.536,800218166518
      EVD5X61M21A*+WALLCON · cold climate*80CTL1102120B*19.510.59.536,600218166502
      EVD5X61M21A*+WALLCON · cold climate*80CTL1102120B*19.510.59.536,600218166501
      EVD5X61M21A*+WALLCON · cold climate*80CTL1102120B*19.510.59.536,600218166500
      EVD5X61M21A*+WALLCON · cold climate*80CTL0902120B*19.510.59.536,600218166499
      EVD5X61M21A*+WALLCON · cold climate*80CTL0902120B*19.510.59.536,600218166498
      EVD5X61M21A*+WALLCON · cold climate*80CTL0902120B*19.510.59.536,600218166497
      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 ACIQ B5H0V48*K*AAA?
      The ACIQ B5H0V48*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 2961 certified matchups SEER2 ranges from 15.5-19.5.
      Is the ACIQ B5H0V48*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 ACIQ B5H0V48*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 ACIQ B5H0V48*K*AAA?
      ENERGY STAR lists 2961 certified combinations for this outdoor unit. The highest-rated ones use EVD5X61M24A*+WALLCON, EVD5X61M21A*+WALLCON, EVM5X61M24A*+WALLCON.
      What refrigerant does the ACIQ B5H0V48*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 ACIQ B5H0V48*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 September 16, 2026. How we use the data.